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 Mon Jul 13, 2026 00:44:09)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
2742491	99	147	111,30	cyclictest	2742462	-21	apt-get	19:10:08	0
2742491	99	117	86,24	cyclictest	2773582	-21	find	21:10:14	0
2742492	99	96	88,6	cyclictest	2760435	-21	kworker/u4:7+events_unbound	21:16:46	1
2742492	99	93	84,6	cyclictest	2761738	-21	kworker/u4:4+events_unbound	20:36:38	1
2742492	99	92	85,5	cyclictest	2885167	-21	kworker/u4:6+events_unbound	23:22:06	1
2742491	99	92	83,6	cyclictest	2907298	-21	kworker/u4:12+events_unbound	23:52:14	0
2742492	99	91	83,6	cyclictest	2946581	-21	kworker/u4:2+events_unbound	00:28:31	1
2742492	99	80	72,6	cyclictest	2919936	-21	kworker/u4:4+events_unbound	00:03:06	1
2742492	99	80	63,5	cyclictest	2766849	-21	kworker/u4:14+events_unbound	20:56:42	1
2742492	99	79	71,6	cyclictest	2836918	-21	kworker/u4:14+events_unbound	22:31:58	1
2742492	99	77	61,6	cyclictest	2760414	-21	kworker/u4:5+events_unbound	20:21:36	1
2742492	99	77	61,6	cyclictest	2760414	-21	kworker/u4:5+events_unbound	20:21:36	1
2742492	99	75	67,6	cyclictest	2928848	-21	kworker/u4:6+events_unbound	00:18:23	1
2742492	99	73	67,4	cyclictest	2766849	-21	kworker/u4:14+events_unbound	20:51:40	1
2742492	99	73	66,5	cyclictest	2827989	-21	kworker/u4:8+events_unbound	22:11:53	1
2742491	99	72	59,6	cyclictest	2801905	-21	kworker/u4:18+events_unbound	21:41:52	0
2742491	99	71	62,6	cyclictest	2793657	-21	kworker/u4:10+events_unbound	21:36:51	0
2742491	99	71	49,19	cyclictest	53	-21	kswapd0	00:35:13	0
2742492	99	69	55,9	cyclictest	2907298	-21	kworker/u4:12-rpciod	00:36:39	1
2742491	99	68	56,5	cyclictest	2854716	-21	kworker/u4:3+events_unbound	22:46:58	0
2742491	99	68	56,5	cyclictest	2854716	-21	kworker/u4:3+events_unbound	22:46:58	0
2742492	99	67	59,6	cyclictest	2754042	-21	kworker/u4:5+events_unbound	19:55:01	1
2742491	99	66	43,6	cyclictest	2791144	-21	apt-get	21:30:15	0
2742491	99	66	3,21	cyclictest	2742462	-21	apt-get	19:10:00	0
2742491	99	66	2,57	cyclictest	2778697	-21	ssh	21:15:28	0
2742491	99	65	58,4	cyclictest	0	-21	swapper/0	21:20:08	0
2742492	99	64	51,8	cyclictest	53	-21	kswapd0	23:40:01	1
2742491	99	64	51,5	cyclictest	2928848	-21	kworker/u4:6+events_unbound	00:13:19	0
2742491	99	62	43,11	cyclictest	53	-21	kswapd0	23:05:09	0
2742492	99	60	50,7	cyclictest	2738696	-21	kworker/u4:8+events_unbound	19:11:28	1
2742492	99	60	42,8	cyclictest	0	-21	swapper/1	23:25:19	1
2742491	99	60	34,23	cyclictest	0	-21	swapper/0	22:30:15	0
2742492	99	59	51,5	cyclictest	2748932	-21	kworker/u4:4+events_unbound	19:36:32	1
2742491	99	59	51,6	cyclictest	2832437	-21	kworker/u4:12+events_unbound	22:16:54	0
2742491	99	59	51,5	cyclictest	2761738	-21	kworker/u4:4+events_unbound	20:40:00	0
2742491	99	59	50,6	cyclictest	2868022	-21	kworker/u4:4+events_unbound	23:02:01	0
2742491	99	58	37,19	cyclictest	2768602	-21	fschecks_count	20:50:19	0
2742492	99	57	43,7	cyclictest	2743811	-21	kworker/u4:14+events_unbound	20:00:28	1
2742492	99	57	43,7	cyclictest	2743811	-21	kworker/u4:14+events_unbound	20:00:27	1
2742492	99	57	43,6	cyclictest	2845830	-21	kworker/u4:4+events_unbound	22:36:58	1
2742491	99	57	7,16	cyclictest	2879567	-21	ps	23:10:38	0
2742491	99	57	50,4	cyclictest	2742487	-21	cyclictest	23:37:48	0
2742491	99	57	48,7	cyclictest	2813281	-21	/usr/sbin/munin	21:55:20	0
2742492	99	56	48,6	cyclictest	2775896	-21	kworker/u4:0+events_unbound	21:20:14	1
2742492	99	56	46,8	cyclictest	2885188	-21	sshd	23:17:03	1
2742492	99	55	44,5	cyclictest	2509439	-21	kworker/u4:1+events_unbound	19:56:32	1
2742491	99	55	46,7	cyclictest	2885164	-21	kworker/u4:0+events_unbound	23:17:05	0
2742491	99	55	45,7	cyclictest	2738692	-21	kworker/u4:2+events_unbound	19:16:30	0
