1--guestmount=<path>::
 2	Guest OS root file system mount directory. Users mount guest OS
 3	root directories under <path> by a specific filesystem access method,
 4	typically, sshfs.
 5	For example, start 2 guest OS, one's pid is 8888 and the other's is 9999:
 6[verse]
 7	$ mkdir \~/guestmount
 8	$ cd \~/guestmount
 9	$ sshfs -o allow_other,direct_io -p 5551 localhost:/ 8888/
10	$ sshfs -o allow_other,direct_io -p 5552 localhost:/ 9999/
11	$ perf {GMEXAMPLECMD} --guestmount=~/guestmount {GMEXAMPLESUBCMD}