kvm_stat: add column headers to text UI

The curses user interface shows both the accumulated total and the
current event counts.  Add column headers so it's clear what the numbers
mean.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Ademar Reis <areis@redhat.com>
Reviewed-by: Wei Huang <wei@redhat.com>
Message-Id: <1425338947-10296-2-git-send-email-stefanha@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

diff --git a/scripts/kvm/kvm_stat b/scripts/kvm/kvm_stat
index c65cabd..7e5d256 100755 (executable)
--- a/scripts/kvm/kvm_stat
+++ b/scripts/kvm/kvm_stat
@@ -519,7 +519,10 @@ def tui(screen, stats):
     def refresh(sleeptime):
         screen.erase()
         screen.addstr(0, 0, 'kvm statistics')
-        row = 2
+        screen.addstr(2, 1, 'Event')
+        screen.addstr(2, 1 + label_width + number_width - len('Total'), 'Total')
+        screen.addstr(2, 1 + label_width + number_width + 8 - len('Current'), 'Current')
+        row = 3
         s = stats.get()
         def sortkey(x):
             if s[x][1]: