# HG changeset patch # User sjohanss # Date 1390218978 -3600 # Node ID 7ab52431bc9f22dd7c579443239e8c8a0732c6f3 # Parent 284953caf7aa55fb84c0fc3531bc5e59290efc73 8020277: Young GC could be extremely slow due to assertion in ObjectStartArray::object_starts_in_range 8009462: Young GC's (ParNewGC and SerialGC) have unexpected variances. Summary: Removed the assertion slowing down GC. Reviewed-by: stefank, mgerdin diff -r 284953caf7aa -r 7ab52431bc9f src/share/vm/gc_implementation/parallelScavenge/objectStartArray.cpp --- a/src/share/vm/gc_implementation/parallelScavenge/objectStartArray.cpp Mon Jan 20 17:15:55 2014 +0100 +++ b/src/share/vm/gc_implementation/parallelScavenge/objectStartArray.cpp Mon Jan 20 12:56:18 2014 +0100 @@ -139,11 +139,6 @@ return true; } } - // No object starts in this slice; verify this using - // more traditional methods: Note that no object can - // start before the start_addr. - assert(end_addr == start_addr || - object_start(end_addr - 1) <= start_addr, - "Oops an object does start in this slice?"); + return false; }