locked
CloudAppendBlob downloading slow and getting even slower for more recent blobs > 5 seconds for ~150KB RRS feed

  • Question

  • Hello all, 

    we are using Azure Append Blobs to log long-term data but we are finding it is very slow to read back. Generally the blobs are in the region of 150 KB, appended to with 600 or so bytes of data a couple of hundred times over the course of a day. Once the day is complete the blob will never be written to again, just read. However, when our application restarts we usually need to read in the last 5 blobs but we are finding this is taking what we consider to be exceptionally long periods of time, given the low amount of data i.e. 5 files of 150KB in size, in the same directory, read concurrently is taking greater than 5 seconds now. This was probably taking a second or so a few weeks ago (which we still think is quite slow but certainly more bearable).

    To further complicate things, it 'appears' this time is getting greater for blobs that have been created more recently even though there is probably no difference between them on the ones created a couple of weeks ago.

    In order to illustrate this I created a simple app that downloads all of the blobs in one virtual directory of our container and logs the download times to a file (see the two sections below). We are using tasks to download 5 blobs in parallel, hence why there are individual download times and another concurrent download time every 5 blobs. The concurrency helps greatly but when some files are taking 5 or 6 seconds to download it is causing us massive delays on startup. The container itself contains 10 of these directories suggesting we have around 1280 blobs of ~150KB in size so far which is tiny compared to the limits of a storage account/container in Azure. I've also run the test with the blobs in normal and reversed order to illustrate the fact that newer blobs seem to take longer to download than the older ones and to remove throttling as being the culprit. For reference, this is all running on a Standard A2 VM running in the same regional resource group as the storage account. I'm happy to include the code in the test app if anyone thinks it will help.

    For reference, I have turned on logging in Azure, the average E2E and Server latencies are around 40ms, peak 250ms. Examining the slow requests in Fiddler are inconclusive although it does confirm the long times for the requsts. The timeline tab appears to show lots of dots for the slow requests, but only one for the quick ones. I haven't found out what is happening there yet though.

    As always, any help with this is greatly appreciated.

