On Fri, 25 Oct 2024 10:33:20 +0800, Chi Zhiling wrote:
> Recently, we found that the CPU spent a lot of time in
> xfs_alloc_ag_vextent_size when the filesystem has millions of fragmented
> spaces.
>
> The reason is that we conducted much extra searching for extents that
> could not yield a better result, and these searches would cost a lot of
> time when there were millions of extents to search through. Even if we
> get the same result length, we don't switch our choice to the new one,
> so we can definitely terminate the search early.
>
> [...]
Applied to for-next, thanks!
[1/1] xfs: Reduce unnecessary searches when searching for the best extents
commit: 3ef22684038aa577c10972ee9c6a2455f5fac941
Best regards,
--
Carlos Maiolino <cem@xxxxxxxxxx>
