nicolargo/glances
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Glances reports different amounts of used memory than free -m or top #1924

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This commit is contained in:
nicolargo 2022-04-10 15:53:22 +02:00
parent 7003028f9e
commit ed85bc43ed
2 changed files with 147 additions and 148 deletions
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2
docs/aoa/memory.rst
View File

@ -18,6 +18,8 @@ Stats description:
- **total**: total physical memory available. - **total**: total physical memory available.
- **used**: memory used, calculated differently depending on the platform and - **used**: memory used, calculated differently depending on the platform and
designed for informational purposes only. designed for informational purposes only.
It's compute as following:
used memory = total - free (with free = available + buffers + cached)
- **free**: memory not being used at all (zeroed) that is readily available; - **free**: memory not being used at all (zeroed) that is readily available;
note that this doesn’t reflect the actual memory available (use ‘available’ note that this doesn’t reflect the actual memory available (use ‘available’
instead). instead).

293
docs/api.rst
View File

@ -66,14 +66,14 @@ GET alert
Get plugin stats:: Get plugin stats::
# curl http://localhost:61208/api/3/alert # curl http://localhost:61208/api/3/alert
[[1649598627.0, [[1649598784.0,
-1, -1,
'WARNING', 'WARNING',
'MEM', 'MEM',
87.0247252460522, 87.7440430839239,
87.0247252460522, 87.7440430839239,
87.0247252460522, 87.7440430839239,
87.0247252460522, 87.7440430839239,
1, 1,
[], [],
'', '',
@ -93,7 +93,7 @@ Get plugin stats::
'refresh': 3.0, 'refresh': 3.0,
'regex': True, 'regex': True,
'result': None, 'result': None,
'timer': 0.1502704620361328}, 'timer': 0.17049384117126465},
{'count': 0, {'count': 0,
'countmax': 20.0, 'countmax': 20.0,
'countmin': None, 'countmin': None,
@ -102,7 +102,7 @@ Get plugin stats::
'refresh': 3.0, 'refresh': 3.0,
'regex': True, 'regex': True,
'result': None, 'result': None,
'timer': 0.15010571479797363}] 'timer': 0.17037177085876465}]
Get a specific field:: Get a specific field::
@ -120,7 +120,7 @@ Get a specific item when field matchs the given value::
'refresh': 3.0, 'refresh': 3.0,
'regex': True, 'regex': True,
'result': None, 'result': None,
'timer': 0.1502704620361328}]} 'timer': 0.17049384117126465}]}
GET core GET core
-------- --------
@ -150,19 +150,19 @@ Get plugin stats::
'ctx_switches': 0, 'ctx_switches': 0,
'guest': 0.0, 'guest': 0.0,
'guest_nice': 0.0, 'guest_nice': 0.0,
'idle': 56.7, 'idle': 51.4,
'interrupts': 0, 'interrupts': 0,
'iowait': 0.0, 'iowait': 0.0,
'irq': 0.0, 'irq': 0.0,
'nice': 0.5, 'nice': 0.9,
'soft_interrupts': 0, 'soft_interrupts': 0,
'softirq': 0.0, 'softirq': 0.2,
'steal': 0.0, 'steal': 0.0,
'syscalls': 0, 'syscalls': 0,
'system': 12.1, 'system': 14.2,
'time_since_update': 1, 'time_since_update': 1,
'total': 43.9, 'total': 44.9,
'user': 30.7} 'user': 33.3}
Fields descriptions: Fields descriptions:
@ -184,7 +184,7 @@ Fields descriptions:
