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 Sun Nov 23, 2025 00:44:08)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
3845156	99	124	107,6	cyclictest	3948232	-21	kworker/u4:7+events_unbound	22:37:56	1
3845156	99	121	112,7	cyclictest	3911689	-21	kworker/u4:13+events_unbound	21:57:48	1
3845156	99	119	111,6	cyclictest	3963965	-21	kworker/u4:0+events_unbound	23:18:04	1
3845156	99	118	110,5	cyclictest	3992159	-21	kworker/u4:13+events_unbound	23:43:08	1
3845156	99	117	109,6	cyclictest	3915237	-21	kworker/u4:16+events_unbound	22:02:54	1
3845156	99	117	109,6	cyclictest	3864789	-21	kworker/u4:10+events_unbound	20:37:26	1
3845156	99	117	109,6	cyclictest	3859538	-21	kworker/u4:15+events_unbound	20:52:40	1
3845156	99	115	98,7	cyclictest	3873786	-21	kworker/u4:8+events_unbound	21:22:41	1
3845156	99	115	95,11	cyclictest	3936027	-21	kworker/u4:2+events_unbound	22:27:55	1
3845156	99	112	104,6	cyclictest	3841393	-21	kworker/u4:9+events_unbound	19:52:31	1
3845156	99	111	101,7	cyclictest	3936029	-21	kworker/u4:8+events_unbound	22:22:56	1
3845156	99	111	101,7	cyclictest	3936029	-21	kworker/u4:8+events_unbound	22:22:56	1
3845156	99	109	101,6	cyclictest	3907586	-21	kworker/u4:4+events_unbound	22:47:59	1
3845156	99	108	102,4	cyclictest	3862105	-21	kworker/u4:7+events_unbound	21:02:41	1
3845156	99	106	98,6	cyclictest	3931821	-21	kworker/u4:6+events_unbound	22:17:56	1
3845155	99	106	95,7	cyclictest	4016343	-21	kworker/u4:13+xprtiod	00:30:12	0
3845155	99	104	92,8	cyclictest	3923550	-21	kworker/u4:7+events_unbound	22:07:54	0
3845155	99	102	82,8	cyclictest	3846377	-21	kworker/u4:11+events_unbound	19:52:06	0
3845156	99	99	92,5	cyclictest	3959968	-21	kworker/u4:10+events_unbound	22:53:01	1
3845156	99	98	91,5	cyclictest	3976182	-21	kworker/u4:3+events_unbound	23:33:05	1
3845156	99	97	90,5	cyclictest	3903421	-21	kworker/u4:9+events_unbound	21:52:44	1
3845155	99	95	87,6	cyclictest	4012388	-21	kworker/u4:6+events_unbound	00:23:15	0
3845155	99	95	63,23	cyclictest	3833917	-21	kworker/u4:14+xprtiod	19:10:01	0
3845156	99	92	85,5	cyclictest	3855668	-21	kworker/u4:14+events_unbound	21:07:37	1
3845155	99	92	57,33	cyclictest	53	-21	kswapd0	22:20:10	0
3845155	99	92	57,33	cyclictest	53	-21	kswapd0	22:20:09	0
3845155	99	91	6,40	cyclictest	3914189	-21	sh	21:55:37	0
3845156	99	89	81,5	cyclictest	3841393	-21	kworker/u4:9+events_unbound	19:37:02	1
3845156	99	88	81,5	cyclictest	3860819	-21	kworker/u4:0+events_unbound	20:17:34	1
3845155	99	88	79,6	cyclictest	3968018	-21	kworker/u4:4+events_unbound	23:08:03	0
3845156	99	87	80,5	cyclictest	3846381	-21	kworker/u4:16+events_unbound	19:16:57	1
3845155	99	87	78,6	cyclictest	3907585	-21	kworker/u4:1+events_unbound	21:47:49	0
