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throughput per watt reality check
#1
Thought I'd post a small recipe because a lot of threads ask similar things.

Maybe useful as a starting point: vLLM on 4090, keeping MoE serving in mind from the start.

If someone wants the exact settings I can clean them up and post them.
team red, team patient
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#2
Quote:Thought I'd post a small recipe because a lot of threads ask similar things.

A couple things I'd check first. If you're on Ollama, I'd confirm the version first and then reduce variables until the behavior is obvious. Not glamorous advice, but repeatable baselines save a lot of time.
mostly local
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#3
A couple things I'd check first. Before rebuilding anything, I'd test one clean baseline with FLUX and compare from there.
mostly local
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#4
Tried to reproduce it just now. The issue went away once I changed one setting and restarted the stack cleanly. The surprise was that memory pressure showed up before throughput collapsed.
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#5
Interesting, I hadn't tried that. I don't think your conclusion is far off.
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#6
Need a little more detail here. What model, what runtime, and roughly what context size?
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#7
My first guess would be this: If you're on vLLM, I'd confirm the version first and then reduce variables until the behavior is obvious. The logs were somehow calmer than I was.
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#8
Quote:My first guess would be this: If you're on vLLM, I'd confirm the version first and then reduce variables until the behavior is obvious. The logs were

Can you fill in a bit more context? What model, what runtime, and roughly what context size?
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#9
Quote:A couple things I'd check first. On 7900 XTX, the easiest win is often to back off the aggressive settings and see whether the problem survives.

A couple things I'd check first. On M3 Max, the easiest win is often to back off the aggressive settings and see whether the problem survives.
post logs or it didn't happen
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#10
That matches what I was seeing. The pattern around continuous batching has been pretty similar for me. I got better results once I stopped chasing one metric and just looked at whether the workflow felt usable.
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