PrintGCStats

JVMの"verbose:gc"ログを解析してレポートを作るシェルスクリプト．gcPortalの代わりにはなるかな？

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にさりげなく入ってた．

こんなん気づくかと．

(追記)使ってみた〜．

$ ./PrintGCStats -v ncpu=4 gc.log

what         count       total      mean      max   stddev
gen0(s)          9       1.492   0.16576    0.310   0.0797
gen0t(s)         9       1.493   0.16591    0.310   0.0797
gen1t(s)        10      10.282   1.02817    1.280   0.1454
GC(s)           19      11.775   0.61973    1.280   0.4572
alloc(MB)        9     215.985  23.99837   24.000   0.0033
promo(MB)        9      20.233   2.24816   10.147   3.4304

alloc/elapsed_time    =    215.985 MB /    179.298 s  =   1.205 MB/s
alloc/tot_cpu_time    =    215.985 MB /    717.192 s  =   0.301 MB/s
alloc/mut_cpu_time    =    215.985 MB /    670.092 s  =   0.322 MB/s
promo/elapsed_time    =     20.233 MB /    179.298 s  =   0.113 MB/s
promo/gc0_time        =     20.233 MB /      1.493 s  =  13.551 MB/s
gc_seq_load           =     47.100 s  /    717.192 s  =   6.567%
gc_conc_load          =      0.000 s  /    717.192 s  =   0.000%
gc_tot_load           =     47.100 s  /    717.192 s  =   6.567%

あ，GC Portalなくていいや．