3845156	99	86	73,5	cyclictest	3846377	-21	kworker/u4:11+events_unbound	19:11:58	1
3845156	99	86	73,5	cyclictest	3846377	-21	kworker/u4:11+events_unbound	19:11:57	1
3845156	99	85	78,5	cyclictest	4012388	-21	kworker/u4:6+events_unbound	00:18:15	1
3845156	99	84	77,5	cyclictest	4012388	-21	kworker/u4:6+events_unbound	00:03:10	1
3845156	99	84	76,6	cyclictest	3855668	-21	kworker/u4:14+events_unbound	20:07:34	1
3845156	99	84	76,6	cyclictest	3855668	-21	kworker/u4:14+events_unbound	20:07:33	1
3845156	99	81	74,5	cyclictest	3860819	-21	kworker/u4:0+events_unbound	20:12:13	1
3845156	99	80	74,4	cyclictest	3846378	-21	kworker/u4:12+events_unbound	19:42:03	1
3845155	99	80	72,6	cyclictest	3859538	-21	kworker/u4:15+events_unbound	20:47:39	0
3845156	99	79	68,8	cyclictest	3860822	-21	kworker/u4:4+events_unbound	20:32:22	1
3845156	99	78	71,5	cyclictest	3851713	-21	kworker/u4:10+events_unbound	19:32:27	1
3845156	99	77	70,5	cyclictest	3869942	-21	kworker/u4:6+events_unbound	20:42:36	1
3845156	99	76	68,5	cyclictest	4042220	-21	kworker/u4:0+events_unbound	00:38:19	1
3845155	99	75	3,25	cyclictest	3846431	-21	apt-get	19:15:10	0
3845155	99	74	67,5	cyclictest	3911689	-21	kworker/u4:13+events_unbound	22:00:01	0
3845156	99	73	66,5	cyclictest	3944155	-21	kworker/u4:5+events_unbound	22:32:55	1
3845155	99	71	64,5	cyclictest	3886829	-21	kworker/u4:3+events_unbound	21:27:48	0
3845156	99	70	63,5	cyclictest	3846375	-21	kworker/u4:8+events_unbound	19:22:00	1
3845156	99	70	63,5	cyclictest	3846375	-21	kworker/u4:8+events_unbound	19:21:59	1
3845155	99	69	61,6	cyclictest	3866074	-21	kworker/u4:16+events_unbound	20:27:21	0
3845155	99	69	60,7	cyclictest	3841391	-21	kworker/u4:6+events_unbound	20:02:10	0
3845156	99	68	61,5	cyclictest	3842611	-21	kworker/u4:1+events_unbound	19:30:00	1
3845156	99	68	60,6	cyclictest	3948232	-21	kworker/u4:7+events_unbound	22:40:03	1
3845155	99	68	59,7	cyclictest	3841391	-21	kworker/u4:6+events_unbound	19:57:10	0
3845156	99	67	58,7	cyclictest	3860822	-21	kworker/u4:4+events_unbound	20:25:01	1
3845155	99	67	59,6	cyclictest	3860822	-21	kworker/u4:4+events_unbound	20:22:14	0
3845155	99	67	47,7	cyclictest	3963968	-21	kworker/u4:5+events_unbound	22:58:01	0
3845156	99	66	44,15	cyclictest	3905953	-21	sh	21:45:32	1
3845155	99	66	59,5	cyclictest	3931821	-21	kworker/u4:6+events_unbound	22:17:53	0
3845155	99	66	58,6	cyclictest	3868636	-21	kworker/u4:3+events_unbound	20:37:35	0
3845156	99	65	58,5	cyclictest	3860819	-21	kworker/u4:0+events_unbound	21:32:41	1
3845155	99	65	57,6	cyclictest	3841393	-21	kworker/u4:9+events_unbound	19:37:27	0
3845155	99	64	57,5	cyclictest	3846378	-21	kworker/u4:12+events_unbound	19:42:30	0
