55G total heap
15G old
40G young
survival ratio 2: 20G + 10G + 10G
time in young gc: 65.84 secs + 1 cms

java -Xms55g -Xmx55g 
-verbose:gc 
-XX:+PrintGCDetails 
-XX:+PrintGCTimeStamps 
-Xloggc:gc.txt 
-XX:+PrintTenuringDistribution 
-XX:+UseConcMarkSweepGC 
-Xmn40g 
-XX:SurvivorRatio=2 
-XX:+DoEscapeAnalysis


115.702: [Full GC 115.702: [CMS: 0K->608101K(15728640K), 3.3297750 secs] 11744188K->608101K(47185920K), [CMS Perm : 21247K->21201K(21248K)], 3.3300640 secs] [Times: user=2.60 sys=0.74, real=3.33 secs] 
208.541: [Full GC 208.541: [CMS: 608101K->1304459K(15728640K), 6.4490600 secs] 11824089K->1304459K(47185920K), [CMS Perm : 35272K->35232K(35340K)], 6.4493710 secs] [Times: user=5.86 sys=0.58, real=6.45 secs] 
334.301: [GC 334.301: [ParNew
Desired survivor size 5368709120 bytes, new threshold 15 (max 15)
- age   1: 1477606832 bytes, 1477606832 total
: 20971520K->1449679K(31457280K), 1.2178370 secs] 22275979K->2754138K(47185920K), 1.2179410 secs] [Times: user=6.38 sys=2.32, real=1.22 secs] 
346.906: [GC 346.906: [ParNew
Desired survivor size 5368709120 bytes, new threshold 15 (max 15)
- age   1: 2149088552 bytes, 2149088552 total
- age   2: 1191988648 bytes, 3341077200 total
: 22421199K->3682928K(31457280K), 2.2213970 secs] 23725658K->4987387K(47185920K), 2.2215170 secs] [Times: user=11.68 sys=6.02, real=2.22 secs] 
362.104: [GC 362.104: [ParNew
Desired survivor size 5368709120 bytes, new threshold 15 (max 15)
- age   1: 2355313576 bytes, 2355313576 total
- age   2: 1646288640 bytes, 4001602216 total
- age   3: 1191952000 bytes, 5193554216 total
: 24654448K->6119710K(31457280K), 3.1129930 secs] 25958907K->7424170K(47185920K), 3.1131360 secs] [Times: user=18.44 sys=6.22, real=3.12 secs] 
379.000: [GC 379.000: [ParNew
Desired survivor size 5368709120 bytes, new threshold 3 (max 15)
- age   1: 2044132616 bytes, 2044132616 total
- age   2: 2074778688 bytes, 4118911304 total
- age   3: 1644248328 bytes, 5763159632 total
- age   4: 1191894528 bytes, 6955054160 total
: 27091230K->8967571K(31457280K), 6.3449690 secs] 28395690K->10272031K(47185920K), 6.3450890 secs] [Times: user=35.10 sys=15.38, real=6.34 secs] 
570.041: [GC 570.041: [ParNew
Desired survivor size 5368709120 bytes, new threshold 3 (max 15)
- age   1: 1569467152 bytes, 1569467152 total
- age   2: 2012152488 bytes, 3581619640 total
- age   3: 2074228864 bytes, 5655848504 total
: 29939091K->8545609K(31457280K), 23.2989940 secs] 31243551K->13025665K(47185920K), 23.2991400 secs] [Times: user=53.93 sys=25.45, real=23.30 secs] 
754.979: [GC 754.979: [ParNew
Desired survivor size 5368709120 bytes, new threshold 3 (max 15)
- age   1: 2365487576 bytes, 2365487576 total
- age   2: 1218890104 bytes, 3584377680 total
- age   3: 2012140168 bytes, 5596517848 total
: 29517129K->9256348K(31457280K), 16.0064150 secs] 33997185K->15768794K(47185920K), 16.0065640 secs] [Times: user=41.36 sys=18.62, real=16.00 secs] 
848.951: [GC 848.951: [ParNew
Desired survivor size 5368709120 bytes, new threshold 15 (max 15)
- age   1:  141693704 bytes,  141693704 total
- age   2: 2335589816 bytes, 2477283520 total
- age   3: 1218866952 bytes, 3696150472 total
: 30224810K->4776464K(31457280K), 13.6404450 secs] 36737256K->13252534K(47185920K), 13.6405880 secs] [Times: user=26.34 sys=11.69, real=13.64 secs] 
862.594: [GC [1 CMS-initial-mark: 8476070K(15728640K)] 13276690K(47185920K), 1.8986060 secs] [Times: user=1.89 sys=0.00, real=1.90 secs] 
864.493: [CMS-concurrent-mark-start]
875.492: [CMS-concurrent-mark: 10.775/10.999 secs] [Times: user=28.74 sys=0.13, real=11.00 secs] 
875.492: [CMS-concurrent-preclean-start]
875.573: [CMS-concurrent-preclean: 0.076/0.081 secs] [Times: user=0.16 sys=0.00, real=0.08 secs] 
875.573: [CMS-concurrent-abortable-preclean-start]
 CMS: abort preclean due to time 881.251: [CMS-concurrent-abortable-preclean: 5.669/5.678 secs] [Times: user=10.50 sys=0.11, real=5.68 secs] 
881.251: [GC[YG occupancy: 11894156 K (31457280 K)]881.251: [Rescan (parallel) , 4.6538900 secs]885.905: [weak refs processing, 0.0001760 secs] [1 CMS-remark: 8476070K(15728640K)] 20370226K(47185920K), 4.6542420 secs] [Times: user=7.60 sys=0.02, real=4.66 secs] 
885.906: [CMS-concurrent-sweep-start]
892.214: [CMS-concurrent-sweep: 6.302/6.308 secs] [Times: user=9.78 sys=0.05, real=6.30 secs] 
892.214: [CMS-concurrent-reset-start]
892.316: [CMS-concurrent-reset: 0.101/0.102 secs] [Times: user=0.21 sys=0.00, real=0.11 secs] 
