The number of results defaults to 25 processes, butĬan be changed using the -c/ -count option.

You can also sort based on total time, # of system calls made, PID #, and # of child processes How to use the toolįirst run the tool with summary flag to get a summary of the top processes sorted by time spent actively performing tasks. Or you can build it from source if you have the Rust compiler.

It is similar to strace -C,īut provides much more detailed statistics. Provide a high level summary of the strace output. We have a series of GitLab Unfiltered videos on using strace to understand GitLab.Brendan Gregg has a more detailed explanation of how to use strace.See the strace zine for a quick walkthrough.# strace a process strace -tt -T -f -y -yy -s 1024 -p # -tt print timestamps with microsecond accuracy # -T print the time spent in each syscall # -f also trace any child processes that forked # -y print the path associated with file handles # -yy print socket and device file handle details # -s max string length to print for an event # -o output file # run strace on all puma processes ps auwx | grep puma | awk '' | xargs strace -tt -T -f -y -yy -s 1024 -o /tmp/puma.txtīe aware that strace can have major impacts to system performance when it is running.

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