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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 Mon Feb 09, 2026 00:46:33)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1148943	2	3257	3238,10	sleep5	0	-21	swapper/5	19:05:40	5
1148943	2	3257	3238,10	sleep5	0	-21	swapper/5	19:05:39	5
1149644	99	163	84,44	cyclictest	1431584	-21	kworker/u12:0+events_unbound@ flush_memcg_stats_dwork	00:23:38	0
1149644	99	113	80,21	cyclictest	691	50	irq/529-eth0-Tx	00:30:36	0
1149644	99	109	62,18	cyclictest	0	-21	swapper/0	23:02:52	0
1149644	99	109	41,21	cyclictest	0	-21	swapper/0	23:07:40	0
1149644	99	108	66,16	cyclictest	0	-21	swapper/0	23:45:42	0
1149644	99	108	66,16	cyclictest	0	-21	swapper/0	23:45:42	0
1149644	99	106	1,81	cyclictest	0	-21	swapper/0	19:40:43	0
1149644	99	106	1,81	cyclictest	0	-21	swapper/0	19:40:42	0
1149647	99	104	84,7	cyclictest	1396123	-21	kworker/u12:1+events_unbound@ flush_memcg_stats_dwork	00:05:34	1
1149664	99	103	96,3	cyclictest	0	-21	swapper/5	22:42:34	5
1149644	99	101	1,77	cyclictest	0	-21	swapper/0	20:12:09	0
1149644	99	101	1,77	cyclictest	0	-21	swapper/0	20:12:08	0
1149644	99	101	1,60	cyclictest	0	-21	swapper/0	20:35:41	0
1149647	99	90	77,6	cyclictest	1342556	-21	kworker/u12:3+events_unbound@ flush_memcg_stats_dwork	23:12:56	1
1149644	99	87	67,6	cyclictest	1190402	-21	kworker/u12:2+events_unbound@ flush_memcg_stats_dwork	21:25:52	0
1149644	99	87	57,7	cyclictest	1159609	-21	kworker/u12:0+events_unbound@ flush_memcg_stats_dwork	20:50:36	0
1149644	99	87	1,76	cyclictest	0	-21	swapper/0	20:20:19	0
1149644	99	87	1,76	cyclictest	0	-21	swapper/0	20:00:19	0
1312106	2	86	0,5	sleep1	0	-21	swapper/1	22:41:27	1
1149664	99	86	81,2	cyclictest	0	-21	swapper/5	00:25:35	5
1149664	99	86	81,2	cyclictest	0	-21	swapper/5	00:25:34	5
1149656	99	86	74,6	cyclictest	1279302	-21	kworker/u12:3+events_unbound@ flush_memcg_stats_dwork	22:27:34	3
1149656	99	86	74,6	cyclictest	1279302	-21	kworker/u12:3+events_unbound@ flush_memcg_stats_dwork	22:27:33	3
1149644	99	86	1,73	cyclictest	0	-21	swapper/0	22:30:17	0
1149644	99	86	1,73	cyclictest	0	-21	swapper/0	21:35:35	0
1204273	2	85	0,5	sleep3	0	-21	swapper/3	21:15:41	3
1204273	2	85	0,5	sleep3	0	-21	swapper/3	21:15:41	3
1149644	99	85	1,70	cyclictest	0	-21	swapper/0	21:59:57	0
1149644	99	85	1,68	cyclictest	1428558	-21	/usr/sbin/munin	00:15:23	0
1149644	99	85	12,37	cyclictest	0	-21	swapper/0	23:25:31	0
1149644	99	84	67,4	cyclictest	689	50	irq/527-eth0-Tx	22:21:45	0
1149644	99	84	1,71	cyclictest	0	-21	swapper/0	19:25:35	0
1149664	99	83	75,4	cyclictest	0	-21	swapper/5	21:32:02	5
1149652	99	83	66,8	cyclictest	1431584	-21	kworker/u12:0+events_unbound@ flush_memcg_stats_dwork	00:23:36	2
1149644	99	83	62,7	cyclictest	1252335	-21	kworker/u12:1+events_unbound@ flush_memcg_stats_dwork	22:06:39	0
1149644	99	83	59,15	cyclictest	689	50	irq/527-eth0-Tx	21:41:57	0
1149644	99	83	1,78	cyclictest	0	-21	swapper/0	20:40:35	0
1149644	99	83	1,68	cyclictest	0	-21	swapper/0	19:35:35	0
1149644	99	83	1,67	cyclictest	0	-21	swapper/0	19:45:28	0
1149664	99	82	76,3	cyclictest	0	-21	swapper/5	19:45:34	5
1149652	99	82	67,7	cyclictest	1194598	-21	kworker/u12:1+events_unbound@ flush_memcg_stats_dwork	21:35:35	2
1149644	99	82	65,4	cyclictest	690	50	irq/528-eth0-Tx	22:51:54	0
1149644	99	82	56,14	cyclictest	0	-21	swapper/0	00:36:03	0
1149644	99	82	1,68	cyclictest	0	-21	swapper/0	20:55:37	0
1149664	99	81	74,3	cyclictest	0	-21	swapper/5	20:55:25	5
1149656	99	81	68,7	cyclictest	1423953	-21	kworker/u12:3+events_unbound@ flush_memcg_stats_dwork	00:16:00	3
1149644	99	81	61,7	cyclictest	1190402	-21	kworker/u12:2+events_unbound@ flush_memcg_stats_dwork	21:03:35	0
