cvs commit: src/sys/vm uma_core.c uma_int.h

[Robert Watson]

On Thu, 14 Jul 2005, Jeff Roberson wrote:

> Are you interested in getting those cache improvements into the tree? 
> The alloc/free to the same bucket change?

I am quite interested in them, but have not yet been able to measure a 
statistically significant improvement with them for the couple of 
micro-benchmarks I had easily on-hand.  There was some measurable change 
in variance though.  I hope to have a chance to look at them more closely 
in the next week or two.  With Joseph Koshy's hwpmc support now working 
with gprof, we should be able to look a lot more closely at how the caches 
are interacting with various bits of code.

Robert N M Watson

>
> On Thu, 14 Jul 2005, Robert Watson wrote:
>
>> rwatson     2005-07-14 16:17:21 UTC
>> 
>>  FreeBSD src repository
>> 
>>  Modified files:
>>    sys/vm               uma_core.c uma_int.h
>>  Log:
>>  In addition to tracking allocs in the zone, also track frees.  Add
>>  a zone free counter, as well as a cache free counter.
>> 
>>  MFC after:      1 week
>> 
>>  Revision  Changes    Path
>>  1.121     +5 -0      src/sys/vm/uma_core.c
>>  1.32      +2 -0      src/sys/vm/uma_int.h
>> 
>