Am 26.07.2012 00:37, schrieb Ali Çehreli:
On 07/25/2012 03:26 PM, David wrote:
Am 26.07.2012 00:12, schrieb Ali Çehreli:
On 07/24/2012 11:38 AM, David wrote:
> Well this change decreases my performance by 1000%.
Random guess: CPU cache misses?
Ali
You're the 2nd one mentioning this, any ideas how to check this?
I have no experience. Pages like this look promising:
http://stackoverflow.com/questions/2486840/linux-c-how-to-profile-time-wasted-due-to-cache-misses
Ali
From what I've seen everything is ok (I used `perf top -e
L1-dcache-load-misses -e L1-dcache-loads` to see the hotspots, nothing
too bad)
