none
Verifier Overhead RRS feed

  • Question

  • Hi,
    I have an HID Device stack who composed of a busDriver which expose multiple HID stacks (filter driver which do nothing +mshidkmdf sys).
    The Bus_driver completes the HID READ_Requests.
    When using verifier on WDF1000.sys I have a performance issue.
    I measured the time that the read completion takes with and without verifier and difference was around 1m.
    Without verifier enabled each completion took 300 micro second and with enabled verifier it took 1300 micro second.
    What could be the problem? How can I solve it?

    Thanks, C.S

     
    Tuesday, May 24, 2016 9:34 PM

Answers

  • verifier has overhead, it is significant and not transparent. there is no solving it, it is just the cost of additional verification

    d -- This posting is provided "AS IS" with no warranties, and confers no rights.

    Wednesday, June 8, 2016 5:36 PM

All replies

  • Could someone advise here?
    Tuesday, June 7, 2016 5:41 PM
  • verifier has overhead, it is significant and not transparent. there is no solving it, it is just the cost of additional verification

    d -- This posting is provided "AS IS" with no warranties, and confers no rights.

    Wednesday, June 8, 2016 5:36 PM