[mythtv] Simple player
Tue, 10 Dec 2002 21:14:54 +0100
> Van: Chris Liscio <email@example.com>
> > Depends on the speed of the drive. 15MB/sec isn't bad. Probably pretty
> > common. If you are getting 30MB/sec, what kind of drive do you have!? I
> > couldn't get anywhere near that that with my 10k RPM IBM ultra wide
> > disk.
What you call 'not bad'. My old P100, with newer Fujitsu MPE3064AT (6,3GB)
does half of that...
30MB/sec buffer-cache reads
~7MB/s buffered disk reads
The first number (although 'useless') is pretty wierd anyway, since my
motherboard booklet says "Using HDDs that support bus mastering, the peck
transfer rate can reach 22MB/sec". But that's about PIO3/4, I guess DMA
helps to speedup things when reading from the HD-cache.
> peanut:~/mythtv/MC# hdparm -Tt /dev/hda
> Timing buffer-cache reads: 128 MB in 0.65 seconds =196.92 MB/sec
> Timing buffered disk reads: 64 MB in 1.58 seconds = 40.51 MB/sec
My new PC gives much the same results.
Henk Poley <><