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dtruss 是什么
参见strace
dtruss 的用法
lru@mac $ dtruss --help
/usr/bin/dtruss: illegal option -- -
USAGE: dtruss [-acdefholLs] [-t syscall] { -p PID | -n name | command | -W name }
-p PID # examine this PID
-n name # examine this process name
-t syscall # examine this syscall only
-W name # wait for a process matching this name
-a # print all details
-c # print syscall counts
-d # print relative times (us)
-e # print elapsed times (us)
-f # follow children
-l # force printing pid/lwpid
-o # print on cpu times
-s # print stack backtraces
-L # don't print pid/lwpid
-b bufsize # dynamic variable buf size
eg,
dtruss df -h # run and examine "df -h"
dtruss -p 1871 # examine PID 1871
dtruss -n tar # examine all processes called "tar"
dtruss -f test.sh # run test.sh and follow children
- 使用dtruss调试进程
lru@mac $ dtruss -c -p 61397
- 注意事项
lru@mac $ dtruss -c -p 61397
dtrace: failed to initialize dtrace: DTrace requires additional privileges
lru@mac $ sudo dtruss -c -p 61397
dtrace: failed to initialize dtrace: DTrace requires additional privileges
-- end --
