Hi,
I've asked this question in several Newsgroups but nobody was really
able to answer it. That's why I decided to send it to LKM. Please CC
me on your replies. Thanks!
I've got a question related to ide performance.
First of all my hardware:
Mainboard: ASUS P4PE (using onboard IDE but not S-ATA)
http://www.asus.com/products/mb/socket478/p4pe/overview.htm
Harddisk: Western Digital WD800JB
http://www.westerndigital.com/products/products.asp?DriveID=32
Now about the current performance (on 2.4.20 and almost the same on 2.5.56):
tom@storm:~$ sudo hdparm -tT /dev/hda
/dev/hda:
Timing buffer-cache reads: 128 MB in 0.27 seconds =474.07 MB/sec
Timing buffered disk reads: 64 MB in 3.05 seconds = 20.98 MB/sec
The cache read time is pretty ok but the disk read time is below of
what I'd have expected. My expectations would have been around 40MB/sec.
Am I wrong with my expectations for this setup?
I'd really be interested in any suggestion about how I could omptimize
the system.
And here's some more information about the current settings (let me
know if you need anything else):
tom@storm:~$ sudo hdparm /dev/hda
/dev/hda:
multcount = 16 (on)
I/O support = 3 (32-bit w/sync)
unmaskirq = 1 (on)
using_dma = 1 (on)
keepsettings = 0 (off)
nowerr = 0 (off)
readonly = 0 (off)
readahead = 255 (on)
geometry = 9729/255/63, sectors = 156301488, start = 0
busstate = 1 (on)
tom@storm:~$ sudo cat /proc/ide/hda/settings
name value min max mode
---- ----- --- --- ----
acoustic 0 0 254 rw
address 0 0 2 rw
bios_cyl 9729 0 65535 rw
bios_head 255 0 255 rw
bios_sect 63 0 63 rw
breada_readahead 255 0 255 rw
bswap 0 0 1 r
current_speed 69 0 69 rw
failures 0 0 65535 rw
file_readahead 16384 0 16384 rw
ide_scsi 0 0 1 rw
init_speed 69 0 69 rw
io_32bit 3 0 3 rw
keepsettings 0 0 1 rw
lun 0 0 7 rw
max_failures 1 0 65535 rw
max_kb_per_request 255 1 255 rw
multcount 16 0 16 rw
nice1 1 0 1 rw
nowerr 0 0 1 rw
number 0 0 3 rw
pio_mode write-only 0 255 w
slow 0 0 1 rw
unmaskirq 1 0 1 rw
using_dma 1 0 1 rw
wcache 0 0 1 rw
tom@storm:~$ sudo hdparm -I /dev/hda
/dev/hda:
non-removable ATA device, with non-removable media
Model Number: WDC WD800JB-00CRA1
Serial Number: WD-WMA8E3710419
Firmware Revision: 17.07W17
Standards:
Supported: 1 2 3 4 5
Likely used: 5
Configuration:
Logical max current
cylinders 16383 16383
heads 16 16
sectors/track 63 63
bytes/track: 57600 (obsolete)
bytes/sector: 600 (obsolete)
current sector capacity: 16514064
LBA user addressable sectors = 156301488
Capabilities:
LBA, IORDY(can be disabled)
Buffer size: 8192.0kB ECC bytes: 40 Queue depth: 1
Standby timer values: spec'd by standard, with device specific minimum
r/w multiple sector transfer: Max = 16 Current = 16
DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 *udma5
Cycle time: min=120ns recommended=120ns
PIO: pio0 pio1 pio2 pio3 pio4
Cycle time: no flow control=120ns IORDY flow control=120ns
Commands/features:
Enabled Supported:
* READ BUFFER cmd
* WRITE BUFFER cmd
* Host Protected Area feature set
* look-ahead
* write cache
* Power Management feature set
Security Mode feature set
SMART feature set
SET MAX security extension
* DOWNLOAD MICROCODE cmd
Security:
supported
not enabled
not locked
not frozen
not expired: security count
not supported: enhanced erase
HW reset results:
CBLID- above Vih
Device num = 0 determined by the jumper
Checksum: correct
A full dmesg dump can be found at http://www.wnk.at/files/dmesg.txt
Thanks very much,
--
Tom Winkler
Tom Winkler wrote:
>Hi,
>
>I've asked this question in several Newsgroups but nobody was really
>able to answer it. That's why I decided to send it to LKM. Please CC
>me on your replies. Thanks!
>
>I've got a question related to ide performance.
