nickolai-voyage
/ gist:ae421f7c5fa879b2c9ba1ba2fe0bcc45
Created
April 26, 2019 21:48
Processor utilization of process as perfcentage
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| # Output CPU update, proccess stats, and system ticks/second all at once | |
| # Replace newlines with spaces, to be able to analyze the thing as a single line | |
| # Using awk, evaluate ((utime + stime)/CLK_TCK)/(uptime - starttime/CLK_TCK) | |
| cat /proc/uptime /proc/16901/stat <(getconf CLK_TCK) | tr '\n' ' ' | awk '{print (($16+$17)/$NF) / ($1 - $24/$NF)}' | |
| # $16 is utime | |
| # $17 is stime | |
| # $1 is uptime | |
| # $24 is start time | |
| # These numbers are from man page for /prod/[pid]/stat, but plus 2 since /proc/uptime is at the start of the line | |
| # NF refers to `getconf CLK_TCK` |
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