aic7xxx slowness on 2.6.13

aic7xxx slowness on 2.6.13

[Bhanu, Yogesh]

hi ,
       I  installed 2.6.13 over the weekend  on a dual Pentium Xeon 2.4 Ghz with 6 GB RAM (My fileserver) running Debian Sarge.
My fileserver uses external infrotrend raid . 
 
On switching to 2.6.13 I also switched from my older slower Symbios 53c895   to Adaptec 3960D
 
I have noticed when using the adaptec card my file server performs slower than the Symbios 
card.
 
As an example I tried to copy my Mail folder of 66.8 M  and this is what I see .
 
with symbios 53c895 
 
bash-2.05$ time cp -pa Mail Mail.mips
real     0m6.048s
user    0m0.007s
sys     0m0.295s
 
 
with adaptec 3960D
bash-2.05$ time cp -pa Mail Mail.mips
real     0m49.543s
user    0m0.000s
sys     0m0.044s
 
 
I wonder anybody is experiencing this . 
 
Thanks
yogesh

Re: aic7xxx slowness on 2.6.13

[Matthias Andree]

Bhanu, Yogesh wrote:
> hi ,
>        I  installed 2.6.13 over the weekend  on a dual Pentium Xeon 2.4 Ghz with 6 GB RAM (My fileserver) running Debian Sarge.
> My fileserver uses external infrotrend raid . 
>  
> On switching to 2.6.13 I also switched from my older slower Symbios 53c895   to Adaptec 3960D

Please compare the "dmesg" output of 2.6.13 and the kernel you'd been using
previously.

-- 
Matthias Andree

RE: aic7xxx slowness on 2.6.13

[Bhanu, Yogesh]

Hi Mathias ,
                   Sorry about this, I should have put this in first place .  Also these are two kernel versions .
I had big issues with adaptec drivers in kernel 2.6.11 and so I had switched to symbios card which I was using 
till the weekend.
 
hth
yogesh
 
 
Symbios kern messages  (kernel 2.6.12.2)
 sym0: <895> rev 0x2 at pci 0000:03:09.0 irq 27
 sym0: Symbios NVRAM, ID 15, Fast-40, LVD, parity checking
 sym0: open drain IRQ line driver, using on-chip SRAM
 sym0: using LOAD/STORE-based firmware.
 sym0: SCSI BUS has been reset.
 scsi1 : sym-2.2.0
   Vendor: ADVUNI    Model: OXYGENRAID 3000R  Rev: 327I
   Type:   Direct-Access                      ANSI SCSI revision: 04
  target1:0:1: tagged command queuing enabled, command queue depth 16.
  target1:0:1: Beginning Domain Validation
  target1:0:1: asynchronous.
 WIDTH IS 1
  1:0:1:0: ODD transfer in DATA IN phase.
  1:0:1:0: COMMAND FAILED (87 0 10).
  target1:0:1: Wide Transfers Fail
  target1:0:1: asynchronous.
  target1:0:1: Domain Validation skipping write tests
  target1:0:1: FAST-40 SCSI 40.0 MB/s ST (25 ns, offset 31)
  target1:0:1: Ending Domain Validation
 SCSI device sdb: 3148468224 512-byte hdwr sectors (1612016 MB)
 SCSI device sdb: drive cache: write through
 SCSI device sdb: 3148468224 512-byte hdwr sectors (1612016 MB)
 SCSI device sdb: drive cache: write through
  sdb: sdb1 sdb2 < sdb5 >
 Attached scsi disk sdb at scsi1, channel 0, id 1, lun 0
 Attached scsi generic sg2 at scsi1, channel 0, id 1, lun 0,  type 0
   Vendor: ADVUNI    Model: OXYGENRAID 3000R  Rev: 327I
   Type:   Direct-Access                      ANSI SCSI revision: 04
  target1:0:1: tagged command queuing enabled, command queue depth 16.
 SCSI device sdc: 2927063040 512-byte hdwr sectors (1498656 MB)
 SCSI device sdc: drive cache: write through
 SCSI device sdc: 2927063040 512-byte hdwr sectors (1498656 MB)
 SCSI device sdc: drive cache: write through
  sdc: sdc1 sdc2 sdc3 sdc4 < sdc5 sdc6 sdc7 sdc8 >
 Attached scsi disk sdc at scsi1, channel 0, id 1, lun 1
 Attached scsi generic sg3 at scsi1, channel 0, id 1, lun 1,  type 0
   Vendor: ADVUNI    Model: OXYGENRAID 3000R  Rev: 327I
   Type:   Direct-Access                      ANSI SCSI revision: 04
  target1:0:1: tagged command queuing enabled, command queue depth 16.
 SCSI device sdd: 585412608 512-byte hdwr sectors (299731 MB)
 SCSI device sdd: drive cache: write through
 SCSI device sdd: 585412608 512-byte hdwr sectors (299731 MB)
 SCSI device sdd: drive cache: write through
  sdd: sdd1

