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Retrieve CPU usage and memory usage of a single process on Linux?
...mp;>/dev/null &
pid="$!"
trap ':' INT
echo 'CPU MEM'
while sleep 1; do ps --no-headers -o '%cpu,%mem' -p "$pid"; done
kill "$pid"
)
topp ./myprog arg1 arg2
Now when you hit Ctrl + C it exits the program and stops monitoring. Sample output:
CPU MEM
20.0 1.3
35.0 1.3
40.0 1.3
...
Command to get time in milliseconds
...liseconds:
#!/bin/sh
read up rest </proc/uptime; t1="${up%.*}${up#*.}"
sleep 3 # your command
read up rest </proc/uptime; t2="${up%.*}${up#*.}"
millisec=$(( 10*(t2-t1) ))
echo $millisec
The output is:
3010
This is a very cheap operation, which works with shell internals and procfs.
...
How to get the request parameters in Symfony 2?
...usertype'); $username = $userType['username'];
– sleep-er
Aug 8 '14 at 15:33
...
Controlling mouse with Python
... y = int(500+math.cos(i)*100)
win32api.SetCursorPos((x,y))
time.sleep(.01)
A click using ctypes:
import ctypes
# see http://msdn.microsoft.com/en-us/library/ms646260(VS.85).aspx for details
ctypes.windll.user32.SetCursorPos(100, 20)
ctypes.windll.user32.mouse_event(2, 0, 0, 0,0) # lef...
Play audio with Python
...e, this was not working. I mean, it was playing but no sound. I added time.sleep(5) at the end and that worked. Python 3.6 on Windows 8.1
– Nagabhushan S N
Nov 22 '18 at 6:15
...
Reusing output from last command in Bash
...good reasons to use $() instead of backticks. But probably nothing to lose sleep over. github.com/koalaman/shellcheck/wiki/SC2006
– Michael Crenshaw
Jan 2 at 15:58
1
...
Shell script to send email [duplicate]
...would of course be to pipe the output into mail:
vs@lambda:~$ cat test.sh
sleep 3 && echo test | mail -s test your@address
vs@lambda:~$ nohup sh test.sh
nohup: ignoring input and appending output to `nohup.out'
I guess sh test.sh & will do just as fine normally.
...
How do we use runOnUiThread in Android?
... }
});
Thread.sleep(300);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}.start();
}
...
How to test a confirm dialog with Cucumber?
..._to.alert.accept
elsif page.driver.class == Capybara::Webkit::Driver
sleep 1 # prevent test from failing by waiting for popup
page.driver.browser.confirm_messages.should eq(title)
page.driver.browser.accept_js_confirms
else
raise "Unsupported driver"
end
end
...
也来说说ReactOS的调试 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...ONSTOP);
bConnected = FALSE;
return;
}
接着看看这个函数Rs232ConfigurePortWin32(同目录下的rs232.c中):
代码:
BOOL Rs232ConfigurePortWin32(TCHAR* DeviceControlString)
{
DCB dcb;
DWORD ErrorCode;
memset(&dcb, 0, sizeof(DCB));
dcb.DCBlength = siz...