At 15:03 09/18/2005 -0700, Carl Lowenstein wrote: >On 9/18/05, m ike <[EMAIL PROTECTED]> wrote: >> > those leading offsets. ' printf "%d" 00010090 ' gives me "bash: >> >> >> looks like you left off the leading 0x >> >> -- >> [email protected] >> http://www.kernel-panic.org/cgi-bin/mailman/listinfo/kplug-list >> >There is too much stuff here to try to reply individually to a couple >of items. Besides that, Google gmail has been mostly down for me >during the past couple of days. So here are my $.02 worth of >comments. > >JFIF is the magic number that identifies JPEG files. > >There has been a faster, double-buffered, version of dd(1) that only >does data transfers and not any of the other features like ASCII <-> >EBCDIC, fixed line length <-> newline termination, etc. It was called >"ddd" as I remember. However someone has taken over that name for the >GUI iterface to GNU gdb and friends.
I've tried looking for this double-buffered ddd and haven't been able to find it. I would really like to get a copy so I can test it doing disk-to-disk backups (I dd the whole disk) to see if I get any performance improvement. Right now I get about 25MB/sec transfer rates, but I think it could probably go up to about 40MB/sec based on the advertised sustained data transfer rates for my drives. Maybe this is a project for the LPSG. Rewrite dd to have double-buffering. I'd be an interested observer, seeing as I'm not a C programmer. Gus "Pascal Rules!" Wirth -- [email protected] http://www.kernel-panic.org/cgi-bin/mailman/listinfo/kplug-list