    Blob order is currently oldest blobs first
    Blob File Dump Normal Order 11-20-2015 6-31-30 PM
    Download took 1173ms, 112 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563a9c0004-00000038-0001-01, block count: 216
    Download took 1165ms, 121 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563a9c0004-00000039-0001-01, block count: 226
    Download took 1378ms, 126 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563a9c0004-0000003b-0001-01, block count: 236
    Download took 1379ms, 127 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563a9c0004-0000003a-0001-01, block count: 236
    Download took 1393ms, 126 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563a9c0004-0000003c-0001-01, block count: 234
    Concurrent Download took 1397ms
    Download took 1261ms, 103 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563a9c0004-0000003f-0001-01, block count: 201
    Download took 1462ms, 122 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563a9c0004-0000003d-0001-01, block count: 230
    Download took 1507ms, 123 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563a9c0004-0000003e-0001-01, block count: 233
    Download took 1697ms, 156 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563bed8004-00000039-0001-01, block count: 286
    Download took 1699ms, 141 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563bed8004-00000038-0001-01, block count: 269
    Concurrent Download took 1700ms
    Download took 2351ms, 161 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563bed8004-0000003c-0001-01, block count: 297
    Download took 2378ms, 150 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563bed8004-0000003e-0001-01, block count: 284
    Download took 2455ms, 157 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563bed8004-0000003b-0001-01, block count: 291
    Download took 2456ms, 162 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563bed8004-0000003a-0001-01, block count: 298
    Download took 2532ms, 160 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563bed8004-0000003d-0001-01, block count: 294
    Concurrent Download took 2533ms
    Download took 1916ms, 132 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563bed8004-0000003f-0001-01, block count: 252
    Download took 2360ms, 165 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563d3f0004-00000038-0001-01, block count: 316
    Download took 2499ms, 178 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563d3f0004-00000039-0001-01, block count: 326
    Download took 2561ms, 182 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563d3f0004-0000003b-0001-01, block count: 337
    Download took 2614ms, 190 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563d3f0004-0000003a-0001-01, block count: 349
    Concurrent Download took 2616ms
    Download took 213ms, 17 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563e908004-00000038-0001-01, block count: 33
    Download took 1665ms, 159 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563d3f0004-0000003f-0001-01, block count: 305
    Download took 1747ms, 176 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563d3f0004-0000003d-0001-01, block count: 331
    Download took 1779ms, 185 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563d3f0004-0000003c-0001-01, block count: 341
    Download took 1780ms, 175 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563d3f0004-0000003e-0001-01, block count: 328
    Concurrent Download took 1781ms
    Download took 136ms, 14 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563e908004-00000039-0001-01, block count: 27
    Download took 174ms, 18 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563e908004-0000003c-0001-01, block count: 35
    Download took 176ms, 18 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563e908004-0000003b-0001-01, block count: 34
    Download took 190ms, 15 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563e908004-0000003d-0001-01, block count: 29
    Download took 236ms, 19 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563e908004-0000003a-0001-01, block count: 36
    Concurrent Download took 237ms
    Download took 269ms, 14 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563e908004-0000003f-0001-01, block count: 27
    Download took 626ms, 16 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563e908004-0000003e-0001-01, block count: 32
    Download took 731ms, 154 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563fe20004-00000039-0001-01, block count: 282
    Download took 778ms, 157 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563fe20004-0000003a-0001-01, block count: 290
    Download took 798ms, 142 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563fe20004-00000038-0001-01, block count: 269
    Concurrent Download took 799ms
    Download took 742ms, 155 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563fe20004-0000003b-0001-01, block count: 285
    Download took 2020ms, 133 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563fe20004-0000003f-0001-01, block count: 254
    Download took 2203ms, 150 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563fe20004-0000003d-0001-01, block count: 279
    Download took 2222ms, 156 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563fe20004-0000003c-0001-01, block count: 288
    Download took 2280ms, 150 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563fe20004-0000003e-0001-01, block count: 281
    Concurrent Download took 2282ms
    Download took 1349ms, 190 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5641338004-0000003c-0001-01, block count: 347
    Download took 1393ms, 169 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5641338004-00000038-0001-01, block count: 325
    Download took 1406ms, 184 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5641338004-0000003b-0001-01, block count: 342
    Download took 1561ms, 188 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5641338004-0000003a-0001-01, block count: 346
    Download took 1736ms, 186 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5641338004-00000039-0001-01, block count: 340
    Concurrent Download took 1737ms
    Download took 365ms, 149 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5642850004-00000038-0001-01, block count: 284
    Download took 366ms, 153 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5642850004-00000039-0001-01, block count: 282
    Download took 1865ms, 163 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5641338004-0000003f-0001-01, block count: 309
    Download took 2710ms, 182 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5641338004-0000003e-0001-01, block count: 342
    Download took 2826ms, 178 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5641338004-0000003d-0001-01, block count: 330
    Concurrent Download took 2826ms
    Download took 504ms, 150 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5642850004-0000003e-0001-01, block count: 285
    Download took 525ms, 163 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5642850004-0000003c-0001-01, block count: 299
    Download took 722ms, 156 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5642850004-0000003d-0001-01, block count: 291
    Download took 1107ms, 157 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5642850004-0000003b-0001-01, block count: 292
    Download took 1143ms, 159 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5642850004-0000003a-0001-01, block count: 297
    Concurrent Download took 1143ms
    Download took 534ms, 103 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5643d68004-00000039-0001-01, block count: 189
    Download took 537ms, 93 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5643d68004-00000038-0001-01, block count: 177
    Download took 560ms, 103 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5643d68004-0000003b-0001-01, block count: 192
    Download took 565ms, 105 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5643d68004-0000003a-0001-01, block count: 194
    Download took 582ms, 132 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5642850004-0000003f-0001-01, block count: 254
    Concurrent Download took 583ms
    Download took 457ms, 100 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5643d68004-0000003e-0001-01, block count: 190
    Download took 459ms, 90 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5643d68004-0000003f-0001-01, block count: 174
    Download took 765ms, 103 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5643d68004-0000003d-0001-01, block count: 191
    Download took 1029ms, 162 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5645280004-00000038-0001-01, block count: 309
