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From: Omar Sandoval <osandov@osandov.com>
To: Christian Brauner <brauner@kernel.org>
Cc: kernel-team@fb.com, linux-kernel@vger.kernel.org,
	linux-fsdevel@vger.kernel.org, Al Viro <viro@zeniv.linux.org.uk>
Subject: Re: [PATCH 0/4] proc/kcore: performance optimizations
Date: Mon, 11 Nov 2024 10:08:39 -0800	[thread overview]
Message-ID: <ZzJIJ4QFNj_KPPHK@telecaster> (raw)
In-Reply-To: <20241111-umgebaut-freifahrt-cb0882051b88@brauner>

On Mon, Nov 11, 2024 at 10:00:54AM +0100, Christian Brauner wrote:
> On Fri, 08 Nov 2024 17:28:38 -0800, Omar Sandoval wrote:
> > From: Omar Sandoval <osandov@fb.com>
> > 
> > Hi,
> > 
> > The performance of /proc/kcore reads has been showing up as a bottleneck
> > for drgn. drgn scripts often spend ~25% of their time in the kernel
> > reading from /proc/kcore.
> > 
> > [...]
> 
> A bit too late for v6.13, I think but certainly something we can look at
> for v6.14. And great that your stepping up to maintain it!

Thanks, v6.14 is totally fine!

I have a quick question on logistics. /proc/kcore typically only gets a
handful of patches per cycle, if any, so should we add fsdevel to the
MAINTAINERS entry so I can ask you to queue up patches in the vfs tree
once I've reviewed them? Or should I send pull requests somewhere?

Thanks,
Omar

  reply	other threads:[~2024-11-11 18:08 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-11-09  1:28 [PATCH 0/4] proc/kcore: performance optimizations Omar Sandoval
2024-11-09  1:28 ` [PATCH 1/4] proc/kcore: mark proc entry as permanent Omar Sandoval
2024-11-09  1:28 ` [PATCH 2/4] proc/kcore: don't walk list on every read Omar Sandoval
2024-11-09  1:28 ` [PATCH 3/4] proc/kcore: use percpu_rw_semaphore for kclist_lock Omar Sandoval
2024-11-09  1:28 ` [PATCH 4/4] MAINTAINERS: add me as /proc/kcore maintainer Omar Sandoval
2024-11-11  9:00 ` [PATCH 0/4] proc/kcore: performance optimizations Christian Brauner
2024-11-11 18:08   ` Omar Sandoval [this message]
2024-11-12  9:35     ` Christian Brauner

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