[Fwd: Re: Making pool 3 times faster on WIN32]

[Bill Stoddard]

Failed to cc dev@
--- Begin Message ---
Mladen Turk wrote:
Hi,
If my tests are correct the following patch makes the pool allocation
tree times faster on WIN32 (at least for 1 million
32 bytes allocations).
Not sure what's the total httpd's time spent for palloc,
but I suppose it's quite a large value.
I saw no significant difference serving a 500 byte file:
ab -n 10000 -c 10 127.0.0.1/file500.html
w/o patch (3 runs): 853/849/832
w/patch (3 runs)  : 829/826/828
ab -k -n 10000 -c 10 127.0.0.1/file500.html
w/o patch (3 runs): 4026/3950/4010
w/patch (3 runs)  : 4143/4092/3885
Keep in mind that the whole idea behind APR pools is to minimize calls to the native memory allocators 
(malloc/heap).  If your benchmark recycled the pool each time you did an allocation, the 3x difference is not 
suprising, but that is a somewhat artifical benchmark imho.

Bill
--- End Message ---