From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tony Lindgren Subject: Re: [PATCH] timer optimization part 2. Date: Thu, 8 May 2008 10:40:40 -0700 Message-ID: <20080508174039.GD24454@atomide.com> References: <3B6D69C3A9EBCA4BA5DA60D91302742903CCA4F9@dlee13.ent.ti.com> <20080319155835.GE14860@atomide.com> <3B6D69C3A9EBCA4BA5DA60D91302742903CCA8F8@dlee13.ent.ti.com> <20080320115749.GF14978@atomide.com> <3B6D69C3A9EBCA4BA5DA60D91302742903D3B096@dlee13.ent.ti.com> <20080331104904.GK26502@atomide.com> <3B6D69C3A9EBCA4BA5DA60D91302742903E22347@dlee13.ent.ti.com> <20080402072340.GH31913@atomide.com> <49DA3A9F04A0E5498FF06EFCC343DCF90203DA56FF@dlee13.ent.ti.com> <3B6D69C3A9EBCA4BA5DA60D91302742904410321@dlee13.ent.ti.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from mho-02-bos.mailhop.org ([63.208.196.179]:63364 "EHLO mho-02-bos.mailhop.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752007AbYEHRkl (ORCPT ); Thu, 8 May 2008 13:40:41 -0400 Content-Disposition: inline In-Reply-To: <3B6D69C3A9EBCA4BA5DA60D91302742904410321@dlee13.ent.ti.com> Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: "Woodruff, Richard" Cc: linux-omap@vger.kernel.org * Woodruff, Richard [080507 16:47]: > So what about this? Yeah, looks good, I'll push it today. Tony > > -----Original Message----- > > From: Woodruff, Richard > > Sent: Friday, April 04, 2008 3:04 PM > > To: Tony Lindgren > > Cc: Kevin Hilman; linux-omap@vger.kernel.org > > Subject: [PATCH] timer optimization part 2. > > > > Hi, > > > > This patch adds a new function timer_load_start() which optimizes the > > system timer. In tree users have been updated to use this function. > > > > This was tested and working on a pull as of 4 April 08 on 2.6.25-rc8- > > omap1-04408-g722c80b on 3430SDP. A previous version has been working > > with out issue for a while now. > > > > * Before patch register writes are taking up .078% @ 500MHz. > > > > Address |total |min |max |avr > |count|ratio% > > old\process\default_idle|7.369s |0.0us|999.902ms|14.477ms|509. > |62.661% > > ld\Global\cpu_v7_do_idle|4.265s |0.0us|375.786ms|24.374ms|175. > |36.270% > > (UNKNOWN)|17.503ms|0.us|531.080us|5.119us|3419. > |0.148% > > r\omap_dm_timer_set_load|8.135ms|0.0us|79.887us|15.065us|540. > |0.069% > > <-- > > \vmlinux-old\Global\_end|2.023ms|0.0us|4.000us|0.560us|3613. > |0.017% > > -old\Global\__raw_readsw|1.962ms|0.0us|108.610us|9.167us|214. > |0.016% > > old\smc91x\smc_interrupt|1.353ms|0.0us|10.212us|2.348us|576. > |0.011% > > s/namei\__link_path_walk|1.161ms|0.0us|4.310us|0.762us| 1524. > |0.009% > > \omap_dm_timer_write_reg|1.085ms|0.0us|126.150us|2.153us|504. > |0.009% > > <-- > > > > * After patch timer functions do not show up in top listings. > > > > Regards, > > Richard W. >