就你而言,它們看起來像是輔助和終止時間;
// CPU time
0.18 : **STW** Sweep termination.
7720ms : Mark/Scan - Assist Time (GC performed in line with allocation).
21356ms : Mark/Scan - Background GC time.
3615ms : Mark/Scan - Idle GC time.
0.65ms : **STW** Mark termination.
我認爲它改變(或者可能)在各種圍棋版本,你可以在runtime package docs找到更詳細的信息。也
Currently, it is:
gC# @#s #%: #+#+# ms clock, #+#/#/#+# ms cpu, #->#-># MB, # MB goal, # P
where the fields are as follows:
gC# the GC number, incremented at each GC
@#s time in seconds since program start
#% percentage of time spent in GC since program start
#+...+# wall-clock/CPU times for the phases of the GC
#->#-># MB heap size at GC start, at GC end, and live heap
# MB goal goal heap size
# P number of processors used
例here
Interpreting GC trace output見
gc 6 @48.155s 15%: 0.093+12360+0.32 ms clock,
0.18+7720/21356/3615+0.65 ms cpu, 11039->13278->6876 MB, 14183 MB goal, 8 P
- GC 6
- @ 48.155s自節目開始
- 15%:自方案在GC上花費的時間開始
- 0.093 + 12360 + 0.32 ms的時鐘停止的世界(STW)掃描終止+併發 標記和掃描+和STW標記末端
- 0.18 + 7720 /3615分之21356+ 0.65毫秒CPU,背景GC時間和空閒時間GC
- 11039-> 13278-> 6876 MB堆大小在GC開始(在 與分配線執行的GC),在GC結束,並且活堆
- 8 P使用的處理器數量