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

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Harry Putnam wrote:
Samuel Flory <sflory@xxxxxxxxxxxx> 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?


The errors are not normal, but there are not very many of them. Certainly not enough examplain your nfs speed. Try switching to tcp v3 mount, and seeing if that improves things. "man mount"
--
There is no such thing as obsolete hardware.
Merely hardware that other people don't want.
(The Second Rule of Hardware Acquisition)
Sam Flory <sflory@xxxxxxxxxxxx>





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