CMS GC log

[Former Member]

Hi, All. I have a CMS GC log like this:

250169.767: [GC 250169.767: [ParNew (promotion failed): 571584K->571584K(571584K), 0.6487910 secs]250170.416: [CMS250173.050: [CMS-concurrent-mark: 2.887/3.777 secs] [Times: user=10.86 sys=0.56, real=3.78 secs]

(concurrent mode failure): 2268975K->2111899K(2516992K), 8.3732150 secs] 2766660K->2111899K(3088576K), [CMS Perm : 562899K->562896K(1048576K)], 9.0223120 secs] [Times: user=9.78 sys=0.28, real=9.02 secs]

My question is how long is stop-the-world time? Is it 9.02 secs? Or what't the relationship between the first real time 3.78 secs and the second real time 9.02 secs?

Thanks.

[Former Member · Accepted solution]

3.78 - work in concurrent mode (concurrent mark)

0.6487910 and 8.3732159 - stop-the-world phases

9.02 - overall GC time

[Former Member · Accepted solution]

Thanks. I got it!