Re: [Sugar-devel] XO-1 vs Sugar 0.104 performance, and swap to NAND Flash
On 07/04/15 22:47, James Cameron wrote: The testing scripts can be made available if anybody else would like to replicate the results. I'd be curious to look at your scripts and try to replicate some results with our builds. git clone git://dev.laptop.org/users/quozl/test-startup-time.git Look at the file HOWTO. Somewhat unfinished work. Do ask any questions you may have. Thanks a lot for your detailed tests! No worries. Interesting details! I'd be interested to see if porting Browse to the newer webkit 2 and what effect the perf improvements there would offer ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: [Sugar-devel] XO-1 vs Sugar 0.104 performance, and swap to NAND Flash
On 07/04/15 22:47, James Cameron wrote: The testing scripts can be made available if anybody else would like to replicate the results. I'd be curious to look at your scripts and try to replicate some results with our builds. Thanks a lot for your detailed tests! Sebastian ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: [Sugar-devel] XO-1 vs Sugar 0.104 performance, and swap to NAND Flash
On Tue, Apr 07, 2015 at 11:32:00PM -0500, Sebastian Silva wrote: On 07/04/15 22:47, James Cameron wrote: The testing scripts can be made available if anybody else would like to replicate the results. I'd be curious to look at your scripts and try to replicate some results with our builds. git clone git://dev.laptop.org/users/quozl/test-startup-time.git Look at the file HOWTO. Somewhat unfinished work. Do ask any questions you may have. Thanks a lot for your detailed tests! No worries. -- James Cameron http://quozl.linux.org.au/ ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: [Sugar-devel] XO-1 vs Sugar 0.104 performance, and swap to NAND Flash
SHC8420412 = 332S On Thu, Apr 2, 2015 at 12:54 AM, James Cameron qu...@laptop.org wrote: With Sugar 0.98 in 13.2.1, the XO-1 was so short of memory that adding swap gave an obvious benefit. Thanks to those who have verified this for us. With Sugar 0.104 in 13.2.4, things seem much better on the XO-1, thanks to all the work done by Sugar Labs developers. But I'm not finished testing [1]. Meanwhile, there's an opportunity to add swap to jffs2 filesystem. The XO-1 NAND Flash is rated for 100,000 writes per cell. The jffs2 filesystem we use spreads the writes across all the cells. There's a risk that swapping to the NAND Flash will shorten the life of an XO-1. It may become slower at reading and writing journal entries. But they might already be so slow that this isn't a problem any more. What I need is some data from XO-1 that have been used a lot: how long does it take to reflash? To test, surround a copy-nand command with timing markers, like this: ok t-sec( copy-nand u:\32014o0.img )t-sec The result will be on the line above the ok prompt when it is done, e.g. 403S, which is 403 seconds. Send me the serial number, file name, and time in seconds. Notes: 1. free memory with no activities running is up around the 40 MB mark. Browse running leaves 16 MB free. Activity startup time is much reduced, and reduced still further when the pulsing icon animation is switched from 10 times a second to twice a second. The animation is stealing resources! On the other hand, the spinning cursor during startup or in Browse consumes no significant resources. http://dev.laptop.org/~quozl/z/1YdW4T.txt shows the change. -- James Cameron http://quozl.linux.org.au/ ___ Sugar-devel mailing list sugar-de...@lists.sugarlabs.org http://lists.sugarlabs.org/listinfo/sugar-devel -- Gonzalo Odiard SugarLabs - Software for children learning ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: [Sugar-devel] XO-1 vs Sugar 0.104 performance, and swap to NAND Flash
Activity startup time is much reduced, and reduced still further when the pulsing icon animation is switched from 10 times a second to twice a second. The animation is stealing resources! On the other hand, the spinning cursor during startup or in Browse consumes no significant resources. http://dev.laptop.org/~quozl/z/1YdW4T.txt shows the change. Hmm, good catch, I will try with different numbers. Gonzalo -- James Cameron http://quozl.linux.org.au/ ___ Sugar-devel mailing list sugar-de...@lists.sugarlabs.org http://lists.sugarlabs.org/listinfo/sugar-devel -- Gonzalo Odiard SugarLabs - Software for children learning ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
