alvinalexander.com | career | drupal | java | mac | mysql | perl | scala | uml | unix  

Java example source code file (TestIntUnsafeVolatile.java)

This example Java source code file (TestIntUnsafeVolatile.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

arrlen, arrlen-1, arrlen\-align_off, arrlen\-k, arrlen\-offset, arrlen\-unalign_off, base, exception, internalerror, iters, offset, reflection, scale, testintunsafevolatile, unsafe

The TestIntUnsafeVolatile.java Java example source code

/*
 * Copyright (c) 2013, 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 8004867
 * @summary VM crashing with assert "share/vm/opto/node.hpp:357 - assert(i < _max) failed: oob"
 *
 * @run main/othervm/timeout=300 -Xbatch -XX:+IgnoreUnrecognizedVMOptions -XX:-TieredCompilation -XX:-OptimizeFill TestIntUnsafeVolatile
 * @run main/othervm/timeout=300 -Xbatch -XX:+IgnoreUnrecognizedVMOptions -XX:-TieredCompilation -XX:+OptimizeFill TestIntUnsafeVolatile
 */

import sun.misc.Unsafe;
import java.lang.reflect.*;

public class TestIntUnsafeVolatile {
  private static final int ARRLEN = 97;
  private static final int ITERS  = 11000;
  private static final int OFFSET = 3;
  private static final int SCALE = 2;
  private static final int ALIGN_OFF = 8;
  private static final int UNALIGN_OFF = 5;

  private static final Unsafe unsafe;
  private static final int BASE;
  static {
    try {
      Class c = TestIntUnsafeVolatile.class.getClassLoader().loadClass("sun.misc.Unsafe");
      Field f = c.getDeclaredField("theUnsafe");
      f.setAccessible(true);
      unsafe = (Unsafe)f.get(c);
      BASE = unsafe.arrayBaseOffset(int[].class);
    } catch (Exception e) {
      InternalError err = new InternalError();
      err.initCause(e);
      throw err;
    }
  }

  public static void main(String args[]) {
    System.out.println("Testing Integer array unsafe volatile operations");
    int errn = test(false);
    if (errn > 0) {
      System.err.println("FAILED: " + errn + " errors");
      System.exit(97);
    }
    System.out.println("PASSED");
  }

