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RuntimeError on windows trying python multiprocessing
...cess
import time
start = time.perf_counter()
def do_something(time_for_sleep):
print(f'Sleeping {time_for_sleep} second...')
time.sleep(time_for_sleep)
print('Done Sleeping...')
p1 = Process(target=do_something, args=[1])
p2 = Process(target=do_something, args=[2])
if
__name__...
What is “thread local storage” in Python, and why do I need it?
...
Consider the following code:
#/usr/bin/env python
from time import sleep
from random import random
from threading import Thread, local
data = local()
def bar():
print("I'm called from", data.v)
def foo():
bar()
class T(Thread):
def run(self):
sleep(random())
d...
When is the thread pool used?
...
My question is this: if I stand up an HTTP server in Node.js and call sleep on one of my routed path events (such as "/test/sleep"), the whole system comes to a halt. Even the single listener thread. But my understanding was that this code is happening on the worker pool.
There is no sleep me...
How do I kill all the processes in Mysql “show processlist”?
...peration saves time. Do it in MySql itself:
Run these commands
mysql> select concat('KILL ',id,';') from information_schema.processlist
where user='root' and time > 200 into outfile '/tmp/a.txt';
mysql> source /tmp/a.txt;
Reference
---------edit------------
if you do not want to sto...
Why does “while(true)” without “Thread.sleep” cause 100% CPU usage on Linux but not on Windows?
...ackoverflow.com%2fquestions%2f14579124%2fwhy-does-whiletrue-without-thread-sleep-cause-100-cpu-usage-on-linux-but%23new-answer', 'question_page');
}
);
Post as a guest
...
怎么往SetTimer的回调函数传递参数 - C/C++ - 清泛网 - 专注C/C++及内核技术
...LBACK TimerFunc(HWND hwnd,UINT uMsg,UINT_PTR idEvent,DWORD dwTime)
{
Sleep(5000);
}
DWORD CALLBACK AutoBakup( PVOID lpParam )
{
MSG msg;
UINT id=SetTimer(NULL,1,1000,TimerFunc);
BOOL bRet;
while( ((bRet = GetMessage(&msg,NULL,0,0))!= 0) )
{
if(bRet==-1...
ExecutorService that interrupts tasks after a timeout
...
while (i > counter.get()) {
Thread.sleep(10);
}
}
}
} finally {
service.shutdown();
}
}
The program exhausts the available memory, although it waits for the spawned Runnables to complete.
I though about th...
How to calculate the CPU usage of a process by PID in Linux from C?
... filename of the executable
state state (R is running, S is sleeping, D is sleeping in an
uninterruptible wait, Z is zombie, T is traced or stopped)
ppid process id of the parent process
pgrp pgrp of the process
sid session id
tty_nr...
Python function attributes - uses and abuses [closed]
...eturn _sw
# test code
sw=stopwatch()
sw2=stopwatch()
import os
os.system("sleep 1")
print sw() # defaults to "SW_DELTA"
sw( SW_MARK )
os.system("sleep 2")
print sw()
print sw2()
1.00934004784
2.00644397736
3.01593494415
...
Colors with unix command “watch”?
...t know the flags or there isn't you can make a poor's man watch by:
while sleep <time>; do clear; <command>; done
It will have a bit of flicker (watch works "double buffered") but for some stuff it is useful enough.
You may be tempted to make a double buffered poor man's watch using ...