Get a specific field:: Get a specific field::
# curl http://localhost:61208/api/3/cpu/total # curl http://localhost:61208/api/3/cpu/total
{'total': 43.9} {'total': 44.9}
GET diskio GET diskio
---------- ----------
@ -230,13 +230,13 @@ Get plugin stats::
# curl http://localhost:61208/api/3/fs # curl http://localhost:61208/api/3/fs
[{'device_name': '/dev/mapper/ubuntu--gnome--vg-root', [{'device_name': '/dev/mapper/ubuntu--gnome--vg-root',
'free': 79636443136, 'free': 79636021248,
'fs_type': 'ext4', 'fs_type': 'ext4',
'key': 'mnt_point', 'key': 'mnt_point',
'mnt_point': '/', 'mnt_point': '/',
'percent': 65.5, 'percent': 65.5,
'size': 243396149248, 'size': 243396149248,
'used': 151372251136}] 'used': 151372673024}]
Get a specific field:: Get a specific field::
@ -247,13 +247,13 @@ Get a specific item when field matchs the given value::
# curl http://localhost:61208/api/3/fs/mnt_point// # curl http://localhost:61208/api/3/fs/mnt_point//
{'/': [{'device_name': '/dev/mapper/ubuntu--gnome--vg-root', {'/': [{'device_name': '/dev/mapper/ubuntu--gnome--vg-root',
'free': 79636443136, 'free': 79636021248,
'fs_type': 'ext4', 'fs_type': 'ext4',
'key': 'mnt_point', 'key': 'mnt_point',
'mnt_point': '/', 'mnt_point': '/',
'percent': 65.5, 'percent': 65.5,
'size': 243396149248, 'size': 243396149248,
'used': 151372251136}]} 'used': 151372673024}]}
GET ip GET ip
------ ------
@ -278,7 +278,7 @@ GET load
Get plugin stats:: Get plugin stats::
# curl http://localhost:61208/api/3/load # curl http://localhost:61208/api/3/load
{'cpucore': 4, 'min1': 0.85, 'min15': 1.7, 'min5': 1.39} {'cpucore': 4, 'min1': 1.74, 'min15': 1.64, 'min5': 1.41}
Fields descriptions: Fields descriptions:
@ -290,7 +290,7 @@ Fields descriptions:
Get a specific field:: Get a specific field::
# curl http://localhost:61208/api/3/load/min1 # curl http://localhost:61208/api/3/load/min1
{'min1': 0.85} {'min1': 1.74}
GET mem GET mem
------- -------
@ -298,16 +298,16 @@ GET mem
Get plugin stats:: Get plugin stats::
# curl http://localhost:61208/api/3/mem # curl http://localhost:61208/api/3/mem
{'active': 3496165376, {'active': 3487096832,
'available': 1018429440, 'available': 961970176,
'buffers': 201367552, 'buffers': 188796928,
'cached': 1473327104, 'cached': 1438552064,
'free': 1018429440, 'free': 961970176,
'inactive': 1198579712, 'inactive': 1171030016,
'percent': 87.0, 'percent': 87.7,
'shared': 496037888, 'shared': 523972608,
'total': 7849000960, 'total': 7849000960,
'used': 6830571520} 'used': 6887030784}
Fields descriptions: Fields descriptions:
@ -334,13 +334,13 @@ GET memswap
Get plugin stats:: Get plugin stats::
# curl http://localhost:61208/api/3/memswap # curl http://localhost:61208/api/3/memswap
{'free': 7899197440, {'free': 7891595264,
'percent': 2.3, 'percent': 2.4,
'sin': 17911808, 'sin': 18165760,
'sout': 202194944, 'sout': 209731584,
'time_since_update': 1, 'time_since_update': 1,
'total': 8082419712, 'total': 8082419712,
'used': 183222272} 'used': 190824448}
Fields descriptions: Fields descriptions:
@ -376,9 +376,9 @@ Get plugin stats::
'time_since_update': 1, 'time_since_update': 1,
