[Bugme-new] [Bug 4412] New: Extremely bad NFS performance
bugme-daemon at osdl.org
bugme-daemon at osdl.org
Sun Mar 27 06:38:58 PST 2005
http://bugme.osdl.org/show_bug.cgi?id=4412
Summary: Extremely bad NFS performance
Kernel Version: 2.6.11.5
Status: NEW
Severity: normal
Owner: trond.myklebust at fys.uio.no
Submitter: e9525103 at stud4.tuwien.ac.at
Distribution:
Debian sid with self compiled kernel 2.6.11.5. Compiled with gcc-3.3.5.
Hardware Environment:
CPU: mobile Athlon XP 1800+
Mainboard: ABit NF7S V2.0
lspci -v output:
0000:00:00.0 Host bridge: nVidia Corporation nForce2 AGP (different version?)
(rev c1)
Subsystem: ABIT Computer Corp.: Unknown device 1c00
Flags: bus master, 66MHz, fast devsel, latency 0
Memory at d0000000 (32-bit, prefetchable) [size=64M]
Capabilities: [40] AGP version 2.0
Capabilities: [60] #08 [2001]
0000:00:00.1 RAM memory: nVidia Corporation nForce2 Memory Controller 1 (rev c1)
Subsystem: nVidia Corporation: Unknown device 0c17
Flags: 66MHz, fast devsel
0000:00:00.2 RAM memory: nVidia Corporation nForce2 Memory Controller 4 (rev c1)
Subsystem: nVidia Corporation: Unknown device 0c17
Flags: 66MHz, fast devsel
0000:00:00.3 RAM memory: nVidia Corporation nForce2 Memory Controller 3 (rev c1)
Subsystem: nVidia Corporation: Unknown device 0c17
Flags: 66MHz, fast devsel
0000:00:00.4 RAM memory: nVidia Corporation nForce2 Memory Controller 2 (rev c1)
Subsystem: nVidia Corporation: Unknown device 0c17
Flags: 66MHz, fast devsel
0000:00:00.5 RAM memory: nVidia Corporation nForce2 Memory Controller 5 (rev c1)
Subsystem: nVidia Corporation: Unknown device 0c17
Flags: 66MHz, fast devsel
0000:00:01.0 ISA bridge: nVidia Corporation nForce2 ISA Bridge (rev a4)
Subsystem: ABIT Computer Corp.: Unknown device 1c00
Flags: bus master, 66MHz, fast devsel, latency 0
Capabilities: [48] #08 [01e1]
0000:00:01.1 SMBus: nVidia Corporation nForce2 SMBus (MCP) (rev a2)
Subsystem: ABIT Computer Corp.: Unknown device 1c00
Flags: 66MHz, fast devsel, IRQ 10
I/O ports at c400 [size=32]
Capabilities: [44] Power Management version 2
0000:00:02.0 USB Controller: nVidia Corporation nForce2 USB Controller (rev a4)
(prog-if 10 [OHCI])
Subsystem: ABIT Computer Corp.: Unknown device 1c00
Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 22
Memory at e1087000 (32-bit, non-prefetchable) [size=4K]
Capabilities: [44] Power Management version 2
0000:00:02.1 USB Controller: nVidia Corporation nForce2 USB Controller (rev a4)
(prog-if 10 [OHCI])
Subsystem: ABIT Computer Corp.: Unknown device 1c00
Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 21
Memory at e1082000 (32-bit, non-prefetchable) [size=4K]
Capabilities: [44] Power Management version 2
0000:00:02.2 USB Controller: nVidia Corporation nForce2 USB Controller (rev a4)
(prog-if 20 [EHCI])
Subsystem: ABIT Computer Corp.: Unknown device 1c00
Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 20
Memory at e1083000 (32-bit, non-prefetchable) [size=256]
Capabilities: [44] #0a [2080]
Capabilities: [80] Power Management version 2
0000:00:04.0 Ethernet controller: nVidia Corporation nForce2 Ethernet Controller
(rev a1)
Subsystem: ABIT Computer Corp.: Unknown device 1c00
Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 22
Memory at e1086000 (32-bit, non-prefetchable) [size=4K]
I/O ports at b000 [size=8]
Capabilities: [44] Power Management version 2
0000:00:05.0 Multimedia audio controller: nVidia Corporation nForce MultiMedia
