slow data transfer over nfs ... is it fedora?

[Niilo Kajander]

On Fri, 2003-12-05 at 04:33, Harry Putnam wrote:
> 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

Half-duplex isn't normal to my eyes (;

>         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?

-- 
Niilo Kajander <nk at kajander.fi>