Examples with MemoryMeter org.github.jamm.MemoryMeter used on opensource projects

Example 1 with MemoryMeter

use of org.github.jamm.MemoryMeter in project nextprot-api by calipho-sib.

the class ExperimentalContextDictAnalyserTask method execute.

@Override
protected void execute() throws IOException {
    ExperimentalContextDictionaryService bean = getBean(ExperimentalContextDictionaryService.class);
    Map<Long, ExperimentalContext> dict = bean.getAllExperimentalContexts();
    /* If instrumentation is available, use it, otherwise guess the size using sun.misc.Unsafe; if that is unavailable,
         * guess using predefined specifications -> setting jamm as -javaagent is now optional */
    MemoryMeter memMeter = new MemoryMeter().withGuessing(MemoryMeter.Guess.FALLBACK_BEST);
    if (getCommandLineParser().isDebugMode()) {
        memMeter = memMeter.enableDebug();
    }
    long shallowMemory = memMeter.measure(dict);
    long deepMemory = memMeter.measureDeep(dict);
    long childrenCount = memMeter.countChildren(dict);
    StringBuilder sb = new StringBuilder("experimental-context-dictionary memory allocation: ");
    sb.append("shallow=").append(shallowMemory).append("B").append(", deep=").append((int) Math.ceil(deepMemory / 1024.)).append("KB").append(", children#=").append(childrenCount).append("\n");
    System.out.printf(sb.toString());
}