Hi Leon,
You should be able to get 4x that level of throughput on 2 opteron
processors. Some other tuning that might be useful:
You might increase the number of servers higher (there isn't any
significant downside). We use 1024 as a default on most systems.
In /etc/system:
set ip:ipcl_conn_hash_size=262144
set ncsize=2097152
UFS mount options to disable atimes make quite a difference:
mount -onoatime
Richard.
On Thu, Jan 12, 2006 at 01:25:38PM -0800, Leon Koll wrote:
> [i]x-posted:
> http://napobo3.blogspot.com/2006/01/turbocharging-nfs-server.html [/i]
> When out-of-the box S10/x86 showed mediocre NFS performance (measured by the
> SPEC SFS benchmark) the following measures improved the results more than
> twice :
> 1.increase the dnlc size (set ncsize = 0x100000 in /etc/system)
> 2.increase the number of concurrent NFS requests (NFSD_SERVERS=128 in
> /etc/default/nfs)
> 3.increase the number of VxFS inode table (yes, I am using VxFS)
> 4.increase the FC HBA queue depth to 256 commands
> The dual AMD Opteron 252 box reached 11200 ops/sec with response time 2.4
> msec with 24 processes on one load generator.
> This message posted from opensolaris.org
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Richard Mc Dougall : [EMAIL PROTECTED]
Performance and Availability : x31542
Engineering : http://devnull.eng
Sun Microsystems Inc : +1 650 352 6438
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