Long pause in ParNew
Pablo Medina
pablomedina85 at gmail.com
Mon Jul 1 07:24:41 PDT 2013
Hi everyone,
I'm having an issue with an application during its first requests
processing after startup. The app caches a snapshot of data from other
system (aprox 250mb object graph). There's long ParNew pause (7 seconds)
when the first requests arrives resulting in the snapshot data being
promoted to the CMS old gen. The requests are just http get to a simple
service returning the app version. After that initial pause the app
continue working without any considerable pause. It's just a behavior in
the first requests.
I thought the problem was the time to copy that data from the young to the
old generation but then I changed the SurvivorRatio from 8 to 4 and set
MaxTenuringThreshold in 4. The pause was reduced from 7sec to 1sec. What
can be the cause of that initial long pause? Why changing Survivor sizes
reduced that pause?
VM settings:
-Xms5g -Xmx10g -XX:PermSize=256m -XX:+CMSClassUnloadingEnabled -verbose:gc
-XX:+PrintGCDetails -XX:+PrintGCDateStamps -Xloggc:./logs/gc.log
-XX:NewRatio=1 -XX:+UseConcMarkSweepGC -XX:+DisableExplicitGC
-XX:CMSMaxAbortablePrecleanTime=50000 -XX:CMSInitiatingOccupancyFraction=40
-XX:+UseCMSInitiatingOccupancyOnly -XX:+CMSScavengeBeforeRemark
-XX:+PrintHeapAtGC -XX:+PrintTenuringDistribution
Long pause with SurvivorRatio=8
{Heap before GC invocations=0 (full 0):
par new generation total 2359296K, used 2097152K [0x0000000570000000,
0x0000000610000000, 0x00000006b0000000)
eden space 2097152K, 100% used [0x0000000570000000, 0x00000005f0000000,
0x00000005f0000000)
from space 262144K, 0% used [0x00000005f0000000, 0x00000005f0000000,
0x0000000600000000)
to space 262144K, 0% used [0x0000000600000000, 0x0000000600000000,
0x0000000610000000)
concurrent mark-sweep generation total 2621440K, used 0K
[0x00000006b0000000, 0x0000000750000000, 0x00000007f0000000)
concurrent-mark-sweep perm gen total 262144K, used 44430K
[0x00000007f0000000, 0x0000000800000000, 0x0000000800000000)
2013-07-01T09:21:39.519-0400: 25.573: [GC 25.574: [ParNew
Desired survivor size 134217728 bytes, new threshold 4 (max 4)
- age 1: 20597808 bytes, 20597808 total
: 2097152K->20245K(2359296K), 0.0504000 secs] 2097152K->20245K(4980736K),
0.0515880 secs] [Times: user=0.32 sys=0.04, real=0.05 secs]
Heap after GC invocations=1 (full 0):
par new generation total 2359296K, used 20245K [0x0000000570000000,
0x0000000610000000, 0x00000006b0000000)
eden space 2097152K, 0% used [0x0000000570000000, 0x0000000570000000,
0x00000005f0000000)
from space 262144K, 7% used [0x0000000600000000, 0x00000006013c56f0,
0x0000000610000000)
to space 262144K, 0% used [0x00000005f0000000, 0x00000005f0000000,
0x0000000600000000)
concurrent mark-sweep generation total 2621440K, used 0K
[0x00000006b0000000, 0x0000000750000000, 0x00000007f0000000)
concurrent-mark-sweep perm gen total 262144K, used 44430K
[0x00000007f0000000, 0x0000000800000000, 0x0000000800000000)
}
{Heap before GC invocations=1 (full 0):
par new generation total 2359296K, used 2117397K [0x0000000570000000,
0x0000000610000000, 0x00000006b0000000)
eden space 2097152K, 100% used [0x0000000570000000, 0x00000005f0000000,
0x00000005f0000000)
