8059606: Enable per-method usage of CompileThresholdScaling (per-method compilation thresholds)
Summary: Changed interpreter and compilation policies to allow using CompileThresholdScaling on a per-method level
Reviewed-by: jrose, kvn
/*
* Copyright (c) 2014, 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.
*/
import com.oracle.java.testlibrary.*;
/*
* @test CheckCompileThresholdScaling
* @bug 8059604
* @summary "Add CompileThresholdScalingPercentage flag to control when methods are first compiled (with +/-TieredCompilation)"
* @library /testlibrary
* @run main CheckCompileThresholdScaling
*/
public class CheckCompileThresholdScaling {
// The flag CompileThresholdScaling scales compilation thresholds
// in the following way:
//
// - if CompileThresholdScaling==1.0, the default threshold values
// are used;
//
// - if CompileThresholdScaling>1.0, threshold values are scaled
// up (e.g., CompileThresholdScalingPercentage=1.2 scales up
// thresholds by a factor of 1.2X);
//
// - if CompileThresholdScaling<1.0, threshold values are scaled
// down;
//
// - if CompileThresholdScaling==0, compilation is disabled
// (equivalent to using -Xint).
//
// With tiered compilation enabled, the values of the following
// flags are changed:
//
// Tier0InvokeNotifyFreqLog, Tier0BackedgeNotifyFreqLog,
// Tier3InvocationThreshold, Tier3MinInvocationThreshold,
// Tier3CompileThreshold, Tier3BackEdgeThreshold,
// Tier2InvokeNotifyFreqLog, Tier2BackedgeNotifyFreqLog,
// Tier3InvokeNotifyFreqLog, Tier3BackedgeNotifyFreqLog,
// Tier23InlineeNotifyFreqLog, Tier4InvocationThreshold,
// Tier4MinInvocationThreshold, Tier4CompileThreshold,
// Tier4BackEdgeThreshold
//
// With tiered compilation disabled the value of CompileThreshold
// is scaled.
private static final String[][] NON_TIERED_ARGUMENTS = {
{
"-XX:-TieredCompilation",
"-XX:+PrintFlagsFinal",
"-XX:CompileThreshold=1000",
"-version"
},
{
"-XX:-TieredCompilation",
"-XX:+PrintFlagsFinal",
"-XX:CompileThreshold=1000",
"-XX:CompileThresholdScaling=1.25",
"-version"
},
{
"-XX:-TieredCompilation",
"-XX:+PrintFlagsFinal",
"-XX:CompileThreshold=1000",
"-XX:CompileThresholdScaling=0.75",
"-version"
},
{
"-XX:-TieredCompilation",
"-XX:+PrintFlagsFinal",
"-XX:CompileThreshold=0",
"-XX:CompileThresholdScaling=0.75",
"-version"
}
};
private static final String[][] NON_TIERED_EXPECTED_OUTPUTS = {
{
"intx CompileThreshold := 1000 {pd product}",
"double CompileThresholdScaling = 1.000000 {product}"
},
{
"intx CompileThreshold := 1250 {pd product}",
"double CompileThresholdScaling := 1.250000 {product}"
},
{
"intx CompileThreshold := 750 {pd product}",
"double CompileThresholdScaling := 0.750000 {product}"
},
{
"intx CompileThreshold := 0 {pd product}",
"double CompileThresholdScaling := 0.750000 {product}",
"interpreted mode"
}
};
private static final String[][] TIERED_ARGUMENTS = {
{
"-XX:+TieredCompilation",
"-XX:+PrintFlagsFinal",
"-XX:Tier0InvokeNotifyFreqLog=7",
