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 all highest latencies:

System rack7slot2.osadl.org (updated Wed Jul 29, 2026 00:44:12)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
3811008	99	114	101,5	cyclictest	3933574	-21	kworker/u4:11+events_unbound	23:31:58	0
3811008	99	110	92,7	cyclictest	3898524	-21	kworker/u4:8+events_unbound	22:16:44	0
3811008	99	110	92,7	cyclictest	3898524	-21	kworker/u4:8+events_unbound	22:16:44	0
3811008	99	103	95,6	cyclictest	3849031	-21	kworker/u4:14+events_unbound	21:41:37	0
3811008	99	102	95,5	cyclictest	3990690	-21	kworker/u4:2+events_unbound	00:12:05	0
3811008	99	102	95,5	cyclictest	3990690	-21	kworker/u4:2+events_unbound	00:12:05	0
3811011	99	101	93,6	cyclictest	3920175	-21	kworker/u4:10+events_unbound	23:01:56	1
3811008	99	99	91,6	cyclictest	3932915	-21	kworker/u4:7+events_unbound	22:51:49	0
3811011	99	95	88,5	cyclictest	3884949	-21	kworker/u4:2+events_unbound	22:01:41	1
3811011	99	93	86,5	cyclictest	3950910	-21	kworker/u4:4+events_unbound	23:16:57	1
3811011	99	91	76,4	cyclictest	3832862	-21	kworker/u4:0+events_unbound	21:16:32	1
3811011	99	91	76,4	cyclictest	3832862	-21	kworker/u4:0+events_unbound	21:16:32	1
3811008	99	91	83,6	cyclictest	4013019	-21	kworker/u4:6+events_unbound	00:32:09	0
3811008	99	91	83,6	cyclictest	3839245	-21	kworker/u4:18+events_unbound	21:51:39	0
3811011	99	89	82,5	cyclictest	3932914	-21	kworker/u4:5+events_unbound	23:06:57	1
3811011	99	85	77,6	cyclictest	3929089	-21	kworker/u4:0+events_unbound	23:11:56	1
3811011	99	84	75,6	cyclictest	3888834	-21	kworker/u4:3+events_unbound	22:26:46	1
3811008	99	84	77,5	cyclictest	3915698	-21	kworker/u4:6+events_unbound	22:41:48	0
3811008	99	84	73,8	cyclictest	3959920	-21	kworker/u4:13+events_unbound	23:26:59	0
3811008	99	83	76,5	cyclictest	3839245	-21	kworker/u4:18+events_unbound	21:56:40	0
3811008	99	81	74,5	cyclictest	3929089	-21	kworker/u4:0+events_unbound	23:21:58	0
3811011	99	79	72,5	cyclictest	3839245	-21	kworker/u4:18+events_unbound	21:21:33	1
3811008	99	76	68,6	cyclictest	3889504	-21	kworker/u4:6+events_unbound	22:06:42	0
3811008	99	75	62,5	cyclictest	3821202	-21	kworker/u4:17+events_unbound	21:01:31	0
3811008	99	74	65,7	cyclictest	3986201	-21	kworker/u4:6+events_unbound	23:52:03	0
3811011	99	73	64,6	cyclictest	3821201	-21	kworker/u4:16+events_unbound	20:01:26	1
3811008	99	73	65,6	cyclictest	3834136	-21	kworker/u4:8+events_unbound	21:36:36	0
3811011	99	72	65,5	cyclictest	4003401	-21	kworker/u4:5+events_unbound	00:17:06	1
3811008	99	71	63,6	cyclictest	3819926	-21	kworker/u4:3+events_unbound	19:51:25	0
3811011	99	69	53,7	cyclictest	3977216	-21	kworker/u4:2+events_unbound	23:42:02	1
3811011	99	68	61,5	cyclictest	3955398	-21	kworker/u4:7+events_unbound	23:37:00	1