3845155	99	62	44,14	cyclictest	4041401	-21	unixbench_multi	00:35:41	0
3845156	99	61	54,5	cyclictest	3854387	-21	kworker/u4:8+events_unbound	19:45:04	1
3845156	99	61	50,9	cyclictest	4008371	-21	kworker/u4:9+events_unbound	23:53:10	1
3845155	99	61	54,5	cyclictest	4016340	-21	kworker/u4:1+events_unbound	00:13:14	0
3845156	99	60	52,6	cyclictest	3923551	-21	kworker/u4:9+events_unbound	22:11:37	1
3845155	99	60	43,7	cyclictest	3860822	-21	kworker/u4:4+events_unbound	20:32:35	0
3845156	99	59	44,9	cyclictest	0	-21	swapper/1	00:20:32	1
3845156	99	58	51,5	cyclictest	3972074	-21	kworker/u4:5+events_unbound	23:35:04	1
3845156	99	58	47,8	cyclictest	4012809	-21	systemd	23:58:09	1
3845156	99	58	44,9	cyclictest	4024975	-21	kworker/u4:1	00:15:00	1
3845155	99	58	2,16	cyclictest	4017565	-21	cron	00:05:00	0
3845155	99	57	38,17	cyclictest	4025339	-21	aten_r7power_cu	00:15:17	0
3845155	99	57	34,20	cyclictest	0	-21	swapper/0	20:15:12	0
3845156	99	56	49,5	cyclictest	3959968	-21	kworker/u4:10+events_unbound	23:00:02	1
3845155	99	56	48,6	cyclictest	3860819	-21	kworker/u4:0+events_unbound	21:42:49	0
3845155	99	55	47,6	cyclictest	3855668	-21	kworker/u4:14+events_unbound	20:07:13	0
3845155	99	55	47,6	cyclictest	3855668	-21	kworker/u4:14+events_unbound	20:07:12	0
3845155	99	55	47,5	cyclictest	3862105	-21	kworker/u4:7-rpciod	21:10:11	0
3845156	99	54	41,7	cyclictest	0	-21	swapper/1	22:55:32	1
3845155	99	54	35,15	cyclictest	3985853	-21	cron	23:25:00	0
3845155	99	54	34,14	cyclictest	3878622	-21	kworker/u4:2-rpciod	21:15:39	0
3845156	99	53	6,34	cyclictest	37	-21	kcompactd0	00:05:35	1
3845155	99	53	47,4	cyclictest	0	-21	swapper/0	22:30:16	0
3845156	99	52	43,6	cyclictest	3865743	-21	sendmail_mailqu	20:25:39	1
3845156	99	52	41,8	cyclictest	0	-21	swapper/1	21:40:34	1
3845156	99	52	41,7	cyclictest	3859581	-21	modprobe	20:05:00	1
3845155	99	52	31,18	cyclictest	3994846	-21	kernelversion	23:35:22	0
3845156	99	51	45,4	cyclictest	3984472	-21	kworker/u4:12+events_unbound	23:25:02	1
3845155	99	51	34,15	cyclictest	3929388	-21	idleruntime-cro	22:15:01	0
3845155	99	51	34,15	cyclictest	3884887	-21	aten2__	21:20:16	0
3845156	99	49	42,5	cyclictest	3864791	-21	kworker/u4:12+events_unbound	21:26:37	1
3845156	99	49	38,8	cyclictest	4034013	-21	diskmemload	00:25:41	1
3845155	99	49	39,7	cyclictest	3855709	-21	sh	19:50:00	0
3845155	99	49	30,17	cyclictest	0	-21	swapper/0	23:50:29	0
3845156	99	48	40,5	cyclictest	3873152	-21	gltestperf	20:55:21	1
3845155	99	48	41,5	cyclictest	3931819	-21	kworker/u4:0+events_unbound	22:45:01	0
3845155	99	48	41,5	cyclictest	3873833	-21	sh	21:00:00	0
3845155	99	48	39,7	cyclictest	3958761	-21	ldconfig	22:50:34	0
