[openib-general] Re: [openib-commits] r2480 - gen2/trunk/src/userspace/perftest

Michael S. Tsirkin mst at mellanox.co.il
Tue Jun 7 22:50:30 PDT 2005


Quoting r. Grant Grundler <iod00d at hp.com>:
> Subject: Re: [openib-commits] r2480 - gen2/trunk/src/userspace/perftest
> 
> On Sun, Jun 05, 2005 at 12:34:22AM +0300, Michael S. Tsirkin wrote:
> > Weird. What does this error mean? Could you try debugging it?
> 
> I tried it again today and it worked.
> I updated to and am running SVN 2525.
> 
> grundler at iota:/usr/src/openib_gen2/src/userspace/perftest$ ./rdma_bw -C 10.0.0.51
>   local address:  LID 0x06, QPN 0xa0406, PSN 0x8fdf4e RKey 0x3c0434 VAddr 0x6000000000014001
>   remote address: LID 0x04, QPN 0xc0406, PSN 0x4e0787, RKey 0x480434 VAddr 0x6000000000014001
> Bandwidth peak (#1 to #999): 3.11048e-10 MByte/cycles
> Bandwidth average: 3.10762e-10 MByte/cycles
> 
> The numbers (MByte/cycles) don't mean anything to me.
> Can we report this as cycles/MB (or KB) instead? (aka Service Demand)

Sure. Patch?

> The other metric I care about is MB/s.
> 
> thanks,
> grant
> 

Dont pass -C then.

-- 
MST



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