OSADL QA Farm on Real-time of Mainline Linux

About - Hardware - CPUs - Benchmarks - Graphics - Benchmarks - Kernels - Boards/Distros - Latency monitoring - Latency plots - System data - Profiles - Compare - Awards

Default latency plot of system in rack #7, slot #2

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
Compare latency of primary with shadow system

Characteristics of the 100 highest latencies:

System rack7slot2.osadl.org (updated Sun Feb 15, 2026 00:44:10)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
33073	99	124	117,5	cyclictest	63589	-21	kworker/u4:17+events_unbound	21:32:59	0
33074	99	116	108,6	cyclictest	148227	-21	kworker/u4:15+events_unbound	22:48:15	1
33074	99	111	94,7	cyclictest	100810	-21	kworker/u4:0+events_unbound	21:58:08	1
33073	99	108	98,7	cyclictest	143832	-21	kworker/u4:1+events_unbound	22:43:13	0
33073	99	104	89,13	cyclictest	207303	-21	kworker/u4:6+events_unbound	00:08:25	0
33073	99	103	96,5	cyclictest	53407	-21	kworker/u4:11+events_unbound	21:17:56	0
33073	99	101	93,5	cyclictest	113847	-21	kworker/u4:9+events_unbound	22:23:11	0
33073	99	96	88,6	cyclictest	63587	-21	kworker/u4:15+events_unbound	21:23:00	0
33073	99	94	87,5	cyclictest	118212	-21	kworker/u4:3+events_unbound	22:38:13	0
33073	99	91	78,6	cyclictest	79555	-21	kworker/u4:8+events_unbound	21:27:59	0
33073	99	90	29,47	cyclictest	0	-21	swapper/0	19:10:00	0
33073	99	89	82,5	cyclictest	164860	-21	kworker/u4:10+events_unbound	23:18:18	0
33074	99	88	80,6	cyclictest	30598	-21	kworker/u4:1+events_unbound	19:12:37	1
33073	99	88	82,4	cyclictest	83335	-21	kworker/u4:10+events_unbound	22:08:08	0
33073	99	86	78,6	cyclictest	190677	-21	kworker/u4:3+events_unbound	23:38:22	0
33074	99	85	78,5	cyclictest	24471	-21	kworker/u4:0+events_unbound	19:32:40	1
33073	99	84	76,6	cyclictest	130683	-21	kworker/u4:14+events_unbound	22:28:10	0
33073	99	81	73,5	cyclictest	113847	-21	kworker/u4:9+events_unbound	22:18:09	0
33074	99	79	72,5	cyclictest	3846976	-21	kworker/u4:5+events_unbound	20:12:47	1
33073	99	78	70,6	cyclictest	194386	-21	kworker/u4:10+events_unbound	23:48:23	0
33073	99	76	68,6	cyclictest	211645	-21	kworker/u4:3+events_unbound	00:03:25	0
33074	99	75	67,6	cyclictest	44556	-21	kworker/u4:2+events_unbound	21:07:56	1
33073	99	72	65,5	cyclictest	40763	-21	kworker/u4:17+events_unbound	19:42:43	0
33073	99	72	62,4	cyclictest	31815	-21	kworker/u4:10+events_unbound	19:15:01	0
33073	99	71	59,5	cyclictest	57197	-21	kworker/u4:1+events_unbound	20:47:53	0
33073	99	71	50,16	cyclictest	196610	-21	latency_hist	23:45:02	0
33073	99	70	57,6	cyclictest	38254	-21	kworker/u4:14+events_unbound	19:47:44	0
33073	99	70	57,6	cyclictest	228903	-21	kworker/u4:2+events_unbound	00:23:29	0
33073	99	69	62,5	cyclictest	113847	-21	kworker/u4:9+events_unbound	22:33:10	0
33073	99	69	56,6	cyclictest	48350	-21	kworker/u4:3+events_unbound	20:27:50	0
33074	99	68	59,7	cyclictest	169972	-21	systemd	23:13:17	1
33073	99	68	61,5	cyclictest	38253	-21	kworker/u4:9+events_unbound	19:27:40	0
33073	99	67	48,6	cyclictest	232595	-21	kworker/u4:3+events_unbound	00:27:59	0
33073	99	66	58,6	cyclictest	3846976	-21	kworker/u4:5+events_unbound	20:52:54	0
33073	99	66	58,6	cyclictest	215952	-21	kworker/u4:7+events_unbound	00:18:27	0
33073	99	65	51,5	cyclictest	156855	-21	kworker/u4:2+events_unbound	23:12:59	0
33073	99	64	53,8	cyclictest	148227	-21	kworker/u4:15+events_unbound	23:00:02	0
33073	99	62	54,6	cyclictest	44556	-21	kworker/u4:2+events_unbound	20:22:50	0
33074	99	61	45,7	cyclictest	143832	-21	kworker/u4:1+events_unbound	22:43:59	1
33073	99	61	53,6	cyclictest	63987	-21	aten2__	21:10:16	0
33073	99	61	43,6	cyclictest	100811	-21	kworker/u4:3+events_unbound	21:54:44	0
33074	99	60	42,7	cyclictest	31816	-21	kworker/u4:12+events_unbound	19:23:02	1
33074	99	59	49,8	cyclictest	314	-21	systemd-journal	00:13:26	1
33074	99	59	43,7	cyclictest	198688	-21	kworker/u4:15+events_unbound	00:07:44	1
