> On, 2008-07-18 kello 15:14 -0500, Hans L kirjoitti: >> On Fri, Jul 18, 2008 at 2:26 PM, Andrew Burgess <[EMAIL PROTECTED]> wrote:
>> Can the Freerunner make use of the class 6 speed? >> If not I'll go for the max size. > According to http://en.wikipedia.org/wiki/Secure_Digital_card#SDHC > Class 4 supports a minimum write speed of 4MB/s, and 6MB/s for class 6. Correct and sorry for not defining my terms > Not sure how fast the Freerunner is capable of writing though. That's my real question > According to raster the glamo (which is also the SD card > controller) bus speed is "7.3m/s" (I presume from context he > means megabytes). This with the cpu doing nothing else > besides transferring data to or from the card; thus in > practice I don't think the class 4/6 distinction is going to > matter much on the FR. I would go for the size (and did, > with my 8 GB I saw a post (here?) about the performance of different filesystems and I recall seeing flash performance numbers of 9MB/s. Maybe that was read speed but 9 > 7... > But, I haven't experimented with the different classes, so grains of salt OK, I'll volunteer. I just ordered a 4GB class 6 and an 8GB class 4 from Newegg, both Transcend brand. I'll post results next week. Also, there were some wait state tweaks posted on the kernel list to speedup glamo access. They were /sys controllable so I'll throw them into the mix. My little contribution :-) Andrew Burgess _______________________________________________ Openmoko community mailing list [email protected] http://lists.openmoko.org/mailman/listinfo/community
