diff options
Diffstat (limited to 'libs/utils/analysis/cpus_analysis.py')
| -rw-r--r-- | libs/utils/analysis/cpus_analysis.py | 36 |
1 files changed, 29 insertions, 7 deletions
diff --git a/libs/utils/analysis/cpus_analysis.py b/libs/utils/analysis/cpus_analysis.py index bb4a1f0..416be84 100644 --- a/libs/utils/analysis/cpus_analysis.py +++ b/libs/utils/analysis/cpus_analysis.py @@ -21,8 +21,6 @@ import matplotlib.pyplot as plt import pylab as pl import pandas as pd -from trappy.utils import listify - from analysis_module import AnalysisModule @@ -63,6 +61,32 @@ class CpusAnalysis(AnalysisModule): ctx_sw_df.index.name = 'cpu' return ctx_sw_df + def _dfg_cpu_wakeups(self, cpus=None): + """" + Get a DataFrame showing when a CPU was woken from idle + + :param cpus: List of CPUs to find wakeups for. If None, all CPUs. + :type cpus: list(int) or None + + :returns: :mod:`pandas.DataFrame` with one column ``cpu``, where each + row shows a time when the given ``cpu`` was woken up from + idle. + """ + if not self._trace.hasEvents('cpu_idle'): + self._log.warning('Events [cpu_idle] not found, cannot ' + 'get CPU wakeup events.') + return None + + cpus = cpus or range(self._trace.platform['cpus_count']) + + sr = pd.Series() + for cpu in cpus: + cpu_sr = self._trace.getCPUActiveSignal(cpu) + cpu_sr = cpu_sr[cpu_sr == 1] + cpu_sr = cpu_sr.replace(1, cpu) + sr = sr.append(cpu_sr) + + return pd.DataFrame({'cpu': sr}).sort_index() ############################################################################### # Plotting Methods @@ -82,17 +106,15 @@ class CpusAnalysis(AnalysisModule): # Filter on specified cpus if cpus is None: - cpus = sorted(self._platform['clusters']['little'] + - self._platform['clusters']['big']) - cpus = listify(cpus) + cpus = sorted(self._big_cpus + self._little_cpus) # Plot: big CPUs - bcpus = set(cpus) & set(self._platform['clusters']['big']) + bcpus = set(cpus).intersection(self._big_cpus) if bcpus: self._plotCPU(bcpus, "big") # Plot: LITTLE CPUs - lcpus = set(cpus) & set(self._platform['clusters']['little']) + lcpus = set(cpus).intersection(self._little_cpus) if lcpus: self._plotCPU(lcpus, "LITTLE") |