From: Ulrich Drepper <drepper@redhat.com>
To: Linus Torvalds <torvalds@osdl.org>
Cc: "Bill Rugolsky Jr." <brugolsky@telemetry-investments.com>,
Paul Venezia <pvenezia@jpj.net>,
Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: ext3 performance inconsistencies, 2.4/2.6
Date: Tue, 04 Nov 2003 15:48:28 -0800 [thread overview]
Message-ID: <3FA83ACC.5060700@redhat.com> (raw)
In-Reply-To: <Pine.LNX.4.44.0311041422580.20373-100000@home.osdl.org>
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Linus Torvalds wrote:
> Is the TLS stuff done through an extra dynamically loaded indirection or
> something?
This has nothing to do with TLS. The code currently used got to use the
general libpthread locking code. This was, I think, the result of one
of the last changes in the locking code where the libc side wasn't
updated correctly. I've done this and this is what I see:
drepper@ht 20031104-2$ time ./u > /dev/null
real 0m1.272s
user 0m1.270s
sys 0m0.000s
drepper@ht 20031104-2$ time LD_ASSUME_KERNEL=2.4.1 ./u > /dev/null
real 0m0.316s
user 0m0.320s
sys 0m0.000s
drepper@ht 20031104-2$ time LD_LIBRARY_PATH=. ./u > /dev/null
real 0m0.207s
user 0m0.210s
sys 0m0.000s
The first is the old nptl code, the second LinuxThreads, the third the
current nptl code.
- --
- --------------. ,-. 444 Castro Street
Ulrich Drepper \ ,-----------------' \ Mountain View, CA 94041 USA
Red Hat `--' drepper at redhat.com `---------------------------
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.2.2 (GNU/Linux)
iD8DBQE/qDrM2ijCOnn/RHQRAnAyAJ48OxeRGWefxHMVImZMiuZ2YaueOwCgk+8A
9k3SC5sMLghNmlMmzKwWv/E=
=UT6g
-----END PGP SIGNATURE-----
next prev parent reply other threads:[~2003-11-04 23:49 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-11-04 19:10 ext3 performance inconsistencies, 2.4/2.6 Paul Venezia
2003-11-04 19:36 ` Linus Torvalds
2003-11-04 20:20 ` Bill Rugolsky Jr.
2003-11-04 20:30 ` Linus Torvalds
2003-11-04 21:07 ` Paul Venezia
2003-11-04 21:28 ` Bill Rugolsky Jr.
2003-11-04 21:40 ` Linus Torvalds
2003-11-04 22:00 ` Ulrich Drepper
2003-11-04 22:31 ` Linus Torvalds
2003-11-04 23:48 ` Ulrich Drepper [this message]
2003-11-04 23:56 ` Linus Torvalds
2003-11-05 0:58 ` jlnance
2003-11-05 7:08 ` Jakub Jelinek
2003-11-04 22:19 ` Bill Rugolsky Jr.
2003-11-04 22:26 ` Bill Rugolsky Jr.
2003-11-05 7:14 ` Jakub Jelinek
2003-11-04 21:39 ` Bill Rugolsky Jr.
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=3FA83ACC.5060700@redhat.com \
--to=drepper@redhat.com \
--cc=brugolsky@telemetry-investments.com \
--cc=linux-kernel@vger.kernel.org \
--cc=pvenezia@jpj.net \
--cc=torvalds@osdl.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.