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 Apr 06, 2026 00:44:11)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
2448827	99	107	97,7	cyclictest	2582292	-21	kworker/u4:5+events_unbound	23:16:34	0
2448827	99	87	9,19	cyclictest	2475884	-21	acpi	20:55:12	0
2448827	99	87	79,6	cyclictest	2616838	-21	kworker/u4:10+events_unbound	00:13:32	0
2448827	99	84	4,71	cyclictest	2533177	-21	ssh	22:10:30	0
2448827	99	81	72,7	cyclictest	2552119	-21	kworker/u4:3+events_unbound	22:46:25	0
2448827	99	81	37,18	cyclictest	2448826	-21	cyclictest	20:25:01	0
2448827	99	80	72,6	cyclictest	2226176	-21	kworker/u4:5+events_unbound	19:56:22	0
2448828	99	77	35,14	cyclictest	2631874	-21	apt-get	00:05:11	1
2448827	99	72	62,7	cyclictest	2586692	-21	kworker/u4:2+events_unbound	23:15:01	0
2448827	99	69	60,7	cyclictest	2490937	-21	kworker/u4:4+events_unbound	21:26:08	0
2448827	99	67	52,12	cyclictest	2448826	-21	cyclictest	22:25:08	0
2448828	99	66	35,9	cyclictest	2458514	-21	ntpq	19:45:26	1
2448827	99	65	57,6	cyclictest	2556513	-21	kworker/u4:8+events_unbound	22:41:25	0
2448828	99	64	26,12	cyclictest	2585012	-21	ntpq	23:10:27	1
2448828	99	64	26,10	cyclictest	2651811	-21	ssh	00:27:51	1
2448827	99	64	56,6	cyclictest	2452636	-21	kworker/u4:15+events_unbound	20:10:52	0
2448828	99	63	26,13	cyclictest	2529405	-21	sshd	22:05:40	1
2448828	99	63	24,14	cyclictest	2536618	-21	ssh	22:15:09	1
2448828	99	63	23,17	cyclictest	2535506	-21	ssh	22:13:31	1
2448828	99	63	22,14	cyclictest	2629095	-21	ssh	00:00:57	1
2448828	99	63	22,14	cyclictest	2573893	-21	ssh	22:57:41	1
2448827	99	63	36,23	cyclictest	53	-21	kswapd0	21:50:10	0
2448828	99	62	26,12	cyclictest	2647651	-21	ssh	00:23:06	1
2448828	99	62	25,11	cyclictest	2612820	-21	ssh	23:42:36	1
2448828	99	62	25,10	cyclictest	2564234	-21	ssh	22:46:04	1
2448828	99	62	24,11	cyclictest	2548183	-21	ssh	22:28:07	1
2448828	99	62	23,15	cyclictest	2595608	-21	ssh	23:22:43	1
2448828	99	62	23,14	cyclictest	2583674	-21	ssh	23:09:29	1
2448828	99	62	22,15	cyclictest	2556207	-21	ssh	22:37:08	1
2448828	99	62	22,15	cyclictest	2491107	-21	ssh	21:22:12	1
2448828	99	62	22,15	cyclictest	2487553	-21	ssh	21:18:37	1
2448828	99	62	22,14	cyclictest	2592324	-21	ssh	23:19:28	1
2448827	99	62	46,8	cyclictest	2484023	-21	kworker/u4:10	21:14:59	0
2448828	99	61	26,10	cyclictest	2553180	-21	ssh	22:34:12	1
2448828	99	61	26,10	cyclictest	2553180	-21	ssh	22:34:12	1
2448828	99	61	25,13	cyclictest	2505050	-21	ssh	21:38:30	1
2448828	99	61	24,14	cyclictest	2540934	-21	ssh	22:20:08	1
2448828	99	61	24,11	cyclictest	2579420	-21	ssh	23:04:35	1
2448828	99	61	23,13	cyclictest	2600812	-21	ssh	23:29:09	1
2448828	99	61	23,13	cyclictest	2501214	-21	ssh	21:34:19	1
2448828	99	61	23,13	cyclictest	2483355	-21	ssh	21:13:59	1
2448828	99	61	23,12	cyclictest	2525448	-21	ssh	22:01:17	1
2448828	99	61	23,11	cyclictest	2602289	-21	ntpq	23:30:25	1
2448828	99	61	23,11	cyclictest	2602289	-21	ntpq	23:30:25	1
2448828	99	61	23,10	cyclictest	2623215	-21	ssh	23:55:10	1
2448828	99	61	22,14	cyclictest	2660540	-21	ssh	00:38:00	1
2448828	99	61	22,13	cyclictest	2654849	-21	ssh	00:30:47	1
2448828	99	61	22,11	cyclictest	2639761	-21	ssh	00:14:22	1
2448828	99	61	22,11	cyclictest	2608737	-21	ssh	23:38:00	1
2448828	99	61	21,15	cyclictest	2562324	-21	ssh	22:44:59	1
2448828	99	61	21,13	cyclictest	2522076	-21	ssh	21:57:52	1
2448827	99	61	54,5	cyclictest	0	-21	swapper/0	21:40:33	0
2448827	99	61	3,48	cyclictest	2489583	-21	ssh	21:20:31	0
2448828	99	60	24,12	cyclictest	2508095	-21	ssh	21:41:23	1
2448828	99	60	23,12	cyclictest	2517454	-21	ssh	21:52:24	1
2448828	99	60	22,14	cyclictest	2643933	-21	ssh	00:19:06	1
2448828	99	60	22,13	cyclictest	2497310	-21	ssh	21:30:00	1
2448827	99	60	36,7	cyclictest	2459449	-21	fschecks_count	19:50:18	0
2448828	99	59	22,10	cyclictest	2568878	-21	ssh	22:51:32	1
2448828	99	59	21,13	cyclictest	2622784	-21	ssh	23:54:44	1
2448827	99	58	51,5	cyclictest	2499243	-21	kworker/u4:10+events_unbound	21:31:09	0
2448827	99	58	46,9	cyclictest	2555729	-21	systemd	22:36:21	0
2448828	99	57	47,8	cyclictest	398	-21	systemd-logind	19:56:21	1
2448828	99	57	24,5	cyclictest	2470707	-21	apt-get	20:35:15	1
2448828	99	57	21,11	cyclictest	2616092	-21	ssh	23:45:55	1
2448827	99	57	50,5	cyclictest	2452636	-21	kworker/u4:15+events_unbound	20:10:00	0
2448827	99	57	50,5	cyclictest	2452636	-21	kworker/u4:15+events_unbound	20:10:00	0
2448828	99	56	22,10	cyclictest	2512996	-21	ssh	21:47:15	1
2448827	99	56	47,5	cyclictest	0	-21	swapper/0	21:55:27	0
2448828	99	55	38,13	cyclictest	2472621	-21	ntpq	20:40:28	1
2448828	99	55	38,13	cyclictest	2472621	-21	ntpq	20:40:28	1
2448828	99	55	17,13	cyclictest	2473944	-21	ld	20:45:32	1
2448827	99	55	47,5	cyclictest	2226176	-21	kworker/u4:5+events_unbound	19:15:41	0
2448827	99	55	1,17	cyclictest	2618921	-21	/usr/sbin/munin	23:50:11	0
2448828	99	54	21,10	cyclictest	2476544	-21	ntpq	20:55:36	1
2448828	99	54	20,7	cyclictest	2463685	-21	ntpq	20:05:30	1
2448828	99	54	20,7	cyclictest	2463685	-21	ntpq	20:05:29	1
2448828	99	54	19,11	cyclictest	0	-21	swapper/1	20:50:26	1
2448827	99	54	6,10	cyclictest	2448823	-21	awk	19:10:00	0
2448827	99	54	5,38	cyclictest	2650020	-21	ssh	00:25:35	0
2448827	99	54	32,7	cyclictest	2488564	-21	latency_hist	21:20:02	0
2448828	99	53	39,10	cyclictest	2457237	-21	ntpq	19:40:25	1
2448827	99	53	45,6	cyclictest	2530180	-21	kworker/u4:5+events_unbound	22:08:00	0
2448827	99	53	43,6	cyclictest	2648830	-21	modprobe	00:25:00	0
2448828	99	52	34,14	cyclictest	2468862	-21	ps	20:25:35	1
2448827	99	52	8,11	cyclictest	2514731	-21	latency_hist	21:50:01	0
2448827	99	52	44,6	cyclictest	2543304	-21	kworker/u4:15+events_unbound	22:31:21	0
2448827	99	52	44,6	cyclictest	2543304	-21	kworker/u4:15+events_unbound	22:31:21	0
2448827	99	52	40,8	cyclictest	2448826	-21	cyclictest	23:35:11	0
2448828	99	51	35,9	cyclictest	2450839	-21	ntpq	19:15:28	1
2448827	99	51	41,6	cyclictest	0	-21	swapper/0	22:20:24	0
2448828	99	50	36,9	cyclictest	2462373	-21	ntpq	20:00:27	1
2448828	99	50	36,10	cyclictest	2464318	-21	apt-get	20:10:15	1
2448828	99	50	35,11	cyclictest	2454798	-21	ps	19:30:34	1
2448828	99	50	29,13	cyclictest	2466149	-21	ntpq	20:15:26	1
2448827	99	50	42,6	cyclictest	2653679	-21	cpu	00:30:16	0
2448827	99	50	42,6	cyclictest	2459012	-21	kworker/u4:9+events_unbound	20:25:56	0
2448827	99	50	41,7	cyclictest	2594884	-21	kworker/u4:12+events_unbound	23:21:35	0
2448828	99	49	35,11	cyclictest	2452199	-21	ntpq	19:20:31	1
2448828	99	49	35,10	cyclictest	2470090	-21	ntpq	20:30:33	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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