Performance optimisation for i9 with 64GB RAM and 2x2TB NVME

Chia Plotting
1

I’m going well scaling horizontally (more machines) but having trouble scaling vertically on my highest performance machine, which is an i9 9900kf with 64GB of RAM and 2x 2TB NVME SSD drives.

It seems to be taking doing about 1 plot per hour (massively parallelised) ie about 2.5 tb / day, but I think (from seeing other’s outputs?) that it should be able to do more.

My question is, am I pushing this machine too hard? Would I likely get better performance by reducing the number of plots in P1?

Many thanks in advance for any suggestions :slight_smile:

Here is the output from plotman:

 plot id    k            tmp        dst   wall   phase    tmp      pid   stat      mem    user    sys     io
61bcb49b   32   /plots_tmp/0   /plots/1   0:04     1:2    44G   160409    SLP     7.6G    0:06    48s     0s
bfd04b47   32   /plots_tmp/1   /plots/2   2:09     1:5   174G   155224    SLP     7.6G    3:29   0:09     2s
99980f85   32   /plots_tmp/0   /plots/0   2:35     1:6   179G   153857    SLP     7.6G    4:11   0:11     4s
bc581f0d   32   /plots_tmp/1   /plots/1   3:06     1:7   175G   152354    SLP     7.4G    5:04   0:13     8s
bbb2c878   32   /plots_tmp/0   /plots/2   3:33     2:1   169G   150991    RUN     1.6G    5:38   0:15    45s
d5d24ae0   32   /plots_tmp/1   /plots/0   5:38     3:1   240G   146111    RUN     8.0G    7:34   0:19   0:03
16daaaf9   32   /plots_tmp/0   /plots/1   6:02     3:2   218G   144892    RUN     7.4G    7:56   0:21   0:04
770469b3   32   /plots_tmp/1   /plots/2   6:35     3:3   204G   143300    RUN     7.4G    8:23   0:23   0:06
c58f9f23   32   /plots_tmp/0   /plots/0   6:59     3:3   186G   142055    RUN     7.4G    8:46   0:24   0:07
cafc7bd3   32   /plots_tmp/1   /plots/2   9:06     3:6   169G   137030    RUN     7.4G   10:35   0:31   0:14
8852f5c3   32   /plots_tmp/0   /plots/1   9:26     4:0   109G   135970    RUN   555.6M   10:51   0:33   0:15

My plotman settings are:

   tmpdir_stagger_phase_major: 2
   tmpdir_stagger_phase_minor: 1
   tmpdir_stagger_phase_limit: 2
    tmpdir_max_jobs: 12
        global_max_jobs: 20
        global_stagger_m: 10

plotting:
        k: 32
        e: False            
        n_threads: 6     
        n_buckets: 128  
        job_buffer: 6500
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