  static int test(boolean test_only) {
    int[] a1 = new int[ARRLEN];
    int[] a2 = new int[ARRLEN];
    // Initialize
    for (int i=0; i<ARRLEN; i++) {
      a1[i] = -1;
      a2[i] = -1;
    }
    System.out.println("Warmup");
    for (int i=0; i<ITERS; i++) {
      test_ci(a1);
      test_vi(a2, 123, -1);
      test_cp(a1, a2);
      test_2ci(a1, a2);
      test_2vi(a1, a2, 123, 103);
      test_ci_neg(a1, 123);
      test_vi_neg(a2, 123, 103);
      test_cp_neg(a1, a2);
      test_2ci_neg(a1, a2);
      test_2vi_neg(a1, a2, 123, 103);
      test_ci_oppos(a1, 123);
      test_vi_oppos(a2, 123, 103);
      test_cp_oppos(a1, a2);
      test_2ci_oppos(a1, a2);
      test_2vi_oppos(a1, a2, 123, 103);
      test_ci_off(a1, 123);
      test_vi_off(a2, 123, 103);
      test_cp_off(a1, a2);
      test_2ci_off(a1, a2);
      test_2vi_off(a1, a2, 123, 103);
      test_ci_inv(a1, OFFSET, 123);
      test_vi_inv(a2, 123, OFFSET, 103);
      test_cp_inv(a1, a2, OFFSET);
      test_2ci_inv(a1, a2, OFFSET);
      test_2vi_inv(a1, a2, 123, 103, OFFSET);
      test_ci_scl(a1, 123);
      test_vi_scl(a2, 123, 103);
      test_cp_scl(a1, a2);
      test_2ci_scl(a1, a2);
      test_2vi_scl(a1, a2, 123, 103);
      test_cp_alndst(a1, a2);
      test_cp_alnsrc(a1, a2);
      test_2ci_aln(a1, a2);
      test_2vi_aln(a1, a2, 123, 103);
      test_cp_unalndst(a1, a2);
      test_cp_unalnsrc(a1, a2);
      test_2ci_unaln(a1, a2);
      test_2vi_unaln(a1, a2, 123, 103);
    }
    // Initialize
    for (int i=0; i<ARRLEN; i++) {
      a1[i] = -1;
      a2[i] = -1;
    }
    // Test and verify results
    System.out.println("Verification");
    int errn = 0;
    {
      test_ci(a1);
      for (int i=0; i<ARRLEN; i++) {
        errn += verify("test_ci: a1", i, a1[i], -123);
      }
      test_vi(a2, 123, -1);
      for (int i=0; i<ARRLEN; i++) {
        errn += verify("test_vi: a2", i, a2[i], 123);
      }
      test_cp(a1, a2);
      for (int i=0; i<ARRLEN; i++) {
        errn += verify("test_cp: a1", i, a1[i], 123);
      }
      test_2ci(a1, a2);
      for (int i=0; i<ARRLEN; i++) {
        errn += verify("test_2ci: a1", i, a1[i], -123);
        errn += verify("test_2ci: a2", i, a2[i], -103);
      }
      test_2vi(a1, a2, 123, 103);
      for (int i=0; i<ARRLEN; i++) {
        errn += verify("test_2vi: a1", i, a1[i], 123);
        errn += verify("test_2vi: a2", i, a2[i], 103);
      }
      // Reset for negative stride
      for (int i=0; i<ARRLEN; i++) {
        a1[i] = -1;
        a2[i] = -1;
      }
      test_ci_neg(a1, -1);
      for (int i=0; i<ARRLEN; i++) {
        errn += verify("test_ci_neg: a1", i, a1[i], -123);
      }
      test_vi_neg(a2, 123, -1);
      for (int i=0; i<ARRLEN; i++) {
        errn += verify("test_vi_neg: a2", i, a2[i], 123);
      }
      test_cp_neg(a1, a2);
      for (int i=0; i<ARRLEN; i++) {
        errn += verify("test_cp_neg: a1", i, a1[i], 123);
      }
      test_2ci_neg(a1, a2);
      for (int i=0; i<ARRLEN; i++) {
        errn += verify("test_2ci_neg: a1", i, a1[i], -123);
        errn += verify("test_2ci_neg: a2", i, a2[i], -103);
      }
      test_2vi_neg(a1, a2, 123, 103);
      for (int i=0; i<ARRLEN; i++) {
        errn += verify("test_2vi_neg: a1", i, a1[i], 123);
        errn += verify("test_2vi_neg: a2", i, a2[i], 103);
      }
      // Reset for opposite stride
      for (int i=0; i<ARRLEN; i++) {
        a1[i] = -1;
        a2[i] = -1;
      }
      test_ci_oppos(a1, -1);
      for (int i=0; i<ARRLEN; i++) {
        errn += verify("test_ci_oppos: a1", i, a1[i], -123);
      }
      test_vi_oppos(a2, 123, -1);
      for (int i=0; i<ARRLEN; i++) {
        errn += verify("test_vi_oppos: a2", i, a2[i], 123);
      }
      test_cp_oppos(a1, a2);
      for (int i=0; i<ARRLEN; i++) {
        errn += verify("test_cp_oppos: a1", i, a1[i], 123);
      }
      test_2ci_oppos(a1, a2);
      for (int i=0; i<ARRLEN; i++) {
        errn += verify("test_2ci_oppos: a1", i, a1[i], -123);
        errn += verify("test_2ci_oppos: a2", i, a2[i], -103);
      }
      test_2vi_oppos(a1, a2, 123, 103);
      for (int i=0; i<ARRLEN; i++) {
        errn += verify("test_2vi_oppos: a1", i, a1[i], 123);
        errn += verify("test_2vi_oppos: a2", i, a2[i], 103);
      }
      // Reset for indexing with offset
      for (int i=0; i<ARRLEN; i++) {
        a1[i] = -1;
        a2[i] = -1;
      }
      test_ci_off(a1, -1);
      for (int i=OFFSET; i<ARRLEN; i++) {
        errn += verify("test_ci_off: a1", i, a1[i], -123);
      }
      test_vi_off(a2, 123, -1);
      for (int i=OFFSET; i<ARRLEN; i++) {
        errn += verify("test_vi_off: a2", i, a2[i], 123);
      }
      test_cp_off(a1, a2);
      for (int i=OFFSET; i<ARRLEN; i++) {
        errn += verify("test_cp_off: a1", i, a1[i], 123);
      }
      test_2ci_off(a1, a2);
      for (int i=OFFSET; i<ARRLEN; i++) {
        errn += verify("test_2ci_off: a1", i, a1[i], -123);
        errn += verify("test_2ci_off: a2", i, a2[i], -103);
      }
      test_2vi_off(a1, a2, 123, 103);