    Download took 1150ms, 107 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5643d68004-0000003c-0001-01, block count: 196
    Concurrent Download took 1150ms
    Download took 1287ms, 184 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5645280004-0000003c-0001-01, block count: 338
    Download took 1323ms, 174 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5645280004-00000039-0001-01, block count: 322
    Download took 1414ms, 180 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5645280004-0000003a-0001-01, block count: 337
    Download took 1380ms, 177 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5645280004-0000003d-0001-01, block count: 329
    Download took 1600ms, 176 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5645280004-0000003b-0001-01, block count: 328
    Concurrent Download took 1635ms
    Download took 1027ms, 141 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5646798004-00000039-0001-01, block count: 261
    Download took 1165ms, 169 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5645280004-0000003e-0001-01, block count: 323
    Download took 1263ms, 150 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5645280004-0000003f-0001-01, block count: 287
    Download took 2255ms, 147 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5646798004-0000003a-0001-01, block count: 272
    Download took 3046ms, 136 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5646798004-00000038-0001-01, block count: 260
    Concurrent Download took 3047ms
    Download took 1351ms, 139 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5646798004-0000003e-0001-01, block count: 263
    Download took 1649ms, 143 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5646798004-0000003b-0001-01, block count: 267
    Download took 2442ms, 123 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5646798004-0000003f-0001-01, block count: 237
    Download took 2707ms, 146 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5646798004-0000003c-0001-01, block count: 272
    Download took 3057ms, 142 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5646798004-0000003d-0001-01, block count: 268
    Concurrent Download took 3058ms
    Download took 211ms, 13 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5647cb0004-0000003b-0001-01, block count: 25
    Download took 240ms, 12 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5647cb0004-00000039-0001-01, block count: 23
    Download took 248ms, 15 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5647cb0004-0000003a-0001-01, block count: 28
    Download took 264ms, 15 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5647cb0004-0000003c-0001-01, block count: 29
    Download took 516ms, 13 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5647cb0004-00000038-0001-01, block count: 26
    Concurrent Download took 517ms
    Download took 123ms, 15 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5647cb0004-0000003d-0001-01, block count: 28
    Download took 241ms, 13 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5647cb0004-0000003f-0001-01, block count: 26
    Download took 308ms, 14 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5647cb0004-0000003e-0001-01, block count: 27
    Download took 1651ms, 117 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/56491c8004-00000039-0001-01, block count: 215
    Download took 2275ms, 115 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/56491c8004-00000038-0001-01, block count: 218
    Concurrent Download took 2280ms
    Download took 2106ms, 121 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/56491c8004-0000003e-0001-01, block count: 228
    Download took 2464ms, 129 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/56491c8004-0000003c-0001-01, block count: 240
    Download took 3126ms, 123 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/56491c8004-0000003b-0001-01, block count: 229
    Download took 3157ms, 125 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/56491c8004-0000003d-0001-01, block count: 231
    Download took 3289ms, 126 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/56491c8004-0000003a-0001-01, block count: 234
    Concurrent Download took 3291ms
    Download took 3477ms, 180 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/564a6e0004-00000039-0001-01, block count: 333
    Download took 4024ms, 173 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/564a6e0004-00000038-0001-01, block count: 328
    Download took 4391ms, 105 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/56491c8004-0000003f-0001-01, block count: 203
    Download took 4856ms, 186 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/564a6e0004-0000003a-0001-01, block count: 344
    Download took 4869ms, 187 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/564a6e0004-0000003b-0001-01, block count: 345
    Concurrent Download took 4906ms
    Download took 1831ms, 85 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/564bbf8004-00000038-0001-01, block count: 162
    Download took 3977ms, 182 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/564a6e0004-0000003e-0001-01, block count: 340
    Download took 3980ms, 189 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/564a6e0004-0000003c-0001-01, block count: 349
    Download took 4240ms, 163 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/564a6e0004-0000003f-0001-01, block count: 309
    Download took 4808ms, 184 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/564a6e0004-0000003d-0001-01, block count: 341
    Concurrent Download took 4812ms
    Download took 1461ms, 88 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/564bbf8004-00000039-0001-01, block count: 163
    Download took 1463ms, 92 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/564bbf8004-0000003b-0001-01, block count: 170
    Download took 1555ms, 91 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/564bbf8004-0000003d-0001-01, block count: 170
    Download took 1574ms, 96 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/564bbf8004-0000003c-0001-01, block count: 177
    Download took 2414ms, 94 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/564bbf8004-0000003a-0001-01, block count: 174
    Concurrent Download took 2418ms
    Download took 3414ms, 75 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/564bbf8004-0000003f-0001-01, block count: 145
    Download took 3795ms, 136 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/564d110004-00000038-0001-01, block count: 256
    Download took 4422ms, 89 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/564bbf8004-0000003e-0001-01, block count: 165
    Download took 4644ms, 145 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/564d110004-00000039-0001-01, block count: 268
    Download took 5782ms, 147 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/564d110004-0000003a-0001-01, block count: 273
    Concurrent Download took 5789ms
    Download took 2758ms, 143 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/564d110004-0000003b-0001-01, block count: 269
    Download took 2862ms, 132 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/564d110004-0000003f-0001-01, block count: 253
    Download took 4094ms, 146 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/564d110004-0000003d-0001-01, block count: 270
    Download took 4662ms, 145 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/564d110004-0000003e-0001-01, block count: 271
    Download took 4759ms, 150 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/564d110004-0000003c-0001-01, block count: 275
    Concurrent Download took 4762ms
    Download took 831ms, 78 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/564e628004-0000003b-0001-01, block count: 146
    Download took 1146ms, 82 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/564e628004-0000003c-0001-01, block count: 154
    Download took 1511ms, 83 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/564e628004-0000003a-0001-01, block count: 156
    Download took 1926ms, 76 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/564e628004-00000039-0001-01, block count: 143
    Download took 1949ms, 75 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/564e628004-00000038-0001-01, block count: 144
    Concurrent Download took 1953ms
    Download took 1483ms, 77 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/564e628004-0000003e-0001-01, block count: 146
    Download took 1702ms, 78 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/564e628004-0000003d-0001-01, block count: 149
    Download took 1711ms, 68 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/564e628004-0000003f-0001-01, block count: 132
    Concurrent Download took 1715ms
    Download of 128 blobs complete
    