>First of all my hardware:
>Mainboard: ASUS P4PE (using onboard IDE but not S-ATA)
> http://www.asus.com/products/mb/socket478/p4pe/overview.htm
>Harddisk: Western Digital WD800JB
> http://www.westerndigital.com/products/products.asp?DriveID=32
>
Well I have the same P4PE and here are mine:
hdparm -I /dev/hda
/dev/hda:
ATA device, with non-removable media
Model Number: WDC WD300BB-00AUA1
Serial Number: WD-WMA6W2128969
Firmware Revision: 18.20D18
Standards:
Supported: 5 4 3 2
Likely used: 6
Configuration:
Logical max current
cylinders 16383 16383
heads 16 16
sectors/track 63 63
--
CHS current addressable sectors: 16514064
LBA user addressable sectors: 58633344
device size with M = 1024*1024: 28629 MBytes
device size with M = 1000*1000: 30020 MBytes (30 GB)
Capabilities:
LBA, IORDY(can be disabled)
bytes avail on r/w long: 40 Queue depth: 1
Standby timer values: spec'd by Standard, with device specific
minimum
R/W multiple sector transfer: Max = 16 Current = 16
Recommended acoustic management value: 128, current value: 254
DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 *udma5
Cycle time: min=120ns recommended=120ns
PIO: pio0 pio1 pio2 pio3 pio4
Cycle time: no flow control=120ns IORDY flow control=120ns
Commands/features:
Enabled Supported:
* READ BUFFER cmd
* WRITE BUFFER cmd
* Host Protected Area feature set
* Look-ahead
* Write cache
* Power Management feature set
Security Mode feature set
SMART feature set
Automatic Acoustic Management feature set
SET MAX security extension
* DOWNLOAD MICROCODE cmd
Security:
supported
not enabled
not locked
not frozen
not expired: security count
not supported: enhanced erase
HW reset results:
CBLID- above Vih
Device num = 0 determined by the jumper
-------------------------------------------------------------------------------------------
hdparm -tT /dev/hda
/dev/hda:
Timing buffer-cache reads: 128 MB in 0.35 seconds =365.71 MB/sec
Timing buffered disk reads: 64 MB in 2.00 seconds = 32.00 MB/sec
------------------------------------------------------------------------------------------
cat /proc/ide/hda/settings
name value min
max mode
---- ----- ---
--- ----
acoustic 0 0
254 rw
address 0 0
2 rw
bios_cyl 3649 0 65535 rw
bios_head 255 0
255 rw
bios_sect 63 0
63 rw
breada_readahead 8 0 255 rw
bswap 0 0
1 r
current_speed 69 0
70 rw
failures 0 0
65535 rw
file_readahead 124 0 16384 rw
init_speed 69 0
70 rw
io_32bit 0 0
3 rw
keepsettings 0 0
1 rw
lun 0 0
7 rw
max_failures 1 0 65535 rw
max_kb_per_request 128 1 255 rw
multcount 16 0
16 rw
nice1 1 0
1 rw
nowerr 0 0
1 rw
number 0 0
3 rw
pio_mode write-only 0 255 w
slow 0 0
1 rw
unmaskirq 0 0
1 rw
using_dma 1 0
1 rw
wcache 0 0
1 rw
On Sun, 26 Jan 2003, Tom Winkler wrote:
> The cache read time is pretty ok but the disk read time is below of
> what I'd have expected. My expectations would have been around 40MB/sec.
Indeed, I've got old Maxtor D740X-6L's that score in this range, even on
old hardware.
What does 2.4.20 do for you, compared to the 2.4.20pre7 you are running?
Mike
On Sun, 26 Jan 2003, Tom Winkler wrote:
> I've asked this question in several Newsgroups but nobody was really
> able to answer it. That's why I decided to send it to LKM. Please CC
> me on your replies. Thanks!
>
> I've got a question related to ide performance.
> First of all my hardware:
> Mainboard: ASUS P4PE (using onboard IDE but not S-ATA)
> http://www.asus.com/products/mb/socket478/p4pe/overview.htm
> Harddisk: Western Digital WD800JB
> http://www.westerndigital.com/products/products.asp?DriveID=32
>
>
> Now about the current performance (on 2.4.20 and almost the same on 2.5.56):
>
> tom@storm:~$ sudo hdparm -tT /dev/hda
> /dev/hda:
> Timing buffer-cache reads: 128 MB in 0.27 seconds =474.07 MB/sec
> Timing buffered disk reads: 64 MB in 3.05 seconds = 20.98 MB/sec
>
> The cache read time is pretty ok but the disk read time is below of
> what I'd have expected. My expectations would have been around 40MB/sec.
