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 highest latencies:

System rack7slot2.osadl.org (updated Sat Dec 20, 2025 12:44:14)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
2358428	99	100	89,8	cyclictest	2446270	-21	kworker/u4:1+events_unbound	10:20:16	0
2358428	99	100	89,8	cyclictest	2446270	-21	kworker/u4:1+events_unbound	10:20:15	0
2358428	99	98	77,16	cyclictest	2358375	-21	cron	07:10:01	0
2358428	99	98	77,16	cyclictest	2358375	-21	cron	07:10:01	0
2358428	99	95	86,6	cyclictest	2357161	-21	kworker/u4:8+events_unbound	07:15:17	0
2358428	99	89	77,8	cyclictest	2371246	-21	kworker/u4:16+events_unbound	08:00:30	0
2358428	99	86	78,6	cyclictest	2421518	-21	kworker/u4:0+events_unbound	10:00:59	0
2358428	99	81	73,6	cyclictest	2487603	-21	kworker/u4:3+events_unbound	11:26:12	0
2358428	99	80	61,5	cyclictest	2483479	-21	kworker/u4:12+events_unbound	11:06:08	0
2358428	99	75	57,13	cyclictest	53	-21	kswapd0	09:45:13	0
2358428	99	74	4,59	cyclictest	2543532	-21	ssh	12:15:31	0
2358428	99	71	6,55	cyclictest	2559993	-21	ssh	12:35:35	0
2358428	99	71	63,6	cyclictest	2425763	-21	kworker/u4:13+events_unbound	09:55:58	0
2358428	99	68	60,6	cyclictest	53	-21	kswapd0	11:30:13	0
2358431	99	65	50,9	cyclictest	37	-21	kcompactd0	11:53:22	1
2358428	99	65	58,5	cyclictest	2369973	-21	kworker/u4:12+events_unbound	08:05:32	0
2358428	99	65	57,6	cyclictest	2425172	-21	kworker/u4:11+events_unbound	10:06:00	0
2358428	99	64	55,6	cyclictest	2357159	-21	kworker/u4:6+events_unbound	07:10:14	0
2358431	99	62	25,11	cyclictest	2421776	-21	ssh	09:48:00	1
2358431	99	62	24,12	cyclictest	2545454	-21	ssh	12:18:04	1
2358428	99	62	54,6	cyclictest	2371245	-21	kworker/u4:15+events_unbound	08:30:01	0
2358428	99	62	53,7	cyclictest	2511948	-21	kworker/u4:17+events_unbound	11:41:18	0
2358428	99	61	53,6	cyclictest	2463174	-21	kworker/u4:6+events_unbound	10:57:00	0
2358431	99	60	53,5	cyclictest	2495877	-21	kworker/u4:6+events_unbound	11:46:19	1
2358431	99	60	51,6	cyclictest	2559504	-21	fschecks_count	12:35:22	1
2358431	99	60	23,13	cyclictest	2558479	-21	ssh	12:34:22	1
2358431	99	60	18,16	cyclictest	2479935	-21	ssh	10:58:07	1
2358428	99	60	39,19	cyclictest	2402872	-21	/usr/sbin/munin	09:25:24	0
2358431	99	59	22,14	cyclictest	2451922	-21	ssh	10:24:42	1
2358431	99	59	22,14	cyclictest	2451922	-21	ssh	10:24:42	1
2358431	99	59	21,11	cyclictest	2413961	-21	ssh	09:38:57	1
2358431	99	59	20,15	cyclictest	2397096	-21	ssh	09:18:53	1
2358431	99	59	20,15	cyclictest	2397096	-21	ssh	09:18:52	1
2358431	99	59	20,14	cyclictest	2496095	-21	ssh	11:17:49	1
2358431	99	59	19,15	cyclictest	2475303	-21	ssh	10:52:02	1
2358431	99	59	19,15	cyclictest	2433590	-21	ssh	10:01:47	1
2358431	99	59	18,16	cyclictest	2446125	-21	ssh	10:16:58	1
2358431	99	59	18,14	cyclictest	2455338	-21	ssh	10:28:23	1
2358428	99	59	53,4	cyclictest	53	-21	kswapd0	11:35:14	0
2358431	99	58	21,13	cyclictest	2400826	-21	ssh	09:23:07	1
2358431	99	58	21,11	cyclictest	2491845	-21	ssh	11:12:28	1
2358431	99	58	20,10	cyclictest	2526305	-21	ssh	11:55:08	1
2358431	99	58	20,10	cyclictest	2526305	-21	ssh	11:55:07	1
2358431	99	58	19,15	cyclictest	2408929	-21	ssh	09:32:33	1
2358431	99	58	19,14	cyclictest	2546784	-21	ssh	12:20:05	1
2358431	99	58	19,12	cyclictest	2483823	-21	ssh	11:02:45	1
