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 376 highest latencies:

System rack7slot2.osadl.org (updated Mon Dec 08, 2025 00:44:05)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
2364608	99	136	128,6	cyclictest	2417809	-21	kworker/u4:3+events_unbound	21:42:35	0
2364608	99	126	119,5	cyclictest	2482655	-21	kworker/u4:2+events_unbound	22:57:48	0
2364608	99	122	116,4	cyclictest	2426603	-21	kworker/u4:17+events_unbound	22:07:40	0
2364608	99	119	97,5	cyclictest	2434171	-21	kworker/u4:4+events_unbound	22:12:40	0
2364608	99	114	106,6	cyclictest	2478646	-21	kworker/u4:17+events_unbound	22:52:46	0
2364608	99	113	104,6	cyclictest	2482654	-21	kworker/u4:1+events_unbound	23:17:51	0
2364608	99	113	104,6	cyclictest	2482654	-21	kworker/u4:1+events_unbound	23:17:51	0
2364608	99	112	85,25	cyclictest	53	-21	kswapd0	23:40:08	0
2364608	99	112	105,5	cyclictest	2397860	-21	kworker/u4:7+events_unbound	21:12:29	0
2364608	99	112	103,7	cyclictest	2548731	-21	kworker/u4:4+events_unbound	00:28:04	0
2364608	99	111	103,6	cyclictest	2548729	-21	kworker/u4:1+events_unbound	00:23:53	0
2364608	99	111	101,7	cyclictest	2486702	-21	kworker/u4:4+events_unbound	23:22:54	0
2364608	99	110	101,7	cyclictest	2558848	-21	kworker/u4:0+events_unbound	00:39:01	0
2364608	99	104	97,5	cyclictest	2371005	-21	kworker/u4:11+events_unbound	19:52:17	0
2364608	99	104	96,6	cyclictest	2538365	-21	kworker/u4:8+events_unbound	00:33:05	0
2364608	99	103	95,6	cyclictest	2514920	-21	kworker/u4:3+events_unbound	23:37:57	0
2364608	99	100	92,6	cyclictest	2438275	-21	kworker/u4:2+events_unbound	22:02:37	0
2364609	99	99	94,3	cyclictest	2449896	-21	kworker/u4:11+events_unbound	22:22:41	1
2364608	99	98	90,6	cyclictest	2490813	-21	kworker/u4:10+events_unbound	23:12:53	0
2364608	99	97	90,5	cyclictest	2527248	-21	kworker/u4:6+events_unbound	00:08:22	0
2364608	99	97	90,5	cyclictest	2382617	-21	kworker/u4:9+events_unbound	20:17:24	0
2364608	99	97	88,7	cyclictest	2392926	-21	kworker/u4:5+events_unbound	20:57:27	0
2364609	99	95	83,10	cyclictest	2406407	-21	sshd	21:22:30	1
2364608	99	91	83,6	cyclictest	2470484	-21	kworker/u4:11+events_unbound	22:42:43	0
2364608	99	90	83,5	cyclictest	2486701	-21	kworker/u4:3+events_unbound	23:02:47	0
2364608	99	90	83,5	cyclictest	2371005	-21	kworker/u4:11+events_unbound	19:47:16	0
2364608	99	85	71,6	cyclictest	2377445	-21	kworker/u4:4+events_unbound	19:57:22	0
2364609	99	83	73,7	cyclictest	2387789	-21	kworker/u4:3+events_unbound	20:42:25	1
2364608	99	82	74,6	cyclictest	2369724	-21	kworker/u4:7+events_unbound	19:42:21	0
2364608	99	81	74,5	cyclictest	2519101	-21	kworker/u4:5+events_unbound	23:52:01	0
2364608	99	81	73,6	cyclictest	2449896	-21	kworker/u4:11+events_unbound	22:22:42	0
2364609	99	79	71,6	cyclictest	2442303	-21	kworker/u4:6+events_unbound	22:17:39	1
2364608	99	79	73,4	cyclictest	2363320	-21	kworker/u4:3+events_unbound	19:12:17	0
2364608	99	79	66,6	cyclictest	2381324	-21	kworker/u4:6+events_unbound	20:27:26	0
2364609	99	77	68,7	cyclictest	2434172	-21	kworker/u4:5+events_unbound	21:57:37	1
2364608	99	77	70,5	cyclictest	2458726	-21	kworker/u4:8+events_unbound	22:32:44	0
2364609	99	74	67,5	cyclictest	2523182	-21	kworker/u4:4+events_unbound	23:47:12	1
2364609	99	73	65,6	cyclictest	2406113	-21	kworker/u4:2+events_unbound	21:52:38	1
