From: Carlos O'Donell via Libc-alpha <libc-alpha@sourceware.org>
To: "H.J. Lu" <hjl.tools@gmail.com>
Cc: Hushiyuan <hushiyuan@huawei.com>,
"libc-alpha@sourceware.org" <libc-alpha@sourceware.org>
Subject: Re: [PATCH] x86: Add thresholds for "rep movsb/stosb" to tunables
Date: Mon, 1 Jun 2020 15:38:34 -0400 [thread overview]
Message-ID: <CAEMqeSrGnky-5W5TOizgrhr0tosTKf=1_dK78QaiXPK7JyDyDg@mail.gmail.com> (raw)
In-Reply-To: <CAMe9rOq-QB2Er67TFp0W69R90yZOAfa3OWnJM+dvefqJgnaCYA@mail.gmail.com>
On Mon, Jun 1, 2020 at 3:33 PM H.J. Lu <hjl.tools@gmail.com> wrote:
> Did you mean adding --list-tunables to ld.so? libc.so.6 doesn't take
> any arguments.
Yes, I mean adding argument processing to libc.so.6, and handling
--list-tunables.
We have enough infrastructure in place that wiring that up shouldn't be too bad?
Then, even in trimmed down containers, you can just run
/lib64/libc.so.6 --list-tunables and get back the list of tunables and
their min, max, and security values.
The alternative is a glibc-tunables binary which does only this, but
that seems like waste.
Cheers,
Carlos.
next prev parent reply other threads:[~2020-06-01 19:38 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-16 7:30 pthread_cond performence Discussion liqingqing
2020-03-18 12:12 ` Carlos O'Donell via Libc-alpha
2020-03-18 12:53 ` Torvald Riegel via Libc-alpha
2020-03-18 14:42 ` Carlos O'Donell via Libc-alpha
2020-05-23 4:04 ` liqingqing
2020-05-23 4:10 ` [PATCH]x86: update REP_STOSB_THRESHOLD's default value from 2k to 1M liqingqing
2020-05-23 4:37 ` [PATCH] x86: Add thresholds for "rep movsb/stosb" to tunables H.J. Lu via Libc-alpha
2020-05-28 11:56 ` H.J. Lu via Libc-alpha
2020-05-28 13:47 ` liqingqing
2020-05-29 13:13 ` Carlos O'Donell via Libc-alpha
2020-05-29 13:21 ` H.J. Lu via Libc-alpha
2020-05-29 16:18 ` Carlos O'Donell via Libc-alpha
2020-06-01 19:32 ` H.J. Lu via Libc-alpha
2020-06-01 19:38 ` Carlos O'Donell via Libc-alpha [this message]
2020-06-01 20:15 ` H.J. Lu via Libc-alpha
2020-06-01 20:19 ` H.J. Lu via Libc-alpha
2020-06-01 20:48 ` Florian Weimer
2020-06-01 20:56 ` Carlos O'Donell via Libc-alpha
2020-06-01 21:13 ` H.J. Lu via Libc-alpha
2020-06-01 22:43 ` H.J. Lu via Libc-alpha
2020-06-02 2:08 ` Carlos O'Donell via Libc-alpha
2020-06-04 21:00 ` [PATCH] libc.so: Add --list-tunables H.J. Lu via Libc-alpha
2020-06-05 22:45 ` V2 " H.J. Lu via Libc-alpha
2020-06-06 21:51 ` V3 [PATCH] libc.so: Add --list-tunables support to __libc_main H.J. Lu via Libc-alpha
2020-07-02 18:00 ` Carlos O'Donell via Libc-alpha
2020-07-02 19:08 ` [PATCH] Update tunable min/max values H.J. Lu via Libc-alpha
2020-07-03 16:14 ` Carlos O'Donell via Libc-alpha
2020-07-03 16:54 ` [PATCH] x86: Add thresholds for "rep movsb/stosb" to tunables H.J. Lu via Libc-alpha
2020-07-03 17:43 ` Carlos O'Donell via Libc-alpha
2020-07-03 17:53 ` H.J. Lu via Libc-alpha
2020-12-21 4:38 ` [PATCH]x86: update REP_STOSB_THRESHOLD's default value from 2k to 1M Siddhesh Poyarekar
2020-12-22 1:02 ` Qingqing Li
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