Epsylon3, thank you for your soft!

I tried reduce CPU load by adding usleep(ms) function in cryptonight algo, but I always get stratum-errors:

I read that stratum-connection close after 60-90 sec idle, but stratum-connection runned in other thread isn't it? May be sleep blocking stratum-thread and I need some non-blocking sleep?

May be I add sleep in wrong place?
I add it in file ./algo/cryptonight.c function name "cryptonight_hash_ctx", in cycle:

I also tried nanosleep() and cgsleep_ms() from cgminer with same result

Please, help!