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authorLin Ma <lma@suse.com>2017-07-25 19:05:54 +0800
committerPaolo Bonzini <pbonzini@redhat.com>2017-07-26 19:04:53 +0200
commit67fbcd62f54d4503e3dc63b68af1c6757b74e050 (patch)
tree92dbbaf23934eee0b5786bae7c5fac856b456f02
parentefcb521943a8df5210f16f312037c2edc3e1449f (diff)
downloadlinux-67fbcd62f54d4503e3dc63b68af1c6757b74e050.tar.bz2
tools/kvm_stat: add '-f help' to get the available event list
Signed-off-by: Lin Ma <lma@suse.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
-rwxr-xr-xtools/kvm/kvm_stat/kvm_stat16
1 files changed, 14 insertions, 2 deletions
diff --git a/tools/kvm/kvm_stat/kvm_stat b/tools/kvm/kvm_stat/kvm_stat
index 5704044b1c0b..32283d88701a 100755
--- a/tools/kvm/kvm_stat/kvm_stat
+++ b/tools/kvm/kvm_stat/kvm_stat
@@ -474,7 +474,7 @@ class Provider(object):
@staticmethod
def is_field_wanted(fields_filter, field):
"""Indicate whether field is valid according to fields_filter."""
- if not fields_filter:
+ if not fields_filter or fields_filter == "help":
return True
return re.match(fields_filter, field) is not None
@@ -1496,7 +1496,8 @@ Press any other key to refresh statistics immediately.
action='store',
default=DEFAULT_REGEX,
dest='fields',
- help='fields to display (regex)',
+ help='''fields to display (regex)
+ "-f help" for a list of available events''',
)
optparser.add_option('-p', '--pid',
action='store',
@@ -1559,6 +1560,17 @@ def main():
stats = Stats(options)
+ if options.fields == "help":
+ event_list = "\n"
+ s = stats.get()
+ for key in s.keys():
+ if key.find('(') != -1:
+ key = key[0:key.find('(')]
+ if event_list.find('\n' + key + '\n') == -1:
+ event_list += key + '\n'
+ sys.stdout.write(event_list)
+ return ""
+
if options.log:
log(stats)
elif not options.once: