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 100 highest latencies:

System rack7slot2.osadl.org (updated Fri Jan 30, 2026 12:44:09)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
3641093	99	108	99,6	cyclictest	3788018	-21	kworker/u4:12+events_unbound	11:35:11	1
3641093	99	107	92,6	cyclictest	3809345	-21	kworker/u4:7+events_unbound	11:50:12	1
3641091	99	107	94,10	cyclictest	54	-21	kswapd0	11:45:12	0
3641091	99	105	87,8	cyclictest	3662679	-21	kworker/u4:1+events_unbound	09:14:48	0
3641093	99	101	92,7	cyclictest	3691677	-21	kworker/u4:3+events_unbound	09:39:50	1
3641093	99	100	95,4	cyclictest	3731257	-21	kworker/u4:0+events_unbound	10:19:58	1
3641091	99	92	85,5	cyclictest	3740240	-21	kworker/u4:8+events_unbound	10:35:00	0
3641093	99	91	84,5	cyclictest	3735775	-21	kworker/u4:6+events_unbound	10:29:59	1
3641093	99	91	84,5	cyclictest	3735775	-21	kworker/u4:6+events_unbound	10:29:58	1
3641091	99	89	81,6	cyclictest	3700646	-21	kworker/u4:5+events_unbound	09:44:51	0
3641091	99	87	79,6	cyclictest	3671515	-21	kworker/u4:7+events_unbound	09:09:47	0
3641091	99	87	79,5	cyclictest	3658798	-21	kworker/u4:2+events_unbound	08:34:45	0
3641093	99	84	72,9	cyclictest	54	-21	kswapd0	12:15:12	1
3641091	99	83	74,7	cyclictest	3726780	-21	kworker/u4:3+events_unbound	10:14:57	0
3641091	99	80	74,4	cyclictest	3779211	-21	kworker/u4:9+events_unbound	11:25:00	0
3641093	99	78	71,5	cyclictest	3671515	-21	kworker/u4:7+events_unbound	09:24:49	1
3641091	99	78	71,5	cyclictest	3735775	-21	kworker/u4:6+events_unbound	10:55:03	0
3641091	99	77	69,6	cyclictest	3644844	-21	kworker/u4:8+events_unbound	07:45:01	0
3641091	99	75	69,4	cyclictest	3646098	-21	kworker/u4:9+events_unbound	07:55:00	0
3641091	99	75	68,5	cyclictest	3696169	-21	kworker/u4:9+events_unbound	09:39:51	0
3641093	99	73	59,6	cyclictest	3655023	-21	kworker/u4:17+events_unbound	08:05:02	1
3641093	99	72	67,4	cyclictest	3643563	-21	kworker/u4:7+events_unbound	07:25:00	1
3641091	99	72	63,6	cyclictest	3709561	-21	kworker/u4:12+events_unbound	10:09:56	0
3641093	99	70	51,8	cyclictest	3691679	-21	kworker/u4:5+events_unbound	09:34:51	1
3641091	99	70	62,6	cyclictest	3658796	-21	kworker/u4:0+events_unbound	08:29:45	0
3641093	99	69	55,6	cyclictest	3804963	-21	kworker/u4:15+events_unbound	11:45:01	1
3641091	99	68	60,6	cyclictest	3726785	-21	kworker/u4:10+events_unbound	10:20:01	0
3641093	99	67	61,4	cyclictest	3658796	-21	kworker/u4:0+events_unbound	08:24:59	1
3641091	99	67	60,5	cyclictest	3705106	-21	kworker/u4:10+events_unbound	09:54:52	0
3641091	99	67	59,6	cyclictest	3660079	-21	kworker/u4:4+events_unbound	08:24:43	0
3641093	99	65	49,5	cyclictest	3740239	-21	kworker/u4:7+events_unbound	10:50:00	1
3641093	99	64	57,5	cyclictest	3779212	-21	kworker/u4:10+events_unbound	11:30:09	1
3641093	99	64	42,8	cyclictest	3696169	-21	kworker/u4:9+events_unbound	09:45:33	1
3641091	99	63	56,5	cyclictest	3813723	-21	kworker/u4:3+events_unbound	11:55:01	0
3641091	99	63	44,6	cyclictest	3770387	-21	kworker/u4:20+events_unbound	11:03:44	0
3641091	99	62	43,8	cyclictest	3726790	-21	kworker/u4:14+events_unbound	10:43:42	0
3641093	99	61	54,5	cyclictest	3735775	-21	kworker/u4:6+events_unbound	10:24:58	1
3641091	99	61	49,6	cyclictest	3667727	-21	kworker/u4:14+events_unbound	09:17:01	0
3641093	99	60	52,7	cyclictest	54	-21	kswapd0	12:00:20	1
3641093	99	60	52,6	cyclictest	3663930	-21	kworker/u4:6+events_unbound	08:39:44	1
3641093	99	60	44,7	cyclictest	3740240	-21	kworker/u4:8+events_unbound	10:35:01	1
3641091	99	60	55,4	cyclictest	3714024	-21	kworker/u4:3+events_unbound	09:57:42	0
3641091	99	60	51,6	cyclictest	3761600	-21	kworker/u4:16+events_unbound	11:05:05	0
3641091	99	59	51,6	cyclictest	3651228	-21	kworker/u4:4+events_unbound	08:09:41	0
3641093	99	58	51,5	cyclictest	3691678	-21	kworker/u4:4+events_unbound	10:10:16	1
3641091	99	58	51,5	cyclictest	3779211	-21	kworker/u4:9+events_unbound	11:35:02	0
3641091	99	58	50,6	cyclictest	3726790	-21	kworker/u4:14+events_unbound	10:37:42	0
