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 highest latencies:

System rack7slot2.osadl.org (updated Sun Jan 25, 2026 12:44:11)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
843766	99	111	102,6	cyclictest	1045277	-21	kworker/u4:7+events_unbound	12:30:00	1
843764	99	98	90,6	cyclictest	920473	-21	kworker/u4:4+events_unbound	10:19:33	0
843764	99	95	87,6	cyclictest	907170	-21	kworker/u4:9+events_unbound	09:59:31	0
843764	99	93	73,10	cyclictest	54	-21	kswapd0	10:55:10	0
843764	99	93	64,22	cyclictest	54	-21	kswapd0	12:15:11	0
843764	99	93	64,22	cyclictest	54	-21	kswapd0	12:15:10	0
843764	99	91	84,5	cyclictest	853822	-21	kworker/u4:8+events_unbound	08:24:09	0
843764	99	91	83,6	cyclictest	976979	-21	kworker/u4:5+events_unbound	11:19:53	0
843764	99	90	82,6	cyclictest	976981	-21	kworker/u4:8+events_unbound	11:24:53	0
843764	99	89	82,5	cyclictest	938072	-21	kworker/u4:7+events_unbound	10:29:34	0
843766	99	88	81,5	cyclictest	1019824	-21	kworker/u4:8+events_unbound	12:25:00	1
843766	99	86	35,39	cyclictest	1026210	-21	aten_r7power_po	12:05:17	1
843764	99	85	78,5	cyclictest	847519	-21	kworker/u4:10+events_unbound	07:44:05	0
843764	99	85	78,5	cyclictest	847519	-21	kworker/u4:10+events_unbound	07:44:04	0
843764	99	85	71,6	cyclictest	871576	-21	kworker/u4:11+events_unbound	09:25:00	0
843766	99	84	33,39	cyclictest	0	-21	swapper/1	12:35:29	1
843764	99	82	75,5	cyclictest	1049589	-21	kworker/u4:11+events_unbound	12:35:00	0
843766	99	81	29,36	cyclictest	0	-21	swapper/1	11:30:33	1
843766	99	80	72,6	cyclictest	1036554	-21	kworker/u4:17+events_unbound	12:20:00	1
843766	99	80	72,6	cyclictest	1036554	-21	kworker/u4:17+events_unbound	12:20:00	1
843766	99	79	25,38	cyclictest	0	-21	swapper/1	09:25:38	1
843764	99	78	70,6	cyclictest	1011179	-21	kworker/u4:1+events_unbound	12:04:58	0
843766	99	77	71,4	cyclictest	946846	-21	kworker/u4:11+events_unbound	10:34:51	1
843766	99	76	71,3	cyclictest	903374	-21	kworker/u4:6+events_unbound	10:54:46	1
843766	99	75	23,37	cyclictest	0	-21	swapper/1	10:15:38	1
843764	99	75	71,2	cyclictest	929263	-21	kworker/u4:14+events_unbound	10:49:45	0
843764	99	75	59,7	cyclictest	889986	-21	kworker/u4:8+events_unbound	09:29:26	0
843766	99	74	25,31	cyclictest	1009153	-21	cpu	11:45:16	1
843766	99	74	25,31	cyclictest	1009153	-21	cpu	11:45:15	1
843764	99	74	39,28	cyclictest	0	-21	swapper/0	09:05:09	0
843766	99	72	5,53	cyclictest	884060	-21	ssh	09:20:24	1
843764	99	72	61,8	cyclictest	918830	-21	fschecks_count	10:00:20	0
843766	99	69	25,26	cyclictest	0	-21	swapper/1	11:00:27	1
843764	99	69	46,16	cyclictest	54	-21	kswapd0	11:50:07	0
843766	99	68	3,38	cyclictest	903742	-21	ssh	09:42:56	1
843766	99	68	2,62	cyclictest	919386	-21	ps	10:00:37	1
843766	99	68	24,26	cyclictest	0	-21	swapper/1	10:55:36	1
843764	99	68	57,5	cyclictest	907170	-21	kworker/u4:9+events_unbound	10:15:01	0
843764	99	68	49,6	cyclictest	938071	-21	kworker/u4:5+events_unbound	11:01:43	0
843766	99	67	3,38	cyclictest	908519	-21	ssh	09:48:35	1
843766	99	67	3,36	cyclictest	1049707	-21	ssh	12:32:15	1
843766	99	67	2,40	cyclictest	882270	-21	ssh	09:18:47	1
843766	99	67	21,26	cyclictest	0	-21	swapper/1	10:35:24	1
843766	99	67	1,40	cyclictest	1033831	-21	ssh	12:14:15	1
