[NTLUG:Discuss] More info for NForce2 xfer speed issue.....thanks for the help

[./aal]

./aal wrote:

>
> > every file I copy from cd to hdd or from hdd to hdd(same or different
> > channel) the speed starts at full speed and immediately drops to 30KB/s
> > or so and even stalls at times.
> >
> >
> > Mandriva 10.2
> > 2.6.11-mdk
> > /dev/hda ... WD1600JB-00GVA0
> > /dev/hdb ... WD200BB-00AUA1
> > /dev/hdc ... SONY CD-RW CRX230E
> > /dev/hdd ... WD102AA
> >
> > ABIT NF7-s v2
> >
> > all drives show dma and 32bit and proper setting for MaxSecTrans
> >
> >
> >
> > what do you think?
>
>
> ******************
> # cat /proc/interrupts
>           CPU0
>  0:     213596          XT-PIC  timer
>  1:         73          XT-PIC  i8042
>  2:          0          XT-PIC  cascade
>  3:      11325          XT-PIC  ohci_hcd
>  5:      10287          XT-PIC  ohci_hcd, radeon at pci:0000:02:00.0
>  8:          1          XT-PIC  rtc
> 10:      18469          XT-PIC  ehci_hcd, eth0
> 11:       6885          XT-PIC  NVidia nForce2
> 12:       8172          XT-PIC  i8042
> 14:      11219          XT-PIC  ide0
> 15:       1655          XT-PIC  ide1
> NMI:          0
> LOC:     213528
> ERR:        276
> MIS:          0
>
> #lsmod
> Module                  Size  Used by
> radeon                 74464  1
> drm                    58388  2 radeon
> md5                     3648  1
> ipv6                  232320  16
> autofs4                15268  0
> snd-seq-dummy           2596  0
> snd-seq-oss            31584  0
> snd-seq-midi-event      6208  1 snd-seq-oss
> snd-seq                47472  5 
> snd-seq-dummy,snd-seq-oss,snd-seq-midi-event
> snd-seq-device          6796  3 snd-seq-dummy,snd-seq-oss,snd-seq
> snd-pcm-oss            49056  0
> snd-mixer-oss          17248  1 snd-pcm-oss
> snd-intel8x0           29216  1
> snd-ac97-codec         75256  1 snd-intel8x0
> snd-pcm                80776  3 snd-pcm-oss,snd-intel8x0,snd-ac97-codec
> snd-timer              20324  2 snd-seq,snd-pcm
> snd-page-alloc          7588  2 snd-intel8x0,snd-pcm
> snd                    46980  11 
> snd-seq-oss,snd-seq,snd-seq-device,snd-pcm-oss,snd-mixer-oss,snd-intel8x0,snd-ac97-codec,snd-pcm,snd-timer 
>
> soundcore               7104  1 snd
> lp                      9864  0
> parport_pc             31652  1
> parport                31624  2 lp,parport_pc
> af_packet              16232  2
> floppy                 54736  0
> forcedeth              16096  0
> ide-cd                 36772  0
> loop                   13544  0
> ntfs                  205368  2
> nls_iso8859-1           3744  3
> nls_cp850               4544  1
> vfat                   11200  1
> fat                    35964  1 vfat
> supermount             32660  1
> ext3                  123976  2
> jbd                    48664  1 ext3
> nvidia-agp              5852  1
> agpgart                28264  2 drm,nvidia-agp
> ovcamchip              21832  0
> w9968cf                74144  0
> videodev                7264  1 w9968cf
> i2c-core               19028  2 ovcamchip,w9968cf
> ehci-hcd               28648  0
> ohci-hcd               19112  0
> usbcore               106008  4 w9968cf,ehci-hcd,ohci-hcd
> reiserfs              261012  3
> ************************************************
>
> Yes 80pin cable for both channels
>
> ****************************
> jumpers are right
>
> *************
> 450W PSU
> *************


I have removed hdc and hdd as well as setting to 'none' in bios.

hda -> hdb  around 80KB/s  (file copied = 512MB tarball)
-------------------------------------------------------------------------
[root at localhost Desktop]# hdparm -t /dev/hda

/dev/hda:
Timing buffered disk reads:  172 MB in  3.00 seconds =  57.32 MB/sec
[root at localhost Desktop]# hdparm -t /dev/hdb

/dev/hdb:
Timing buffered disk reads:   80 MB in  3.06 seconds =  26.14 MB/sec

------------------------------------------------------------------------------- 


[root at localhost Desktop]# hdparm -T /dev/hda

/dev/hda:
Timing cached reads:   1468 MB in  2.01 seconds = 731.92 MB/sec
[root at localhost Desktop]# hdparm -T /dev/hdb

/dev/hdb:
Timing cached reads:   1316 MB in  2.00 seconds = 657.44 MB/sec
----------------------------------------------------------------------------------- 



I am at a loss for things to try now