[proc] /proc/[pid]/stat

1. pid - Process id
2. comm - The executable filename
3. state - R (running), S(sleeping interruptable), D(sleeping), Z(zombie), or T(stopped on a signal).
4. ppid - Parent process ID
5. pgrp - Process group ID
6. session - The process session ID.
7. tty - The tty the process is using
8. tpgid - The process group ID of the owning process of the tty the current process is connected to.
9. flags - Process flags, currently with bugs
10. minflt - Minor faults the process has made
11. cminflt - Minor faults the process and its children have made.
12. majflt
13. cmajflt
14. utime - The number of jiffies (processor time) that this process has been scheduled in user mode
15. stime - in kernel mode
16. cutime - This process and its children in user mode
17. cstime - in kernel mode
18. counter - The maximum time of this processes next time slice.
19. priority - The priority of the nice(1) (process priority) value plus fifteen.
20. timeout - The time in jiffies of the process's next timeout.
21. itrealvalue - The time in jiffies before the next SIGALRM is sent to the process because of an internal timer.
22. starttime - Time the process started after system boot
23. vsize - Virtual memory size
24. rlim - Current limit in bytes of the rss of the process.
25. startcode - The address above which program text can run.
26. endcode - The address below which program text can run.
27. startstack - The address of the start of the stack
28. kstkesp - The current value of esp for the process as found in the kernel stack page.
29. kstkeip - The current 32 bit instruction pointer, EIP.
30. signal - The bitmap of pending signals
31. blocked - The bitmap of blocked signals
32. sigignore - The bitmap of ignored signals
33. sigcatch - The bitmap of catched signals
34. wchan - The channel in which the process is waiting. The "ps -l" command gives somewhat of a list

 출처 : http://www.comptechdoc.org/os/linux/howlinuxworks/linux_hlproc.html