| To: | greear@xxxxxxxxxxxxxxx |
|---|---|
| Subject: | Re: NAPI-ized tulip patch against 2.4.20-rc1 |
| From: | Robert Olsson <Robert.Olsson@xxxxxxxxxxx> |
| Date: | Thu, 7 Nov 2002 22:26:04 +0100 |
| Cc: | jamal <hadi@xxxxxxxxxx>, Ben Greear <greearb@xxxxxxxxxxxxxxx>, Donald Becker <becker@xxxxxxxxx>, "'netdev@xxxxxxxxxxx'" <netdev@xxxxxxxxxxx> |
| In-reply-to: | <Pine.LNX.4.44.0211071013150.31376-100000@xxxxxxxxxxx> |
| References: | <Pine.GSO.4.30.0211070823590.11358-100000@xxxxxxxxxxxxxxxx> <Pine.LNX.4.44.0211071013150.31376-100000@xxxxxxxxxxx> |
| Sender: | netdev-bounce@xxxxxxxxxxx |
greear@xxxxxxxxxxxxxxx writes:
> On Thu, 7 Nov 2002, jamal wrote:
> > Trash the machines harder. Try using smaller packets;
>
> They are already dropping packets, I thought I'd try to get a slower run
> to work cleanly before trying something faster. Precision is more
> important to me than absolute throughput at this point.
If you need excessive buffering this gives latency and jitter which is
considered bad for network protocols and worse for test equipment.
> Initial run with 256 sized rx-ring (and skb-recycle) shows better
> performance (than with 1024 rx-ring)
Packet size? Expect eventual effects when there is very high pressure on
the packet memory system.
Cheers.
--ro
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