from space 262144K, 7% used [0x0000000600000000, 0x00000006013c56f0,
0x0000000610000000)
to space 262144K, 0% used [0x00000005f0000000, 0x00000005f0000000,
0x0000000600000000)
concurrent mark-sweep generation total 2621440K, used 0K
[0x00000006b0000000, 0x0000000750000000, 0x00000007f0000000)
concurrent-mark-sweep perm gen total 262144K, used 67340K
[0x00000007f0000000, 0x0000000800000000, 0x0000000800000000)
2013-07-01T09:22:40.825-0400: 86.879: [GC 86.880: [ParNew
Desired survivor size 134217728 bytes, new threshold 1 (max 4)
- age 1: 167095240 bytes, 167095240 total
- age 2: 19783760 bytes, 186879000 total
: 2117397K->189160K(2359296K), 0.2220310 secs] 2117397K->189160K(4980736K),
0.2229800 secs] [Times: user=1.33 sys=0.24, real=0.23 secs]
Heap after GC invocations=2 (full 0):
par new generation total 2359296K, used 189160K [0x0000000570000000,
0x0000000610000000, 0x00000006b0000000)
eden space 2097152K, 0% used [0x0000000570000000, 0x0000000570000000,
0x00000005f0000000)
from space 262144K, 72% used [0x00000005f0000000, 0x00000005fb8ba0e8,
0x0000000600000000)
to space 262144K, 0% used [0x0000000600000000, 0x0000000600000000,
0x0000000610000000)
concurrent mark-sweep generation total 2621440K, used 0K
[0x00000006b0000000, 0x0000000750000000, 0x00000007f0000000)
concurrent-mark-sweep perm gen total 262144K, used 67340K
[0x00000007f0000000, 0x0000000800000000, 0x0000000800000000)
}
{Heap before GC invocations=2 (full 0):
par new generation total 2359296K, used 2286312K [0x0000000570000000,
0x0000000610000000, 0x00000006b0000000)
eden space 2097152K, 100% used [0x0000000570000000, 0x00000005f0000000,
0x00000005f0000000)
from space 262144K, 72% used [0x00000005f0000000, 0x00000005fb8ba0e8,
0x0000000600000000)
to space 262144K, 0% used [0x0000000600000000, 0x0000000600000000,
0x0000000610000000)
concurrent mark-sweep generation total 2621440K, used 0K
[0x00000006b0000000, 0x0000000750000000, 0x00000007f0000000)
concurrent-mark-sweep perm gen total 262144K, used 68204K
[0x00000007f0000000, 0x0000000800000000, 0x0000000800000000)
2013-07-01T09:22:49.466-0400: 95.520: [GC 95.521: [ParNew
Desired survivor size 134217728 bytes, new threshold 4 (max 4)
- age 1: 6433784 bytes, 6433784 total
: 2286312K->144374K(2359296K), 7.9553060 secs] 2286312K->358700K(4980736K),
7.9563770 secs] [Times: user=16.44 sys=4.36, real=7.95 secs]
Heap after GC invocations=3 (full 0):
par new generation total 2359296K, used 144374K [0x0000000570000000,
0x0000000610000000, 0x00000006b0000000)
eden space 2097152K, 0% used [0x0000000570000000, 0x0000000570000000,
0x00000005f0000000)
from space 262144K, 55% used [0x0000000600000000, 0x0000000608cfd890,
0x0000000610000000)
to space 262144K, 0% used [0x00000005f0000000, 0x00000005f0000000,
0x0000000600000000)
concurrent mark-sweep generation total 2621440K, used 214326K
[0x00000006b0000000, 0x0000000750000000, 0x00000007f0000000)
concurrent-mark-sweep perm gen total 262144K, used 68204K
[0x00000007f0000000, 0x0000000800000000, 0x0000000800000000)
}
{Heap before GC invocations=3 (full 0):
par new generation total 2359296K, used 2241526K [0x0000000570000000,
0x0000000610000000, 0x00000006b0000000)
eden space 2097152K, 100% used [0x0000000570000000, 0x00000005f0000000,
0x00000005f0000000)
from space 262144K, 55% used [0x0000000600000000, 0x0000000608cfd890,
0x0000000610000000)
to space 262144K, 0% used [0x00000005f0000000, 0x00000005f0000000,
0x0000000600000000)
concurrent mark-sweep generation total 2621440K, used 214326K
[0x00000006b0000000, 0x0000000750000000, 0x00000007f0000000)
concurrent-mark-sweep perm gen total 262144K, used 68218K
[0x00000007f0000000, 0x0000000800000000, 0x0000000800000000)
2013-07-01T09:23:05.613-0400: 111.668: [GC 111.669: [ParNew
Desired survivor size 134217728 bytes, new threshold 4 (max 4)
- age 1: 5170632 bytes, 5170632 total
- age 2: 303000 bytes, 5473632 total
: 2241526K->39341K(2359296K), 0.0812890 secs] 2455852K->253667K(4980736K),
0.0827240 secs] [Times: user=0.22 sys=0.02, real=0.09 secs]
Heap after GC invocations=4 (full 0):
par new generation total 2359296K, used 39341K [0x0000000570000000,
0x0000000610000000, 0x00000006b0000000)
eden space 2097152K, 0% used [0x0000000570000000, 0x0000000570000000,
0x00000005f0000000)
from space 262144K, 15% used [0x00000005f0000000, 0x00000005f266b400,
0x0000000600000000)
to space 262144K, 0% used [0x0000000600000000, 0x0000000600000000,
0x0000000610000000)
concurrent mark-sweep generation total 2621440K, used 214326K
[0x00000006b0000000, 0x0000000750000000, 0x00000007f0000000)
concurrent-mark-sweep perm gen total 262144K, used 68218K
[0x00000007f0000000, 0x0000000800000000, 0x0000000800000000)
}
{Heap before GC invocations=4 (full 0):
par new generation total 2359296K, used 2136493K [0x0000000570000000,
0x0000000610000000, 0x00000006b0000000)
eden space 2097152K, 100% used [0x0000000570000000, 0x00000005f0000000,
0x00000005f0000000)
from space 262144K, 15% used [0x00000005f0000000, 0x00000005f266b400,
0x0000000600000000)
to space 262144K, 0% used [0x0000000600000000, 0x0000000600000000,
0x0000000610000000)
concurrent mark-sweep generation total 2621440K, used 214326K
[0x00000006b0000000, 0x0000000750000000, 0x00000007f0000000)
concurrent-mark-sweep perm gen total 262144K, used 68218K
[0x00000007f0000000, 0x0000000800000000, 0x0000000800000000)
2013-07-01T09:23:15.000-0400: 121.054: [GC 121.055: [ParNew
Desired survivor size 134217728 bytes, new threshold 4 (max 4)
- age 1: 5202616 bytes, 5202616 total
- age 2: 60536 bytes, 5263152 total
- age 3: 299128 bytes, 5562280 total
: 2136493K->13371K(2359296K), 0.1058500 secs] 2350819K->227697K(4980736K),
0.1074500 secs] [Times: user=0.23 sys=0.02, real=0.11 secs]
Heap after GC invocations=5 (full 0):
par new generation total 2359296K, used 13371K [0x0000000570000000,
0x0000000610000000, 0x00000006b0000000)
eden space 2097152K, 0% used [0x0000000570000000, 0x0000000570000000,
0x00000005f0000000)
from space 262144K, 5% used [0x0000000600000000, 0x0000000600d0eca0,
0x0000000610000000)
to space 262144K, 0% used [0x00000005f0000000, 0x00000005f0000000,
0x0000000600000000)
concurrent mark-sweep generation total 2621440K, used 214326K
[0x00000006b0000000, 0x0000000750000000, 0x00000007f0000000)
concurrent-mark-sweep perm gen total 262144K, used 68218K
[0x00000007f0000000, 0x0000000800000000, 0x0000000800000000)
}
***********************************************************************************************
Smaller pause with SurvivorRatio=4 and MaxTenuringThreshold=4:
{Heap before GC invocations=0 (full 0):
par new generation total 2184576K, used 1747712K [0x0000000570000000,
0x0000000610000000, 0x00000006b0000000)
eden space 1747712K, 100% used [0x0000000570000000, 0x00000005daac0000,
0x00000005daac0000)
from space 436864K, 0% used [0x00000005daac0000, 0x00000005daac0000,
0x00000005f5560000)
to space 436864K, 0% used [0x00000005f5560000, 0x00000005f5560000,
0x0000000610000000)
concurrent mark-sweep generation total 2621440K, used 0K
[0x00000006b0000000, 0x0000000750000000, 0x00000007f0000000)
concurrent-mark-sweep perm gen total 262144K, used 44404K
[0x00000007f0000000, 0x0000000800000000, 0x0000000800000000)
2013-06-28T17:03:12.964-0400: 26.763: [GC 26.764: [ParNew
Desired survivor size 223674368 bytes, new threshold 4 (max 4)
- age 1: 19972200 bytes, 19972200 total
: 1747712K->19642K(2184576K), 0.0918290 secs] 1747712K->19642K(4806016K),
0.0933140 secs] [Times: user=0.63 sys=0.05, real=0.09 secs]
Heap after GC invocations=1 (full 0):
par new generation total 2184576K, used 19642K [0x0000000570000000,
0x0000000610000000, 0x00000006b0000000)
eden space 1747712K, 0% used [0x0000000570000000, 0x0000000570000000,
0x00000005daac0000)
from space 436864K, 4% used [0x00000005f5560000, 0x00000005f688ea88,
0x0000000610000000)
to space 436864K, 0% used [0x00000005daac0000, 0x00000005daac0000,
0x00000005f5560000)
concurrent mark-sweep generation total 2621440K, used 0K
[0x00000006b0000000, 0x0000000750000000, 0x00000007f0000000)
concurrent-mark-sweep perm gen total 262144K, used 44404K
[0x00000007f0000000, 0x0000000800000000, 0x0000000800000000)
}
{Heap before GC invocations=1 (full 0):
par new generation total 2184576K, used 1767354K [0x0000000570000000,
0x0000000610000000, 0x00000006b0000000)
eden space 1747712K, 100% used [0x0000000570000000, 0x00000005daac0000,
0x00000005daac0000)
from space 436864K, 4% used [0x00000005f5560000, 0x00000005f688ea88,
0x0000000610000000)
to space 436864K, 0% used [0x00000005daac0000, 0x00000005daac0000,
0x00000005f5560000)
concurrent mark-sweep generation total 2621440K, used 0K
[0x00000006b0000000, 0x0000000750000000, 0x00000007f0000000)
concurrent-mark-sweep perm gen total 262144K, used 65607K
[0x00000007f0000000, 0x0000000800000000, 0x0000000800000000)
2013-06-28T17:03:54.194-0400: 67.994: [GC 67.994: [ParNew
Desired survivor size 223674368 bytes, new threshold 4 (max 4)
- age 1: 167266560 bytes, 167266560 total
- age 2: 19365872 bytes, 186632432 total
: 1767354K->190959K(2184576K), 0.2577580 secs] 1767354K->190959K(4806016K),
0.2586770 secs] [Times: user=1.74 sys=0.23, real=0.26 secs]
Heap after GC invocations=2 (full 0):
par new generation total 2184576K, used 190959K [0x0000000570000000,
0x0000000610000000, 0x00000006b0000000)
eden space 1747712K, 0% used [0x0000000570000000, 0x0000000570000000,
0x00000005daac0000)
from space 436864K, 43% used [0x00000005daac0000, 0x00000005e653bd50,
0x00000005f5560000)
to space 436864K, 0% used [0x00000005f5560000, 0x00000005f5560000,
0x0000000610000000)
concurrent mark-sweep generation total 2621440K, used 0K
[0x00000006b0000000, 0x0000000750000000, 0x00000007f0000000)
concurrent-mark-sweep perm gen total 262144K, used 65607K