'tx': 0}, 'tx': 0},
{'alias': None, {'alias': None,
'cumulative_cx': 102490, 'cumulative_cx': 111659,
'cumulative_rx': 0, 'cumulative_rx': 0,
'cumulative_tx': 102490, 'cumulative_tx': 111659,
'cx': 0, 'cx': 0,
'interface_name': 'vboxnet0', 'interface_name': 'vboxnet0',
'is_up': True, 'is_up': True,
@ -434,7 +434,7 @@ GET now
Get plugin stats:: Get plugin stats::
# curl http://localhost:61208/api/3/now # curl http://localhost:61208/api/3/now
'2022-04-10 15:50:27 CEST' '2022-04-10 15:53:04 CEST'
GET percpu GET percpu
---------- ----------
@ -445,29 +445,29 @@ Get plugin stats::
[{'cpu_number': 0, [{'cpu_number': 0,
'guest': 0.0, 'guest': 0.0,
'guest_nice': 0.0, 'guest_nice': 0.0,
'idle': 54.0, 'idle': 40.0,
'iowait': 0.0,
'irq': 0.0,
'key': 'cpu_number',
'nice': 0.0,
'softirq': 0.0,
'steal': 0.0,
'system': 6.0,
'total': 46.0,
'user': 21.0},
{'cpu_number': 1,
'guest': 0.0,
'guest_nice': 0.0,
'idle': 61.0,
'iowait': 0.0, 'iowait': 0.0,
'irq': 0.0, 'irq': 0.0,
'key': 'cpu_number', 'key': 'cpu_number',
'nice': 1.0, 'nice': 1.0,
'softirq': 0.0, 'softirq': 0.0,
'steal': 0.0, 'steal': 0.0,
'system': 12.0, 'system': 8.0,
'total': 39.0, 'total': 60.0,
'user': 9.0}] 'user': 46.0},
{'cpu_number': 1,
'guest': 0.0,
'guest_nice': 0.0,
'idle': 55.0,
'iowait': 0.0,
'irq': 0.0,
'key': 'cpu_number',
'nice': 1.0,
'softirq': 0.0,
'steal': 0.0,
'system': 6.0,
'total': 45.0,
'user': 29.0}]
Get a specific field:: Get a specific field::
@ -486,7 +486,7 @@ Get plugin stats::
'port': 0, 'port': 0,
'refresh': 30, 'refresh': 30,
'rtt_warning': None, 'rtt_warning': None,
'status': 0.006071, 'status': 0.007309,
'timeout': 3}] 'timeout': 3}]
Get a specific field:: Get a specific field::
@ -503,7 +503,7 @@ Get a specific item when field matchs the given value::
'port': 0, 'port': 0,
'refresh': 30, 'refresh': 30,
'rtt_warning': None, 'rtt_warning': None,
'status': 0.006071, 'status': 0.007309,
'timeout': 3}]} 'timeout': 3}]}
GET processcount GET processcount
@ -512,12 +512,12 @@ GET processcount
Get plugin stats:: Get plugin stats::
# curl http://localhost:61208/api/3/processcount # curl http://localhost:61208/api/3/processcount
{'pid_max': 0, 'running': 1, 'sleeping': 260, 'thread': 1307, 'total': 321} {'pid_max': 0, 'running': 1, 'sleeping': 260, 'thread': 1303, 'total': 318}
Get a specific field:: Get a specific field::
# curl http://localhost:61208/api/3/processcount/total # curl http://localhost:61208/api/3/processcount/total
{'total': 321} {'total': 318}
GET processlist GET processlist
--------------- ---------------
@ -533,12 +533,12 @@ Get plugin stats::
'--vrde', '--vrde',
'config'], 'config'],
'cpu_percent': 0.0, 'cpu_percent': 0.0,
'cpu_times': pcputimes(user=82.82, system=951.49, children_user=0.0, children_system=0.0, iowait=0.0), 'cpu_times': pcputimes(user=88.06, system=1004.53, children_user=0.0, children_system=0.0, iowait=0.0),
'gids': pgids(real=1000, effective=1000, saved=1000), 'gids': pgids(real=1000, effective=1000, saved=1000),
'io_counters': [0, 0, 0, 0, 0], 'io_counters': [0, 0, 0, 0, 0],
'key': 'pid', 'key': 'pid',
