@violet Regarding low-collection overhead, there are also strategies like #Ada's storage pools and #Java's #ZGC's concurrent garbage collection (https://wiki.openjdk.org/display/zgc/Main), where the variance is very predictable (strict guarantee: won't be more than 1ms iirc; I think it qualifies as a firm real-time garbage collector) .

Storage pools have been implemented in #CommonLisp before, and there's no reason implementations cannot have realtime garbage collectors (iirc NASA has done it before).

@programming_discussions

It also sounds like they didn't even try #ZGC (https://wiki.openjdk.org/display/zgc/Main) since they're mentioning GC pauses as a problem and apparently their best answer to that was restarting nodes rather than configuring them to use a better GC.

Heap settings are really just tuning the same GC, not changing it.

@natty

#Java #JVM #GarbageCollection

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