Re: [linus:master] [btrfs] 4ae2edf12d: fio.write_iops -11.9% regression

From: Christoph Hellwig
Date: Fri Apr 14 2023 - 01:25:08 EST


On Fri, Apr 14, 2023 at 10:01:51AM +0800, kernel test robot wrote:
> Hello,
>
> kernel test robot noticed a -11.9% regression of fio.write_iops on:
>
> commit: 4ae2edf12d49fdbaea2dfda0bb2ec06501bd3493 ("btrfs: simplify parameters of btrfs_lookup_bio_sums")
> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master

Can you revalidate this? The patch is purely a parameter passing
cleanup, so a large reduction in IOPS looks very suspicious.