Re: mysql performance tuning @ FreeBSD6

Michael Vince wrote: 
Joao Barros wrote:

On 1/26/06, Mike Jakubik <mikej@xxxxxxxxxx> wrote:


Rich Murphey wrote:
I'm curious whether Robert's patch might have an
effect on samba3 performance as well.
No real difference here, tried ACPI-fast, i8254, and TSC. :( My
transfers still average at 10MB/s (although it did peak at 20MB/s once)
Which is really horrible for a em gigabit link with jumbo frames
enabled. The performance of Samba on FreeBSD just stinks, for unknown
reasons.

No real difference here too...

I started a thread on that subject not long ago and following Robert's
tip setting net.inet.tcp.inflight.enable=0 yielded better results.

--
Joao Barros
_______________________________________________


With the new TCP/IP stack replacement and major updates to the em driver in FreeBSD -current this should all turn around. I believe I saw a cvs commit for em a little while ago saying the new em driver can achieve higher transfer rates then using em with polling enabled.
Hopefully this stuff will make it into 6.1-Release

Mike 

I'm using both polling on the em interfaces
and net.inet.tcp.inflight.enable=0 w/6.0 release.

Without these, I still see a a repeatable
10% or so increase when switching
from i8254 to TSC timecounter.

Cheers,
Rich


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