3811008	99	66	59,5	cyclictest	3819925	-21	kworker/u4:2+events_unbound	19:46:25	0
3811011	99	64	57,5	cyclictest	4003401	-21	kworker/u4:5+events_unbound	00:22:07	1
3811008	99	63	54,6	cyclictest	3832863	-21	kworker/u4:2+events_unbound	20:36:30	0
3811011	99	61	53,6	cyclictest	3819924	-21	kworker/u4:1+events_unbound	20:46:31	1
3811008	99	61	50,6	cyclictest	3814820	-21	kworker/u4:15+events_unbound	19:40:01	0
3811011	99	60	53,5	cyclictest	3812238	-21	kworker/u4:5+events_unbound	21:31:35	1
3811008	99	60	53,5	cyclictest	15	1	ktimers/0	21:46:55	0
3811008	99	59	51,6	cyclictest	3812237	-21	kworker/u4:4+events_unbound	19:21:24	0
3811008	99	58	53,3	cyclictest	3832865	-21	kworker/u4:6+events_unbound	20:51:32	0
3811011	99	57	50,5	cyclictest	3812238	-21	kworker/u4:5+events_unbound	20:31:30	1
3811011	99	57	43,5	cyclictest	3837973	-21	kworker/u4:13+events_unbound	21:06:33	1
3811008	99	57	49,6	cyclictest	0	-21	swapper/0	23:40:12	0
3811008	99	57	34,8	cyclictest	3995081	-21	kworker/u4:3+events_unbound	00:07:26	0
3811008	99	57	34,8	cyclictest	3995081	-21	kworker/u4:3+events_unbound	00:07:26	0
3811011	99	56	49,5	cyclictest	3915697	-21	kworker/u4:5+events_unbound	22:35:46	1
3811011	99	56	49,5	cyclictest	3811006	-21	cyclictest	00:07:03	1
3811011	99	56	49,5	cyclictest	3811006	-21	cyclictest	00:07:03	1
3811008	99	56	41,5	cyclictest	3929091	-21	kworker/u4:2+events_unbound	22:47:45	0
3811008	99	56	38,6	cyclictest	3932915	-21	kworker/u4:7+events_unbound	22:56:54	0
3811011	99	55	48,5	cyclictest	3819924	-21	kworker/u4:1+events_unbound	20:25:04	1
3811011	99	55	47,6	cyclictest	4008556	-21	kworker/u4:3+events_unbound	00:27:08	1
3811008	99	55	48,5	cyclictest	3981104	-21	unixbench_multi	23:45:49	0
3811008	99	55	46,7	cyclictest	3834138	-21	kworker/u4:10+events_unbound	20:56:31	0
3811011	99	54	45,7	cyclictest	317	-21	systemd-journal	00:02:03	1
3811011	99	54	40,6	cyclictest	3819925	-21	kworker/u4:2+events_unbound	20:21:30	1
3811011	99	54	40,6	cyclictest	3812241	-21	kworker/u4:10+events_unbound	19:56:26	1
3811008	99	54	49,4	cyclictest	3832864	-21	kworker/u4:3+events_unbound	21:10:02	0
3811008	99	54	47,5	cyclictest	3894036	-21	kworker/u4:0+events_unbound	22:35:01	0
3811008	99	54	41,7	cyclictest	3932915	-21	kworker/u4:7+events_unbound	23:05:24	0
3811008	99	54	31,5	cyclictest	0	-21	swapper/0	22:10:11	0
3811011	99	53	46,5	cyclictest	4025030	-21	unixbench_singl	00:35:42	1
3811008	99	53	42,8	cyclictest	3811006	-21	cyclictest	22:22:40	0
3811008	99	53	36,6	cyclictest	3832864	-21	kworker/u4:3+events_unbound	21:10:21	0
3811011	99	52	35,5	cyclictest	3929091	-21	kworker/u4:2+events_unbound	22:51:23	1
3811008	99	52	46,4	cyclictest	3932914	-21	kworker/u4:5+events_unbound	23:15:44	0
