NFS sloow on 2.4

[J.A. Magallon]

Hi all...

I have noticed that NFS is very slow on writes with 2.4.26-pre6.
Some example:

- On the server:
annwn:~> time -p dd if=/dev/zero of=tst bs=1024 count=2048
2048+0 records in
2048+0 records out
real 0.04
user 0.01
sys 0.04

-On the client:
2048+0 records in
2048+0 records out
real 21.56
user 0.00
sys 0.02

Any idea on what's happening ?

SERVER
/etc/exports:
/home   *.net1.cluster(rw,no_root_squash,no_subtree_check,no_auth_nlm)
annwn:~> ifconfig eth2
eth2      Link encap:Ethernet  HWaddr 00:03:47:23:D5:74
          inet addr:192.168.1.1  Bcast:192.168.1.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:225214 errors:0 dropped:0 overruns:0 frame:0
          TX packets:135234 errors:0 dropped:0 overruns:0 carrier:134665
          collisions:0 txqueuelen:1000
          RX bytes:36314498 (34.6 Mb)  TX bytes:47083712 (44.9 Mb)
          Memory:df000000-df020000
03:01.0 Ethernet controller: Intel Corp. 82543GC Gigabit Ethernet 
Controller (Copper) (rev 02)

CLIENT
mount:
192.168.1.1:/home on /home type nfs 
(rw,nfsvers=3,tcp,rsize=8192,wsize=8192,noac,addr=192.168.1.1)
node06:~> ifconfig eth1
eth1      Link encap:Ethernet  HWaddr 00:30:48:70:DE:5B
          inet addr:192.168.1.16  Bcast:192.168.1.255  
Mask:255.255.255.0
          UP BROADCAST NOTRAILERS RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:31710 errors:0 dropped:0 overruns:0 frame:0
          TX packets:41138 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:11676250 (11.1 Mb)  TX bytes:9522033 (9.0 Mb)
          Base address:0xa800 Memory:f2020000-f2040000
02:0a.0 Ethernet controller: Intel Corp.: Unknown device 1013
(is also a Gigabit from Intel, on board)

Are this expected timings, or something is really wrong ?

TIA


--
J.A. Magallon <jamagallon()able!es>   \          Software is like sex:
werewolf!able!es                       \    It's better when it's free
MacOS X 10.3.3, Build 7F44, Darwin Kernel Version 7.3.0

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