On 09.04.22 19:12, Bruno Damasceno Freire wrote: > On 08.04.22 04:50, Thorsten Leemhuis wrote: >> First off: David, Filipe, many thx for your answers, that helped me a >> lot to get a better picture of the situation! >> On 08.04.22 17:55, Filipe Manana wrote: >>> On Fri, Apr 08, 2022 at 04:52:22PM +0200, David Sterba wrote: >>>> On Fri, Apr 08, 2022 at 12:32:20PM +0200, Thorsten Leemhuis wrote: > >>> [...] >> >>> 6) In short, it is not known what causes the excessive evictions on 5.15 >>> on his machine for that specific workload - we don't have a commit to >>> point at and say it caused a regression. [...] >> >> Bruno, under these circumstances I'd say you need to bisect this to get >> us closer to the root of the problem (and a fix for it). Sadly that how >> it is sometimes, as briefly explained here: >> >> https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/tree/Documentation/admin-guide/reporting-regressions.rst#n140 > > Ok Thorsten. > > It's not sad at all: I had a great time researching this regression and > gained a lot of knowledge while doing so. The problem is that I am just a > simple user at its limits here and additional bisection is probably beyond my > abilities. Maybe, but I think you underestimate yourself here. Give it a try, it's not that hard once you figured out how to build and install a vanilla kernel (which you did already afaics; and if not: it's not that hard and you learn new stuff, too) and have some test case to check if the problem is there or now (which you already have afaics). Ciao, Thorsten
