Re: AW: slow read performance off the SDcard

Same problem here and it worse when using a wireless card.
This problem has been present for some time.

>>>>> "Daniel" == Daniel Stengel <dstengel_at_uni-mannheim.de> writes:

 Daniel> Same for me here and MMC cards FTP-Download to the card is
 Daniel> about 6 to 8 kBs only...

 Daniel> -----Ursprüngliche Nachricht----- Von:
 Daniel> familiar-bounces_at_handhelds.org
 Daniel> [mailto:familiar-bounces_at_handhelds.org] Im Auftrag von
 Daniel> Michael Kropfberger Gesendet: Freitag, 15. Juli 2005 19:20
 Daniel> An: familiar_at_handhelds.org Betreff: [Familiar] slow read
 Daniel> performance off the SDcard

 Daniel> hi everybody,

 Daniel> I'm using a H5550, kernel 2.4.19-rmk6-pxa1-hh40,
 Daniel> familiar-0.8.3 (self-built)

 Daniel> I'm playing video off a SDcard and the read performance is
 Daniel> bad so it leads to jitter.... when I've played (read) it
 Daniel> once, and the kernel cached the data blocks internally, the
 Daniel> second run-through (read) is fast enough.

 Daniel> I've tried this with the following SD-cards: kingston 512MB,
 Daniel> Hama high speed

 Daniel> and with the file systems fat and ext2 (ext2 is way too slow
 Daniel> in comparison to fat :(

 Daniel> interestingly, the Hama high speed card is really faster in
 Daniel> write access, but seems to be the same in read access....

 Daniel> any ideas how to speed up read performance of any arbitrary
 Daniel> SD-card?

 Daniel> thanks,

 Daniel> Mike _______________________________________________ The
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Received on Fri Jul 15 2005 - 19:59:27 EDT