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How to get current CPU and RAM usage in Python?
...x, Windows, OSX, Sun Solaris, FreeBSD, OpenBSD and NetBSD, both 32-bit and 64-bit architectures, with Python versions from 2.6 to 3.5 (users of Python 2.4 and 2.5 may use 2.1.3 version).
Some examples:
#!/usr/bin/env python
import psutil
# gives a single float value
psutil.cpu_percent()
# gives an...
Sending files using POST with HttpURLConnection
...
64
To upload file on server with some parameter using MultipartUtility in simple way.
MultipartUt...
Meaning of acronym SSO in the context of std::string
... size_type m_capacity;
std::array<char, 16> m_sso;
};
For a 64-bit system, that generally means that std::string has 24 bytes of 'overhead' per string, plus another 16 for the SSO buffer (16 chosen here instead of 20 due to padding requirements). It wouldn't really make sense to store...
Making 'git log' ignore changes for certain paths
...hspec magic :(exclude) and its short form :! in commit ef79b1f and commit 1649612, by
Nguyễn Thái Ngọc Duy (pclouds), documentation can be found here.
You now can log everything except a sub-folder content:
git log -- . ":(exclude)sub"
git log -- . ":!sub"
Or you can exclude specific elements...
How many threads is too many?
... Note that these virtual memory limits only apply to 32-bit systems. On 64 bits you won't run out of virtual memory.
– JanKanis
Aug 1 at 7:43
add a comment
...
What algorithm gives suggestions in a spell checker?
...An ancient versions is decribed in Programming Pearls by Jon Bentley using 64kb for an english dictionary.
A BK-Tree is an alternative approach. A nice article is here.
Levenshstein distance is not exactly the right edit distance for a spell checker. It knows only insertion, deletion and substitut...
What is the function of the push / pop instructions used on registers in x86 assembly?
... add $8,%rsp # add 8 to the rsp
Note this is x86-64 At&t syntax.
Used as a pair, this lets you save a register on the stack and restore it later. There are other uses, too.
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Exploitable PHP functions
... to hide remote code with workarounds like:
include("data:text/plain;base64,$_GET[code]");
Also, if your webserver has already been compromised you will not always see unencoded evil. Often the exploit shell is gzip-encoded. Think of include("zlib:script2.png.gz"); No eval here, still same effec...
Representational state transfer (REST) and Simple Object Access Protocol (SOAP)
...
Binary data that is sent must be encoded first into a format such as base64 encoded.
Has several protocols and technologies relating to it: WSDL, XSDs, SOAP, WS-Addressing
Representational state transfer (REST):
REST need not be over HTTP but most of my points below will have an HTTP bias.
RES...
Arrays, heap and stack and value types
... edited Feb 20 at 3:58
41686d6564
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answered Jul 11 '09 at 14:35
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