From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [PATCH net-next] inet: reduce TLB pressure for listeners Date: Wed, 25 Jun 2014 16:37:42 -0700 (PDT) Message-ID: <20140625.163742.2006962270899373416.davem@davemloft.net> References: <1403613168.3796.8.camel@edumazet-glaptop2.roam.corp.google.com> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org To: eric.dumazet@gmail.com Return-path: Received: from shards.monkeyblade.net ([149.20.54.216]:39249 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751598AbaFYXhn (ORCPT ); Wed, 25 Jun 2014 19:37:43 -0400 In-Reply-To: <1403613168.3796.8.camel@edumazet-glaptop2.roam.corp.google.com> Sender: netdev-owner@vger.kernel.org List-ID: From: Eric Dumazet Date: Tue, 24 Jun 2014 05:32:48 -0700 > From: Eric Dumazet > > It seems overkill to use vmalloc() for typical listeners with less than > 2048 hash buckets. Try kmalloc() and fallback to vmalloc() to reduce TLB > pressure. > > Use kvfree() helper as it is now available. > Use ilog2() instead of a loop. > > Signed-off-by: Eric Dumazet Applied, thanks Eric.