    And here is the same test run in reverse order:
    Blob order being reversed to most recently created blobs first
    Blob File Dump Reversed 11-20-2015 6-33-31 PM
    Download took 1111ms, 82 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/564e628004-0000003c-0001-01, block count: 154
    Download took 1417ms, 68 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/564e628004-0000003f-0001-01, block count: 132
    Download took 1470ms, 77 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/564e628004-0000003e-0001-01, block count: 146
    Download took 1713ms, 78 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/564e628004-0000003b-0001-01, block count: 146
    Download took 2175ms, 78 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/564e628004-0000003d-0001-01, block count: 149
    Concurrent Download took 2193ms
    Download took 1612ms, 75 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/564e628004-00000038-0001-01, block count: 144
    Download took 1614ms, 76 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/564e628004-00000039-0001-01, block count: 143
    Download took 3291ms, 83 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/564e628004-0000003a-0001-01, block count: 156
    Download took 3335ms, 132 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/564d110004-0000003f-0001-01, block count: 253
    Download took 3741ms, 145 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/564d110004-0000003e-0001-01, block count: 271
    Concurrent Download took 3743ms
    Download took 3545ms, 143 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/564d110004-0000003b-0001-01, block count: 269
    Download took 3575ms, 150 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/564d110004-0000003c-0001-01, block count: 275
    Download took 3713ms, 145 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/564d110004-00000039-0001-01, block count: 268
    Download took 3933ms, 146 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/564d110004-0000003d-0001-01, block count: 270
    Download took 4354ms, 147 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/564d110004-0000003a-0001-01, block count: 273
    Concurrent Download took 4355ms
    Download took 1201ms, 75 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/564bbf8004-0000003f-0001-01, block count: 145
    Download took 2125ms, 96 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/564bbf8004-0000003c-0001-01, block count: 177
    Download took 3277ms, 136 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/564d110004-00000038-0001-01, block count: 256
    Download took 3658ms, 91 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/564bbf8004-0000003d-0001-01, block count: 170
    Download took 3973ms, 89 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/564bbf8004-0000003e-0001-01, block count: 165
    Concurrent Download took 3974ms
    Download took 1299ms, 88 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/564bbf8004-00000039-0001-01, block count: 163
    Download took 2473ms, 92 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/564bbf8004-0000003b-0001-01, block count: 170
    Download took 3114ms, 85 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/564bbf8004-00000038-0001-01, block count: 162
    Download took 3289ms, 94 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/564bbf8004-0000003a-0001-01, block count: 174
    Download took 3416ms, 163 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/564a6e0004-0000003f-0001-01, block count: 309
    Concurrent Download took 3447ms
    Download took 3848ms, 182 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/564a6e0004-0000003e-0001-01, block count: 340
    Download took 4970ms, 187 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/564a6e0004-0000003b-0001-01, block count: 345
    Download took 5324ms, 184 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/564a6e0004-0000003d-0001-01, block count: 341
    Download took 5767ms, 189 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/564a6e0004-0000003c-0001-01, block count: 349
    Download took 5938ms, 186 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/564a6e0004-0000003a-0001-01, block count: 344
    Concurrent Download took 5940ms
    Download took 4558ms, 105 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/56491c8004-0000003f-0001-01, block count: 203
    Download took 4928ms, 125 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/56491c8004-0000003d-0001-01, block count: 231
    Download took 5122ms, 121 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/56491c8004-0000003e-0001-01, block count: 228
    Download took 5273ms, 173 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/564a6e0004-00000038-0001-01, block count: 328
    Download took 5639ms, 180 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/564a6e0004-00000039-0001-01, block count: 333
    Concurrent Download took 5640ms
    Download took 3129ms, 117 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/56491c8004-00000039-0001-01, block count: 215
    Download took 3177ms, 123 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/56491c8004-0000003b-0001-01, block count: 229
    Download took 3186ms, 126 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/56491c8004-0000003a-0001-01, block count: 234
    Download took 3231ms, 115 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/56491c8004-00000038-0001-01, block count: 218
    Download took 3308ms, 129 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/56491c8004-0000003c-0001-01, block count: 240
    Concurrent Download took 3309ms
    Download took 257ms, 14 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5647cb0004-0000003e-0001-01, block count: 27
    Download took 339ms, 13 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5647cb0004-0000003b-0001-01, block count: 25