843766	99	66	31,32	cyclictest	918210	-21	latency_hist	10:00:01	1
843766	99	66	2,40	cyclictest	977249	-21	ssh	11:07:38	1
843766	99	66	2,39	cyclictest	1025291	-21	ssh	12:04:16	1
843766	99	66	2,38	cyclictest	994035	-21	ssh	11:27:04	1
843766	99	66	2,38	cyclictest	937256	-21	ssh	10:20:54	1
843766	99	66	2,37	cyclictest	925881	-21	ssh	10:08:31	1
843766	99	66	1,40	cyclictest	943488	-21	ssh	10:28:57	1
843766	99	66	1,40	cyclictest	1008428	-21	ssh	11:44:35	1
843766	99	66	1,38	cyclictest	37	-21	kcompactd0	09:50:48	1
843764	99	66	47,6	cyclictest	924878	-21	kworker/u4:7+events_unbound	10:08:00	0
843766	99	65	3,37	cyclictest	899334	-21	ssh	09:37:56	1
843766	99	65	2,38	cyclictest	1019417	-21	ssh	11:56:38	1
843766	99	65	1,41	cyclictest	893065	-21	ld	09:30:35	1
843766	99	65	1,38	cyclictest	980458	-21	ssh	11:10:52	1
843766	99	65	1,38	cyclictest	864777	-21	ntpq	08:30:32	1
843764	99	65	47,10	cyclictest	0	-21	swapper/0	10:35:10	0
843764	99	64	58,4	cyclictest	844968	-21	kworker/u4:0+events_unbound	07:49:06	0
843766	99	63	53,8	cyclictest	856343	-21	systemd	07:59:05	1
843766	99	63	53,8	cyclictest	856343	-21	systemd	07:59:04	1
843766	99	63	3,34	cyclictest	853338	-21	ntpq	07:45:25	1
843766	99	63	1,37	cyclictest	959714	-21	ssh	10:47:10	1
843764	99	63	49,7	cyclictest	976981	-21	kworker/u4:8+events_unbound	11:09:49	0
843766	99	62	2,37	cyclictest	984068	-21	ntpq	11:15:31	1
843766	99	62	1,36	cyclictest	863460	-21	ntpq	08:25:26	1
843764	99	62	42,16	cyclictest	54	-21	kswapd0	09:50:15	0
843766	99	61	5,51	cyclictest	988308	-21	ntpq	11:20:27	1
843766	99	60	1,35	cyclictest	878416	-21	ssh	09:14:42	1
843766	99	59	2,53	cyclictest	953903	-21	ntpq	10:40:29	1
843764	99	59	52,5	cyclictest	844968	-21	kworker/u4:0+events_unbound	07:39:04	0
843764	99	59	51,6	cyclictest	993777	-21	kworker/u4:4+events_unbound	11:34:54	0
843766	99	58	49,7	cyclictest	855086	-21	systemd	07:54:04	1
843766	99	58	13,27	cyclictest	857032	-21	irqstats	08:00:24	1
843764	99	58	51,5	cyclictest	889987	-21	kworker/u4:9+events_unbound	09:35:02	0
843764	99	58	50,6	cyclictest	1011182	-21	kworker/u4:5+events_unbound	11:49:55	0
843764	99	58	50,6	cyclictest	1011182	-21	kworker/u4:5+events_unbound	11:49:54	0
843764	99	58	41,7	cyclictest	863929	-21	kworker/u4:10+events_unbound	09:42:48	0
843764	99	58	40,6	cyclictest	903375	-21	kworker/u4:8+events_unbound	09:46:00	0
843766	99	57	28,26	cyclictest	0	-21	swapper/1	11:50:46	1
843766	99	57	25,29	cyclictest	870229	-21	kworker/u4:5+rpciod	08:55:00	1
843766	99	57	2,32	cyclictest	1068	-21	snmpd	07:18:04	1
843766	99	57	1,49	cyclictest	847721	-21	apt-get	07:25:11	1
843766	99	57	1,34	cyclictest	871205	-21	ps	08:55:40	1
843764	99	57	51,4	cyclictest	1011180	-21	kworker/u4:3+events_unbound	12:10:04	0
843766	99	56	28,25	cyclictest	981351	-21	kworker/u4:10-rpciod	11:35:28	1
843766	99	56	2,51	cyclictest	860891	-21	ntpq	08:15:23	1
843764	99	56	45,5	cyclictest	847521	-21	kworker/u4:12+events_unbound	07:50:02	0
843766	99	55	3,49	cyclictest	873732	-21	ntpq	09:05:30	1
843766	99	55	3,46	cyclictest	865986	-21	ntpq	08:35:27	1
843766	99	55	3,46	cyclictest	858461	-21	ntpq	08:05:32	1
843766	99	55	2,50	cyclictest	844526	-21	ntpq	07:10:26	1
843766	99	55	2,48	cyclictest	852085	-21	ntpq	07:40:26	1
