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More stable kernels with partial Dirty Frag fixes

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

More stable kernels with partial Dirty Frag fixes

Greg Kroah-Hartman has released the 6.1.171, 5.15.205, and 5.10.255 stable kernels, quickly fol [...]

LWN.net
May 8 at 7:51pmWeb
Show threadAho4d ago
@lwn a bit unrelated, the #postgresql performance degradation in the #Linux #kernel 7, has it been fixed (either postgresql or kernel side)?
Show threadTomas Vondra4d ago
@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.
Show threadAho4d ago
@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...
Show threadLWN.net4d ago

@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/

The 7.0 scheduler regression that wasn't

One of the more significant changes in the 7.0 kernel release is to use the lazy-preemption mod [...]

LWN.net
Show threadAho4d ago
@lwn @tomasv thanks