我们正在运行grails，我们注意到需要多次完整的垃圾回收来清除permgen空间。2013-06-06T16:11:27.016+0000:32582.145:[FullGC32582.145:[CMS2013-06-06T16:11:45.404+0000:32600.532:[CMS-concurrent-mark:21.403/86.063secs][Times:user=48.44sys=0.63,real=86.07secs](concurrentmodefailure):7585874K->7290466K(10145024K),57.9230770secs]786609