打开关闭文件频繁会导致CPU占用过高吗
发现一个进程占用CPU特别高，用 strace 看到以下一些内容，不知是不是和文件的频繁打开，写入，关闭有关？ M1N~,Ho Nj$[ z
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[code]
w4Bg Y f!~pLinux伊甸园论坛getpid() = 16796www.linuxeden.com7Y^
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open("/ignored/ignored/ignored.log", O_RDWR|O_APPEND|O_CREAT, 0666) = 5
$e%Vb#TK&},I'F(o gwww.linuxeden.comfstat64(5, {st_mode=S_IFREG|0664, st_size=8901290, ...}) = 0
Ty k5q _ omold_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x401ca000www.linuxeden.comE^+J&QI$Y5?.rI
write(5, "08-22(10:42:57)PID(16796)[DEBUG]"..., 107) = 107
@8LN-e-jclose(5) = 0
t4y1}#uq` m%smunmap(0x401ca000, 4096) = 02y#F$w-kAe
stat64("/ignored/ignored/ignored.log", {st_mode=S_IFREG|0664, st_size=8901594, ...}) = 0Linux伊甸园论坛_2o7m8I7X At ]+Fy#Xx
write(4, "\1demVbLixmX", 29) = 29
i.Pm4H"IJ^[read(4, "\1NMT4", 2048) = 9
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[2A"sclose(4) = 0 i,}7Z`
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time(NULL) = 1187750577Linux伊甸园论坛T]!C$cu
getpid() = 16796
1G a1y`/y^Fopen("/ignored/ignored/ignored.log", O_RDWR|O_APPEND|O_CREAT, 0666) = 4
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yfstat64(4, {st_mode=S_IFREG|0664, st_size=8903074, ...}) = 0www.linuxeden.comN fI;nm
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old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x401ca000mz z(Uv} Y
write(4, "08-22(10:42:57)PID(16796)[DEBUG]"..., 68) = 68'E#J,|"|(Vh R#E4F wo%K
close(4) = 0
)q \$F^3w q#u"imunmap(0x401ca000, 4096) = 0
6U't;E+x@;[ estat64("/ignored/ignored/ignored.log", {st_mode=S_IFREG|0664, st_size=8903528, ...}) = 0
Wq+jb!r#tQ$Ttime(NULL) = 1187750577
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S _WJ.nwww.linuxeden.comgetpid() = 16796%~"M{Y?+z` it(w
open("/ignored/ignored/ignored.log", O_RDWR|O_APPEND|O_CREAT, 0666) = 4];v9V5aJ lK8D"X$D-f
fstat64(4, {st_mode=S_IFREG|0664, st_size=8903528, ...}) = 0
] nO i+j1j#f sold_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x401ca000
-Pm'?Z7@!b+lcwrite(4, "08-22(10:42:57)PID(16796)[DEBUG]"..., 55) = 55Linux伊甸园论坛,V|!Cc;wF
close(4) = 0I"y-y4^"B9N$iD
mun
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