OSADL QA Farm on Real-time of Mainline Linux

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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 highest latencies:

System rack7slot2.osadl.org (updated Thu Nov 27, 2025 00:44:10)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
703226	99	140	130,7	cyclictest	734782	-21	kworker/u4:14+events_unbound	21:36:50	0
703226	99	139	120,6	cyclictest	725705	-21	kworker/u4:7+events_unbound	21:26:51	0
703226	99	128	113,12	cyclictest	725705	-21	kworker/u4:7+events_unbound	21:21:49	0
703226	99	126	119,5	cyclictest	796308	-21	kworker/u4:9+events_unbound	22:32:03	0
703226	99	126	118,6	cyclictest	726988	-21	kworker/u4:9+events_unbound	20:51:45	0
703226	99	118	109,7	cyclictest	750890	-21	kworker/u4:6+events_unbound	21:31:51	0
703226	99	116	109,5	cyclictest	699393	-21	kworker/u4:4+events_unbound	19:26:27	0
703226	99	113	104,6	cyclictest	873793	-21	kworker/u4:5+events_unbound	00:08:03	0
703226	99	111	102,6	cyclictest	898531	-21	kworker/u4:0+events_unbound	00:38:53	0
703226	99	106	99,5	cyclictest	865612	-21	kworker/u4:0+events_unbound	00:02:54	0
703226	99	102	94,6	cyclictest	787948	-21	kworker/u4:3+events_unbound	22:16:58	0
703226	99	98	90,6	cyclictest	824806	-21	kworker/u4:8+events_unbound	23:02:06	0
703226	99	97	89,6	cyclictest	787951	-21	kworker/u4:7+events_unbound	22:37:04	0
703226	99	97	88,7	cyclictest	881414	-21	kworker/u4:6+events_unbound	00:34:05	0
703226	99	97	79,6	cyclictest	849152	-21	kworker/u4:11+events_unbound	23:37:13	0
703226	99	95	87,6	cyclictest	725684	-21	kworker/u4:2+events_unbound	20:46:45	0
703226	99	94	86,6	cyclictest	795724	-21	kworker/u4:8+events_unbound	22:27:02	0
703226	99	93	84,7	cyclictest	783744	-21	kworker/u4:18+events_unbound	22:42:06	0
703228	99	90	85,3	cyclictest	891917	-21	kworker/u4:10+events_unbound	00:33:24	1
703228	99	88	38,40	cyclictest	798319	-21	aten2__	22:30:18	1
703226	99	88	81,5	cyclictest	881414	-21	kworker/u4:6+events_unbound	00:13:47	0
703226	99	87	79,6	cyclictest	824807	-21	kworker/u4:9+events_unbound	23:07:08	0
703226	99	85	69,14	cyclictest	771854	-21	kworker/u4:13+events_unbound	22:10:01	0
703226	99	83	71,5	cyclictest	824804	-21	kworker/u4:6+events_unbound	23:46:15	0
703228	99	82	74,6	cyclictest	824804	-21	kworker/u4:6+events_unbound	23:42:15	1
703228	99	82	74,6	cyclictest	824804	-21	kworker/u4:6+events_unbound	23:42:15	1
703228	99	80	33,29	cyclictest	872686	-21	ssh	00:00:39	1
703226	99	80	72,6	cyclictest	722619	-21	kworker/u4:18+events_unbound	20:26:40	0
703226	99	77	61,8	cyclictest	759310	-21	kworker/u4:10+events_unbound	21:45:01	0
703228	99	75	26,28	cyclictest	0	-21	swapper/1	22:05:13	1
703226	99	74	66,6	cyclictest	705848	-21	kworker/u4:5+events_unbound	19:25:01	0
703228	99	73	40,28	cyclictest	837267	-21	kworker/u4:5-rpciod	23:25:29	1
703228	99	73	2,18	cyclictest	744795	-21	ssh	21:25:13	1
703228	99	72	62,7	cyclictest	869689	-21	kworker/u4:8+events_unbound	23:57:47	1
703226	99	72	62,6	cyclictest	703161	-21	kworker/u4:1+xprtiod	19:10:09	0
703226	99	71	46,13	cyclictest	257	50	irq/23-42890000.ethernet	23:15:08	0
703226	99	70	63,5	cyclictest	722619	-21	kworker/u4:18+events_unbound	20:56:47	0
703226	99	70	63,5	cyclictest	720018	-21	kworker/u4:1+events_unbound	20:21:39	0
703228	99	69	55,11	cyclictest	37	-21	kcompactd0	22:58:04	1
703228	99	69	55,11	cyclictest	37	-21	kcompactd0	22:58:04	1
703228	99	68	59,6	cyclictest	767658	-21	kworker/u4:7+events_unbound	21:56:59	1
