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import os |
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import sys |
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import time |
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4
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5
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import psutil |
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6
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7
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sys.path.insert(0, '../glances') |
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8
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9
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from glances.globals import disable, enable |
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from glances.main import GlancesMain |
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from glances.stats import GlancesStats |
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12
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core = GlancesMain() |
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stats = GlancesStats(config=core.get_config(), args=core.get_args()) |
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refresh = 2 |
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iteration = 6 |
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pid = os.getpid() |
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process = psutil.Process(pid) |
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print("Check Glances process* plugins CPU consumption overhead") |
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print("=======================================================") |
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print() |
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print(f"Init Glances to make the stats more relevant (wait {iteration * refresh} seconds)") |
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for i in range(0, iteration): |
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stats.update() |
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time.sleep(refresh) |
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print("CPU consumption with process* plugins disable") |
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for p in ['processcount', 'processlist', 'programlist']: |
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disable(stats.get_plugin(p).args, p) |
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stats.get_plugin(p).reset() |
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cpu_start = sum(process.cpu_times()[:2]) |
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for i in range(0, iteration): |
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stats.update() |
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print(f'{i + 1}/{iteration}') |
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time.sleep(refresh) |
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cpu_end = sum(process.cpu_times()[:2]) |
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cpu_without_sensors = cpu_end - cpu_start |
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print(f'Glances process consumption (user + kernel) with process* plugins disable: {cpu_without_sensors}') |
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print("CPU consumption with process* plugins enable") |
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for p in ['processcount', 'processlist', 'programlist']: |
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enable(stats.get_plugin(p).args, p) |
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stats.get_plugin(p).reset() |
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cpu_start = sum(process.cpu_times()[:2]) |
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for i in range(0, iteration): |
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stats.update() |
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print(f'{i + 1}/{iteration}: {len(stats.get_plugin("processlist").get_raw())} processes') |
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time.sleep(refresh) |
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cpu_end = sum(process.cpu_times()[:2]) |
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cpu_with_sensors = cpu_end - cpu_start |
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print(f'Glances process consumption (user + kernel) with process* plugins enable: {cpu_with_sensors}') |
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56
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print( |
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f'Percentage of CPU consumption increase with process* plugins enable: \ |
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{((cpu_with_sensors - cpu_without_sensors) / cpu_without_sensors) * 100:.2f}%' |
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59
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) |
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60
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nicolargo /
glances
