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 Tue May 05, 2026 12:44:13)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
518373	99	125	105,6	cyclictest	551380	-21	kworker/u4:7+events_unbound	09:20:01	0
518373	99	102	91,8	cyclictest	710409	-21	kworker/u4:0+events_unbound	12:35:39	0
518374	99	95	57,34	cyclictest	53	-21	kswapd0	10:10:10	1
518374	99	88	79,6	cyclictest	551382	-21	kworker/u4:12+events_unbound	09:25:02	1
518373	99	84	35,46	cyclictest	0	-21	swapper/0	11:40:25	0
518373	99	83	74,7	cyclictest	53	-21	kswapd0	11:00:19	0
518373	99	77	32,42	cyclictest	621435	-21	unixbench_multi	10:35:40	0
518374	99	75	64,8	cyclictest	551383	-21	kworker/u4:13+events_unbound	09:15:00	1
518373	99	74	66,6	cyclictest	710409	-21	kworker/u4:0+events_unbound	12:25:39	0
518374	99	73	64,6	cyclictest	524675	-21	kworker/u4:1+events_unbound	09:04:58	1
518373	99	73	32,38	cyclictest	549696	-21	fschecks_count	09:10:18	0
518373	99	72	64,5	cyclictest	705947	-21	kworker/u4:12+events_unbound	12:15:38	0
518373	99	72	22,12	cyclictest	641801	-21	modprobe	11:00:00	0
518374	99	71	36,32	cyclictest	0	-21	swapper/1	10:40:25	1
518374	99	71	36,32	cyclictest	0	-21	swapper/1	10:40:25	1
518373	99	71	33,35	cyclictest	0	-21	swapper/0	10:45:34	0
518373	99	71	32,35	cyclictest	546621	-21	sort	09:00:00	0
518374	99	70	12,10	cyclictest	549091	-21	diskmemload	11:00:01	1
518373	99	70	33,34	cyclictest	700282	-21	timerandwakeup	12:05:40	0
518374	99	69	51,6	cyclictest	701509	-21	kworker/u4:5+events_unbound	12:10:03	1
518374	99	69	51,6	cyclictest	701509	-21	kworker/u4:5+events_unbound	12:10:02	1
518374	99	69	38,28	cyclictest	529119	-21	gltestperf	07:50:20	1
518373	99	69	61,6	cyclictest	536163	-21	kworker/u4:8+events_unbound	08:50:00	0
518373	99	69	33,34	cyclictest	607978	-21	mailstats	10:20:36	0
518374	99	68	45,20	cyclictest	537492	-21	cron	08:25:01	1
518374	99	68	39,26	cyclictest	562850	-21	apt-get	09:25:18	1
518374	99	68	37,26	cyclictest	697048	-21	kworker/u4:4-rpciod	12:29:55	1
518373	99	68	60,6	cyclictest	635336	-21	kworker/u4:13+events_unbound	11:20:23	0
518373	99	68	34,32	cyclictest	566972	-21	latency_hist	09:30:00	0
518373	99	68	25,5	cyclictest	646807	-21	fschecks_count	11:05:22	0
518374	99	67	38,27	cyclictest	642395	-21	systemd	11:00:18	1
518374	99	67	38,27	cyclictest	554021	-21	aten_r7power_vo	09:15:17	1
518374	99	67	36,27	cyclictest	0	-21	swapper/1	10:45:15	1
518373	99	67	60,5	cyclictest	569435	-21	kworker/u4:4+events_unbound	10:00:06	0
518373	99	67	36,28	cyclictest	519988	-21	fschecks_time	07:15:20	0
518373	99	67	33,31	cyclictest	0	-21	swapper/0	10:05:21	0
518374	99	66	55,8	cyclictest	674771	-21	kworker/u4:9+events_unbound	11:45:27	1
518374	99	66	40,24	cyclictest	611756	-21	fschecks_time	10:25:20	1
518374	99	66	37,27	cyclictest	594603	-21	munin-run	10:05:00	1
518373	99	66	61,3	cyclictest	618164	-21	kworker/u4:9+events_unbound	10:50:17	0
518373	99	66	34,28	cyclictest	703943	-21	gltestperf	12:10:20	0
518373	99	66	34,28	cyclictest	703943	-21	gltestperf	12:10:19	0
518373	99	66	33,30	cyclictest	0	-21	swapper/0	11:10:34	0
518373	99	66	31,32	cyclictest	0	-21	swapper/0	07:25:37	0
518373	99	66	29,7	cyclictest	625229	-21	ntpq	10:40:26	0
518373	99	66	29,7	cyclictest	625229	-21	ntpq	10:40:25	0
