From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ingo Molnar Date: Fri, 29 Jul 2005 08:53:40 +0000 Subject: Re: Delete scheduler SD_WAKE_AFFINE and SD_WAKE_BALANCE flags Message-Id: <20050729085340.GA8699@elte.hu> List-Id: References: <200507290627.j6T6Rrg06842@unix-os.sc.intel.com> <42E9ED47.1030003@yahoo.com.au> In-Reply-To: <42E9ED47.1030003@yahoo.com.au> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Nick Piggin Cc: "Chen, Kenneth W" , linux-kernel@vger.kernel.org, linux-ia64@vger.kernel.org * Nick Piggin wrote: > Well, you can easily see suboptimal scheduling decisions on many > programs with lots of interprocess communication. For example, tbench > on a dual Xeon: > > processes 1 2 3 4 > > 2.6.13-rc4: 187, 183, 179 260, 259, 256 340, 320, 349 504, 496, 500 > no wake-bal: 180, 180, 177 254, 254, 253 268, 270, 348 345, 290, 500 > > Numbers are MB/s, higher is better. what type of network was used - localhost or a real one? Ingo