New malloc ready, take 42

Jason Evans jasone at
Wed Dec 28 21:00:10 PST 2005

On Dec 28, 2005, at 8:52 PM, David Xu wrote:
> Jason Evans wrote:
>> So, how about it?  Is jemalloc ready to go in now?
>> Thanks,
>> Jason
> I have tested super-smack with your patch on my Pentium-D machine:
> CPU   : P4 dual-core 2.8Ghz
> Memory: 1G bytes
> I am using libthr.
> phkmalloc can reach about 21000 query-per-s.
> jemalloc can only reach about 15000 query-per-s,
> about 28% performance is dropped.

That is a much different result than Kris Kennaway got on a dual-dual  
Opteron system, as well as my results on a 3.2 GHz P4.  Can you  
please provide details on what version of the jemalloc patch you  
used, which MALLOC_OPTIONS flags you used, what parameters you  
specified to super-smack, etc.?

A Pentium-D should behave similarly to two single-core CPUs, right?


More information about the freebsd-current mailing list