'memory_info': pmem(rss=964993024, vms=4202561536, shared=926556160, text=53248, lib=0, data=98004992, dirty=0), 'memory_info': pmem(rss=964915200, vms=4202561536, shared=926478336, text=53248, lib=0, data=98004992, dirty=0),
'memory_percent': 12.29446943525409, 'memory_percent': 12.293477920532704,
'name': 'VBoxHeadless', 'name': 'VBoxHeadless',
'nice': 0, 'nice': 0,
'num_threads': 28, 'num_threads': 28,
@ -549,15 +549,15 @@ Get plugin stats::
'username': 'nicolargo'}, 'username': 'nicolargo'},
{'cmdline': ['/usr/lib/firefox/firefox', '-new-window'], {'cmdline': ['/usr/lib/firefox/firefox', '-new-window'],
'cpu_percent': 0.0, 'cpu_percent': 0.0,
'cpu_times': pcputimes(user=520.8, system=165.6, children_user=325.1, children_system=45.16, iowait=1.73), 'cpu_times': pcputimes(user=531.42, system=169.72, children_user=329.51, children_system=45.83, iowait=1.73),
'gids': pgids(real=1000, effective=1000, saved=1000), 'gids': pgids(real=1000, effective=1000, saved=1000),
'io_counters': [701751296, 859406336, 0, 0, 0], 'io_counters': [702185472, 866934784, 0, 0, 0],
'key': 'pid', 'key': 'pid',
'memory_info': pmem(rss=450969600, vms=4304453632, shared=112594944, text=643072, lib=0, data=817766400, dirty=0), 'memory_info': pmem(rss=469880832, vms=4312092672, shared=119783424, text=643072, lib=0, data=817766400, dirty=0),
'memory_percent': 5.745566885495705, 'memory_percent': 5.986504962792106,
'name': 'GeckoMain', 'name': 'GeckoMain',
'nice': 0, 'nice': 0,
'num_threads': 135, 'num_threads': 134,
'pid': 4964, 'pid': 4964,
'ppid': 3777, 'ppid': 3777,
'status': 'S', 'status': 'S',
@ -574,17 +574,17 @@ Get a specific field::
5294, 5294,
16229, 16229,
5305, 5305,
15998,
5894, 5894,
15998,
4033, 4033,
17438, 17492,
16038, 16038,
15933, 15933,
15053, 15053,
15966, 15966,
16111, 16111,
18604, 18604,
17492, 19240,
5648, 5648,
17565, 17565,
5060, 5060,
@ -598,7 +598,7 @@ Get a specific field::
2410, 2410,
15938, 15938,
15937, 15937,
19004, 19494,
3789, 3789,
2233, 2233,
3846, 3846,
@ -610,46 +610,46 @@ Get a specific field::
4119, 4119,
14256, 14256,
5024, 5024,
4193,
349, 349,
4193,
9690, 9690,
1160, 1160,
4192,
2380, 2380,
4094, 4094,
3787, 3787,
4187, 4192,
1173,
4627, 4627,
1173,
4187,
1315, 1315,
1320, 1320,
2197, 2197,
4088, 4088,
4232,
14247, 14247,
1, 1,
4232,
4130, 4130,
4191,
1199, 1199,
4213, 4191,
4167, 4167,
1175, 1175,
4213,
3531, 3531,
9684, 9684,
4064, 4064,
2189, 2189,
4308, 4308,
1039,
14266, 14266,
1039,
4062, 4062,
10484, 10484,
4589, 4589,
4019, 4019,
14265,
4194,
4188, 4188,
1584, 1584,
14265,
4198, 4198,
4194,
3777, 3777,
2386, 2386,
3762, 3762,
@ -659,14 +659,14 @@ Get a specific field::
4105, 4105,
1365, 1365,
4057, 4057,
4276,
1196, 1196,
1142, 1142,
3900, 3900,
16135, 16135,
3831, 3831,
4203,
3813, 3813,
4203,
4276,
1195, 1195,
1158, 1158,
3855, 3855,
@ -675,27 +675,26 @@ Get a specific field::
9177, 9177,
3797, 3797,
2384, 2384,
4209,
4190, 4190,
4209,
383, 383,
4301,
4179, 4179,
1166, 1166,
4269,
4068, 4068,
1192, 1192,
3872, 3872,
4229, 4301,
4061, 4061,
4600, 4600,
4079, 4079,
4229,
3988, 3988,
2385, 2385,
4102, 4102,
4269,
1186, 1186,
4186, 4186,
