September 2015
Intermediate to advanced
272 pages
6h 4m
German
Content preview from Effektiv Python programmieren - 59 Wege für bessere Python-Programme
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Kapitel 5: Nebenläufigkeit und parallele Ausführung
Man spricht von Nebenläufigkeit oder nebenläufiger Ausführung, wenn ein Computer scheinbar mehrere Aufgaben simultan erledigt. Ein Computer mit einem Einkernprozessor wechselt rasend schnell die Programme, die er gerade ausführt. Die rasche Abfolge, in der das geschieht, erzeugt die Illusion mehrerer gleichzeitig ausgeführter Programme.
Bei paralleler Ausführung hingegen werden tatsächlich mehrere Aufgaben gleichzeitig erledigt. Computer mit Mehrkernprozessoren können mehrere Programme simultan ausführen. Jeder Prozessorkern führt die Instruktionen eines anderen Programms aus – jedes Programm macht im selben Augenblick Fortschritte.
Innerhalb eines einzelnen Programms ist die gleichzeitige ...
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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.