Martin Samuelsson <[EMAIL PROTECTED]> writes:
> What does hdparm -i on the relevant disk say? ...assuming you're using
> ATA, that is...
# hdparm -i /dev/hda
/dev/hda:
Model=MAXTOR 6L040J2, FwRev=A93.0500, SerialNo=662132710203
Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
RawCHS=16383/16/63, TrkSize=32256, SectSize=21298, ECCbytes=4
BuffType=DualPortCache, BuffSize=1819kB, MaxMultSect=16, MultSect=16
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=78177792
IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio1 pio2 pio3 pio4
DMA modes: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 *udma5 udma6
Drive Supports : Reserved : ATA-1 ATA-2 ATA-3 ATA-4 ATA-5
Kernel Drive Geometry LogicalCHS=4866/255/63 PhysicalCHS=77557/16/63
# hdparm -i /dev/hdc
/dev/hdc:
Model=MAXTOR 6L040J2, FwRev=A93.0500, SerialNo=662132710360
Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
RawCHS=16383/16/63, TrkSize=32256, SectSize=21298, ECCbytes=4
BuffType=DualPortCache, BuffSize=1819kB, MaxMultSect=16, MultSect=16
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=78177792
IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio1 pio2 pio3 pio4
DMA modes: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 *udma5 udma6
Drive Supports : Reserved : ATA-1 ATA-2 ATA-3 ATA-4 ATA-5
Kernel Drive Geometry LogicalCHS=4866/255/63 PhysicalCHS=77557/16/63
A 30GB partition from each drive is striped together as /dev/md0, and
there are no other drives on this Promise ATA-100 controller. The
machine's CDR drive is on the motherboard's onboard ATA-33 controller.
# bonnie -s 512 (in a /dev/md0 directory)
Bonnie 1.2: File './Bonnie.9702', size: 536870912, volumes: 1
Writing with putc()... done: 2563 kB/s 85.5 %CPU
Rewriting... done: 10578 kB/s 52.9 %CPU
Writing intelligently... done: 9314 kB/s 61.8 %CPU
Reading with getc()... done: 2121 kB/s 78.2 %CPU
Reading intelligently... done: 21593 kB/s 69.4 %CPU
Seeker 1...Seeker 2...Seeker 3...start 'em...done...done...done...
---Sequential Output (nosync)--- ---Sequential Input-- --Rnd Seek-
-Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --04k (03)-
Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU
galad 1* 512 2563 85.5 9314 61.8 10578 52.9 2121 78.2 21593 69.4 245.1 12.6
(The machine has 384MB of RAM, so a 512MB test should be adequate to
eliminate cache effects.) The machine (dual P2/266) was also ripping
CDs, encoding OGGs, and playing (different) OGGs while I was testing. I
generally capture with -d2 and -q50, and with nothing else going on, so
I shouldn't be getting anywhere near the write transfer limit.
Brian.
-------------------------------------------------------
This SF.NET email is sponsored by:
SourceForge Enterprise Edition + IBM + LinuxWorld = Something 2 See!
http://www.vasoftware.com
_______________________________________________
Mjpeg-users mailing list
[EMAIL PROTECTED]
https://lists.sourceforge.net/lists/listinfo/mjpeg-users
