SMB reading slowly RRS feed

  • Question

  • Hello Community,

    we write over smp with 4 threads to a smb server very fast 800 MB/sec.

    We read over smb with 4 threads from the same smb server with a maximum speed of 80 MB/sec.

    Our system has 4 CPUs with each 8 kernels. While reading over smb with four threads, the reading system uses only 1 kernel with a utilization of 100%.

    The tool we used is FIO.exe. It is a tool for testing maximum speed in smb networks.

    About answer I would be happy and kind regards



    Wednesday, November 19, 2014 3:16 PM


  • Hello Murol,

    Thank you for your question. We first need to clarify that your issue is with implementing the SMB protocol.

    This forum handles requests related to Open Specifications documentation issues. Information about Open Specifications can be found at:

    If your question pertains to an Open Specifications document, please mention the document title (e.g. [MS-SMB2]), the relevant section(s), and include a brief description of the issue.

    Best regards,
    Matt Weber | Microsoft Open Specifications Team

    Wednesday, November 19, 2014 3:44 PM