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From: "Mika Penttilä" <mika.penttila@kolumbus.fi>
To: Christoph Lameter <clameter@sgi.com>
Cc: akpm@osdl.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: NUMA node swapping V3
Date: Thu, 28 Oct 2004 19:20:11 +0300	[thread overview]
Message-ID: <41811C3B.2020700@kolumbus.fi> (raw)
In-Reply-To: <Pine.LNX.4.58.0410280820500.25586@schroedinger.engr.sgi.com>

> 	if (pg == orig) {
> 		z->pageset[cpu].numa_hit++;
>+		/*
>+		 * If zone allocation has left less than
>+		 * (sysctl_node_swap / 10) %  of the zone free invoke kswapd.
>+		 * (the page limit is obtained through (pages*limit)/1024 to
>+		 * make the calculation more efficient)
>+		 */
>+		if (z->free_pages < (z->present_pages * sysctl_node_swap) << 10)
>+			wakeup_kswapd(z);
> 	} else {
> 		p->numa_miss++;
> 		zonelist->zones[0]->pageset[cpu].numa_foreign++;
>Index: linux-2.6.9/kernel/sysctl.c
>===================================================================
>  
>

I think you mean >> 10 though.

--Mika


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  parent reply	other threads:[~2004-10-28 16:20 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-10-28 15:23 Christoph Lameter
2004-10-28 15:40 ` Martin J. Bligh
2004-10-28 15:49   ` Christoph Lameter
2004-10-28 16:20 ` Mika Penttilä [this message]
2004-10-28 20:45   ` Christoph Lameter

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