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 Wed Dec 03, 2025 00:44:06)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
63752	99	128	120,6	cyclictest	224898	-21	kworker/u4:5+events_unbound	00:18:22	1
63752	99	122	113,6	cyclictest	113300	-21	kworker/u4:4+events_unbound	21:37:54	1
63752	99	119	111,5	cyclictest	157453	-21	kworker/u4:2+events_unbound	22:33:02	1
63752	99	117	110,5	cyclictest	247531	-21	kworker/u4:7+events_unbound	00:28:26	1
63752	99	109	99,7	cyclictest	93691	-21	kworker/u4:9+events_unbound	21:17:51	1
63752	99	109	102,5	cyclictest	240018	-21	kworker/u4:10+events_unbound	00:13:22	1
63752	99	108	89,5	cyclictest	173710	-21	kworker/u4:0+events_unbound	23:43:15	1
63752	99	107	95,7	cyclictest	258367	-21	kworker/u4:2+events_unbound	00:38:26	1
63752	99	104	96,5	cyclictest	129583	-21	kworker/u4:2+events_unbound	22:08:00	1
63750	99	103	95,6	cyclictest	165576	-21	kworker/u4:3+events_unbound	23:28:13	0
63752	99	101	91,7	cyclictest	97061	-21	kworker/u4:14+events_unbound	22:23:01	1
63752	99	101	91,7	cyclictest	160915	-21	kworker/u4:5+events_unbound	22:38:04	1
63752	99	99	91,6	cyclictest	224897	-21	kworker/u4:4+events_unbound	23:58:19	1
63752	99	96	87,6	cyclictest	75465	-21	kworker/u4:4+events_unbound	19:57:35	1
63752	99	96	86,7	cyclictest	161467	-21	kworker/u4:6+events_unbound	23:03:10	1
63752	99	95	86,6	cyclictest	75466	-21	kworker/u4:6+events_unbound	20:02:35	1
63752	99	95	86,6	cyclictest	75466	-21	kworker/u4:6+events_unbound	20:02:35	1
63752	99	94	85,6	cyclictest	60004	-21	kworker/u4:6+events_unbound	19:37:31	1
63752	99	93	84,7	cyclictest	129583	-21	kworker/u4:2+events_unbound	21:58:00	1
63750	99	93	84,6	cyclictest	181122	-21	kworker/u4:13+events_unbound	23:13:11	0
63752	99	92	83,7	cyclictest	247531	-21	kworker/u4:7+events_unbound	00:23:23	1
63752	99	88	79,7	cyclictest	213430	-21	kworker/u4:3+events_unbound	23:38:17	1
63750	99	88	70,9	cyclictest	53	-21	kswapd0	00:00:12	0
63752	99	86	76,7	cyclictest	133652	-21	kworker/u4:5+events_unbound	22:13:02	1
63750	99	84	76,6	cyclictest	117403	-21	kworker/u4:1+events_unbound	22:02:58	0
63752	99	82	75,5	cyclictest	137167	-21	kworker/u4:6+events_unbound	22:18:00	1
63752	99	82	73,6	cyclictest	60005	-21	kworker/u4:7+events_unbound	19:42:31	1
63752	99	82	55,6	cyclictest	101675	-21	kworker/u4:3+events_unbound	21:27:53	1
63750	99	81	43,34	cyclictest	226832	-21	/usr/sbin/munin	23:55:13	0
63752	99	78	69,6	cyclictest	97061	-21	kworker/u4:14+events_unbound	22:43:05	1
63750	99	77	5,21	cyclictest	215865	-21	ssh	23:40:36	0
63750	99	76	69,5	cyclictest	117403	-21	kworker/u4:1+events_unbound	21:37:57	0
63750	99	76	39,27	cyclictest	53	-21	kswapd0	23:30:08	0
63752	99	75	66,7	cyclictest	85864	-21	kworker/u4:0+events_unbound	20:47:46	1
63752	99	75	65,7	cyclictest	74183	-21	kworker/u4:2+events_unbound	19:52:33	1
63750	99	75	65,7	cyclictest	133650	-21	kworker/u4:3+events_unbound	21:57:57	0
63750	99	75	45,23	cyclictest	257	50	irq/23-42890000.ethernet	19:25:05	0
63750	99	74	40,4	cyclictest	107435	-21	aten_r7power_en	21:25:17	0
63752	99	72	62,7	cyclictest	72853	-21	apt-get	19:45:06	1
63752	99	71	64,5	cyclictest	101675	-21	kworker/u4:3+events_unbound	21:32:54	1
63752	99	70	52,5	cyclictest	197216	-21	kworker/u4:10+events_unbound	23:18:12	1
63752	99	69	62,5	cyclictest	76750	-21	kworker/u4:12+events_unbound	20:25:01	1
63752	99	69	61,6	cyclictest	68944	-21	kworker/u4:15+events_unbound	20:42:42	1
63750	99	69	62,5	cyclictest	101675	-21	kworker/u4:3+events_unbound	21:22:52	0
63750	99	69	60,6	cyclictest	81997	-21	kworker/u4:18+events_unbound	20:57:46	0
63750	99	68	58,6	cyclictest	81997	-21	kworker/u4:18+events_unbound	20:30:02	0
63752	99	67	57,6	cyclictest	197216	-21	kworker/u4:10+events_unbound	23:30:04	1
