arthas/arthas-tutorials-en/command/vmoption/vmoption.md

Display, and update the vm diagnostic options.

vmoption -h{{execute T2}}

vmoption command Docs

Usage

View all options

vmoption{{execute T2}}

View individual option

vmoption PrintGCDetails{{execute T2}}

Update individual option

vmoption PrintGC true{{execute T2}}

Then use the vmtool{{}} command to force GC, you can see the GC log printed in Tab 1{{}} :

vmtool --action forceGc{{execute T2}}

Configure print GC details

vmoption PrintGCDetails true{{execute T2}}

Then use the vmtool{{}} command to force GC, you can see the GC details printed in Tab 1{{}} :

vmtool --action forceGc{{execute T2}}