| View previous topic :: View next topic |
| Author |
Message |
tobiasthecommie
n00b
Joined: 10 Feb 2004
Posts: 51
|
 Posted: Sun Jul 11, 2004 1:46 am Post subject: udma activated, still io-wait problem. |
 |
|
i'm using hdparm -d1 -A1 -m16 -u1 -a6 -c1 -X 69 /dev/hd[a-d]
which does what it should:
| Quote: |
/dev/hda:
Model=IBM-DTLA-307030, FwRev=TX4OA6AA, SerialNo=YKCYKTM3269
Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=40
BuffType=DualPortCache, BuffSize=1916kB, MaxMultSect=16, MultSect=16
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=60036480
IORDY=on/off, tPIO={min:240,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
AdvancedPM=yes: disabled (255) WriteCache=enabled
Drive conforms to: ATA/ATAPI-5 T13 1321D revision 1:
|
tests looks fine
| Quote: |
hdparm -Tt /dev/hda
/dev/hda:
Timing buffer-cache reads: 1004 MB in 2.00 seconds = 501.32 MB/sec
Timing buffered disk reads: 86 MB in 3.04 seconds = 28.27 MB/sec
|
Yet whenever i try to watch something(with mplayer which uses about 7% cpu when running), and at the same time doing something as simple as an unrar, my io-wait jumps to 80+%. Or rather, it doesn't matter if i use mplayer or not, whenever i try to rar something(or when my system compresses log files at night) the io-wait jumps to incredible hights.
As far as i can see its not a udma problem. i wonder if i haven't compiled the right chipset for my ide controller, but then i suspect i couldn't activate UDMA.
from my /proc/pci
| Quote: |
Bus 0, device 2, function 5:
IDE interface: Silicon Integrated Systems [SiS] 5513 [IDE] (rev 208).
Master Capable. Latency=128.
I/O at 0x4000 [0x400f].
|
which i have enabled in my kernel(not as a module, directly in kernel).
Though i just noticed i haven't compiled "Generic PCI IDE Chipset Support", not sure if that could create my problem, i have enabled "Generic PCI Bus-master DMA support" though(ofcourse, the SIS module is as an extention to this one)
I am fairely certain that i haven't had this problem before, without it being the proccess or PIO that used all my resources, but this time its not the proccess, nor am i running in PIO.
Example unrar
| Quote: |
top - 03:41:37 up 59 days, 3:35, 213 users, load average: 2.25, 1.22, 1.10
Tasks: 175 total, 3 running, 160 sleeping, 0 stopped, 12 zombie
Cpu(s): 22.6% us, 11.8% sy, 0.0% ni, 0.3% id, 51.8% wa, 5.2% hi, 8.2% si
Mem: 515000k total, 511848k used, 3152k free, 404k buffers
Swap: 399992k total, 228964k used, 171028k free, 138024k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
9506 tobias 18 0 6932 1228 2324 R 9.9 0.2 0:04.25 rar
22922 tobias 1 -15 26940 13m 18m S 8.2 2.6 7:11.28 mplayer
|
the source of the rar file is a networked drive but the output and the mplayer is from the same drive.
when i idle i get this
| Quote: |
top - 03:44:14 up 59 days, 3:38, 213 users, load average: 0.79, 1.00, 1.03
Tasks: 172 total, 1 running, 159 sleeping, 0 stopped, 12 zombie
Cpu(s): 5.6% us, 2.3% sy, 0.0% ni, 90.4% id, 0.0% wa, 1.0% hi, 0.7% si
Mem: 515000k total, 511712k used, 3288k free, 3172k buffers
Swap: 399992k total, 228760k used, 171232k free, 145876k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
30042 tobias 15 0 12568 1840 5744 S 2.0 0.4 1481:11 sshd
|
Now i know i have alot of redundant and irelevant information in this post/cry for help. But i would rather give too much.
So my basic question(now that i have forced people to read through all this).
Should any simple process like rar/bz2 create 50+%(sometimes nearing 80) of io-wait(not afaik).
If not, any idea as to the cause.