703226	99	68	54,5	cyclictest	734782	-21	kworker/u4:14+events_unbound	21:20:00	0
703228	99	67	6,55	cyclictest	733366	-21	ssh	21:10:33	1
703228	99	67	6,55	cyclictest	733366	-21	ssh	21:10:32	1
703228	99	67	60,5	cyclictest	728273	-21	kworker/u4:3+events_unbound	21:01:48	1
703228	99	67	60,5	cyclictest	728273	-21	kworker/u4:3+events_unbound	21:01:47	1
703228	99	67	55,9	cyclictest	750887	-21	kworker/u4:3+events_unbound	21:36:54	1
703228	99	67	43,22	cyclictest	703225	-21	cyclictest	23:37:12	1
703226	99	67	60,5	cyclictest	704554	-21	kworker/u4:6+events_unbound	19:17:01	0
703226	99	67	57,7	cyclictest	783744	-21	kworker/u4:18+events_unbound	22:57:05	0
703226	99	67	57,7	cyclictest	783744	-21	kworker/u4:18+events_unbound	22:57:05	0
703228	99	66	32,30	cyclictest	0	-21	swapper/1	19:55:01	1
703228	99	65	57,6	cyclictest	888954	-21	kworker/u4:0+events_unbound	00:23:21	1
703228	99	65	56,6	cyclictest	705847	-21	kworker/u4:3+events_unbound	19:46:31	1
703228	99	64	32,28	cyclictest	0	-21	swapper/1	22:15:33	1
703228	99	64	3,17	cyclictest	848262	-21	ps	23:30:37	1
703228	99	64	31,31	cyclictest	782288	-21	gltestperf	22:10:22	1
703228	99	63	58,3	cyclictest	869692	-21	kworker/u4:11+events_unbound	00:18:14	1
703228	99	63	58,3	cyclictest	869692	-21	kworker/u4:11+events_unbound	00:18:14	1
703228	99	63	54,6	cyclictest	724089	-21	kworker/u4:1+events_unbound	20:36:43	1
703228	99	63	4,20	cyclictest	822800	-21	ssh	23:00:11	1
703226	99	63	43,15	cyclictest	53	-21	kswapd0	23:10:09	0
703228	99	62	7,52	cyclictest	0	-21	swapper/1	21:40:14	1
703228	99	62	3,7	cyclictest	741314	-21	ssh	21:20:23	1
703228	99	62	3,55	cyclictest	761294	-21	ssh	21:45:13	1
703228	99	62	31,28	cyclictest	0	-21	swapper/1	22:45:33	1
703228	99	61	44,5	cyclictest	796308	-21	kworker/u4:9+events_unbound	22:42:04	1
703228	99	61	2,6	cyclictest	732275	-21	munin-run	21:10:01	1
703228	99	61	17,40	cyclictest	27	1	ktimers/1	22:20:27	1
703228	99	61	1,12	cyclictest	721536	-21	apt-get	20:20:10	1
703228	99	60	30,28	cyclictest	0	-21	swapper/1	21:30:40	1
703228	99	60	27,29	cyclictest	0	-21	swapper/1	00:25:27	1
703228	99	60	26,32	cyclictest	0	-21	swapper/1	22:40:01	1
703228	99	60	2,16	cyclictest	880173	-21	ps	00:10:36	1
703228	99	60	16,39	cyclictest	864397	-21	ssh	23:50:35	1
703226	99	60	53,5	cyclictest	712304	-21	kworker/u4:7+events_unbound	19:45:01	0
703228	99	59	4,17	cyclictest	777489	-21	ssh	22:05:01	1
703228	99	59	27,29	cyclictest	0	-21	swapper/1	23:10:23	1
703228	99	59	27,29	cyclictest	0	-21	swapper/1	21:15:30	1
703228	99	59	25,31	cyclictest	835539	-21	gltestperf	23:15:24	1
703228	99	59	23,31	cyclictest	0	-21	swapper/1	00:35:38	1
703228	99	59	1,15	cyclictest	727798	-21	ntpq	20:50:28	1
703228	99	59	1,14	cyclictest	814654	-21	apt-get	22:50:16	1
703228	99	59	1,14	cyclictest	814654	-21	apt-get	22:50:16	1
703228	99	58	51,5	cyclictest	699395	-21	kworker/u4:8+events_unbound	20:11:38	1
703228	99	58	50,6	cyclictest	712305	-21	kworker/u4:10+events_unbound	19:56:34	1
703228	99	58	25,29	cyclictest	0	-21	swapper/1	23:45:31	1
703228	99	58	2,18	cyclictest	827681	-21	ssh	23:05:31	1
703228	99	58	2,12	cyclictest	797981	-21	ssh	22:30:00	1
703228	99	57	47,7	cyclictest	37	-21	kcompactd0	00:05:12	1
703228	99	57	4,5	cyclictest	716947	-21	ntpq	20:00:29	1
703228	99	57	3,19	cyclictest	840039	-21	ps	23:20:37	1
703228	99	57	2,14	cyclictest	766223	-21	ntpq	21:50:32	1
703228	99	57	2,10	cyclictest	703469	-21	apt-get	19:10:20	1
703228	99	56	46,7	cyclictest	699395	-21	kworker/u4:8+events_unbound	19:21:27	1
