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/*
* @ test
* @ bug 8275865
* @ requires vm . compiler2 . enabled
* @ summary Verify that the Deoptimization statistics are printed to the VM / Compiler log file
* @ library / test / lib
* @ run main / othervm - Xbatch - XX : - UseOnStackReplacement - XX : - OmitStackTraceInFastThrow
* - XX : + UnlockDiagnosticVMOptions - XX : + LogCompilation
* - XX : - LogVMOutput - XX : LogFile = compilation . log DeoptStats
* @ run main / othervm - Xbatch - XX : - UseOnStackReplacement - XX : - OmitStackTraceInFastThrow
* - XX : + UnlockDiagnosticVMOptions - XX : + LogCompilation
* - XX : + LogVMOutput - XX : LogFile = vmOutput . log DeoptStats
* @ run main / othervm DeoptStats compilation . log vmOutput . log
*/
import java.nio.file.Paths;
import jdk.test.lib.process.OutputAnalyzer;
public class DeoptStats {
static class Value {
int i;
public Value(int i) { this .i = i; }
}
static int f(Value v) {
try {
return v.i;
} catch (NullPointerException npe) {
return -1 ;
}
}
public static void verify(String[] logFiles) throws Exception {
for (String logFile : logFiles) {
OutputAnalyzer oa = new OutputAnalyzer(Paths.get(logFile));
oa.shouldMatchByLine("<statistics type='deoptimization'>" , // Start from this line
"</statistics>" , // Match until this line
"(Deoptimization traps recorded:)|( .+)" );
}
}
public static void main(String[] args) throws Exception {
if (args.length > 0 ) {
verify(args);
} else {
Value zero = new Value(0 );
for (int i = 0 ; i < 20 _000 ; i++) {
f(zero);
}
// trigger null_check
f(null );
}
}
}
Messung V0.5 in Prozent C=94 H=75 G=84
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