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標題:
哪位大俠給分析一下 strace 輸出
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作者:
hua_xg
時間:
2008-09-03 16:12
標題:
哪位大俠給分析一下 strace 輸出
suse linux 下 一個c 程序,啟動后用 strace -f -p 跟蹤了一下,本來程序啟動應該只有2個線程,可輸出說有8個,不知道那些線程是怎么回事,哪位高人給指點一二
輸出是:
strace -f -p 7314
Process 7321 attached with 8 threads - interrupt to quit
[pid 7314] time( <unfinished ...>
[pid 7315] read(7, <unfinished ...>
[pid 7316] futex(0x80d5204, FUTEX_WAIT, 3, NULL <unfinished ...>
[pid 7317] futex(0x80d5204, FUTEX_WAIT, 3, NULL <unfinished ...>
[pid 7318] futex(0x80d5204, FUTEX_WAIT, 3, NULL <unfinished ...>
[pid 7319] poll( <unfinished ...>
[pid 7320] accept(6, <unfinished ...>
[pid 7321] setup( <unfinished ...>
[pid 7314] <... time resumed> NULL) = 1220428832
[pid 7314] stat64("/etc/localtime", {st_mode=S_IFREG|0644, st_size=165, ...}) = 0
[pid 7314] uname({sys="Linux", node="linux", ...}) = 0
[pid 7314] write(5, "Sep 03 16:00:32 linux: src/sigha"..., 82) = 82
[pid 7314] rt_sigtimedwait([HUP INT TERM], <unfinished ...>
作者:
linuxosa
時間:
2008-09-03 17:25
標題:
回復 #1 hua_xg 的帖子
pthread library 也會啟動一些線程
作者:
hua_xg
時間:
2008-09-03 17:39
標題:
回復 #2 linuxosa 的帖子
哦,明白了,strace 挖的還挺深,謝了~~~
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