      for (int i=OFFSET; i<ARRLEN; i++) {
        errn += verify("test_2vi_off: a1", i, a1[i], 123);
        errn += verify("test_2vi_off: a2", i, a2[i], 103);
      }
      for (int i=0; i<OFFSET; i++) {
        errn += verify("test_2vi_off: a1", i, a1[i], -1);
        errn += verify("test_2vi_off: a2", i, a2[i], -1);
      }
      // Reset for indexing with invariant offset
      for (int i=0; i<ARRLEN; i++) {
        a1[i] = -1;
        a2[i] = -1;
      }
      test_ci_inv(a1, OFFSET, -1);
      for (int i=OFFSET; i<ARRLEN; i++) {
        errn += verify("test_ci_inv: a1", i, a1[i], -123);
      }
      test_vi_inv(a2, 123, OFFSET, -1);
      for (int i=OFFSET; i<ARRLEN; i++) {
        errn += verify("test_vi_inv: a2", i, a2[i], 123);
      }
      test_cp_inv(a1, a2, OFFSET);
      for (int i=OFFSET; i<ARRLEN; i++) {
        errn += verify("test_cp_inv: a1", i, a1[i], 123);
      }
      test_2ci_inv(a1, a2, OFFSET);
      for (int i=OFFSET; i<ARRLEN; i++) {
        errn += verify("test_2ci_inv: a1", i, a1[i], -123);
        errn += verify("test_2ci_inv: a2", i, a2[i], -103);
      }
      test_2vi_inv(a1, a2, 123, 103, OFFSET);
      for (int i=OFFSET; i<ARRLEN; i++) {
        errn += verify("test_2vi_inv: a1", i, a1[i], 123);
        errn += verify("test_2vi_inv: a2", i, a2[i], 103);
      }
      for (int i=0; i<OFFSET; i++) {
        errn += verify("test_2vi_inv: a1", i, a1[i], -1);
        errn += verify("test_2vi_inv: a2", i, a2[i], -1);
      }
      // Reset for indexing with scale
      for (int i=0; i<ARRLEN; i++) {
        a1[i] = -1;
        a2[i] = -1;
      }
      test_ci_scl(a1, -1);
      for (int i=0; i<ARRLEN; i++) {
        int val = (i%SCALE != 0) ? -1 : -123;
        errn += verify("test_ci_scl: a1", i, a1[i], val);
      }
      test_vi_scl(a2, 123, -1);
      for (int i=0; i<ARRLEN; i++) {
        int val = (i%SCALE != 0) ? -1 : 123;
        errn += verify("test_vi_scl: a2", i, a2[i], val);
      }
      test_cp_scl(a1, a2);
      for (int i=0; i<ARRLEN; i++) {
        int val = (i%SCALE != 0) ? -1 : 123;
        errn += verify("test_cp_scl: a1", i, a1[i], val);
      }
      test_2ci_scl(a1, a2);
      for (int i=0; i<ARRLEN; i++) {
        if (i%SCALE != 0) {
          errn += verify("test_2ci_scl: a1", i, a1[i], -1);
        } else if (i*SCALE < ARRLEN) {
          errn += verify("test_2ci_scl: a1", i*SCALE, a1[i*SCALE], -123);
        }
        if (i%SCALE != 0) {
          errn += verify("test_2ci_scl: a2", i, a2[i], -1);
        } else if (i*SCALE < ARRLEN) {
          errn += verify("test_2ci_scl: a2", i*SCALE, a2[i*SCALE], -103);
        }
      }
      test_2vi_scl(a1, a2, 123, 103);
      for (int i=0; i<ARRLEN; i++) {
        if (i%SCALE != 0) {
          errn += verify("test_2vi_scl: a1", i, a1[i], -1);
        } else if (i*SCALE < ARRLEN) {
          errn += verify("test_2vi_scl: a1", i*SCALE, a1[i*SCALE], 123);
        }
        if (i%SCALE != 0) {
          errn += verify("test_2vi_scl: a2", i, a2[i], -1);
        } else if (i*SCALE < ARRLEN) {
          errn += verify("test_2vi_scl: a2", i*SCALE, a2[i*SCALE], 103);
        }
      }
      // Reset for 2 arrays with relative aligned offset
      for (int i=0; i<ARRLEN; i++) {
        a1[i] = -1;
        a2[i] = -1;
      }
      test_vi(a2, 123, -1);
      test_cp_alndst(a1, a2);
      for (int i=0; i<ALIGN_OFF; i++) {
        errn += verify("test_cp_alndst: a1", i, a1[i], -1);
      }
      for (int i=ALIGN_OFF; i<ARRLEN; i++) {
        errn += verify("test_cp_alndst: a1", i, a1[i], 123);
      }
      for (int i=0; i<ALIGN_OFF; i++) {
        a1[i] = 123;
      }
      test_vi(a2, -123, 123);
      test_cp_alnsrc(a1, a2);
      for (int i=0; i<ARRLEN-ALIGN_OFF; i++) {
        errn += verify("test_cp_alnsrc: a1", i, a1[i], -123);
      }
      for (int i=ARRLEN-ALIGN_OFF; i<ARRLEN; i++) {
        errn += verify("test_cp_alnsrc: a1", i, a1[i], 123);
      }
      for (int i=0; i<ARRLEN; i++) {
        a1[i] = -1;
        a2[i] = -1;
      }
      test_2ci_aln(a1, a2);
      for (int i=0; i<ALIGN_OFF; i++) {
        errn += verify("test_2ci_aln: a1", i, a1[i], -1);
      }
      for (int i=ALIGN_OFF; i<ARRLEN; i++) {
        errn += verify("test_2ci_aln: a1", i, a1[i], -123);
      }
      for (int i=0; i<ARRLEN-ALIGN_OFF; i++) {
        errn += verify("test_2ci_aln: a2", i, a2[i], -103);
      }
      for (int i=ARRLEN-ALIGN_OFF; i<ARRLEN; i++) {
        errn += verify("test_2ci_aln: a2", i, a2[i], -1);
      }
      for (int i=0; i<ARRLEN; i++) {
        a1[i] = -1;
        a2[i] = -1;
      }
      test_2vi_aln(a1, a2, 123, 103);
      for (int i=0; i<ARRLEN-ALIGN_OFF; i++) {
        errn += verify("test_2vi_aln: a1", i, a1[i], 123);
      }
      for (int i=ARRLEN-ALIGN_OFF; i<ARRLEN; i++) {
        errn += verify("test_2vi_aln: a1", i, a1[i], -1);
      }
      for (int i=0; i<ALIGN_OFF; i++) {
        errn += verify("test_2vi_aln: a2", i, a2[i], -1);
      }
      for (int i=ALIGN_OFF; i<ARRLEN; i++) {
        errn += verify("test_2vi_aln: a2", i, a2[i], 103);
      }