2364608	99	73	66,5	cyclictest	2519102	-21	kworker/u4:10+events_unbound	23:46:09	0
2364609	99	70	62,6	cyclictest	2542014	-21	kworker/u4:13+events_unbound	00:12:04	1
2364609	99	70	62,6	cyclictest	2406118	-21	kworker/u4:12+events_unbound	21:47:37	1
2364608	99	70	64,4	cyclictest	2507188	-21	kworker/u4:2+events_unbound	23:30:01	0
2364608	99	70	58,5	cyclictest	2486701	-21	kworker/u4:3+events_unbound	23:10:00	0
2364609	99	69	62,4	cyclictest	2350618	-21	kworker/u4:9+events_unbound	19:20:02	1
2364609	99	69	3,22	cyclictest	2537460	-21	ssh	00:05:33	1
2364608	99	68	2,53	cyclictest	2473380	-21	ssh	22:45:31	0
2364609	99	67	29,36	cyclictest	2406113	-21	kworker/u4:2-rpciod	21:30:40	1
2364609	99	67	28,35	cyclictest	0	-21	swapper/1	23:30:25	1
2364609	99	67	2,50	cyclictest	2529832	-21	ssh	23:55:31	1
2364609	99	66	61,3	cyclictest	2542015	-21	kworker/u4:14+events_unbound	00:17:59	1
2364609	99	66	59,5	cyclictest	2548732	-21	kworker/u4:5+events_unbound	00:28:57	1
2364608	99	66	58,6	cyclictest	2383929	-21	kworker/u4:17+events_unbound	20:37:26	0
2364608	99	66	58,6	cyclictest	2367131	-21	kworker/u4:2+events_unbound	19:32:17	0
2364609	99	65	27,35	cyclictest	2437334	-21	/usr/sbin/munin	22:00:40	1
2364609	99	65	26,35	cyclictest	0	-21	swapper/1	21:40:31	1
2364609	99	64	35,27	cyclictest	2553958	-21	aten_r7power_po	00:30:16	1
2364608	99	64	51,6	cyclictest	2527249	-21	kworker/u4:7+events_unbound	00:18:49	0
2364609	99	63	3,12	cyclictest	2517002	-21	ssh	23:40:09	1
2364609	99	63	28,32	cyclictest	0	-21	swapper/1	00:20:30	1
2364609	99	63	25,33	cyclictest	0	-21	swapper/1	23:15:33	1
2364609	99	63	25,33	cyclictest	0	-21	swapper/1	23:15:32	1
2364609	99	62	36,24	cyclictest	2445370	-21	timerandwakeup	22:10:39	1
2364608	99	62	54,5	cyclictest	15	1	ktimers/0	21:52:32	0
2364609	99	61	5,9	cyclictest	2481344	-21	ssh	22:55:32	1
2364609	99	61	3,16	cyclictest	2383958	-21	modprobe	20:25:00	1
2364609	99	61	30,28	cyclictest	0	-21	swapper/1	22:05:19	1
2364609	99	61	30,27	cyclictest	0	-21	swapper/1	22:50:28	1
2364609	99	61	2,9	cyclictest	2473507	-21	ntpq	22:45:37	1
2364609	99	61	29,28	cyclictest	0	-21	swapper/1	20:35:02	1
2364609	99	61	26,31	cyclictest	0	-21	swapper/1	23:05:33	1
2364608	99	61	3,5	cyclictest	2399749	-21	apt-get	21:15:09	0
2364609	99	60	51,6	cyclictest	2442303	-21	kworker/u4:6+events_unbound	22:37:43	1
2364609	99	60	35,22	cyclictest	2368961	-21	fschecks_time	19:25:23	1
2364609	99	60	31,25	cyclictest	2382621	-21	kworker/u4:14-rpciod	21:10:32	1
2364609	99	60	28,27	cyclictest	0	-21	swapper/1	22:40:16	1
2364609	99	60	27,30	cyclictest	0	-21	swapper/1	23:20:35	1
2364609	99	60	2,13	cyclictest	2485284	-21	ssh	23:00:29	1
2364609	99	60	2,12	cyclictest	2394528	-21	apt-get	21:05:15	1
2364608	99	60	2,28	cyclictest	2509494	-21	ntpq	23:30:29	0
2364609	99	59	50,7	cyclictest	2418369	-21	kworker/u4:7+events_unbound	21:37:34	1
2364609	99	59	4,10	cyclictest	2408803	-21	ntpq	21:25:29	1
2364609	99	59	28,28	cyclictest	0	-21	swapper/1	00:00:37	1
2364609	99	59	26,30	cyclictest	0	-21	swapper/1	23:50:30	1
2364609	99	59	25,30	cyclictest	2482655	-21	kworker/u4:2-rpciod	23:10:37	1
2364609	99	59	20,35	cyclictest	2556855	-21	sh	00:35:02	1
2364608	99	59	44,12	cyclictest	2406118	-21	kworker/u4:12+events_unbound	21:39:39	0
2364609	99	58	4,25	cyclictest	2457267	-21	ssh	22:25:34	1
2364609	99	58	34,21	cyclictest	2387830	-21	sendmail	20:40:00	1
