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Approximate cost to access various caches and main memory?
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Originally by Peter Norvig:
- http://norvig.com/21-days.html#answers- http://surana.wordpress.com/2009/01/01/numbers-everyone-should-know/,- http://sites.google.com/site/io/building-scalable-web-applications-with-google-app-engine
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What does ** (double star/asterisk) and * (star/asterisk) do for parameters?
...d arguments were passed to the function." - docs.python.org/3/whatsnew/3.6.html In fact, all dicts in CPython 3.6 will remember insertion order as an implementation detail, this becomes standard in Python 3.7.
– Aaron Hall♦
Jan 12 '17 at 20:47
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Android Fragments. Retaining an AsyncTask during screen rotation or configuration change
...ion Class - http://developer.android.com/reference/android/app/Application.html
Everytime you start an AsyncTask, set it on the Application and when it finishes it set it to null.
When a fragment/activity starts you can check if any AsyncTask is running (by checking if it's null or not on the Appl...
What is the Sign Off feature in Git for?
...ource: http://gerrit.googlecode.com/svn/documentation/2.0/user-signedoffby.html
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What does the Java assert keyword do, and when should it be used?
...lic method parameters (docs.oracle.com/javase/1.4.2/docs/guide/lang/assert.html). That should throw an Exception instead of killing the program.
– SJuan76
Aug 25 '13 at 21:58
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Git - Difference Between 'assume-unchanged' and 'skip-worktree'
...e and the typical use cases here: http://fallengamer.livejournal.com/93321.html .
From that article:
--assume-unchanged assumes that a developer shouldn’t change a file. This flag is meant for improving performance for not-changing folders like SDKs.
--skip-worktree is useful when you instruct...
Why is an int in OCaml only 31 bits?
...es" section of https://ocaml.org/learn/tutorials/performance_and_profiling.html for a good description.
The short answer is that it is for performance. When passing an argument to a function it is either passed as an integer or a pointer. At a machine level language level there is no way to tell ...
Useless use of cat?
...ers. My numbers are here: oletange.blogspot.com/2013/10/useless-use-of-cat.html (and they show it is only slower when you have high troughput) Where are yours?
– Ole Tange
Jan 5 '19 at 9:28
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Get path of executable
...se using the predefined OS macros detailed at predef.sourceforge.net/preos.html to select the method is straightforward.
– Clifford
Oct 7 '09 at 15:02
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Tactics for using PHP in a high-load site
...you have simple dynamic changes after it's generated, consider writing out html or php to the disk. You could have an index.php page that looks on disk for the article, if it's there, it streams it to the client. If it isn't, it generates the article, writes it to the disk and sends it to the client...