linux-kernel - Re: [PATCH v8 0/5] kernfs: proposed locking and concurrency improvement

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Message-ID: <acfda4e29ca7ff5f2169d6db3ae5d6a0f0f5d77d.camel@themaw.net>
Date:   Fri, 16 Jul 2021 18:20:18 +0800
From:   Ian Kent <raven@...maw.net>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Tejun Heo <tj@...nel.org>
Cc:     Eric Sandeen <sandeen@...deen.net>, Fox Chen <foxhlchen@...il.com>,
        Brice Goglin <brice.goglin@...il.com>,
        Al Viro <viro@...IV.linux.org.uk>,
        Rick Lindsley <ricklind@...ux.vnet.ibm.com>,
        David Howells <dhowells@...hat.com>,
        Miklos Szeredi <miklos@...redi.hu>,
        Marcelo Tosatti <mtosatti@...hat.com>,
        "Eric W. Biederman" <ebiederm@...ssion.com>,
        Carlos Maiolino <cmaiolino@...hat.com>,
        linux-fsdevel <linux-fsdevel@...r.kernel.org>,
        Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v8 0/5] kernfs: proposed locking and concurrency
 improvement

On Fri, 2021-07-16 at 18:16 +0800, Ian Kent wrote:
> Hi,
> 
> Here are benchmark test runs against patch set v8.
> There pretty much the same a the v7 results as they should be.

And here are the perf graphs.

Ian

View attachment "base-files-cpus-80-perf.txt" of type "text/plain" (367379 bytes)

View attachment "base-missing-cpus-80-perf.txt" of type "text/plain" (389508 bytes)

View attachment "patched-files-cpus-80-perf.txt" of type "text/plain" (387614 bytes)

View attachment "patched-missing-cpus-80-perf.txt" of type "text/plain" (491492 bytes)