2364609	99	58	29,25	cyclictest	0	-21	swapper/1	23:35:41	1
2364609	99	58	21,34	cyclictest	2365579	-21	switchtime	19:10:42	1
2364609	99	57	52,3	cyclictest	2380043	-21	kworker/u4:4+events_unbound	20:07:19	1
2364609	99	57	4,11	cyclictest	2397860	-21	kworker/u4:7+xprtiod	21:15:10	1
2364609	99	57	30,24	cyclictest	2507188	-21	kworker/u4:2-rpciod	23:30:02	1
2364609	99	57	26,29	cyclictest	2390884	-21	fschecks_time	20:50:20	1
2364609	99	56	4,17	cyclictest	2376193	-21	modprobe	19:55:00	1
2364609	99	56	22,32	cyclictest	0	-21	swapper/1	20:25:41	1
2364609	99	56	21,31	cyclictest	0	-21	swapper/1	19:55:37	1
2364609	99	56	19,33	cyclictest	0	-21	swapper/1	19:25:01	1
2364608	99	56	49,5	cyclictest	2380041	-21	kworker/u4:0+events_unbound	20:12:20	0
2364608	99	56	48,6	cyclictest	2376160	-21	kworker/u4:3+events_unbound	20:02:18	0
2364609	99	55	46,6	cyclictest	2383930	-21	kworker/u4:18+events_unbound	21:02:29	1
2364609	99	55	19,33	cyclictest	2378525	-21	threads	20:00:37	1
2364609	99	55	15,37	cyclictest	0	-21	swapper/1	21:00:02	1
2364608	99	55	4,47	cyclictest	2392977	-21	apt-get	21:00:09	0
2364609	99	54	21,30	cyclictest	0	-21	swapper/1	19:30:39	1
2364609	99	54	20,31	cyclictest	0	-21	swapper/1	19:45:01	1
2364609	99	54	1,14	cyclictest	2382164	-21	ntpq	20:15:35	1
2364608	99	54	45,7	cyclictest	2406112	-21	kworker/u4:1+events_unbound	21:22:31	0
2364609	99	53	45,6	cyclictest	2390369	-21	systemd	20:47:26	1
2364609	99	53	2,15	cyclictest	1060	-21	snmpd	20:10:28	1
2364609	99	53	20,30	cyclictest	0	-21	swapper/1	19:40:01	1
2364609	99	52	21,27	cyclictest	0	-21	swapper/1	19:45:36	1
2364609	99	52	1,16	cyclictest	2461172	-21	ntpq	22:30:27	1
2364608	99	52	29,17	cyclictest	2413221	-21	cut	21:30:40	0
2364608	99	51	44,4	cyclictest	2464710	-21	/usr/sbin/munin	22:35:17	0
2364608	99	50	42,6	cyclictest	2382621	-21	kworker/u4:14+events_unbound	21:07:28	0
2364608	99	49	39,7	cyclictest	2530196	-21	timerwakeupswit	23:55:40	0
2364608	99	48	40,6	cyclictest	2410220	-21	kworker/u4:5+events_unbound	21:27:31	0
2364608	99	47	40,5	cyclictest	2540635	-21	gltestperf	00:10:19	0
2364608	99	47	39,5	cyclictest	2456759	-21	fschecks_count	22:25:20	0
2364608	99	47	38,6	cyclictest	0	-21	swapper/0	21:47:35	0
2364608	99	47	33,11	cyclictest	2372404	-21	cat	19:40:01	0
2364608	99	47	30,4	cyclictest	0	-21	swapper/0	22:15:18	0
2364608	99	46	39,5	cyclictest	2527246	-21	kworker/u4:1+events_unbound	00:00:05	0
2364608	99	46	38,6	cyclictest	2369719	-21	kworker/u4:0+events_unbound	19:27:17	0
2364608	99	46	31,12	cyclictest	314	-21	systemd-journal	20:45:36	0
2364608	99	45	40,4	cyclictest	15	1	ktimers/0	20:07:17	0
2364608	99	45	39,4	cyclictest	2385766	-21	fschecks_time	20:30:19	0
2364608	99	45	39,4	cyclictest	2368137	-21	cat	19:20:41	0
2364608	99	45	32,9	cyclictest	2383957	-21	modprobe	20:25:00	0
2364608	99	44	38,5	cyclictest	2371005	-21	kworker/u4:11+events_unbound	20:50:03	0
2364608	99	44	35,7	cyclictest	2436107	-21	latency_hist	22:00:01	0
2364608	99	42	33,6	cyclictest	2366173	-21	aten_r7power_vo	19:15:18	0
2364608	99	39	32,5	cyclictest	2388762	-21	cat	20:40:42	0
2364608	99	37	29,6	cyclictest	2364668	-21	latency_hist	19:10:01	0
2364609	99	24	18,4	cyclictest	0	-21	swapper/1	19:10:01	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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