OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of system in rack #0, slot #8

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.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system

Characteristics of the 100 highest latencies:

System rack0slot8.osadl.org (updated Sat Jul 05, 2025 12:45:50)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
3409258	99	425	422,2	cyclictest	3437938	-21	kworker/u64:4+events_unbound	07:54:11	13
3409258	99	425	422,2	cyclictest	3437938	-21	kworker/u64:4+events_unbound	07:54:10	13
3409256	99	411	406,3	cyclictest	3500965	-21	kworker/u64:1+events_unbound	11:00:00	11
3409256	99	406	405,1	cyclictest	0	-21	swapper/5	07:40:50	11
3409256	99	400	0,392	cyclictest	3660567	-21	meminfo	11:40:23	11
3409254	99	392	387,3	cyclictest	3355573	-21	kworker/u64:2+events_unbound	07:33:11	9
3409251	99	392	388,3	cyclictest	3570779	-21	kworker/u64:4+events_unbound	11:15:37	1
3409251	99	389	385,3	cyclictest	3469858	-21	kworker/u64:0+events_unbound	08:22:02	1
3409254	99	388	383,3	cyclictest	3506366	-21	kworker/u64:2+events_unbound	08:56:09	9
3409267	99	374	372,1	cyclictest	0	-21	swapper/14	08:15:21	6
3409267	99	370	369,1	cyclictest	0	-21	swapper/14	11:00:00	6
3409267	99	370	369,0	cyclictest	0	-21	swapper/14	07:33:11	6
3409267	99	366	365,0	cyclictest	0	-21	swapper/14	08:45:59	6
3409267	99	366	364,1	cyclictest	0	-21	swapper/14	09:55:29	6
3409267	99	365	364,0	cyclictest	0	-21	swapper/14	10:05:24	6
3409267	99	365	364,0	cyclictest	0	-21	swapper/14	10:05:24	6
3409267	99	365	364,0	cyclictest	0	-21	swapper/14	08:56:08	6
3409267	99	365	363,1	cyclictest	0	-21	swapper/14	12:28:18	6
3409267	99	364	363,0	cyclictest	0	-21	swapper/14	11:06:16	6
3409267	99	361	360,0	cyclictest	0	-21	swapper/14	12:21:05	6
3409267	99	361	360,0	cyclictest	0	-21	swapper/14	10:39:55	6
3409267	99	361	359,1	cyclictest	0	-21	swapper/14	12:30:22	6
3409267	99	361	359,1	cyclictest	0	-21	swapper/14	12:30:22	6
3409267	99	358	357,0	cyclictest	0	-21	swapper/14	08:22:02	6
3409267	99	354	0,353	cyclictest	0	-21	swapper/14	09:48:59	6
3409260	99	343	342,1	cyclictest	0	-21	swapper/9	11:15:37	15
3409253	99	340	0,338	cyclictest	3665337	-21	meminfo	11:45:24	8
3409260	99	339	338,1	cyclictest	0	-21	swapper/9	08:22:02	15
3409262	99	330	329,1	cyclictest	0	-21	swapper/11	07:33:12	3
3409258	99	327	0,323	cyclictest	3660571	-21	meminfo	11:40:22	13
3409262	99	326	325,1	cyclictest	0	-21	swapper/11	08:56:09	3
3409268	99	302	0,301	cyclictest	0	-21	swapper/15	07:10:50	7
3409265	99	299	295,1	cyclictest	708	50	usb-storage	07:40:49	5
3409250	99	299	297,2	cyclictest	996451	-21	kworker/0:1+events	08:15:22	0
3409261	99	298	2,289	cyclictest	3665337	-21	meminfo	11:45:25	2
3409250	99	298	295,2	cyclictest	0	-21	swapper/0	11:00:01	0
3409250	99	298	294,3	cyclictest	0	-21	swapper/0	07:33:11	0
3409265	99	297	296,1	cyclictest	0	-21	swapper/13	11:00:00	5
3409250	99	296	0,2	cyclictest	18155	-21	seamonkey	08:49:57	0
3409250	99	294	288,5	cyclictest	3532869	-21	kworker/u64:5+events_unbound	11:06:16	0
3409250	99	293	290,2	cyclictest	0	-21	swapper/0	09:00:49	0
3409250	99	293	290,2	cyclictest	0	-21	swapper/0	08:56:08	0
3409250	99	292	290,2	cyclictest	0	-21	swapper/0	10:05:23	0
3409250	99	292	290,2	cyclictest	0	-21	swapper/0	10:05:23	0
3409250	99	292	289,2	cyclictest	0	-21	swapper/0	09:55:30	0
3409250	99	292	286,5	cyclictest	3677112	-21	kworker/u64:2+events_unbound	12:21:05	0