518373	99	66	18,45	cyclictest	524675	-21	kworker/u4:1+rpciod	08:15:19	0
518374	99	65	36,27	cyclictest	695843	-21	switchtime	12:00:38	1
518374	99	65	31,31	cyclictest	0	-21	swapper/1	09:30:23	1
518373	99	65	36,27	cyclictest	672747	-21	sort	11:35:10	0
518373	99	65	25,6	cyclictest	524675	-21	kworker/u4:1+rpciod	07:55:29	0
518374	99	64	37,23	cyclictest	0	-21	swapper/1	11:30:41	1
518374	99	64	36,25	cyclictest	616220	-21	gltestperf	10:30:20	1
518374	99	64	34,28	cyclictest	674127	-21	who	11:35:40	1
518374	99	64	32,29	cyclictest	664553	-21	gltestperf	11:25:24	1
518374	99	64	32,29	cyclictest	0	-21	swapper/1	11:40:20	1
518374	99	64	25,36	cyclictest	0	-21	swapper/1	11:55:30	1
518373	99	64	32,30	cyclictest	540340	-21	aten_r7power_vo	08:35:15	0
518373	99	64	30,32	cyclictest	713260	-21	open_files	12:20:37	0
518373	99	64	29,31	cyclictest	0	-21	swapper/0	11:45:42	0
518373	99	64	28,34	cyclictest	564947	-21	kworker/u4:1-rpciod	09:35:30	0
518373	99	64	27,5	cyclictest	0	-21	swapper/0	11:30:41	0
518374	99	63	30,31	cyclictest	0	-21	swapper/1	11:50:29	1
518374	99	63	23,5	cyclictest	0	-21	swapper/1	11:05:43	1
518373	99	63	29,7	cyclictest	0	-21	swapper/0	09:45:36	0
518373	99	62	53,6	cyclictest	573911	-21	kworker/u4:10+events_unbound	09:40:02	0
518374	99	61	31,27	cyclictest	0	-21	swapper/1	12:15:26	1
518374	99	61	30,29	cyclictest	0	-21	swapper/1	12:30:32	1
518374	99	61	30,28	cyclictest	0	-21	swapper/1	08:35:26	1
518374	99	61	28,30	cyclictest	571852	-21	cpu	09:35:17	1
518374	99	61	28,30	cyclictest	0	-21	swapper/1	10:10:01	1
518374	99	61	26,32	cyclictest	0	-21	swapper/1	10:50:35	1
518374	99	61	25,4	cyclictest	0	-21	swapper/1	12:05:24	1
518374	99	61	23,4	cyclictest	0	-21	swapper/1	12:20:28	1
518373	99	61	33,26	cyclictest	686724	-21	sshd	11:50:30	0
518373	99	61	31,27	cyclictest	0	-21	swapper/0	10:25:41	0
518373	99	61	28,4	cyclictest	0	-21	swapper/0	11:25:20	0
518373	99	61	27,4	cyclictest	0	-21	swapper/0	12:30:28	0
518373	99	61	26,4	cyclictest	0	-21	swapper/0	09:50:04	0
518373	99	61	26,4	cyclictest	0	-21	swapper/0	08:10:36	0
518373	99	61	25,4	cyclictest	0	-21	swapper/0	08:30:15	0
518374	99	60	31,26	cyclictest	0	-21	swapper/1	10:20:19	1
518374	99	60	28,30	cyclictest	656369	-21	timerandwakeup	11:15:38	1
518374	99	60	28,29	cyclictest	0	-21	swapper/1	09:55:36	1
518373	99	60	3,21	cyclictest	616488	-21	ntpq	10:30:26	0
518373	99	60	29,28	cyclictest	0	-21	swapper/0	09:55:33	0
518373	99	60	28,4	cyclictest	0	-21	swapper/0	11:55:36	0
518373	99	60	27,4	cyclictest	0	-21	swapper/0	08:40:17	0
518374	99	59	4,13	cyclictest	659338	-21	apt-get	11:20:06	1
518374	99	59	27,28	cyclictest	0	-21	swapper/1	07:40:18	1
518374	99	59	27,28	cyclictest	0	-21	swapper/1	07:40:17	1
518374	99	59	25,4	cyclictest	0	-21	swapper/1	12:35:32	1
518374	99	59	25,4	cyclictest	0	-21	swapper/1	11:15:01	1
518374	99	59	23,7	cyclictest	0	-21	swapper/1	08:15:01	1
518374	99	59	23,4	cyclictest	0	-21	swapper/1	09:45:25	1
518373	99	59	27,3	cyclictest	0	-21	swapper/0	09:30:32	0
518373	99	59	21,7	cyclictest	0	-21	swapper/0	10:15:28	0
518374	99	58	48,7	cyclictest	53	-21	kswapd0	10:40:00	1
518374	99	58	29,26	cyclictest	0	-21	swapper/1	10:15:25	1
518374	99	58	28,27	cyclictest	0	-21	swapper/1	08:30:01	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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