def get_mtime(path: Path, proc=None):
"""Returns file or directory mtime."""
if not proc:
return path.stat().st_mtime
cmd = f"stat -c %Y -- {path}"
mtime = proc.run_verify(cmd)[0].strip()
if not Trivial.is_float(mtime):
raise Error(f"got erroneous mtime of '{path}'{proc.hostmsg}:\n{mtime}")
return float(mtime)
def _next(self):
"""
Generator which yields a dictionary corresponding to one snapshot of turbostat output at a
time.
"""
cpus = OrderedDict()
table_started = False
nontable = {}
heading = totals = None
tbl_regex = re.compile(self._cols_regex)
for line in self._lines:
# Ignore empty and 'jitter' lines like "turbostat: cpu65 jitter 2574 5881".
if not line or line.startswith("turbostat: "):
continue
# Match the beginning of the turbostat table.
if not table_started and not re.match(tbl_regex, line):
_add_nontable_data(nontable, line)
continue
line = line.split()
if Trivial.is_float(line[0]):
# This is the continuation of the table we are currently parsing. It starts either
# with a floating-point 'Time_Of_Day_Seconds' an integer 'Core' value. Each line
# describes a single CPU.
cpu_data = _parse_turbostat_line(heading, line)
cpus[cpu_data["CPU"]] = cpu_data
else:
# This is the start of the new table.
if cpus or table_started:
if not cpus:
# This is the the special case for single-CPU systems. Turbostat does not
# print the totals because there is only one CPU and totals is the the same
# as the CPU information.
cpus[0] = totals
yield _construct_the_result(totals, cpus, nontable)
nontable = {}
cpus = OrderedDict()
heading = OrderedDict()
for key in line:
if "%" in key or "Watt" in key or key in ("Time_Of_Day_Seconds", ):
heading[key] = float
elif key in ("Package", "Core", "CPU"):
heading[key] = str
else:
heading[key] = int
# The next line is total statistics across all CPUs, exept if there is only one
# single CPU in the system.
# False pylint warning, see issue: https://github.com/PyCQA/pylint/issues/1830
line = next(self._lines).split() # pylint: disable=stop-iteration-return
# On systems with a single core turbostat does not include the "Core" colum. Similar
# to single CPU systems - the CPU column is excluded. Make sure we always have them.
for key in ("Core", "CPU"):
if key not in heading:
heading[key] = str
line.append("0")
totals = _parse_turbostat_line(heading, line)
table_started = True
yield _construct_the_result(totals, cpus, nontable)