From: Andrew Morton <akpm@linux-foundation.org>
To: Madars Vitolins <m@silodev.com>
Cc: Jason Baron <jbaron@akamai.com>,
torvalds@linux-foundation.org, mtk.manpages@gmail.com,
mingo@kernel.org, peterz@infradead.org, viro@ftp.linux.org.uk,
normalperson@yhbt.net, corbet@lwn.net, luto@amacapital.net,
hagen@jauu.net, linux-kernel@vger.kernel.org,
linux-fsdevel@vger.kernel.org, linux-api@vger.kernel.org
Subject: Re: [PATCH] epoll: restrict EPOLLEXCLUSIVE to POLLIN and POLLOUT
Date: Thu, 4 Feb 2016 14:59:52 -0800 [thread overview]
Message-ID: <20160204145952.53f536f5d4cdef96844104b7@linux-foundation.org> (raw)
In-Reply-To: <00ac7df620d4d0500b18af4a30034815@silodev.com>
On Thu, 04 Feb 2016 23:44:05 +0200 Madars Vitolins <m@silodev.com> wrote:
> Hi Jason,
>
>
> Just run off the original tests with this patch (eventpoll.c from
> 4.5-rc2 + patch bellow). Got the same good results, no regression.
>
> $ time ./bankcl
> Account balance is: 1359856158.04 USD
> Account balance is: 1359856158.04 USD
> Account balance is: 1359856158.04 USD
> Account balance is: 1359856158.04 USD
> Account balance is: 1359856158.04 USD
> Account balance is: 1359856158.04 USD
> Account balance is: 1359856158.04 USD
> Account balance is: 1359856158.04 USD
> Account balance is: 1359856158.04 USD
> Account balance is: 101528948.40 USD
>
> real 0m41.826s
> user 0m29.513s
> sys 0m6.490s
>
>
> Test case:
> https://mvitolin.wordpress.com/2015/12/05/endurox-testing-epollexclusive-flag/
>
> PS,
>
> Original cases 0m24.953s vs 0m41.826s now probably is related with my pc
> setup. As I just now re-run test with original patch, got the same ~41
> sec.
>
> So I am fine with this patch!
>
Thanks, I shall add your Tested-by:
One thing we're sorely missing is an epoll test suite, in
tools/testing/selftests. If anyone has anything which we can use to
kick things off, please hand it over ;)
next prev parent reply other threads:[~2016-02-04 22:59 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-04 15:39 [PATCH] epoll: restrict EPOLLEXCLUSIVE to POLLIN and POLLOUT Jason Baron
2016-02-04 21:44 ` Madars Vitolins
2016-02-04 22:59 ` Andrew Morton [this message]
2016-02-05 9:49 ` Madars Vitolins
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