>
> Am I wrong with my expectations for this setup?
> I'd really be interested in any suggestion about how I could omptimize
> the system.
I won't try to guess why my setup seems faster, but here's some info:
Script started on Mon Jan 27 16:05:52 2003
bash-2.05b# uname -a
Linux gaimboi.tmr.com 2.4.18-18.8.0 #1 Thu Nov 14 00:10:29 EST 2002 i686 i686 i386 GNU/Linux
bash-2.05b# \
> for disk in hda hdc; do
> cat /proc/ide/$disk/model
> hdparm -I /dev/$disk
> hdparm -Tt /dev/$disk
> cat /proc/ide/$disk/settings
> done
WDC WD200EB-00CSF0
/dev/hda:
ATA device, with non-removable media
Model Number: WDC WD200EB-00CSF0
Serial Number: WD-WTAAV3724404
Firmware Revision: 04.01B04
Standards:
Supported: 5 4 3 2
Likely used: 6
Configuration:
Logical max current
cylinders 16383 16383
heads 16 16
sectors/track 63 63
--
CHS current addressable sectors: 16514064
LBA user addressable sectors: 39102336
device size with M = 1024*1024: 19092 MBytes
device size with M = 1000*1000: 20020 MBytes (20 GB)
Capabilities:
LBA, IORDY(can be disabled)
bytes avail on r/w long: 40 Queue depth: 1
Standby timer values: spec'd by Standard, with device specific minimum
R/W multiple sector transfer: Max = 16 Current = 16
Recommended acoustic management value: 128, current value: 254
DMA: mdma0 mdma1 mdma2 udma0 udma1 *udma2 udma3 udma4 udma5
Cycle time: min=120ns recommended=120ns
PIO: pio0 pio1 pio2 pio3 pio4
Cycle time: no flow control=120ns IORDY flow control=120ns
Commands/features:
Enabled Supported:
* READ BUFFER cmd
* WRITE BUFFER cmd
* Host Protected Area feature set
* Look-ahead
* Write cache
* Power Management feature set
Security Mode feature set
SMART feature set
Automatic Acoustic Management feature set
SET MAX security extension
* DOWNLOAD MICROCODE cmd
Security:
supported
not enabled
not locked
not frozen
not expired: security count
not supported: enhanced erase
HW reset results:
CBLID- above Vih
Device num = 0 determined by the jumper
Checksum: correct
/dev/hda:
Timing buffer-cache reads: 128 MB in 0.26 seconds =492.78 MB/sec
Timing buffered disk reads: 64 MB in 2.26 seconds = 28.30 MB/sec
name value min max mode
---- ----- --- --- ----
acoustic 0 0 254 rw
address 0 0 2 rw
bios_cyl 2434 0 65535 rw
bios_head 255 0 255 rw
bios_sect 63 0 63 rw
breada_readahead 8 0 255 rw
bswap 0 0 1 r
current_speed 66 0 69 rw
failures 0 0 65535 rw
file_readahead 508 0 16384 rw
ide_scsi 0 0 1 rw
init_speed 66 0 69 rw
io_32bit 0 0 3 rw
keepsettings 0 0 1 rw
lun 0 0 7 rw
max_failures 1 0 65535 rw
max_kb_per_request 128 1 255 rw
multcount 16 0 16 rw
nice1 1 0 1 rw
nowerr 0 0 1 rw
number 0 0 3 rw
pio_mode write-only 0 255 w
slow 0 0 1 rw
unmaskirq 0 0 1 rw
using_dma 1 0 1 rw
wcache 0 0 1 rw
ST360021A
/dev/hdc:
ATA device, with non-removable media
Model Number: ST360021A
Serial Number: 3HR1C0F1
Firmware Revision: 3.19
Standards:
Supported: 5 4 3 2
Likely used: 6
Configuration:
Logical max current
cylinders 16383 16383
heads 16 16
sectors/track 63 63
--
CHS current addressable sectors: 16514064
LBA user addressable sectors: 117231408
device size with M = 1024*1024: 57241 MBytes
device size with M = 1000*1000: 60022 MBytes (60 GB)
Capabilities:
LBA, IORDY(can be disabled)
bytes avail on r/w long: 4 Queue depth: 1
Standby timer values: spec'd by Standard
R/W multiple sector transfer: Max = 16 Current = 16
Recommended acoustic management value: 128, current value: 128
DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 *udma5
Cycle time: min=120ns recommended=120ns
PIO: pio0 pio1 pio2 pio3 pio4
Cycle time: no flow control=240ns IORDY flow control=120ns
Commands/features:
Enabled Supported:
* READ BUFFER cmd
* WRITE BUFFER cmd
* Host Protected Area feature set
* Look-ahead
* Write cache
* Power Management feature set
Security Mode feature set
SMART feature set
Device Configuration Overlay feature set
