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ab load testing
...d I consider an average response time valid if it is 2 seconds". Then just modify your -c level until you are hitting 2 seconds of average response time (but make sure the max response time and stddev is still valid) and see how big you can make -c.
I hope I explained this clear :) Good luck
...
Expand a random range from 1–5 to 1–7
...re are four big holes: (2..5), (7..10), (12..15), (17..21). Finally you do mod 7 and add 1, giving (2, 7, 5, 3, 1). So neither 4 nor 6 ever occur. But (see above shortcut) we knew there could only be 5 numbers in the resulting range all along, so there had to be two gaps.
– Dan...
What is the difference between a 'closure' and a 'lambda'?
... }
//filter for even numbers
filter([0,1,2,3,4,5,6], lambda(x) {return (x mod 2 == 0)});
A closure may be a named or anonymous function, but is known as such when it "closes over" variables in the scope where the function is defined, i.e., the closure will still refer to the environment with any...
Why is the order in dictionaries and sets arbitrary?
...7, hash('foo') is -4177197833195190597, hash('bar') is 327024216814240868. Modulo 8, that means these two keys are slotted in slots 3 and 4 then:
>>> hash('foo')
-4177197833195190597
>>> hash('foo') % 8
3
>>> hash('bar')
327024216814240868
>>> hash('bar') % 8
4
...
Is Haxe worth learning? [closed]
...magine any way to have more portabillity.
Migrating a website from PHP to mod_tora, which performs 40-80 times faster then PHP, oftens just requires 5 minutes of work???
What are some real world and perhaps
under appreciated advantages?
The biggest advantage is portability of code and the ...
Tactics for using PHP in a high-load site
...completely different as well.
Databases
Don't use MySQLi -- PDO is the 'modern' OO database access layer. The most important feature to use is placeholders in your queries. It's smart enough to use server side prepares and other optimizations for you as well.
You probably don't want to break your...
PHP parse/syntax errors; and how to solve them
...E_ALL
display_errors = 1
In your php.ini generally, or via .htaccess for mod_php,
or even .user.ini with FastCGI setups.
Enabling it within the broken script is too late because PHP can't even interpret/run the first line. A quick workaround is crafting a wrapper script, say test.php:
<?php
...
Protect .NET code from reverse engineering?
...t case that means either failing to install or installing in trial-version mode the second time. For the latter, it might just mean checking a plain-text date in a configuration file. Either way, make sure you handle it in an elegant, helpful, and respectful manner.
So that explains what it means d...
Get MIME type from filename extension
...".mno", "text/xml"},
{".mny", "application/x-msmoney"},
{".mod", "video/mpeg"},
{".mov", "video/quicktime"},
{".movie", "video/x-sgi-movie"},
{".mp2", "video/mpeg"},
{".mp2v", "video/mpeg"},
{".mp3", "audio/mpeg"},
{".mp4", "video/mp4"}...
How do we control web page caching, across all browsers?
...ant if the abovementioned Cache-Control parameters are specified. The Last-Modified header as included in most other answers here is only interesting if you actually want to cache the request, so you don't need to specify it at all.
How to set it?
Using PHP:
header("Cache-Control: no-cache, no-st...