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Default latency plot of system in rack #e, slot #6

Click here to display the system's profile data or here to proceed to next system.

Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.
Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system

Characteristics of the 100 highest latencies:

System rackeslot6.osadl.org (updated Mon Oct 13, 2025 12:44:50)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
220808	99	133	120,10	cyclictest	310760	-21	latency_hist	11:50:00	1
220808	99	124	112,9	cyclictest	235326	-21	latency_hist	07:55:01	1
220808	99	120	113,4	cyclictest	288491	-21	kworker/u8:2+flush-179:0	11:00:16	1
220807	99	115	102,10	cyclictest	299848	-21	apt-get	11:15:17	0
220808	99	110	97,9	cyclictest	224398	-21	kworker/u8:2+events_unbound	07:25:24	1
220808	99	109	105,3	cyclictest	226417	-21	kworker/u8:0+events_unbound	07:55:25	1
220807	99	109	102,5	cyclictest	226417	-21	kworker/u8:0+flush-179:0	07:40:26	0
220807	99	107	97,7	cyclictest	269117	-21	kworker/u8:1+flush-179:0	10:00:03	0
220807	99	106	100,5	cyclictest	226417	-21	kworker/u8:0+flush-179:0	07:35:02	0
220808	99	105	81,21	cyclictest	256355	-21	kworker/u8:3+flush-179:0	09:20:00	1
220807	99	105	95,7	cyclictest	285255	-21	latency_hist	10:30:01	0
220808	99	102	95,5	cyclictest	269117	-21	kworker/u8:1+events_unbound	10:15:01	1
220807	99	102	91,8	cyclictest	305252	-21	kworker/u8:2+events_unbound	11:45:16	0
220807	99	101	93,5	cyclictest	314218	-21	latency_hist	12:00:01	0
220807	99	100	93,5	cyclictest	237433	-21	kworker/u8:3+events_unbound	08:35:01	0
220807	99	100	92,6	cyclictest	298262	-21	apt-get	11:10:14	0
220808	99	99	93,4	cyclictest	300136	-21	kworker/u8:0+events_unbound	11:20:26	1
220808	99	99	92,4	cyclictest	269117	-21	kworker/u8:1+events_unbound	10:55:25	1
220807	99	97	88,7	cyclictest	307621	-21	kworker/u8:1+flush-179:0	12:19:56	0
220807	99	97	88,6	cyclictest	288491	-21	kworker/u8:2+events_unbound	10:50:28	0
220808	99	94	83,9	cyclictest	601706	-21	systemd-journal	07:45:01	1
220807	99	94	88,4	cyclictest	262728	-21	kworker/u8:0+events_unbound	09:55:01	0
220808	99	91	83,5	cyclictest	305963	-21	kworker/u8:3+flush-179:0	11:35:19	1
220808	99	91	81,7	cyclictest	262728	-21	kworker/u8:0+events_unbound	09:50:22	1
220807	99	91	85,5	cyclictest	220719	-21	kworker/u8:1+flush-179:0	07:15:01	0
220807	99	91	83,6	cyclictest	245146	-21	kworker/u8:1+flush-179:0	09:25:01	0
220808	99	90	73,15	cyclictest	232137	-21	kworker/u8:2+flush-179:0	08:10:00	1
220807	99	90	82,6	cyclictest	307621	-21	kworker/u8:1+flush-179:0	12:25:20	0
220808	99	89	82,6	cyclictest	307621	-21	kworker/u8:1+flush-179:0	12:10:00	1
220808	99	89	81,5	cyclictest	294843	-21	kworker/u8:3+events_unbound	11:10:23	1
220808	99	89	80,7	cyclictest	248325	-21	kworker/u8:2+flush-179:0	08:35:29	1
220808	99	89	80,7	cyclictest	245146	-21	kworker/u8:1+flush-179:0	09:05:00	1
220807	99	89	80,6	cyclictest	601706	-21	systemd-journal	07:20:16	0
220808	99	88	83,4	cyclictest	249984	-21	kworker/u8:0+events_unbound	08:50:18	1
220808	99	88	82,5	cyclictest	269117	-21	kworker/u8:1+flush-179:0	10:35:25	1
220808	99	88	75,10	cyclictest	222525	-21	/usr/sbin/munin	07:15:24	1
220807	99	88	81,5	cyclictest	256355	-21	kworker/u8:3+events_unbound	09:30:01	0
220807	99	88	80,6	cyclictest	269117	-21	kworker/u8:1+flush-179:0	10:35:23	0
220807	99	88	78,7	cyclictest	319242	-21	latency_hist	12:15:00	0
220808	99	87	72,5	cyclictest	305252	-21	kworker/u8:2+events_unbound	12:00:01	1
220807	99	86	77,6	cyclictest	277270	-21	kworker/u8:0+flush-179:0	10:05:23	0
220808	99	85	79,4	cyclictest	269117	-21	kworker/u8:1+events_unbound	11:25:28	1
220807	99	85	79,4	cyclictest	305963	-21	kworker/u8:3+events_unbound	11:40:00	0
220807	99	85	52,32	cyclictest	722	-21	Xorg	08:18:59	0
220813	99	84	54,28	cyclictest	0	-21	swapper/3	08:58:59	3
220808	99	84	79,3	cyclictest	277270	-21	kworker/u8:0+events_unbound	10:05:26	1
220808	99	84	77,5	cyclictest	224398	-21	kworker/u8:2+flush-179:0	07:25:00	1
220807	99	84	77,5	cyclictest	305963	-21	kworker/u8:3+events_unbound	11:40:26	0
