Hi Hal,
Hal Rosenstock wrote:
Hi Sumit,
On Wed, 2008-06-25 at 12:11 +0530, Sumit Gaur - Sun Microsystem wrote:
Hi Hal/Sashak,
Hal Rosenstock wrote:
Hi Sumit,
On Tue, 2008-06-24 at 14:21 +0530, Sumit Gaur - Sun Microsystem wrote:
Hi,
I am using OFED 2.5.*
^^^^^
1.2.5.* ?
Sorry for typo .. it is 1.2.5.*
and observing that my SMI requests are serving very fast
and response time is very less on the contrary my GSI requests were served in
more time and response time sometime goes more than 2 sec. Any light on this
different behavior.
What are the specific GS requests which are slow in response ? Are they
compute intensive ?
I am sending only request for
rpc.mgtclass = IB_PERFORMANCE_CLASS;
rpc.method = IB_MAD_METHOD_GET;
at every one second.
In general, there are a few possibilities (which can cause this). SM
traffic is VL15 whereas GS traffic is on a data VL (usually VL0 in most
subnets).
Some possibilities are:
1. Timeout/retry being hit for some GS traffic (GS request or response
lost/corrupted)
Yes, this is also happening, Sometimes I am getting corrupt data back,
Is there an error indicated ?
For such packets I am getting umad_status as 110.
and if I retry to send same request again it fails or send corrupted data back
again.
2. Data VL busy (is there anything else utilizing VL0 ?)
Not sure about it. Is there anything to verify it?
There's an optional counter not commonly implemented so maybe starting
by verifying all the PortCounters along the path from requester to
responder to see whether there are any low level issues with your
subnet.
_______________________________________________
general mailing list
[email protected]
http://lists.openfabrics.org/cgi-bin/mailman/listinfo/general
To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
