| To: | jeremy.guthrie@xxxxxxxxxx |
|---|---|
| Subject: | Re: V2.4 policy router operates faster/better than V2.6 |
| From: | Robert Olsson <Robert.Olsson@xxxxxxxxxxx> |
| Date: | Wed, 12 Jan 2005 20:27:40 +0100 |
| Cc: | netdev@xxxxxxxxxxx, Robert Olsson <Robert.Olsson@xxxxxxxxxxx>, Stephen Hemminger <shemminger@xxxxxxxx>, Jesse Brandeburg <jesse.brandeburg@xxxxxxxxx> |
| In-reply-to: | <200501121025.03899.jeremy.guthrie@xxxxxxxxxx> |
| References: | <Pine.LNX.4.44.0501071416060.5818-100000@xxxxxxxxxxxxxxxxxxxxx> <200501111927.15574.jeremy.guthrie@xxxxxxxxxx> <16869.15931.324875.264756@xxxxxxxxxxxx> <200501121025.03899.jeremy.guthrie@xxxxxxxxxx> |
| Sender: | netdev-bounce@xxxxxxxxxxx |
Jeremy M. Guthrie writes:
> > > ETH3 Interrupts(calc'd from below): 1479968
> > Very strange...
> >
> > eth3 is bound to CPU0 which in turn has all packet load... If we were
> > to believe your CPU0 was saturated (due to the drops). We should see no
> > (RX) interrupts on eth3. But there is a lot... one irq per every three
> > packet. Why?
> I have no idea why it would be doing this.
Huh seems you didn't add the patch I sent. Below is diff from my editor to your
e1000_main.c
--ro
--- e1000_main.c.jmg 2005-01-12 20:14:08.324168072 +0100
+++ e1000_main.c 2005-01-12 20:17:24.777302656 +0100
@@ -2264,14 +2264,13 @@
netdev->quota -= work_done;
/* if no Rx and Tx cleanup work was done, exit the polling mode */
- if(!tx_cleaned || (work_done < work_to_do) ||
- !netif_running(netdev)) {
+ if( (!tx_cleaned && (work_done == 0)) || !netif_running(netdev)) {
quit_polling: netif_rx_complete(netdev);
e1000_irq_enable(adapter);
return 0;
}
- return (work_done >= work_to_do);
+ return 1;
}
#endif
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