audio [Via VT82C686B] (rev a2)
Subsystem: ABIT Computer Corp.: Unknown device 1c00
Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 5
Memory at e1000000 (32-bit, non-prefetchable) [size=512K]
Capabilities: [44] Power Management version 2
0000:00:06.0 Multimedia audio controller: nVidia Corporation nForce2 AC97 Audio
Controler (MCP) (rev a1)
Subsystem: ABIT Computer Corp.: Unknown device 1c00
Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 21
I/O ports at b400 [size=256]
I/O ports at b800 [size=128]
Memory at e1080000 (32-bit, non-prefetchable) [size=4K]
Capabilities: [44] Power Management version 2
0000:00:08.0 PCI bridge: nVidia Corporation nForce2 External PCI Bridge (rev a3)
(prog-if 00 [Normal decode])
Flags: bus master, 66MHz, fast devsel, latency 0
Bus: primary=00, secondary=01, subordinate=01, sec-latency=32
I/O behind bridge: 00009000-0000afff
Memory behind bridge: df000000-e0ffffff
Prefetchable memory behind bridge: dc000000-dcffffff
0000:00:09.0 IDE interface: nVidia Corporation nForce2 IDE (rev a2) (prog-if 8a
[Master SecP PriP])
Subsystem: ABIT Computer Corp.: Unknown device 1c00
Flags: bus master, 66MHz, fast devsel, latency 0
I/O ports at f000 [size=16]
Capabilities: [44] Power Management version 2
0000:00:0d.0 FireWire (IEEE 1394): nVidia Corporation nForce2 FireWire (IEEE
1394) Controller (rev a3) (prog-if 10 [OHCI])
Subsystem: ABIT Computer Corp.: Unknown device 1c00
Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 10
Memory at e1084000 (32-bit, non-prefetchable) [size=2K]
Memory at e1085000 (32-bit, non-prefetchable) [size=64]
Capabilities: [44] Power Management version 2
0000:00:1e.0 PCI bridge: nVidia Corporation nForce2 AGP (rev c1) (prog-if 00
[Normal decode])
Flags: bus master, 66MHz, medium devsel, latency 32
Bus: primary=00, secondary=02, subordinate=02, sec-latency=32
Memory behind bridge: dd000000-deffffff
Prefetchable memory behind bridge: d4000000-dbffffff
0000:01:07.0 Multimedia video controller: Brooktree Corporation Bt878 Video
Capture (rev 02)
Flags: bus master, medium devsel, latency 32, IRQ 19
Memory at dc000000 (32-bit, prefetchable) [size=4K]
0000:01:07.1 Multimedia controller: Brooktree Corporation Bt878 Audio Capture
(rev 02)
Flags: bus master, medium devsel, latency 32, IRQ 19
Memory at dc001000 (32-bit, prefetchable) [size=4K]
0000:01:0b.0 RAID bus controller: Silicon Image, Inc. (formerly CMD Technology
Inc) SiI 3112 [SATALink/SATARaid] Serial ATA Controller (rev 02)
Subsystem: Silicon Image, Inc. (formerly CMD Technology Inc) Asus A7N8X
Flags: bus master, 66MHz, medium devsel, latency 32, IRQ 11
I/O ports at 9000 [size=8]
I/O ports at 9400 [size=4]
I/O ports at 9800 [size=8]
I/O ports at 9c00 [size=4]
I/O ports at a000 [size=16]
Memory at e0000000 (32-bit, non-prefetchable) [size=512]
Capabilities: [60] Power Management version 2
0000:02:00.0 VGA compatible controller: nVidia Corporation NV25 [GeForce4 Ti
4200] (rev a3) (prog-if 00 [VGA])
Flags: bus master, 66MHz, medium devsel, latency 248, IRQ 19
Memory at dd000000 (32-bit, non-prefetchable) [size=16M]
Memory at d4000000 (32-bit, prefetchable) [size=64M]
Memory at d8000000 (32-bit, prefetchable) [size=512K]
Capabilities: [60] Power Management version 2
Capabilities: [44] AGP version 2.0
Software Environment:
Loaded drivers:
Module Size Used by
sd_mod 16528 0
sata_sil 8836 0
nfs 104364 0
