franz1981 commented on issue #2645: ARTEMIS-2321 Paging scalability and GC 
improvement
URL: https://github.com/apache/activemq-artemis/pull/2645#issuecomment-486980042
 
 
   The most relevant one from a functional point of view is the non-blocking 
Page::read on page cache.
   I've maintained a separate commit for each improvement to make it easier to 
review them separately.
   Although not really a bug I've recently looked into many stacktraces showing 
many threads blocked on soft cache due to slow `Page::read`, causing the broker 
to be unresponsive and suicide itself right after:
   this change (together with 
https://github.com/apache/activemq-artemis/pull/2633) should make the broker 
less prone to became unresponsive under a storm of page cache misses.

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