[Please keep cc'ing me on follow-ups. Thanks.] Ged Haywood <[EMAIL PROTECTED]> writes:
> On Sat, 13 Dec 2003, Dan Christensen wrote: > >> I'm able to capture video from a videocamera over firewire and write it to >> the USB external hard drive without dropping any frames. >> [snip] >> I have to use ext2 and not ext3, but that's also true when I capture to my >> internal hard drive. Kernel 2.4.23, raw1394 driver, kino software > > I'm interested that you find you have to use ext2 not ext3 - why is that? With ext3 I consistently get dropped frames every few seconds with both my internal IDE and external USB hard disks. Dell Inspiron 4150 with a mobile 2GHz P4. I did some experimenting with my internal drive. I tried: 1) dv1394 and raw1394 modules 2) larger buffer in kino 3) renice kino to -15 4) while true; do sleep 1; sync; done The first two made no noticeable difference. 3) helped a fair bit. And 4) helped a lot. But even combining these, I still got occasional dropped frames. I googled and found that many people were reporting dropped frames, and I noticed that most of them were using ext3. So I used "tune2fs -O ^has_journal /dev/hdax" to switch to ext2, and my problems went away completely. No need for 3) or 4). Dan ------------------------------------------------------- This SF.net email is sponsored by: IBM Linux Tutorials. Become an expert in LINUX or just sharpen your skills. Sign up for IBM's Free Linux Tutorials. Learn everything from the bash shell to sys admin. Click now! http://ads.osdn.com/?ad_id=1278&alloc_id=3371&op=click _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