    Download took 354ms, 15 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5647cb0004-0000003c-0001-01, block count: 29
    Download took 412ms, 13 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5647cb0004-0000003f-0001-01, block count: 26
    Download took 498ms, 15 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5647cb0004-0000003d-0001-01, block count: 28
    Concurrent Download took 499ms
    Download took 105ms, 13 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5647cb0004-00000038-0001-01, block count: 26
    Download took 122ms, 15 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5647cb0004-0000003a-0001-01, block count: 28
    Download took 131ms, 12 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5647cb0004-00000039-0001-01, block count: 23
    Download took 1332ms, 139 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5646798004-0000003e-0001-01, block count: 263
    Download took 1392ms, 123 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5646798004-0000003f-0001-01, block count: 237
    Concurrent Download took 1393ms
    Download took 1876ms, 141 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5646798004-00000039-0001-01, block count: 261
    Download took 1892ms, 147 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5646798004-0000003a-0001-01, block count: 272
    Download took 2241ms, 146 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5646798004-0000003c-0001-01, block count: 272
    Download took 2374ms, 142 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5646798004-0000003d-0001-01, block count: 268
    Download took 2381ms, 143 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5646798004-0000003b-0001-01, block count: 267
    Concurrent Download took 2387ms
    Download took 936ms, 136 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5646798004-00000038-0001-01, block count: 260
    Download took 1022ms, 177 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5645280004-0000003d-0001-01, block count: 329
    Download took 1415ms, 184 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5645280004-0000003c-0001-01, block count: 338
    Download took 1665ms, 169 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5645280004-0000003e-0001-01, block count: 323
    Download took 1776ms, 150 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5645280004-0000003f-0001-01, block count: 287
    Concurrent Download took 1776ms
    Download took 704ms, 90 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5643d68004-0000003f-0001-01, block count: 174
    Download took 1170ms, 174 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5645280004-00000039-0001-01, block count: 322
    Download took 1204ms, 162 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5645280004-00000038-0001-01, block count: 309
    Download took 1421ms, 176 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5645280004-0000003b-0001-01, block count: 328
    Download took 1729ms, 180 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5645280004-0000003a-0001-01, block count: 337
    Concurrent Download took 1730ms
    Download took 635ms, 100 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5643d68004-0000003e-0001-01, block count: 190
    Download took 721ms, 103 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5643d68004-0000003b-0001-01, block count: 192
    Download took 723ms, 107 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5643d68004-0000003c-0001-01, block count: 196
    Download took 758ms, 105 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5643d68004-0000003a-0001-01, block count: 194
    Download took 835ms, 103 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5643d68004-0000003d-0001-01, block count: 191
    Concurrent Download took 836ms
    Download took 532ms, 93 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5643d68004-00000038-0001-01, block count: 177
    Download took 571ms, 103 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5643d68004-00000039-0001-01, block count: 189
    Download took 766ms, 132 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5642850004-0000003f-0001-01, block count: 254
    Download took 818ms, 156 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5642850004-0000003d-0001-01, block count: 291
    Download took 823ms, 150 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5642850004-0000003e-0001-01, block count: 285
    Concurrent Download took 824ms
    Download took 678ms, 149 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5642850004-00000038-0001-01, block count: 284
    Download took 683ms, 159 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5642850004-0000003a-0001-01, block count: 297
    Download took 682ms, 153 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5642850004-00000039-0001-01, block count: 282
    Download took 698ms, 157 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5642850004-0000003b-0001-01, block count: 292
    Download took 884ms, 163 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5642850004-0000003c-0001-01, block count: 299
    Concurrent Download took 888ms
    Download took 1158ms, 163 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5641338004-0000003f-0001-01, block count: 309
    Download took 1313ms, 190 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5641338004-0000003c-0001-01, block count: 347
    Download took 1316ms, 184 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5641338004-0000003b-0001-01, block count: 342
    Download took 1325ms, 178 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5641338004-0000003d-0001-01, block count: 330
    Download took 1362ms, 182 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5641338004-0000003e-0001-01, block count: 342
    Concurrent Download took 1365ms
