shakedown.social is one of the many independent Mastodon servers you can use to participate in the fediverse.
A community for live music fans with roots in the jam scene. Shakedown Social is run by a team of volunteers (led by @clifff and @sethadam1) and funded by donations.

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#performance

27 posts22 participants1 post today

I always wondered why my 3900X with 64 MB of cache performs so much worse than a 5700X3D with 96 MB of cache. It's only ⅓ more cache, after all.

Well, `lstopo` had the answer. The cache is split into 4 chunks (CCXs), so a single thread only really has 16 MB of cache available.

I actually managed to gain a few FPS through isolating a group of cores that share an L3 cache by manually setting CPU affinity.

1/3

#Hardware#CPU#AMD