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Create an index on a huge MySQL production table without table locking
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This is ****FALSE**** (at least for MyISAM / InnoDB tables, which is what 99.999% of people out there use. Clustered Edition is different.)
Doing UPDATE operations on a table will BLOCK while the index is being created. MySQL is really, really stupid about this (and a few other things).
Test Sc...
Fundamental difference between Hashing and Encryption algorithms
...le with .001% the second step should be .001 + (1 - 0.001) * .001, or 0.001999.
– AlexDev
Jun 11 '15 at 17:19
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show 10 more comments
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What do 'real', 'user' and 'sys' mean in the output of time(1)?
...grams can be compiled and run with:
gcc -ggdb3 -o main.out -pthread -std=c99 -pedantic-errors -Wall -Wextra main.c
time ./main.out
and have been tested in Ubuntu 18.10, GCC 8.2.0, glibc 2.28, Linux kernel 4.18, ThinkPad P51 laptop, Intel Core i7-7820HQ CPU (4 cores / 8 threads), 2x Samsung M471A2...
Sending event when AngularJS finished loading
...ht, this is probably my last and final update. This will probably work for 99.999 of the use cases out there:
/*
* The whenReady directive allows you to execute the content of a when-ready
* attribute after the element is ready (i.e. when it's done loading all sub directives and DOM
* content). ...
Is MATLAB OOP slow or am I doing something wrong?
...nstant: 1.51890 15.19
classdef property: 0.12992 1.30
classdef property with getter: 1.39912 13.99
+pkg.nop() function: 0.87345 8.73
+pkg.nop() from inside +pkg: 0.80501 8.05
Java obj.nop(): 1.86378 18.64
Java nop(ob...
What are the differences between NP, NP-Complete and NP-Hard?
...shore SiddeNagakishore Sidde
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Is it correct to use JavaScript Array.sort() method for shuffling?
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AmerllicA
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answered Jun 7 '09 at 21:08
Jon SkeetJon Skeet
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Getting started with Haskell
...arned on the last few pages.
A good list of problems to try is the haskell 99 problems page. These start off very basic, and get more difficult as you go on. It is very good practice doing a lot of those, as they let you practice your skills in recursion and higher order functions. I would recommend...
Best Practices: Salting & peppering passwords?
...han people realize, and it's quite easy to shoot yourself in the foot. For 99.9% of the users out there, raw bcrypt is more than sufficient for all but the simplest passwords...
– ircmaxell
Jun 4 '13 at 14:56
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Auto-fit TextView for Android
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M-WaJeEhM-WaJeEh
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