Mercurial > hg > truffle
view test/sanity/WBApi.java @ 5986:500023bd0818
7143511: G1: Another instance of high GC Worker Other time (50ms)
Summary: Tiered compilation has increased the number of nmethods in the code cache. This has, in turn, significantly increased the number of marked nmethods processed during the StrongRootsScope destructor. Create a specialized version of CodeBlobToOopClosure for G1 which places only those nmethods that contain pointers into the collection set on to the marked nmethods list.
Reviewed-by: iveresov, tonyp
author | johnc |
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date | Tue, 13 Mar 2012 11:05:32 -0700 |
parents | 2d503de963b3 |
children | 1b0dc9f87e75 |
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/* * @test WBApi * @summary verify that whitebox functions can be linked and executed * @run compile -J-XX:+UnlockDiagnosticVMOptions -J-XX:+WhiteBoxAPI WBApi.java * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI WBApi */ import sun.hotspot.WhiteBox; public class WBApi { public static void main(String... args) { System.out.printf("args at: %x\n",WhiteBox.getWhiteBox().getObjectAddress(args)); } }