From: Nishanth Aravamudan <nacc@us.ibm.com>
To: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Nish Aravamudan <nish.aravamudan@gmail.com>,
Andrew Morton <akpm@osdl.org>,
linux-kernel@vger.kernel.org
Subject: Re: tty update speed regression (was: 2.6.14-rc2-mm1)
Date: Fri, 23 Sep 2005 14:32:41 -0700 [thread overview]
Message-ID: <20050923213241.GB3950@us.ibm.com> (raw)
In-Reply-To: <20050923194252.GA6460@mipter.zuzino.mipt.ru>
On 23.09.2005 [23:42:53 +0400], Alexey Dobriyan wrote:
> On Fri, Sep 23, 2005 at 12:07:49PM -0700, Nishanth Aravamudan wrote:
> > On 23.09.2005 [22:42:16 +0400], Alexey Dobriyan wrote:
> > > poll([{fd=0, events=POLLIN}], 1, 0) = 0
>
> > > I can send full strace log if needed.
> >
> > Nope, that helped tremendously! I think I know what the issue is (and
> > why it's HZ dependent).
> >
> > In the current code, (2.6.13.2, e.g) we allow 0 timeout poll-requests to
> > be resolved as 0 jiffy requests. But in my patch, those requests become
> > 1 jiffy (which of course depends on HZ and gets quite long if HZ=100)!
> >
> > Care to try the following patch?
>
> It works! Now, even with HZ=100, gameplay is smooth.
>
> Andrew, please, apply.
Great! Thanks for the testing, Alexey.
-Nish
next prev parent reply other threads:[~2005-09-23 21:32 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-09-22 5:28 2.6.14-rc2-mm1 Andrew Morton
2005-09-22 6:35 ` 2.6.14-rc2-mm1 Joel Becker
2005-09-22 6:46 ` 2.6.14-rc2-mm1 Reuben Farrelly
2005-09-22 7:03 ` 2.6.14-rc2-mm1 Andrew Morton
2005-09-22 18:59 ` 2.6.14-rc2-mm1 Martin J. Bligh
2005-09-22 19:52 ` 2.6.14-rc2-mm1 Andrew Morton
2005-09-22 20:14 ` 2.6.14-rc2-mm1 Martin J. Bligh
2005-09-23 0:28 ` 2.6.14-rc2-mm1 Martin J. Bligh
2005-09-22 22:28 ` 2.6.14-rc2-mm1 - ide problems ? Badari Pulavarty
2005-09-22 23:39 ` Andrew Morton
2005-09-22 19:50 ` tty update speed regression (was: 2.6.14-rc2-mm1) Alexey Dobriyan
2005-09-22 21:49 ` Alexey Dobriyan
2005-09-23 0:08 ` Nishanth Aravamudan
2005-09-23 17:12 ` Nish Aravamudan
2005-09-23 18:42 ` Alexey Dobriyan
2005-09-23 19:07 ` Nishanth Aravamudan
2005-09-23 19:42 ` Alexey Dobriyan
2005-09-23 21:32 ` Nishanth Aravamudan [this message]
2005-09-24 17:43 ` 2.6.14-rc2-mm1 Mattia Dongili
2005-09-24 17:58 ` 2.6.14-rc2-mm1 Mattia Dongili
2005-09-24 18:23 ` 2.6.14-rc2-mm1 Andrew Morton
2005-09-26 19:33 ` 2.6.14-rc2-mm1 Seth, Rohit
2005-09-27 18:57 ` 2.6.14-rc2-mm1 Martin J. Bligh
2005-09-27 20:05 ` 2.6.14-rc2-mm1 Rohit Seth
2005-09-27 21:18 ` 2.6.14-rc2-mm1 Martin J. Bligh
2005-09-27 21:51 ` 2.6.14-rc2-mm1 Rohit Seth
2005-09-27 21:59 ` 2.6.14-rc2-mm1 Martin J. Bligh
2005-09-27 22:49 ` 2.6.14-rc2-mm1 Rohit Seth
2005-09-27 22:49 ` 2.6.14-rc2-mm1 Martin J. Bligh
2005-09-27 23:16 ` 2.6.14-rc2-mm1 Rohit Seth
2005-09-27 7:13 ` 2.6.14-rc2-mm1 (Oops, possibly Netfilter related?) Reuben Farrelly
2005-09-27 7:44 ` Andrew Morton
2005-09-27 18:59 ` Martin J. Bligh
2005-10-02 17:13 ` Paul Jackson
2005-10-02 21:31 ` Martin J. Bligh
2005-10-03 17:20 ` Rohit Seth
2005-10-03 17:56 ` Martin J. Bligh
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