Sincerely
Tobias Ussing
thehole@mail.seriesdb.com |
|
| Back to top |
|
 |
tobiasthecommie
n00b
Joined: 10 Feb 2004
Posts: 51
|
| Posted: Sun Jul 11, 2004 1:51 am Post subject: |
|
|
| wow, my first post, scary. |
|
| Back to top |
|
|
tobiasthecommie
n00b
Joined: 10 Feb 2004
Posts: 51
|
| Posted: Sun Jul 11, 2004 11:07 am Post subject: |
|
|
removed the zombies(seen frrom top), no avail.
killed mlnet(which was using 25% of my memory), no avail. |
|
| Back to top |
|
|
tobiasthecommie
n00b
Joined: 10 Feb 2004
Posts: 51
|
| Posted: Sun Jul 11, 2004 11:32 am Post subject: |
|
|
| tried closing two kde session(one local, one over ssh). and trying with bare X. no avail. |
|
| Back to top |
|
|
rawler
n00b
Joined: 26 Oct 2002
Posts: 17
Location: Ronneby, Sweden
|
| Posted: Fri Jul 23, 2004 8:10 pm Post subject: I recognise your problem. |
|
|
I experience the exact same problem. I've experienced the problem from 2.5.something through 2.6.8-rc1 (my current kernel)
Could you please paste lspci, and tell me what filesystem you are using on / ?
myself I'm on ReiserFS
lspci:
00:00.0 Host bridge: VIA Technologies, Inc. VT8377 [KT400 AGP] Host Bridge
00:01.0 PCI bridge: VIA Technologies, Inc. VT8235 PCI Bridge
00:10.0 USB Controller: VIA Technologies, Inc. USB (rev 80)
00:10.1 USB Controller: VIA Technologies, Inc. USB (rev 80)
00:10.2 USB Controller: VIA Technologies, Inc. USB (rev 80)
00:10.3 USB Controller: VIA Technologies, Inc. USB 2.0 (rev 82)
00:11.0 ISA bridge: VIA Technologies, Inc. VT8235 ISA Bridge
00:11.1 IDE interface: VIA Technologies, Inc. VT82C586A/B/VT82C686/A/B/VT8233/A/C/VT8235 PIPC Bus Master IDE (rev 06)
00:11.5 Multimedia audio controller: VIA Technologies, Inc. VT8233/A/8235 AC97 Audio Controller (rev 50)
00:12.0 Ethernet controller: VIA Technologies, Inc. VT6102 [Rhine-II] (rev 74)
01:00.0 VGA compatible controller: nVidia Corporation NV31 [GeForce FX 5600] (rev a1) |
|
| Back to top |
|
|
tobiasthecommie
n00b
Joined: 10 Feb 2004
Posts: 51
|
| Posted: Sat Jul 24, 2004 10:06 am Post subject: |
|
|
i'm on ext3.
| Code: |
00:00.0 Host bridge: Silicon Integrated Systems [SiS] SiS645DX Host & Memory & AGP Controller
00:01.0 PCI bridge: Silicon Integrated Systems [SiS] Virtual PCI-to-PCI bridge (AGP) (prog-if 00 [Normal decode])
00:02.0 ISA bridge: Silicon Integrated Systems [SiS] SiS961 [MuTIOL Media IO] (rev 10)
00:02.1 SMBus: Silicon Integrated Systems [SiS]: Unknown device 0016
Flags: medium devsel
I/O ports at 1080 [size=32]
00:02.2 USB Controller: Silicon Integrated Systems [SiS] USB 1.0 Controller (rev 07) (prog-if 10 [OHCI])
00:02.3 USB Controller: Silicon Integrated Systems [SiS] USB 1.0 Controller (rev 07) (prog-if 10 [OHCI])
00:02.5 IDE interface: Silicon Integrated Systems [SiS] 5513 [IDE] (rev d0) (prog-if 80 [Master])
Subsystem: Silicon Integrated Systems [SiS] SiS5513 EIDE Controller (A,B step)
Flags: bus master, fast devsel, latency 128
I/O ports at 4000 [size=16]
00:06.0 Multimedia audio controller: Creative Labs SB Live! EMU10k1 (rev 04)
00:06.1 Input device controller: Creative Labs SB Live! MIDI/Game Port (rev 01)
00:07.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 10)
00:08.0 FireWire (IEEE 1394): VIA Technologies, Inc. IEEE 1394 Host Controller (rev 46) (prog-if 10 [OHCI])
00:09.0 Communication controller: Intel Corp. 536EP Data Fax Modem
00:0f.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 10)
01:00.0 VGA compatible controller: nVidia Corporation NV25 [GeForce4 Ti 4200] (rev a3) (prog-if 00 [VGA])
|
there. hope you get someting intereresting.
I expanded two ofthem to have more than jus tthe first line of info. First the IDE adapter, and also some unknown adapter. |
|
| Back to top |
|
|
|
|
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
|
|
Kernel & Hardware
