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(chore) Cleanup print memory usage

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Andreas Penski (init) 2019-02-12 12:03:57 +01:00
parent 406d82c15c
commit dfefb9d6d7
1 changed files with 12 additions and 8 deletions
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20
src/main/java/de/kosit/validationtool/cmd/PrintMemoryStats.java
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@ -24,25 +24,29 @@ import java.text.NumberFormat;
import lombok.extern.slf4j.Slf4j; import lombok.extern.slf4j.Slf4j;
/** /**
*
* Prints some memory usage information for debugging purposes.
*
* @author Andreas Penski * @author Andreas Penski
*/ */
@Slf4j @Slf4j
public class PrintMemoryStats implements de.kosit.validationtool.impl.tasks.CheckAction { public class PrintMemoryStats implements de.kosit.validationtool.impl.tasks.CheckAction {
private static final int BYTES_PER_K = 1024;
@Override @Override
public void check(final Bag results) { public void check(final Bag results) {
Runtime.getRuntime().gc();
final Runtime runtime = Runtime.getRuntime(); final Runtime runtime = Runtime.getRuntime();
StringBuilder sb = new StringBuilder();
long maxMemory = runtime.maxMemory(); long maxMemory = runtime.maxMemory();
long allocatedMemory = runtime.totalMemory(); long allocatedMemory = runtime.totalMemory();
long freeMemory = runtime.freeMemory(); long freeMemory = runtime.freeMemory();
NumberFormat format = NumberFormat.getInstance();
sb.append("free memory: " + format.format(freeMemory / 1024)); NumberFormat format = NumberFormat.getInstance();
sb.append("MB allocated memory: " + format.format(allocatedMemory / 1024)); final String freeStr = format.format(freeMemory / BYTES_PER_K);
sb.append("MB max memory: " + format.format(maxMemory / 1024)); final String allocStr = format.format(allocatedMemory / BYTES_PER_K);
sb.append("MB total free memory: " + format.format((freeMemory + (maxMemory - allocatedMemory)) / 1024) + "MB"); final String maxStr = format.format(maxMemory / BYTES_PER_K);
log.info("{}", sb.toString()); final String totalFreeStr = format.format((freeMemory + (maxMemory - allocatedMemory)) / BYTES_PER_K);
log.info("free memory: {}MB; allocated memory: {}MB", freeStr, allocStr);
log.info("max memory: {}MB; total free memory: {}MB", maxStr, totalFreeStr);
} }
} }