Virtual memory consumption (both user and kernel) in modern CURRENT

[Mike Jakubik]

Jason Evans wrote:
> On Feb 17, 2006, at 10:34 AM, Mike Jakubik wrote:
>>
>> Great, too bad only 2% of my applications are threaded. I just don't 
>> see this change very positively, using 40MB of swap, where before was 
>> none does not seem to me like a speed improvement. I'm all for better 
>> performance of threaded apps, but the trade off seems too high.
>
> Are redzones enabled?  (They are turned on by default in CURRENT.)  
> You can check by reading the output from something like:
>
>     MALLOC_OPTIONS=P ls
>
> Keep in mind that they use up substantial extra memory -- 32 bytes per 
> allocation.  Unless you have disabled redzones, you should expect much 
> higher memory usage with jemalloc than with phkmalloc.

___ Begin malloc statistics ___
Number of CPUs: 1
Number of arenas: 1
Cache slots: 256
Chunk size: 16777216 (2^24)
Quantum size: 16 (2^4)
Pointer size: 4
Number of bins: 128
Maximum bin size: 2096
Assertions enabled
Redzone size: 16
Allocated: 22272, space used: 33554432


Does this mean they are enabled? and if so, how can i disable them? 
Which malloc is in -current now?