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 Mon Jun 22, 2026 12:44:08)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
3507588	99	110	101,6	cyclictest	3510080	-21	kworker/u4:1+events_unbound	08:10:12	1
3507588	99	107	89,7	cyclictest	3510079	-21	kworker/u4:0+events_unbound	08:50:39	1
3507588	99	99	88,8	cyclictest	3660692	-21	kworker/u4:1+events_unbound	11:30:59	1
3507588	99	97	88,6	cyclictest	3507513	-21	kworker/u4:4+events_unbound	08:00:08	1
3507588	99	95	75,6	cyclictest	3704422	-21	kworker/u4:12+events_unbound	12:26:12	1
3507588	99	94	86,6	cyclictest	3647374	-21	kworker/u4:4+events_unbound	11:36:00	1
3507588	99	86	77,7	cyclictest	3572461	-21	kworker/u4:1+events_unbound	09:50:00	1
3507588	99	84	78,4	cyclictest	3522960	-21	kworker/u4:19+events_unbound	08:15:20	1
3507588	99	81	66,8	cyclictest	53	-21	kswapd0	12:05:00	1
3507587	99	80	72,6	cyclictest	3623200	-21	ssh	10:45:20	0
3507588	99	78	69,6	cyclictest	3538385	-21	kworker/u4:20+events_unbound	09:10:43	1
3507588	99	77	66,8	cyclictest	3510084	-21	kworker/u4:6+events_unbound	07:20:03	1
3507588	99	76	65,6	cyclictest	3510080	-21	kworker/u4:1+events_unbound	07:40:05	1
3507588	99	75	66,7	cyclictest	3545286	-21	kworker/u4:0+events_unbound	09:25:42	1
3507588	99	72	65,5	cyclictest	3528077	-21	kworker/u4:21+events_unbound	08:40:36	1
3507588	99	72	64,6	cyclictest	3712644	-21	kworker/u4:10+events_unbound	12:31:12	1
3507588	99	71	64,5	cyclictest	3521691	-21	kworker/u4:17+events_unbound	08:25:00	1
3507588	99	71	60,7	cyclictest	3576939	-21	kworker/u4:8+events_unbound	10:10:01	1
3507588	99	71	59,7	cyclictest	3514017	-21	kworker/u4:13+events_unbound	07:35:00	1
3507587	99	70	61,7	cyclictest	3603186	-21	kworker/u4:5+events_unbound	10:25:01	0
3507587	99	70	35,32	cyclictest	0	-21	swapper/0	09:30:39	0
3507587	99	70	19,7	cyclictest	3510081	-21	kworker/u4:2+rpciod	07:30:20	0
3507587	99	69	4,9	cyclictest	3610527	-21	ssh	10:30:27	0
3507587	99	69	37,29	cyclictest	3603185	-21	kworker/u4:3-rpciod	10:25:22	0
3507588	99	68	60,6	cyclictest	3510083	-21	kworker/u4:5+events_unbound	07:20:00	1
3507588	99	68	60,6	cyclictest	3510083	-21	kworker/u4:5+events_unbound	07:20:00	1
3507587	99	68	36,29	cyclictest	3515831	-21	fschecks_time	07:40:17	0
3507587	99	68	21,42	cyclictest	0	-21	swapper/0	11:05:16	0
3507588	99	67	60,5	cyclictest	3510080	-21	kworker/u4:1+events_unbound	07:40:02	1
3507587	99	67	52,13	cyclictest	3669566	-21	kworker/u4:10+events_unbound	11:51:00	0
3507588	99	66	56,6	cyclictest	3647373	-21	kworker/u4:2+events_unbound	11:25:01	1
3507587	99	66	31,32	cyclictest	0	-21	swapper/0	08:50:38	0
3507587	99	66	22,40	cyclictest	256	50	irq/23-42890000.ethernet	07:15:19	0
3507587	99	66	22,40	cyclictest	256	50	irq/23-42890000.ethernet	07:15:18	0
3507587	99	66	20,43	cyclictest	0	-21	swapper/0	12:20:00	0
3507587	99	66	14,48	cyclictest	256	50	irq/23-42890000.ethernet	10:55:26	0
3507588	99	65	56,7	cyclictest	3567938	-21	kworker/u4:3+events_unbound	10:00:49	1
3507587	99	65	60,3	cyclictest	0	-21	swapper/0	11:15:26	0
3507587	99	65	5,14	cyclictest	3574330	-21	apt-get	09:50:11	0
3507587	99	65	4,15	cyclictest	3570825	-21	ps	09:45:36	0
3507587	99	65	34,28	cyclictest	3637170	-21	gcc	11:00:35	0
3507587	99	65	31,31	cyclictest	0	-21	swapper/0	09:20:43	0
3507587	99	65	31,29	cyclictest	0	-21	swapper/0	07:40:01	0
3507587	99	65	2,14	cyclictest	3583881	-21	ntpq	10:00:25	0
3507587	99	65	20,42	cyclictest	3619751	-21	mailstats	10:40:38	0
3507587	99	65	16,3	cyclictest	3693135	-21	sh	12:05:12	0
