Java CMS GC logic string definition?

Question

Examining the Java runtime environment with GC CMS (Concurrent-Mark-Sweep) enabled , what is the definition of CMSlog space below? Should I consider this storage space? I see the following lines of the GC event with a minor small world

23.481: [GC 23.481: [DefNew: 1051K->128K(1152K), 0.0029912 secs] 11925K->11027K(13600K), 0.0031697 secs] [Times: user=0.00 sys=0.00, real=0.00 secs]
23.492: [Full GC 23.492: [CMS: 10899K->9379K(12448K), 0.2675281 secs] 11182K->9379K(13600K), [CMS Perm : 16383K->16359K(16384K)], 0.2686291 secs] [Times: user=0.25 sys=0.00, real=0.27 secs]
23.956: [GC 23.956: [DefNew: 4224K->49K(4736K), 0.0027654 secs] 13603K->9428K(20372K), 0.0029230 secs] [Times: user=0.00 sys=0.01, real=0.02 secs]

In particular, [CMS: 10899K->9379K(12448K), 0.2675281 secs]in the event 23.492. Does this display space designated as CMS? Is only CMS based on running?

Answer 1

(Disclaimer: not an expert on JVM memory;)

GC CMS, CMS > , .

"" , .

CMS .