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09-13-2005 01:41 PM
09-13-2005 01:41 PM
system call trace
I found process have much of cpu usage.
so i used tusc tool. but I don't know how can I handle it. could you check this and is there any ways to check tusc more efficiently?
this is tusc results.
[15210] nanosleep(0x4f0fb398, NULL) ....................................... = 0
[15210] nanosleep(0x4f0fb398, NULL) ....................................... = 0
[15210] nanosleep(0x4f0fb398, NULL) ....................................... = 0
[15210] nanosleep(0x4f0fb398, NULL) ....................................... = 0
[15210] nanosleep(0x4f0fb398, NULL) ....................................... = 0
[15210] poll(0x4edf5b80, 1, 4000) ......................................... = 0
[15210] sigprocmask(SIG_BLOCK, 0x77fbe018, 0x4edf5be4) .................... = 0
[15210] sigprocmask(SIG_SETMASK, 0x4edf5be4, NULL) ........................ = 0
[15210] sigprocmask(SIG_BLOCK, 0x77fbe018, 0x4edf5b9c) .................... = 0
[15210] sigprocmask(SIG_SETMASK, 0x4edf5b9c, NULL) ........................ = 0
[15210] nanosleep(0x4ea6e9d8, NULL) ....................................... = 0
[15210] nanosleep(0x4f0fb398, NULL) ....................................... = 0
[15210] open("/oracle10g/bizmax_HP10G/sysman/recv", O_RDONLY|0x200000, 07) = 79
[15210] fstat(79, 0x4ea6eb08) ............................................. = 0
[15210] fcntl(79, F_SETFD, 1) ............................................. = 0
[15210] getdents(79, 0x1b5f530, 8192) ..................................... = 72
[15210] getdents(79, 0x1b5f530, 8192) ..................................... = 0
[15210] close(79) ......................................................... = 0
[15210] poll(0x4eff9a40, 1, 4000) ......................................... = 0
[15210] sigprocmask(SIG_BLOCK, 0x77fbe018, 0x4eff9aa4) .................... = 0
[15210] sigprocmask(SIG_SETMASK, 0x4eff9aa4, NULL) ........................ = 0
[15210] sigprocmask(SIG_BLOCK, 0x77fbe018, 0x4eff9a5c) .................... = 0
[15210] sigprocmask(SIG_SETMASK, 0x4eff9a5c, NULL) ........................ = 0
[15210] nanosleep(0x4f0fb398, NULL) ....................................... = 0
[15210] nanosleep(0x4f0fb398, NULL) ....................................... = 0
[15210] ksleep(PTH_CONDVAR_OBJECT, 0x81450, 0x81458, 0x6af4e4a0) .......... = -ETIMEDOUT
[15210] gettimeofday(0x6af4e4a8, NULL) .................................... = 0
[15210] clock_gettime(CLOCK_REALTIME, 0x6af4e540) ......................... = 0
[15210] nanosleep(0x4f0fb398, NULL) ....................................... = 0
[15210] nanosleep(0x4f0fb398, NULL) ....................................... = 0
[15210] nanosleep(0x4e9eda58, NULL) ....................................... = 0
[15210] nanosleep(0x4f0fb398, NULL) ....................................... = 0
[15210] nanosleep(0x4f0fb398, NULL) ....................................... = 0
[15210] nanosleep(0x4f0fb398, NULL) ....................................... = 0
[15210] nanosleep(0x4f0fb398, NULL) ....................................... = 0
[15210] nanosleep(0x4f0fb398, NULL) ....................................... = 0
[15210] nanosleep(0x4f0fb398, NULL) ....................................... = 0
[15210] nanosleep(0x4f0fb398, NULL) ....................................... = 0
[15210] nanosleep(0x4f0fb398, NULL) ....................................... = 0
[15210] nanosleep(0x4f0fb398, NULL) ....................................... = 0
[15210] nanosleep(0x4f0fb398, NULL) ....................................... = 0
[15210] nanosleep(0x4f0fb398, NULL) ....................................... = 0
[15210] nanosleep(0x4f0fb398, NULL) ....................................... = 0
[15210] nanosleep(0x4f0fb398, NULL) ....................................... = 0
[15210] nanosleep(0x4f0fb398, NULL) ....................................... = 0
[15210] nanosleep(0x4f0fb398, NULL) ....................................... = 0
[15210] ksleep(PTH_CONDVAR_OBJECT, 0x81450, 0x81458, 0x6af4e4a0) .......... = -ETIMEDOUT
so i used tusc tool. but I don't know how can I handle it. could you check this and is there any ways to check tusc more efficiently?
this is tusc results.
