MFC of UDP socket performance test

[Marcelo Gardini do Amaral]

Hi, 

I repeated that performance test done with bind [1] using now Robert's
MFC [2]. Another tweak that I was supposed to do was to use libthr
instead of libpthread (via libmap.conf) and build bind with threads
option. In the new test I did this.

I used the same methodology, same zone file and same server hardware
that I used in [3].


Server: Dell 1750 Xeon 3.06GHz
Bind 9.4.0 and NSD 3.0.4

Client: queryperf.c,v 1.8.192.3 2005/10/29 00:21:12
Dell Optiplex GX620
1M NS queries


                         bind 9.4.0	   bind 9.4.0	       NSD 3.0.4 
			(no threads)	(threads/libthr)    1 server forked
                        ------------    ---------------	    ---------------
OS / NIC                em      bge    	  em      bge  	    em	    bge
--------                --      ---       --      ---	    --	    ---

6.2-RELEASE-SMP         21258   12855     -       -	    -	    -

6.2-STABLE-SMP          21325   12538     -       -	    -	    -
(sosend_copyin patch)

6.2-STABLE-SMP          21631   12553     28512   12922	    31675   12673
(sosend_dgram patch)



Conclusions:

- I couldn't notice any difference using those patches. Maybe my test
  set is not adequate for that.

- Bind works better with libthr.

- "bge" NIC still doesn't work well for DNS servers on FreeBSD 6.2, as
  used to work on FreeBSD 4.11. Even "em" NIC does not have the same
  performance that used to has on 4.11.


[1] http://lists.freebsd.org/pipermail/freebsd-net/2006-September/011748.html
[2] http://lists.freebsd.org/pipermail/freebsd-performance/2007-March/002527.html
[3] http://lists.freebsd.org/pipermail/freebsd-net/2006-September/011767.html


-- 
Att.,

Marcelo Gardini
NIC .br