Synopsis
timerfires [-s] [-v] [-g] [-t timeout-secs] -a | -p pid | -n process-name
Description
The timerfires utility lists timers as they fire.
The options are as follows:
-s: Show call stacks for "sleep"-type timers.-v: Show verbose output where applicable (e.g., additional details for CoreFoundation timers).-g: Aggregate timer output, showing counts instead of individual timer fires.
-t timeout-secs Run only for timeout-secs seconds; then exit.
-a: Analyze all timers without filtering by process. It is an error to specify -a with either -p or -n.-p pid: Analyze only timers from the process with process ID pid. It is an error to specify -p with either -a or -n.
-n process-name Analyze only timers from processes with name process-name. It is an error to specify -n with either -a or -p.
Sample Usage
timerfires -n MyApp -s -t 10
timerfires will run for ten seconds, displaying timer data for all instances of processes named "MyApp", including stacks.
OS X January 11, 2026 OS X