      // Reset for 2 arrays with relative unaligned offset
      for (int i=0; i<ARRLEN; i++) {
        a1[i] = -1;
        a2[i] = -1;
      }
      test_vi(a2, 123, -1);
      test_cp_unalndst(a1, a2);
      for (int i=0; i<UNALIGN_OFF; i++) {
        errn += verify("test_cp_unalndst: a1", i, a1[i], -1);
      }
      for (int i=UNALIGN_OFF; i<ARRLEN; i++) {
        errn += verify("test_cp_unalndst: a1", i, a1[i], 123);
      }
      test_vi(a2, -123, 123);
      test_cp_unalnsrc(a1, a2);
      for (int i=0; i<ARRLEN-UNALIGN_OFF; i++) {
        errn += verify("test_cp_unalnsrc: a1", i, a1[i], -123);
      }
      for (int i=ARRLEN-UNALIGN_OFF; i<ARRLEN; i++) {
        errn += verify("test_cp_unalnsrc: a1", i, a1[i], 123);
      }
      for (int i=0; i<ARRLEN; i++) {
        a1[i] = -1;
        a2[i] = -1;
      }
      test_2ci_unaln(a1, a2);
      for (int i=0; i<UNALIGN_OFF; i++) {
        errn += verify("test_2ci_unaln: a1", i, a1[i], -1);
      }
      for (int i=UNALIGN_OFF; i<ARRLEN; i++) {
        errn += verify("test_2ci_unaln: a1", i, a1[i], -123);
      }
      for (int i=0; i<ARRLEN-UNALIGN_OFF; i++) {
        errn += verify("test_2ci_unaln: a2", i, a2[i], -103);
      }
      for (int i=ARRLEN-UNALIGN_OFF; i<ARRLEN; i++) {
        errn += verify("test_2ci_unaln: a2", i, a2[i], -1);
      }
      for (int i=0; i<ARRLEN; i++) {
        a1[i] = -1;
        a2[i] = -1;
      }
      test_2vi_unaln(a1, a2, 123, 103);
      for (int i=0; i<ARRLEN-UNALIGN_OFF; i++) {
        errn += verify("test_2vi_unaln: a1", i, a1[i], 123);
      }
      for (int i=ARRLEN-UNALIGN_OFF; i<ARRLEN; i++) {
        errn += verify("test_2vi_unaln: a1", i, a1[i], -1);
      }
      for (int i=0; i<UNALIGN_OFF; i++) {
        errn += verify("test_2vi_unaln: a2", i, a2[i], -1);
      }
      for (int i=UNALIGN_OFF; i<ARRLEN; i++) {
        errn += verify("test_2vi_unaln: a2", i, a2[i], 103);
      }

