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From: Ravikiran G Thirumalai <kiran@scalex86.org>
To: Eric Dumazet <dada1@cosmosbay.com>
Cc: Andrew Morton <akpm@osdl.org>,
	davem@davemloft.net, linux-kernel@vger.kernel.org,
	shai@scalex86.org, netdev@vger.kernel.org,
	pravins@calsoftinc.com
Subject: Re: [patch 3/4] net: Percpufy frequently used variables -- proto.sockets_allocated
Date: Fri, 27 Jan 2006 16:40:27 -0800	[thread overview]
Message-ID: <20060128004027.GE3565@localhost.localdomain> (raw)
In-Reply-To: <43DAAAE3.2030107@cosmosbay.com>

On Sat, Jan 28, 2006 at 12:21:07AM +0100, Eric Dumazet wrote:
> Ravikiran G Thirumalai a écrit :
> >On Fri, Jan 27, 2006 at 11:30:23PM +0100, Eric Dumazet wrote:
> 
> Why not use a boot time allocated percpu area (as done today in 
> setup_per_cpu_areas()), but instead of reserving extra space for module's 
> percpu data, being able to serve alloc_percpu() from this reserved area (ie 
> no kmalloced data anymore), and keeping your

At that time ia64 placed a limit on the max size of per-CPU area 
(PERCPU_ENOUGH_ROOM).  I think that the limit is still there, But hopefully
64K per-CPU should be enough for static + dynamic + modules?

Let me do a allyesconfig on my box and verify.

Thanks,
Kiran

  reply	other threads:[~2006-01-28  0:40 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-01-26 18:56 [patch 0/4] net: Percpufy frequently used variables on struct proto Ravikiran G Thirumalai
2006-01-26 18:59 ` [patch 1/4] net: Percpufy frequently used variables -- add percpu_counter_mod_bh Ravikiran G Thirumalai
2006-01-26 19:02 ` [patch 2/4] net: Percpufy frequently used variables -- struct proto.memory_allocated Ravikiran G Thirumalai
2006-01-27  9:01   ` Eric Dumazet
2006-01-26 19:03 ` [patch 3/4] net: Percpufy frequently used variables -- proto.sockets_allocated Ravikiran G Thirumalai
2006-01-27  8:53   ` Eric Dumazet
2006-01-27 19:52     ` Ravikiran G Thirumalai
2006-01-27 20:16       ` Andrew Morton
2006-01-27 22:30         ` Eric Dumazet
2006-01-27 22:50           ` Ravikiran G Thirumalai
2006-01-27 23:21             ` Eric Dumazet
2006-01-28  0:40               ` Ravikiran G Thirumalai [this message]
2006-01-27 22:44         ` Ravikiran G Thirumalai
2006-01-27 22:58           ` Eric Dumazet
2006-01-27 23:16             ` Andrew Morton
2006-01-28  0:28               ` Eric Dumazet
2006-01-28  0:35                 ` Eric Dumazet
2006-01-28  4:52                   ` Ravikiran G Thirumalai
2006-01-28  7:19                     ` Eric Dumazet
2006-01-28  0:43                 ` Andrew Morton
2006-01-28  1:10                   ` Eric Dumazet
2006-01-28  1:18                     ` Andrew Morton
2006-01-29  0:44                 ` Benjamin LaHaise
2006-01-29  0:55                   ` Andrew Morton
2006-01-29  1:19                     ` Benjamin LaHaise
2006-01-29  1:29                       ` Andrew Morton
2006-01-29  1:45                       ` Kyle McMartin
2006-01-29  5:38                     ` Andi Kleen
2006-01-29  6:54                   ` Eric Dumazet
2006-01-29 19:52                     ` Benjamin LaHaise
2006-01-27 23:01           ` Andrew Morton
2006-01-27 23:08             ` Andrew Morton
2006-01-28  0:01               ` Ravikiran G Thirumalai
2006-01-28  0:26                 ` Andrew Morton
2006-02-03  3:05             ` Ravikiran G Thirumalai
2006-02-03  3:16               ` Andrew Morton
2006-02-03 19:37                 ` Ravikiran G Thirumalai
2006-02-03 20:13                   ` Andrew Morton
2006-01-26 19:05 ` [patch 4/4] net: Percpufy frequently used variables -- proto.inuse Ravikiran G Thirumalai

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