1149644	99	81	44,19	cyclictest	0	-21	swapper/0	20:05:34	0
1149644	99	81	2,66	cyclictest	0	-21	swapper/0	22:12:15	0
1149644	99	81	1,67	cyclictest	0	-21	swapper/0	23:41:40	0
1149644	99	81	1,66	cyclictest	1330852	-21	taskset	22:56:42	0
1149664	99	80	72,4	cyclictest	0	-21	swapper/5	23:11:01	5
1149656	99	80	67,7	cyclictest	1320796	-21	kworker/u12:2+events_unbound@ flush_memcg_stats_dwork	23:20:49	3
1149647	99	80	56,8	cyclictest	1207807	-21	kworker/u12:0+events_unbound@ flush_memcg_stats_dwork	21:27:19	1
1149644	99	80	1,67	cyclictest	0	-21	swapper/0	22:47:42	0
1149664	99	79	72,3	cyclictest	0	-21	swapper/5	21:49:35	5
1149664	99	79	72,3	cyclictest	0	-21	swapper/5	19:20:38	5
1149661	99	79	60,14	cyclictest	1243880	-21	chrt	21:47:14	4
1149647	99	79	66,7	cyclictest	1159609	-21	kworker/u12:0+events_unbound@ flush_memcg_stats_dwork	20:12:56	1
1149647	99	79	66,7	cyclictest	1159609	-21	kworker/u12:0+events_unbound@ flush_memcg_stats_dwork	20:12:56	1
1149644	99	79	60,4	cyclictest	689	50	irq/527-eth0-Tx	23:31:48	0
1149644	99	79	55,15	cyclictest	690	50	irq/528-eth0-Tx	21:50:06	0
1149644	99	79	55,15	cyclictest	690	50	irq/528-eth0-Tx	21:20:23	0
1149644	99	79	55,15	cyclictest	690	50	irq/528-eth0-Tx	21:20:23	0
1149644	99	79	24,38	cyclictest	0	-21	swapper/0	22:35:19	0
1149644	99	79	1,65	cyclictest	0	-21	swapper/0	23:20:28	0
1149644	99	79	1,56	cyclictest	0	-21	swapper/0	23:35:13	0
1149664	99	78	73,2	cyclictest	0	-21	swapper/5	21:52:25	5
1149644	99	78	7,68	cyclictest	142	50	irq/98-imx_mu_c	22:00:41	0
1149644	99	78	7,68	cyclictest	142	50	irq/98-imx_mu_c	22:00:40	0
1149644	99	78	4,50	cyclictest	1208970	-21	latency_hist	21:20:01	0
1149644	99	78	4,50	cyclictest	1208970	-21	latency_hist	21:20:01	0
1149644	99	78	1,64	cyclictest	0	-21	swapper/0	22:26:55	0
1149644	99	78	1,64	cyclictest	0	-21	swapper/0	22:26:55	0
1149644	99	78	1,55	cyclictest	0	-21	swapper/0	23:50:09	0
1149644	99	78	1,55	cyclictest	0	-21	swapper/0	23:50:08	0
1149664	99	77	72,2	cyclictest	0	-21	swapper/5	21:35:39	5
1149661	99	77	72,2	cyclictest	0	-21	swapper/4	20:48:29	4
1149644	99	77	55,14	cyclictest	690	50	irq/528-eth0-Tx	21:32:21	0
1149644	99	77	1,73	cyclictest	0	-21	swapper/0	23:55:36	0
1149644	99	77	1,51	cyclictest	0	-21	swapper/0	19:55:36	0
1149644	99	77	1,51	cyclictest	0	-21	swapper/0	19:55:36	0
1149664	99	76	70,3	cyclictest	0	-21	swapper/5	00:05:06	5
1149661	99	76	67,5	cyclictest	1368610	-21	ssh	23:26:56	4
1149652	99	76	65,5	cyclictest	1149387	-21	kworker/u12:2+events_unbound@ flush_memcg_stats_dwork	19:23:48	2
1149644	99	76	54,5	cyclictest	1201117	-21	ssh	21:13:05	0
1149644	99	76	50,14	cyclictest	689	50	irq/527-eth0-Tx	00:25:19	0
1149644	99	76	50,14	cyclictest	689	50	irq/527-eth0-Tx	00:25:18	0
1149644	99	76	37,15	cyclictest	0	-21	swapper/0	00:03:49	0
1149644	99	76	2,55	cyclictest	1418745	-21	ssh	00:07:08	0
1149656	99	75	62,6	cyclictest	1155367	-21	kworker/u12:3+events_unbound@ flush_memcg_stats_dwork	19:26:56	3
1149656	99	75	61,7	cyclictest	1252335	-21	kworker/u12:1+events_unbound@ flush_memcg_stats_dwork	22:02:45	3
1149656	99	75	61,7	cyclictest	1252335	-21	kworker/u12:1+events_unbound@ flush_memcg_stats_dwork	22:02:45	3
1149652	99	75	61,7	cyclictest	1396123	-21	kworker/u12:1+events_unbound@ flush_memcg_stats_dwork	00:25:06	2
1149652	99	75	61,7	cyclictest	1396123	-21	kworker/u12:1+events_unbound@ flush_memcg_stats_dwork	00:25:06	2
1149644	99	75	60,4	cyclictest	690	50	irq/528-eth0-Tx	19:15:10	0
1149644	99	75	44,16	cyclictest	0	-21	swapper/0	20:25:02	0
1149644	99	75	2,60	cyclictest	1166714	-21	ntpq	19:50:29	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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