    Download took 647ms, 133 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563fe20004-0000003f-0001-01, block count: 254
    Download took 718ms, 150 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563fe20004-0000003e-0001-01, block count: 281
    Download took 811ms, 169 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5641338004-00000038-0001-01, block count: 325
    Download took 830ms, 186 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5641338004-00000039-0001-01, block count: 340
    Download took 2679ms, 188 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/5641338004-0000003a-0001-01, block count: 346
    Concurrent Download took 2682ms
    Download took 891ms, 156 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563fe20004-0000003c-0001-01, block count: 288
    Download took 893ms, 150 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563fe20004-0000003d-0001-01, block count: 279
    Download took 898ms, 157 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563fe20004-0000003a-0001-01, block count: 290
    Download took 964ms, 154 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563fe20004-00000039-0001-01, block count: 282
    Download took 1337ms, 155 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563fe20004-0000003b-0001-01, block count: 285
    Concurrent Download took 1341ms
    Download took 130ms, 15 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563e908004-0000003d-0001-01, block count: 29
    Download took 139ms, 14 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563e908004-0000003f-0001-01, block count: 27
    Download took 146ms, 18 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563e908004-0000003c-0001-01, block count: 35
    Download took 260ms, 16 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563e908004-0000003e-0001-01, block count: 32
    Download took 361ms, 142 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563fe20004-00000038-0001-01, block count: 269
    Concurrent Download took 364ms
    Download took 97ms, 17 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563e908004-00000038-0001-01, block count: 33
    Download took 107ms, 14 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563e908004-00000039-0001-01, block count: 27
    Download took 120ms, 18 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563e908004-0000003b-0001-01, block count: 34
    Download took 132ms, 19 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563e908004-0000003a-0001-01, block count: 36
    Download took 426ms, 159 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563d3f0004-0000003f-0001-01, block count: 305
    Concurrent Download took 430ms
    Download took 1319ms, 182 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563d3f0004-0000003b-0001-01, block count: 337
    Download took 1325ms, 185 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563d3f0004-0000003c-0001-01, block count: 341
    Download took 1329ms, 176 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563d3f0004-0000003d-0001-01, block count: 331
    Download took 1334ms, 175 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563d3f0004-0000003e-0001-01, block count: 328
    Download took 1395ms, 190 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563d3f0004-0000003a-0001-01, block count: 349
    Concurrent Download took 1401ms
    Download took 1093ms, 132 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563bed8004-0000003f-0001-01, block count: 252
    Download took 1171ms, 165 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563d3f0004-00000038-0001-01, block count: 316
    Download took 1172ms, 150 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563bed8004-0000003e-0001-01, block count: 284
    Download took 1203ms, 178 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563d3f0004-00000039-0001-01, block count: 326
    Download took 1201ms, 160 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563bed8004-0000003d-0001-01, block count: 294
    Concurrent Download took 1207ms
    Download took 1115ms, 141 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563bed8004-00000038-0001-01, block count: 269
    Download took 1188ms, 161 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563bed8004-0000003c-0001-01, block count: 297
    Download took 1203ms, 162 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563bed8004-0000003a-0001-01, block count: 298
    Download took 1207ms, 157 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563bed8004-0000003b-0001-01, block count: 291
    Download took 1210ms, 156 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563bed8004-00000039-0001-01, block count: 286
    Concurrent Download took 1217ms
    Download took 1046ms, 126 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563a9c0004-0000003c-0001-01, block count: 234
    Download took 1085ms, 103 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563a9c0004-0000003f-0001-01, block count: 201
    Download took 1135ms, 122 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563a9c0004-0000003d-0001-01, block count: 230
    Download took 1146ms, 123 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563a9c0004-0000003e-0001-01, block count: 233
    Download took 1426ms, 126 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563a9c0004-0000003b-0001-01, block count: 236
    Concurrent Download took 1433ms
    Download took 727ms, 112 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563a9c0004-00000038-0001-01, block count: 216
    Download took 760ms, 121 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563a9c0004-00000039-0001-01, block count: 226
    Download took 765ms, 127 Kb for https://myteststore.blob.core.windows.net/main-testcontainer1/vib_su-vh-11/563a9c0004-0000003a-0001-01, block count: 236
    Concurrent Download took 768ms
    Download of 128 blobs complete
    

