...st direct relationship to performance. that samples need not be taken when blocked The reasons for this myth are twofold: 1) that PC sampling is meaningless when the program is waiting, and 2) the preoccupation with accuracy of timing. However, for (1) the program may very well be waiting for someth...

...t IDisposable. Now you can basically use this as-is, with a try-finally block, but I'm not fond of that syntax, because if you start passing around pooled resources between classes and methods then it's going to get very confusing. It's possible that the main class that uses a resource doesn't e...

...e to). The subscribed controller receives the objects by subscribeNext:'s block and handles them. I tried many ways in different apps but this one worked the best out of all so I've been using this in a few apps recently, it fits both small and big projects and it's easy to extend and maintain if...

...g:hover { color: #3773f5 } .feedback-pop .feedback-img { display: inline-block; width: 24px; height: 24px; margin-bottom: 4px; background: url(/static/images/feedback.svg) 50% / 100% auto no-repeat; } /*手机版：反馈浮动按钮收小*/ @media screen and (max-width: 700px) { .feedback-po...

...ency injection (DI). If you come from a server-side language (from Java to PHP) you're probably familiar with this concept already, but if you're a client-side guy coming from jQuery, this concept can seem anything from silly to superfluous to hipster. But it's not. :-) From a broad perspective, DI...

... I referenced under Strings are for. This data type was the basic building block for reddit's recent collaborative art project: r/Place. HyperLogLog allows you to use a constant extremely small amount of space to count almost unlimited unique values with shocking accuracy. Using only ~16KB you could...

...g:hover { color: #3773f5 } .feedback-pop .feedback-img { display: inline-block; width: 24px; height: 24px; margin-bottom: 4px; background: url(/static/images/feedback.svg) 50% / 100% auto no-repeat; } /*手机版：反馈浮动按钮收小*/ @media screen and (max-width: 700px) { .feedback-po...

...7 ctxt 50795173133 btime 1218807985 processes 116889 procs_running 1 procs_blocked 0 First, you need to determine how many CPUs (or processors, or processing cores) are available in the system. To do this, count the number of 'cpuN' entries, where N starts at 0 and increments. Don't count the 'c...

...ate padding to align columns of text, for formatting money, or for filling block data up to the boundary. A text generation function also allows variable length input for testing any other function that operates on text. This function is one of the important components of the JavaScript text process...

...ault, it will contain entries pointing to the instruction after the switch block. I did some basic tests, and I found that if the gap between the last index and the previous one (9) is greater than 35, it uses a lookupswitch instead of a tableswitch. The behavior of the switch statement is defined...