3791, 3791,
4200,
3998, 3998,
3817, 3817,
3861, 3861,
@ -705,25 +704,26 @@ Get a specific field::
4197, 4197,
3836, 3836,
4195, 4195,
4200,
1182, 1182,
1202, 1202,
16161, 16161,
1150, 1150,
1168, 1168,
1151, 1151,
1380,
4083,
4013, 4013,
4083,
1380,
4003, 4003,
1038, 1038,
1155, 1155,
1446, 1446,
19463,
1230, 1230,
18958,
3778, 3778,
4546, 4546,
1143, 1143,
19003, 19493,
2062, 2062,
2201, 2201,
2112, 2112,
@ -877,17 +877,14 @@ Get a specific field::
13786, 13786,
13855, 13855,
14103, 14103,
14107,
14128, 14128,
14134, 14134,
14135, 14135,
16158, 16158,
16256, 16256,
16973, 16973,
17132,
17385,
18159, 18159,
18550]} 19193]}
Get a specific item when field matchs the given value:: Get a specific item when field matchs the given value::
@ -900,18 +897,18 @@ Get a specific item when field matchs the given value::
'--vrde', '--vrde',
'config'], 'config'],
'cpu_percent': 0.0, 'cpu_percent': 0.0,
'cpu_times': [82.82, 951.49, 0.0, 0.0, 0.0], 'cpu_times': [88.06, 1004.53, 0.0, 0.0, 0.0],
'gids': [1000, 1000, 1000], 'gids': [1000, 1000, 1000],
'io_counters': [0, 0, 0, 0, 0], 'io_counters': [0, 0, 0, 0, 0],
'key': 'pid', 'key': 'pid',
'memory_info': [964993024, 'memory_info': [964915200,
4202561536, 4202561536,
926556160, 926478336,
53248, 53248,
0, 0,
98004992, 98004992,
0], 0],
'memory_percent': 12.29446943525409, 'memory_percent': 12.293477920532704,
'name': 'VBoxHeadless', 'name': 'VBoxHeadless',
'nice': 0, 'nice': 0,
'num_threads': 28, 'num_threads': 28,
@ -935,69 +932,69 @@ GET quicklook
Get plugin stats:: Get plugin stats::
# curl http://localhost:61208/api/3/quicklook # curl http://localhost:61208/api/3/quicklook
{'cpu': 43.9, {'cpu': 44.9,
'cpu_hz': 3000000000.0, 'cpu_hz': 3000000000.0,
'cpu_hz_current': 2582499.9999999995, 'cpu_hz_current': 2472500.0,
'cpu_name': 'Intel(R) Core(TM) i7-4500U CPU @ 1.80GHz', 'cpu_name': 'Intel(R) Core(TM) i7-4500U CPU @ 1.80GHz',
'mem': 87.0, 'mem': 87.7,
'percpu': [{'cpu_number': 0, 'percpu': [{'cpu_number': 0,
'guest': 0.0, 'guest': 0.0,
'guest_nice': 0.0, 'guest_nice': 0.0,
'idle': 54.0, 'idle': 40.0,
'iowait': 0.0, 'iowait': 0.0,
'irq': 0.0, 'irq': 0.0,
'key': 'cpu_number', 'key': 'cpu_number',
'nice': 0.0, 'nice': 1.0,
'softirq': 0.0, 'softirq': 0.0,
'steal': 0.0, 'steal': 0.0,
'system': 6.0, 'system': 8.0,
'total': 46.0, 'total': 60.0,
'user': 21.0}, 'user': 46.0},
{'cpu_number': 1, {'cpu_number': 1,
'guest': 0.0, 'guest': 0.0,
'guest_nice': 0.0, 'guest_nice': 0.0,
'idle': 61.0, 'idle': 55.0,
'iowait': 0.0, 'iowait': 0.0,
'irq': 0.0, 'irq': 0.0,
'key': 'cpu_number', 'key': 'cpu_number',
'nice': 1.0, 'nice': 1.0,
'softirq': 0.0, 'softirq': 0.0,
'steal': 0.0, 'steal': 0.0,
'system': 12.0, 'system': 6.0,
'total': 39.0, 'total': 45.0,
'user': 9.0}, 'user': 29.0},
{'cpu_number': 2, {'cpu_number': 2,
'guest': 0.0, 'guest': 0.0,
'guest_nice': 0.0, 'guest_nice': 0.0,
'idle': 43.0, 'idle': 70.0,
'iowait': 0.0,
'irq': 0.0,
'key': 'cpu_number',
'nice': 1.0,
'softirq': 0.0,
'steal': 0.0,
'system': 8.0,
'total': 30.0,
'user': 13.0},
{'cpu_number': 3,
'guest': 0.0,
'guest_nice': 0.0,
'idle': 39.0,
'iowait': 0.0, 'iowait': 0.0,
