(0.40) GC CRIU: Reinit HeapRegionDescriptorExtensions (Region Obj Lists) #17645
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HeapRegionDescriptorExtensions contain multiple array of obj lists which are inited at startup based on the startup thread count. These must be reinitialized during restore (CRIU) according to the new GC thread count. Specifically, when the thread count is increased, it is necessary to divide the region object lists. This is required to improve parallelism with GC threads and ultimately improve GC performance for the restore environment. For background, see eclipse/omr#6888 (Compensate for Thread Count Change). Signed-off-by: Salman Rana <salman.rana@ibm.com>
RSalman
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@pshipton could you please have a look (cc @dmitripivkine @amicic ) |
pshipton
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Jun 22, 2023
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Double Deliver: #17614