Re: [openib-general] Re: [PATCH 07/16] ehca: interrupt handling routines

From: Michael S. Tsirkin
Date: Tue May 09 2006 - 14:45:36 EST


Quoting r. Shirley Ma <xma@xxxxxxxxxx>:
> According to some results from different resouces, NAPI only gives 3%-10% performance improvement on single CQ.

When you say performance you mean bandwidth.
But I think it should improve the CPU utilization on RX side significantly.
If it does, that an important metric as well.

> I am trying a simple NAPI patch on splitting CQ now to see how much performance there.

What are you using for a benchmark?

--
MST
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/