def _register_gauges(self):
if not _PSUTIL_ENABLED:
_logger.warning(
"Statistics collection is enabled, but psutil is not found. "
"Runtime and system related metrics will not be collected.")
return
self._register_system_gauge(
"os.totalPhysicalMemorySize",
lambda: psutil.virtual_memory().total,
)
self._register_system_gauge(
"os.freePhysicalMemorySize",
lambda: psutil.virtual_memory().free,
)
self._register_system_gauge(
"os.committedVirtualMemorySize",
lambda: psutil.virtual_memory().used,
)
self._register_system_gauge(
"os.totalSwapSpaceSize",
lambda: psutil.swap_memory().total,
)
self._register_system_gauge(
"os.freeSwapSpaceSize",
lambda: psutil.swap_memory().free,
)
self._register_system_gauge(
"os.systemLoadAverage",
lambda: os.getloadavg()[0],
ValueType.DOUBLE,
)
self._register_system_gauge(
"runtime.availableProcessors",
lambda: psutil.cpu_count(),
)
self._register_process_gauge(
"runtime.usedMemory",
lambda p: p.memory_info().rss,
)
self._register_process_gauge(
"os.openFileDescriptorCount",
lambda p: p.num_fds(),
)
self._register_process_gauge(
"os.maxFileDescriptorCount",
lambda p: p.rlimit(psutil.RLIMIT_NOFILE)[1],
)
self._register_process_gauge(
"os.processCpuTime",
lambda p: to_nanos(sum(p.cpu_times())),
)
self._register_process_gauge(
"runtime.uptime",
lambda p: to_millis(current_time() - p.create_time()),
)
def _collect_process_cpu_time(self, psutil_stats, probe_name, process):
return to_nanos(sum(process.cpu_times()))