"-XX:Tier0BackedgeNotifyFreqLog=10",
"-XX:Tier3InvocationThreshold=200",
"-XX:Tier3MinInvocationThreshold=100",
"-XX:Tier3CompileThreshold=2000",
"-XX:Tier3BackEdgeThreshold=60000",
"-XX:Tier2InvokeNotifyFreqLog=11",
"-XX:Tier2BackedgeNotifyFreqLog=14",
"-XX:Tier3InvokeNotifyFreqLog=10",
"-XX:Tier3BackedgeNotifyFreqLog=13",
"-XX:Tier23InlineeNotifyFreqLog=20",
"-XX:Tier4InvocationThreshold=5000",
"-XX:Tier4MinInvocationThreshold=600",
"-XX:Tier4CompileThreshold=15000",
"-XX:Tier4BackEdgeThreshold=40000",
"-version"
},
{
"-XX:+TieredCompilation",
"-XX:+PrintFlagsFinal",
"-XX:Tier0InvokeNotifyFreqLog=7",
"-XX:Tier0BackedgeNotifyFreqLog=10",
"-XX:Tier3InvocationThreshold=200",
"-XX:Tier3MinInvocationThreshold=100",
"-XX:Tier3CompileThreshold=2000",
"-XX:Tier3BackEdgeThreshold=60000",
"-XX:Tier2InvokeNotifyFreqLog=11",
"-XX:Tier2BackedgeNotifyFreqLog=14",
"-XX:Tier3InvokeNotifyFreqLog=10",
"-XX:Tier3BackedgeNotifyFreqLog=13",
"-XX:Tier23InlineeNotifyFreqLog=20",
"-XX:Tier4InvocationThreshold=5000",
"-XX:Tier4MinInvocationThreshold=600",
"-XX:Tier4CompileThreshold=15000",
"-XX:Tier4BackEdgeThreshold=40000",
"-XX:CompileThresholdScaling=0.75",
"-version"
},
{
"-XX:+TieredCompilation",
"-XX:+PrintFlagsFinal",
"-XX:Tier0InvokeNotifyFreqLog=7",
"-XX:Tier0BackedgeNotifyFreqLog=10",
"-XX:Tier3InvocationThreshold=200",
"-XX:Tier3MinInvocationThreshold=100",
"-XX:Tier3CompileThreshold=2000",
"-XX:Tier3BackEdgeThreshold=60000",
"-XX:Tier2InvokeNotifyFreqLog=11",
"-XX:Tier2BackedgeNotifyFreqLog=14",
"-XX:Tier3InvokeNotifyFreqLog=10",
"-XX:Tier3BackedgeNotifyFreqLog=13",
"-XX:Tier23InlineeNotifyFreqLog=20",
"-XX:Tier4InvocationThreshold=5000",
"-XX:Tier4MinInvocationThreshold=600",
"-XX:Tier4CompileThreshold=15000",
"-XX:Tier4BackEdgeThreshold=40000",
"-XX:CompileThresholdScaling=1.25",
"-version"
},
{
"-XX:+TieredCompilation",
"-XX:+PrintFlagsFinal",
"-XX:Tier0InvokeNotifyFreqLog=7",
"-XX:Tier0BackedgeNotifyFreqLog=10",
"-XX:Tier3InvocationThreshold=200",
"-XX:Tier3MinInvocationThreshold=100",
"-XX:Tier3CompileThreshold=2000",
"-XX:Tier3BackEdgeThreshold=60000",
"-XX:Tier2InvokeNotifyFreqLog=11",
"-XX:Tier2BackedgeNotifyFreqLog=14",
"-XX:Tier3InvokeNotifyFreqLog=10",
"-XX:Tier3BackedgeNotifyFreqLog=13",
"-XX:Tier23InlineeNotifyFreqLog=20",
"-XX:Tier4InvocationThreshold=5000",
"-XX:Tier4MinInvocationThreshold=600",
"-XX:Tier4CompileThreshold=15000",
"-XX:Tier4BackEdgeThreshold=40000",
"-XX:CompileThresholdScaling=2.0",
"-version"
},
{
"-XX:+TieredCompilation",
"-XX:+PrintFlagsFinal",
"-XX:Tier0InvokeNotifyFreqLog=7",
"-XX:Tier0BackedgeNotifyFreqLog=10",
"-XX:Tier3InvocationThreshold=200",
"-XX:Tier3MinInvocationThreshold=100",
"-XX:Tier3CompileThreshold=2000",
"-XX:Tier3BackEdgeThreshold=60000",
"-XX:Tier2InvokeNotifyFreqLog=11",
"-XX:Tier2BackedgeNotifyFreqLog=14",
"-XX:Tier3InvokeNotifyFreqLog=10",
"-XX:Tier3BackedgeNotifyFreqLog=13",
"-XX:Tier23InlineeNotifyFreqLog=20",
