| .TH CPUTIME 3 | |
| .SH NAME | |
| cputime, times \- cpu time in this process and children | |
| .SH SYNOPSIS | |
| .B #include <u.h> | |
| .br | |
| .B #include <libc.h> | |
| .PP | |
| .ta \w'\fLdouble 'u | |
| .B | |
| int times(long t[4]) | |
| .PP | |
| .B | |
| double cputime(void) | |
| .SH DESCRIPTION | |
| If | |
| .I t | |
| is non-null, | |
| .I times | |
| fills it in | |
| with the number of milliseconds spent in user code, system calls, | |
| child processes in user code, and child processes in system calls. | |
| .I Cputime | |
| returns the sum of those same times, converted to seconds. | |
| .I Times | |
| returns the elapsed real time, in milliseconds, that the process has been running. | |
| .PP | |
| These functions read | |
| .BR /dev/cputime , | |
| opening that file when they are first called. | |
| .SH SOURCE | |
| .B /usr/local/plan9/src/libc/9sys | |
| .SH SEE ALSO | |
| .IR cons (3) |