[15210] nanosleep(0x4f0fb398, NULL) ....................................... = 0
[15210] nanosleep(0x4f0fb398, NULL) ....................................... = 0
[15210] nanosleep(0x4f0fb398, NULL) ....................................... = 0
[15210] nanosleep(0x4f0fb398, NULL) ....................................... = 0
[15210] nanosleep(0x4f0fb398, NULL) ....................................... = 0
[15210] poll(0x4edf5b80, 1, 4000) ......................................... = 0
[15210] sigprocmask(SIG_BLOCK, 0x77fbe018, 0x4edf5be4) .................... = 0
[15210] sigprocmask(SIG_SETMASK, 0x4edf5be4, NULL) ........................ = 0
[15210] sigprocmask(SIG_BLOCK, 0x77fbe018, 0x4edf5b9c) .................... = 0
[15210] sigprocmask(SIG_SETMASK, 0x4edf5b9c, NULL) ........................ = 0
[15210] nanosleep(0x4ea6e9d8, NULL) ....................................... = 0
[15210] nanosleep(0x4f0fb398, NULL) ....................................... = 0
[15210] open("/oracle10g/bizmax_HP10G/sysman/recv", O_RDONLY|0x200000, 07) = 79
[15210] fstat(79, 0x4ea6eb08) ............................................. = 0
[15210] fcntl(79, F_SETFD, 1) ............................................. = 0
[15210] getdents(79, 0x1b5f530, 8192) ..................................... = 72
[15210] getdents(79, 0x1b5f530, 8192) ..................................... = 0
[15210] close(79) ......................................................... = 0
[15210] poll(0x4eff9a40, 1, 4000) ......................................... = 0
[15210] sigprocmask(SIG_BLOCK, 0x77fbe018, 0x4eff9aa4) .................... = 0
[15210] sigprocmask(SIG_SETMASK, 0x4eff9aa4, NULL) ........................ = 0
[15210] sigprocmask(SIG_BLOCK, 0x77fbe018, 0x4eff9a5c) .................... = 0
[15210] sigprocmask(SIG_SETMASK, 0x4eff9a5c, NULL) ........................ = 0
[15210] nanosleep(0x4f0fb398, NULL) ....................................... = 0
[15210] nanosleep(0x4f0fb398, NULL) ....................................... = 0
[15210] ksleep(PTH_CONDVAR_OBJECT, 0x81450, 0x81458, 0x6af4e4a0) .......... = -ETIMEDOUT
[15210] gettimeofday(0x6af4e4a8, NULL) .................................... = 0
[15210] clock_gettime(CLOCK_REALTIME, 0x6af4e540) ......................... = 0
[15210] nanosleep(0x4f0fb398, NULL) ....................................... = 0
[15210] nanosleep(0x4f0fb398, NULL) ....................................... = 0
[15210] nanosleep(0x4e9eda58, NULL) ....................................... = 0
[15210] nanosleep(0x4f0fb398, NULL) ....................................... = 0
[15210] nanosleep(0x4f0fb398, NULL) ....................................... = 0
[15210] nanosleep(0x4f0fb398, NULL) ....................................... = 0
[15210] nanosleep(0x4f0fb398, NULL) ....................................... = 0
[15210] nanosleep(0x4f0fb398, NULL) ....................................... = 0
[15210] nanosleep(0x4f0fb398, NULL) ....................................... = 0
[15210] nanosleep(0x4f0fb398, NULL) ....................................... = 0
[15210] nanosleep(0x4f0fb398, NULL) ....................................... = 0
[15210] nanosleep(0x4f0fb398, NULL) ....................................... = 0
[15210] nanosleep(0x4f0fb398, NULL) ....................................... = 0
[15210] nanosleep(0x4f0fb398, NULL) ....................................... = 0
[15210] nanosleep(0x4f0fb398, NULL) ....................................... = 0
[15210] nanosleep(0x4f0fb398, NULL) ....................................... = 0
[15210] nanosleep(0x4f0fb398, NULL) ....................................... = 0
[15210] nanosleep(0x4f0fb398, NULL) ....................................... = 0
[15210] ksleep(PTH_CONDVAR_OBJECT, 0x81450, 0x81458, 0x6af4e4a0) .......... = -ETIMEDOUT
- Tags:
- tusc
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09-13-2005 02:06 PM
09-13-2005 02:06 PM
Re: system call trace
You need to use the -c option of tusc to get a count of each system call. You need to get some idea of the fraction of total time each system call is using. This behavior may be perfectly normal but tusc by itself is not that useful . You really need to combine it with Glance (or at least sar output) so that this can be put into context. Is your timeslice set to 1?
If it ain't broke, I can fix that.
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