      // Reset for aligned overlap initialization
      for (int i=0; i<ALIGN_OFF; i++) {
        a1[i] = i;
      }
      for (int i=ALIGN_OFF; i<ARRLEN; i++) {
        a1[i] = -1;
      }
      test_cp_alndst(a1, a1);
      for (int i=0; i<ARRLEN; i++) {
        int v = i%ALIGN_OFF;
        errn += verify("test_cp_alndst_overlap: a1", i, a1[i], v);
      }
      for (int i=0; i<ALIGN_OFF; i++) {
        a1[i+ALIGN_OFF] = -1;
      }
      test_cp_alnsrc(a1, a1);
      for (int i=0; i<ALIGN_OFF; i++) {
        errn += verify("test_cp_alnsrc_overlap: a1", i, a1[i], -1);
      }
      for (int i=ALIGN_OFF; i<ARRLEN; i++) {
        int v = i%ALIGN_OFF;
        errn += verify("test_cp_alnsrc_overlap: a1", i, a1[i], v);
      }
      for (int i=0; i<ARRLEN; i++) {
        a1[i] = -1;
      }
      test_2ci_aln(a1, a1);
      for (int i=0; i<ARRLEN-ALIGN_OFF; i++) {
        errn += verify("test_2ci_aln_overlap: a1", i, a1[i], -103);
      }
      for (int i=ARRLEN-ALIGN_OFF; i<ARRLEN; i++) {
        errn += verify("test_2ci_aln_overlap: a1", i, a1[i], -123);
      }
      for (int i=0; i<ARRLEN; i++) {
        a1[i] = -1;
      }
      test_2vi_aln(a1, a1, 123, 103);
      for (int i=0; i<ARRLEN-ALIGN_OFF; i++) {
        errn += verify("test_2vi_aln_overlap: a1", i, a1[i], 123);
      }
      for (int i=ARRLEN-ALIGN_OFF; i<ARRLEN; i++) {
        errn += verify("test_2vi_aln_overlap: a1", i, a1[i], 103);
      }

