From: Davidlohr Bueso <dave@stgolabs.net>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Mel Gorman <mgorman@suse.de>,
linux-mm@kvack.org, Minchan Kim <minchan@kernel.org>,
Vlastimil Babka <vbabka@suse.cz>,
linux-kernel@vger.kernel.org
Subject: Re: [RFC PATCH] mm: madvise: Ignore repeated MADV_DONTNEED hints
Date: Mon, 02 Feb 2015 16:26:25 -0800 [thread overview]
Message-ID: <1422923185.14964.2.camel@stgolabs.net> (raw)
In-Reply-To: <20150202143541.1efdd2b571413200cb9a4698@linux-foundation.org>
On Mon, 2015-02-02 at 14:35 -0800, Andrew Morton wrote:
> On Mon, 2 Feb 2015 22:18:24 +0000 Mel Gorman <mgorman@suse.de> wrote:
>
> > > Is there something
> > > preventing this from being addressed within glibc?
> >
> > I doubt it other than I expect they'll punt it back and blame either the
> > application for being stupid or the kernel for being slow.
>
> *Is* the application being stupid? What is it actually doing?
> Something like
>
> pthread_routine()
> {
> p = malloc(X);
> do_some(work);
> free(p);
Ebizzy adds a time based loop in there. But yeah, pretty much a standard
pthread model.
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WARNING: multiple messages have this Message-ID (diff)
From: Davidlohr Bueso <dave@stgolabs.net>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Mel Gorman <mgorman@suse.de>,
linux-mm@kvack.org, Minchan Kim <minchan@kernel.org>,
Vlastimil Babka <vbabka@suse.cz>,
linux-kernel@vger.kernel.org
Subject: Re: [RFC PATCH] mm: madvise: Ignore repeated MADV_DONTNEED hints
Date: Mon, 02 Feb 2015 16:26:25 -0800 [thread overview]
Message-ID: <1422923185.14964.2.camel@stgolabs.net> (raw)
In-Reply-To: <20150202143541.1efdd2b571413200cb9a4698@linux-foundation.org>
On Mon, 2015-02-02 at 14:35 -0800, Andrew Morton wrote:
> On Mon, 2 Feb 2015 22:18:24 +0000 Mel Gorman <mgorman@suse.de> wrote:
>
> > > Is there something
> > > preventing this from being addressed within glibc?
> >
> > I doubt it other than I expect they'll punt it back and blame either the
> > application for being stupid or the kernel for being slow.
>
> *Is* the application being stupid? What is it actually doing?
> Something like
>
> pthread_routine()
> {
> p = malloc(X);
> do_some(work);
> free(p);
Ebizzy adds a time based loop in there. But yeah, pretty much a standard
pthread model.
next prev parent reply other threads:[~2015-02-03 0:26 UTC|newest]
Thread overview: 76+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-02-02 16:55 [RFC PATCH] mm: madvise: Ignore repeated MADV_DONTNEED hints Mel Gorman
2015-02-02 16:55 ` Mel Gorman
2015-02-02 22:05 ` Andrew Morton
2015-02-02 22:05 ` Andrew Morton
2015-02-02 22:18 ` Mel Gorman
2015-02-02 22:18 ` Mel Gorman
2015-02-02 22:35 ` Andrew Morton
2015-02-02 22:35 ` Andrew Morton
2015-02-03 0:26 ` Davidlohr Bueso [this message]
2015-02-03 0:26 ` Davidlohr Bueso
2015-02-03 10:50 ` Mel Gorman
2015-02-03 10:50 ` Mel Gorman
2015-02-05 21:44 ` Rik van Riel
2015-02-05 21:44 ` Rik van Riel
2015-02-02 22:22 ` Dave Hansen