    Saturday, November 21, 2015 6:14 PM

All replies

  • Hello,

     

    We are researching on the query and would get back to you soon on this. I apologize for the inconvenience and appreciate your time and patience in this matter.

     

    Best Regards,

    Kamalakar K

    Sunday, November 22, 2015 11:28 AM
  • Hello Kamalakar,

    here is the output from Fiddler for one of the long requests (~7 seconds). It appears all the time is being taken by the server, unless I'm misinterpreting the results.

    Request Count:   1
    Bytes Sent:      466		(headers:466; body:0)
    Bytes Received:  149,138		(headers:474; body:148,664)
    
    ACTUAL PERFORMANCE
    --------------
    ClientConnected:	09:44:38.832
    ClientBeginRequest:	09:45:11.952
    GotRequestHeaders:	09:45:11.952
    ClientDoneRequest:	09:45:11.952
    Determine Gateway:	0ms
    DNS Lookup: 		0ms
    TCP/IP Connect:	0ms
    HTTPS Handshake:	0ms
    ServerConnected:	09:44:38.832
    FiddlerBeginRequest:	09:45:11.952
    ServerGotRequest:	09:45:11.952
    ServerBeginResponse:	09:45:12.280
    GotResponseHeaders:	09:45:12.280
    ServerDoneResponse:	09:45:19.283
    ClientBeginResponse:	09:45:19.283
    ClientDoneResponse:	09:45:19.283
    
    	Overall Elapsed:	0:00:07.331
    
    RESPONSE BYTES (by Content-Type)
    --------------
    application/octet-stream: 148,664
                   ~headers~: 474

    and here are the response headers:

    HTTP/1.1 200 OK
    Content-Length: 148664
    Content-Type: application/octet-stream
    Last-Modified: Thu, 19 Nov 2015 21:21:33 GMT
    Accept-Ranges: bytes
    ETag: "0x8D2F127665C8B68"
    Server: Windows-Azure-Blob/1.0 Microsoft-HTTPAPI/2.0
    x-ms-request-id: eb850251-0001-002f-1c65-27a1c3000000
    x-ms-version: 2015-04-05
    x-ms-lease-status: unlocked
    x-ms-lease-state: available
    x-ms-blob-type: AppendBlob
    x-ms-blob-committed-block-count: 271
    Date: Wed, 25 Nov 2015 09:45:11 GMT
    

    The blob in question is being written to over the period of a day, could the data be getting very fragmented server side?

    Many Thanks, 

    Roger

    Wednesday, November 25, 2015 10:17 AM