3811008	99	52	45,5	cyclictest	3853629	-21	kworker/u4:1+events_unbound	21:35:01	0
3811008	99	52	44,6	cyclictest	3825123	-21	kworker/u4:9+events_unbound	20:05:01	0
3811011	99	51	44,5	cyclictest	3939679	-21	sh	23:00:01	1
3811011	99	51	43,6	cyclictest	4004065	-21	kworker/u4:14+events_unbound	00:15:01	1
3811011	99	51	43,6	cyclictest	4004065	-21	kworker/u4:14+events_unbound	00:15:01	1
3811011	99	51	43,6	cyclictest	3819924	-21	kworker/u4:1+events_unbound	20:06:27	1
3811011	99	51	40,8	cyclictest	3812239	-21	kworker/u4:6+events_unbound	19:28:37	1
3811008	99	51	43,5	cyclictest	0	-21	swapper/0	21:15:33	0
3811008	99	51	43,5	cyclictest	0	-21	swapper/0	21:15:33	0
3811008	99	51	42,7	cyclictest	3932915	-21	kworker/u4:7+events_unbound	23:00:15	0
3811008	99	50	42,6	cyclictest	4024360	-21	/usr/sbin/munin	00:35:24	0
3811008	99	50	41,7	cyclictest	3918361	-21	gltestperf	22:35:20	0
3811011	99	49	42,5	cyclictest	3913827	-21	/usr/sbin/munin	22:30:20	1
3811011	99	49	42,5	cyclictest	3832865	-21	kworker/u4:6+events_unbound	21:00:01	1
3811011	99	49	41,6	cyclictest	3875814	-21	kworker/u4:3+events_unbound	21:50:16	1
3811011	99	49	36,8	cyclictest	0	-21	swapper/1	23:51:43	1
3811008	99	49	42,5	cyclictest	4014990	-21	/usr/sbin/munin	00:25:16	0
3811008	99	49	39,7	cyclictest	0	-21	swapper/0	23:10:35	0
3811008	99	49	38,9	cyclictest	3891287	-21	munin-run	22:05:01	0
3811011	99	48	39,7	cyclictest	3827376	-21	proc_pri	20:10:40	1
3811011	99	48	39,6	cyclictest	3819739	-21	timerwakeupswit	19:40:38	1
3811011	99	48	38,8	cyclictest	3967369	-21	ntp_states	23:30:37	1
3811011	99	48	35,10	cyclictest	3886828	-21	wc	22:00:01	1
3811008	99	48	41,5	cyclictest	3813562	-21	munin-plugin-st	19:20:00	0
3811008	99	48	41,5	cyclictest	3813562	-21	munin-plugin-st	19:20:00	0
3811008	99	48	39,7	cyclictest	3826600	-21	awk	20:10:02	0
3811008	99	48	21,16	cyclictest	4006948	-21	ntpq	00:15:35	0
3811011	99	47	41,4	cyclictest	4022364	-21	sshd	00:33:20	1
3811011	99	47	40,5	cyclictest	3959920	-21	kworker/u4:13+events_unbound	23:26:10	1
3811011	99	47	39,6	cyclictest	3819928	-21	kworker/u4:6+events_unbound	20:15:08	1
3811011	99	47	37,8	cyclictest	3926961	-21	/usr/sbin/munin	22:45:20	1
3811008	99	47	40,5	cyclictest	3997160	-21	latency_hist	00:05:01	0
3811008	99	47	36,8	cyclictest	4011780	-21	timerwakeupswit	00:20:47	0
3811008	99	47	24,7	cyclictest	0	-21	swapper/0	20:25:36	0
3811011	99	46	39,5	cyclictest	3891689	-21	cut	22:05:22	1
3811011	99	46	38,6	cyclictest	3870319	-21	ssh	21:40:41	1
3811011	99	46	35,9	cyclictest	3834413	-21	aten_r7power_cu	20:40:16	1
3811008	99	46	40,4	cyclictest	3971318	-21	grep	23:35:22	0
3811008	99	46	38,6	cyclictest	3812238	-21	kworker/u4:5+events_unbound	19:12:16	0