2358431	99	58	19,11	cyclictest	2471396	-21	ssh	10:47:29	1
2358431	99	58	19,11	cyclictest	2442494	-21	ssh	10:12:54	1
2358431	99	58	19,11	cyclictest	2442494	-21	ssh	10:12:54	1
2358431	99	58	18,16	cyclictest	2542032	-21	ssh	12:14:16	1
2358431	99	57	19,15	cyclictest	2553704	-21	ssh	12:28:07	1
2358431	99	57	19,11	cyclictest	2538338	-21	ssh	12:09:54	1
2358431	99	57	19,11	cyclictest	2417778	-21	ssh	09:43:16	1
2358431	99	57	19,10	cyclictest	2467524	-21	ssh	10:42:55	1
2358431	99	57	18,11	cyclictest	2430784	-21	ssh	09:59:06	1
2358431	99	57	17,15	cyclictest	2497588	-21	ssh	11:20:07	1
2358431	99	57	16,15	cyclictest	2533684	-21	ssh	12:03:54	1
2358428	99	57	49,6	cyclictest	2377667	-21	kworker/u4:9+events_unbound	08:55:50	0
2358431	99	56	20,10	cyclictest	2405114	-21	ssh	09:28:14	1
2358431	99	56	18,13	cyclictest	2437386	-21	ssh	10:06:11	1
2358428	99	56	18,30	cyclictest	0	-21	swapper/0	09:05:11	0
2358431	99	55	19,10	cyclictest	2504648	-21	ssh	11:28:24	1
2358431	99	55	18,10	cyclictest	2507617	-21	ssh	11:31:27	1
2358431	99	55	18,10	cyclictest	2463790	-21	ssh	10:38:40	1
2358431	99	55	17,12	cyclictest	2424858	-21	ssh	09:51:06	1
2358431	99	55	17,10	cyclictest	2459844	-21	ssh	10:34:02	1
2358428	99	55	44,8	cyclictest	2370360	-21	df	07:55:18	0
2358428	99	54	7,4	cyclictest	0	-21	swapper/0	10:45:09	0
2358428	99	54	47,5	cyclictest	2377666	-21	kworker/u4:8+events_unbound	08:30:44	0
2358428	99	54	46,6	cyclictest	2487600	-21	kworker/u4:0+events_unbound	11:15:15	0
2358428	99	54	46,6	cyclictest	2437843	-21	kworker/u4:17+events_unbound	10:16:02	0
2358428	99	54	46,6	cyclictest	2408733	-21	kworker/u4:2+events_unbound	09:50:56	0
2358428	99	54	45,7	cyclictest	2389548	-21	/usr/sbin/munin	09:10:13	0
2358428	99	54	42,7	cyclictest	2382784	-21	modprobe	08:44:59	0
2358428	99	54	40,12	cyclictest	2524484	-21	kworker/u4:7+events_unbound	12:00:01	0
2358428	99	54	40,12	cyclictest	2524484	-21	kworker/u4:7+events_unbound	12:00:01	0
2358428	99	54	36,16	cyclictest	2461929	-21	unixbench-2d	10:35:40	0
2358431	99	53	17,11	cyclictest	2374601	-21	ntpq	08:10:28	1
2358431	99	53	16,14	cyclictest	2487054	-21	ssh	11:06:16	1
2358428	99	53	44,6	cyclictest	2532851	-21	kworker/u4:6+events_unbound	12:31:26	0
2358428	99	53	43,7	cyclictest	2450517	-21	kworker/u4:3+events_unbound	10:40:14	0
2358431	99	52	20,9	cyclictest	2380946	-21	ntpq	08:35:27	1
2358431	99	52	17,11	cyclictest	2392091	-21	ssh	09:12:38	1
2358431	99	52	15,11	cyclictest	2511734	-21	ssh	11:36:30	1
2358431	99	51	43,5	cyclictest	2359686	-21	sh	07:15:00	1
2358431	99	51	41,5	cyclictest	2360953	-21	kworker/u4:2	07:20:00	1
2358431	99	51	36,10	cyclictest	2377291	-21	ps	08:20:36	1
2358428	99	51	43,6	cyclictest	2366050	-21	kworker/u4:10+events_unbound	07:55:00	0
2358428	99	51	33,16	cyclictest	2538529	-21	latency_hist	12:10:01	0
2358431	99	50	42,6	cyclictest	397	-21	systemd-logind	08:15:39	1
2358431	99	50	36,9	cyclictest	2382357	-21	ntpq	08:40:34	1
2358431	99	50	19,8	cyclictest	2368744	-21	cat	07:50:02	1
2358428	99	50	43,5	cyclictest	2547164	-21	df_abs	12:20:21	0
2358428	99	50	42,6	cyclictest	2524482	-21	kworker/u4:4+events_unbound	12:11:42	0
2358431	99	49	4,36	cyclictest	2514801	-21	ssh	11:40:29	1
2358431	99	49	29,16	cyclictest	2387338	-21	ntpq	09:00:23	1