2742492	99	54	46,6	cyclictest	2763009	-21	kworker/u4:8+events_unbound	20:31:38	1
2742492	99	54	46,5	cyclictest	2743812	-21	kworker/u4:15+events_unbound	19:46:33	1
2742492	99	53	46,5	cyclictest	2810835	-21	kworker/u4:4+events_unbound	22:25:03	1
2742492	99	53	45,6	cyclictest	2789235	-21	kworker/u4:1+events_unbound	21:30:15	1
2742492	99	53	45,6	cyclictest	2743812	-21	kworker/u4:15+events_unbound	20:26:36	1
2742492	99	53	2,38	cyclictest	2774496	-21	ntp_states	21:10:42	1
2742492	99	52	45,5	cyclictest	2850287	-21	kworker/u4:1+events_unbound	22:51:59	1
2742492	99	52	45,5	cyclictest	2760435	-21	kworker/u4:7+events_unbound	21:01:43	1
2742492	99	52	44,5	cyclictest	2928848	-21	kworker/u4:6+events_unbound	00:10:02	1
2742492	99	52	43,6	cyclictest	2927889	-21	/usr/sbin/munin	00:05:41	1
2742491	99	52	46,4	cyclictest	2804393	-21	aten_r7power_vo	21:45:16	0
2742491	99	52	45,4	cyclictest	2830187	-21	modprobe	22:15:00	0
2742491	99	52	43,6	cyclictest	2907108	-21	ssh	23:42:20	0
2742492	99	51	44,5	cyclictest	2761738	-21	kworker/u4:4+events_unbound	21:06:44	1
2742492	99	51	44,5	cyclictest	2761738	-21	kworker/u4:4+events_unbound	21:06:43	1
2742492	99	51	4,39	cyclictest	53	-21	kswapd0	23:00:33	1
2742492	99	51	43,5	cyclictest	0	-21	swapper/1	21:45:15	1
2742492	99	51	38,6	cyclictest	2854724	-21	kworker/u4:15+events_unbound	22:47:46	1
2742492	99	51	38,6	cyclictest	2854724	-21	kworker/u4:15+events_unbound	22:47:45	1
2742492	99	51	37,11	cyclictest	2836995	-21	sshd	22:21:53	1
2742491	99	51	41,7	cyclictest	2852506	-21	aten_r7power_cu	22:40:16	0
2742492	99	50	44,4	cyclictest	0	-21	swapper/1	00:23:26	1
2742492	99	50	42,6	cyclictest	2879101	-21	gltestperf	23:10:23	1
2742492	99	50	40,6	cyclictest	2797446	-21	kworker/u4:17-rpciod	21:40:31	1
2742491	99	50	44,4	cyclictest	2818429	-21	mailstats	22:00:41	0
2742491	99	50	42,6	cyclictest	2810835	-21	kworker/u4:4+events_unbound	21:55:00	0
2742491	99	50	38,10	cyclictest	53	-21	kswapd0	00:00:09	0
2742492	99	49	41,6	cyclictest	2859159	-21	kworker/u4:0+events_unbound	23:09:34	1
2742492	99	49	40,6	cyclictest	0	-21	swapper/1	20:40:37	1
2742491	99	49	40,6	cyclictest	2771985	-21	sh	21:04:59	0
2742492	99	48	40,6	cyclictest	317	-21	systemd-journal	21:26:47	1
2742492	99	48	40,6	cyclictest	2813418	-21	cut	21:55:21	1
2742491	99	48	41,5	cyclictest	2944329	-21	fschecks_count	00:25:20	0
2742491	99	48	40,6	cyclictest	2743810	-21	kworker/u4:13+events_unbound	19:26:30	0
2742491	99	48	38,7	cyclictest	2862174	-21	mailstats	22:50:39	0
2742491	99	48	38,7	cyclictest	2822408	-21	ntp_kernel_err	22:05:24	0
2742491	99	48	38,7	cyclictest	2760927	-21	fschecks_count	20:20:19	0
2742491	99	48	38,7	cyclictest	2760927	-21	fschecks_count	20:20:19	0
2742491	99	48	28,6	cyclictest	0	-21	swapper/0	00:05:33	0
2742492	99	47	40,5	cyclictest	2946581	-21	kworker/u4:2-rpciod	00:30:39	1
2742492	99	47	40,5	cyclictest	2767331	-21	fschecks_count	20:45:21	1
2742492	99	47	37,7	cyclictest	0	-21	swapper/1	21:35:30	1
2742492	99	47	33,11	cyclictest	0	-21	swapper/1	23:40:38	1
2742491	99	47	40,5	cyclictest	2940765	-21	diskmemload	00:20:39	0
2742491	99	47	40,5	cyclictest	2888014	-21	/usr/sbin/munin	23:20:25	0
2742491	99	47	37,7	cyclictest	2763631	-21	gltestperf	20:30:21	0
2742491	99	47	36,9	cyclictest	2848974	-21	proc_pri	22:35:37	0
2742491	99	47	26,18	cyclictest	0	-21	swapper/0	19:50:01	0
2742492	99	46	39,5	cyclictest	2821467	-21	latency_hist	22:05:01	1
2742492	99	46	37,7	cyclictest	2751318	-21	timerwakeupswit	19:40:38	1
2742492	99	46	25,8	cyclictest	2854724	-21	kworker/u4:15+events_unbound	22:43:30	1
2742491	99	46	40,4	cyclictest	2748632	-21	cat	19:30:40	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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