3409260	99	291	282,8	cyclictest	7347	-21	Xorg	10:08:44	15
3409260	99	291	282,8	cyclictest	7347	-21	Xorg	10:08:44	15
3409259	99	291	282,8	cyclictest	7347	-21	Xorg	09:39:50	14
3409250	99	291	283,7	cyclictest	7347	-21	Xorg	09:37:18	0
3409250	99	291	281,9	cyclictest	7347	-21	Xorg	09:20:22	0
3409265	99	290	281,8	cyclictest	18510	-21	Renderer	11:14:53	5
3409265	99	290	281,8	cyclictest	18510	-21	Renderer	11:07:50	5
3409261	99	290	282,7	cyclictest	18510	-21	Renderer	09:07:33	2
3409261	99	290	282,6	cyclictest	18510	-21	Renderer	10:27:52	2
3409261	99	290	280,9	cyclictest	18510	-21	Renderer	07:12:23	2
3409250	99	290	288,2	cyclictest	0	-21	swapper/0	12:28:19	0
3409250	99	290	284,5	cyclictest	3700484	-21	kworker/u64:4+events_unbound	12:30:23	0
3409250	99	290	284,5	cyclictest	3700484	-21	kworker/u64:4+events_unbound	12:30:23	0
3409250	99	290	282,7	cyclictest	18510	-21	Renderer	07:26:39	0
3409250	99	290	0,288	cyclictest	0	-21	swapper/0	09:27:46	0
3409250	99	290	0,1	cyclictest	0	-21	swapper/0	08:06:59	0
3409265	99	289	282,6	cyclictest	7347	-21	Xorg	09:26:59	5
3409262	99	289	282,6	cyclictest	7347	-21	Xorg	11:07:26	3
3409261	99	289	282,6	cyclictest	7347	-21	Xorg	11:06:59	2
3409260	99	289	280,7	cyclictest	7347	-21	Xorg	10:15:46	15
3409259	99	289	283,5	cyclictest	7347	-21	Xorg	07:36:18	14
3409259	99	289	281,6	cyclictest	7347	-21	Xorg	09:01:06	14
3409259	99	289	280,7	cyclictest	7347	-21	Xorg	08:44:56	14
3409258	99	289	282,6	cyclictest	7347	-21	Xorg	10:56:20	13
3409257	99	289	283,5	cyclictest	7619	-21	gnome-shell	10:23:58	12
3409257	99	289	281,7	cyclictest	7347	-21	Xorg	08:06:13	12
3409255	99	289	283,5	cyclictest	7347	-21	Xorg	09:00:10	10
3409254	99	289	282,6	cyclictest	7347	-21	Xorg	07:27:10	9
3409253	99	289	283,5	cyclictest	7619	-21	gnome-shell	07:52:00	8
3409253	99	289	283,5	cyclictest	7619	-21	gnome-shell	07:51:59	8
3409253	99	289	282,5	cyclictest	7619	-21	gnome-shell	09:41:58	8
3409253	99	289	281,7	cyclictest	7347	-21	Xorg	08:40:04	8
3409250	99	289	285,3	cyclictest	3528697	-21	kworker/u64:2+events_unbound	10:39:54	0
3409250	99	289	282,6	cyclictest	7347	-21	Xorg	07:55:46	0
3409250	99	289	280,8	cyclictest	7347	-21	Xorg	09:51:19	0
3409250	99	289	0,1	cyclictest	0	-21	swapper/0	09:05:45	0
3409265	99	288	281,6	cyclictest	7347	-21	Xorg	07:24:58	5
3409264	99	288	280,7	cyclictest	7347	-21	Xorg	10:05:34	4
3409264	99	288	280,7	cyclictest	7347	-21	Xorg	10:05:34	4
3409259	99	288	282,5	cyclictest	7619	-21	gnome-shell	10:46:58	14
3409259	99	288	280,7	cyclictest	7347	-21	Xorg	10:35:38	14
3409258	99	288	281,6	cyclictest	7347	-21	Xorg	09:01:10	13
3409257	99	288	282,5	cyclictest	7347	-21	Xorg	08:43:17	12
3409255	99	288	282,5	cyclictest	7619	-21	gnome-shell	08:16:59	10
3409254	99	288	282,5	cyclictest	8614	-21	WebExtensions	08:19:12	9
3409253	99	288	282,5	cyclictest	7347	-21	Xorg	09:06:20	8
3409253	99	288	282,5	cyclictest	7347	-21	Xorg	08:19:00	8
3409253	99	288	0,2	cyclictest	8508	-21	Socket	01:05:23	8
3409251	99	288	282,5	cyclictest	18510	-21	Renderer	09:40:44	1
3409265	99	287	282,4	cyclictest	7347	-21	Xorg	12:38:59	5
3409265	99	287	282,4	cyclictest	7347	-21	Xorg	09:12:53	5
3409265	99	287	281,5	cyclictest	7347	-21	Xorg	09:52:11	5
3409264	99	287	282,4	cyclictest	7347	-21	Xorg	10:48:42	4
3409262	99	287	281,5	cyclictest	7347	-21	Xorg	09:17:59	3
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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