[0x00000007f0000000, 0x0000000800000000, 0x0000000800000000)
}
{Heap before GC invocations=2 (full 0):
par new generation total 2184576K, used 1938671K [0x0000000570000000,
0x0000000610000000, 0x00000006b0000000)
eden space 1747712K, 100% used [0x0000000570000000, 0x00000005daac0000,
0x00000005daac0000)
from space 436864K, 43% used [0x00000005daac0000, 0x00000005e653bd50,
0x00000005f5560000)
to space 436864K, 0% used [0x00000005f5560000, 0x00000005f5560000,
0x0000000610000000)
concurrent mark-sweep generation total 2621440K, used 0K
[0x00000006b0000000, 0x0000000750000000, 0x00000007f0000000)
concurrent-mark-sweep perm gen total 262144K, used 67744K
[0x00000007f0000000, 0x0000000800000000, 0x0000000800000000)
2013-06-28T17:04:01.809-0400: 75.609: [GC 75.610: [ParNew
Desired survivor size 223674368 bytes, new threshold 4 (max 4)
- age 1: 4190576 bytes, 4190576 total
- age 2: 166507544 bytes, 170698120 total
- age 3: 19179872 bytes, 189877992 total
: 1938671K->265597K(2184576K), 0.2270780 secs] 1938671K->265597K(4806016K),
0.2283620 secs] [Times: user=1.33 sys=0.20, real=0.23 secs]
Heap after GC invocations=3 (full 0):
par new generation total 2184576K, used 265597K [0x0000000570000000,
0x0000000610000000, 0x00000006b0000000)
eden space 1747712K, 0% used [0x0000000570000000, 0x0000000570000000,
0x00000005daac0000)
from space 436864K, 60% used [0x00000005f5560000, 0x00000006058bf520,
0x0000000610000000)
to space 436864K, 0% used [0x00000005daac0000, 0x00000005daac0000,
0x00000005f5560000)
concurrent mark-sweep generation total 2621440K, used 0K
[0x00000006b0000000, 0x0000000750000000, 0x00000007f0000000)
concurrent-mark-sweep perm gen total 262144K, used 67744K
[0x00000007f0000000, 0x0000000800000000, 0x0000000800000000)
}
{Heap before GC invocations=3 (full 0):
par new generation total 2184576K, used 2013309K [0x0000000570000000,
0x0000000610000000, 0x00000006b0000000)
eden space 1747712K, 100% used [0x0000000570000000, 0x00000005daac0000,
0x00000005daac0000)
from space 436864K, 60% used [0x00000005f5560000, 0x00000006058bf520,
0x0000000610000000)
to space 436864K, 0% used [0x00000005daac0000, 0x00000005daac0000,
0x00000005f5560000)
concurrent mark-sweep generation total 2621440K, used 0K
[0x00000006b0000000, 0x0000000750000000, 0x00000007f0000000)
concurrent-mark-sweep perm gen total 262144K, used 67756K
[0x00000007f0000000, 0x0000000800000000, 0x0000000800000000)
2013-06-28T17:04:07.715-0400: 81.515: [GC 81.515: [ParNew
Desired survivor size 223674368 bytes, new threshold 4 (max 4)
- age 1: 4218520 bytes, 4218520 total
- age 2: 236296 bytes, 4454816 total
- age 3: 166455152 bytes, 170909968 total
- age 4: 19183672 bytes, 190093640 total
: 2013309K->282274K(2184576K), 0.2725250 secs] 2013309K->282274K(4806016K),
0.2739020 secs] [Times: user=1.86 sys=0.02, real=0.28 secs]
Heap after GC invocations=4 (full 0):
par new generation total 2184576K, used 282274K [0x0000000570000000,
0x0000000610000000, 0x00000006b0000000)
eden space 1747712K, 0% used [0x0000000570000000, 0x0000000570000000,
0x00000005daac0000)
from space 436864K, 64% used [0x00000005daac0000, 0x00000005ebe68af0,
0x00000005f5560000)
to space 436864K, 0% used [0x00000005f5560000, 0x00000005f5560000,
0x0000000610000000)
