mikemccand commented on issue #15662: URL: https://github.com/apache/lucene/issues/15662#issuecomment-3842888561
> Please also keep in mind that GC activity in the search went up dramatically: https://benchmarks.mikemccandless.com/search_gc_jit.html Hmm -- that's actually JIT (hotspot C2 compiler) time not GC I think? Why is kernel upgrade causing more JIT! > > to downgrade the linux kernel to the state before and rerun the bench. > > I agree, seeing how it literally impacts EVERYTHING is very concerning. I will continue to pause on the 10.4 release until we determine if its the kernel or not. Oh, thanks @benwtrent -- I'll try to get to the bottom of this soon. I found some `perf stat` differences which were spooky -- I'll post those next. The problem is, it's not just the kernel -- I did a whole system update `sudo pacman -Syu` (unfortunately!) in that window of 6 no-benchmark-run days. But I think I should be able to boot back to old kernel (while still running all the new packages, including the JDK 25 bugfix upgrade)? Then we could separate kernel vs everything else. I'll kick that off tonite (soonish). -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