* Automatic Acoustic Management feature set
SET MAX security extension
* DOWNLOAD MICROCODE cmd
Security:
Master password revision code = 65534
supported
not enabled
not locked
not frozen
not expired: security count
not supported: enhanced erase
HW reset results:
CBLID- above Vih
Device num = 1
Checksum: correct
/dev/hdc:
Timing buffer-cache reads: 128 MB in 0.26 seconds =492.78 MB/sec
Timing buffered disk reads: 64 MB in 1.58 seconds = 40.50 MB/sec
name value min max mode
---- ----- --- --- ----
acoustic 0 0 254 rw
address 0 0 2 rw
bios_cyl 116301 0 65535 rw
bios_head 16 0 255 rw
bios_sect 63 0 63 rw
breada_readahead 8 0 255 rw
bswap 0 0 1 r
current_speed 69 0 69 rw
failures 0 0 65535 rw
file_readahead 508 0 16384 rw
ide_scsi 0 0 1 rw
init_speed 69 0 69 rw
io_32bit 0 0 3 rw
keepsettings 0 0 1 rw
lun 0 0 7 rw
max_failures 1 0 65535 rw
max_kb_per_request 128 1 255 rw
multcount 16 0 16 rw
nice1 1 0 1 rw
nowerr 0 0 1 rw
number 2 0 3 rw
pio_mode write-only 0 255 w
slow 0 0 1 rw
unmaskirq 0 0 1 rw
using_dma 1 0 1 rw
wcache 0 0 1 rw
bash-2.05b# exit
Script done on Mon Jan 27 16:18:40 2003
> And here's some more information about the current settings (let me
> know if you need anything else):
>
> tom@storm:~$ sudo hdparm /dev/hda
> /dev/hda:
> multcount = 16 (on)
> I/O support = 3 (32-bit w/sync)
> unmaskirq = 1 (on)
> using_dma = 1 (on)
> keepsettings = 0 (off)
> nowerr = 0 (off)
> readonly = 0 (off)
> readahead = 255 (on)
> geometry = 9729/255/63, sectors = 156301488, start = 0
> busstate = 1 (on)
>
>
> tom@storm:~$ sudo cat /proc/ide/hda/settings
> name value min max mode
> ---- ----- --- --- ----
> acoustic 0 0 254 rw
> address 0 0 2 rw
> bios_cyl 9729 0 65535 rw
> bios_head 255 0 255 rw
> bios_sect 63 0 63 rw
> breada_readahead 255 0 255 rw
> bswap 0 0 1 r
> current_speed 69 0 69 rw
> failures 0 0 65535 rw
> file_readahead 16384 0 16384 rw
> ide_scsi 0 0 1 rw
> init_speed 69 0 69 rw
> io_32bit 3 0 3 rw
> keepsettings 0 0 1 rw
> lun 0 0 7 rw
> max_failures 1 0 65535 rw
> max_kb_per_request 255 1 255 rw
> multcount 16 0 16 rw
> nice1 1 0 1 rw
> nowerr 0 0 1 rw
> number 0 0 3 rw
> pio_mode write-only 0 255 w
> slow 0 0 1 rw
> unmaskirq 1 0 1 rw
> using_dma 1 0 1 rw
> wcache 0 0 1 rw
>
>
> tom@storm:~$ sudo hdparm -I /dev/hda
> /dev/hda:
> non-removable ATA device, with non-removable media
> Model Number: WDC WD800JB-00CRA1
> Serial Number: WD-WMA8E3710419
> Firmware Revision: 17.07W17
> Standards:
> Supported: 1 2 3 4 5
> Likely used: 5
> Configuration:
> Logical max current
> cylinders 16383 16383
> heads 16 16
> sectors/track 63 63
> bytes/track: 57600 (obsolete)
> bytes/sector: 600 (obsolete)
> current sector capacity: 16514064
> LBA user addressable sectors = 156301488
> Capabilities:
> LBA, IORDY(can be disabled)
> Buffer size: 8192.0kB ECC bytes: 40 Queue depth: 1
> Standby timer values: spec'd by standard, with device specific minimum
> r/w multiple sector transfer: Max = 16 Current = 16
> DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 *udma5
> Cycle time: min=120ns recommended=120ns
> PIO: pio0 pio1 pio2 pio3 pio4
> Cycle time: no flow control=120ns IORDY flow control=120ns
> Commands/features:
> Enabled Supported:
> * READ BUFFER cmd
> * WRITE BUFFER cmd
> * Host Protected Area feature set
> * look-ahead
> * write cache
> * Power Management feature set
> Security Mode feature set
> SMART feature set
> SET MAX security extension
> * DOWNLOAD MICROCODE cmd
> Security:
> supported
> not enabled
> not locked
> not frozen
> not expired: security count
> not supported: enhanced erase
> HW reset results:
> CBLID- above Vih
> Device num = 0 determined by the jumper
> Checksum: correct
>
>
>
> A full dmesg dump can be found at http://www.wnk.at/files/dmesg.txt
--
bill davidsen <[email protected]>
CTO, TMR Associates, Inc
Doing interesting things with little computers since 1979.
