tools/kvm_stat: add option '--guest'
Add a new option '-g'/'--guest' to select a particular process by providing
the QEMU guest name.
Notes:
- The logic to figure out the pid corresponding to the guest name might look
scary, but works pretty reliably in practice; in the unlikely event that it
returns add'l flukes, it will bail out and hint at using '-p' instead, no
harm done.
- Mixing '-g' and '-p' is possible, and the final instance specified on the
command line is the significant one. This is consistent with current
behavior for '-p' which, if specified multiple times, also regards the final
instance as the significant one.
Signed-off-by: Stefan Raspl <raspl@linux.vnet.ibm.com>
Reviewed-by: Janosch Frank <frankja@linux.vnet.ibm.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
diff --git a/tools/kvm/kvm_stat/kvm_stat.txt b/tools/kvm/kvm_stat/kvm_stat.txt
index 077bcc7..35587c3 100644
--- a/tools/kvm/kvm_stat/kvm_stat.txt
+++ b/tools/kvm/kvm_stat/kvm_stat.txt
@@ -31,6 +31,8 @@
[horizontal]
*f*:: filter by regular expression
+*g*:: filter by guest name
+
*p*:: filter by PID
*q*:: quit
@@ -62,6 +64,10 @@
--pid=<pid>::
limit statistics to one virtual machine (pid)
+-g<guest>::
+--guest=<guest_name>::
+ limit statistics to one virtual machine (guest name)
+
-f<fields>::
--fields=<fields>::
fields to display (regex)