Re: MMC quirks relating to performance/lifetime.

2011-02-19 Thread Andrei Warkentin
On Sat, Feb 19, 2011 at 5:20 AM, Arnd Bergmann wrote: > On Saturday 19 February 2011 00:17:51 Andrei Warkentin wrote: >> # echo 0 > /sys/block/mmcblk0/device/page_size >> # ./flashbench -A -b 1024 /dev/block/mmcblk0p9 >> write align 8388608     pre 3.59ms      on 6.54ms       post 3.65ms     diff

Re: MMC quirks relating to performance/lifetime.

2011-02-19 Thread Andrei Warkentin
On Sat, Feb 19, 2011 at 3:54 AM, Arnd Bergmann wrote: > On Friday 18 February 2011 23:40:16 Andrei Warkentin wrote: >> On Fri, Feb 18, 2011 at 1:47 PM, Andrei Warkentin >> wrote: >> >> Flashbench timings for both Sandisk and Toshiba cards. Attaching due to size. > > Very nice, thanks for the mea

Re: [RFC] MMC: error handling improvements

2011-02-19 Thread Russell King - ARM Linux
On Tue, Feb 15, 2011 at 03:49:04PM -0800, David Brown wrote: > On Tue, Feb 15 2011, Russell King - ARM Linux wrote: > > > This patch is for RFC only; it needs splitting up somewhat. However, I > > wanted to get it out there for some comment. > > Just for kicks, I applied this and ran it on an MS

Re: MMC quirks relating to performance/lifetime.

2011-02-19 Thread Arnd Bergmann
On Saturday 19 February 2011 00:17:51 Andrei Warkentin wrote: > # echo 0 > /sys/block/mmcblk0/device/page_size > # ./flashbench -A -b 1024 /dev/block/mmcblk0p9 > write align 8388608 pre 3.59ms on 6.54ms post 3.65ms diff > 2.92ms > write align 4194304 pre 4.13ms on 7.37m

Re: MMC quirks relating to performance/lifetime.

2011-02-19 Thread Arnd Bergmann
On Friday 18 February 2011 23:40:16 Andrei Warkentin wrote: > On Fri, Feb 18, 2011 at 1:47 PM, Andrei Warkentin > wrote: > > Flashbench timings for both Sandisk and Toshiba cards. Attaching due to size. Very nice, thanks for the measurement! I don't think having the results inline in the mail i