Dear Uma Shankar,
In message 20120809215050.89DE220401A@gemini.denx.de I wrote:
Applied to "ext4" branch, thanks.
I did some performance tests on a MPC5200 based board using the IDE interface (no DMA):
=> vers
U-Boot 2012.07-00125-ged34f34 (Aug 10 2012 - 09:36:33) powerpc-linux-gcc (GCC) 4.6.4 20120303 (prerelease) GNU ld (GNU Binutils) 2.22 => date ; ext2load ide 0:4 100000 usr-bin.tar 2000000 ; date Date: 2012-08-10 (Saturday) Time: 16:27:21 Loading file "usr-bin.tar" from ide device 0:4 hda4 33554432 bytes read Date: 2012-08-10 (Saturday) Time: 16:27:48
=================================================
27 seconds => 1.2 MiB/s
=> vers
U-Boot 2012.07 (Aug 02 2012 - 10:31:44) powerpc-linux-gcc (GCC) 4.6.4 20120303 (prerelease) GNU ld (GNU Binutils) 2.22 => date ; ext2load ide 0:4 100000 usr-bin.tar 2000000 ; date Date: 2012-08-10 (Saturday) Time: 16:49:31 Loading file "usr-bin.tar" from ide device 0:4 (hda4) 33554432 bytes read Date: 2012-08-10 (Saturday) Time: 16:49:57
=================================================
26 seconds => 1.2 MiB/s
So within the accuracy of this measurement,the performance of the new code compared to the old ext2 code appears to be pretty much the same.
Tested-by: Wolfgang Denk wd@denx.de
Best regards,
Wolfgang Denk