From: Ingo Molnar <mingo@elte.hu>
To: Esben Nielsen <simlo@phys.au.dk>
Cc: Bill Huey <bhuey@lnxw.com>,
linux-kernel@vger.kernel.org,
unlisted-recipients: no@chiara.elte.hu, To-header@chiara.elte.hu,
on@chiara.elte.hu, "input <"@chiara.elte.hu, ;
Subject: Re: [PATCH] Real-Time Preemption, another mutex implementation.
Date: Mon, 15 Nov 2004 19:01:36 +0100 [thread overview]
Message-ID: <20041115180136.GA8088@elte.hu> (raw)
In-Reply-To: <200411131729.AA09315@da410.ifa.au.dk>
* Esben Nielsen <simlo@phys.au.dk> wrote:
> The main reason for this speedup is that I only keep the highest
> priority waiter on each mutex held by task on the list corresponding
> to task->pi_waiters and I keep the list sorted.
interesting, but it would be nice to see some actual benchmark results
as well. You made the 'task blocks' case faster at the expense of making
the (more common) 'task doesnt block' case slower. Which one wins
depends on benchmarks.
Ingo
next prev parent reply other threads:[~2004-11-15 16:59 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-11-13 17:29 [PATCH] Real-Time Preemption, another mutex implementation Esben Nielsen
2004-11-15 18:01 ` Ingo Molnar [this message]
[not found] <20041115023407.GA23686@nietzsche.lynx.com>
2004-11-15 14:34 ` Esben Nielsen
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=20041115180136.GA8088@elte.hu \
--to=mingo@elte.hu \
--cc="input <"@chiara.elte.hu \
--cc=To-header@chiara.elte.hu \
--cc=bhuey@lnxw.com \
--cc=linux-kernel@vger.kernel.org \
--cc=no@chiara.elte.hu \
--cc=on@chiara.elte.hu \
--cc=simlo@phys.au.dk \
/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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox