23,217
社区成员
发帖
与我相关
我的任务
分享请发表友善的回复…
发表回复
xiaozhu540 2010-04-29
- 打赏
- 举报
学习一下，谢谢
wangzhangyong411 2008-03-21
- 打赏
- 举报
谢谢
blackbillow 2008-03-20
- 打赏
- 举报
/proc/[number]/stat
Status information about the process. This is used by ps(1). It is defined in
/usr/src/linux/fs/proc/array.c.
Status information about the process. This is used by ps(1). It is defined in
/usr/src/linux/fs/proc/array.c.
sucker2000 2008-03-20
- 打赏
- 举报
man 5 proc
你找得该是starttime
The fields, in order, with their proper scanf(3) format specifiers, are:
pid %d The process ID.
comm %s
The filename of the executable, in parentheses. This is visible whether or not the
executable is swapped out.
state %c
One character from the string "RSDZTW" where R is running, S is sleeping in an inter-
ruptible wait, D is waiting in uninterruptible disk sleep, Z is zombie, T is traced or
stopped (on a signal), and W is paging.
ppid %d
The PID of the parent.
pgrp %d
The process group ID of the process.
session %d
The session ID of the process.
tty_nr %d
The tty the process uses.
tpgid %d
The process group ID of the process which currently owns the tty that the process is
connected to.
flags %lu
The kernel flags word of the process. For bit meanings, see the PF_* defines in
<linux/sched.h>. Details depend on the kernel version.
minflt %lu
The number of minor faults the process has made which have not required loading a mem-
ory page from disk.
cminflt %lu
The number of minor faults that the process's waited-for children have made.
majflt %lu
The number of major faults the process has made which have required loading a memory
page from disk.
cmajflt %lu
The number of major faults that the process's waited-for children have made.
utime %lu
The number of jiffies that this process has been scheduled in user mode.
stime %lu
The number of jiffies that this process has been scheduled in kernel mode.
cutime %ld
The number of jiffies that this process's waited-for children have been scheduled in
user mode. (See also times(2).)
cstime %ld
The number of jiffies that this process's waited-for children have been scheduled in
kernel mode.
priority %ld
The standard nice value, plus fifteen. The value is never negative in the kernel.
nice %ld
The nice value ranges from 19 (nicest) to -19 (not nice to others).
0 %ld This value is hard coded to 0 as a placeholder for a removed field.
itrealvalue %ld
The time in jiffies before the next SIGALRM is sent to the process due to an interval
timer.
starttime %lu
The time in jiffies the process started after system boot.
vsize %lu
Virtual memory size in bytes.
rss %ld
Resident Set Size: number of pages the process has in real memory, minus 3 for adminis-
trative purposes. This is just the pages which count towards text, data, or stack
space. This does not include pages which have not been demand-loaded in, or which are
swapped out.
rlim %lu
Current limit in bytes on the rss of the process (usually 4294967295 on i386).
startcode %lu
The address above which program text can run.
endcode %lu
The address below which program text can run.
startstack %lu
The address of the start of the stack.
kstkesp %lu
The current value of esp (stack pointer), as found in the kernel stack page for the
process.
kstkeip %lu
The current EIP (instruction pointer).
signal %lu
The bitmap of pending signals.
blocked %lu
The bitmap of blocked signals.
sigignore %lu
The bitmap of ignored signals.
sigcatch %lu
The bitmap of caught signals.
wchan %lu
This is the "channel" in which the process is waiting. It is the address of a system
call, and can be looked up in a namelist if you need a textual name. (If you have an
up-to-date /etc/psdatabase, then try ps -l to see the WCHAN field in action.)
nswap %lu
Number of pages swapped (not maintained).
cnswap %lu
Cumulative nswap for child processes (not maintained).
exit_signal %d
Signal to be sent to parent when we die.
processor %d
CPU number last executed on.
rt_priority %lu (since kernel 2.5.19)
Real-time scheduling priority (see sched_setscheduler(2)).
policy %lu (since kernel 2.5.19)
Scheduling policy (see sched_setscheduler(2))
你找得该是starttime
The fields, in order, with their proper scanf(3) format specifiers, are:
pid %d The process ID.
