I realize this is an extremely open ended and vague question but I'm running an application that's doing some intense computation and taking forever and a half. Using strace I looked at what it was doing and I didn't know what to make of what I saw. I pasted it below-
% time seconds usecs/call calls errors syscall ------ ----------- ----------- --------- --------- ---------------- 57.97 0.053464 59 911 431 futex 35.74 0.032959 122 270 270 rt_sigsuspend 5.42 0.004995 178 28 28 epoll_wait 0.88 0.000813 1 550 tgkill 0.00 0.000000 0 4 mmap 0.00 0.000000 0 5 mprotect 0.00 0.000000 0 540 540 rt_sigreturn 0.00 0.000000 0 448 clock_gettime ------ ----------- ----------- --------- --------- ---------------- 100.00 0.092231 2756 1269 total Does anybody have an idea as to why it's spending so much time calling futex and rt_sigsuspend?
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