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author | Peter Maydell <peter.maydell@linaro.org> | 2014-06-05 19:16:28 +0100 |
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committer | Peter Maydell <peter.maydell@linaro.org> | 2014-06-05 19:16:28 +0100 |
commit | 9f0355b590ac523d0c4e67c416c3f9cf7af3d574 (patch) | |
tree | 59be39e43a8014ec6031a0afe60dec29b6b3e032 /scripts | |
parent | d4f005db9b90b3df6945c709867ab62d8b772a94 (diff) | |
parent | 79b6f2f651d64a122dd647c1456635d5a6a176ac (diff) | |
download | qemu-9f0355b590ac523d0c4e67c416c3f9cf7af3d574.zip qemu-9f0355b590ac523d0c4e67c416c3f9cf7af3d574.tar.gz qemu-9f0355b590ac523d0c4e67c416c3f9cf7af3d574.tar.bz2 |
Merge remote-tracking branch 'remotes/kvm/uq/master' into staging
* remotes/kvm/uq/master:
kvm: Fix eax for cpuid leaf 0x40000000
kvmclock: Ensure proper env->tsc value for kvmclock_current_nsec calculation
kvm: Enable -cpu option to hide KVM
kvm: Ensure negative return value on kvm_init() error handling path
target-i386: set CC_OP to CC_OP_EFLAGS in cpu_load_eflags
target-i386: get CPL from SS.DPL
target-i386: rework CPL checks during task switch, preparing for next patch
target-i386: fix segment flags for SMM and VM86 mode
target-i386: Fix vm86 mode regression introduced in fd460606fd6f.
kvm_stat: allow choosing between tracepoints and old stats
kvmclock: Ensure time in migration never goes backward
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'scripts')
-rwxr-xr-x | scripts/kvm/kvm_stat | 60 |
1 files changed, 41 insertions, 19 deletions
diff --git a/scripts/kvm/kvm_stat b/scripts/kvm/kvm_stat index 762544b..d7e97e7 100755 --- a/scripts/kvm/kvm_stat +++ b/scripts/kvm/kvm_stat @@ -352,8 +352,8 @@ class TracepointProvider(object): return ret class Stats: - def __init__(self, provider, fields = None): - self.provider = provider + def __init__(self, providers, fields = None): + self.providers = providers self.fields_filter = fields self._update() def _update(self): @@ -362,22 +362,25 @@ class Stats: if not self.fields_filter: return True return re.match(self.fields_filter, key) is not None - self.values = dict([(key, None) - for key in provider.fields() - if wanted(key)]) - self.provider.select(self.values.keys()) + self.values = dict() + for d in providers: + provider_fields = [key for key in d.fields() if wanted(key)] + for key in provider_fields: + self.values[key] = None + d.select(provider_fields) def set_fields_filter(self, fields_filter): self.fields_filter = fields_filter self._update() def get(self): - new = self.provider.read() - for key in self.provider.fields(): - oldval = self.values.get(key, (0, 0)) - newval = new[key] - newdelta = None - if oldval is not None: - newdelta = newval - oldval[0] - self.values[key] = (newval, newdelta) + for d in providers: + new = d.read() + for key in d.fields(): + oldval = self.values.get(key, (0, 0)) + newval = new[key] + newdelta = None + if oldval is not None: + newdelta = newval - oldval[0] + self.values[key] = (newval, newdelta) return self.values if not os.access('/sys/kernel/debug', os.F_OK): @@ -487,6 +490,18 @@ options.add_option('-l', '--log', dest = 'log', help = 'run in logging mode (like vmstat)', ) +options.add_option('-t', '--tracepoints', + action = 'store_true', + default = False, + dest = 'tracepoints', + help = 'retrieve statistics from tracepoints', + ) +options.add_option('-d', '--debugfs', + action = 'store_true', + default = False, + dest = 'debugfs', + help = 'retrieve statistics from debugfs', + ) options.add_option('-f', '--fields', action = 'store', default = None, @@ -495,12 +510,19 @@ options.add_option('-f', '--fields', ) (options, args) = options.parse_args(sys.argv) -try: - provider = TracepointProvider() -except: - provider = DebugfsProvider() +providers = [] +if options.tracepoints: + providers.append(TracepointProvider()) +if options.debugfs: + providers.append(DebugfsProvider()) + +if len(providers) == 0: + try: + providers = [TracepointProvider()] + except: + providers = [DebugfsProvider()] -stats = Stats(provider, fields = options.fields) +stats = Stats(providers, fields = options.fields) if options.log: log(stats) |