From: David Disseldorp <ddiss@suse.de>
To: "Darrick J. Wong" <djwong@kernel.org>
Cc: Dave Chinner <david@fromorbit.com>, fstests@vger.kernel.org
Subject: Re: [PATCH 1/3] more python dependence. was: populate: fix horrible performance due to excessive forking
Date: Thu, 12 Jan 2023 11:24:58 +0100 [thread overview]
Message-ID: <20230112112458.4b024930@echidna.fritz.box> (raw)
In-Reply-To: <Y79pOYhJICghtLgj@magnolia>
Hi Darrick,
On Wed, 11 Jan 2023 17:58:17 -0800, Darrick J. Wong wrote:
> > (removexattr looks like a pain in perl though...)
> >
> > Anyway it's late now, I'll look at the diff tomorrow.
>
> ...or thursday now, since I decided to reply to the online fsck design
> doc review comments, which took most of the workday. I managed to bang
> out a python script (perl doesn't support setxattr!) that cut the xattr
> overhead down to nearly zero.
IIUC we currently only depend on python for the fio perf tests and
btrfs/154 . My preference would be to not see it spread further
(especially if it's just to shave off a little runtime), mostly because
it's a pain for dependency tracking.
Perhaps you could use perl's syscall(SYS_fsetxattr(), ...)? Well, that or
rewrite it again in awk ;-P
Cheers, David
next prev parent reply other threads:[~2023-01-12 10:28 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-10 22:49 [PATCH 0/3] fstests: filesystem population fixes Dave Chinner
2023-01-10 22:49 ` [PATCH 1/3] populate: fix horrible performance due to excessive forking Dave Chinner
2023-01-11 6:02 ` Darrick J. Wong
2023-01-12 1:58 ` Darrick J. Wong
2023-01-12 10:24 ` David Disseldorp [this message]
2023-01-12 17:07 ` [PATCH 1/3] more python dependence. was: " Darrick J. Wong
2023-01-12 20:23 ` David Disseldorp
2023-01-12 20:42 ` Zorro Lang
2023-01-15 18:33 ` Darrick J. Wong
2023-01-10 22:49 ` [PATCH 2/3] populate: ensure btree directories are created reliably Dave Chinner
2023-01-11 5:47 ` Darrick J. Wong
2023-01-12 5:42 ` Gao Xiang
2023-01-10 22:49 ` [PATCH 3/3] xfs/294: performance is unreasonably slow Dave Chinner
2023-01-11 20:29 ` David Disseldorp
2023-01-12 8:39 ` Zorro Lang
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