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 Wed Jun 18, 2025 12:44:08)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
2354976	99	94	84,7	cyclictest	2467096	-21	kworker/u4:5+events_unbound	11:35:14	0
2354976	99	88	78,7	cyclictest	2453827	-21	kworker/u4:13+events_unbound	10:55:06	0
2354976	99	86	77,7	cyclictest	2437046	-21	kworker/u4:1+events_unbound	10:45:05	0
2354976	99	86	77,6	cyclictest	2404086	-21	kworker/u4:7+events_unbound	09:50:01	0
2354976	99	85	67,8	cyclictest	2518098	-21	kworker/u4:0+events_unbound	12:25:25	0
2354976	99	85	67,8	cyclictest	2518098	-21	kworker/u4:0+events_unbound	12:25:25	0
2354976	99	84	72,9	cyclictest	2496604	-21	kworker/u4:4+events_unbound	12:05:20	0
2354976	99	81	72,6	cyclictest	2378261	-21	kworker/u4:6+events_unbound	08:50:01	0
2354976	99	81	64,8	cyclictest	2488517	-21	kworker/u4:12+events_unbound	12:00:21	0
2354976	99	77	68,7	cyclictest	2361485	-21	kworker/u4:7+events_unbound	07:44:24	0
2354976	99	77	50,5	cyclictest	2488517	-21	kworker/u4:12+events_unbound	12:00:00	0
2354976	99	75	50,21	cyclictest	52	-21	kswapd0	09:50:06	0
2354979	99	73	36,9	cyclictest	0	-21	swapper/1	11:55:09	1
2354976	99	73	67,4	cyclictest	2496604	-21	kworker/u4:4+events_unbound	12:10:21	0
2354979	99	69	60,6	cyclictest	2453827	-21	kworker/u4:13+events_unbound	11:00:00	1
2354976	99	69	60,7	cyclictest	2373058	-21	kworker/u4:3+events_unbound	08:35:00	0
2354976	99	68	47,5	cyclictest	2440336	-21	kworker/u4:10+events_unbound	11:05:09	0
2354979	99	67	60,5	cyclictest	2518100	-21	kworker/u4:6+events_unbound	12:40:00	1
2354979	99	67	58,7	cyclictest	2488517	-21	kworker/u4:12+events_unbound	11:45:17	1
2354976	99	67	59,6	cyclictest	2447435	-21	kworker/u4:8+events_unbound	11:20:11	0
2354976	99	66	59,5	cyclictest	2447004	-21	kworker/u4:6+events_unbound	10:50:04	0
2354979	99	65	56,5	cyclictest	2518103	-21	kworker/u4:11+events_unbound	12:30:26	1
2354976	99	65	56,7	cyclictest	2463687	-21	kworker/u4:17+events_unbound	11:15:11	0
2354976	99	65	2,53	cyclictest	2352466	-21	kworker/u4:11+xprtiod	07:10:01	0
2354976	99	64	55,7	cyclictest	2477524	-21	kworker/u4:10+events_unbound	11:30:15	0
2354979	99	63	55,6	cyclictest	2433717	-21	kworker/u4:5+events_unbound	10:30:01	1
2354976	99	62	55,5	cyclictest	2339786	-21	kworker/u4:2+events_unbound	07:19:19	0
2354979	99	60	53,5	cyclictest	2407284	-21	kworker/u4:12+events_unbound	10:15:02	1
2354976	99	60	52,6	cyclictest	2358945	-21	kworker/u4:18+events_unbound	07:29:22	0
2354976	99	59	12,41	cyclictest	2422622	-21	ssh	10:05:34	0
2354976	99	58	47,8	cyclictest	2372764	-21	cat	08:15:39	0
2354976	99	58	1,13	cyclictest	2419247	-21	ntpq	10:00:29	0
2354976	99	57	49,5	cyclictest	2365320	-21	kworker/u4:13+events_unbound	08:29:35	0
2354976	99	57	45,9	cyclictest	0	-21	swapper/0	10:18:19	0
2354976	99	57	35,19	cyclictest	2490761	-21	gltestperf	11:45:22	0
2354976	99	57	2,27	cyclictest	2384706	-21	apt-get	09:05:09	0
2354979	99	56	51,3	cyclictest	2413906	-21	kworker/u4:9+events_unbound	10:09:56	1
2354979	99	56	48,6	cyclictest	2407284	-21	kworker/u4:12+events_unbound	09:55:04	1
2354979	99	56	48,6	cyclictest	2367949	-21	kworker/u4:9+events_unbound	09:14:44	1
2354976	99	56	49,5	cyclictest	2467102	-21	kworker/u4:12+events_unbound	11:12:04	0
