| To: | sim@xxxxxxxxxxxxx |
|---|---|
| Subject: | Re: Route cache performance under stress |
| From: | "David S. Miller" <davem@xxxxxxxxxx> |
| Date: | Thu, 22 May 2003 17:59:38 -0700 (PDT) |
| Cc: | netdev@xxxxxxxxxxx, linux-net@xxxxxxxxxxxxxxx, kuznet@xxxxxxxxxxxxx |
| In-reply-to: | <20030522114438.GD2961@netnation.com> |
| References: | <20030522.015815.91322249.davem@redhat.com> <20030522.034058.71558626.davem@redhat.com> <20030522114438.GD2961@netnation.com> |
| Sender: | netdev-bounce@xxxxxxxxxxx |
From: Simon Kirby <sim@xxxxxxxxxxxxx> Date: Thu, 22 May 2003 04:44:38 -0700 There's no APIC on this test box, so it's using the XT-PIC. Production has an APIC, so I assume the overhead would be less there. It is absolutely critical for routing throughput. XT-PIC overhead severely limits your maximum packets/second switching rate. Another thing to watch out for are drivers still using PIO to access device registers (3c59x comes to mind). |
| Previous by Date: | Anyone having problem modify incoming IP packets at NetFilter Hoo k Module PREROUTING?, Wai Yim |
|---|---|
| Next by Date: | Re: Route cache performance under stress, David S. Miller |
| Previous by Thread: | Re: Route cache performance under stress, Simon Kirby |
| Next by Thread: | Re: Route cache performance under stress, Florian Weimer |
| Indexes: | [Date] [Thread] [Top] [All Lists] |