lockd 67240 1 nfs
sunrpc 149060 2 nfs,lockd
visor 19468 0
ehci_hcd 49544 0
ohci_hcd 36488 0
rfcomm 41884 1
l2cap 28420 5 rfcomm
bluetooth 53508 4 rfcomm,l2cap
snd_seq_oss 35840 0
snd_seq_midi_event 8320 1 snd_seq_oss
snd_seq 55952 4 snd_seq_oss,snd_seq_midi_event
snd_seq_device 8972 2 snd_seq_oss,snd_seq
snd_pcm_oss 53792 0
snd_mixer_oss 20480 1 snd_pcm_oss
snd_bt87x 15432 0
snd_intel8x0 33856 2
snd_ac97_codec 77560 1 snd_intel8x0
snd_pcm 95880 4 snd_pcm_oss,snd_bt87x,snd_intel8x0,snd_ac97_codec
snd_timer 26500 2 snd_seq,snd_pcm
snd 57828 14
snd_seq_oss,snd_seq,snd_seq_device,snd_pcm_oss,snd_mixer_oss,snd_bt87x,snd_intel8x0,snd_ac97_codec,snd_pcm,snd_timer
snd_page_alloc 10116 3 snd_bt87x,snd_intel8x0,snd_pcm
nvidia 3922428 12
8250_pnp 8704 0
8250 25252 1 8250_pnp
serial_core 23808 1 8250
libata 48388 1 sata_sil
forcedeth 19584 0
joydev 9792 0
evdev 9472 0
binfmt_misc 12040 1
lp 11204 0
usbserial 30568 1 visor
usbhid 26880 0
parport_pc 41796 1
parport 37832 2 lp,parport_pc
autofs4 20356 2
nvidia_agp 7964 1
agpgart 35112 2 nvidia,nvidia_agp
3c59x 42152 0
mii 5248 1 3c59x
tuner 22948 0
tvaudio 23716 0
bttv 155216 0
firmware_class 10880 1 bttv
tveeprom 13336 1 bttv
video_buf 22404 1 bttv
v4l2_common 6016 1 bttv
btcx_risc 5000 1 bttv
w83627hf 30504 0
eeprom 7696 0
i2c_sensor 3840 2 w83627hf,eeprom
i2c_isa 2176 0
i2c_nforce2 6784 0
i2c_algo_bit 9992 1 bttv
i2c_core 23312 10
tuner,tvaudio,bttv,tveeprom,w83627hf,eeprom,i2c_sensor,i2c_isa,i2c_nforce2,i2c_algo_bit
videodev 10112 1 bttv
soundcore 10464 1 snd
thermal 13576 0
processor 23220 1 thermal
button 6800 0
usb_storage 71232 0
scsi_mod 95176 3 sd_mod,libata,usb_storage
usbcore 138232 7 visor,ehci_hcd,ohci_hcd,usbserial,usbhid,usb_storage
ide_cd 41988 0
cdrom 41376 1 ide_cd
rtc 13496 0
Problem Description:
Since the last kernel update the NFS performance is really bad (~500kB/s over a
100MBit line!!). The low performance seems to be caused by great pauses between
the packets (about 0.5s). dmesg-output shows that there are connection problems.
These connection problems only occur with the new kernel 2.6.11. The NFS-server
still runs 2.6.7.
Additionally it is not possible to kill the copy task. The performance of the
whole system is really bad when an NFS copy task is active.
demsg output:
nfs warning: mount version older than kernel
nfs warning: mount version older than kernel
nfs warning: mount version older than kernel
nfs warning: mount version older than kernel
nfs warning: mount version older than kernel
nfs warning: mount version older than kernel
nfs warning: mount version older than kernel
nfs: server leela not responding, still trying
nfs: server leela OK
nfs: server leela not responding, still trying
nfs: server leela not responding, still trying
nfs: server leela not responding, still trying
nfs: server leela not responding, still trying
nfs: server leela OK
nfs: server leela OK
nfs: server leela not responding, still trying
nfs: server leela not responding, still trying
nfs: server leela OK
nfs: server leela OK
nfs: server leela OK
nfs: server leela OK
nfs: server leela not responding, still trying
output of mount:
leela:/mnt/bdata/public on /autonet/auto/leela/mnt/bdata/public type nfs
(rw,nosuid,nodev,hard,intr,rsize=8192,wsize=8192,addr=10.42.42.60)
Steps to reproduce:
This problem especially affects the transmission of bigger files.
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