843766	99	55	2,48	cyclictest	852085	-21	ntpq	07:40:25	1
843766	99	55	23,28	cyclictest	0	-21	swapper/1	10:10:19	1
843766	99	55	23,28	cyclictest	0	-21	swapper/1	08:25:01	1
843766	99	55	1,50	cyclictest	872430	-21	ntpq	09:00:31	1
843764	99	55	48,5	cyclictest	976979	-21	kworker/u4:5+events_unbound	11:25:59	0
843764	99	55	47,6	cyclictest	866437	-21	kworker/u4:6+events_unbound	08:44:13	0
843764	99	55	40,6	cyclictest	894442	-21	kworker/u4:5+events_unbound	09:37:00	0
843764	99	55	38,7	cyclictest	898884	-21	kworker/u4:3+events_unbound	10:23:53	0
843764	99	55	38,12	cyclictest	54	-21	kswapd0	10:30:11	0
843764	99	55	33,15	cyclictest	15	1	ktimers/0	11:55:27	0
843764	99	54	49,4	cyclictest	955041	-21	kworker/u4:9+events_unbound	10:51:58	0
843764	99	54	48,4	cyclictest	863929	-21	kworker/u4:10+events_unbound	09:19:59	0
843764	99	54	4,40	cyclictest	870269	-21	apt-get	08:55:09	0
843766	99	53	3,46	cyclictest	847060	-21	ntpq	07:20:27	1
843766	99	53	31,19	cyclictest	868111	-21	sed	08:45:16	1
843766	99	53	30,20	cyclictest	0	-21	swapper/1	08:15:00	1
843764	99	53	45,6	cyclictest	990072	-21	kworker/u4:0+events_unbound	11:39:00	0
843764	99	53	37,14	cyclictest	1047202	-21	ls	12:30:01	0
843766	99	52	2,45	cyclictest	850842	-21	ntpq	07:35:29	1
843766	99	51	2,47	cyclictest	849554	-21	ntpq	07:30:28	1
843764	99	51	44,5	cyclictest	841285	-21	kworker/u4:14+events_unbound	08:54:15	0
843764	99	51	42,6	cyclictest	847549	-21	sh	07:25:01	0
843766	99	50	1,45	cyclictest	867277	-21	ntpq	08:40:29	1
843764	99	50	42,6	cyclictest	976979	-21	kworker/u4:5+events_unbound	11:41:44	0
843764	99	50	38,5	cyclictest	1002465	-21	kworker/u4:11+events_unbound	12:09:00	0
843764	99	49	42,5	cyclictest	861315	-21	unixbench_multi	08:15:35	0
843764	99	49	19,12	cyclictest	878716	-21	sed	09:15:01	0
843764	99	48	42,4	cyclictest	857652	-21	latency_hist	08:05:00	0
843764	99	48	39,6	cyclictest	872969	-21	latency_hist	09:05:00	0
843764	99	48	28,18	cyclictest	0	-21	swapper/0	08:10:35	0
843764	99	47	40,5	cyclictest	858135	-21	fschecks_time	08:05:18	0
843764	99	47	39,6	cyclictest	866438	-21	kworker/u4:12+events_unbound	08:39:14	0
843764	99	46	38,5	cyclictest	845855	-21	grep	07:15:32	0
843764	99	45	37,6	cyclictest	868001	-21	aten_r7power_en	08:45:17	0
843764	99	45	37,6	cyclictest	855332	-21	aten_r7power_cu	07:55:14	0
843764	99	45	37,6	cyclictest	855332	-21	aten_r7power_cu	07:55:14	0
843764	99	45	37,5	cyclictest	976980	-21	kworker/u4:7-rpciod	11:10:18	0
843766	99	44	20,18	cyclictest	0	-21	swapper/1	07:10:01	1
843764	99	44	36,6	cyclictest	863167	-21	fschecks_time	08:25:18	0
843764	99	44	28,6	cyclictest	1049585	-21	kworker/u4:4+events_unbound	12:35:16	0
843764	99	43	36,5	cyclictest	1040939	-21	kworker/u4:1+events_unbound	12:24:01	0
843764	99	43	35,6	cyclictest	843948	-21	aten_r7power_cu	07:10:11	0
843764	99	42	33,6	cyclictest	953661	-21	gltestperf	10:40:21	0
843764	99	41	34,4	cyclictest	858870	-21	kworker/u4:3-rpciod	08:30:20	0
843764	99	41	33,5	cyclictest	849214	-21	fschecks_count	07:30:18	0
843764	99	39	33,4	cyclictest	841282	-21	kworker/u4:1-rpciod	07:25:19	0
843764	99	36	29,5	cyclictest	843774	-21	grep	07:10:02	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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