Re: [vfs] 662aa027bda: -7.2% will-it-scale.scalability

[Miklos Szeredi]

On Tue, 2014-05-27 at 23:58 +0800, Jet Chen wrote:
> Hi Miklos,
> 
> FYI, we noticed the below changes on
> 
> git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs.git overlayfs.v22
> commit 662aa027bdaa082aa3dd21886830c97a1dd4c184 ("vfs: add RENAME_WHITEOUT")
> 
> test case: lkp-wsx01/will-it-scale/lseek2

The only thing I see in that commit that could affect performance is the
slightly larger icache footprint of ext4_rename().

Is the regression reproducible across different -rc versions?

Thanks,
Miklos

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/