mirror of
https://github.com/openjdk/jdk.git
synced 2026-08-03 14:47:03 +00:00
58 lines
2.1 KiB
Java
58 lines
2.1 KiB
Java
/*
|
|
* Copyright (c) 2026, Oracle and/or its affiliates. All rights reserved.
|
|
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
|
|
*
|
|
* This code is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License version 2 only, as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* This code is distributed in the hope that it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
* version 2 for more details (a copy is included in the LICENSE file that
|
|
* accompanied this code).
|
|
*
|
|
* You should have received a copy of the GNU General Public License version
|
|
* 2 along with this work; if not, write to the Free Software Foundation,
|
|
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*
|
|
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
|
|
* or visit www.oracle.com if you need additional information or have any
|
|
* questions.
|
|
*/
|
|
|
|
/**
|
|
* @test
|
|
* @bug 8389130
|
|
* @summary With Valhalla, frame::sender became a bit too big and is not as spontaneously inlined as before.
|
|
* This causes some measurable performance regressions in cases where walking the stack is frequent.
|
|
* @run main/othervm -Xbatch
|
|
* -XX:-TieredCompilation
|
|
* -XX:CompileCommand=dontinline,${test.main.class}::fillInStackTrace
|
|
* ${test.main.class}
|
|
* @run main ${test.main.class}
|
|
*/
|
|
|
|
package compiler.exceptions;
|
|
|
|
public class TestStackWalkPerf extends Throwable {
|
|
private static final TestStackWalkPerf PROBE = new TestStackWalkPerf();
|
|
|
|
private static void fillInStackTrace(int depth, int fills) {
|
|
if (depth == 0) {
|
|
for (int i = 0; i < fills; i++) {
|
|
PROBE.fillInStackTrace();
|
|
}
|
|
return;
|
|
}
|
|
fillInStackTrace(depth - 1, fills);
|
|
}
|
|
|
|
public static void main(String[] args) {
|
|
for (int i = 0; i < 10_000; i++) {
|
|
fillInStackTrace(512, 1);
|
|
}
|
|
fillInStackTrace(512, 1_000_000);
|
|
}
|
|
}
|