[ofw] Programatically checking Infiniband performance counters

[Moshe Haim]

Thanks for the quick reply.

 

I have a few additional questions:

Looking at the ib_port_counters_t structure I see several fields.

The port_xmit_data looks like transferred the data in bytes divided by 4
- however, it is only 32 bit so it fills up very fast (after 16GB).

The port_xmit_pkts looks like transferred data in 1KB packets - so it
fills up more slowly:

1. Can I rely on the packet size being 1KB - if not where can I find the
packet size definition. 

2. How can I reset the counters to 0? I tried using ib_local_mad with
setting the port_xmit_pkts/port_xmit_data to 0 and use mad->method =
IB_MAD_METHOD_SET but that doesn't seem to work...
I need this since I expect to run for long periods of time and even the
port_xmit_pkts will hit its limit.

 

Last but not least, is there any plan to add performance counters in
windows for WinOF in the future?

 

Thanks,

Moshe.

 

________________________________

From: Tzachi Dar [mailto:tzachid at mellanox.co.il] 
Sent: Sunday, April 27, 2008 5:51 PM
To: Moshe Haim; ofw at lists.openfabrics.org
Subject: RE: [ofw] Programatically checking Infiniband performance
counters

 

Using performance counters currently only allows one to get WSD data.
Since you are working on XP that won't help you. You can use the same
way that vstat is doing to get that data.

In other words, you need to implement the function vstat_get_counters()
that is using a local mad in order to get that data.

 

You can find this function in the file vstat_main.c (lines 343 - 393)

 

Thanks

Tzachi

	 

	
________________________________


	From: ofw-bounces at lists.openfabrics.org
[mailto:ofw-bounces at lists.openfabrics.org] On Behalf Of Moshe Haim
	Sent: Sunday, April 27, 2008 5:09 PM
	To: ofw at lists.openfabrics.org
	Subject: [ofw] Programatically checking Infiniband performance
counters

	Hi,

	 

	I am working with Infiniband on Windows XP using the WinOF_1.0.1
package.

	I need to be able to check the Infiniband performance counters
in order to estimate traffic over the Infiniband.

	 

	I have seen that using vstat -c the counter information appears.

	How can I retrieve it not using vstat.exe? Are there any
performance counters I can check (for instance select them in
perfmon.exe?), or any other APIs?

	 

	Thanks,

	Moshe.

	 

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