May 2025
Intermediate to advanced
524 pages
16h 25m
German
Content preview from High Performance Python, 3. Auflage
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Kapitel 9. Asynchrone E/A
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Bisher haben wir uns darauf konzentriert, den Code zu beschleunigen, indem wir die Anzahl der Rechenzyklen erhöht haben, die ein Programm in einer bestimmten Zeit abarbeiten kann. In Zeiten von Big Data kann jedoch nicht mehr der Code selbst, sondern die Übermittlung der relevanten Daten an deinen Code der Engpass sein. Wenn das der Fall ist, nennt man dein Programm I/O bound; mit anderen Worten, die Geschwindigkeit ist durch die Effizienz der Ein-/Ausgabe begrenzt.
E/A kann für den Programmfluss ziemlich lästig sein. Jedes Mal, wenn dein Code aus einer Datei liest oder in einen Netzwerksocket schreibt, muss er eine Pause einlegen, um den Kernel zu kontaktieren, den Lesevorgang anzufordern und dann zu warten, bis er abgeschlossen ist. Das liegt daran, dass nicht dein Programm, sondern der Kernel den eigentlichen Lesevorgang durchführt, da der Kernel für die Interaktion ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
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.