220808	99	83	78,4	cyclictest	307621	-21	kworker/u8:1+flush-179:0	12:10:25	1
220808	99	83	72,5	cyclictest	288491	-21	kworker/u8:2+events_unbound	10:45:00	1
220808	99	82	75,4	cyclictest	307621	-21	kworker/u8:1+flush-179:0	12:20:13	1
220807	99	81	74,6	cyclictest	305252	-21	kworker/u8:2+events_unbound	12:00:03	0
220808	99	80	75,4	cyclictest	305252	-21	kworker/u8:2+flush-179:0	11:50:18	1
220808	99	80	75,3	cyclictest	305963	-21	kworker/u8:3+flush-179:0	11:40:16	1
220808	99	80	75,3	cyclictest	228959	-21	kworker/u8:1+flush-179:0	07:35:16	1
220808	99	80	74,4	cyclictest	217717	-21	kworker/u8:3+events_unbound	07:45:17	1
220807	99	80	74,5	cyclictest	305252	-21	kworker/u8:2+events_unbound	11:50:01	0
220807	99	80	72,6	cyclictest	601706	-21	systemd-journal	09:00:00	0
220807	99	80	72,5	cyclictest	262728	-21	kworker/u8:0+events_unbound	09:45:14	0
220807	99	79	72,4	cyclictest	228959	-21	kworker/u8:1+flush-179:0	07:35:23	0
220807	99	79	69,7	cyclictest	270660	-21	latency_hist	09:45:01	0
220807	99	79	68,8	cyclictest	307621	-21	kworker/u8:1+flush-179:0	12:05:14	0
220808	99	78	73,4	cyclictest	269117	-21	kworker/u8:1+flush-179:0	10:00:23	1
220807	99	78	72,5	cyclictest	249984	-21	kworker/u8:0+events_unbound	08:45:24	0
220807	99	78	71,6	cyclictest	601706	-21	systemd-journal	09:10:27	0
220807	99	78	71,5	cyclictest	248325	-21	kworker/u8:2+events_unbound	08:35:27	0
220807	99	78	69,7	cyclictest	324005	-21	kworker/u8:0+flush-179:0	12:35:28	0
220807	99	78	68,7	cyclictest	277270	-21	kworker/u8:0+flush-179:0	10:10:13	0
220807	99	78	62,6	cyclictest	282125	-21	kworker/u8:3+events_unbound	10:30:15	0
220808	99	77	70,5	cyclictest	294843	-21	kworker/u8:3+flush-179:0	11:05:20	1
220807	99	77	71,4	cyclictest	226417	-21	kworker/u8:0+flush-179:0	07:55:21	0
220808	99	76	71,4	cyclictest	256355	-21	kworker/u8:3+flush-179:0	09:34:56	1
220808	99	76	70,4	cyclictest	245146	-21	kworker/u8:1+flush-179:0	09:05:14	1
220808	99	76	70,4	cyclictest	237433	-21	kworker/u8:3+flush-179:0	08:30:20	1
220807	99	76	69,5	cyclictest	232137	-21	kworker/u8:2+flush-179:0	08:05:16	0
220808	99	75	70,4	cyclictest	269117	-21	kworker/u8:1+flush-179:0	10:45:26	1
220808	99	75	70,4	cyclictest	256355	-21	kworker/u8:3+events_unbound	09:35:18	1
220808	99	75	69,4	cyclictest	245146	-21	kworker/u8:1+flush-179:0	09:25:20	1
220807	99	75	66,7	cyclictest	220719	-21	kworker/u8:1+flush-179:0	07:20:01	0
220807	99	75	62,10	cyclictest	601706	-21	systemd-journal	08:05:01	0
220808	99	74	69,4	cyclictest	235823	-21	kworker/u8:1+flush-179:0	08:15:27	1
220808	99	74	67,4	cyclictest	300136	-21	kworker/u8:0+events_unbound	11:15:25	1
220807	99	74	66,6	cyclictest	249984	-21	kworker/u8:0+events_unbound	08:50:33	0
220808	99	73	67,4	cyclictest	259538	-21	kworker/u8:2+flush-179:0	09:10:21	1
220808	99	73	66,6	cyclictest	262728	-21	kworker/u8:0+events_unbound	09:45:00	1
220808	99	73	66,5	cyclictest	282336	-21	apt-get	10:20:11	1
220808	99	73	66,5	cyclictest	224398	-21	kworker/u8:2+flush-179:0	07:30:15	1
220807	99	73	63,8	cyclictest	267457	-21	latency_hist	09:35:01	0
220808	99	72	68,3	cyclictest	240399	-21	kworker/u8:0+flush-179:0	08:10:25	1
220808	99	72	67,4	cyclictest	237433	-21	kworker/u8:3+flush-179:0	08:25:25	1
220808	99	72	65,5	cyclictest	262728	-21	kworker/u8:0+events_unbound	09:45:18	1
220808	99	72	62,7	cyclictest	245162	-21	latency_hist	08:25:00	1
220808	99	72	61,8	cyclictest	220673	-21	latency_hist	07:10:03	1
220807	99	72	63,6	cyclictest	288491	-21	kworker/u8:2+events_unbound	11:00:13	0
220808	99	71	66,3	cyclictest	324005	-21	kworker/u8:0+events_unbound	12:35:13	1
220807	99	71	64,6	cyclictest	269117	-21	kworker/u8:1+events_unbound	10:00:00	0
220808	99	70	64,4	cyclictest	245146	-21	kworker/u8:1+flush-179:0	08:55:25	1
220807	99	70	63,5	cyclictest	249984	-21	kworker/u8:0+events_unbound	08:40:13	0
220807	99	70	62,7	cyclictest	245146	-21	kworker/u8:1+events_unbound	09:20:00	0
220807	99	69	61,6	cyclictest	235823	-21	kworker/u8:1+events_unbound	08:10:17	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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This page was last modified on 2020-10-04 - 12:21