33073	99	59	52,5	cyclictest	190677	-21	kworker/u4:3+events_unbound	23:53:00	0
33073	99	59	52,5	cyclictest	190677	-21	kworker/u4:3+events_unbound	23:52:59	0
33073	99	59	48,9	cyclictest	139425	-21	kworker/u4:4+events_unbound	22:45:15	0
33073	99	59	39,17	cyclictest	35736	-21	cron	19:19:59	0
33074	99	58	51,4	cyclictest	0	-21	swapper/1	20:45:11	1
33074	99	58	50,6	cyclictest	62330	-21	kworker/u4:10+events_unbound	21:11:43	1
33074	99	58	42,5	cyclictest	31815	-21	kworker/u4:10+events_unbound	19:37:04	1
33074	99	58	41,11	cyclictest	0	-21	swapper/1	23:55:02	1
33074	99	58	41,11	cyclictest	0	-21	swapper/1	23:55:01	1
33073	99	58	37,5	cyclictest	103199	-21	fschecks_count	21:55:19	0
33074	99	57	49,6	cyclictest	172000	-21	/usr/sbin/munin	23:15:27	1
33074	99	57	48,7	cyclictest	165749	-21	systemd	23:08:15	1
33074	99	57	46,7	cyclictest	0	-21	swapper/1	23:35:37	1
33073	99	57	43,8	cyclictest	164858	-21	kworker/u4:8+events_unbound	23:08:58	0
33074	99	56	39,10	cyclictest	0	-21	swapper/1	20:34:59	1
33074	99	55	43,9	cyclictest	0	-21	swapper/1	22:50:28	1
33073	99	55	34,7	cyclictest	92103	-21	kworker/u4:3+events_unbound	21:45:18	0
33073	99	55	34,7	cyclictest	92103	-21	kworker/u4:3+events_unbound	21:45:17	0
33074	99	54	47,5	cyclictest	38254	-21	kworker/u4:14+events_unbound	19:51:45	1
33074	99	54	47,5	cyclictest	24471	-21	kworker/u4:0+events_unbound	19:49:44	1
33074	99	54	47,5	cyclictest	137734	-21	/usr/sbin/munin	22:35:21	1
33074	99	54	38,6	cyclictest	48352	-21	kworker/u4:15+events_unbound	20:09:43	1
33073	99	54	46,5	cyclictest	87699	-21	kworker/u4:1+events_unbound	22:03:08	0
33073	99	54	41,6	cyclictest	220244	-21	kworker/u4:8+events_unbound	00:36:34	0
33073	99	54	40,9	cyclictest	179492	-21	kworker/u4:0	23:24:59	0
33074	99	53	46,5	cyclictest	73537	-21	/usr/sbin/munin	21:20:36	1
33074	99	53	45,6	cyclictest	230733	-21	munin-node	00:25:12	1
33074	99	53	44,6	cyclictest	115422	-21	awk	22:10:00	1
33073	99	53	46,5	cyclictest	236899	-21	kworker/u4:9+events_unbound	00:35:01	0
33073	99	53	46,5	cyclictest	220242	-21	kworker/u4:4+events_unbound	00:13:45	0
33074	99	52	45,5	cyclictest	156856	-21	kworker/u4:4+events_unbound	22:59:59	1
33073	99	52	47,4	cyclictest	164857	-21	kworker/u4:7+events_unbound	23:27:00	0
33073	99	52	45,5	cyclictest	57198	-21	kworker/u4:3+events_unbound	20:42:51	0
33073	99	52	32,5	cyclictest	115957	-21	ssh	22:10:18	0
33074	99	51	43,6	cyclictest	184469	-21	gltestperf	23:30:21	1
33074	99	51	42,6	cyclictest	0	-21	swapper/1	23:55:13	1
33074	99	51	42,6	cyclictest	0	-21	swapper/1	23:55:12	1
33073	99	51	35,6	cyclictest	207304	-21	kworker/u4:8+events_unbound	23:57:00	0
33073	99	51	35,6	cyclictest	207304	-21	kworker/u4:8+events_unbound	23:57:00	0
33073	99	51	31,18	cyclictest	0	-21	swapper/0	21:05:18	0
33074	99	50	43,5	cyclictest	77952	-21	/usr/sbin/munin	21:25:37	1
33074	99	50	43,5	cyclictest	48352	-21	kworker/u4:15+events_unbound	20:18:02	1
33074	99	50	43,5	cyclictest	232596	-21	kworker/u4:5+events_unbound	00:33:00	1
33074	99	50	42,6	cyclictest	31815	-21	kworker/u4:10+events_unbound	20:02:59	1
33074	99	50	42,6	cyclictest	129847	-21	awk	22:25:43	1
33074	99	50	40,7	cyclictest	128412	-21	latency_hist	22:25:01	1
33074	99	50	29,17	cyclictest	27	1	ktimers/1	23:05:01	1
33073	99	50	43,5	cyclictest	40763	-21	kworker/u4:17+events_unbound	19:57:44	0
33073	99	50	43,5	cyclictest	159293	-21	/usr/sbin/munin	23:00:27	0
33074	99	49	42,5	cyclictest	52153	-21	kworker/u4:8+events_unbound	20:57:43	1
33074	99	49	35,12	cyclictest	0	-21	swapper/1	22:00:28	1
33073	99	49	42,5	cyclictest	90543	-21	/usr/sbin/munin	21:40:23	0
33073	99	49	41,6	cyclictest	54663	-21	kworker/u4:13+events_unbound	20:37:50	0
33073	99	49	41,5	cyclictest	186091	-21	ssh	23:31:53	0
33073	99	49	24,8	cyclictest	63589	-21	kworker/u4:17+events_unbound	21:35:31	0
33074	99	48	42,4	cyclictest	192907	-21	fschecks_count	23:40:20	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


Access: public		Short link to this page
This page was last modified on 2019-05-28 - 00:17