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From: Pavel Machek <pavel@suse.cz>
To: Tommy Reynolds <reynolds@redhat.com>
Cc: Pavel Machek <pavel@suse.cz>, linux-kernel@vger.kernel.org
Subject: Re: GFP_FAIL?
Date: Tue, 25 Sep 2001 21:59:50 +0200	[thread overview]
Message-ID: <20010925215950.C17829@atrey.karlin.mff.cuni.cz> (raw)
In-Reply-To: <20010924210951.A165@bug.ucw.cz> <20010925144611.01590a08.reynolds@redhat.com>
In-Reply-To: <20010925144611.01590a08.reynolds@redhat.com>

Hi!

> > I need to alloc as much memory as possible, *but not more*. I do not
> > want to OOM-kill anything. How do I do this? Tried GFP_KERNEL, will
> > oom-kill. GFP_USER will OOM-kill, too.
> 
> Try GFP_ATOMIC; GFP_KERNEL sets the __GFP_WAIT flag and you don't
> want that.

No, I want other apps to be moved to swap, dirty data written out
etc. I really can't live with GFP_ATOMIC. 

> But, if you're really asking how to know how large the current working set is,
> so that you don't grab more than your applications are going to need and
> eventually OOM, you'll need to set GFP_HAVE_CRYSTAL_BALL ;-)

I want to push just as much that I do not cause OOM. I'll stop
applications real soon after that.

							Pavel
-- 
Causalities in World Trade Center: 6453 dead inside the building,
cryptography in U.S.A. and free speech in Czech Republic.

      reply	other threads:[~2001-09-25 19:59 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-09-24 19:09 GFP_FAIL? Pavel Machek
2001-09-25 18:43 ` GFP_FAIL? Marcelo Tosatti
2001-09-25 19:46 ` GFP_FAIL? Tommy Reynolds
2001-09-25 19:59   ` Pavel Machek [this message]

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