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 Sat Mar 28, 2026 00:44:08)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
2660721	99	95	88,5	cyclictest	2663242	-21	kworker/u4:6+events_unbound	19:36:34	0
2660722	99	89	80,7	cyclictest	2699239	-21	kworker/u4:3+events_unbound	21:31:53	1
2660721	99	89	29,54	cyclictest	2819442	-21	sh	23:35:08	0
2660722	99	86	79,5	cyclictest	2677486	-21	kworker/u4:8+events_unbound	20:30:01	1
2660722	99	81	70,8	cyclictest	2839391	-21	kworker/u4:4+events_unbound	00:08:06	1
2660722	99	81	60,6	cyclictest	2756138	-21	kworker/u4:0+events_unbound	22:32:04	1
2660722	99	80	72,5	cyclictest	2756143	-21	kworker/u4:11+events_unbound	22:42:06	1
2660722	99	78	70,5	cyclictest	2869992	-21	kworker/u4:10+events_unbound	00:33:50	1
2660721	99	74	54,16	cyclictest	53	-21	kswapd0	23:10:11	0
2660721	99	73	66,5	cyclictest	2672198	-21	kworker/u4:12+events_unbound	20:17:02	0
2660722	99	70	63,5	cyclictest	2661957	-21	kworker/u4:8+events_unbound	19:35:00	1
2660721	99	70	65,3	cyclictest	2742731	-21	kworker/u4:13+events_unbound	22:17:02	0
2660721	99	70	49,10	cyclictest	256	50	irq/23-42890000.ethernet	21:25:10	0
2660721	99	68	63,3	cyclictest	2738254	-21	kworker/u4:2+events_unbound	22:01:59	0
2660721	99	67	44,20	cyclictest	53	-21	kswapd0	23:05:07	0
2660721	99	67	3,36	cyclictest	2676398	-21	apt-get	20:10:15	0
2660722	99	66	60,4	cyclictest	2786607	-21	kworker/u4:2+events_unbound	23:17:14	1
2660722	99	66	58,6	cyclictest	2681422	-21	kworker/u4:14+events_unbound	20:36:44	1
2660722	99	66	50,5	cyclictest	2830479	-21	kworker/u4:3+events_unbound	23:52:32	1
2660722	99	63	53,7	cyclictest	2751660	-21	kworker/u4:2+events_unbound	22:27:03	1
2660721	99	63	53,8	cyclictest	2807303	-21	sh	23:20:37	0
2660722	99	62	55,5	cyclictest	2664536	-21	kworker/u4:7+events_unbound	19:26:31	1
2660721	99	61	54,5	cyclictest	2777712	-21	kworker/u4:3+events_unbound	22:55:00	0
2660721	99	61	54,5	cyclictest	2677478	-21	kworker/u4:1+events_unbound	20:40:02	0
2660722	99	60	53,5	cyclictest	2786606	-21	kworker/u4:1+events_unbound	22:57:10	1
2660722	99	60	52,6	cyclictest	2670926	-21	kworker/u4:6+events_unbound	19:51:36	1
2660722	99	59	51,6	cyclictest	2677488	-21	kworker/u4:11+events_unbound	20:21:42	1
2660721	99	57	47,8	cyclictest	2775716	-21	aten_r7power_cu	22:45:16	0
2660721	99	57	38,14	cyclictest	2771998	-21	ssh	22:40:26	0
2660722	99	56	49,5	cyclictest	2751660	-21	kworker/u4:2+events_unbound	22:22:02	1
2660721	99	56	49,5	cyclictest	2839391	-21	kworker/u4:4+events_unbound	00:05:22	0
2660721	99	56	45,7	cyclictest	0	-21	swapper/0	23:27:09	0
2660721	99	56	29,15	cyclictest	2762557	-21	ssh	22:30:11	0
2660721	99	55	51,3	cyclictest	15	1	ktimers/0	19:41:38	0
2660721	99	54	42,9	cyclictest	0	-21	swapper/0	23:19:30	0
2660721	99	54	35,17	cyclictest	2784763	-21	fschecks_count	22:55:21	0
2660722	99	53	46,5	cyclictest	2677480	-21	kworker/u4:4+events_unbound	20:31:43	1
2660722	99	53	46,5	cyclictest	2677480	-21	kworker/u4:4+events_unbound	20:31:43	1
2660722	99	53	46,5	cyclictest	2677479	-21	kworker/u4:2+events_unbound	20:15:01	1
2660722	99	53	46,5	cyclictest	2661960	-21	kworker/u4:11+events_unbound	19:20:00	1
2660721	99	53	46,5	cyclictest	2677485	-21	kworker/u4:6+events_unbound	20:23:02	0
2660721	99	52	45,5	cyclictest	2605483	-21	kworker/u4:4+events_unbound	19:10:07	0
2660721	99	52	44,6	cyclictest	2661960	-21	kworker/u4:11+events_unbound	19:20:02	0
2660721	99	52	43,6	cyclictest	2742725	-21	kworker/u4:7+events_unbound	22:07:00	0
2660721	99	52	33,5	cyclictest	2703149	-21	kworker/u4:9-xprtiod	21:25:01	0
2660722	99	51	7,33	cyclictest	2780690	-21	ssh	22:50:26	1
2660722	99	51	44,5	cyclictest	2842644	-21	timerwakeupswit	00:00:42	1
