From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from cdptpa-omtalb.mail.rr.com (cdptpa-omtalb.mail.rr.com [75.180.132.120]) by speech.braille.uwo.ca (Postfix) with ESMTP id 3C96510B9D for ; Fri, 29 May 2009 13:02:13 -0400 (EDT) Received: from linux1.localdomain ([66.25.35.110]) by cdptpa-omta02.mail.rr.com with ESMTP id <20090529170206456.ZVAN15569@cdptpa-omta02.mail.rr.com> for ; Fri, 29 May 2009 17:02:12 +0000 Received: by linux1.localdomain (Postfix, from userid 1000) id D9406464FE; Fri, 29 May 2009 12:02:05 -0500 (CDT) Date: Fri, 29 May 2009 12:02:05 -0500 From: William Hubbs To: "Speakup is a screen review system for Linux." Subject: Re: CPU issues with Speakup Message-ID: <20090529170205.GA7325@linux1> Mail-Followup-To: "Speakup is a screen review system for Linux." References: <4A1FEFC4.3060409@onlinehome.de> <4A200147.7000105@onlinehome.de> <20090529154029.GU6307@const.bordeaux.inria.fr> <4A200326.40700@onlinehome.de> <20090529160907.TBHZ14603.eastrmmtao102.cox.net@eastrmimpo01.cox.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; x-action=pgp-signed Content-Disposition: inline In-Reply-To: <20090529160907.TBHZ14603.eastrmmtao102.cox.net@eastrmimpo01.cox.net> User-Agent: Mutt/1.5.16 (2007-06-09) X-BeenThere: speakup@braille.uwo.ca X-Mailman-Version: 2.1.12 Precedence: list Reply-To: "Speakup is a screen review system for Linux." List-Id: "Speakup is a screen review system for Linux." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 29 May 2009 17:02:13 -0000 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Fri, May 29, 2009 at 11:12:39AM -0500, Chris Brannon wrote: > I am attaching the output from an execution of "powertop -d" on my > system. During this run, espeakup had an average of 1669.1 wakeups / second. Ok, I know what is happening here. Espeakup is using a select() call to read the softsynth with a timeout of 1 microsecond, so that would be about right. The issue is with espeakup, not speakup. I will take a look at how I am using the select call. > PowerTOP 1.11 (C) 2007, 2008 Intel Corporation > > Collecting data for 15 seconds > > > < Detailed C-state information is not available.> > P-states (frequencies) > Wakeups-from-idle per second : 2075.9 interval: 15.0s > no ACPI power usage estimate available > Top causes for wakeups: > 80.4% (1669.1) espeakup : hrtimer_start_range_ns (hrtimer_wakeup) > 14.9% (309.2) : VIA8237 > 2.5% ( 51.1) : ra0 > 1.3% ( 26.3) : hrtimer_start_range_ns (tick_sched_timer) > 0.4% ( 8.0) : usb_hcd_poll_rh_status (rh_timer_func) > 0.2% ( 3.3) : PS/2 keyboard/mouse/touchpad > 0.1% ( 2.0) : clocksource_register (clocksource_watchdog) > 0.1% ( 1.5) emacs : synth_printf (thread_wake_up) > 0.0% ( 1.0) dhcpcd : MlmeInit (MlmePeriodicExec) > 0.0% ( 0.3) : neigh_table_init_no_netlink (neigh_periodic_timer) > 0.0% ( 0.3) : neigh_table_init_no_netlink (neigh_periodic_timer) > 0.0% ( 0.2) : sata_via > 0.0% ( 0.2) init : hrtimer_start_range_ns (hrtimer_wakeup) > 0.0% ( 0.2) : page_writeback_init (wb_timer_fn) > 0.0% ( 0.1) kinit : start_this_handle (commit_timeout) > 0.0% ( 0.1) events/0 : queue_delayed_work (delayed_work_timer_fn) > 0.0% ( 0.1) mpd : announce_edge (kd_nosound) > 0.0% ( 0.1) : announce_edge (kd_nosound) > > _______________________________________________ > Speakup mailing list > Speakup@braille.uwo.ca > http://speech.braille.uwo.ca/mailman/listinfo/speakup -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.11 (GNU/Linux) iEYEARECAAYFAkogFQ0ACgkQblQW9DDEZTh2hwCghbU6ciU8uU8gyqxf96VRkIWC GKMAn1TKtI5ebj4R1YGs6A/itNHMqYUV =/8v2 -----END PGP SIGNATURE-----