Re: Malloc scaling/speedup work, request for testers/reviews

[Dylan Reinhold <dylan@xxxxxxxxxxxxxxxx>]

Venkatesh Srinivas wrote:
> Hiya,
>
> I've been working for some time on improving the libc malloc in
> DragonFly, specifically improving its thread scaling and reducing the
> number of mmap/munmap system calls it issues.
>
>
>   

Venkatesh,
 I ran a quick test on one of my machines. I used the LD_PRELOAD
I ran with 10,000 calls 1-1000 blocks, it shaved ~21 seconds off the the 
time.
The system is a AMD Athlon(tm) XP 1800+ (1493.66-MHz) / with 512megs of 
ram).
I tried with your 50,000 and 1-1,512 block size, but the system ran out 
of memory/swap and the utility died.


Pre -
dylan@backup_a:~/malloc$ ./sh6bench
call count [1000]: 10000
min block size [1]: 1
max block size [1000]:
Total elapsed time: 52.00 (51.5938 CPU)

Post -
dylan@backup_a:~/malloc$ ./sh6bench
call count [1000]: 10000
min block size [1]:
max block size [1000]:
Total elapsed time: 31.00 (30.9297 CPU)


Regards,
Dylan