63750	99	67	60,5	cyclictest	124980	-21	kworker/u4:10+events_unbound	21:47:56	0
63750	99	66	47,7	cyclictest	236266	-21	kworker/u4:12+events_unbound	00:08:20	0
63750	99	65	56,6	cyclictest	129582	-21	kworker/u4:0+events_unbound	21:52:59	0
63752	99	64	56,5	cyclictest	76743	-21	kworker/u4:8+events_unbound	20:15:01	1
63750	99	64	49,4	cyclictest	165579	-21	kworker/u4:8+events_unbound	22:58:06	0
63752	99	63	55,5	cyclictest	125535	-21	kworker/u4:13+events_unbound	21:50:02	1
63752	99	63	53,7	cyclictest	165580	-21	kworker/u4:9+events_unbound	23:10:00	1
63752	99	62	52,6	cyclictest	93690	-21	kworker/u4:7+events_unbound	21:10:00	1
63752	99	60	51,6	cyclictest	64970	-21	kworker/u4:4+events_unbound	19:35:01	1
63750	99	60	52,6	cyclictest	117403	-21	kworker/u4:1+events_unbound	22:28:01	0
63750	99	60	52,6	cyclictest	117403	-21	kworker/u4:1+events_unbound	22:28:01	0
63750	99	59	43,12	cyclictest	184471	-21	unixbench_singl	23:00:42	0
63752	99	58	50,6	cyclictest	53722	-21	kworker/u4:9+events_unbound	19:12:24	1
63752	99	57	49,6	cyclictest	232751	-21	kworker/u4:10+events_unbound	00:03:22	1
63752	99	57	43,10	cyclictest	0	-21	swapper/1	22:25:14	1
63752	99	57	43,10	cyclictest	0	-21	swapper/1	22:25:13	1
63752	99	57	42,10	cyclictest	127458	-21	aten_r7power_en	21:50:18	1
63752	99	56	49,5	cyclictest	181121	-21	kworker/u4:12+events_unbound	22:58:08	1
63752	99	56	48,6	cyclictest	66269	-21	kworker/u4:11+events_unbound	19:17:27	1
63752	99	56	48,6	cyclictest	64976	-21	kworker/u4:10+events_unbound	19:22:28	1
63752	99	54	40,9	cyclictest	0	-21	swapper/1	23:25:27	1
63752	99	54	38,10	cyclictest	0	-21	swapper/1	21:40:29	1
63750	99	54	37,15	cyclictest	1056	-21	lldpd	23:22:18	0
63752	99	53	45,6	cyclictest	209389	-21	kworker/u4:6+events_unbound	23:50:01	1
63752	99	53	42,7	cyclictest	224899	-21	kworker/u4:7+events_unbound	23:53:18	1
63752	99	53	41,8	cyclictest	95804	-21	gltestperf	21:10:21	1
63750	99	52	41,7	cyclictest	195734	-21	sshd	23:15:24	0
63752	99	51	40,7	cyclictest	103667	-21	fschecks_count	21:20:21	1
63750	99	51	44,4	cyclictest	75466	-21	kworker/u4:6+events_unbound	20:02:37	0
63750	99	51	44,4	cyclictest	75466	-21	kworker/u4:6+events_unbound	20:02:37	0
63752	99	50	39,7	cyclictest	175166	-21	latency_hist	22:50:06	1
63750	99	50	31,17	cyclictest	75702	-21	aten2__	19:55:16	0
63750	99	50	29,18	cyclictest	0	-21	swapper/0	22:50:37	0
63750	99	50	25,14	cyclictest	68944	-21	kworker/u4:15+rpciod	20:45:10	0
63752	99	49	41,6	cyclictest	81997	-21	kworker/u4:18+events_unbound	20:52:44	1
63752	99	49	41,5	cyclictest	60005	-21	kworker/u4:7+events_unbound	20:37:42	1
63750	99	49	44,3	cyclictest	257	50	irq/23-42890000.ethernet	00:25:01	0
63750	99	49	42,4	cyclictest	159575	-21	aten_r7power_vo	22:30:22	0
63750	99	49	40,7	cyclictest	164179	-21	/usr/sbin/munin	22:35:34	0
63750	99	49	40,6	cyclictest	71459	-21	unixbench_singl	19:35:40	0
63750	99	48	42,4	cyclictest	211321	-21	grep	23:35:19	0
63750	99	48	40,5	cyclictest	147656	-21	fschecks_count	22:15:21	0
63752	99	47	35,7	cyclictest	0	-21	swapper/1	00:30:16	1
63750	99	47	40,5	cyclictest	93737	-21	munin-plugin-st	21:05:00	0
63750	99	47	40,5	cyclictest	83750	-21	fschecks_count	20:25:21	0
63750	99	47	40,5	cyclictest	219073	-21	aten_r7power_en	23:45:16	0
63750	99	47	39,6	cyclictest	60002	-21	kworker/u4:1+events_unbound	19:10:17	0
63750	99	47	39,5	cyclictest	152422	-21	run-parts	22:20:39	0
63750	99	47	39,5	cyclictest	119948	-21	uname	21:40:24	0
63750	99	47	38,6	cyclictest	88451	-21	kworker/u4:1+events_unbound	20:42:46	0
63750	99	47	38,5	cyclictest	0	-21	swapper/0	00:25:31	0
63750	99	47	37,7	cyclictest	112413	-21	timerandwakeup	21:30:40	0
63750	99	47	14,27	cyclictest	257	50	irq/23-42890000.ethernet	20:10:10	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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