2354976	99	56	49,5	cyclictest	2423554	-21	kworker/u4:7+events_unbound	10:14:56	0
2354979	99	55	38,9	cyclictest	2438500	-21	ssh	10:30:16	1
2354976	99	54	46,5	cyclictest	2401007	-21	kworker/u4:6+events_unbound	09:34:46	0
2354976	99	54	44,7	cyclictest	2441704	-21	sshd	10:35:00	0
2354979	99	53	46,5	cyclictest	2513814	-21	kworker/u4:2+events_unbound	12:22:00	1
2354979	99	53	46,5	cyclictest	2482493	-21	/usr/sbin/munin	11:35:14	1
2354976	99	53	46,5	cyclictest	2416891	-21	ssh	09:56:45	0
2354976	99	53	44,6	cyclictest	2389657	-21	/usr/sbin/munin	09:15:13	0
2354976	99	53	40,9	cyclictest	2365391	-21	latency_hist	07:50:01	0
2354976	99	53	31,20	cyclictest	2355509	-21	fschecks_time	07:10:34	0
2354979	99	52	45,5	cyclictest	2518102	-21	kworker/u4:8+events_unbound	12:20:01	1
2354976	99	52	6,31	cyclictest	2476279	-21	ssh	11:25:33	0
2354976	99	52	42,6	cyclictest	0	-21	swapper/0	09:25:31	0
2354976	99	52	39,9	cyclictest	0	-21	swapper/0	11:40:12	0
2354979	99	51	43,6	cyclictest	2442180	-21	df_abs	10:35:19	1
2354979	99	51	43,6	cyclictest	2428846	-21	df	10:15:21	1
2354976	99	51	42,6	cyclictest	2481035	-21	kworker/u4:2-events_unbound	11:50:17	0
2354976	99	51	32,11	cyclictest	2408213	-21	modprobe	09:45:00	0
2354976	99	51	2,7	cyclictest	2357606	-21	apt-get	07:20:08	0
2354979	99	50	42,6	cyclictest	2366686	-21	systemd	07:54:28	1
2354979	99	50	42,5	cyclictest	2453827	-21	kworker/u4:13+events_unbound	10:55:00	1
2354979	99	50	40,7	cyclictest	2496604	-21	kworker/u4:4+rpciod	12:10:25	1
2354979	99	50	31,15	cyclictest	0	-21	swapper/1	12:25:38	1
2354979	99	50	31,15	cyclictest	0	-21	swapper/1	12:25:38	1
2354976	99	50	40,6	cyclictest	2379583	-21	modprobe	08:45:00	0
2354976	99	50	37,8	cyclictest	2407284	-21	kworker/u4:12-nfsiod	10:25:26	0
2354976	99	50	33,10	cyclictest	0	-21	swapper/0	10:42:46	0
2354979	99	49	43,4	cyclictest	0	-21	swapper/1	11:05:07	1
2354979	99	49	42,5	cyclictest	2486358	-21	aten_r7power_en	11:40:17	1
2354979	99	49	42,5	cyclictest	2371257	-21	/usr/sbin/munin	08:10:25	1
2354979	99	49	42,4	cyclictest	2494632	-21	sh	11:50:17	1
2354976	99	49	26,20	cyclictest	0	-21	swapper/0	12:20:41	0
2354976	99	49	22,16	cyclictest	2531877	-21	ssh	12:34:10	0
2354976	99	49	19,25	cyclictest	2370544	-21	modprobe	08:10:00	0
2354979	99	48	41,5	cyclictest	0	-21	swapper/1	11:10:16	1
2354979	99	48	39,7	cyclictest	2365328	-21	systemd	07:49:27	1
2354976	99	48	40,6	cyclictest	2513816	-21	kworker/u4:9+events_unbound	12:35:25	0
2354976	99	48	31,15	cyclictest	255	50	irq/23-42890000.ethernet	07:50:09	0
2354979	99	47	22,18	cyclictest	2472512	-21	fschecks_count	11:20:21	1
2354976	99	47	38,7	cyclictest	2377515	-21	fschecks_time	08:35:21	0
2354976	99	47	38,6	cyclictest	2361267	-21	timerandwakeup	07:30:40	0
2354979	99	46	40,4	cyclictest	2459640	-21	timerandwakeup	11:00:40	1
2354979	99	46	39,5	cyclictest	2446360	-21	sendmail_mailqu	10:40:39	1
2354979	99	46	34,9	cyclictest	2477524	-21	kworker/u4:10+rpciod	11:30:13	1
2354976	99	46	37,6	cyclictest	2369047	-21	timerandwakeup	08:00:40	0
2354976	99	46	36,6	cyclictest	2383190	-21	timerwakeupswit	08:55:36	0
2354976	99	46	35,7	cyclictest	2432211	-21	fschecks_count	10:20:21	0
2354976	99	46	33,8	cyclictest	2371449	-21	processes	08:10:37	0
