October 2012
Intermediate to advanced
240 pages
7h 52m
Polish
Content preview from MySQL. Mechanizmy wewnętrzne bazy danychBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Rozdział 6. Wątkowa obsługa żądań
Podczas pisania kodu serwera programista staje przed dylematem: czy obsługiwać żądania za pomocą wątków, czy procesów? Oba podejścia mają swoje zalety i wady. Od samego początku MySQL korzystał z wątków. W tym rozdziale uzasadnimy wątkową obsługę żądań w serwerze MySQL, a także omówimy jej wady i zalety oraz implementację.
Wątki kontra procesy
Być może najważniejszą różnicą między procesem a wątkiem jest to, że wątek potomny współdzieli stertę (globalne dane programu) z wątkiem macierzystym, a proces potomny — nie. Ma to pewne konsekwencje, które trzeba uwzględnić podczas wybierania jednego albo drugiego modelu.
Zalety wątków
Wątki są implementowane w bibliotekach programistycznych i systemach operacyjnych z następujących ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.