cvs commit: src/sys/kern kern_descrip.c

[Julian Elischer]

Jeremie Le Hen wrote:
> Hi Jeff,
> 
> On Tue, Jul 03, 2007 at 02:27:51PM -0700, Jeff Roberson wrote:
>>  For the curious, these last two patches make a substantial improvement to 
>>  mysql write performance on my 8way opteron:
>>
>>  http://people.freebsd.org/~jeff/mysqlwrite.png
>>
>>  The green line is without and the blue line is with.
> 
> Just for information, do you have any hint why Linux eventually
> performs better above 18 threads?

I think that is the wrong question..
the question is "why do we drop off after 8?"
which I'm sure Jeff is already working on.

> 
> Thank you for your work.
> Best regards,