More stable kernels with partial Dirty Frag fixes

[lwn@fedi.lwn.net]

More stable kernels with partial Dirty Frag fixes

https://lwn.net/Articles/1071483/ #LWN #Linux #kernel

[aho@ioc.exchange]

@lwn a bit unrelated, the #postgresql performance degradation in the #Linux #kernel 7, has it been fixed (either postgresql or kernel side)?

[tomasv@fosstodon.org]

@aho @lwn I don't think so, or at least I'm not aware of a fix. But I also think the workload showing the regression is extremely artificial, and you'll not see the regression for anything remotely realistic.

[aho@ioc.exchange]

@tomasv @lwn that's good to hear, as had to upgrade kernel and was a bit worried over a headline I saw some time ago when I didn't really planed on upgrading kernel...

[lwn@fedi.lwn.net]

@aho @tomasv This is the article, "The 7.0 scheduler regression that wasn't".

The tl;dr was that the "regression" happened on a system running PostgreSQL with huge pages disabled. Once the reporter enabled them, the problem disappeared.

https://lwn.net/Articles/1067029/

[aho@ioc.exchange]

@lwn @tomasv thanks