Re: My vote against eepro* removal

From: Lee Revell
Date: Thu Jan 19 2006 - 02:23:24 EST


On Thu, 2006-01-19 at 08:19 +0100, kus Kusche Klaus wrote:
> Last time I tested (around 2.6.12), eepro100 worked much better
> in -rt kernels w.r.t. latencies than e100:
>
> e100 caused a periodic latency of about 500 microseconds
> exactly every 2 seconds, no matter what the load on the interface
> was (i.e. even on an idle interface).
>
> eepro100 did not show any latencies that long, it worked much
> smoother w.r.t. latencies.
>
> Of course I would prefer to have e100 fixed over keeping eepro100
> around forever, but the last time I checked, it still wasn't fixed.

Please provide latency traces to illustrate the problematic code path.

It sounds like you have known about this issue for a while, were you
waiting for it to fix itself?

Lee

-
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/