OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of system in rack #7, slot #2

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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 792 highest latencies:

System rack7slot2.osadl.org (updated Fri Sep 19, 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
276722	99	123	114,6	cyclictest	342829	-21	kworker/u4:13+events_unbound	22:08:18	1
276722	99	113	105,5	cyclictest	324351	-21	kworker/u4:3+events_unbound	21:33:09	1
276722	99	113	104,7	cyclictest	442514	-21	kworker/u4:3+events_unbound	00:33:37	1
276720	99	113	105,6	cyclictest	335505	-21	kworker/u4:12+events_unbound	21:53:11	0
276720	99	110	102,6	cyclictest	328032	-21	kworker/u4:8+events_unbound	21:38:08	0
276720	99	107	99,6	cyclictest	357057	-21	kworker/u4:5+events_unbound	22:18:20	0
276720	99	104	96,6	cyclictest	346560	-21	kworker/u4:1+events_unbound	22:03:17	0
276720	99	103	95,6	cyclictest	276646	-21	kworker/u4:6+events_unbound	19:17:42	0
276720	99	100	92,6	cyclictest	431645	-21	kworker/u4:11+events_unbound	23:58:36	0
276720	99	100	74,19	cyclictest	53	-21	kswapd0	22:05:12	0
276720	99	99	91,6	cyclictest	262988	-21	kworker/u4:8+events_unbound	19:42:50	0
276720	99	98	90,6	cyclictest	303968	-21	kworker/u4:2+events_unbound	21:03:06	0
276720	99	97	90,5	cyclictest	431642	-21	kworker/u4:4+events_unbound	00:03:25	0
276720	99	97	90,5	cyclictest	387648	-21	kworker/u4:9+events_unbound	23:28:33	0
276720	99	97	88,6	cyclictest	387648	-21	kworker/u4:9+events_unbound	23:13:21	0
276720	99	96	88,6	cyclictest	360662	-21	kworker/u4:3+events_unbound	22:23:21	0
276720	99	96	88,6	cyclictest	299940	-21	kworker/u4:9+events_unbound	20:37:58	0
276720	99	95	87,6	cyclictest	442514	-21	kworker/u4:3+events_unbound	00:23:39	0
276720	99	94	86,6	cyclictest	387648	-21	kworker/u4:9+events_unbound	23:08:22	0
276720	99	92	85,5	cyclictest	442514	-21	kworker/u4:3+events_unbound	00:28:38	0
276720	99	88	80,6	cyclictest	275432	-21	kworker/u4:0+events_unbound	19:57:48	0
276720	99	87	79,6	cyclictest	420707	-21	kworker/u4:5+events_unbound	23:43:23	0
276720	99	86	78,6	cyclictest	391397	-21	kworker/u4:2+events_unbound	23:03:28	0
276720	99	86	78,6	cyclictest	328032	-21	kworker/u4:8+events_unbound	22:13:19	0
276720	99	86	78,6	cyclictest	280531	-21	kworker/u4:14+events_unbound	19:27:44	0
276720	99	82	74,6	cyclictest	276645	-21	kworker/u4:5+events_unbound	19:12:38	0
276720	99	82	72,7	cyclictest	293432	-21	kworker/u4:9+events_unbound	20:12:51	0
276720	99	81	74,5	cyclictest	290879	-21	kworker/u4:5+events_unbound	20:17:55	0
276720	99	81	73,6	cyclictest	309328	-21	kworker/u4:10+events_unbound	21:13:08	0
276720	99	80	72,6	cyclictest	275432	-21	kworker/u4:0+events_unbound	20:27:55	0
276722	99	79	23,32	cyclictest	0	-21	swapper/1	23:35:39	1
276722	99	78	24,29	cyclictest	0	-21	swapper/1	22:00:37	1
276720	99	78	70,6	cyclictest	316824	-21	kworker/u4:14+events_unbound	21:23:05	0
276722	99	77	20,36	cyclictest	331785	-21	ssh	21:42:12	1
276722	99	76	71,3	cyclictest	387646	-21	kworker/u4:6+events_unbound	23:18:31	1
276720	99	76	68,6	cyclictest	276645	-21	kworker/u4:5+events_unbound	19:47:52	0
276722	99	75	4,44	cyclictest	433107	-21	ssh	23:59:26	1
