20 Nov
2008
20 Nov
'08
4:01 a.m.
Lee Revell wrote:
What format are the tracks in? 16 bit, 44.1Khz is
0.7MB/sec per track
which any drive
should be able to handle 10 tracks of. But with 96Khz and 24 or 32
bit samples, you
could be pushing the limits of the drive.
It's 16 bits, 44khz
What does running hdparm -Tt on the block device
(/dev/sdX) give you?
atte@vestbjerg:~$ sudo hdparm -Tt /dev/sda
/dev/sda:
Timing cached reads: 1862 MB in 2.00 seconds = 931.56 MB/sec
Timing buffered disk reads: 142 MB in 3.00 seconds = 47.29 MB/sec
How does that sound?
Realtime tuning should not matter because with any
sanely written DAW the disk
IO will be done in it's own non-RT thread.
Ok
I experimented further, and it's not only the number of audio tracks
that seems to be the problem. Other cpu intensive stuff like soft synths
and fx bring the cup usage up. But I still feel that many audio tracks
take more cpu than they're supposed to.
--
Atte
http://atte.dk http://modlys.dk