3811008	99	46	36,7	cyclictest	3856223	-21	/usr/sbin/munin	21:25:22	0
3811008	99	46	34,9	cyclictest	3836831	-21	ls	20:50:01	0
3811011	99	45	40,4	cyclictest	3834136	-21	kworker/u4:8+events_unbound	21:29:46	1
3811011	99	45	38,5	cyclictest	3821201	-21	kworker/u4:16+events_unbound	19:50:14	1
3811011	99	45	38,5	cyclictest	3814818	-21	kworker/u4:13+events_unbound	19:31:24	1
3811008	99	45	38,5	cyclictest	3902963	-21	kworker/u4:1+events_unbound	22:25:03	0
3811008	99	45	38,5	cyclictest	3832053	-21	fschecks_count	20:30:19	0
3811008	99	45	38,5	cyclictest	3811017	-21	latency_hist	19:10:01	0
3811008	99	45	36,7	cyclictest	3988807	-21	df_abs	23:55:17	0
3811011	99	44	37,5	cyclictest	3905983	-21	unixbench-2d	22:20:43	1
3811011	99	44	37,5	cyclictest	3864880	-21	df_abs	21:35:17	1
3811011	99	44	36,5	cyclictest	3896388	-21	fschecks_time	22:10:19	1
3811011	99	44	36,5	cyclictest	0	-21	swapper/1	23:20:29	1
3811011	99	44	32,8	cyclictest	3832862	-21	kworker/u4:0+rpciod	20:35:35	1
3811008	99	44	37,5	cyclictest	3851558	-21	fschecks_time	21:20:20	0
3811008	99	44	37,5	cyclictest	1069	-21	lldpd	20:21:23	0
3811008	99	44	31,10	cyclictest	3835276	-21	sort	20:40:39	0
3811011	99	43	36,5	cyclictest	3842598	-21	gltestperf	21:10:21	1
3811011	99	43	34,7	cyclictest	3979834	-21	ssh	23:45:18	1
3811011	99	43	32,9	cyclictest	3818619	-21	systemd	19:36:24	1
3811011	99	43	31,9	cyclictest	0	-21	swapper/1	22:40:39	1
3811011	99	42	35,5	cyclictest	3873659	-21	aten2__	21:45:16	1
3811011	99	42	32,7	cyclictest	3821222	-21	sh	19:50:00	1
3811011	99	42	31,9	cyclictest	26	1	rcuc/1	23:55:26	1
3811011	99	42	23,5	cyclictest	17	1	rcu_preempt	21:00:24	1
3811008	99	42	36,4	cyclictest	3828024	-21	aten_r7power_en	20:15:17	0
3811008	99	42	35,5	cyclictest	3819925	-21	kworker/u4:2-rpciod	19:55:40	0
3811011	99	41	35,4	cyclictest	3813771	-21	aten2__	19:20:16	1
3811011	99	41	32,7	cyclictest	3837942	-21	unixbench_singl	20:50:40	1
3811011	99	41	32,7	cyclictest	3811423	-21	fschecks_count	19:10:24	1
3811011	99	41	23,6	cyclictest	3898527	-21	kworker/u4:11+events_unbound	22:15:45	1
3811011	99	41	23,6	cyclictest	3898527	-21	kworker/u4:11+events_unbound	22:15:45	1
3811008	99	41	32,7	cyclictest	3816576	-21	fschecks_time	19:30:18	0
3811011	99	40	33,5	cyclictest	3812237	-21	kworker/u4:4+events_unbound	19:16:23	1
3811011	99	40	33,5	cyclictest	3812237	-21	kworker/u4:4+events_unbound	19:16:23	1
3811008	99	39	32,5	cyclictest	3815139	-21	aten_r7power_vo	19:25:17	0
3811008	99	38	31,5	cyclictest	3819957	-21	apt	19:45:00	0
3811008	99	37	30,4	cyclictest	0	-21	swapper/0	20:10:42	0
3811011	99	33	24,7	cyclictest	0	-21	swapper/1	19:10:02	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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