CPU 100%

[sunvangh]

system: Linux VM-0-17-centos 3.10.0-1127.13.1.el7.x86_64

After requesting wkhtmltox PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
3312 www 20 0 645000 37236 15892 S 100.0 1.0 1:08.01 php-fpm

strace -f -s 40 -t -T -o out -e trace=all -p 3312
vim out

11459 19:35:43 futex(0x7f5be7091254, FUTEX_WAIT_PRIVATE, 1, NULL <unfinished ...> 11461 19:35:43 select(21, [13 14 20], [], [], {tv_sec=30, tv_usec=850119} <unfinished ...> 8720 19:35:43 accept(5, <unfinished ...> 11461 19:35:43 <... select resumed>) = 1 (in [20], left {tv_sec=30, tv_usec=850116}) <0.000040> 11461 19:35:43 select(21, [13 14 20], [], [], {tv_sec=30, tv_usec=847801}) = 1 (in [20], left {tv_sec=30, tv_usec=847799}) <0.000007> 11461 19:35:43 select(21, [13 14 20], [], [], {tv_sec=30, tv_usec=847764}) = 1 (in [20], left {tv_sec=30, tv_usec=847762}) <0.000007> 11461 19:35:43 select(21, [13 14 20], [], [], {tv_sec=30, tv_usec=847728}) = 1 (in [20], left {tv_sec=30, tv_usec=847726}) <0.000007> 11461 19:35:43 select(21, [13 14 20], [], [], {tv_sec=30, tv_usec=847693}) = 1 (in [20], left {tv_sec=30, tv_usec=847691}) <0.000007> 11461 19:35:43 select(21, [13 14 20], [], [], {tv_sec=30, tv_usec=847657}) = 1 (in [20], left {tv_sec=30, tv_usec=847655}) <0.000007>

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