September 2024
Intermediate to advanced
450 pages
14h 48m
German
Content preview from Java Performance, 2. Auflage
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Anhang. Zusammenfassung der Tuning-Flags
Dieser Anhang behandelt häufig verwendete Flags und gibt Hinweise darauf, wann sie verwendet werden sollten. Zu den häufig verwendeten Flags gehören auch solche, die in früheren Java-Versionen häufig verwendet wurden und nicht mehr empfohlen werden; in der Dokumentation und in Tipps zu älteren Java-Versionen werden diese Flags möglicherweise empfohlen und deshalb hier erwähnt.
| Flagge | Was sie tut | Wann man es benutzt | Siehe auch |
|---|---|---|---|
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Dieses Flag hat keine Wirkung mehr; es wird stillschweigend ignoriert. |
N/A |
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Dieses Flag hat keine Wirkung mehr; es wird stillschweigend ignoriert. |
N/A |
|
|
Verwendet eine stufenweise Zusammenstellung. |
Immer, es sei denn, du hast nur wenig Speicherplatz zur Verfügung. |
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Reserviert Platz für Code, der vom JIT-Compiler kompiliert wurde. |
Wenn du ein großes Programm ausführst und eine Warnung siehst, dass du keinen Code-Cache mehr hast. |
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Weist den ursprünglichen Platz für den vom JIT-Compiler kompilierten Code zu. |
Wenn du den Speicher für den Code-Cache vorab zuweisen musst (was selten der Fall ist). |
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Legt fest, wie oft eine Methode oder Schleife ausgeführt wird, bevor sie kompiliert ... |
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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.
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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.