dtruss is a
dtrace script that is close in functionality to
strace on Linux.
Other scripts can be found in
# Show total number of syscalls per process, sorted by count. sudo syscallbyproc.d # Show total numbers of each syscall per process, sorted by count. sudo syscallbypid.d # strace-like monitoring of syscalls in a process. sudo dtruss -p 63856 # Same, logging to a file. sudo dtruss -p 63856 &> logfile