From: Yasunori Goto <y-goto@jp.fujitsu.com>
To: Dave Hansen <haveblue@us.ibm.com>
Cc: Andrew Morton <akpm@osdl.org>, linux-mm <linux-mm@kvack.org>
Subject: Re: [patch] bug of pgdat_list connection in init_bootmem()
Date: Thu, 29 Sep 2005 10:06:23 +0900 [thread overview]
Message-ID: <20050929095955.7ACF.Y-GOTO@jp.fujitsu.com> (raw)
In-Reply-To: <1127925735.10315.232.camel@localhost>
> On Wed, 2005-09-28 at 22:50 +0900, Yasunori Goto wrote:
> > I would like to remove this pgdat_list, to simplify hot-add/remove
> > a node. and posted patch before.
> > http://marc.theaimsgroup.com/?l=linux-mm&m=111596924629564&w=2
> > http://marc.theaimsgroup.com/?l=linux-mm&m=111596953711780&w=2
> >
> > I would like to repost after getting performance impact by this.
> > But it is very hard that I can get time to use big NUMA machine now.
> > So, I don't know when I will be able to repost it.
> >
> > Anyway, this should be modified before remove pgdat_list.
>
> Could you resync those to a current kernel and resend them? I'll take
> them into -mhp for a bit.
>
> I'd be very skeptical that it would hurt performance. If nothing else,
> it just makes the pgdat smaller, and the likelyhood of having the next
> bit in a bitmask and the NODE_DATA() entry in your cache is slightly
> higher than some random pgdat->list.
Ok! I'll do it. :-)
Thanks.
--
Yasunori Goto
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prev parent reply other threads:[~2005-09-29 1:06 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-09-28 13:50 Yasunori Goto
2005-09-28 16:42 ` Dave Hansen
2005-09-29 1:06 ` Yasunori Goto [this message]
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