276720	99	75	67,6	cyclictest	284447	-21	kworker/u4:3+events_unbound	20:02:55	0
276720	99	73	65,6	cyclictest	387646	-21	kworker/u4:6+events_unbound	22:58:27	0
276722	99	72	67,3	cyclictest	387648	-21	kworker/u4:9+events_unbound	23:13:31	1
276722	99	72	28,39	cyclictest	0	-21	swapper/1	23:00:32	1
276720	99	72	65,5	cyclictest	275432	-21	kworker/u4:0+events_unbound	19:32:44	0
276722	99	70	27,27	cyclictest	338042	-21	mailstats	21:50:41	1
276720	99	70	64,4	cyclictest	274194	-21	kworker/u4:4+events_unbound	19:22:44	0
276720	99	70	63,5	cyclictest	277945	-21	kworker/u4:10+events_unbound	19:37:50	0
276722	99	69	59,7	cyclictest	416973	-21	kworker/u4:0+events_unbound	23:48:34	1
276722	99	69	32,31	cyclictest	296187	-21	latency_hist	20:25:02	1
276722	99	68	2,15	cyclictest	380226	-21	ssh	22:48:30	1
276722	99	68	1,14	cyclictest	357378	-21	ssh	22:17:30	1
276720	99	68	55,10	cyclictest	420707	-21	kworker/u4:5+events_unbound	00:05:03	0
276722	99	67	2,14	cyclictest	336529	-21	ssh	21:49:28	1
276722	99	66	47,12	cyclictest	37	-21	kcompactd0	21:35:02	1
276722	99	66	31,28	cyclictest	0	-21	swapper/1	22:10:37	1
276720	99	66	58,6	cyclictest	297380	-21	kworker/u4:15+events_unbound	21:08:06	0
276722	99	65	60,3	cyclictest	439046	-21	kworker/u4:13+events_unbound	00:08:24	1
276722	99	64	50,10	cyclictest	407668	-21	sh	23:25:18	1
276722	99	64	41,19	cyclictest	53	-21	kswapd0	21:20:10	1
276722	99	64	33,28	cyclictest	373621	-21	aten_r7power_cu	22:40:17	1
276722	99	64	21,26	cyclictest	0	-21	swapper/1	22:25:01	1
276722	99	64	19,39	cyclictest	305704	-21	basename	21:05:17	1
276722	99	63	30,30	cyclictest	419068	-21	tail	23:40:23	1
276722	99	63	1,18	cyclictest	444771	-21	ssh	00:15:35	1
276722	99	62	6,51	cyclictest	440716	-21	ssh	00:10:14	1
276722	99	62	4,54	cyclictest	433747	-21	ssh	00:00:15	1
276722	99	62	36,14	cyclictest	398365	-21	kworker/u4:12+events_unbound	23:23:22	1
276722	99	62	3,52	cyclictest	363404	-21	ssh	22:25:32	1
276722	99	62	30,29	cyclictest	277253	-21	gltestperf	19:10:20	1
276722	99	62	2,56	cyclictest	314933	-21	ssh	21:20:16	1
276720	99	62	29,23	cyclictest	257	50	irq/23-42890000.ethernet	20:20:07	0
276722	99	61	49,9	cyclictest	309573	-21	sshd	21:13:03	1
276720	99	61	55,4	cyclictest	297380	-21	kworker/u4:15+events_unbound	21:30:04	0
276722	99	60	6,50	cyclictest	370251	-21	ssh	22:35:22	1
276722	99	60	30,26	cyclictest	0	-21	swapper/1	21:25:37	1
276722	99	60	25,31	cyclictest	0	-21	swapper/1	00:35:30	1
276722	99	60	1,16	cyclictest	291674	-21	ntpq	20:05:30	1
276720	99	60	49,8	cyclictest	37	-21	kcompactd0	22:45:53	0
276722	99	59	51,6	cyclictest	275432	-21	kworker/u4:0+events_unbound	20:12:53	1
276722	99	59	4,51	cyclictest	393120	-21	diskstats	23:05:20	1
276722	99	59	3,52	cyclictest	294224	-21	sed	20:15:27	1
276722	99	59	3,50	cyclictest	450569	-21	ssh	00:25:00	1
276722	99	59	30,26	cyclictest	0	-21	swapper/1	21:56:52	1
276722	99	59	1,15	cyclictest	450848	-21	sh	00:25:15	1
276722	99	59	1,15	cyclictest	426633	-21	ssh	23:50:24	1
276720	99	59	44,10	cyclictest	426089	-21	sh	23:50:16	0
276722	99	58	28,26	cyclictest	0	-21	swapper/1	19:30:02	1
276722	99	58	26,29	cyclictest	0	-21	swapper/1	22:55:19	1
276722	99	58	2,13	cyclictest	300810	-21	ntpq	20:40:30	1