'irq': 0.0, 'irq': 0.0,
'key': 'cpu_number', 'key': 'cpu_number',
'nice': 0.0, 'nice': 0.0,
'softirq': 0.0, 'softirq': 1.0,
'steal': 0.0, 'steal': 0.0,
'system': 11.0, 'system': 19.0,
'total': 57.0, 'total': 61.0,
'user': 27.0}, 'user': 33.0}],
{'cpu_number': 3, 'swap': 2.4}
'guest': 0.0,
'guest_nice': 0.0,
'idle': 26.0,
'iowait': 0.0,
'irq': 0.0,
'key': 'cpu_number',
'nice': 1.0,
'softirq': 0.0,
'steal': 0.0,
'system': 7.0,
'total': 74.0,
'user': 49.0}],
'swap': 2.3}
Get a specific field:: Get a specific field::
# curl http://localhost:61208/api/3/quicklook/cpu # curl http://localhost:61208/api/3/quicklook/cpu
{'cpu': 43.9} {'cpu': 44.9}
GET sensors GET sensors
----------- -----------
@ -1068,7 +1065,7 @@ GET uptime
Get plugin stats:: Get plugin stats::
# curl http://localhost:61208/api/3/uptime # curl http://localhost:61208/api/3/uptime
{'seconds': 197853} {'seconds': 198010}
GET all stats GET all stats
------------- -------------
@ -1084,33 +1081,33 @@ GET stats history
History of a plugin:: History of a plugin::
# curl http://localhost:61208/api/3/cpu/history # curl http://localhost:61208/api/3/cpu/history
{'system': [['2022-04-10T15:50:28.031262', 12.1], {'system': [['2022-04-10T15:53:04.470357', 14.2],
['2022-04-10T15:50:29.075471', 12.1], ['2022-04-10T15:53:05.515631', 14.2],
['2022-04-10T15:50:30.175356', 12.1]], ['2022-04-10T15:53:06.601141', 11.0]],
'user': [['2022-04-10T15:50:28.031256', 30.7], 'user': [['2022-04-10T15:53:04.470351', 33.3],
['2022-04-10T15:50:29.075468', 30.7], ['2022-04-10T15:53:05.515624', 33.3],
['2022-04-10T15:50:30.175351', 5.8]]} ['2022-04-10T15:53:06.601136', 13.3]]}
Limit history to last 2 values:: Limit history to last 2 values::
# curl http://localhost:61208/api/3/cpu/history/2 # curl http://localhost:61208/api/3/cpu/history/2
{'system': [['2022-04-10T15:50:29.075471', 12.1], {'system': [['2022-04-10T15:53:05.515631', 14.2],
['2022-04-10T15:50:30.175356', 12.1]], ['2022-04-10T15:53:06.601141', 11.0]],
'user': [['2022-04-10T15:50:29.075468', 30.7], 'user': [['2022-04-10T15:53:05.515624', 33.3],
['2022-04-10T15:50:30.175351', 5.8]]} ['2022-04-10T15:53:06.601136', 13.3]]}
History for a specific field:: History for a specific field::
# curl http://localhost:61208/api/3/cpu/system/history # curl http://localhost:61208/api/3/cpu/system/history
{'system': [['2022-04-10T15:50:28.031262', 12.1], {'system': [['2022-04-10T15:53:04.470357', 14.2],
['2022-04-10T15:50:29.075471', 12.1], ['2022-04-10T15:53:05.515631', 14.2],
['2022-04-10T15:50:30.175356', 12.1]]} ['2022-04-10T15:53:06.601141', 11.0]]}
Limit history for a specific field to last 2 values:: Limit history for a specific field to last 2 values::
# curl http://localhost:61208/api/3/cpu/system/history # curl http://localhost:61208/api/3/cpu/system/history
{'system': [['2022-04-10T15:50:29.075471', 12.1], {'system': [['2022-04-10T15:53:05.515631', 14.2],
['2022-04-10T15:50:30.175356', 12.1]]} ['2022-04-10T15:53:06.601141', 11.0]]}
GET limits (used for thresholds) GET limits (used for thresholds)
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