 
 
 
Adaptec kernel messages  (kernel 2.6.13)
ACPI: PCI Interrupt 0000:03:08.0[A] -> GSI 24 (level, low) -> IRQ 22

scsi2 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 6.2.36

        <Adaptec 3960D Ultra160 SCSI adapter>

        aic7899: Ultra160 Wide Channel A, SCSI Id=7, 32/253 SCBs

 

  Vendor: ADVUNI    Model: OXYGENRAID 3000R  Rev: 327I

  Type:   Direct-Access                      ANSI SCSI revision: 04

 target2:0:1: asynchronous.

scsi2:A:1:0: Tagged Queuing enabled.  Depth 2

 target2:0:1: Beginning Domain Validation

 target2:0:1: wide asynchronous.

 target2:0:1: Domain Validation skipping write tests

 target2:0:1: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62)

 target2:0:1: Ending Domain Validation

SCSI device sdb: 3148468224 512-byte hdwr sectors (1612016 MB)

SCSI device sdb: drive cache: write through

SCSI device sdb: 3148468224 512-byte hdwr sectors (1612016 MB)

SCSI device sdb: drive cache: write through

 sdb: sdb1 sdb2 < sdb5 >

Attached scsi disk sdb at scsi2, channel 0, id 1, lun 0

Attached scsi generic sg2 at scsi2, channel 0, id 1, lun 0,  type 0

  Vendor: ADVUNI    Model: OXYGENRAID 3000R  Rev: 327I

  Type:   Direct-Access                      ANSI SCSI revision: 04

scsi2:A:1:1: Tagged Queuing enabled.  Depth 2

SCSI device sdc: 2927063040 512-byte hdwr sectors (1498656 MB)

SCSI device sdc: drive cache: write through

SCSI device sdc: 2927063040 512-byte hdwr sectors (1498656 MB)

SCSI device sdc: drive cache: write through

 sdc: sdc1 sdc2 sdc3 sdc4 < sdc5 sdc6 sdc7 sdc8 >

Attached scsi disk sdc at scsi2, channel 0, id 1, lun 1

Attached scsi generic sg3 at scsi2, channel 0, id 1, lun 1,  type 0

  Vendor: ADVUNI    Model: OXYGENRAID 3000R  Rev: 327I

  Type:   Direct-Access                      ANSI SCSI revision: 04

scsi2:A:1:2: Tagged Queuing enabled.  Depth 2

SCSI device sdd: 585412608 512-byte hdwr sectors (299731 MB)

SCSI device sdd: drive cache: write through

SCSI device sdd: 585412608 512-byte hdwr sectors (299731 MB)

SCSI device sdd: drive cache: write through

 sdd: sdd1

Attached scsi disk sdd at scsi2, channel 0, id 1, lun 2

Attached scsi generic sg4 at scsi2, channel 0, id 1, lun 2,  type 0