      // Reset for unaligned overlap initialization
      for (int i=0; i<UNALIGN_OFF; i++) {
        a1[i] = i;
      }
      for (int i=UNALIGN_OFF; i<ARRLEN; i++) {
        a1[i] = -1;
      }
      test_cp_unalndst(a1, a1);
      for (int i=0; i<ARRLEN; i++) {
        int v = i%UNALIGN_OFF;
        errn += verify("test_cp_unalndst_overlap: a1", i, a1[i], v);
      }
      for (int i=0; i<UNALIGN_OFF; i++) {
        a1[i+UNALIGN_OFF] = -1;
      }
      test_cp_unalnsrc(a1, a1);
      for (int i=0; i<UNALIGN_OFF; i++) {
        errn += verify("test_cp_unalnsrc_overlap: a1", i, a1[i], -1);
      }
      for (int i=UNALIGN_OFF; i<ARRLEN; i++) {
        int v = i%UNALIGN_OFF;
        errn += verify("test_cp_unalnsrc_overlap: a1", i, a1[i], v);
      }
      for (int i=0; i<ARRLEN; i++) {
        a1[i] = -1;
      }
      test_2ci_unaln(a1, a1);
      for (int i=0; i<ARRLEN-UNALIGN_OFF; i++) {
        errn += verify("test_2ci_unaln_overlap: a1", i, a1[i], -103);
      }
      for (int i=ARRLEN-UNALIGN_OFF; i<ARRLEN; i++) {
        errn += verify("test_2ci_unaln_overlap: a1", i, a1[i], -123);
      }
      for (int i=0; i<ARRLEN; i++) {
        a1[i] = -1;
      }
      test_2vi_unaln(a1, a1, 123, 103);
      for (int i=0; i<ARRLEN-UNALIGN_OFF; i++) {
        errn += verify("test_2vi_unaln_overlap: a1", i, a1[i], 123);
      }
      for (int i=ARRLEN-UNALIGN_OFF; i<ARRLEN; i++) {
        errn += verify("test_2vi_unaln_overlap: a1", i, a1[i], 103);
      }

    }

    if (errn > 0 || test_only)
      return errn;

    // Initialize
    for (int i=0; i<ARRLEN; i++) {
      a1[i] = -1;
      a2[i] = -1;
    }
    System.out.println("Time");
    long start, end;
    start = System.currentTimeMillis();
    for (int i=0; i<ITERS; i++) {
      test_ci(a1);
    }
    end = System.currentTimeMillis();
    System.out.println("test_ci: " + (end - start));
    start = System.currentTimeMillis();
    for (int i=0; i<ITERS; i++) {
      test_vi(a2, 123, -1);
    }
    end = System.currentTimeMillis();
    System.out.println("test_vi: " + (end - start));
    start = System.currentTimeMillis();
    for (int i=0; i<ITERS; i++) {
      test_cp(a1, a2);
    }
    end = System.currentTimeMillis();
    System.out.println("test_cp: " + (end - start));
    start = System.currentTimeMillis();
    for (int i=0; i<ITERS; i++) {
      test_2ci(a1, a2);
    }
    end = System.currentTimeMillis();
    System.out.println("test_2ci: " + (end - start));
    start = System.currentTimeMillis();
    for (int i=0; i<ITERS; i++) {
      test_2vi(a1, a2, 123, 103);
    }
    end = System.currentTimeMillis();
    System.out.println("test_2vi: " + (end - start));

    start = System.currentTimeMillis();
    for (int i=0; i<ITERS; i++) {
      test_ci_neg(a1, 123);
    }
    end = System.currentTimeMillis();
    System.out.println("test_ci_neg: " + (end - start));
    start = System.currentTimeMillis();
    for (int i=0; i<ITERS; i++) {
      test_vi_neg(a2, 123, 103);
    }
    end = System.currentTimeMillis();
    System.out.println("test_vi_neg: " + (end - start));
    start = System.currentTimeMillis();
    for (int i=0; i<ITERS; i++) {
      test_cp_neg(a1, a2);
    }
    end = System.currentTimeMillis();
    System.out.println("test_cp_neg: " + (end - start));
    start = System.currentTimeMillis();
    for (int i=0; i<ITERS; i++) {
      test_2ci_neg(a1, a2);
    }
    end = System.currentTimeMillis();
    System.out.println("test_2ci_neg: " + (end - start));
    start = System.currentTimeMillis();
    for (int i=0; i<ITERS; i++) {
      test_2vi_neg(a1, a2, 123, 103);
    }
    end = System.currentTimeMillis();
    System.out.println("test_2vi_neg: " + (end - start));

    start = System.currentTimeMillis();
    for (int i=0; i<ITERS; i++) {
      test_ci_oppos(a1, 123);
    }
    end = System.currentTimeMillis();
    System.out.println("test_ci_oppos: " + (end - start));
    start = System.currentTimeMillis();
    for (int i=0; i<ITERS; i++) {
      test_vi_oppos(a2, 123, 103);
    }
    end = System.currentTimeMillis();
    System.out.println("test_vi_oppos: " + (end - start));
    start = System.currentTimeMillis();
    for (int i=0; i<ITERS; i++) {
      test_cp_oppos(a1, a2);
    }
    end = System.currentTimeMillis();
    System.out.println("test_cp_oppos: " + (end - start));
    start = System.currentTimeMillis();
    for (int i=0; i<ITERS; i++) {
      test_2ci_oppos(a1, a2);
    }
    end = System.currentTimeMillis();
    System.out.println("test_2ci_oppos: " + (end - start));
    start = System.currentTimeMillis();
    for (int i=0; i<ITERS; i++) {
      test_2vi_oppos(a1, a2, 123, 103);
    }
    end = System.currentTimeMillis();
    System.out.println("test_2vi_oppos: " + (end - start));

