mysql performance test on FreeBSD-7.0-CURRENT

Hi all,

I would like to test mysql-5.0.18 (from ports) performance under 
FreeBSD-7.0-CURRENT.

gw# uname -an
FreeBSD gw.micom.mng.net 7.0-CURRENT FreeBSD 7.0-CURRENT #3: Thu Mar 23 
10:28:46 ULAT 2006     tsgan_at_gw.micom.mng.net:/usr/obj/usr/src/sys/GW  i386

I have few questions regarding this:
1. What malloc options should I use? phkmalloc or jemalloc? How can I 
use it?
2. What threading libraries should I try? (libmap.conf examples will be 
useful)
3. Is there anything should I consider when measuring the time? (maybe 
related to gettimeofday or kern.timecounter settings)
4. Does anybody have recent mysql performance test results under 
FreeBSD-7.0-CURRENT? If so what options and configurations are used?
5. Do I need any patches that aren't in source tree?
6. What testing program should I use? supersmack or something else?

I appreciate if somebody can guide me through all the steps that are 
required
for the test. I think if we create some sort of guide or faq, it would 
be very useful for not only me but also for others who may come later in 
this regard.

thanks in advance,

Ganbold