Re: How to interpret some GC logs

2015-06-03 Thread Carlos Rolo
GC Logs are a weird science. I use a couple of resources to get through them. Regarding your question my 1.8.0_40 always have the first the "->". I "greped" through 2h of logs, and on a test environment. I use the following set of options: -XX:+PrintGCDetails" -XX:+PrintGCDateStamps" -XX:+PrintHe

Re: How to interpret some GC logs

2015-06-02 Thread Michał Łowicki
On Tue, Jun 2, 2015 at 9:06 AM, Sebastian Martinka < sebastian.marti...@mercateo.com> wrote: > this should help you: > > https://blogs.oracle.com/poonam/entry/understanding_cms_gc_logs > I don't see there such format. Passed options related to GC are: -XX:+PrintGCDateStamps -Xloggc:/var/log/cas

Re: How to interpret some GC logs

2015-06-02 Thread Michał Łowicki
On Mon, Jun 1, 2015 at 7:25 PM, Jason Wee wrote: > can you tell what jvm is that? > root@db2:~# java -version java version "1.7.0_80" Java(TM) SE Runtime Environment (build 1.7.0_80-b15) Java HotSpot(TM) 64-Bit Server VM (build 24.80-b11, mixed mode) > > jason > > On Mon, Jun 1, 2015 at 5:4

Re: How to interpret some GC logs

2015-06-01 Thread Jason Wee
can you tell what jvm is that? jason On Mon, Jun 1, 2015 at 5:46 PM, Michał Łowicki wrote: > Hi, > > Normally I get logs like: > > 2015-06-01T09:19:50.610+: 4736.314: [GC 6505591K->4895804K(8178944K), > 0.0494560 secs] > > which is fine and understandable but occasionalIy I see something li