promotion failed

Ken--@newsgroupstats.hk dragonken at gmail.com
Fri Jul 18 05:21:31 PDT 2008


Dear All,

please advise any more tuning for avoiding promotion failed

VM Options:
"C:\Program Files\Java\jdk1.6.0_04\bin\java" -server -verbose:gc
-XX:+PrintGCDetails -Xloggc:gc.log -showversion -Xms4G -Xmx4G
-XX:NewSize=512M -XX:PermSize=64M -XX:MaxPermSize=64M
-XX:+CMSClassUnloadingEnabled -XX:+DisableExplicitGC -XX:+UseConcMarkSweepGC
-XX:+UseParNewGC -XX:SurvivorRatio=6 -XX:CMSInitiatingOccupancyFraction=70
-XX:TargetSurvivorRatio=90 -XX:+HandlePromotionFailure
-Dcom.sun.management.jmxremote.port=7191
-Dcom.sun.management.jmxremote.authenticate=false
-Dcom.sun.management.jmxremote.ssl=false

GC Log:
227734.958: [GC 227734.958: [ParNew: 458751K->65536K(458752K), 0.4883967
secs] 2975829K->2611470K(4128768K), 0.4885529 secs] [Times: user=1.42
sys=0.20, real=0.48 secs] 
227781.363: [GC 227781.363: [ParNew (promotion failed):
458752K->458751K(458752K), 1.1739277 secs]
227782.544: [CMS: 2566464K->903491K(3670016K), 14.2218888 secs]
3004686K->903491K(4128768K), 15.4022930 secs] [Times: user=16.16 sys=0.70,
real=15.39 secs] 
227796.767: [GC [1 CMS-initial-mark: 903491K(3670016K)] 910269K(4128768K),
0.0014926 secs] [Times: user=0.02 sys=0.00, real=0.00 secs] 
227796.769: [CMS-concurrent-mark-start]
227799.448: [GC 227799.449: [ParNew: 393216K->21851K(458752K), 0.0851390
secs] 1296707K->925343K(4128768K), 0.0853620 secs] [Times: user=0.86
sys=0.00, real=0.09 secs] 
227799.536: [CMS-concurrent-mark: 2.670/2.767 secs] [Times: user=9.72
sys=0.03, real=2.77 secs] 
227799.536: [CMS-concurrent-preclean-start]
227800.624: [GC 227800.624: [ParNew: 415067K->11565K(458752K), 0.0345770
secs] 1318559K->915056K(4128768K), 0.0347455 secs] [Times: user=0.27
sys=0.06, real=0.05 secs] 
227800.684: [CMS-concurrent-preclean: 0.995/1.148 secs] [Times: user=4.38
sys=0.23, real=1.14 secs] 
227800.684: [CMS-concurrent-abortable-preclean-start]
227801.270: [CMS-concurrent-abortable-preclean: 0.475/0.587 secs] [Times:
user=2.22 sys=0.09, real=0.59 secs] 
227801.273: [GC[YG occupancy: 240407 K (458752 K)]227801.273: [Rescan
(parallel) , 0.0092978 secs]227801.282: [weak refs processing, 0.0002179
secs]227801.283: [class unloading, 0.0082907 secs]227801.291: [scrub symbol
& string tables, 0.0066056 secs] [1 CMS-remark: 903491K(3670016K)]
1143898K(4128768K), 0.0275619 secs] [Times: user=0.03 sys=0.00, real=0.03
secs] 
227801.302: [CMS-concurrent-sweep-start]
227803.075: [CMS-concurrent-sweep: 1.773/1.773 secs] [Times: user=4.19
sys=0.03, real=1.77 secs] 
227803.075: [CMS-concurrent-reset-start]
227803.103: [CMS-concurrent-reset: 0.028/0.028 secs] [Times: user=0.06
sys=0.00, real=0.03 secs] 
227816.785: [GC 227816.786: [ParNew: 404776K->25694K(458752K), 0.2086003
secs] 1188297K->809215K(4128768K), 0.2087517 secs] [Times: user=1.13
sys=0.19, real=0.20 secs] 

Regards,
Ken



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