Re: 2.6.0-test9-mm2 - Nick Piggin

All of lore.kernel.org
 help / color / mirror / Atom feed

From: Nick Piggin <piggin@cyberone.com.au>
To: Daniel Drake <dan@reactivated.net>
Cc: Andrew Morton <akpm@osdl.org>,
	linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: 2.6.0-test9-mm2
Date: Wed, 12 Nov 2003 12:18:33 +1100	[thread overview]
Message-ID: <3FB18A69.6020104@cyberone.com.au> (raw)
In-Reply-To: <3FB11B93.60701@reactivated.net>



Daniel Drake wrote:

> I've been getting a couple of audio skips with 2.6.0-test9-mm2. 
> Haven't heard a skip since test4 or so, so I'm assuming this is a 
> result of the IO scheduler tweaks.
>
> Here's how I can produce a skip:
> Running X, general usage (e.g. couple of xterms, an emacs, maybe a 
> mozilla-thunderbird)
> I switch to the first virtual console with Ctrl+Alt+F1. I then switch 
> back to X with Alt+F7. As X is redrawing the screen, the audio skips 
> once.
> This happens most of the time, but its easier to reproduce when i am 
> compiling something, and also when I cycle through the virtual 
> consoles before switching back to X.


Unlikely to be an IO scheduler change.

Switching from X to console or back can cause high CPU scheduling
latencies. I haven't tried to discover why.

WARNING: multiple messages have this Message-ID (diff)

From: Nick Piggin <piggin@cyberone.com.au>
To: Daniel Drake <dan@reactivated.net>
Cc: Andrew Morton <akpm@osdl.org>,
	linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: 2.6.0-test9-mm2
Date: Wed, 12 Nov 2003 12:18:33 +1100	[thread overview]
Message-ID: <3FB18A69.6020104@cyberone.com.au> (raw)
In-Reply-To: <3FB11B93.60701@reactivated.net>


Daniel Drake wrote:

> I've been getting a couple of audio skips with 2.6.0-test9-mm2. 
> Haven't heard a skip since test4 or so, so I'm assuming this is a 
> result of the IO scheduler tweaks.
>
> Here's how I can produce a skip:
> Running X, general usage (e.g. couple of xterms, an emacs, maybe a 
> mozilla-thunderbird)
> I switch to the first virtual console with Ctrl+Alt+F1. I then switch 
> back to X with Alt+F7. As X is redrawing the screen, the audio skips 
> once.
> This happens most of the time, but its easier to reproduce when i am 
> compiling something, and also when I cycle through the virtual 
> consoles before switching back to X.


Unlikely to be an IO scheduler change.

Switching from X to console or back can cause high CPU scheduling
latencies. I haven't tried to discover why.


--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org.  For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"aart@kvack.org"> aart@kvack.org </a>

next prev parent reply	other threads:[~2003-11-12  1:18 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-11-05  6:55 2.6.0-test9-mm2 Andrew Morton
2003-11-05  6:55 ` 2.6.0-test9-mm2 Andrew Morton
2003-11-05 12:30 ` 2.6.0-test9-mm2 Alexander Hoogerhuis
2003-11-05 12:30   ` 2.6.0-test9-mm2 Alexander Hoogerhuis
2003-11-05 16:10 ` 2.6.0-test9-mm2 (compile stats) John Cherry
2003-11-05 16:10   ` John Cherry
2003-11-05 17:02 ` 2.6.0-test9-mm2 Alistair John Strachan
2003-11-05 17:02   ` 2.6.0-test9-mm2 Alistair John Strachan
2003-11-05 23:07 ` 2.6.0-test9-mm2 Martin J. Bligh
2003-11-05 23:07   ` 2.6.0-test9-mm2 Martin J. Bligh
2003-11-10 23:06 ` 2.6.0-test9-mm2 - AIO tests still gets slab corruption Daniel McNeil
2003-11-10 23:06   ` Daniel McNeil
2003-11-10 23:42   ` Andrew Morton
2003-11-10 23:42     ` Andrew Morton
2003-11-11 15:02     ` Suparna Bhattacharya
2003-11-11 15:02       ` Suparna Bhattacharya
2003-11-12 20:10       ` Daniel McNeil
2003-11-12 20:10         ` Daniel McNeil
2003-11-13 11:29         ` Suparna Bhattacharya
2003-11-13 11:29           ` Suparna Bhattacharya
2003-11-11 18:01     ` [PATCH 2.6.0-test9] AIO-ref-count.patch Daniel McNeil
2003-11-11 17:25 ` 2.6.0-test9-mm2 Daniel Drake
2003-11-11 17:25   ` 2.6.0-test9-mm2 Daniel Drake
2003-11-12  1:18   ` Nick Piggin [this message]
2003-11-12  1:18     ` 2.6.0-test9-mm2 Nick Piggin
2003-11-12  3:45     ` 2.6.0-test9-mm2 Mike Fedyk
2003-11-12  3:45       ` 2.6.0-test9-mm2 Mike Fedyk
  -- strict thread matches above, loose matches on Subject: below --
2003-11-05 19:49 2.6.0-test9-mm2 Bradley Chapman

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=3FB18A69.6020104@cyberone.com.au \
    --to=piggin@cyberone.com.au \
    --cc=akpm@osdl.org \
    --cc=dan@reactivated.net \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-mm@kvack.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

Be sure your reply has a Subject: header at the top and a blank line before the message body.

This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.