"-XX:Tier4InvocationThreshold=5000",
"-XX:Tier4MinInvocationThreshold=600",
"-XX:Tier4CompileThreshold=15000",
"-XX:Tier4BackEdgeThreshold=40000",
"-XX:CompileThresholdScaling=0.0",
"-version"
}
};
private static final String[][] TIERED_EXPECTED_OUTPUTS = {
{
"intx Tier0BackedgeNotifyFreqLog := 10 {product}",
"intx Tier0InvokeNotifyFreqLog := 7 {product}",
"intx Tier23InlineeNotifyFreqLog := 20 {product}",
"intx Tier2BackedgeNotifyFreqLog := 14 {product}",
"intx Tier2InvokeNotifyFreqLog := 11 {product}",
"intx Tier3BackEdgeThreshold := 60000 {product}",
"intx Tier3BackedgeNotifyFreqLog := 13 {product}",
"intx Tier3CompileThreshold := 2000 {product}",
"intx Tier3InvocationThreshold := 200 {product}",
"intx Tier3InvokeNotifyFreqLog := 10 {product}",
"intx Tier3MinInvocationThreshold := 100 {product}",
"intx Tier4BackEdgeThreshold := 40000 {product}",
"intx Tier4CompileThreshold := 15000 {product}",
"intx Tier4InvocationThreshold := 5000 {product}",
"intx Tier4MinInvocationThreshold := 600 {product}",
"double CompileThresholdScaling = 1.000000 {product}"
},
{
"intx Tier0BackedgeNotifyFreqLog := 9 {product}",
"intx Tier0InvokeNotifyFreqLog := 6 {product}",
"intx Tier23InlineeNotifyFreqLog := 19 {product}",
"intx Tier2BackedgeNotifyFreqLog := 13 {product}",
"intx Tier2InvokeNotifyFreqLog := 10 {product}",
"intx Tier3BackEdgeThreshold := 45000 {product}",
"intx Tier3BackedgeNotifyFreqLog := 12 {product}",
"intx Tier3CompileThreshold := 1500 {product}",
"intx Tier3InvocationThreshold := 150 {product}",
"intx Tier3InvokeNotifyFreqLog := 9 {product}",
"intx Tier3MinInvocationThreshold := 75 {product}",
"intx Tier4BackEdgeThreshold := 30000 {product}",
"intx Tier4CompileThreshold := 11250 {product}",
"intx Tier4InvocationThreshold := 3750 {product}",
"intx Tier4MinInvocationThreshold := 450 {product}",
"double CompileThresholdScaling := 0.750000 {product}"
},
{
"intx Tier0BackedgeNotifyFreqLog := 10 {product}",
"intx Tier0InvokeNotifyFreqLog := 7 {product}",
"intx Tier23InlineeNotifyFreqLog := 20 {product}",
"intx Tier2BackedgeNotifyFreqLog := 14 {product}",
"intx Tier2InvokeNotifyFreqLog := 11 {product}",
"intx Tier3BackEdgeThreshold := 75000 {product}",
"intx Tier3BackedgeNotifyFreqLog := 13 {product}",
"intx Tier3CompileThreshold := 2500 {product}",
"intx Tier3InvocationThreshold := 250 {product}",
"intx Tier3InvokeNotifyFreqLog := 10 {product}",
"intx Tier3MinInvocationThreshold := 125 {product}",
"intx Tier4BackEdgeThreshold := 50000 {product}",
"intx Tier4CompileThreshold := 18750 {product}",
"intx Tier4InvocationThreshold := 6250 {product}",
"intx Tier4MinInvocationThreshold := 750 {product}",
"double CompileThresholdScaling := 1.250000 {product}"
},
{
"intx Tier0BackedgeNotifyFreqLog := 11 {product}",
"intx Tier0InvokeNotifyFreqLog := 8 {product}",
"intx Tier23InlineeNotifyFreqLog := 21 {product}",
"intx Tier2BackedgeNotifyFreqLog := 15 {product}",
"intx Tier2InvokeNotifyFreqLog := 12 {product}",