concurrent mark-sweep generation total 2621440K, used 0K
[0x00000006b0000000, 0x0000000750000000, 0x00000007f0000000)
concurrent-mark-sweep perm gen total 262144K, used 67756K
[0x00000007f0000000, 0x0000000800000000, 0x0000000800000000)
}
{Heap before GC invocations=4 (full 0):
par new generation total 2184576K, used 2029986K [0x0000000570000000,
0x0000000610000000, 0x00000006b0000000)
eden space 1747712K, 100% used [0x0000000570000000, 0x00000005daac0000,
0x00000005daac0000)
from space 436864K, 64% used [0x00000005daac0000, 0x00000005ebe68af0,
0x00000005f5560000)
to space 436864K, 0% used [0x00000005f5560000, 0x00000005f5560000,
0x0000000610000000)
concurrent mark-sweep generation total 2621440K, used 0K
[0x00000006b0000000, 0x0000000750000000, 0x00000007f0000000)
concurrent-mark-sweep perm gen total 262144K, used 67757K
[0x00000007f0000000, 0x0000000800000000, 0x0000000800000000)
2013-06-28T17:04:14.294-0400: 88.093: [GC 88.094: [ParNew
Desired survivor size 223674368 bytes, new threshold 4 (max 4)
- age 1: 4285464 bytes, 4285464 total
- age 2: 3416 bytes, 4288880 total
- age 3: 233240 bytes, 4522120 total
- age 4: 165975312 bytes, 170497432 total
: 2029986K->250282K(2184576K), 0.6865350 secs] 2029986K->271078K(4806016K),
0.6878100 secs] [Times: user=2.98 sys=0.31, real=0.69 secs]
Heap after GC invocations=5 (full 0):
par new generation total 2184576K, used 250282K [0x0000000570000000,
0x0000000610000000, 0x00000006b0000000)
eden space 1747712K, 0% used [0x0000000570000000, 0x0000000570000000,
0x00000005daac0000)
from space 436864K, 57% used [0x00000005f5560000, 0x00000006049ca9c8,
0x0000000610000000)
to space 436864K, 0% used [0x00000005daac0000, 0x00000005daac0000,
0x00000005f5560000)
concurrent mark-sweep generation total 2621440K, used 20796K
[0x00000006b0000000, 0x0000000750000000, 0x00000007f0000000)
concurrent-mark-sweep perm gen total 262144K, used 67757K
[0x00000007f0000000, 0x0000000800000000, 0x0000000800000000)
}
{Heap before GC invocations=5 (full 0):
par new generation total 2184576K, used 1997994K [0x0000000570000000,
0x0000000610000000, 0x00000006b0000000)
eden space 1747712K, 100% used [0x0000000570000000, 0x00000005daac0000,
0x00000005daac0000)
from space 436864K, 57% used [0x00000005f5560000, 0x00000006049ca9c8,
0x0000000610000000)
to space 436864K, 0% used [0x00000005daac0000, 0x00000005daac0000,
0x00000005f5560000)
concurrent mark-sweep generation total 2621440K, used 20796K
[0x00000006b0000000, 0x0000000750000000, 0x00000007f0000000)
concurrent-mark-sweep perm gen total 262144K, used 67860K
[0x00000007f0000000, 0x0000000800000000, 0x0000000800000000)
2013-06-28T17:04:21.955-0400: 95.754: [GC 95.755: [ParNew
Desired survivor size 223674368 bytes, new threshold 4 (max 4)
- age 1: 5787536 bytes, 5787536 total
- age 2: 16872 bytes, 5804408 total
- age 3: 912 bytes, 5805320 total
- age 4: 226032 bytes, 6031352 total
: 1997994K->171935K(2184576K), 1.1988250 secs] 2018790K->384060K(4806016K),
1.2001570 secs] [Times: user=4.23 sys=0.76, real=1.21 secs]
Heap after GC invocations=6 (full 0):
par new generation total 2184576K, used 171935K [0x0000000570000000,
0x0000000610000000, 0x00000006b0000000)
eden space 1747712K, 0% used [0x0000000570000000, 0x0000000570000000,
0x00000005daac0000)
