OSADL QA Farm on Real-time of Mainline Linux

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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 Sun Sep 13, 2026 00:46:22)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1089157	99	128	78,37	cyclictest	1098996	-21	kworker/u12:3+events_unbound@ flush_memcg_stats_dwork	20:00:11	0
1089157	99	123	75,35	cyclictest	674	50	irq/528-eth0-Tx	22:45:28	0
1089157	99	123	75,35	cyclictest	674	50	irq/528-eth0-Tx	22:45:27	0
1089157	99	122	2,84	cyclictest	0	-21	swapper/0	22:25:39	0
1089157	99	117	73,34	cyclictest	673	50	irq/527-eth0-Tx	21:00:23	0
1089157	99	117	20,86	cyclictest	1339157	-21	kworker/u12:3+events_unbound@ flush_memcg_stats_dwork	23:48:52	0
1089157	99	116	10,94	cyclictest	1113226	-21	kworker/u12:0+events_unbound@ flush_memcg_stats_dwork	20:45:25	0
1089157	99	113	69,34	cyclictest	674	50	irq/528-eth0-Tx	21:55:13	0
1089157	99	113	61,41	cyclictest	674	50	irq/528-eth0-Tx	22:34:56	0
1089157	99	112	3,59	cyclictest	1275610	-21	cpu	22:55:23	0
1089157	99	109	6,62	cyclictest	1322165	-21	grep	23:30:22	0
1089157	99	109	57,29	cyclictest	674	50	irq/528-eth0-Tx	21:10:35	0
1089157	99	108	68,17	cyclictest	674	50	irq/528-eth0-Tx	21:20:33	0
1089169	99	106	94,6	cyclictest	1372477	-21	kworker/u12:1+events_unbound@ flush_memcg_stats_dwork	00:13:23	2
1089157	99	106	66,5	cyclictest	1317766	-21	ssh	23:26:46	0
1089157	99	106	66,5	cyclictest	1317766	-21	ssh	23:26:46	0
1089157	99	106	54,29	cyclictest	674	50	irq/528-eth0-Tx	22:50:44	0
1089157	99	106	54,29	cyclictest	674	50	irq/528-eth0-Tx	22:50:43	0
1089157	99	106	2,7	cyclictest	1408684	-21	ssh	00:35:38	0
1089157	99	105	66,17	cyclictest	674	50	irq/528-eth0-Tx	23:03:26	0
1089157	99	105	65,17	cyclictest	674	50	irq/528-eth0-Tx	23:20:33	0
1089157	99	105	2,83	cyclictest	1222491	2	sleep0	22:15:17	0
1089157	99	104	55,27	cyclictest	673	50	irq/527-eth0-Tx	20:55:25	0
1089157	99	104	50,16	cyclictest	1216875	-21	ld	22:10:31	0
1089157	99	104	50,16	cyclictest	1216875	-21	ld	22:10:31	0
1089157	99	104	42,19	cyclictest	1267	-21	runrttasks	21:27:03	0
1089157	99	103	1,59	cyclictest	0	-21	swapper/0	00:20:06	0
1089157	99	101	69,15	cyclictest	145	50	irq/98-imx_mu_c	00:30:21	0
1089157	99	101	68,9	cyclictest	1119697	-21	aten2_r3power_f	20:25:19	0
1089157	99	101	65,4	cyclictest	0	-21	swapper/0	20:20:23	0
1089157	99	101	61,15	cyclictest	673	50	irq/527-eth0-Tx	00:05:19	0
1089157	99	101	61,15	cyclictest	673	50	irq/527-eth0-Tx	00:05:18	0
1089157	99	101	52,6	cyclictest	15	-21	rcuc/0	20:15:25	0
1089157	99	101	51,15	cyclictest	1111511	-21	/usr/sbin/munin	20:05:43	0
1089157	99	101	40,18	cyclictest	0	-21	swapper/0	23:42:11	0
1089157	99	101	2,5	cyclictest	1248805	-21	awk	22:35:13	0
1089157	99	99	63,4	cyclictest	674	50	irq/528-eth0-Tx	21:15:25	0
1089157	99	99	42,17	cyclictest	0	-21	swapper/0	19:45:33	0
1089157	99	99	1,62	cyclictest	0	-21	swapper/0	00:25:19	0
1089157	99	97	43,19	cyclictest	0	-21	swapper/0	19:30:17	0
1089178	99	96	90,3	cyclictest	0	-21	swapper/4	23:13:16	4
1089157	99	90	2,65	cyclictest	0	-21	swapper/0	23:15:34	0
1089157	99	90	2,5	cyclictest	1289674	-21	ssh	23:05:39	0
1089157	99	90	2,48	cyclictest	0	-21	swapper/0	20:10:29	0
1089157	99	89	43,18	cyclictest	0	-21	swapper/0	22:00:37	0
1089157	99	88	46,7	cyclictest	1084646	-21	kworker/0:1+events@ free_work	19:40:01	0
1089157	99	88	46,7	cyclictest	1084646	-21	kworker/0:1+events@ free_work	19:40:01	0
1089157	99	88	43,18	cyclictest	13	-21	ksoftirqd/0	00:15:47	0
