From: Jehan PROCACCIA <Jehan.Procaccia@int-evry.fr>
Subject: Re: interprtation of /proc/net/rpc/nfsd
Date: Fri, 08 Oct 2004 15:28:22 +0200
Sender: nfs-admin@lists.sourceforge.net
Message-ID: <416695F6.8080707@int-evry.fr>
References: <41666777.7030003@int-evry.fr> <4166900D.3060401@moving-picture.com>
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Cc: nfs@lists.sourceforge.net
To: James Pearson <james-p@moving-picture.com>
In-Reply-To: <4166900D.3060401@moving-picture.com>
Errors-To: nfs-admin@lists.sourceforge.net

James Pearson wrote:

> Jehan PROCACCIA wrote:
>
>> Hello,
>>
>> I am tunning my NFS configuration on a RedHat ES v3 (equivalent 
>> Fedora Core 1 , kernel 2.4.X)  and by reading the docs (NFS howto 
>> perf 5.6 )  I should see if I have enough NFSD daemon by looking at  
>> /proc/net/rpc/nfs, especialy line "th"
>>
>> $ grep th /proc/net/rpc/nfsd
>> th 8 41598 20357.020 3974.540 1809.300 0.000 998.210 781.650 483.840 
>> 116.640 0.000 825.230
>>
>> However I cannot understand how to read that information !?
>> I see that I have 8 threads (8 nfsd daemon runing) but figures after ???
>
>
> See:
>
> http://nfs.sourceforge.net/nfs-howto/performance.html#NFSD-INSTANCE

Yes, I've read that part , but I cannot understand it :-(
The last ten numbers on the *th* line in that file indicate the number 
of seconds that the thread usage was at that percentage of the maximum 
allowable.

$ grep th /proc/net/rpc/nfsd
th 8 41598 20357.020 3974.540 1809.300 0.000 998.210 781.650 483.840 
116.640 0.000 825.230

Why ten numbers, I have 8 thraeds ! ? here for the last number for 
exemple, I had 825seconds that thread number 8 was at 230% of it's 
maximum ???

>
>> Second question,
>>
>> How on an NFS client (Here I have fedora core 2 clients) can I see 
>> how is currently mounted an NFS filsystem, I want to check what are 
>> the current options in use (nfs version, rsize, wsize, sync/async, 
>> hard, soft etc ...). On the server I can have a look at 
>> /var/lib/nfs/xtab
>>
>> $ cat /var/lib/nfs/xtab | grep arvouin
>> /mci/mci        
>> arvouin.int-evry.fr(rw,async,wdelay,hide,nocrossmnt,secure,root_squash,no_all_squash,subtree_check,secure_locks,acl,mapping=identity,anonuid=-2,anongid=-2) 
>>
>>
>> but I am often changing options on the server (for tunning purpose) , 
>> and hence I want to check that my clients is mounted with the latest 
>> options,  do I need to remount on the client everytime I change 
>> options on the server ? (exportfs -r -v -a)  ... .checking what is 
>> the current options on the client would be more clear to me .
>
>
> I think you have to remount.
>
> Have a look at /proc/mounts on the client.
>
Great , that nearly what I wanted
[root@arvouin nfs]# grep procacci /proc/mounts
cobra3:/mci/mci/procacci /mci/mci/procacci nfs 
rw,v3,rsize=8192,wsize=8192,soft,intr,tcp,lock,addr=cobra3 0 0

can't see however if export is using sync or async :-( .
thanks a lot.

> James Pearson


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