52G total heap
20G old
32G young
survival ratio 2: 16G + 8G + 8G
time in young gc: 50.64secs

java -Xms52g -Xmx52g 
-verbose:gc 
-XX:+PrintGCDetails 
-XX:+PrintGCTimeStamps 
-Xloggc:gc.txt 
-XX:+PrintTenuringDistribution 
-XX:+UseConcMarkSweepGC 
-Xmn32g 
-XX:SurvivorRatio=2 
-XX:+DoEscapeAnalysis 


85.921: [Full GC 85.921: [CMS: 0K->607984K(20971520K), 3.3317710 secs] 10114572K->607984K(46137344K), [CMS Perm : 21247K->21204K(21248K)], 3.3320480 secs] [Times: user=2.51 sys=0.82, real=3.34 secs] 
217.551: [Full GC 217.551: [CMS: 607984K->1304475K(20971520K), 6.4906270 secs] 11012206K->1304475K(46137344K), [CMS Perm : 35278K->35242K(35344K)], 6.4909210 secs] [Times: user=5.87 sys=0.61, real=6.49 secs] 
517.311: [GC 517.311: [ParNew
Desired survivor size 4294967296 bytes, new threshold 15 (max 15)
- age   1: 1185120112 bytes, 1185120112 total
: 16777216K->1162230K(25165824K), 1.0242160 secs] 18081691K->2466706K(46137344K), 1.0243170 secs] [Times: user=4.82 sys=1.88, real=1.03 secs] 
527.240: [GC 527.240: [ParNew
Desired survivor size 4294967296 bytes, new threshold 15 (max 15)
- age   1: 1842542488 bytes, 1842542488 total
- age   2: 1006985304 bytes, 2849527792 total
: 17939446K->3251658K(25165824K), 1.9049390 secs] 19243922K->4556133K(46137344K), 1.9050690 secs] [Times: user=10.05 sys=5.18, real=1.91 secs] 
539.214: [GC 539.214: [ParNew
Desired survivor size 4294967296 bytes, new threshold 15 (max 15)
- age   1: 1810294464 bytes, 1810294464 total
- age   2: 1237810448 bytes, 3048104912 total
- age   3: 1006968488 bytes, 4055073400 total
: 20028874K->4580556K(25165824K), 2.4063850 secs] 21333349K->5885031K(46137344K), 2.4065040 secs] [Times: user=13.57 sys=5.61, real=2.40 secs] 
552.195: [GC 552.195: [ParNew
Desired survivor size 4294967296 bytes, new threshold 3 (max 15)
- age   1: 2044153840 bytes, 2044153840 total
- age   2: 1361585160 bytes, 3405739000 total
- age   3: 1225985032 bytes, 4631724032 total
- age   4: 1006965616 bytes, 5638689648 total
: 21357772K->7085131K(25165824K), 3.1830980 secs] 22662247K->8389607K(46137344K), 3.1832120 secs] [Times: user=19.87 sys=5.55, real=3.18 secs] 
565.310: [GC 565.310: [ParNew
Desired survivor size 4294967296 bytes, new threshold 3 (max 15)
- age   1: 1543683408 bytes, 1543683408 total
- age   2: 1962458408 bytes, 3506141816 total
- age   3: 1328772432 bytes, 4834914248 total
: 23862347K->6896309K(25165824K), 18.0067750 secs] 25166823K->10691592K(46137344K), 18.0069170 secs] [Times: user=43.21 sys=19.17, real=18.01 secs] 
762.434: [GC 762.434: [ParNew
Desired survivor size 4294967296 bytes, new threshold 3 (max 15)
- age   1: 1232568016 bytes, 1232568016 total
- age   2: 1541435456 bytes, 2774003472 total
- age   3: 1961631464 bytes, 4735634936 total
: 23673525K->7192654K(25165824K), 9.9104980 secs] 27468808K->12284955K(46137344K), 9.9106430 secs] [Times: user=29.68 sys=9.70, real=9.91 secs] 
831.188: [GC 831.189: [ParNew
Desired survivor size 4294967296 bytes, new threshold 3 (max 15)
- age   1: 2332000832 bytes, 2332000832 total
- age   2:  783448256 bytes, 3115449088 total
- age   3: 1541430888 bytes, 4656879976 total
: 23969870K->7584218K(25165824K), 14.3948520 secs] 29062171K->14612147K(46137344K), 14.3950390 secs] [Times: user=35.31 sys=15.28, real=14.40 secs] 
974.388: [GC 974.388: [ParNew
Desired survivor size 4294967296 bytes, new threshold 15 (max 15)
- age   1:  623100176 bytes,  623100176 total
- age   2: 2100225952 bytes, 2723326128 total
- age   3:  783422608 bytes, 3506748736 total
: 24361434K->5744626K(25165824K), 8.2532290 secs] 31389363K->14278770K(46137344K), 8.2533760 secs] [Times: user=10.56 sys=2.10, real=8.25 secs] 
1055.182: [GC 1055.183: [ParNew
Desired survivor size 4294967296 bytes, new threshold 15 (max 15)
- age   1:  128473600 bytes,  128473600 total
- age   2:  580365368 bytes,  708838968 total
- age   3: 2100214304 bytes, 2809053272 total
- age   4:  781021400 bytes, 3590074672 total
: 22521842K->4004653K(25165824K), 1.4622140 secs] 31055986K->12538797K(46137344K), 1.4623570 secs]