Hi, On Thu, Apr 21 2011, Andrei Warkentin wrote: >>> Can you give me the manufacturing date? This is pretty interesting. >>> >>> You can see an improvement even if you do something like time block >>> writes (O_DIRECT | O_SYNC, of course). But after all synthetic tests I >>> measured the time it took to do 40000 SQLite insertions and saw >>> something like 30% improvement. >>> >> >> And you're trying this on SDHCI I presume, right? > > Is this on the same board as the other log you sent? Controller is > SDHCI-PXA? If you give me /sys/block/mmcblk0/device/date, > I'll investigate why this improvement isn't helping you out. Yeah, sdhci-pxa: [root@localhost olpc]# cat /sys/block/mmcblk0/device/date 10/2010 Want to give me a benchmark script so that we can compare speeds directly? Thanks, - Chris. -- Chris Ball <cjb@xxxxxxxxxx> <http://printf.net/> One Laptop Per Child -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
