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authorJanosch Frank <frankja@linux.vnet.ibm.com>2016-01-11 16:18:03 +0100
committerPaolo Bonzini <pbonzini@redhat.com>2016-01-26 15:58:13 +0100
commit7f786a9a06cc100b1261b120c7698083a802d46c (patch)
tree553ac6142ea196756575be94dc65161b2e1f3717 /scripts/kvm
parent126b33e6191cd21ba7e05673eb1428b73bf2d34e (diff)
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scripts/kvm/kvm_stat: Add interactive filtering
Interactively changing the filter is much more useful than the drilldown, because it is more versatile. With this patch, the filter can be changed by pressing 'f' in the text ui and entering a new filter regex. Signed-off-by: Janosch Frank <frankja@linux.vnet.ibm.com> Message-Id: <1452525484-32309-34-git-send-email-frankja@linux.vnet.ibm.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'scripts/kvm')
-rwxr-xr-xscripts/kvm/kvm_stat24
1 files changed, 24 insertions, 0 deletions
diff --git a/scripts/kvm/kvm_stat b/scripts/kvm/kvm_stat
index eb97a65..25631a4 100755
--- a/scripts/kvm/kvm_stat
+++ b/scripts/kvm/kvm_stat
@@ -634,6 +634,28 @@ class Tui(object):
row += 1
self.screen.refresh()
+ def show_filter_selection(self):
+ while True:
+ self.screen.erase()
+ self.screen.addstr(0, 0,
+ "Show statistics for events matching a regex.",
+ curses.A_BOLD)
+ self.screen.addstr(2, 0,
+ "Current regex: {0}"
+ .format(self.stats.fields_filter))
+ self.screen.addstr(3, 0, "New regex: ")
+ curses.echo()
+ regex = self.screen.getstr()
+ curses.noecho()
+ if len(regex) == 0:
+ return
+ try:
+ re.compile(regex)
+ self.stats.fields_filter = regex
+ return
+ except re.error:
+ continue
+
def show_stats(self):
sleeptime = 0.25
while True:
@@ -647,6 +669,8 @@ class Tui(object):
self.update_drilldown()
if char == 'q':
break
+ if char == 'f':
+ self.show_filter_selection()
except KeyboardInterrupt:
break
except curses.error: