5x increase cpu usage of uv__async_io.part.1 in v14.19.0 vs v14.18.3 #42027
Labels
libuv
Issues and PRs related to the libuv dependency or the uv binding.
performance
Issues and PRs related to the performance of Node.js.
Version
v14.19.0
Platform
Linux 5.13.0-28-generic #31~20.04.1-Ubuntu SMP Wed Jan 19 14:08:10 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux
Subsystem
libuv
What steps will reproduce the bug?
I have taken a flamegraph (https://www.brendangregg.com/flamegraphs.html) of my server code running under full load. Not sure if i could provide an example that triggers the same behaviour.
How often does it reproduce? Is there a required condition?
No response
What is the expected behavior?
node v12.18.3
What do you see instead?
node v14.19.0
which is almost a 5x cpu usage increase vs the previous v14 version
Additional information
The only commit between those 2 versions that could impact libuv is this one #40631
which adds
-fno-strict-aliasing
flag to libuvThe text was updated successfully, but these errors were encountered: