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 792 highest latencies:

System rack7slot2.osadl.org (updated Mon May 04, 2026 00:44:10)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
2703865	99	109	100,6	cyclictest	2710215	-21	kworker/u4:17+events_unbound	20:00:41	0
2703866	99	106	99,5	cyclictest	2759370	-21	kworker/u4:1+events_unbound	21:37:22	1
2703866	99	106	89,7	cyclictest	2824855	-21	kworker/u4:14+events_unbound	23:02:38	1
2703866	99	103	84,6	cyclictest	2903708	-21	kworker/u4:17+events_unbound	00:23:55	1
2703865	99	86	79,4	cyclictest	1	-21	systemd	20:52:15	0
2703866	99	84	76,6	cyclictest	2708945	-21	kworker/u4:15+events_unbound	20:42:13	1
2703866	99	81	73,6	cyclictest	2719158	-21	kworker/u4:0+events_unbound	20:07:08	1
2703866	99	79	72,5	cyclictest	2724289	-21	kworker/u4:16+events_unbound	20:27:13	1
2703866	99	79	72,5	cyclictest	2724289	-21	kworker/u4:16+events_unbound	20:27:12	1
2703866	99	76	72,2	cyclictest	2838211	-21	kworker/u4:2+events_unbound	23:47:49	1
2703866	99	74	67,5	cyclictest	2711479	-21	kworker/u4:21+events_unbound	19:37:06	1
2703866	99	73	65,6	cyclictest	2714045	-21	kworker/u4:0+events_unbound	19:57:09	1
2703865	99	73	59,6	cyclictest	2842664	-21	kworker/u4:7+events_unbound	23:22:40	0
2703865	99	72	57,12	cyclictest	2816591	-21	kworker/u4:1+events_unbound	22:45:00	0
2703865	99	72	2,27	cyclictest	2761356	-21	apt-get	21:40:05	0
2703866	99	71	64,5	cyclictest	2729472	-21	kworker/u4:7+events_unbound	20:47:14	1
2703866	99	71	63,6	cyclictest	2703802	-21	kworker/u4:5+events_unbound	19:42:08	1
2703865	99	71	64,5	cyclictest	2807658	-21	kworker/u4:3+events_unbound	22:52:34	0
2703865	99	71	62,7	cyclictest	2890365	-21	kworker/u4:7+events_unbound	00:23:52	0
2703865	99	71	52,15	cyclictest	53	-21	kswapd0	22:10:08	0
2703866	99	70	65,4	cyclictest	2705085	-21	kworker/u4:6+events_unbound	19:50:01	1
2703866	99	70	59,8	cyclictest	2717471	-21	ntp_states	20:00:41	1
2703865	99	70	63,5	cyclictest	2691486	-21	kworker/u4:7+events_unbound	19:17:00	0
2703865	99	70	63,5	cyclictest	2691486	-21	kworker/u4:7+events_unbound	19:17:00	0
2703866	99	69	62,5	cyclictest	2724289	-21	kworker/u4:16+events_unbound	21:07:17	1
2703866	99	69	59,4	cyclictest	2729473	-21	kworker/u4:10+events_unbound	20:55:01	1
2703866	99	68	59,5	cyclictest	2719158	-21	kworker/u4:0+events_unbound	20:32:13	1
2703865	99	68	60,6	cyclictest	2856042	-21	kworker/u4:3+events_unbound	23:37:43	0
2703865	99	67	46,18	cyclictest	2883990	-21	sendmail-msp	00:00:00	0
2703866	99	65	45,7	cyclictest	2777202	-21	kworker/u4:4+events_unbound	22:22:01	1
2703865	99	65	58,5	cyclictest	2856041	-21	kworker/u4:0+events_unbound	23:32:42	0
2703865	99	64	55,7	cyclictest	2822240	-21	ssh	22:49:26	0
2703865	99	64	55,7	cyclictest	2822240	-21	ssh	22:49:25	0
2703866	99	63	55,6	cyclictest	2768294	-21	kworker/u4:0+events_unbound	22:36:42	1
2703866	99	63	55,6	cyclictest	2705098	-21	kworker/u4:10+events_unbound	20:22:11	1
2703866	99	63	54,7	cyclictest	398	-21	systemd-logind	21:17:18	1
2703865	99	63	53,7	cyclictest	2831724	-21	ssh	23:00:15	0
2703866	99	61	43,6	cyclictest	2850947	-21	kworker/u4:4+events_unbound	23:30:41	1
2703866	99	60	54,3	cyclictest	0	-21	swapper/1	23:25:11	1
2703865	99	60	46,7	cyclictest	2781654	-21	kworker/u4:1+events_unbound	22:07:27	0
2703865	99	60	43,13	cyclictest	2703864	-21	cyclictest	00:01:15	0
2703865	99	60	42,5	cyclictest	2750431	-21	kworker/u4:10+events_unbound	21:32:21	0
2703866	99	59	51,7	cyclictest	2824855	-21	kworker/u4:14+events_unbound	23:06:41	1
2703865	99	59	36,20	cyclictest	2901423	-21	munin-run	00:20:01	0
2703866	99	58	52,5	cyclictest	2877651	-21	kworker/u4:10+events_unbound	23:58:05	1
2703865	99	58	51,5	cyclictest	2726823	-21	kworker/u4:4+events_unbound	20:40:00	0
2703866	99	57	51,5	cyclictest	2825513	-21	kworker/u4:15+events_unbound	22:57:36	1
2703866	99	57	51,4	cyclictest	2772101	-21	kworker/u4:10+events_unbound	22:10:01	1
2703866	99	57	49,6	cyclictest	2842664	-21	kworker/u4:7+events_unbound	23:52:01	1
2703866	99	57	44,11	cyclictest	2850442	-21	unixbench_multi	23:20:39	1
2703866	99	56	49,5	cyclictest	2691486	-21	kworker/u4:7+events_unbound	19:32:06	1
2703865	99	56	48,6	cyclictest	2719172	-21	kworker/u4:12+events_unbound	20:17:10	0
2703866	99	55	47,5	cyclictest	2786070	-21	kworker/u4:7+events_unbound	22:27:59	1
2703866	99	54	47,5	cyclictest	2691486	-21	kworker/u4:7+events_unbound	19:52:08	1
2703866	99	53	34,6	cyclictest	2777203	-21	kworker/u4:5+events_unbound	21:57:59	1
2703865	99	53	44,7	cyclictest	2724283	-21	systemd	20:27:10	0
2703865	99	53	44,7	cyclictest	2724283	-21	systemd	20:27:10	0
2703865	99	53	43,8	cyclictest	2768295	-21	kworker/u4:3+events_unbound	21:52:01	0
2703865	99	53	33,17	cyclictest	2710250	-21	idleruntime-cro	19:35:00	0
2703866	99	52	44,6	cyclictest	2882117	-21	kworker/u4:1+events_unbound	00:34:00	1
2703866	99	52	44,6	cyclictest	2877650	-21	kworker/u4:9+events_unbound	00:12:41	1
2703865	99	52	44,5	cyclictest	2827918	-21	/usr/sbin/munin	22:55:24	0
2703866	99	51	44,5	cyclictest	2750431	-21	kworker/u4:10+events_unbound	21:30:01	1
2703866	99	51	44,5	cyclictest	2719172	-21	kworker/u4:12+events_unbound	20:17:02	1
2703866	99	51	41,8	cyclictest	2823972	-21	switchtime	22:50:38	1
2703866	99	51	39,9	cyclictest	0	-21	swapper/1	00:05:14	1
2703865	99	51	5,38	cyclictest	2806223	-21	ssh	22:30:35	0
2703865	99	51	41,7	cyclictest	2735285	-21	/usr/sbin/munin	21:10:19	0
2703865	99	51	34,15	cyclictest	2728244	-21	munin-plugin-st	20:45:00	0
2703866	99	50	44,4	cyclictest	2779614	-21	gltestperf	22:00:20	1
2703866	99	50	44,4	cyclictest	2779614	-21	gltestperf	22:00:20	1
2703866	99	50	43,5	cyclictest	2759370	-21	kworker/u4:1+events_unbound	21:45:59	1
2703865	99	50	44,4	cyclictest	2854376	-21	ntp_offset	23:25:29	0
2703865	99	50	43,5	cyclictest	2786070	-21	kworker/u4:7+events_unbound	22:27:29	0
2703865	99	50	41,7	cyclictest	2759376	-21	kworker/u4:9+events_unbound	21:40:01	0
2703866	99	49	41,6	cyclictest	2838209	-21	kworker/u4:0+events_unbound	23:15:21	1
2703865	99	49	42,5	cyclictest	2841298	-21	ssh	23:10:35	0
2703865	99	49	40,6	cyclictest	2740154	-21	diskmemload	21:15:28	0
2703865	99	49	39,7	cyclictest	2749530	-21	unixbench-2d	21:25:38	0
2703865	99	49	38,9	cyclictest	2744065	-21	cpu	21:20:16	0
2703865	99	49	29,17	cyclictest	0	-21	swapper/0	23:05:36	0
2703865	99	49	28,17	cyclictest	0	-21	swapper/0	19:25:01	0
2703866	99	48	42,4	cyclictest	2763890	-21	kworker/u4:8+events_unbound	21:52:59	1
2703866	99	48	41,5	cyclictest	2719171	-21	kworker/u4:9+events_unbound	20:35:01	1
2703866	99	48	38,7	cyclictest	2918732	-21	sh	00:40:01	1
2703865	99	48	40,6	cyclictest	2882124	-21	kworker/u4:8+events_unbound	00:13:47	0
2703866	99	47	6,27	cyclictest	2819194	-21	ssh	22:45:26	1
2703866	99	47	6,27	cyclictest	2819194	-21	ssh	22:45:25	1
2703866	99	47	40,5	cyclictest	2788189	-21	diskstats	22:10:23	1
2703866	99	47	38,7	cyclictest	2814239	-21	aten_r7power_cu	22:40:16	1
2703866	99	47	35,9	cyclictest	2732939	-21	ps	21:00:33	1
2703866	99	47	31,6	cyclictest	2719158	-21	kworker/u4:0+events_unbound	21:10:27	1
2703866	99	47	30,6	cyclictest	2750431	-21	kworker/u4:10+events_unbound	21:34:12	1
2703865	99	47	39,6	cyclictest	2906566	-21	/usr/sbin/munin	00:25:19	0
2703865	99	47	39,6	cyclictest	2702596	-21	kworker/u4:4+events_unbound	19:27:05	0
2703865	99	47	37,8	cyclictest	378	-21	dbus-daemon	22:17:29	0
2703865	99	47	24,21	cyclictest	0	-21	swapper/0	19:10:18	0
2703865	99	47	21,23	cyclictest	0	-21	swapper/0	22:00:39	0
2703865	99	47	21,23	cyclictest	0	-21	swapper/0	22:00:38	0
2703866	99	46	39,5	cyclictest	2897884	-21	gltestperf	00:15:25	1
2703866	99	46	39,5	cyclictest	2748033	-21	latency_hist	21:25:00	1
2703866	99	46	35,8	cyclictest	2704715	-21	ps	19:10:33	1
2703866	99	46	33,7	cyclictest	2842668	-21	kworker/u4:12+events_unbound	23:13:34	1
2703865	99	46	41,3	cyclictest	2789846	-21	kworker/u4:11+events_unbound	22:20:02	0
2703865	99	46	38,5	cyclictest	2775234	-21	gltestperf	21:55:20	0
2703865	99	46	36,8	cyclictest	2867104	-21	fschecks_count	23:40:20	0
2703866	99	45	38,6	cyclictest	2882122	-21	kworker/u4:6+events_unbound	00:00:03	1
2703865	99	45	38,5	cyclictest	2766653	-21	awk	21:45:23	0
2703865	99	45	37,6	cyclictest	2733530	-21	aten2__	21:05:17	0
2703865	99	45	36,6	cyclictest	0	-21	swapper/0	23:15:21	0
2703865	99	45	34,8	cyclictest	0	-21	swapper/0	19:40:38	0
2703866	99	44	6,34	cyclictest	2863118	-21	ssh	23:35:31	1
2703866	99	44	36,6	cyclictest	2869360	-21	sd-accept	23:42:42	1
2703866	99	44	34,7	cyclictest	2792357	-21	aten_r7power_po	22:15:15	1
2703866	99	44	34,7	cyclictest	0	-21	swapper/1	19:30:02	1
2703865	99	44	38,4	cyclictest	2723048	-21	munin-plugin-st	20:25:01	0
2703865	99	44	37,5	cyclictest	2718384	-21	fschecks_time	20:05:17	0
2703865	99	44	37,5	cyclictest	2713322	-21	fschecks_time	19:45:18	0
2703866	99	43	36,5	cyclictest	2768294	-21	kworker/u4:0+events_unbound	22:32:31	1
2703866	99	43	34,7	cyclictest	2761833	-21	aten_r7power_en	21:40:21	1
2703866	99	43	31,10	cyclictest	0	-21	swapper/1	20:10:17	1
2703865	99	43	37,4	cyclictest	2914746	-21	aten2__	00:35:16	0
2703865	99	43	37,4	cyclictest	2911634	-21	/usr/sbin/munin	00:30:41	0
2703865	99	43	35,6	cyclictest	2714517	-21	fschecks_count	19:50:19	0
2703865	99	43	35,5	cyclictest	2790492	-21	kworker/u4:12-rpciod	22:35:26	0
2703865	99	43	33,8	cyclictest	2720442	-21	kthreadd	20:12:09	0
2703866	99	42	33,7	cyclictest	2707827	-21	latency_hist	19:25:01	1
2703866	99	42	33,6	cyclictest	0	-21	swapper/1	20:55:34	1
2703866	99	42	18,14	cyclictest	17	1	rcu_preempt	00:25:11	1
2703865	99	42	34,6	cyclictest	2716545	-21	unixbench_singl	19:55:40	0
2703865	99	42	33,7	cyclictest	2871325	-21	cpu	23:45:18	0
2703866	99	41	33,6	cyclictest	2706412	-21	apt	19:20:01	1
2703866	99	41	33,6	cyclictest	2706412	-21	apt	19:20:00	1
2703865	99	41	33,6	cyclictest	2876573	-21	switchtime	23:50:41	0
2703865	99	40	3,29	cyclictest	2888484	-21	ssh	00:05:03	0
2703865	99	39	33,4	cyclictest	2719158	-21	kworker/u4:0-rpciod	21:00:00	0
2703865	99	39	33,4	cyclictest	0	-21	swapper/0	20:47:14	0
2703865	99	39	32,5	cyclictest	2720442	-21	kworker/u4:13+events_unbound	21:02:17	0
2703865	99	38	29,6	cyclictest	0	-21	swapper/0	19:35:38	0
2703865	99	37	28,6	cyclictest	0	-21	swapper/0	20:30:16	0
2703866	99	31	23,6	cyclictest	0	-21	swapper/1	19:10:01	1
2703865	99	23	14,6	cyclictest	2703971	-21	latency_hist	19:10:01	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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