Subject: Re: b44: regression in 2.6.22 (resend)

From: Michael Buesch <[email-masked]>
Date: Sun, 27 May 2007 21:45:00 +0200

On Sunday 27 May 2007 21:25:17 Maximilian Engelhardt wrote:
> 2.6.22-rc3:
> 
> [  5] local 192.168.1.2 port 46557 connected with 192.168.1.1 port 5001
> [  5]  0.0-60.4 sec  58.9 MBytes  8.18 Mbits/sec
> [  4] local 192.168.1.2 port 5001 connected with 192.168.1.1 port 51633
> [  4]  0.0-63.1 sec  7.27 MBytes    967 Kbits/sec

Why do we have two different measurements here? Is one TX and one RX?
Which one?

> koala:~# ping -c10 192.168.1.1
> PING 192.168.1.1 (192.168.1.1) 56(84) bytes of data.
> 64 bytes from 192.168.1.1: icmp_seq=1 ttl=64 time=0.243 ms
> 64 bytes from 192.168.1.1: icmp_seq=2 ttl=64 time=0.234 ms
> 64 bytes from 192.168.1.1: icmp_seq=3 ttl=64 time=0.238 ms
> 64 bytes from 192.168.1.1: icmp_seq=4 ttl=64 time=0.235 ms
> 64 bytes from 192.168.1.1: icmp_seq=5 ttl=64 time=0.230 ms
> 64 bytes from 192.168.1.1: icmp_seq=6 ttl=64 time=0.317 ms
> 64 bytes from 192.168.1.1: icmp_seq=7 ttl=64 time=0.232 ms
> 64 bytes from 192.168.1.1: icmp_seq=8 ttl=64 time=0.232 ms
> 64 bytes from 192.168.1.1: icmp_seq=9 ttl=64 time=0.228 ms
> 64 bytes from 192.168.1.1: icmp_seq=10 ttl=64 time=0.238 ms
> 
> --- 192.168.1.1 ping statistics ---
> 10 packets transmitted, 10 received, 0% packet loss, time 8997ms
> rtt min/avg/max/mdev = 0.228/0.242/0.317/0.031 ms
> 
> System responsiveness was the same as with 2.6.21.1.
> 
> wget got 11.23M/s, again same as 2.6.21.1.
> 
> 
> 2.6.22-rc2-mm1:
> 
> [  5] local 192.168.1.2 port 42198 connected with 192.168.1.1 port 5001
> [  5]  0.0-60.1 sec    402 MBytes  56.1 Mbits/sec
> [  4] local 192.168.1.2 port 5001 connected with 192.168.1.1 port 48598
> [  4]  0.0-63.0 sec    177 MBytes  23.6 Mbits/sec

So with -mm (with ssb) you actually get better performace
then with plain 2.6.22-rc3?

Can you elaborate a bit more about what you get an what you expect
on which kernel?

-- 
Greetings Michael.