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Cachy: Out of tree Linux scheduler improving CPU cache usage

38 pointsby karma_daemonover 4 years ago

3 comments

rurbanover 4 years ago
His previous attempt on the same policy was <a href="https:&#x2F;&#x2F;github.com&#x2F;hamadmarri&#x2F;popcorn" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;hamadmarri&#x2F;popcorn</a><p>This new one looks simpler and a bit better.
gravypodover 4 years ago
It would be interesting to see how this scales with cores&#x2F;threads. Current gen CPUs have ~128 threads per socket and you can find hardware that is quad socket. I&#x27;ve seen some systems with &lt;512 concurrent processes running. In those use cases would this patch have the effect of pinning each process to a single thread (ignoring io&#x2F;other sleep states)? Would the performance benefits of this patch scale super-linearly against thread count?
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LinuxBenderover 4 years ago
Very nice! I hope this is considered for merge into the kernel as an optional scheduler.