Files
SCM-Manager/support/scm-script-plugin/analyze-ehcache.groovy
2013-03-04 19:37:40 +01:00

86 lines
3.4 KiB
Groovy

/**
* Copyright (c) 2010, Sebastian Sdorra
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of SCM-Manager; nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* http://bitbucket.org/sdorra/scm-manager
*
*/
// see https://bitbucket.org/sdorra/scm-manager/issue/345/ehcache-eating-up-all-memory
def humanReadable(def bytes) {
if (bytes < 1024) return bytes + " B";
int exp = (int) (Math.log(bytes) / Math.log(1024));
String pre = "KMGTPE".charAt(exp-1);
return String.format("%.1f %sB", bytes / Math.pow(1024, exp), pre);
}
def sizeOf(Serializable object){
ByteArrayOutputStream baos = new ByteArrayOutputStream();
ObjectOutputStream oos = new ObjectOutputStream(baos);
oos.writeObject(object);
oos.close();
return baos.size();
}
Runtime runtime = Runtime.getRuntime();
def maxMemory = runtime.maxMemory();
def allocatedMemory = runtime.totalMemory();
def freeMemory = runtime.freeMemory();
println "memory:"
println " - max : " + humanReadable(maxMemory);
println " - allocated : " + humanReadable(allocatedMemory);
println " - free : " + humanReadable(freeMemory);
println "";
println "";
def cacheManager = injector.getInstance(sonia.scm.cache.CacheManager.class).cacheManager;
def totalCMax = 0;
def cacheNames = cacheManager.getCacheNames();
for ( def cacheName : cacheNames ){
def cache = cacheManager.getCache(cacheName);
def totalMemory = cache.calculateInMemorySize();
def average = cache.getSize() > 0 ? Math.round( totalMemory / cache.getSize() ) : 0;
def max = cache.getCacheConfiguration().getMaxEntriesLocalHeap();
def maxSize = average * max;
totalCMax += maxSize;
println cache.name + ":";
println " - size : " + cache.getSize();
println " - maxsize : " + max;
println " - average : " + humanReadable( average );
println " - current : " + humanReadable( totalMemory );
println " - cmax : " + humanReadable( maxSize );
}
println "";
println "";
println "Total CMax: " + humanReadable(totalCMax);