3845155	99	48	30,16	cyclictest	3848276	-21	df_abs	19:20:21	0
3845155	99	48	30,16	cyclictest	3848276	-21	df_abs	19:20:21	0
3845155	99	48	30,16	cyclictest	0	-21	swapper/0	22:35:41	0
3845155	99	48	29,16	cyclictest	0	-21	swapper/0	21:40:00	0
3845156	99	47	39,6	cyclictest	3972521	-21	sd-accept	23:08:02	1
3845156	99	47	36,8	cyclictest	37	-21	kcompactd0	23:11:39	1
3845155	99	47	37,7	cyclictest	3951037	-21	timerandwakeup	22:40:38	0
3845155	99	47	36,8	cyclictest	4033781	-21	switchtime	00:25:39	0
3845156	99	46	40,5	cyclictest	4004316	-21	kworker/u4:2+events_unbound	23:49:37	1
3845156	99	46	40,4	cyclictest	3897967	-21	sendmail_mailqu	21:35:41	1
3845155	99	46	39,5	cyclictest	3998421	-21	wget	23:40:16	0
3845155	99	46	34,8	cyclictest	0	-21	swapper/0	22:25:10	0
3845156	99	45	6,29	cyclictest	3881660	-21	ssh	21:15:40	1
3845156	99	45	38,5	cyclictest	3854386	-21	kworker/u4:5+events_unbound	19:55:02	1
3845156	99	45	36,7	cyclictest	3877123	-21	/usr/sbin/munin	21:10:20	1
3845155	99	45	38,5	cyclictest	3986960	-21	ntpq	23:25:33	0
3845155	99	45	37,6	cyclictest	4012388	-21	kworker/u4:6+events_unbound	00:09:37	0
3845155	99	45	34,8	cyclictest	3913195	-21	latency_hist	21:55:01	0
3845156	99	44	37,5	cyclictest	3921849	-21	fschecks_count	22:05:19	1
3845155	99	44	37,5	cyclictest	3981795	-21	munin-run	23:20:01	0
3845155	99	44	37,5	cyclictest	3966338	-21	grep	23:00:20	0
3845155	99	44	37,5	cyclictest	3893225	-21	fschecks_count	21:30:19	0
3845155	99	44	37,5	cyclictest	3845573	-21	fschecks_count	19:10:21	0
3845155	99	44	37,5	cyclictest	3845573	-21	fschecks_count	19:10:21	0
3845155	99	44	35,6	cyclictest	3984471	-21	kworker/u4:11-nfsiod	23:55:24	0
3845155	99	44	35,6	cyclictest	0	-21	swapper/0	23:45:37	0
3845156	99	43	34,6	cyclictest	4036977	-21	fschecks_time	00:30:24	1
3845156	99	42	33,7	cyclictest	3982601	-21	gltestperf	23:20:23	1
3845155	99	42	7,25	cyclictest	1060	-21	snmpd	21:00:26	0
3845155	99	42	36,4	cyclictest	3974265	-21	fschecks_count	23:10:20	0
3845156	99	41	34,5	cyclictest	3870959	-21	switchtime	20:45:37	1
3845156	99	41	33,5	cyclictest	3833917	-21	kworker/u4:14-rpciod	19:10:01	1
3845155	99	41	34,5	cyclictest	3994103	-21	latency_hist	23:35:02	0
3845155	99	41	34,5	cyclictest	3862028	-21	unixbench_multi	20:10:39	0
3845155	99	40	34,4	cyclictest	3850504	-21	latency_hist	19:30:01	0
3845155	99	39	31,6	cyclictest	3871789	-21	tr	20:50:20	0
3845155	99	39	31,6	cyclictest	0	-21	swapper/0	19:30:40	0
3845155	99	39	30,6	cyclictest	0	-21	swapper/0	20:40:20	0
3845155	99	39	25,12	cyclictest	3866075	-21	kworker/u4:17+events_unbound	21:10:00	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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