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 Thu Jan 29, 2026 12:44:10)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
2230605	99	123	111,8	cyclictest	2403449	-21	kworker/u4:0+events_unbound	11:56:10	0
2230605	99	92	84,5	cyclictest	2281253	-21	kworker/u4:3+events_unbound	10:05:46	0
2230605	99	92	81,7	cyclictest	2257331	-21	kworker/u4:5+events_unbound	09:10:38	0
2230607	99	90	81,6	cyclictest	2338690	-21	kworker/u4:3+events_unbound	10:40:50	1
2230605	99	83	75,5	cyclictest	2368913	-21	kworker/u4:2+events_unbound	11:21:04	0
2230605	99	81	74,5	cyclictest	2377756	-21	kworker/u4:3+events_unbound	11:40:01	0
2230607	99	77	68,7	cyclictest	2289598	-21	kworker/u4:6+events_unbound	09:55:44	1
2230607	99	77	68,7	cyclictest	2289598	-21	kworker/u4:6+events_unbound	09:55:43	1
2230607	99	76	43,30	cyclictest	2353813	-21	/usr/sbin/munin	10:55:15	1
2230607	99	74	41,31	cyclictest	2327755	-21	ssh	10:25:17	1
2230607	99	73	40,30	cyclictest	2333187	-21	rm	10:30:42	1
2230607	99	73	29,40	cyclictest	0	-21	swapper/1	09:45:33	1
2230605	99	73	63,7	cyclictest	2429182	-21	kworker/u4:3+events_unbound	12:26:13	0
2230607	99	72	30,5	cyclictest	0	-21	swapper/1	09:45:02	1
2230605	99	72	63,7	cyclictest	2252282	-21	kworker/u4:10+events_unbound	08:40:28	0
2230605	99	72	63,6	cyclictest	2347537	-21	kworker/u4:8+events_unbound	10:55:54	0
2230607	99	71	3,24	cyclictest	2310728	-21	ssh	10:05:27	1
2230605	99	71	63,6	cyclictest	2312589	-21	kworker/u4:4+events_unbound	10:20:46	0
2230605	99	71	63,5	cyclictest	0	-21	swapper/0	11:25:27	0
2230607	99	70	37,31	cyclictest	2259819	-21	grep	09:00:37	1
2230605	99	70	57,9	cyclictest	2358540	-21	gltestperf	11:00:20	0
2230607	99	69	32,34	cyclictest	0	-21	swapper/1	11:10:22	1
2230607	99	69	31,6	cyclictest	0	-21	swapper/1	12:20:38	1
2230605	99	69	59,7	cyclictest	2294730	-21	kworker/u4:1+events_unbound	09:50:42	0
2230605	99	69	59,7	cyclictest	2294730	-21	kworker/u4:1+events_unbound	09:50:42	0
2230607	99	68	37,29	cyclictest	2405406	-21	munin-run	11:55:00	1
2230607	99	68	33,32	cyclictest	0	-21	swapper/1	11:30:32	1
2230607	99	68	33,31	cyclictest	0	-21	swapper/1	10:50:20	1
2230607	99	68	31,34	cyclictest	2388484	-21	aten_r7power_en	11:35:15	1
2230607	99	68	26,6	cyclictest	0	-21	swapper/1	12:00:04	1
2230607	99	67	34,31	cyclictest	2236201	-21	fschecks_time	07:30:25	1
2230607	99	67	34,30	cyclictest	2440370	-21	basename	12:35:17	1
2230605	99	67	59,6	cyclictest	2281252	-21	kworker/u4:1+events_unbound	09:35:41	0
2230607	99	66	34,29	cyclictest	2423140	-21	cpu	12:15:14	1
2230607	99	66	30,4	cyclictest	0	-21	swapper/1	10:35:22	1
2230607	99	66	28,5	cyclictest	0	-21	swapper/1	08:50:14	1
2230605	99	65	56,6	cyclictest	2222235	-21	kworker/u4:6+events_unbound	07:50:12	0
2230607	99	64	31,5	cyclictest	0	-21	swapper/1	11:45:20	1
2230607	99	64	30,5	cyclictest	2363061	-21	sshd	11:05:22	1
2230607	99	64	30,5	cyclictest	2230604	-21	cyclictest	12:05:29	1
2230607	99	64	29,6	cyclictest	2260485	-21	head	09:05:21	1
2230605	99	64	56,6	cyclictest	2329837	-21	kworker/u4:12+events_unbound	10:30:48	0
2230607	99	63	33,4	cyclictest	0	-21	swapper/1	08:20:21	1
2230607	99	63	31,28	cyclictest	0	-21	swapper/1	08:40:34	1
2230607	99	63	28,6	cyclictest	0	-21	swapper/1	11:25:27	1
2230607	99	63	28,6	cyclictest	0	-21	swapper/1	10:20:33	1
2230605	99	63	55,6	cyclictest	2407845	-21	kworker/u4:7+events_unbound	12:01:11	0
2230607	99	62	29,4	cyclictest	2233117	-21	idleruntime-cro	07:20:00	1
2230607	99	62	26,9	cyclictest	0	-21	swapper/1	10:00:27	1
2230605	99	62	53,7	cyclictest	2364527	-21	kworker/u4:10+events_unbound	11:10:12	0