2660722	99	51	4,44	cyclictest	2824702	-21	ssh	23:40:31	1
2660721	99	51	45,5	cyclictest	2686516	-21	kworker/u4:1+events_unbound	20:50:03	0
2660721	99	51	44,5	cyclictest	2680151	-21	kworker/u4:5+events_unbound	20:30:03	0
2660721	99	51	44,5	cyclictest	2680151	-21	kworker/u4:5+events_unbound	20:30:03	0
2660721	99	51	44,5	cyclictest	2638016	-21	kworker/u4:0+events_unbound	19:31:02	0
2660721	99	51	43,6	cyclictest	2693075	-21	sendmail_mailqu	21:10:39	0
2660721	99	51	32,16	cyclictest	2873809	-21	kworker/u4:12-rpciod	00:40:00	0
2660722	99	50	5,30	cyclictest	2705506	-21	/usr/sbin/munin	21:25:13	1
2660722	99	50	44,5	cyclictest	2673557	-21	kworker/u4:0+events_unbound	20:05:00	1
2660722	99	50	43,5	cyclictest	2854757	-21	aten_r7power_po	00:15:15	1
2660722	99	50	43,5	cyclictest	2742727	-21	kworker/u4:9+events_unbound	22:11:59	1
2660722	99	50	41,7	cyclictest	2776936	-21	unixbench_singl	22:45:41	1
2660722	99	50	41,7	cyclictest	27	1	ktimers/1	22:05:14	1
2660721	99	50	44,4	cyclictest	15	1	ktimers/0	20:46:38	0
2660721	99	50	43,5	cyclictest	2838022	-21	mailstats	23:55:37	0
2660721	99	50	43,5	cyclictest	2724866	-21	kworker/u4:6+events_unbound	21:53:00	0
2660721	99	50	43,5	cyclictest	2686517	-21	kworker/u4:2+events_unbound	21:06:02	0
2660721	99	50	43,5	cyclictest	2668347	-21	kworker/u4:19+events_unbound	19:46:00	0
2660721	99	50	40,6	cyclictest	2850324	-21	aten_r7power_en	00:10:14	0
2660721	99	50	31,17	cyclictest	0	-21	swapper/0	22:10:18	0
2660722	99	49	42,5	cyclictest	2860340	-21	unixbench_singl	00:20:39	1
2660722	99	49	42,5	cyclictest	2673616	-21	sendmail	20:00:00	1
2660722	99	49	39,7	cyclictest	2728636	-21	unixbench-2d	21:50:40	1
2660722	99	49	38,8	cyclictest	0	-21	swapper/1	00:35:27	1
2660721	99	49	42,5	cyclictest	2677480	-21	kworker/u4:4+events_unbound	20:56:00	0
2660721	99	49	40,7	cyclictest	2792899	-21	apt-config	23:05:01	0
2660721	99	49	39,6	cyclictest	2696528	-21	dpkg	21:15:11	0
2660721	99	49	31,16	cyclictest	2691759	-21	diskmemload	21:30:16	0
2660721	99	49	1,15	cyclictest	2816084	-21	sendmail_mailtr	23:30:38	0
2660722	99	48	41,5	cyclictest	2715083	-21	ldconfig	21:35:31	1
2660722	99	48	39,6	cyclictest	0	-21	swapper/1	00:25:31	1
2660721	99	48	42,4	cyclictest	2718904	-21	df_abs	21:40:15	0
2660721	99	48	39,5	cyclictest	0	-21	swapper/0	21:55:09	0
2660721	99	48	31,15	cyclictest	2660717	-21	cyclictest	21:35:24	0
2660721	99	48	29,16	cyclictest	0	-21	swapper/0	22:25:20	0
2660721	99	48	27,18	cyclictest	0	-21	swapper/0	00:30:01	0
2660722	99	47	40,5	cyclictest	2829524	-21	unixbench_multi	23:45:40	1
2660722	99	47	40,5	cyclictest	2793525	-21	fschecks_count	23:05:24	1
2660722	99	47	40,5	cyclictest	2677480	-21	kworker/u4:4+events_unbound	20:41:44	1
2660722	99	47	38,6	cyclictest	0	-21	swapper/1	19:50:00	1
2660721	99	47	41,4	cyclictest	2723122	-21	aten_r7power_cu	21:45:15	0
2660721	99	47	40,4	cyclictest	2689108	-21	apt-get	21:00:10	0
2660721	99	47	39,6	cyclictest	2665044	-21	fschecks_time	19:25:19	0
2660721	99	47	38,7	cyclictest	2841444	-21	acpi	00:00:12	0
2660722	99	46	9,34	cyclictest	2732144	-21	diskstats	21:55:23	1
2660722	99	46	39,5	cyclictest	2737186	-21	awk	22:00:37	1
2660722	99	46	39,5	cyclictest	2697552	-21	ld	21:15:49	1
2660722	99	46	38,5	cyclictest	2819859	-21	cut	23:35:24	1
2660721	99	46	41,4	cyclictest	2670926	-21	kworker/u4:6+events_unbound	19:54:42	0
2660721	99	46	39,5	cyclictest	2863159	-21	ssh	00:25:02	0
2660721	99	46	39,5	cyclictest	2836744	-21	munin-run	23:55:00	0
2660721	99	46	39,5	cyclictest	2673557	-21	kworker/u4:0+events_unbound	20:03:42	0
2660721	99	46	33,6	cyclictest	0	-21	swapper/0	00:30:25	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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