2358431	99	49	21,4	cyclictest	2371469	-21	apt-get	08:00:17	1
2358428	99	49	42,5	cyclictest	2398234	-21	aten_r7power_vo	09:20:18	0
2358431	99	48	16,10	cyclictest	2364366	-21	ntpq	07:30:37	1
2358428	99	48	41,5	cyclictest	2507797	-21	kworker/u4:15-rpciod	11:45:35	0
2358428	99	48	41,5	cyclictest	2473644	-21	gltestperf	10:50:22	0
2358428	99	48	41,5	cyclictest	2358427	-21	cyclictest	11:14:55	0
2358428	99	48	40,6	cyclictest	2487600	-21	kworker/u4:0+events_unbound	11:21:12	0
2358428	99	48	39,7	cyclictest	2507798	-21	kworker/u4:16+events_unbound	11:51:17	0
2358428	99	48	39,6	cyclictest	2485126	-21	kworker/u4:5	11:05:01	0
2358428	99	48	39,5	cyclictest	0	-21	swapper/0	09:35:31	0
2358428	99	48	29,17	cyclictest	0	-21	swapper/0	09:15:20	0
2358428	99	48	29,17	cyclictest	0	-21	swapper/0	09:15:20	0
2358428	99	48	24,20	cyclictest	2377718	-21	grep	08:25:00	0
2358431	99	47	41,4	cyclictest	2371285	-21	latency_hist	07:59:59	1
2358428	99	47	39,6	cyclictest	2386580	-21	kworker/u4:1+events_unbound	09:05:00	0
2358428	99	47	38,7	cyclictest	2425172	-21	kworker/u4:11+events_unbound	10:11:08	0
2358428	99	47	38,7	cyclictest	2425172	-21	kworker/u4:11+events_unbound	10:11:08	0
2358431	99	46	39,5	cyclictest	2378845	-21	unixbench_multi	08:25:38	1
2358431	99	46	31,10	cyclictest	2383502	-21	ntpq	08:45:24	1
2358431	99	46	30,12	cyclictest	1058	-21	snmpd	08:32:49	1
2358431	99	46	15,7	cyclictest	2369542	-21	ntp_states	07:50:37	1
2358428	99	46	42,3	cyclictest	2540531	-21	kworker/u4:8+events_unbound	12:26:43	0
2358428	99	46	35,9	cyclictest	0	-21	swapper/0	10:30:32	0
2358428	99	46	28,16	cyclictest	0	-21	swapper/0	09:45:01	0
2358431	99	45	34,5	cyclictest	2365706	-21	ps	07:35:36	1
2358431	99	45	31,11	cyclictest	2361759	-21	ntpq	07:20:29	1
2358431	99	45	30,12	cyclictest	2384802	-21	ntpq	08:50:27	1
2358428	99	45	35,7	cyclictest	2530648	-21	aten_r7power_po	12:00:16	0
2358428	99	45	34,7	cyclictest	0	-21	swapper/0	09:30:51	0
2358431	99	44	32,7	cyclictest	0	-21	swapper/1	08:55:28	1
2358431	99	44	25,15	cyclictest	2363024	-21	ntpq	07:25:32	1
2358431	99	44	13,9	cyclictest	2366872	-21	ntpq	07:40:29	1
2358428	99	44	36,5	cyclictest	2374717	-21	grep	08:10:37	0
2358428	99	44	33,8	cyclictest	2450519	-21	kworker/u4:4+events_unbound	10:26:44	0
2358428	99	43	37,4	cyclictest	2353359	-21	kworker/u4:1+events_unbound	07:45:01	0
2358428	99	43	36,5	cyclictest	2365282	-21	fschecks_time	07:35:21	0
2358428	99	43	36,5	cyclictest	2361486	-21	fschecks_time	07:20:21	0
2358428	99	43	35,5	cyclictest	0	-21	swapper/0	07:30:00	0
2358431	99	42	26,12	cyclictest	2373390	-21	ntpq	08:05:33	1
2358428	99	42	32,7	cyclictest	2375347	-21	aten_r7power_en	08:15:16	0
2358431	99	41	28,9	cyclictest	2388753	-21	ntpq	09:05:32	1
2358428	99	41	33,6	cyclictest	2383231	-21	fschecks_count	08:45:19	0
2358428	99	40	31,6	cyclictest	2384286	-21	aten_r7power_cu	08:50:18	0
2358428	99	40	1,17	cyclictest	2364808	-21	awk	07:35:00	0
2358428	99	39	32,5	cyclictest	2380407	-21	aten2__	08:35:18	0
2358431	99	37	21,11	cyclictest	2358508	-21	latency_hist	07:10:02	1
2358431	99	37	21,11	cyclictest	2358508	-21	latency_hist	07:10:01	1
2358428	99	37	29,6	cyclictest	2366303	-21	aten_r7power_cu	07:40:17	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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