Hello.

 

I am working on the performance test of PVFS2 over IB(IBGD-1.8.2).

But the performance was terrible.  (70~80MB using pvfs2-cp)

So just wonder anybody has observed the same behavior earlier? 

And anybody can help me with some insight here?

 

When I was IB performance using perf_main, which is a benchmark tool in
IBGD, 

The IB performance was about 400MB.

 

my settings

- AMD Opteron Processor 240 - dual CPU  

- kernel 2.6.9-55.0.2.ELsmp

- running pvfs2-2.6.3

- IBGD-1.8.2 (Topspin HCA - 2pt, 10GB, PCI-X, 128MB)

 

I compiled pvfs2 with following flags: 

./configure --with-kernel=/usr/src/linux-2.6 --with-ib=/usr/local/ibgd 

--with-ib-includes=/usr/local/ibgd/driver/infinihost/include 

--with-ib-libs=/usr/local/ibgd/driver/infinihost/lib64 

--with-gm=/opt/gm --with-gm-libs=/opt/gm/lib64 

 

 

configuration

1 server, 1 client

 

- Client mount command:

  mount -t pvfs2 ib://c0-10-ib:3335/pvfs2-fs /mnt/pvfs2

  

- server pvfs2-fs.conf:

<Aliases>

        Alias c0-10-ib ib://c0-10-ib:3335

</Aliases>

  

- pvfs2-server.conf-c0-10-ib: 

StorageSpace /state/pvfs-part/pvfs2-stoarge-space

HostID "ib://c0-10-ib:3335"

LogFile /tmp/pvfs2-server-ib1server.log

 

Test pvfs2-cp 

  [EMAIL PROTECTED] ~]# pvfs2-cp -t /state/partition1/testHY /mnt/pvfs2/5

  Wrote 429588480 bytes in 4.854962 seconds. 84.385318 MB/seconds

  [EMAIL PROTECTED] ~]# pvfs2-cp -t -b 8388608 /state/partition1/testHY
/mnt/pvfs2/aa

  Wrote 429588480 bytes in 5.449869 seconds. 75.173826 MB/seconds

[EMAIL PROTECTED] ~]# pvfs2-cp -t -b 4194304 /state/partition1/testHY
/mnt/pvfs2/bb

Wrote 429588480 bytes in 5.600240 seconds. 73.155347 MB/seconds

 

Test IB performance(usingperf_main)

  perf_main --send -trc -mbw -s10240 -n1000 

BW: 391.8 MBytes/sec [size: 10240 bytes, iter: 1000, total 10240000]

 

Regards,

Thank you in advance for valuable comments.

Hyeyoung cho

 

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