703228	99	56	30,21	cyclictest	725704	-21	kworker/u4:5-rpciod	20:45:42	1
703228	99	56	27,26	cyclictest	0	-21	swapper/1	19:36:28	1
703228	99	56	27,26	cyclictest	0	-21	swapper/1	19:36:28	1
703228	99	56	1,14	cyclictest	718126	-21	irqstats	20:05:21	1
703228	99	55	2,7	cyclictest	729044	-21	ntpq	20:55:25	1
703228	99	55	2,6	cyclictest	703272	-21	sed	19:10:01	1
703228	99	55	24,28	cyclictest	0	-21	swapper/1	19:40:18	1
703228	99	55	13,39	cyclictest	723581	-21	ntpq	20:30:20	1
703228	99	55	13,36	cyclictest	721459	-21	latency_hist	20:20:01	1
703228	99	55	1,11	cyclictest	707353	-21	apt-get	19:25:14	1
703226	99	55	48,5	cyclictest	774051	-21	fschecks_time	22:00:23	0
703228	99	54	9,42	cyclictest	1060	-21	snmpd	19:16:11	1
703228	99	54	3,6	cyclictest	708633	-21	apt-get	19:30:12	1
703226	99	54	47,5	cyclictest	887003	-21	/usr/sbin/munin	00:20:18	0
703226	99	54	47,5	cyclictest	791188	-21	timerandwakeup	22:20:38	0
703226	99	54	46,6	cyclictest	720012	-21	systemd	20:11:37	0
703226	99	53	46,5	cyclictest	839110	-21	/usr/sbin/munin	23:20:10	0
703226	99	53	33,12	cyclictest	257	50	irq/23-42890000.ethernet	20:40:08	0
703226	99	53	32,6	cyclictest	0	-21	swapper/0	21:55:20	0
703226	99	53	32,19	cyclictest	867844	-21	df_abs	23:55:17	0
703226	99	53	32,15	cyclictest	0	-21	swapper/0	23:40:19	0
703226	99	53	32,15	cyclictest	0	-21	swapper/0	23:40:19	0
703226	99	52	45,5	cyclictest	881410	-21	kworker/u4:2+events_unbound	00:25:17	0
703228	99	51	2,7	cyclictest	724609	-21	apt-get	20:40:22	1
703226	99	51	46,4	cyclictest	705849	-21	kworker/u4:9+events_unbound	19:35:37	0
703226	99	51	46,4	cyclictest	705849	-21	kworker/u4:9+events_unbound	19:35:37	0
703228	99	48	1,11	cyclictest	1060	-21	snmpd	20:27:04	1
703226	99	48	42,4	cyclictest	847073	-21	idleruntime-cro	23:30:00	0
703226	99	48	2,11	cyclictest	0	-21	swapper/0	21:05:10	0
703226	99	47	42,3	cyclictest	759310	-21	kworker/u4:10+events_unbound	21:51:57	0
703226	99	47	39,6	cyclictest	716697	-21	fschecks_time	20:00:21	0
703226	99	46	40,4	cyclictest	818423	-21	munin-run	22:55:00	0
703226	99	46	40,4	cyclictest	818423	-21	munin-run	22:55:00	0
703226	99	46	38,6	cyclictest	847666	-21	fschecks_count	23:30:21	0
703226	99	46	36,7	cyclictest	811793	-21	/usr/sbin/munin	22:45:40	0
703226	99	45	38,4	cyclictest	0	-21	swapper/0	23:50:35	0
703226	99	45	37,5	cyclictest	877633	-21	kworker/u4:15-rpciod	00:18:14	0
703226	99	45	37,5	cyclictest	877633	-21	kworker/u4:15-rpciod	00:18:14	0
703226	99	44	37,5	cyclictest	713811	-21	aten2__	19:50:16	0
703226	99	44	36,6	cyclictest	732992	-21	gltestperf	21:10:20	0
703226	99	44	36,6	cyclictest	732992	-21	gltestperf	21:10:20	0
703226	99	44	33,8	cyclictest	709733	-21	modprobe	19:35:00	0
703226	99	44	29,9	cyclictest	0	-21	swapper/0	21:05:00	0
703226	99	44	29,9	cyclictest	0	-21	swapper/0	21:05:00	0
703226	99	43	31,5	cyclictest	710996	-21	kworker/u4:14+events_unbound	20:05:05	0
703226	99	43	23,17	cyclictest	0	-21	swapper/0	22:10:40	0
703226	99	43	17,23	cyclictest	761360	-21	hostname	21:45:16	0
703226	99	41	34,5	cyclictest	715335	-21	fschecks_count	19:55:21	0
703226	99	41	32,6	cyclictest	0	-21	swapper/0	20:30:19	0
703226	99	41	31,7	cyclictest	0	-21	swapper/0	19:45:27	0
703226	99	40	34,4	cyclictest	720020	-21	kworker/u4:4-rpciod	20:15:18	0
703226	99	40	33,5	cyclictest	724348	-21	munin-run	20:40:00	0
703226	99	37	30,5	cyclictest	0	-21	swapper/0	19:10:02	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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