    start = System.currentTimeMillis();
    for (int i=0; i<ITERS; i++) {
      test_ci_off(a1, 123);
    }
    end = System.currentTimeMillis();
    System.out.println("test_ci_off: " + (end - start));
    start = System.currentTimeMillis();
    for (int i=0; i<ITERS; i++) {
      test_vi_off(a2, 123, 103);
    }
    end = System.currentTimeMillis();
    System.out.println("test_vi_off: " + (end - start));
    start = System.currentTimeMillis();
    for (int i=0; i<ITERS; i++) {
      test_cp_off(a1, a2);
    }
    end = System.currentTimeMillis();
    System.out.println("test_cp_off: " + (end - start));
    start = System.currentTimeMillis();
    for (int i=0; i<ITERS; i++) {
      test_2ci_off(a1, a2);
    }
    end = System.currentTimeMillis();
    System.out.println("test_2ci_off: " + (end - start));
    start = System.currentTimeMillis();
    for (int i=0; i<ITERS; i++) {
      test_2vi_off(a1, a2, 123, 103);
    }
    end = System.currentTimeMillis();
    System.out.println("test_2vi_off: " + (end - start));

    start = System.currentTimeMillis();
    for (int i=0; i<ITERS; i++) {
      test_ci_inv(a1, OFFSET, 123);
    }
    end = System.currentTimeMillis();
    System.out.println("test_ci_inv: " + (end - start));
    start = System.currentTimeMillis();
    for (int i=0; i<ITERS; i++) {
      test_vi_inv(a2, 123, OFFSET, 103);
    }
    end = System.currentTimeMillis();
    System.out.println("test_vi_inv: " + (end - start));
    start = System.currentTimeMillis();
    for (int i=0; i<ITERS; i++) {
      test_cp_inv(a1, a2, OFFSET);
    }
    end = System.currentTimeMillis();
    System.out.println("test_cp_inv: " + (end - start));
    start = System.currentTimeMillis();
    for (int i=0; i<ITERS; i++) {
      test_2ci_inv(a1, a2, OFFSET);
    }
    end = System.currentTimeMillis();
    System.out.println("test_2ci_inv: " + (end - start));
    start = System.currentTimeMillis();
    for (int i=0; i<ITERS; i++) {
      test_2vi_inv(a1, a2, 123, 103, OFFSET);
    }
    end = System.currentTimeMillis();
    System.out.println("test_2vi_inv: " + (end - start));

    start = System.currentTimeMillis();
    for (int i=0; i<ITERS; i++) {
      test_ci_scl(a1, 123);
    }
    end = System.currentTimeMillis();
    System.out.println("test_ci_scl: " + (end - start));
    start = System.currentTimeMillis();
    for (int i=0; i<ITERS; i++) {
      test_vi_scl(a2, 123, 103);
    }
    end = System.currentTimeMillis();
    System.out.println("test_vi_scl: " + (end - start));
    start = System.currentTimeMillis();
    for (int i=0; i<ITERS; i++) {
      test_cp_scl(a1, a2);
    }
    end = System.currentTimeMillis();
    System.out.println("test_cp_scl: " + (end - start));
    start = System.currentTimeMillis();
    for (int i=0; i<ITERS; i++) {
      test_2ci_scl(a1, a2);
    }
    end = System.currentTimeMillis();
    System.out.println("test_2ci_scl: " + (end - start));
    start = System.currentTimeMillis();
    for (int i=0; i<ITERS; i++) {
      test_2vi_scl(a1, a2, 123, 103);
    }
    end = System.currentTimeMillis();
    System.out.println("test_2vi_scl: " + (end - start));

    start = System.currentTimeMillis();
    for (int i=0; i<ITERS; i++) {
      test_cp_alndst(a1, a2);
    }
    end = System.currentTimeMillis();
    System.out.println("test_cp_alndst: " + (end - start));
    start = System.currentTimeMillis();
    for (int i=0; i<ITERS; i++) {
      test_cp_alnsrc(a1, a2);
    }
    end = System.currentTimeMillis();
    System.out.println("test_cp_alnsrc: " + (end - start));
    start = System.currentTimeMillis();
    for (int i=0; i<ITERS; i++) {
      test_2ci_aln(a1, a2);
    }
    end = System.currentTimeMillis();
    System.out.println("test_2ci_aln: " + (end - start));
    start = System.currentTimeMillis();
    for (int i=0; i<ITERS; i++) {
      test_2vi_aln(a1, a2, 123, 103);
    }
    end = System.currentTimeMillis();
    System.out.println("test_2vi_aln: " + (end - start));

    start = System.currentTimeMillis();
    for (int i=0; i<ITERS; i++) {
      test_cp_unalndst(a1, a2);
    }
    end = System.currentTimeMillis();
    System.out.println("test_cp_unalndst: " + (end - start));
    start = System.currentTimeMillis();
    for (int i=0; i<ITERS; i++) {
      test_cp_unalnsrc(a1, a2);
    }
    end = System.currentTimeMillis();
    System.out.println("test_cp_unalnsrc: " + (end - start));
    start = System.currentTimeMillis();
    for (int i=0; i<ITERS; i++) {
      test_2ci_unaln(a1, a2);
    }
    end = System.currentTimeMillis();
    System.out.println("test_2ci_unaln: " + (end - start));
    start = System.currentTimeMillis();
    for (int i=0; i<ITERS; i++) {
      test_2vi_unaln(a1, a2, 123, 103);
    }
    end = System.currentTimeMillis();
    System.out.println("test_2vi_unaln: " + (end - start));

    return errn;
  }

  private final static long byte_offset(int i) {
    return ((long)i << 2) + BASE;
  }