3507588	99	64	52,9	cyclictest	53	-21	kswapd0	12:10:00	1
3507587	99	64	31,30	cyclictest	3671440	-21	aten_r7power_vo	11:40:16	0
3507587	99	64	25,35	cyclictest	3698218	-21	ntp_kernel_pll_	12:10:26	0
3507587	99	64	2,16	cyclictest	3537872	-21	ntpq	09:05:25	0
3507588	99	63	56,5	cyclictest	3612214	-21	kworker/u4:9+events_unbound	10:40:54	1
3507587	99	63	56,5	cyclictest	3522961	-21	kworker/u4:20+events_unbound	08:35:34	0
3507587	99	63	54,7	cyclictest	3612213	-21	kworker/u4:7+events_unbound	10:35:51	0
3507587	99	63	34,25	cyclictest	0	-21	swapper/0	12:30:28	0
3507587	99	63	3,15	cyclictest	3521224	-21	ntpq	08:00:29	0
3507587	99	63	30,29	cyclictest	3723448	-21	kworker/u4:7	12:40:01	0
3507587	99	63	29,31	cyclictest	3522961	-21	kworker/u4:20-rpciod	08:25:39	0
3507587	99	63	29,31	cyclictest	0	-21	swapper/0	12:25:18	0
3507587	99	63	28,31	cyclictest	0	-21	swapper/0	09:00:00	0
3507587	99	63	27,33	cyclictest	0	-21	swapper/0	07:25:24	0
3507587	99	63	26,34	cyclictest	3654724	-21	proc_pri	11:20:35	0
3507587	99	63	2,17	cyclictest	3522536	-21	ntpq	08:05:33	0
3507587	99	62	3,8	cyclictest	3688767	-21	apt-get	12:00:14	0
3507587	99	62	34,26	cyclictest	3644970	-21	awk	11:10:05	0
3507587	99	62	31,27	cyclictest	0	-21	swapper/0	11:35:19	0
3507587	99	62	30,29	cyclictest	0	-21	swapper/0	11:30:01	0
3507587	99	62	27,33	cyclictest	3525899	-21	cpu	08:20:15	0
3507587	99	62	2,15	cyclictest	3596713	-21	ssh	10:15:17	0
3507587	99	61	45,9	cyclictest	3576939	-21	kworker/u4:8-rpciod	10:11:25	0
3507587	99	61	42,17	cyclictest	3679742	-21	latency_hist	11:50:00	0
3507587	99	61	31,27	cyclictest	0	-21	swapper/0	10:50:23	0
3507587	99	61	30,28	cyclictest	0	-21	swapper/0	09:40:31	0
3507587	99	61	29,28	cyclictest	0	-21	swapper/0	07:55:28	0
3507587	99	61	28,29	cyclictest	0	-21	swapper/0	10:10:00	0
3507587	99	61	27,32	cyclictest	3658595	-21	fschecks_time	11:25:18	0
3507587	99	61	1,9	cyclictest	3560990	-21	ssh	09:35:15	0
3507587	99	60	6,14	cyclictest	3552750	-21	ld	09:25:24	0
3507587	99	60	27,30	cyclictest	3508094	-21	gltestperf	07:10:20	0
3507587	99	60	22,34	cyclictest	0	-21	swapper/0	07:45:27	0
3507587	99	60	22,34	cyclictest	0	-21	swapper/0	07:45:26	0
3507588	99	59	52,5	cyclictest	3534545	-21	kworker/u4:6+events_unbound	09:15:04	1
3507588	99	59	48,7	cyclictest	37	-21	kcompactd0	11:16:39	1
3507587	99	59	4,9	cyclictest	3529376	-21	latency_hist	08:35:00	0
3507587	99	59	4,18	cyclictest	3579618	-21	ntpq	09:55:32	0
3507587	99	59	24,32	cyclictest	0	-21	swapper/0	08:45:20	0
3507587	99	59	24,32	cyclictest	0	-21	swapper/0	08:10:22	0
3507587	99	59	22,4	cyclictest	256	50	irq/23-42890000.ethernet	12:20:32	0
3507588	99	58	51,5	cyclictest	3580770	-21	kworker/u4:10+events_unbound	10:10:49	1
3507588	99	58	50,6	cyclictest	53	-21	kswapd0	12:40:00	1
3507587	99	58	24,32	cyclictest	3684853	-21	grep	11:55:20	0
3507587	99	58	1,20	cyclictest	3537146	-21	apt	09:05:01	0
3507587	99	57	27,27	cyclictest	0	-21	swapper/0	09:10:31	0
3507587	99	57	21,33	cyclictest	0	-21	swapper/0	09:15:33	0
3507588	99	56	46,8	cyclictest	3515288	-21	kworker/u4:15+events_unbound	08:10:00	1
3507587	99	56	2,18	cyclictest	3510133	-21	apt-get	07:20:10	0
3507587	99	56	19,34	cyclictest	0	-21	swapper/0	08:15:15	0
3507588	99	55	49,4	cyclictest	3511476	-21	kworker/u4:9+events_unbound	09:00:01	1
3507588	99	55	48,5	cyclictest	3642903	-21	kworker/u4:5+events_unbound	11:07:46	1
3507587	99	55	15,5	cyclictest	0	-21	swapper/0	08:40:14	0
3507587	99	54	18,4	cyclictest	0	-21	swapper/0	07:50:37	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