slow data transfer over nfs ... is it fedora?
Harry Putnam
reader at newsguy.com
Fri Dec 5 02:33:42 UTC 2003
Samuel Flory <sflory at rackable.com> writes:
> Harry Putnam wrote:
>> I lack much experience with nfs but I suspect I should be seeing much
>> better transfer rates here. Wondering if a few posters could post a
>> timed transfer of know amount of data
>> This is from a rh9 to yarrow (fully updated) I'll show exports file
>> at the end:
>> root # du -sh $rea/News/agent/nntp/enews*
>> 169M /home/reader/News/agent/nntp/enews.newsguy.com
>> root # time cp -a $rea/News/agent/nntp/enews*/ /EXP_root
>> real 12m26.120s
>> user 0m0.340s
>> sys 0m13.990s
>> So 169MB in 12 1/2 minutes.
>> cat /etc/exports:
>> / reader(rw,async,insecure_locks,no_root_squash)
>> /home reader(rw,async,insecure_locks,no_root_squash)
>> /var reader(rw,async,insecure_locks,no_root_squash)
>> /mnt/exp reader(rw,async,insecure_locks,no_root_squash)
>> /usr reader(rw,async,insecure_locks,no_root_squash)
>> /tmp reader(rw,async,insecure_locks,no_root_squash)
>>
>
First do you have example speeds?
> What does /proc/mount say?
Nothing here:
cat /proc/mount No such file or directory
> What does "mii-tool eth0" or "ethtool
> eth0" say? Are you dropping packets? (ifconfig and ping )
root # mii-tool
eth0: negotiated 100baseTx-HD, link ok
eth1: no link
==================================
root # ethtool eth0
Settings for eth0:
Supported ports: [ TP MII ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
Supports auto-negotiation: Yes
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
Advertised auto-negotiation: Yes
Speed: 100Mb/s
Duplex: Half
Port: Twisted Pair
PHYAD: 1
Transceiver: internal
Auto-negotiation: on
Supports Wake-on: puag
Wake-on: g
Link detected: yes
ifconfig reading taken during write across nfs:
root # ifconfig eth0
eth0 Link encap:Ethernet HWaddr 00:03:47:FA:4B:13
inet addr:192.168.0.4 Bcast:192.168.0.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:2023545 errors:50 dropped:0 overruns:0 frame:50
TX packets:1867748 errors:0 dropped:0 overruns:0 carrier:0
collisions:6765 txqueuelen:100
RX bytes:983047766 (937.5 Mb) TX bytes:454217274 (433.1 Mb)
Interrupt:11 Base address:0xdf00 Memory:ff9fc000-ff9fc038
To my inexperienced eye those look normal.. are they?
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