Rockbox.org home
release
dev builds
extras
themes manual
wiki
device status forums
mailing lists
IRC bugs
patches
dev guide



Rockbox mail archive

Subject: Re: My vote for BMP cache removal

Re: My vote for BMP cache removal

From: Linus Nielsen Feltzing <linus_at_haxx.se>
Date: 2006-02-01

> There seems to be an additional area for gaining performance -
> it was reported that WPS loading on iPod is way faster than on
> iriver. The CPU speed is similar, so I can only imagine 2
> possible causes: (1) The iriver ATA driver needs optimising. (2)
> The endian swap in fat.c.

My measurements show that the current ATA driver gives us roughly
5.2Mbytes/s transfers at 124Mhz. A simple asm optimization gave
7.8Mbytes/s for burst-aligned transfers.

Linus
Received on Wed Feb 1 08:57:15 2006


Page was last modified "Jan 10 2012" The Rockbox Crew
aaa