3641093	99	57	45,9	cyclictest	54	-21	kswapd0	12:20:13	1
3641093	99	57	45,8	cyclictest	54	-21	kswapd0	11:05:01	1
3641091	99	57	49,6	cyclictest	3681717	-21	sh	09:20:35	0
3641091	99	57	49,6	cyclictest	3646098	-21	kworker/u4:9+events_unbound	07:49:38	0
3641091	99	56	49,5	cyclictest	3642296	-21	kworker/u4:3+events_unbound	07:24:37	0
3641091	99	56	47,7	cyclictest	3726785	-21	kworker/u4:10+events_unbound	10:21:44	0
3641091	99	56	47,6	cyclictest	3782425	-21	timerwakeupswit	11:15:37	0
3641091	99	56	35,11	cyclictest	255	50	irq/23-42890000.ethernet	07:10:00	0
3641093	99	55	49,4	cyclictest	3776956	-21	sshd	11:10:05	1
3641093	99	55	46,6	cyclictest	0	-21	swapper/1	10:35:23	1
3641091	99	55	48,5	cyclictest	3691679	-21	kworker/u4:5+events_unbound	09:35:00	0
3641091	99	55	46,6	cyclictest	3829551	-21	diskmemload	12:10:27	0
3641091	99	55	46,6	cyclictest	3658072	-21	fschecks_time	08:15:19	0
3641091	99	55	45,8	cyclictest	0	-21	swapper/0	11:40:11	0
3641091	99	55	44,8	cyclictest	3671557	-21	diskmemload	11:10:07	0
3641091	99	55	36,6	cyclictest	3735775	-21	kworker/u4:6+events_unbound	10:54:59	0
3641091	99	55	33,20	cyclictest	3820542	-21	fschecks_count	12:00:22	0
3641093	99	54	48,4	cyclictest	3665216	-21	kworker/u4:3+events_unbound	09:00:00	1
3641091	99	54	46,6	cyclictest	3818092	-21	kworker/u4:7+events_unbound	12:06:00	0
3641091	99	54	46,6	cyclictest	3687220	-21	kworker/u4:8+events_unbound	10:00:21	0
3641093	99	53	46,5	cyclictest	3826897	-21	kworker/u4:9+events_unbound	12:09:43	1
3641091	99	53	45,5	cyclictest	3790447	-21	gltestperf	11:25:20	0
3641091	99	53	41,8	cyclictest	3839451	-21	kworker/u4:13+events_unbound	12:30:02	0
3641091	99	53	36,10	cyclictest	3831252	-21	kworker/u4:1+events_unbound	12:15:18	0
3641093	99	52	43,6	cyclictest	3676444	-21	sh	09:15:16	1
3641091	99	52	45,5	cyclictest	3702801	-21	ssh	09:45:15	0
3641093	99	51	47,3	cyclictest	3705106	-21	kworker/u4:10+events_unbound	09:55:01	1
3641093	99	51	38,6	cyclictest	3666469	-21	kworker/u4:7+events_unbound	08:50:00	1
3641093	99	51	36,6	cyclictest	3687217	-21	kworker/u4:2+events_unbound	09:29:23	1
3641091	99	51	45,4	cyclictest	3839451	-21	kworker/u4:13+events_unbound	12:21:43	0
3641091	99	51	43,6	cyclictest	3740239	-21	kworker/u4:7+events_unbound	10:27:42	0
3641091	99	51	43,6	cyclictest	3740239	-21	kworker/u4:7+events_unbound	10:27:42	0
3641091	99	50	41,6	cyclictest	0	-21	swapper/0	07:25:36	0
3641091	99	50	34,4	cyclictest	3748414	-21	kworker/u4:1+events_unbound	10:45:54	0
3641091	99	50	33,7	cyclictest	3644844	-21	kworker/u4:8+events_unbound	08:40:03	0
3641091	99	50	29,14	cyclictest	3788018	-21	kworker/u4:12+events_unbound	11:34:00	0
3641093	99	49	42,5	cyclictest	3828826	-21	sh	12:10:13	1
3641093	99	49	42,5	cyclictest	3720072	-21	sed	10:05:01	1
3641093	99	49	37,7	cyclictest	0	-21	swapper/1	07:55:32	1
3641091	99	49	42,5	cyclictest	3843838	-21	kworker/u4:15+events_unbound	12:28:59	0
3641091	99	49	42,5	cyclictest	3671515	-21	kworker/u4:7+events_unbound	09:28:59	0
3641091	99	49	39,8	cyclictest	3665530	-21	aten_r7power_vo	08:45:15	0
3641093	99	48	40,6	cyclictest	3752838	-21	kworker/u4:10+events_unbound	10:50:59	1
3641093	99	48	40,5	cyclictest	3776874	-21	ls	11:10:03	1
3641093	99	48	39,7	cyclictest	3807674	-21	fschecks_count	11:45:24	1
3641093	99	47	40,5	cyclictest	3658796	-21	kworker/u4:0+events_unbound	09:04:47	1
3641093	99	47	40,5	cyclictest	3610702	-21	kworker/u4:2+events_unbound	07:40:01	1
3641093	99	47	38,7	cyclictest	3781327	-21	aten2__	11:15:14	1
3641093	99	47	2,41	cyclictest	3790785	-21	ntpq	11:25:32	1
3641091	99	47	39,6	cyclictest	3817182	-21	/usr/sbin/munin	11:55:40	0
3641091	99	47	39,6	cyclictest	3653741	-21	kworker/u4:11+events_unbound	07:59:41	0
3641093	99	46	40,4	cyclictest	3641089	-21	cyclictest	08:50:23	1
3641093	99	46	39,5	cyclictest	3752173	-21	/usr/sbin/munin	10:40:36	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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