2354976	99	46	32,10	cyclictest	0	-21	swapper/0	09:20:15	0
2354979	99	45	40,3	cyclictest	2467096	-21	kworker/u4:5+events_unbound	11:25:15	1
2354979	99	45	39,4	cyclictest	2383119	-21	switchtime	08:55:36	1
2354979	99	45	38,5	cyclictest	392	-21	systemd-logind	12:09:04	1
2354979	99	45	38,5	cyclictest	2463688	-21	kworker/u4:18+events_unbound	11:20:01	1
2354979	99	45	38,5	cyclictest	2406540	-21	unixbench-2d	09:40:44	1
2354979	99	45	38,5	cyclictest	2376915	-21	unixbench_multi	08:30:38	1
2354979	99	45	37,6	cyclictest	2403075	-21	ldconfig	09:35:39	1
2354979	99	45	36,7	cyclictest	2384678	-21	systemd	09:04:40	1
2354979	99	45	36,6	cyclictest	2399217	-21	latency_hist	09:30:01	1
2354976	99	45	37,5	cyclictest	2368034	-21	latency_hist	08:00:01	0
2354976	99	45	36,6	cyclictest	2516165	-21	cut	12:15:23	0
2354976	99	45	34,7	cyclictest	2384793	-21	latency_hist	09:05:01	0
2354979	99	44	38,4	cyclictest	2381409	-21	gltestperf	08:50:20	1
2354979	99	44	38,4	cyclictest	2356295	-21	systemd	07:14:17	1
2354979	99	44	37,5	cyclictest	2503899	-21	ldconfig	12:00:30	1
2354979	99	44	36,6	cyclictest	2367948	-21	kworker/u4:6+events_unbound	07:59:30	1
2354976	99	44	31,7	cyclictest	247	50	irq/20-imx-lcdifv3-crtc.0	09:15:00	0
2354979	99	43	37,4	cyclictest	2449866	-21	sed	10:45:42	1
2354979	99	43	37,4	cyclictest	2374399	-21	modprobe	08:25:00	1
2354979	99	43	35,6	cyclictest	2369331	-21	latency_hist	08:05:01	1
2354979	99	43	35,5	cyclictest	2377246	-21	aten_r7power_cu	08:35:17	1
2354979	99	43	34,7	cyclictest	2373059	-21	kworker/u4:14+events_unbound	08:20:01	1
2354979	99	43	34,7	cyclictest	2357699	-21	latency_hist	07:20:01	1
2354979	99	43	29,11	cyclictest	1061	-21	snmpd	07:20:38	1
2354976	99	43	35,5	cyclictest	2367947	-21	kworker/u4:5-rpciod	08:25:01	0
2354976	99	43	33,7	cyclictest	2443004	-21	timerwakeupswit	10:35:41	0
2354979	99	42	36,4	cyclictest	2361496	-21	systemd	07:34:21	1
2354979	99	42	35,5	cyclictest	2370568	-21	idleruntime-cro	08:10:00	1
2354979	99	42	35,5	cyclictest	2364111	-21	latency_hist	07:45:01	1
2354979	99	42	34,5	cyclictest	2412540	-21	/usr/sbin/munin	09:50:27	1
2354979	99	42	33,6	cyclictest	0	-21	swapper/1	10:20:22	1
2354979	99	42	32,7	cyclictest	0	-21	swapper/1	09:20:28	1
2354976	99	42	33,7	cyclictest	2403322	-21	timerwakeupswit	09:35:42	0
2354979	99	41	34,5	cyclictest	2389901	-21	df_abs	09:15:19	1
2354979	99	41	31,8	cyclictest	2378834	-21	fschecks_time	08:40:22	1
2354979	99	41	30,8	cyclictest	2416791	-21	kworker/u4:14+rpciod	10:00:29	1
2354976	99	41	33,4	cyclictest	2382130	-21	kworker/u4:6	08:55:00	0
2354979	99	40	32,6	cyclictest	0	-21	swapper/1	07:35:17	1
2354979	99	40	29,9	cyclictest	2399451	-21	cpu	09:30:28	1
2354976	99	40	27,8	cyclictest	0	-21	swapper/0	11:00:36	0
2354979	99	39	6,28	cyclictest	2386068	-21	diskmemload	09:45:31	1
2354979	99	39	32,4	cyclictest	0	-21	swapper/1	07:10:01	1
2354979	99	39	31,5	cyclictest	0	-21	swapper/1	08:50:00	1
2354979	99	39	29,7	cyclictest	0	-21	swapper/1	08:25:25	1
2354976	99	39	30,7	cyclictest	2362654	-21	unixbench_multi	07:35:41	0
2354979	99	38	29,5	cyclictest	0	-21	swapper/1	09:05:29	1
2354979	99	38	28,8	cyclictest	0	-21	swapper/1	07:25:20	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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