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Rockbox mail archiveSubject: RE: patch 1378276 (H300 LCD: inlined some calls)RE: patch 1378276 (H300 LCD: inlined some calls)
From: Peter D'Hoye <peter.dhoye_at_telenet.be>
Date: Thu, 22 Dec 2005 00:34:08 +0100 Just to let you know that the latest version optimized by Linus now gives these numbers: lcd_update(): 54,5 fps lcd_update_rect(): 207,0 fps > -----Original Message----- > From: Peter D'Hoye [mailto:peter.dhoye_at_telenet.be] > Sent: Sunday, December 11, 2005 9:40 PM > To: 'rockbox-dev_at_cool.haxx.se' > Subject: patch 1378276 (H300 LCD: inlined some calls) > > > Inlined some calls and got a minor speed increase. > > I also wrote a (very) small plugin to do some basic FPS > measurement. It basically does an lcd_xxx call for two > seconds and then calculates the amount of calls per second. > > I wrote two tests: > - lcd_update() > - lcd_update_rect() for a centered rect 1/4 the area of the lcd > > Some figures: > > * inlined with Kaggen's fix: > lcd_update(): 41,5 fps > lcd_update_rect(): 162,0 fps > > * inlined without Kaggen's fix: > lcd_update(): 41,5 fps > lcd_update_rect(): 160,5 fps > > * not inlined with Kaggen's fix: > lcd_update(): 41,5 fps > lcd_update_rect(): 161,0 fps > > * not inlined without Kaggen's fix: > lcd_update(): 41,5 fps > lcd_update_rect(): 158,0 fps > > > Remaining question: should I submit my FPS test code? > It's not very usefull unless you're optimizing LCD stuff... > Received on 2005-12-22 Page template was last modified "Tue Sep 7 00:00:02 2021" The Rockbox Crew -- Privacy Policy |