Submitted by Infamous_Age_7731 t3_107pcux in deeplearning
Infamous_Age_7731 OP t1_j3qy6qv wrote
Reply to comment by ivan_kudryavtsev in Cloud VM GPU is much slower than my local GPU by Infamous_Age_7731
> multithreaded
>
>sysbench
>
> to compare CPU and RAM
Thanks a lot for your input! I checked the CPU %steal it seems optimal ranging from 0.0 to 0.1st. Then, I don't think it's a shard since in the NVIDIA I have the full 80Gb memory at my disposal (unless they do some trickeries). I did a series of `sysbench tests and I found out that the VM's CPU is slightly worse for single-thread performance, but what is more astounding is the RAM speed. For 1 or 8 threads the write is 0.8x slower and the read is 1.5x slower. The Ram speed drop seems to reflect the iteration per second speed drop when I train the model. I guess this might be the fault.
qiltb t1_j3rtytt wrote
that doesn't sound weird to me though, servers use much slower ecc ram probably....
Infamous_Age_7731 OP t1_j3rwt7o wrote
I see, so this shouldn't be causing the issue you reckon.
ivan_kudryavtsev t1_j4c5702 wrote
Ram performance also may be affected by meltdown, spectre patches.
Viewing a single comment thread. View all comments