1 Reply Latest reply on Mar 2, 2015 3:47 AM by vince_intel

    82579LM Inconsistent TCP Performance while receiving on Windows 7 Enterprise

    dliu_amanda

      While using iperf to testing TCP performance, we found win7 machines with 82579LM NIC has inconsistent TCP performance result(some time 400mb/s some time 900mb/s, no other results).

      On some machines, we fixed this problem by disable "interrupt moderation" to "high", problem fixed-> consistent TCP perf test result.

      On some machines, non of our efforts have any effects: disable tcp offload etc.

       

      Both OS and NIC driver are update to the latest.

       

      Anyone saw this issue?