I'm using some maxtor on the same motherboard and I had to struggle a
bit before getting some decent perf, basically I kept only the minimum
IDE,ATA.. drivers in my kernel, for my P4PE it's the Intel PIIXn and
also the PIIXn tuning option.
I also added idebus=66 in my command-line kernel option...
I disabled the Promise Raid controller in the bios that was responsible
for some 2.4.20 kernels to hang at detection (?)
now I get this :
# hdparm -tT /dev/hda
/dev/hda:
Timing buffer-cache reads: 128 MB in 0.30 seconds =426.67 MB/sec
Timing buffered disk reads: 64 MB in 1.38 seconds = 46.38 MB/sec
# hdparm -I /dev/hda
/dev/hda:
non-removable ATA device, with non-removable media
Model Number: Maxtor 6Y120P0
Serial Number: Y40FKPWE
Firmware Revision: YAR41VW0
Standards:
Supported: 1 2 3 4 5 6 7
Likely used: 7
Configuration:
Logical max current
cylinders 16383 16383
heads 16 16
sectors/track 63 63
bytes/track: 0 (obsolete)
bytes/sector: 0 (obsolete)
current sector capacity: 16514064
LBA user addressable sectors = 240121728
Capabilities:
LBA, IORDY(can be disabled)
Buffer size: 7936.0kB ECC bytes: 57 Queue depth: 1
Standby timer values: spec'd by standard, no device specific
minimum
r/w multiple sector transfer: Max = 16 Current = 16
DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 *udma5 udma6
Cycle time: min=120ns recommended=120ns
PIO: pio0 pio1 pio2 pio3 pio4
Cycle time: no flow control=120ns IORDY flow control=120ns
Commands/features:
Enabled Supported:
* NOP cmd
* READ BUFFER cmd
* WRITE BUFFER cmd
* Host Protected Area feature set
* look-ahead
* write cache
* Power Management feature set
Security Mode feature set
SMART feature set
SET MAX security extension
Advanced Power Management feature set
* DOWNLOAD MICROCODE cmd
Security:
Master password revision code = 65534
supported
not enabled
not locked
not frozen
not expired: security count
not supported: enhanced erase
HW reset results:
CBLID- above Vih
Device num = 0 determined by the jumper
Checksum: correct
this disk seems equivalent to your western digital.
my lspci :
00:00.0 Host bridge: Intel Corp. 82845G/GL [Brookdale-G] Chipset Host Bridge (rev 02)
00:01.0 PCI bridge: Intel Corp. 82845G/GL [Brookdale-G] Chipset AGP Bridge (rev 02)
00:1e.0 PCI bridge: Intel Corp. 82801BA/CA/DB PCI Bridge (rev 82)
00:1f.0 ISA bridge: Intel Corp. 82801DB ISA Bridge (LPC) (rev 02)
00:1f.1 IDE interface: Intel Corp. 82801DB ICH4 IDE (rev 02)
00:1f.5 Multimedia audio controller: Intel Corp. 82801DB AC'97 Audio (rev 02)
01:00.0 VGA compatible controller: nVidia Corporation NV25 [GeForce4 Ti4200] (rev a3)
02:03.0 FireWire (IEEE 1394): VIA Technologies, Inc. IEEE 1394 Host Controller (rev 80)
02:0b.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 10)
a lot of device don't appear here because I disabled them whilst looking
for what is causing my maching to hang once every three days...
--
Quand les plombs p?tent : ? ??sj???t.??? ?