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Default latency plot of system in rack #3, slot #4

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.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance

Characteristics of the 100 highest latencies:

System rack3slot4.osadl.org (updated Wed Aug 19, 2026 12:46:36)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
28781	99	123	116,3	cyclictest	0	-21	swapper/5	11:58:55	5
28767	99	123	110,7	cyclictest	80139	-21	kworker/u12:3+events_unbound@ flush_memcg_stats_dwork	09:18:32	2
28767	99	115	101,7	cyclictest	119140	-21	kworker/u12:0+events_unbound@ flush_memcg_stats_dwork	10:03:38	2
28762	99	113	99,8	cyclictest	119140	-21	kworker/u12:0+events_unbound@ flush_memcg_stats_dwork	09:58:37	1
28758	99	107	27,32	cyclictest	300981	-21	ssh	12:00:11	0
28758	99	107	27,32	cyclictest	300981	-21	ssh	12:00:11	0
28762	99	106	93,6	cyclictest	246236	-21	kworker/u12:3+events_unbound@ flush_memcg_stats_dwork	12:08:58	1
28762	99	106	93,6	cyclictest	246236	-21	kworker/u12:3+events_unbound@ flush_memcg_stats_dwork	12:08:57	1
28758	99	106	42,30	cyclictest	673	50	irq/527-eth0-Tx	10:06:17	0
28767	99	105	91,7	cyclictest	77020	-21	kworker/u12:0+events_unbound@ flush_memcg_stats_dwork	09:23:32	2
28758	99	105	1,61	cyclictest	0	-21	swapper/0	10:20:39	0
28758	99	104	26,36	cyclictest	122936	-21	ssh	09:45:33	0
28758	99	104	26,36	cyclictest	122936	-21	ssh	09:45:33	0
28758	99	104	1,70	cyclictest	196609	-21	wc	10:40:43	0
28767	99	103	88,7	cyclictest	66983	-21	kworker/u12:1+events_unbound@ flush_memcg_stats_dwork	09:48:36	2
28767	99	103	88,7	cyclictest	66983	-21	kworker/u12:1+events_unbound@ flush_memcg_stats_dwork	09:48:36	2
28758	99	102	7,4	cyclictest	674	50	irq/528-eth0-Tx	11:55:32	0
28762	99	100	86,7	cyclictest	305181	-21	kworker/u12:1+events_unbound@ flush_memcg_stats_dwork	12:03:56	1
28762	99	100	86,7	cyclictest	305181	-21	kworker/u12:1+events_unbound@ flush_memcg_stats_dwork	12:03:56	1
28767	99	99	84,7	cyclictest	146546	-21	kworker/u12:3+events_unbound@ flush_memcg_stats_dwork	10:33:40	2
28767	99	99	84,7	cyclictest	146546	-21	kworker/u12:3+events_unbound@ flush_memcg_stats_dwork	10:33:40	2
28758	99	99	15,5	cyclictest	674	50	irq/528-eth0-Tx	09:55:39	0
28758	99	97	27,42	cyclictest	674	50	irq/528-eth0-Tx	09:15:01	0
28758	99	97	27,42	cyclictest	674	50	irq/528-eth0-Tx	09:15:01	0
28758	99	97	0,70	cyclictest	209291	-21	ntpq	10:50:31	0
28758	99	96	13,56	cyclictest	282465	-21	find	11:45:40	0
28781	99	95	88,3	cyclictest	0	-21	swapper/5	10:58:42	5
28758	99	95	2,28	cyclictest	96290	-21	runrttasks	09:25:30	0
28758	99	94	2,56	cyclictest	179258	-21	kworker/u12:2+rpciod@ rpc_async_schedule	11:05:24	0
28758	99	94	1,25	cyclictest	0	-21	swapper/0	11:20:28	0
28758	99	93	2,55	cyclictest	0	-21	swapper/0	12:30:24	0
28758	99	92	3,83	cyclictest	255708	-21	ssh	11:25:32	0
28758	99	92	1,62	cyclictest	0	-21	swapper/0	09:35:39	0
28767	99	91	78,6	cyclictest	325672	-21	kworker/u12:1+events_unbound@ flush_memcg_stats_dwork	12:23:58	2
28758	99	91	62,7	cyclictest	0	-21	swapper/0	10:45:35	0
28758	99	91	22,4	cyclictest	674	50	irq/528-eth0-Tx	10:33:46	0
28758	99	91	22,4	cyclictest	674	50	irq/528-eth0-Tx	10:33:45	0
249274	2	91	0,3	chrt	0	-21	swapper/5	11:20:38	5
28758	99	90	1,59	cyclictest	0	-21	swapper/0	12:37:13	0
28758	99	90	15,3	cyclictest	0	-21	swapper/0	09:20:43	0
28781	99	89	82,3	cyclictest	0	-21	swapper/5	11:33:51	5
28762	99	89	76,7	cyclictest	179258	-21	kworker/u12:2+events_unbound@ flush_memcg_stats_dwork	10:28:40	1
28762	99	89	76,7	cyclictest	179258	-21	kworker/u12:2+events_unbound@ flush_memcg_stats_dwork	10:28:39	1
28758	99	89	2,18	cyclictest	221755	-21	aten2_r3power_f	11:00:19	0
28758	99	89	2,18	cyclictest	221755	-21	aten2_r3power_f	11:00:18	0
28762	99	87	74,6	cyclictest	136875	-21	kworker/u12:1+events_unbound@ flush_memcg_stats_dwork	10:08:37	1