comm %s
The filename of the executable, in parentheses. This is visible whether or not the
executable is swapped out.
state %c
One character from the string "RSDZTW" where R is running, S is sleeping in an inter-
ruptible wait, D is waiting in uninterruptible disk sleep, Z is zombie, T is traced or
stopped (on a signal), and W is paging.
ppid %d
The PID of the parent.
pgrp %d
The process group ID of the process.
session %d
The session ID of the process.
tty_nr %d
The tty the process uses.
tpgid %d
The process group ID of the process which currently owns the tty that the process is
connected to.
flags %lu
The kernel flags word of the process. For bit meanings, see the PF_* defines in
<linux/sched.h>. Details depend on the kernel version.
minflt %lu
The number of minor faults the process has made which have not required loading a mem-
ory page from disk.
cminflt %lu
The number of minor faults that the process's waited-for children have made.
majflt %lu
The number of major faults the process has made which have required loading a memory
page from disk.
cmajflt %lu
The number of major faults that the process's waited-for children have made.
utime %lu
The number of jiffies that this process has been scheduled in user mode.
stime %lu
The number of jiffies that this process has been scheduled in kernel mode.
cutime %ld
The number of jiffies that this process's waited-for children have been scheduled in
user mode. (See also times(2).)
cstime %ld
The number of jiffies that this process's waited-for children have been scheduled in
kernel mode.
priority %ld
The standard nice value, plus fifteen. The value is never negative in the kernel.
nice %ld
The nice value ranges from 19 (nicest) to -19 (not nice to others).
0 %ld This value is hard coded to 0 as a placeholder for a removed field.
itrealvalue %ld
The time in jiffies before the next SIGALRM is sent to the process due to an interval
timer.
starttime %lu
The time in jiffies the process started after system boot.
vsize %lu
Virtual memory size in bytes.
rss %ld
Resident Set Size: number of pages the process has in real memory, minus 3 for adminis-
trative purposes. This is just the pages which count towards text, data, or stack
space. This does not include pages which have not been demand-loaded in, or which are
swapped out.
rlim %lu
Current limit in bytes on the rss of the process (usually 4294967295 on i386).
startcode %lu
The address above which program text can run.
endcode %lu
The address below which program text can run.
startstack %lu
The address of the start of the stack.
kstkesp %lu
The current value of esp (stack pointer), as found in the kernel stack page for the
process.
kstkeip %lu
The current EIP (instruction pointer).
signal %lu
The bitmap of pending signals.
blocked %lu
The bitmap of blocked signals.
sigignore %lu
The bitmap of ignored signals.
sigcatch %lu
The bitmap of caught signals.
wchan %lu
This is the "channel" in which the process is waiting. It is the address of a system
call, and can be looked up in a namelist if you need a textual name. (If you have an
up-to-date /etc/psdatabase, then try ps -l to see the WCHAN field in action.)
nswap %lu
Number of pages swapped (not maintained).
cnswap %lu
Cumulative nswap for child processes (not maintained).
exit_signal %d
Signal to be sent to parent when we die.
processor %d
CPU number last executed on.
rt_priority %lu (since kernel 2.5.19)
Real-time scheduling priority (see sched_setscheduler(2)).
policy %lu (since kernel 2.5.19)
Scheduling policy (see sched_setscheduler(2))
wangzhangyong411 2008-03-20
- 打赏
- 举报
/proc/[number]/stat
Status information about the process
这个我也知道
里面哪一部分是指进程启动时间呀？
谢谢
Status information about the process
这个我也知道
里面哪一部分是指进程启动时间呀？
谢谢
szduweibing 2008-03-20
- 打赏
- 举报
t1 = (unsigned long)time(NULL);
littlefirebug 2008-03-20
- 打赏
- 举报
/proc/[number]/stat
Status information about the process
Status information about the process
wangzhangyong411 2008-03-20
- 打赏
- 举报
程序里。。。函数。。。
littlefirebug 2008-03-20
- 打赏
- 举报
ps -o start_time
