@Riz
E5-2697 v3 have L3 35M , each thread needs 2M , 35M/2 = 17 Threads per CPU.
Dual CPU is 17 x 2 = 34 Threads.
You'll need to reduce number of running threads in config.txt
You may actually see hashrate go up.
This is where it gets strange. I've been messing with these quite a bit trying to tweak with it. If I stop, and run it again, different cores end up being in use.
"cpu_threads_conf" :
[
{ "low_power_mode" : false, "no_prefetch" : true, "affine_to_cpu" : 0 },
{ "low_power_mode" : false, "no_prefetch" : true, "affine_to_cpu" : 1 },
{ "low_power_mode" : false, "no_prefetch" : true, "affine_to_cpu" : 2 },
{ "low_power_mode" : false, "no_prefetch" : true, "affine_to_cpu" : 3 },
{ "low_power_mode" : false, "no_prefetch" : true, "affine_to_cpu" : 4 },
{ "low_power_mode" : false, "no_prefetch" : true, "affine_to_cpu" : 5 },
{ "low_power_mode" : false, "no_prefetch" : true, "affine_to_cpu" : 6 },
{ "low_power_mode" : false, "no_prefetch" : true, "affine_to_cpu" : 7 },
{ "low_power_mode" : false, "no_prefetch" : true, "affine_to_cpu" : 8 },
{ "low_power_mode" : false, "no_prefetch" : true, "affine_to_cpu" : 9 },
{ "low_power_mode" : false, "no_prefetch" : true, "affine_to_cpu" : 10 },
{ "low_power_mode" : false, "no_prefetch" : true, "affine_to_cpu" : 11 },
{ "low_power_mode" : false, "no_prefetch" : true, "affine_to_cpu" : 12 },
{ "low_power_mode" : false, "no_prefetch" : true, "affine_to_cpu" : 13 },
{ "low_power_mode" : false, "no_prefetch" : true, "affine_to_cpu" : 14 },
{ "low_power_mode" : false, "no_prefetch" : true, "affine_to_cpu" : 15 },
{ "low_power_mode" : false, "no_prefetch" : true, "affine_to_cpu" : 16 },
{ "low_power_mode" : false, "no_prefetch" : true, "affine_to_cpu" : 17 },
{ "low_power_mode" : false, "no_prefetch" : true, "affine_to_cpu" : 18 },
{ "low_power_mode" : false, "no_prefetch" : true, "affine_to_cpu" : 19 },
{ "low_power_mode" : false, "no_prefetch" : true, "affine_to_cpu" : 20 },
{ "low_power_mode" : false, "no_prefetch" : true, "affine_to_cpu" : 21 },
{ "low_power_mode" : false, "no_prefetch" : true, "affine_to_cpu" : 22 },
{ "low_power_mode" : false, "no_prefetch" : true, "affine_to_cpu" : 23 },
{ "low_power_mode" : false, "no_prefetch" : true, "affine_to_cpu" : 24 },
{ "low_power_mode" : false, "no_prefetch" : true, "affine_to_cpu" : 25 },
{ "low_power_mode" : false, "no_prefetch" : true, "affine_to_cpu" : 26 },
{ "low_power_mode" : false, "no_prefetch" : true, "affine_to_cpu" : 27 },
{ "low_power_mode" : false, "no_prefetch" : true, "affine_to_cpu" : 28 },
{ "low_power_mode" : false, "no_prefetch" : true, "affine_to_cpu" : 29 },
{ "low_power_mode" : false, "no_prefetch" : true, "affine_to_cpu" : 30 },
{ "low_power_mode" : false, "no_prefetch" : true, "affine_to_cpu" : 31 },
{ "low_power_mode" : false, "no_prefetch" : true, "affine_to_cpu" : 32 },
{ "low_power_mode" : false, "no_prefetch" : true, "affine_to_cpu" : 33 },
],
A lot of my cores don't appear to be allocating to mine anything at all (only 3 in use here) -
[2017-09-10 23:09:46] : New block detected.
HASHRATE REPORT
| ID | 2.5s | 60s | 15m | ID | 2.5s | 60s | 15m |
| 0 | (na) | (na) | (na) | 1 | (na) | (na) | (na) |
| 2 | (na) | (na) | (na) | 3 | (na) | (na) | (na) |
| 4 | (na) | (na) | (na) | 5 | (na) | (na) | (na) |
| 6 | (na) | (na) | (na) | 7 | (na) | (na) | (na) |
| 8 | (na) | (na) | (na) | 9 | (na) | (na) | (na) |
| 10 | (na) | (na) | (na) | 11 | 34.7 | (na) | (na) |
| 12 | (na) | (na) | (na) | 13 | 34.7 | (na) | (na) |
| 14 | (na) | (na) | (na) | 15 | (na) | (na) | (na) |
| 16 | (na) | (na) | (na) | 17 | 39.9 | (na) | (na) |
| 18 | (na) | (na) | (na) | 19 | (na) | (na) | (na) |
| 20 | (na) | (na) | (na) | 21 | (na) | (na) | (na) |
| 22 | (na) | (na) | (na) | 23 | (na) | (na) | (na) |
| 24 | (na) | (na) | (na) | 25 | (na) | (na) | (na) |
| 26 | (na) | (na) | (na) | 27 | (na) | (na) | (na) |
| 28 | (na) | (na) | (na) | 29 | (na) | (na) | (na) |
| 30 | (na) | (na) | (na) | 31 | (na) | (na) | (na) |
| 32 | (na) | (na) | (na) | 33 | (na) | (na) | (na) |
-----------------------------------------------------
Totals: (na) (na) (na) H/s
Highest: 0.0 H/s