276722	99	58	21,34	cyclictest	0	-21	swapper/1	20:45:42	1
276722	99	57	23,31	cyclictest	0	-21	swapper/1	22:30:43	1
276722	99	57	22,32	cyclictest	379	-21	dbus-daemon	19:57:48	1
276722	99	57	1,14	cyclictest	280119	-21	ntpq	19:20:36	1
276722	99	56	5,49	cyclictest	1060	-21	snmpd	19:50:14	1
276722	99	56	3,49	cyclictest	278695	-21	ntpq	19:15:25	1
276722	99	56	28,25	cyclictest	276646	-21	kworker/u4:6+rpciod	19:30:17	1
276722	99	56	28,25	cyclictest	0	-21	swapper/1	23:30:32	1
276722	99	56	26,28	cyclictest	379584	-21	kworker/u4:1-rpciod	22:50:23	1
276722	99	56	22,31	cyclictest	296108	-21	kworker/u4:14+rpciod	20:25:21	1
276720	99	56	49,5	cyclictest	360661	-21	kworker/u4:1+events_unbound	22:25:02	0
276720	99	56	46,8	cyclictest	417591	-21	systemd	23:38:31	0
276722	99	55	2,16	cyclictest	284023	-21	ntpq	19:35:35	1
276722	99	55	2,13	cyclictest	299529	-21	ntpq	20:35:40	1
276722	99	55	18,32	cyclictest	305606	-21	latency_hist	21:05:01	1
276720	99	55	47,6	cyclictest	328030	-21	kworker/u4:6+events_unbound	21:43:10	0
276722	99	54	2,46	cyclictest	290351	-21	ntpq	20:00:26	1
276720	99	54	48,5	cyclictest	398364	-21	kworker/u4:11+events_unbound	23:17:02	0
276720	99	54	48,5	cyclictest	299942	-21	kworker/u4:14+events_unbound	20:50:02	0
276720	99	53	44,7	cyclictest	379	-21	dbus-daemon	21:48:08	0
276720	99	53	26,24	cyclictest	257	50	irq/23-42890000.ethernet	21:20:06	0
276722	99	52	2,6	cyclictest	0	-21	swapper/1	20:30:13	1
276722	99	52	20,29	cyclictest	0	-21	swapper/1	19:40:19	1
276722	99	52	1,10	cyclictest	286490	-21	ntpq	19:45:26	1
276722	99	51	1,12	cyclictest	303483	-21	ntpq	20:50:29	1
276720	99	51	44,5	cyclictest	439047	-21	kworker/u4:14+events_unbound	00:15:02	0
276720	99	51	44,5	cyclictest	339161	-21	kworker/u4:5+events_unbound	21:58:19	0
276720	99	51	43,6	cyclictest	368174	-21	kworker/u4:2+events_unbound	22:32:48	0
276720	99	51	33,16	cyclictest	364503	-21	kworker/u4:7+rpciod	22:40:21	0
276720	99	49	42,5	cyclictest	319520	-21	ntp_kernel_pll_	21:25:31	0
276720	99	49	41,5	cyclictest	454379	-21	df_abs	00:30:18	0
276722	99	47	14,25	cyclictest	4099079	-21	kworker/u4:3+rpciod	19:10:01	1
276722	99	47	1,38	cyclictest	304203	-21	modprobe	21:00:00	1
276720	99	47	26,19	cyclictest	411947	-21	netstat	23:30:26	0
276720	99	46	40,4	cyclictest	403907	-21	acpi	23:20:15	0
276720	99	46	39,5	cyclictest	456123	-21	kworker/u4:18+events_unbound	00:38:18	0
276720	99	46	39,5	cyclictest	423500	-21	sed	23:45:42	0
276720	99	46	39,5	cyclictest	302734	-21	idleruntime-cro	20:50:01	0
276720	99	44	37,6	cyclictest	439037	-21	kworker/u4:0+events_unbound	00:10:03	0
276720	99	44	37,5	cyclictest	381831	-21	gltestperf	22:50:21	0
276720	99	43	37,5	cyclictest	275432	-21	kworker/u4:0+events_unbound	20:32:58	0
276720	99	43	35,6	cyclictest	297380	-21	kworker/u4:15+events_unbound	21:00:00	0
276720	99	43	33,5	cyclictest	17	1	rcu_preempt	22:38:50	0
276720	99	42	33,6	cyclictest	291159	-21	aten_r7power_en	20:05:19	0
276720	99	41	21,5	cyclictest	17	1	rcu_preempt	19:50:30	0
276720	99	40	20,17	cyclictest	0	-21	swapper/0	20:45:00	0
276720	99	29	21,5	cyclictest	0	-21	swapper/0	19:10:01	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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