low breezy hard disk performances

[Lee Willis]

I'm also seeing slow disk access. After upgrade I thought it was
evolution that was being slow - however it does seem to be a general
disk access issue.

I get consistently good results in runlevel 1, but in standard
multi-user mode I get inconsistent speeds, and always lower than the
"init 1" versions:

Results while in init 1:
------------------------

/dev/hda:
 Timing cached reads:   1340 MB in  2.01 seconds = 668.10 MB/sec
 Timing buffered disk reads:  138 MB in  3.01 seconds =  45.78 MB/sec

/dev/hda:
 Timing cached reads:   1332 MB in  2.00 seconds = 665.77 MB/sec
 Timing buffered disk reads:  138 MB in  3.01 seconds =  45.85 MB/sec

/dev/hda:
 Timing cached reads:   1344 MB in  2.00 seconds = 671.10 MB/sec
 Timing buffered disk reads:  138 MB in  3.01 seconds =  45.90 MB/sec

/dev/hda:
 Timing cached reads:   1336 MB in  2.00 seconds = 667.10 MB/sec
 Timing buffered disk reads:  138 MB in  3.01 seconds =  45.88 MB/sec



Results in multi-user mode (Standard graphical shell)
-----------------------------------------------------
/dev/hda:
 Timing cached reads:   1028 MB in  2.01 seconds = 512.29 MB/sec
 Timing buffered disk reads:   18 MB in  3.38 seconds =   5.33 MB/sec

/dev/hda:
 Timing cached reads:   1008 MB in  2.01 seconds = 502.32 MB/sec
 Timing buffered disk reads:   44 MB in  3.06 seconds =  14.37 MB/sec

/dev/hda:
 Timing cached reads:   1016 MB in  2.00 seconds = 507.82 MB/sec
 Timing buffered disk reads:   30 MB in  3.83 seconds =   7.83 MB/sec

/dev/hda:
 Timing cached reads:   1016 MB in  2.00 seconds = 506.81 MB/sec
 Timing buffered disk reads:   54 MB in  3.07 seconds =  17.56 MB/sec


hdparm info for my drive
-------------------------

/dev/hda:

 Model=Maxtor 2F040L0, FwRev=VAM51JJ0, SerialNo=F137NAVE
 Config={ Fixed }
 RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=57
 BuffType=DualPortCache, BuffSize=2048kB, MaxMultSect=16, MultSect=16
 CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=80293248
 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
 UDMA modes: udma0 udma1 udma2 udma3 udma4 *udma5 udma6
 AdvancedPM=yes: disabled (255) WriteCache=enabled
 Drive conforms to: (null):


Does anyone know of an open bug that this should be logged against?

Lee