2015-02-02 22:22 ` Dave Hansen
2015-02-03 8:19 ` MADV_DONTNEED semantics? Was: " Vlastimil Babka
2015-02-03 8:19 ` Vlastimil Babka
[not found] ` <54D08483.40209-AlSwsSmVLrQ@public.gmane.org>
2015-02-03 10:53 ` Kirill A. Shutemov
2015-02-03 10:53 ` Kirill A. Shutemov
2015-02-03 10:53 ` Kirill A. Shutemov
2015-02-03 11:42 ` Vlastimil Babka
2015-02-03 11:42 ` Vlastimil Babka
2015-02-03 16:20 ` Michael Kerrisk (man-pages)
2015-02-03 16:20 ` Michael Kerrisk (man-pages)
[not found] ` <54D0F56A.9050003-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2015-02-04 13:46 ` Vlastimil Babka
2015-02-04 13:46 ` Vlastimil Babka
2015-02-04 13:46 ` Vlastimil Babka
[not found] ` <54D22298.3040504-AlSwsSmVLrQ@public.gmane.org>
2015-02-04 14:00 ` Michael Kerrisk (man-pages)
2015-02-04 14:00 ` Michael Kerrisk (man-pages)
2015-02-04 14:00 ` Michael Kerrisk (man-pages)
2015-02-04 17:02 ` Vlastimil Babka
2015-02-04 17:02 ` Vlastimil Babka
[not found] ` <54D2508A.9030804-AlSwsSmVLrQ@public.gmane.org>
2015-02-04 19:24 ` Michael Kerrisk (man-pages)
2015-02-04 19:24 ` Michael Kerrisk (man-pages)
2015-02-04 19:24 ` Michael Kerrisk (man-pages)
2015-02-05 1:07 ` Minchan Kim
2015-02-05 1:07 ` Minchan Kim
2015-02-05 1:07 ` Minchan Kim
2015-02-06 15:41 ` Michael Kerrisk (man-pages)
2015-02-06 15:41 ` Michael Kerrisk (man-pages)
2015-02-06 15:41 ` Michael Kerrisk (man-pages)
[not found] ` <54D4E098.8050004-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2015-02-09 6:46 ` Minchan Kim
2015-02-09 6:46 ` Minchan Kim
2015-02-09 6:46 ` Minchan Kim
2015-02-09 9:13 ` Michael Kerrisk (man-pages)
2015-02-09 9:13 ` Michael Kerrisk (man-pages)
2015-02-05 15:41 ` Michal Hocko
2015-02-05 15:41 ` Michal Hocko
2015-02-05 15:41 ` Michal Hocko
2015-02-06 15:57 ` Michael Kerrisk (man-pages)
2015-02-06 15:57 ` Michael Kerrisk (man-pages)
2015-02-06 15:57 ` Michael Kerrisk (man-pages)
[not found] ` <54D4E47E.4020509-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2015-02-06 20:45 ` Michal Hocko
2015-02-06 20:45 ` Michal Hocko
2015-02-06 20:45 ` Michal Hocko
2015-02-09 6:50 ` Minchan Kim
2015-02-09 6:50 ` Minchan Kim
2015-02-09 6:50 ` Minchan Kim
[not found] ` <54D0B43D.8000209-AlSwsSmVLrQ@public.gmane.org>
2015-02-04 0:09 ` Minchan Kim
2015-02-04 0:09 ` Minchan Kim
2015-02-04 0:09 ` Minchan Kim
2015-02-03 11:16 ` Mel Gorman
2015-02-03 11:16 ` Mel Gorman
[not found] ` <20150203111600.GR2395-l3A5Bk7waGM@public.gmane.org>
2015-02-03 15:21 ` Michal Hocko
2015-02-03 15:21 ` Michal Hocko
2015-02-03 15:21 ` Michal Hocko
[not found] ` <20150203152121.GC8914-2MMpYkNvuYDjFM9bn6wA6Q@public.gmane.org>
2015-02-03 16:25 ` Michael Kerrisk (man-pages)
2015-02-03 16:25 ` Michael Kerrisk (man-pages)
2015-02-03 16:25 ` Michael Kerrisk (man-pages)
2015-02-03 9:47 ` Mel Gorman
2015-02-03 9:47 ` Mel Gorman
2015-02-03 10:47 ` Kirill A. Shutemov
2015-02-03 10:47 ` Kirill A. Shutemov
2015-02-03 11:21 ` Mel Gorman
2015-02-03 11:21 ` Mel Gorman
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