  static void test_ci(int[] a) {
    for (int i = 0; i < ARRLEN; i+=1) {
      unsafe.putIntVolatile(a, byte_offset(i), -123);
    }
  }
  static void test_vi(int[] a, int b, int old) {
    for (int i = 0; i < ARRLEN; i+=1) {
      unsafe.putIntVolatile(a, byte_offset(i), b);
    }
  }
  static void test_cp(int[] a, int[] b) {
    for (int i = 0; i < ARRLEN; i+=1) {
      unsafe.putIntVolatile(a, byte_offset(i), b[i]);
    }
  }
  static void test_2ci(int[] a, int[] b) {
    for (int i = 0; i < ARRLEN; i+=1) {
      unsafe.putIntVolatile(a, byte_offset(i), -123);
      unsafe.putIntVolatile(b, byte_offset(i), -103);
    }
  }
  static void test_2vi(int[] a, int[] b, int c, int d) {
    for (int i = 0; i < ARRLEN; i+=1) {
      unsafe.putIntVolatile(a, byte_offset(i), c);
      unsafe.putIntVolatile(b, byte_offset(i), d);
    }
  }
  static void test_ci_neg(int[] a, int old) {
    for (int i = ARRLEN-1; i >= 0; i-=1) {
      unsafe.putIntVolatile(a, byte_offset(i), -123);
    }
  }
  static void test_vi_neg(int[] a, int b, int old) {
    for (int i = ARRLEN-1; i >= 0; i-=1) {
      unsafe.putIntVolatile(a, byte_offset(i), b);
    }
  }
  static void test_cp_neg(int[] a, int[] b) {
    for (int i = ARRLEN-1; i >= 0; i-=1) {
      unsafe.putIntVolatile(a, byte_offset(i), b[i]);
    }
  }
  static void test_2ci_neg(int[] a, int[] b) {
    for (int i = ARRLEN-1; i >= 0; i-=1) {
      unsafe.putIntVolatile(a, byte_offset(i), -123);
      unsafe.putIntVolatile(b, byte_offset(i), -103);
    }
  }
  static void test_2vi_neg(int[] a, int[] b, int c, int d) {
    for (int i = ARRLEN-1; i >= 0; i-=1) {
      unsafe.putIntVolatile(a, byte_offset(i), c);
      unsafe.putIntVolatile(b, byte_offset(i), d);
    }
  }
  static void test_ci_oppos(int[] a, int old) {
    int limit = ARRLEN-1;
    for (int i = 0; i < ARRLEN; i+=1) {
      unsafe.putIntVolatile(a, byte_offset(limit-i), -123);
    }
  }
  static void test_vi_oppos(int[] a, int b, int old) {
    int limit = ARRLEN-1;
    for (int i = limit; i >= 0; i-=1) {
      unsafe.putIntVolatile(a, byte_offset(limit-i), b);
    }
  }
  static void test_cp_oppos(int[] a, int[] b) {
    int limit = ARRLEN-1;
    for (int i = 0; i < ARRLEN; i+=1) {
      unsafe.putIntVolatile(a, byte_offset(i), b[limit-i]);
    }
  }
  static void test_2ci_oppos(int[] a, int[] b) {
    int limit = ARRLEN-1;
    for (int i = 0; i < ARRLEN; i+=1) {
      unsafe.putIntVolatile(a, byte_offset(limit-i), -123);
      unsafe.putIntVolatile(b, byte_offset(i), -103);
    }
  }
  static void test_2vi_oppos(int[] a, int[] b, int c, int d) {
    int limit = ARRLEN-1;
    for (int i = limit; i >= 0; i-=1) {
      unsafe.putIntVolatile(a, byte_offset(i), c);
      unsafe.putIntVolatile(b, byte_offset(limit-i), d);
    }
  }
  static void test_ci_off(int[] a, int old) {
    for (int i = 0; i < ARRLEN-OFFSET; i+=1) {
      unsafe.putIntVolatile(a, byte_offset(i+OFFSET), -123);
    }
  }
  static void test_vi_off(int[] a, int b, int old) {
    for (int i = 0; i < ARRLEN-OFFSET; i+=1) {
      unsafe.putIntVolatile(a, byte_offset(i+OFFSET), b);
    }
  }
  static void test_cp_off(int[] a, int[] b) {
    for (int i = 0; i < ARRLEN-OFFSET; i+=1) {
      unsafe.putIntVolatile(a, byte_offset(i+OFFSET), b[i+OFFSET]);
    }
  }
  static void test_2ci_off(int[] a, int[] b) {
    for (int i = 0; i < ARRLEN-OFFSET; i+=1) {
      unsafe.putIntVolatile(a, byte_offset(i+OFFSET), -123);
      unsafe.putIntVolatile(b, byte_offset(i+OFFSET), -103);
    }
  }
  static void test_2vi_off(int[] a, int[] b, int c, int d) {
    for (int i = 0; i < ARRLEN-OFFSET; i+=1) {
      unsafe.putIntVolatile(a, byte_offset(i+OFFSET), c);
      unsafe.putIntVolatile(b, byte_offset(i+OFFSET), d);
    }
  }
  static void test_ci_inv(int[] a, int k, int old) {
    for (int i = 0; i < ARRLEN-k; i+=1) {
      unsafe.putIntVolatile(a, byte_offset(i+k), -123);
    }
  }
  static void test_vi_inv(int[] a, int b, int k, int old) {
    for (int i = 0; i < ARRLEN-k; i+=1) {
      unsafe.putIntVolatile(a, byte_offset(i+k), b);
    }
  }
  static void test_cp_inv(int[] a, int[] b, int k) {
    for (int i = 0; i < ARRLEN-k; i+=1) {
      unsafe.putIntVolatile(a, byte_offset(i+k), b[i+k]);
    }
  }
  static void test_2ci_inv(int[] a, int[] b, int k) {
    for (int i = 0; i < ARRLEN-k; i+=1) {
      unsafe.putIntVolatile(a, byte_offset(i+k), -123);
      unsafe.putIntVolatile(b, byte_offset(i+k), -103);
    }
  }
  static void test_2vi_inv(int[] a, int[] b, int c, int d, int k) {
    for (int i = 0; i < ARRLEN-k; i+=1) {
      unsafe.putIntVolatile(a, byte_offset(i+k), c);
      unsafe.putIntVolatile(b, byte_offset(i+k), d);
    }
  }
  static void test_ci_scl(int[] a, int old) {
    for (int i = 0; i*SCALE < ARRLEN; i+=1) {
      unsafe.putIntVolatile(a, byte_offset(i*SCALE), -123);
    }
  }
  static void test_vi_scl(int[] a, int b, int old) {
    for (int i = 0; i*SCALE < ARRLEN; i+=1) {
      unsafe.putIntVolatile(a, byte_offset(i*SCALE), b);
    }
  }
  static void test_cp_scl(int[] a, int[] b) {
    for (int i = 0; i*SCALE < ARRLEN; i+=1) {
      unsafe.putIntVolatile(a, byte_offset(i*SCALE), b[i*SCALE]);
    }
  }
  static void test_2ci_scl(int[] a, int[] b) {
    for (int i = 0; i*SCALE < ARRLEN; i+=1) {
      unsafe.putIntVolatile(a, byte_offset(i*SCALE), -123);
      unsafe.putIntVolatile(b, byte_offset(i*SCALE), -103);
    }
  }
  static void test_2vi_scl(int[] a, int[] b, int c, int d) {
    for (int i = 0; i*SCALE < ARRLEN; i+=1) {
      unsafe.putIntVolatile(a, byte_offset(i*SCALE), c);
      unsafe.putIntVolatile(b, byte_offset(i*SCALE), d);
    }
  }
  static void test_cp_alndst(int[] a, int[] b) {
    for (int i = 0; i < ARRLEN-ALIGN_OFF; i+=1) {
      unsafe.putIntVolatile(a, byte_offset(i+ALIGN_OFF), b[i]);
    }
  }
  static void test_cp_alnsrc(int[] a, int[] b) {
    for (int i = 0; i < ARRLEN-ALIGN_OFF; i+=1) {
      unsafe.putIntVolatile(a, byte_offset(i), b[i+ALIGN_OFF]);
    }
  }
  static void test_2ci_aln(int[] a, int[] b) {
    for (int i = 0; i < ARRLEN-ALIGN_OFF; i+=1) {
      unsafe.putIntVolatile(a, byte_offset(i+ALIGN_OFF), -123);
      unsafe.putIntVolatile(b, byte_offset(i), -103);
    }
  }
  static void test_2vi_aln(int[] a, int[] b, int c, int d) {
    for (int i = 0; i < ARRLEN-ALIGN_OFF; i+=1) {
      unsafe.putIntVolatile(a, byte_offset(i), c);
      unsafe.putIntVolatile(b, byte_offset(i+ALIGN_OFF), d);
    }
  }
  static void test_cp_unalndst(int[] a, int[] b) {
    for (int i = 0; i < ARRLEN-UNALIGN_OFF; i+=1) {
      unsafe.putIntVolatile(a, byte_offset(i+UNALIGN_OFF), b[i]);
    }
  }
  static void test_cp_unalnsrc(int[] a, int[] b) {
    for (int i = 0; i < ARRLEN-UNALIGN_OFF; i+=1) {
      unsafe.putIntVolatile(a, byte_offset(i), b[i+UNALIGN_OFF]);
    }
  }
  static void test_2ci_unaln(int[] a, int[] b) {
    for (int i = 0; i < ARRLEN-UNALIGN_OFF; i+=1) {
      unsafe.putIntVolatile(a, byte_offset(i+UNALIGN_OFF), -123);
      unsafe.putIntVolatile(b, byte_offset(i), -103);
    }
  }
  static void test_2vi_unaln(int[] a, int[] b, int c, int d) {
    for (int i = 0; i < ARRLEN-UNALIGN_OFF; i+=1) {
      unsafe.putIntVolatile(a, byte_offset(i), c);
      unsafe.putIntVolatile(b, byte_offset(i+UNALIGN_OFF), d);
    }
  }

  static int verify(String text, int i, int elem, int val) {
    if (elem != val) {
      System.err.println(text + "[" + i + "] = " + elem + " != " + val);
      return 1;
    }
    return 0;
  }
}

Other Java examples (source code examples)

Here is a short list of links related to this Java TestIntUnsafeVolatile.java source code file:

... this post is sponsored by my books ...

#1 New Release!

FP Best Seller

 

new blog posts

 

Copyright 1998-2021 Alvin Alexander, alvinalexander.com
All Rights Reserved.

A percentage of advertising revenue from
pages under the /java/jwarehouse URI on this website is
paid back to open source projects.