More puma tuning #24781
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More puma tuning #24781
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- Use nakayoshi_fork to reduce copy-on-write memory usage - Adjust jemalloc tuning parameters for lower memory usage - reduce threads per worker to 5 - Use Puma fork for more stable request balancing and out-of-band GC
sureshc
approved these changes
Sep 13, 2018
Hamms
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Mar 21, 2023
…ly are using Turns out, #24781 added some not-unicorn-specific uses of gctools, which means we probably are actually using it and don't want to merge this branch. Doing so in this commit anyway just to see
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This set of tuning changes brings Puma's performance and memory-usage even with Unicorn on our production workload.
nakayoshi_forkto reduce copy-on-write memory usageforkfor more stable request balancing and out-of-band GCI tested out these changes on a single production server over the past 12 hours and the average request latency was indistinguishable from other Unicorn-based frontends, while the memory usage was equal or slightly better.
This PR still does not change the
cdo-appsChef attributes to usepumaby default, that will be done in a separate PR.