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Why is there huge performance hit in 2048x2048 versus 2047x2047 array multiplication?
...n your cache. L is always power of 2.
The six comes from fact that 2^6 == 64 bytes is standard size of cache line.
Now what does this mean? Well it means that if I have address X and address Y and
(X >> 6) - (Y >> 6) is divisible by L (i.e. some large power of 2), they will be stored ...
Attach a file from MemoryStream to a MailMessage in C#
...et.Mime.MimeTypeNames like System.Net.Mime.MediaTypeNames.Application.Pdf
Based on Mime Type you need to specify correct extension in FileName for instance "myFile.pdf"
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Ruby Gem install Json fails on Mavericks and Xcode 5.1 - unknown argument: '-multiply_definedsuppres
...or=unused-command-line-argument-hard-error-in-future gem install GemName
Base on Muncken's answer, I've tried that it also works when using bundle install
ARCHFLAGS=-Wno-error=unused-command-line-argument-hard-error-in-future bundle install
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Should I add the Visual Studio .suo and .user files to source control?
... when you view status, or commit
files, those files won't clutter the code base and obscure new files you need to add.
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Jackson Vs. Gson [closed]
... (with additional type information)
Integrated support for binary content (base64 to/from JSON Strings)
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Why is the Android emulator so slow? How can we speed up the Android emulator? [closed]
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@ Msmit1993: You can use Intel x86 based emulator with HAX tool. Believe me you will will be surprised that emulator faster than your actual device.
– Vikas Patidar
Nov 22 '13 at 12:48
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How can I get the MAC and the IP address of a connected client in PHP?
...ethernet segment as the server.
So, if you are building some kind of LAN based system and your clients are on the same ethernet segment, then you could get the MAC address by parsing the output of arp -n (linux) or arp -a (windows).
Edit: you ask in comments how to get the output of an external ...
Vim indent xml file
...iles and vim, in Sublime they reindents very quickly (5000-10000 lines and base64 data), but in Vim they reindents several minutes. This solution fix problem with large XML files. Again I happy with Vim.
– Sonique
May 17 '15 at 17:33
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How to get an absolute file path in Python
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Today you can also use the unipath package which was based on path.py: http://sluggo.scrapping.cc/python/unipath/
>>> from unipath import Path
>>> absolute_path = Path('mydir/myfile.txt').absolute()
Path('C:\\example\\cwd\\mydir\\myfile.txt')
>>> str...
iPhone hide Navigation Bar only on first page
...:willShowViewController:animated method to show or hide the navigation bar based on whether it is showing the root view controller
Override the initialization methods to set the UINavigationController subclass as its own delegate
Complete code for this solution can be found in this Gist. Here's th...