From: Oleg Nesterov <oleg@tv-sign.ru>
To: Lee Revell <rlrevell@joe-job.com>
Cc: Andrew Morton <akpm@osdl.org>,
"Eric W. Biederman" <ebiederm@xmission.com>,
Ingo Molnar <mingo@elte.hu>,
"Paul E. McKenney" <paulmck@us.ibm.com>,
Roland McGrath <roland@redhat.com>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/4] coredump: speedup SIGKILL sending
Date: Fri, 7 Apr 2006 03:55:19 +0400 [thread overview]
Message-ID: <20060406235519.GA331@oleg> (raw)
In-Reply-To: <1144352758.2866.105.camel@mindpipe>
On 04/06, Lee Revell wrote:
> On Fri, 2006-04-07 at 02:06 +0400, Oleg Nesterov wrote:
> > With this patch a thread group is killed atomically under ->siglock.
> > This is faster because we can use sigaddset() instead of force_sig_info()
> > and this is used in further patches.
> >
> > Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
>
> Won't this cause huge latencies when a process with lots of threads is
> killed?
Yes, irqs are disabled. But this is not worse than 'kill -9 pid', note
that __group_complete_signal() or zap_other_threads() do the same.
Oleg.
next prev parent reply other threads:[~2006-04-06 19:58 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-04-06 22:06 [PATCH 2/4] coredump: speedup SIGKILL sending Oleg Nesterov
2006-04-06 19:45 ` Lee Revell
2006-04-06 23:55 ` Oleg Nesterov [this message]
2006-04-06 20:07 ` Lee Revell
2006-04-07 23:28 ` Oleg Nesterov
2006-04-07 19:42 ` Lee Revell
2006-04-10 4:11 ` Roland McGrath
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=20060406235519.GA331@oleg \
--to=oleg@tv-sign.ru \
--cc=akpm@osdl.org \
--cc=ebiederm@xmission.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@elte.hu \
--cc=paulmck@us.ibm.com \
--cc=rlrevell@joe-job.com \
--cc=roland@redhat.com \
/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.