2230607	99	61	53,5	cyclictest	2242094	-21	kworker/u4:17+events_unbound	08:00:17	1
2230607	99	61	30,28	cyclictest	0	-21	swapper/1	11:55:06	1
2230607	99	61	29,5	cyclictest	0	-21	swapper/1	12:30:31	1
2230607	99	61	27,5	cyclictest	0	-21	swapper/1	09:55:02	1
2230607	99	61	27,5	cyclictest	0	-21	swapper/1	09:55:01	1
2230607	99	60	53,5	cyclictest	2231820	-21	kworker/u4:5+events_unbound	07:15:01	1
2230607	99	60	51,7	cyclictest	2230604	-21	cyclictest	10:10:16	1
2230607	99	60	30,5	cyclictest	2240591	-21	switchtime	07:45:35	1
2230607	99	60	29,6	cyclictest	0	-21	swapper/1	11:00:16	1
2230605	99	60	51,6	cyclictest	2425426	-21	kworker/u4:2+events_unbound	12:20:23	0
2230605	99	60	50,7	cyclictest	2250419	-21	sd-accept	08:25:24	0
2230607	99	59	52,5	cyclictest	2267109	-21	/usr/sbin/munin	09:15:40	1
2230607	99	59	29,6	cyclictest	0	-21	swapper/1	09:30:17	1
2230605	99	59	51,6	cyclictest	2228133	-21	kworker/u4:0+events_unbound	07:40:14	0
2230605	99	59	47,8	cyclictest	2255326	-21	fschecks_time	08:45:19	0
2230605	99	59	47,8	cyclictest	2255326	-21	fschecks_time	08:45:19	0
2230607	99	58	50,6	cyclictest	2403453	-21	kworker/u4:5+events_unbound	12:11:14	1
2230607	99	58	47,9	cyclictest	2375773	-21	fschecks_count	11:20:18	1
2230605	99	58	48,7	cyclictest	2252282	-21	kworker/u4:10+events_unbound	08:35:28	0
2230605	99	58	46,8	cyclictest	2327914	-21	/usr/sbin/munin	10:25:20	0
2230605	99	58	39,10	cyclictest	0	-21	swapper/0	08:55:00	0
2230605	99	57	50,5	cyclictest	2199119	-21	kworker/u4:12+events_unbound	08:35:01	0
2230605	99	57	49,6	cyclictest	2257336	-21	kworker/u4:13+events_unbound	08:55:36	0
2230605	99	56	46,8	cyclictest	54	-21	kswapd0	12:40:01	0
2230605	99	56	10,36	cyclictest	2419463	-21	ntpq	12:10:29	0
2230607	99	55	25,6	cyclictest	2320080	-21	unixbench_singl	10:15:37	1
2230607	99	55	25,6	cyclictest	2320080	-21	unixbench_singl	10:15:37	1
2230605	99	55	47,6	cyclictest	2180059	-21	kworker/u4:10+events_unbound	07:30:08	0
2230605	99	55	42,11	cyclictest	2397385	-21	fschecks_count	11:45:19	0
2230607	99	54	44,7	cyclictest	2233603	-21	cut	07:20:19	1
2230605	99	54	45,6	cyclictest	2334275	-21	kworker/u4:4+events_unbound	10:37:42	0
2230605	99	54	44,7	cyclictest	2414348	-21	dpkg	12:05:12	0
2230605	99	54	43,8	cyclictest	2288414	-21	/usr/sbin/munin	09:40:18	0
2230605	99	54	34,17	cyclictest	0	-21	swapper/0	09:20:11	0
2230607	99	53	46,5	cyclictest	2231820	-21	kworker/u4:5+events_unbound	07:40:11	1
2230605	99	53	45,6	cyclictest	2355722	-21	kworker/u4:3+events_unbound	11:06:00	0
2230605	99	53	37,11	cyclictest	2295941	-21	ssh	09:49:08	0
2230605	99	52	45,5	cyclictest	2281253	-21	kworker/u4:3+events_unbound	10:04:00	0
2230605	99	52	41,8	cyclictest	2401560	-21	cpu	11:50:18	0
2230605	99	52	40,9	cyclictest	2246367	-21	systemd	08:10:19	0
2230605	99	52	38,9	cyclictest	255	50	irq/23-42890000.ethernet	07:20:00	0
2230607	99	51	45,4	cyclictest	2393712	-21	mailstats	11:40:37	1
2230607	99	51	44,5	cyclictest	2268437	-21	kworker/u4:7+events_unbound	09:25:39	1
2230607	99	51	43,6	cyclictest	2268437	-21	kworker/u4:7+events_unbound	09:20:40	1
2230605	99	51	39,8	cyclictest	2384238	-21	aten_r7power_vo	11:30:15	0
2230607	99	50	39,8	cyclictest	0	-21	swapper/1	12:25:13	1
2230605	99	50	41,6	cyclictest	2319471	-21	ntpq	10:15:23	0
2230605	99	50	41,6	cyclictest	2319471	-21	ntpq	10:15:23	0
2230605	99	50	29,5	cyclictest	0	-21	swapper/0	07:20:35	0
2230605	99	49	42,4	cyclictest	2320893	-21	kworker/u4:2-writeback	10:50:02	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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