1089157	99	88	1,50	cyclictest	0	-21	swapper/0	22:40:39	0
1089157	99	87	2,4	cyclictest	1090215	-21	ntpq	19:10:36	0
1089157	99	86	22,5	cyclictest	1329146	-21	ssh	23:35:31	0
1089169	99	85	73,6	cyclictest	1143742	-21	kworker/u12:3+events_unbound@ flush_memcg_stats_dwork	21:53:02	2
1089157	99	85	3,4	cyclictest	15	-21	rcuc/0	23:50:34	0
1089157	99	84	47,3	cyclictest	0	-21	swapper/0	20:50:39	0
1089157	99	83	54,3	cyclictest	0	-21	swapper/0	21:05:33	0
1089157	99	83	54,15	cyclictest	0	-21	swapper/0	21:50:36	0
1089157	99	83	47,16	cyclictest	0	-21	swapper/0	21:40:33	0
1089157	99	83	45,13	cyclictest	0	-21	swapper/0	19:15:33	0
1089157	99	83	43,4	cyclictest	0	-21	swapper/0	22:05:31	0
1089157	99	83	2,67	cyclictest	0	-21	swapper/0	19:50:21	0
1089178	99	82	76,3	cyclictest	0	-21	swapper/4	23:58:22	4
1089157	99	82	55,6	cyclictest	0	-21	swapper/0	20:35:39	0
1089157	99	82	53,4	cyclictest	676	50	irq/530-eth0-Tx	00:00:20	0
1089169	99	81	68,6	cyclictest	1282795	-21	kworker/u12:0+events_unbound@ flush_memcg_stats_dwork	23:04:46	2
1089157	99	81	40,14	cyclictest	0	-21	swapper/0	19:25:37	0
1089169	99	79	66,6	cyclictest	1352362	-21	kworker/u12:4+events_unbound@ flush_memcg_stats_dwork	00:31:03	2
1089169	99	79	64,7	cyclictest	1098996	-21	kworker/u12:3+events_unbound@ flush_memcg_stats_dwork	20:14:47	2
1089157	99	79	50,16	cyclictest	0	-21	swapper/0	21:30:15	0
1089157	99	79	50,16	cyclictest	0	-21	swapper/0	21:30:15	0
1089162	99	78	64,7	cyclictest	1212761	-21	kworker/u12:2+events_unbound@ flush_memcg_stats_dwork	22:18:09	1
1089157	99	78	68,5	cyclictest	142	50	irq/98-imx_mu_c	19:55:21	0
1089157	99	77	42,18	cyclictest	0	-21	swapper/0	21:35:45	0
1089182	99	76	70,3	cyclictest	0	-21	swapper/5	23:13:17	5
1089178	99	75	60,9	cyclictest	1365702	-21	ssh	00:03:24	4
1089157	99	75	1,31	cyclictest	1295518	-21	df_abs	23:10:22	0
1089182	99	74	68,3	cyclictest	0	-21	swapper/5	23:18:17	5
1089178	99	74	67,3	cyclictest	0	-21	swapper/4	23:32:41	4
1089178	99	72	63,4	cyclictest	0	-21	swapper/4	22:05:14	4
1089182	99	71	63,3	cyclictest	0	-21	swapper/5	00:20:34	5
1089157	99	71	2,5	cyclictest	0	-21	swapper/0	22:20:40	0
1089157	99	69	53,3	cyclictest	0	-21	swapper/0	00:10:35	0
1089157	99	69	49,3	cyclictest	0	-21	swapper/0	21:49:01	0
1089157	99	69	45,4	cyclictest	0	-21	swapper/0	19:40:38	0
1089182	99	68	63,2	cyclictest	0	-21	swapper/5	23:01:20	5
1089178	99	68	61,3	cyclictest	0	-21	swapper/4	21:33:01	4
1089178	99	68	61,3	cyclictest	0	-21	swapper/4	21:33:00	4
1089157	99	68	47,6	cyclictest	15	-21	rcuc/0	20:30:42	0
1089173	99	67	8,26	cyclictest	1137782	-21	latency_hist	21:10:01	3
1089169	99	67	53,7	cyclictest	1169291	-21	kworker/u12:1+events_unbound@ flush_memcg_stats_dwork	21:43:02	2
1392687	2	66	0,5	chrt	0	-21	swapper/3	00:23:58	3
1089182	99	66	61,3	cyclictest	0	-21	swapper/5	23:25:11	5
1089182	99	66	61,3	cyclictest	0	-21	swapper/5	23:25:11	5
1089182	99	66	60,3	cyclictest	0	-21	swapper/5	21:55:37	5
1089178	99	66	60,3	cyclictest	0	-21	swapper/4	22:03:05	4
1089169	99	66	52,7	cyclictest	1393695	-21	kworker/u12:0+events_unbound@ flush_memcg_stats_dwork	00:28:42	2
1089157	99	66	12,40	cyclictest	13	-21	ksoftirqd/0	23:55:41	0
1089157	99	65	36,8	cyclictest	1126554	-21	chrt	20:40:35	0
1089182	99	64	59,2	cyclictest	0	-21	swapper/5	22:45:18	5
1089182	99	64	59,2	cyclictest	0	-21	swapper/5	22:45:17	5
1089173	99	64	1,29	cyclictest	0	-21	swapper/3	23:34:59	3
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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