Trace

strace -e trace=network

# file
strace -f -e open ls 2>&1 | grep ^open\( | grep “[[:digit:]]\+$” | cut -d\” -f2
strace -f -p $(pidof java)
# syscall
ltrace -c ls

strace	for
-c
-f
-p PID
-P /tmp
-T	耗时
-e trace=	ipc,memory, network, file, signal, process

• file
  • access
  • close
  • fchmod
  • fchown
  • fstat
  • lseek
  • open
  • read
  • statfs - fs 相关信息
• network
  • bind
  • listen
  • socket
  • setsocketopt
• memory
  • mmap
  • munmap