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Counting the number of True Booleans in a Python List
... I would suggest to use count as I did in count_it.
Python version: 3.6.7
CPU cores: 4
RAM size: 16 GB
OS: Ubuntu 18.04.1 LTS
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MySql server startup error 'The server quit without updating PID file '
...l of the MySQL processes running:
$ ps aux | grep mysql
USER PID %CPU %MEM
_mysql 5970 0.0 0.4 ...
Then kill all the processes listed from the above command using the following:
$ sudo kill -9 [PID]
Replace [PID] with the individual PID from the list above, e.g. 5970.
Do that ...
Ideal way to cancel an executing AsyncTask
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If you have a cpu consuming operation in AsyncTask, so you must call cancel(true). I used it and it works.
– S.M.Mousavi
Nov 16 '16 at 12:52
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Difference between string and text in rails?
... increased storage space when using the blank-padded type, and a few extra CPU cycles to check the length when storing into a length-constrained column. While character(n) has performance advantages in some other database systems, there is no such advantage in PostgreSQL; in fact character(n) is usu...
When does System.gc() do something?
...generations in a multi-generational heap), then it can actually cause MORE cpu cycles to be consumed than necessary.
In some cases, it may make sense to suggest to the VM that it do a full collection NOW as you may know the application will be sitting idle for the next few minutes before heavy lift...
How can I make a .NET Windows Forms application that only runs in the System Tray?
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Thread.Sleep is a bad idea: you'll end up using more CPU and battery than if you just did Application.Run like you're meant to.
– Sneftel
Jun 18 at 10:51
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理解Python的 with 语句 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...d. One could write something like this to get around this:
这里有两个问题。一是可能忘记关闭文件句柄；二是文件读取数据发生异常，没有进行任何处理。下面是处理异常的加强版本：
file = open("/tmp/foo.txt")
try:
data = file.read()
finally:
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How can I clear or empty a StringBuilder? [duplicate]
...'s a lot faster just to set the text length to zero (virtually no work for CPU) and reuse the same buffer.
– Sulthan
Jun 14 '11 at 9:08
14
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How to install Boost on Ubuntu
...$user_configFile
Find the maximum number of physical cores:
n=`cat /proc/cpuinfo | grep "cpu cores" | uniq | awk '{print $NF}'`
Install boost in parallel:
sudo ./b2 --with=all -j $n install
Assumes you have /usr/local/lib setup already. if not, you can add it to your LD LIBRARY PATH:
sudo sh ...
Team city unmet requirement: MSBuildTools12.0_x86_Path exists
...rous restarts and reinstalls.
I noticed that the agent info such as OS and CPU was not appearing on the agent details page. This indicated that the problem was not with the .NET and MSBUILD prerequisites but were instead related to the agent service not being able to read info about the machine.
The...