Problem with dual xeon E5-2630 V3

[urgerone]

Hello,

I am trying xmr-stak on a HP DL360 G9 server with 2xE5-2630 V3 CPUs, but the performance from both CPUs is completely different.

CPU1 give 480H/s

CPU2 give 200H/s

Here is my CPU.txt

"cpu_threads_conf" :
[
{ "low_power_mode" : false, "no_prefetch" : true, "affine_to_cpu" : 0 },
{ "low_power_mode" : false, "no_prefetch" : true, "affine_to_cpu" : 2 },
{ "low_power_mode" : false, "no_prefetch" : true, "affine_to_cpu" : 4 },
{ "low_power_mode" : false, "no_prefetch" : true, "affine_to_cpu" : 6 },
{ "low_power_mode" : false, "no_prefetch" : true, "affine_to_cpu" : 8 },
{ "low_power_mode" : false, "no_prefetch" : true, "affine_to_cpu" : 10 },
{ "low_power_mode" : false, "no_prefetch" : true, "affine_to_cpu" : 12 },
{ "low_power_mode" : false, "no_prefetch" : true, "affine_to_cpu" : 14 },
{ "low_power_mode" : false, "no_prefetch" : true, "affine_to_cpu" : 13 },
{ "low_power_mode" : false, "no_prefetch" : true, "affine_to_cpu" : 15 },
{ "low_power_mode" : false, "no_prefetch" : true, "affine_to_cpu" : 17 },
{ "low_power_mode" : false, "no_prefetch" : true, "affine_to_cpu" : 19 },
{ "low_power_mode" : false, "no_prefetch" : true, "affine_to_cpu" : 21 },
{ "low_power_mode" : false, "no_prefetch" : true, "affine_to_cpu" : 23 },
{ "low_power_mode" : false, "no_prefetch" : true, "affine_to_cpu" : 25 },
{ "low_power_mode" : false, "no_prefetch" : true, "affine_to_cpu" : 27 },
{ "low_power_mode" : false, "no_prefetch" : true, "affine_to_cpu" : 29 },
{ "low_power_mode" : false, "no_prefetch" : true, "affine_to_cpu" : 31 },
{ "low_power_mode" : false, "no_prefetch" : true, "affine_to_cpu" : 28 },
{ "low_power_mode" : false, "no_prefetch" : true, "affine_to_cpu" : 30 },
],

And the hashrate result:

This is running on hyper-V 2012 R2 Host without any virtual machines running.

Any ideas?

[DrStein99]

First try run benchmark only one processor at w time. If consistent, continue to add threads one a time, and testing to see at what point you start losing speed on the same threads.

I do not know anything about that operating system. For me, I have to install both windows and linux on any new machine I test to do.pare hash rates and get a baseline test result, to compare the rest of results to.

[urgerone]

Even running one thread on CPU2 give 22H/s, for example:

{ "low_power_mode" : false, "no_prefetch" : true, "affine_to_cpu" : 27 },

[luc1an24]

@urgerone did you managed to get optimal performance?