Benchmarks: AMD64 vs i386 on Dual 246 Opteron

[David Xu]

David Xu wrote:

> Peter Wemm wrote:
>
>> Mysql could also easily be affected by inefficiencies in the amd64
>> pthread libraries too.
>>
>>  
>>
> libthr on -CURRENT is very similar with Linux NPTL,  think of NPTL's
> throughput, the inefficiencies might be in our kernel.  Also the 
> bottleneck in
> userland might be malloc which does belongs to thread library,

sorry for typo, malloc is in libc.

> Linux has
> ptmalloc which is thread friendly.