JVM - jstat

Monitors Java Virtual Machine (JVM) statistics. This command is experimental and unsupported.

jstat [ generalOption | outputOptions vmid [ interval[s|ms] [ count ] ]
//vmid: [protocol:][//]lvmid[@hostname[:port]/servername]

refer: https://docs.oracle.com/javase/8/docs/technotes/tools/windows/jstat.html

$_ jstat -help
$_ jstat -options

-class
-compiler
-gc
-gccapacity
-gccause
-gcnew
-gcnewcapacity
-gcold
-gcoldcapacity
-gcpermcapacity
-gcutil
-printcompilation

$_ ./jstat -printcompilation  -t 18128 1s
$_ ./jstat -printcompilation  -t 18128 1s 2
$_ ./jstat -gc -t 18128 1s 2

Timestamp S0C S1C S0U S1U EC EU OC
OU PC PU YGC YGCT FGC FGCT GCT
3346.4 571392.0 607744.0 340114.4 384.0 1505280.0 1505280.0 5460992.0 1679695.0 66560.0 61799.4 2463 493.065 59 220.141 713.206
3347.4 585216.0 607744.0 0.0 384.0 1505280.0 302819.9 5460992.0 1933919.0 66560.0 61799.4 2463 493.496 59 220.141 713.637

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