OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of system in rack #6, slot #0

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

Characteristics of the 100 highest latencies:

System rack6slot0.osadl.org (updated Sun Mar 01, 2026 01:02:44)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
17808	99	330	240,88	cyclictest	373	-21	kswapd1	00:07:18	26
17808	99	330	240,88	cyclictest	373	-21	kswapd1	00:07:17	26
17790	99	302	262,37	cyclictest	373	-21	kswapd1	00:06:44	8
17790	99	302	262,37	cyclictest	373	-21	kswapd1	00:06:44	8
17772	99	238	1,233	cyclictest	2454	-21	CPU		1
17772	99	238	1,233	cyclictest	2454	-21	CPU		1
17772	99	237	1,2	cyclictest	0	-21	swapper/1	21:41:49	1
17772	99	237	1,2	cyclictest	0	-21	swapper/1	21:41:48	1
17772	99	237	1,233	cyclictest	0	-21	swapper/1	23:40:20	1
17772	99	237	1,233	cyclictest	0	-21	swapper/1	23:40:20	1
17772	99	237	1,233	cyclictest	0	-21	swapper/1	23:40:20	1
17772	99	237	1,233	cyclictest	0	-21	swapper/1	23:11:10	1
17772	99	237	1,233	cyclictest	0	-21	swapper/1	23:11:09	1
17772	99	233	1,229	cyclictest	28507	-21	bash	21:30:24	1
17772	99	233	1,229	cyclictest	28507	-21	bash	21:30:24	1
17772	99	232	1,227	cyclictest	0	-21	swapper/1	19:55:01	1
17772	99	232	1,227	cyclictest	0	-21	swapper/1	19:55:01	1
17772	99	231	1,227	cyclictest	0	-21	swapper/1	22:49:57	1
17772	99	231	1,227	cyclictest	0	-21	swapper/1	22:49:57	1
17772	99	231	1,227	cyclictest	0	-21	swapper/1	22:49:57	1
17772	99	230	3,221	cyclictest	37269	-21	CPU		1
17772	99	230	3,221	cyclictest	37269	-21	CPU		1
17772	99	229	1,222	cyclictest	0	-21	swapper/1	20:50:02	1
17772	99	229	1,222	cyclictest	0	-21	swapper/1	20:50:01	1
17772	99	229	0,2	cyclictest	0	-21	swapper/1	22:02:25	1
17772	99	229	0,2	cyclictest	0	-21	swapper/1	22:02:25	1
17772	99	229	0,2	cyclictest	0	-21	swapper/1	22:02:25	1
17772	99	228	1,221	cyclictest	0	-21	swapper/1	00:05:12	1
17772	99	228	1,221	cyclictest	0	-21	swapper/1	00:05:12	1
17772	99	228	0,2	cyclictest	0	-21	swapper/1	21:25:21	1
17772	99	228	0,2	cyclictest	0	-21	swapper/1	21:25:20	1
17772	99	228	0,2	cyclictest	0	-21	swapper/1	21:25:20	1
17772	99	226	2,2	cyclictest	1	-21	systemd	00:28:55	1
17772	99	226	2,2	cyclictest	1	-21	systemd	00:28:55	1
17772	99	226	2,2	cyclictest	1	-21	systemd	00:28:55	1
17772	99	226	1,221	cyclictest	0	-21	swapper/1	23:28:11	1
17772	99	226	1,221	cyclictest	0	-21	swapper/1	23:28:11	1
17772	99	224	1,219	cyclictest	0	-21	swapper/1	22:55:17	1
17772	99	224	1,219	cyclictest	0	-21	swapper/1	22:55:16	1
17772	99	224	1,219	cyclictest	0	-21	swapper/1	22:55:16	1
17772	99	224	0,3	cyclictest	38672	-21	sshd	00:21:05	1
17772	99	224	0,3	cyclictest	38672	-21	sshd	00:21:04	1
17772	99	224	0,3	cyclictest	38672	-21	sshd	00:21:04	1
17772	99	224	0,2	cyclictest	0	-21	swapper/1	22:41:37	1
17772	99	224	0,2	cyclictest	0	-21	swapper/1	22:41:36	1
17772	99	223	1,219	cyclictest	0	-21	swapper/1	23:20:18	1
17772	99	223	1,219	cyclictest	0	-21	swapper/1	23:20:18	1
17772	99	223	1,218	cyclictest	0	-21	swapper/1	22:29:41	1
