lisa.wa.WASysfsExtractorCollector#

class lisa.wa.WASysfsExtractorCollector(wa_output, path, type='diff', **kwargs)[source]#

Bases: WAArtifactCollectorBase

WA collector for the syfs-extractor augmentation.

Example:

def pixel6_energy_meter(df):
    # Keep only CPU's meters
    df = df[df.value.str.contains('S4M_VDD_CPUCL0|S3M_VDD_CPUCL1|S2M_VDD_CPUCL2')]
    df[['variable', 'value']] = df.value.str.split(', ', expand=True)

    def _clean_variable(variable):
        if 'S4M_VDD_CPUCL0' in variable:
            return 'little-energy'
        if 'S3M_VDD_CPUCL1' in variable:
            return 'mid-energy'
        if 'S2M_VDD_CPUCL2' in variable:
            return 'big-energy'
        return ''

    df['variable'] = df['variable'].apply(_clean_variable)
    df['value'] = df['value'].astype(int)
    df['unit'] = "bogo-ujoules"

    # Add a total energy variable
    df = pd.concat([
        df,
        pd.DataFrame(data={
            'variable': 'total-energy',
            'value': [df['value'].sum()]
        })
    ])
    df.ffill(inplace=True)

    return df

df = WAOutput('.').get_collector(
        'sysfs-extractor',
        path='/sys/bus/iio/devices/iio:device0/energy_value',
        df_postprocess=pixel6_energy_meter
).df

Attributes

NAME

Properties

`df` ^inherited	`pandas.DataFrame` containing the data collected.
`logger` ^inherited	Convenience short-hand for `self.get_logger()`.
`stats` ^inherited	Short-hand property equivalent to `self.get_stats()`.

Methods

`get_logger()` ^inherited	Provides a `logging.Logger` named after `cls`.
`get_stats()` ^inherited	Returns a `lisa.stats.Stats` loaded with the result `pandas.DataFrame`.
`log_locals()` ^inherited	Debugging aid: log the local variables of the calling function.