from space 436864K, 39% used [0x00000005daac0000, 0x00000005e52a7e30,
0x00000005f5560000)
to space 436864K, 0% used [0x00000005f5560000, 0x00000005f5560000,
0x0000000610000000)
concurrent mark-sweep generation total 2621440K, used 212125K
[0x00000006b0000000, 0x0000000750000000, 0x00000007f0000000)
concurrent-mark-sweep perm gen total 262144K, used 67860K
[0x00000007f0000000, 0x0000000800000000, 0x0000000800000000)
}
{Heap before GC invocations=6 (full 0):
par new generation total 2184576K, used 1919647K [0x0000000570000000,
0x0000000610000000, 0x00000006b0000000)
eden space 1747712K, 100% used [0x0000000570000000, 0x00000005daac0000,
0x00000005daac0000)
from space 436864K, 39% used [0x00000005daac0000, 0x00000005e52a7e30,
0x00000005f5560000)
to space 436864K, 0% used [0x00000005f5560000, 0x00000005f5560000,
0x0000000610000000)
concurrent mark-sweep generation total 2621440K, used 212125K
[0x00000006b0000000, 0x0000000750000000, 0x00000007f0000000)
concurrent-mark-sweep perm gen total 262144K, used 67860K
[0x00000007f0000000, 0x0000000800000000, 0x0000000800000000)
2013-06-28T17:04:31.284-0400: 105.083: [GC 105.084: [ParNew
Desired survivor size 223674368 bytes, new threshold 4 (max 4)
- age 1: 4404912 bytes, 4404912 total
- age 2: 122904 bytes, 4527816 total
- age 3: 14400 bytes, 4542216 total
- age 4: 912 bytes, 4543128 total
: 1919647K->45692K(2184576K), 0.0911320 secs] 2131772K->258035K(4806016K),
0.0927900 secs] [Times: user=0.22 sys=0.01, real=0.10 secs]
Heap after GC invocations=7 (full 0):
par new generation total 2184576K, used 45692K [0x0000000570000000,
0x0000000610000000, 0x00000006b0000000)
eden space 1747712K, 0% used [0x0000000570000000, 0x0000000570000000,
0x00000005daac0000)
from space 436864K, 10% used [0x00000005f5560000, 0x00000005f81ff2c0,
0x0000000610000000)
to space 436864K, 0% used [0x00000005daac0000, 0x00000005daac0000,
0x00000005f5560000)
concurrent mark-sweep generation total 2621440K, used 212342K
[0x00000006b0000000, 0x0000000750000000, 0x00000007f0000000)
concurrent-mark-sweep perm gen total 262144K, used 67860K
[0x00000007f0000000, 0x0000000800000000, 0x0000000800000000)
}
{Heap before GC invocations=7 (full 0):
par new generation total 2184576K, used 1793404K [0x0000000570000000,
0x0000000610000000, 0x00000006b0000000)
eden space 1747712K, 100% used [0x0000000570000000, 0x00000005daac0000,
0x00000005daac0000)
from space 436864K, 10% used [0x00000005f5560000, 0x00000005f81ff2c0,
0x0000000610000000)
to space 436864K, 0% used [0x00000005daac0000, 0x00000005daac0000,
0x00000005f5560000)
concurrent mark-sweep generation total 2621440K, used 212342K
[0x00000006b0000000, 0x0000000750000000, 0x00000007f0000000)
concurrent-mark-sweep perm gen total 262144K, used 67860K
[0x00000007f0000000, 0x0000000800000000, 0x0000000800000000)
2013-06-28T17:04:39.418-0400: 113.218: [GC 113.218: [ParNew
Desired survivor size 223674368 bytes, new threshold 4 (max 4)
- age 1: 4400568 bytes, 4400568 total
- age 2: 21544 bytes, 4422112 total
- age 3: 119936 bytes, 4542048 total
- age 4: 14400 bytes, 4556448 total
: 1793404K->14402K(2184576K), 0.0913000 secs] 2005747K->226746K(4806016K),
0.0928530 secs
Thanks,
Pablo.
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