17772	99	223	1,218	cyclictest	0	-21	swapper/1	22:29:41	1
17772	99	223	1,217	cyclictest	0	-21	swapper/1	00:35:18	1
17772	99	223	1,217	cyclictest	0	-21	swapper/1	00:35:18	1
17772	99	222	1,2	cyclictest	0	-21	swapper/1	21:17:02	1
17772	99	222	1,2	cyclictest	0	-21	swapper/1	21:17:02	1
17772	99	221	1,2	cyclictest	0	-21	swapper/1	23:40:01	1
17772	99	221	1,2	cyclictest	0	-21	swapper/1	23:40:01	1
17772	99	221	1,2	cyclictest	0	-21	swapper/1	22:11:47	1
17772	99	221	1,2	cyclictest	0	-21	swapper/1	22:11:47	1
17772	99	221	1,2	cyclictest	0	-21	swapper/1	22:11:47	1
17772	99	221	1,217	cyclictest	0	-21	swapper/1	21:49:10	1
17772	99	221	1,217	cyclictest	0	-21	swapper/1	21:49:10	1
17772	99	221	1,217	cyclictest	0	-21	swapper/1	21:35:15	1
17772	99	221	1,217	cyclictest	0	-21	swapper/1	21:35:15	1
17772	99	221	1,215	cyclictest	0	-21	swapper/1	23:01:32	1
17772	99	221	1,215	cyclictest	0	-21	swapper/1	23:01:32	1
17772	99	221	1,215	cyclictest	0	-21	swapper/1	23:01:32	1
17772	99	221	1,214	cyclictest	2447	-21	CPU		1
17772	99	221	1,214	cyclictest	2447	-21	CPU		1
17772	99	221	1,214	cyclictest	0	-21	swapper/1	20:15:17	1
17772	99	221	1,214	cyclictest	0	-21	swapper/1	20:15:17	1
17772	99	221	0,2	cyclictest	0	-21	swapper/1	23:05:43	1
17772	99	221	0,2	cyclictest	0	-21	swapper/1	23:05:43	1
17772	99	221	0,2	cyclictest	0	-21	swapper/1	23:05:43	1
17772	99	221	0,2	cyclictest	0	-21	swapper/1	20:23:13	1
17772	99	221	0,2	cyclictest	0	-21	swapper/1	20:23:12	1
17772	99	220	1,2	cyclictest	0	-21	swapper/1	23:59:02	1
17772	99	220	1,2	cyclictest	0	-21	swapper/1	23:59:01	1
17772	99	220	1,2	cyclictest	0	-21	swapper/1	23:59:01	1
17772	99	220	1,2	cyclictest	0	-21	swapper/1	21:21:53	1
17772	99	220	1,2	cyclictest	0	-21	swapper/1	21:21:52	1
17772	99	220	1,2	cyclictest	0	-21	swapper/1	21:21:52	1
17772	99	220	1,216	cyclictest	0	-21	swapper/1	00:34:33	1
17772	99	220	1,216	cyclictest	0	-21	swapper/1	00:34:33	1
17772	99	220	1,215	cyclictest	0	-21	swapper/1	00:03:37	1
17772	99	220	1,215	cyclictest	0	-21	swapper/1	00:03:36	1
17772	99	220	1,215	cyclictest	0	-21	swapper/1	00:03:36	1
17772	99	219	1,215	cyclictest	0	-21	swapper/1	22:39:30	1
17772	99	219	1,215	cyclictest	0	-21	swapper/1	22:39:30	1
17772	99	218	0,2	cyclictest	0	-21	swapper/1	22:07:45	1
17772	99	218	0,2	cyclictest	0	-21	swapper/1	22:07:45	1
17772	99	218	0,2	cyclictest	0	-21	swapper/1	22:07:45	1
17772	99	217	1,2	cyclictest	0	-21	swapper/1	21:00:45	1
17772	99	217	1,2	cyclictest	0	-21	swapper/1	21:00:44	1
17772	99	217	1,2	cyclictest	0	-21	swapper/1	00:19:37	1
17772	99	217	1,2	cyclictest	0	-21	swapper/1	00:19:37	1
17772	99	217	1,213	cyclictest	0	-21	swapper/1	22:20:19	1
17772	99	217	1,213	cyclictest	0	-21	swapper/1	22:20:19	1
17772	99	217	1,208	cyclictest	1367	-21	dbus-daemon	22:50:14	1
17772	99	217	1,208	cyclictest	1367	-21	dbus-daemon	22:50:14	1
17772	99	217	1,208	cyclictest	1367	-21	dbus-daemon	22:50:14	1
17772	99	217	0,2	cyclictest	0	-21	swapper/1	19:17:25	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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