Peter, The issue you mentioned w.r.t SD card performance will be resolved with a new patch. The patch is still under testing and you can contact your local TI Engineer for the date when it will be available for customers. Another approach could be that you could take patch45 from the DM6446 update site at MV and apply to your kernel for DM355. This patch is currently available for DM6446 only and you might need to do some small porting effort to get it on DM355 kernel. With this you should be able to see considerable performance increase. regards swami
________________________________ From: [EMAIL PROTECTED] on behalf of Peter Sommerfeld Sent: Thu 4/24/2008 12:22 AM To: [email protected] Subject: DM355: Unacceptable SD card write performance Hi, I've been doing some testing with SD card writes on the DM355 devkit. The performance is dismal. I am using a kernel retrieved from TI's site on Apr 20/08. I built the kernel with the only change to the config being the inclusion of the resizer driver. On Windows Vista, my 150x 2GB SD card gets a write speed of > 4 GB/s over a 128 MB file. On the embedded system my write speed is 135 kB/s - an unbelievable 3%!! Has anyone looked at the SD driver and/or SD interface? I was not planning on touching this driver, never mind having to rewrite big chunks of it :( Peter _______________________________________________ Davinci-linux-open-source mailing list [email protected] http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
_______________________________________________ Davinci-linux-open-source mailing list [email protected] http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
