Shenandoah in OpenJDK 17: Sub-millisecond GC pauses

Re:Shenandoah in OpenJDK 17: Sub-millisecond GC pauses by jhgb on Sunday September 19, 2021 @08:12AM (#28583709)

> Thus, users of modern non-GC languages do not experience the pauses seen in GC languages

/doubt

Once you're facing, for example, the deallocation of an entire tree that you own and that's going out of scope, your pause is unbounded. Compared to that, a GC'd language could delay the deallocation, or even in case of stuff like C4 have a dedicated thread deal with it.

Sure, you can always write code in a way that avoids this, but non-consing is also an option for many of the GC'd languages (at least the more advanced ones, like Common Lisp).

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Re:Shenandoah in OpenJDK 17: Sub-millisecond GC pauses by ncmncm on Sunday September 19, 2021 @04:05PM (#28587452)

GC languages, boxing everything, oblige constructing elaborate linked structures. Boxing is exceptional in non-GC languages, and trivially avoided where latency would matter.

So, doubt all you like, unavoidable random millisecond pauses are not a problem in non-GC languages, no matter how much you wish otherwise.

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