Hello, I am using an up to date debian/sid with kernel 2.6.14-2-k7 (if it is running) or (currently) 2.6.12-k7. When writing to an DVD-RAM using a internal IDE NEC-4550 Device data is written with only 600-880 KByte/s where it should be 2 MByte/s (with an 3x DVD-Ram from Panasonic).
I have tried several block sizes and got the following rates: mkudffs -b 1024 -r 0x0201 --media-type=dvdram /dev/hdc => 883 KByte/s mkudffs -r 0x0201 --media-type=dvdram /dev/hdc => 724 KByte/s (Blocksize is 2048 per default) mkudffs -b 4096 -r 0x0201 --media-type=dvdram /dev/hdc => 614 KByte/s Using tar to directly write to the device was faster when using a blocksize of 4096 (=> 1766 KByte/s). Astonishing with a blocksize of 2048 (what I thought would be optimal) it is slower (1046 KByte/s) but still faster than UDF. Does anybody know where might be the problem? I have read that a performance problem came with kernel 2.6.7. Is this true? Are there any patches to speed up DVD-Ram writing with current kernels? Thanks, Gert -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