28758	99	87	9,54	cyclictest	676	50	irq/530-eth0-Tx	09:19:59	0
28758	99	87	23,3	cyclictest	0	-21	swapper/0	12:10:44	0
28758	99	86	8,13	cyclictest	0	-21	swapper/0	09:40:15	0
28758	99	86	6,5	cyclictest	673	50	irq/527-eth0-Tx	10:56:02	0
28758	99	86	16,34	cyclictest	269773	-21	ssh	11:35:47	0
28758	99	86	16,34	cyclictest	269773	-21	ssh	11:35:47	0
28758	99	86	12,5	cyclictest	102398	-21	ssh	09:30:20	0
95285	2	85	0,7	sleep4	95266	-21	ssh	09:25:12	4
28758	99	85	64,6	cyclictest	246236	-21	kworker/u12:3+events_unbound@ flush_memcg_stats_dwork	11:33:50	0
28758	99	85	23,5	cyclictest	307597	-21	/usr/sbin/munin	12:05:41	0
28758	99	85	23,5	cyclictest	307597	-21	/usr/sbin/munin	12:05:41	0
28758	99	85	14,5	cyclictest	176551	-21	cat	10:25:42	0
28758	99	85	14,5	cyclictest	176551	-21	cat	10:25:42	0
28767	99	84	69,7	cyclictest	179258	-21	kworker/u12:2+events_unbound@ flush_memcg_stats_dwork	10:52:45	2
28758	99	84	35,22	cyclictest	30398	-1	kworker/0:1H-events_highpri	07:40:32	0
28758	99	84	2,65	cyclictest	321949	-21	ldconfig	12:15:33	0
28758	99	84	1,67	cyclictest	39629	-21	/usr/sbin/munin	07:35:25	0
28758	99	84	1,3	cyclictest	0	-21	swapper/0	08:11:24	0
28781	99	83	77,2	cyclictest	0	-21	swapper/5	10:28:51	5
28781	99	83	77,2	cyclictest	0	-21	swapper/5	10:28:51	5
28758	99	83	28,26	cyclictest	676	50	irq/530-eth0-Tx	11:50:31	0
28767	99	82	68,6	cyclictest	347491	-21	kworker/u12:0+events_unbound@ flush_memcg_stats_dwork	12:39:02	2
28777	99	80	69,6	cyclictest	80525	-21	diskmemload-4	10:45:13	4
28781	99	79	73,3	cyclictest	0	-21	swapper/5	11:38:53	5
28781	99	79	73,3	cyclictest	0	-21	swapper/5	11:38:53	5
28781	99	79	73,3	cyclictest	0	-21	swapper/5	10:13:38	5
28781	99	79	73,3	cyclictest	0	-21	swapper/5	08:23:21	5
28781	99	79	73,3	cyclictest	0	-21	swapper/5	08:23:20	5
28781	99	77	71,3	cyclictest	0	-21	swapper/5	12:13:56	5
28781	99	77	71,3	cyclictest	0	-21	swapper/5	10:53:43	5
28781	99	76	70,3	cyclictest	0	-21	swapper/5	12:25:38	5
28762	99	76	60,8	cyclictest	60766	-21	kworker/u12:2+events_unbound@ flush_memcg_stats_dwork	08:28:21	1
28758	99	76	57,16	cyclictest	146546	-21	kworker/u12:3+events_unbound@ flush_memcg_stats_dwork	10:18:39	0
28781	99	75	69,3	cyclictest	0	-21	swapper/5	11:50:24	5
28781	99	75	67,4	cyclictest	0	-21	swapper/5	10:05:21	5
28767	99	74	62,6	cyclictest	28327	-21	kworker/u12:0+events_unbound@ flush_memcg_stats_dwork	07:16:46	2
28767	99	74	62,6	cyclictest	28327	-21	kworker/u12:0+events_unbound@ flush_memcg_stats_dwork	07:16:46	2
28767	99	74	59,7	cyclictest	325672	-21	kworker/u12:1+events_unbound@ flush_memcg_stats_dwork	12:18:59	2
28781	99	73	67,3	cyclictest	0	-21	swapper/5	09:45:10	5
28781	99	73	67,3	cyclictest	0	-21	swapper/5	09:45:10	5
28767	99	73	59,7	cyclictest	69538	-21	kworker/u12:2+events_unbound@ flush_memcg_stats_dwork	09:08:31	2
28758	99	72	16,3	cyclictest	0	-21	swapper/0	10:02:54	0
28781	99	71	65,2	cyclictest	0	-21	swapper/5	09:40:37	5
28758	99	71	39,16	cyclictest	0	-21	swapper/0	09:07:23	0
28758	99	71	1,65	cyclictest	55130	-21	/usr/sbin/munin	08:15:26	0
28758	99	71	1,18	cyclictest	0	-21	swapper/0	12:20:28	0
28758	99	71	11,50	cyclictest	676	50	irq/530-eth0-Tx	10:36:12	0
28758	99	71	1,14	cyclictest	0	-21	swapper/0	11:10:21	0
28781	99	70	64,3	cyclictest	0	-21	swapper/5	08:33:25	5
28781	99	70	64,3	cyclictest	0	-21	swapper/5	08:33:24	5
28771	99	70	55,7	cyclictest	48723	-21	kworker/u12:0+events_unbound@ flush_memcg_stats_dwork	08:03:16	3
28758	99	70	5,8	cyclictest	275050	-21	basename	11:40:23	0
28758	99	70	1,55	cyclictest	0	-21	swapper/0	10:13:18	0
28758	99	70	1,51	cyclictest	58869	-21	idleruntime-cro	08:25:00	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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This page was last modified on 2019-05-28 - 00:17