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I can't wait to see how ROC (Request Oriented Collector) [1] will benefit Go GC. Go is mostly used in web services which means you could collect garbage from whole request when it's over. ROC will try to do that. You can read more about it in the link that I've provided.

1. https://docs.google.com/document/d/1gCsFxXamW8RRvOe5hECz98Ft...

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It's addressed in the article. Basically, you can mimick that with a generational GC as long as the youg generation space is large enough to hold all objects from a request.

Note that advanced collectors like G1 auto-adjust the young gen size as the program runs. This means pause times can take a little while to settle, but after the GC warms up you should find it's more or less like the ROC:

https://software.intel.com/en-us/blogs/2014/06/18/part-1-tun...

(note: that article is about a rather old version but the graphs illustrate the concept)

This may not help you if you can't tolerate warmup latency spikes. In that case you need to do some GC tuning to tell the collector enough that it can get it right from the start.

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