langtools/.hgignore
author tschatzl
Thu, 09 Oct 2014 11:40:11 +0200
changeset 27149 9246fc481aa3
parent 26539 0e02b267c41e
child 42403 27f4a3ee0c27
permissions -rw-r--r--
8059758: Footprint regressions with JDK-8038423 Summary: Changes in JDK-8038423 always initialize (zero out) virtual memory used for auxiliary data structures. This causes a footprint regression for G1 in startup benchmarks. This is because they do not touch that memory at all, so the operating system does not actually commit these pages. The fix is to, if the initialization value of the data structures matches the default value of just committed memory (=0), do not do anything. Reviewed-by: jwilhelm, brutisso
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