"intx Tier3BackEdgeThreshold := 120000 {product}",
"intx Tier3BackedgeNotifyFreqLog := 14 {product}",
"intx Tier3CompileThreshold := 4000 {product}",
"intx Tier3InvocationThreshold := 400 {product}",
"intx Tier3InvokeNotifyFreqLog := 11 {product}",
"intx Tier3MinInvocationThreshold := 200 {product}",
"intx Tier4BackEdgeThreshold := 80000 {product}",
"intx Tier4CompileThreshold := 30000 {product}",
"intx Tier4InvocationThreshold := 10000 {product}",
"intx Tier4MinInvocationThreshold := 1200 {product}",
"double CompileThresholdScaling := 2.000000 {product}"
},
{
"intx Tier0BackedgeNotifyFreqLog := 0 {product}",
"intx Tier0InvokeNotifyFreqLog := 0 {product}",
"intx Tier23InlineeNotifyFreqLog := 0 {product}",
"intx Tier2BackedgeNotifyFreqLog := 0 {product}",
"intx Tier2InvokeNotifyFreqLog := 0 {product}",
"intx Tier3BackEdgeThreshold := 0 {product}",
"intx Tier3BackedgeNotifyFreqLog := 0 {product}",
"intx Tier3CompileThreshold := 0 {product}",
"intx Tier3InvocationThreshold := 0 {product}",
"intx Tier3InvokeNotifyFreqLog := 0 {product}",
"intx Tier3MinInvocationThreshold := 0 {product}",
"intx Tier4BackEdgeThreshold := 0 {product}",
"intx Tier4CompileThreshold := 0 {product}",
"intx Tier4InvocationThreshold := 0 {product}",
"intx Tier4MinInvocationThreshold := 0 {product}",
"double CompileThresholdScaling := 0.000000 {product}",
"interpreted mode"
}
};
private static void verifyValidOption(String[] arguments, String[] expected_outputs, boolean tiered) throws Exception {
ProcessBuilder pb;
OutputAnalyzer out;
pb = ProcessTools.createJavaProcessBuilder(arguments);
out = new OutputAnalyzer(pb.start());
try {
for (String expected_output : expected_outputs) {
out.shouldContain(expected_output);
}
out.shouldHaveExitValue(0);
} catch (RuntimeException e) {
// Check if tiered compilation is available in this JVM
// Version. Throw exception only if it is available.
if (!(tiered && out.getOutput().contains("TieredCompilation is disabled in this release."))) {
throw new RuntimeException(e);
}
}
}
public static void main(String[] args) throws Exception {
if (NON_TIERED_ARGUMENTS.length != NON_TIERED_EXPECTED_OUTPUTS.length) {
throw new RuntimeException("Test is set up incorrectly: length of arguments and expected outputs in non-tiered mode of operation does not match.");
}
if (TIERED_ARGUMENTS.length != TIERED_EXPECTED_OUTPUTS.length) {
throw new RuntimeException("Test is set up incorrectly: length of arguments and expected outputs in tiered mode of operation.");
}
// Check if thresholds are scaled properly in non-tiered mode of operation
for (int i = 0; i < NON_TIERED_ARGUMENTS.length; i++) {
verifyValidOption(NON_TIERED_ARGUMENTS[i], NON_TIERED_EXPECTED_OUTPUTS[i], false);
}
// Check if thresholds are scaled properly in tiered mode of operation
for (int i = 0; i < TIERED_ARGUMENTS.length; i++) {
verifyValidOption(TIERED_ARGUMENTS[i], TIERED_EXPECTED_OUTPUTS[i], true);
}
}
}