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How do I measure separate CPU core usage for a process?
...${pids[@]}"; do
if [ ! -e /proc/$pid ]; then
echo "Error: pid $pid doesn't exist"
exit 1
fi
done
while [ true ]; do
echo -e "\033[H\033[J"
for pid in "${pids[@]}"; do
ps -p $pid -L -o pid,tid,psr,pcpu,comm=
done...
What does the 'L' in front a string mean in C++?
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edited Jun 17 '11 at 10:05
answered Jun 17 '11 at 9:57
ka...
undefined reference to `WinMain@16'
... x.cpp user32.lib /link /subsystem:windows
x.cpp
LIBCMT.lib(wincrt0.obj) : error LNK2019: unresolved external symbol _WinMain@16 referenced in function ___tmainCRTStartu
p
x.exe : fatal error LNK1120: 1 unresolved externals
C:\test> _
Technically this is because Microsoft’s linker is non-sta...
Add list to set?
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edited Jan 17 '19 at 2:05
Boris
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answered Aug ...
Assignment inside lambda expression in Python
...was shown :)
– jno
Jan 31 '13 at 16:05
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Initialise a list to a specific length in Python [duplicate]
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edited Jan 10 '19 at 10:05
xoxox
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answered May 7 '...
`elif` in list comprehension conditionals
... do this.
– dTanMan
Nov 7 '19 at 16:05
add a comment
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node and Error: EMFILE, too many open files
For some days I have searched for a working solution to an error
17 Answers
17
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Fast way of counting non-zero bits in positive integer
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b'\x01\x02\x02\x03\x02\x03\x03\x04\x02\x03\x03\x04\x03\x04\x04\x05'
b'\x01\x02\x02\x03\x02\x03\x03\x04\x02\x03\x03\x04\x03\x04\x04\x05'
b'\x02\x03\x03\x04\x03\x04\x04\x05\x03\x04\x04\x05\x04\x05\x05\x06'
b'\x01\x02\x02\x03\x02\x03\x03\x04\x02\x03\x03\x04\x03\...
Linux C/C++进程单实例互斥代码分享 - C/C++ - 清泛网 - 专注C/C++及内核技术
..., O_RDWR | O_TRUNC);
}
}
if (fd < 0) {
printf("Open file failed, error : %s", strerror(errno));
exit(1);
}
// 将该文件锁定,锁定后的文件将不能够再次锁定
struct flock fl;
fl.l_type = F_WRLCK; // 写文件锁定
fl.l_start = 0;
fl.l_whence = SEEK_SET;
fl...