OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of system in rack #3, slot #4

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, lowest P state: performance

Characteristics of the 100 highest latencies:

System rack3slot4.osadl.org (updated Thu Apr 30, 2026 00:46:44)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
2133834	2	2159	2129,15	sleep0	2133481	-21	kworker/0:1+events@ dbs_work_handler	19:05:11	0
2134309	2	1370	1348,13	sleep5	0	-21	swapper/5	19:05:22	5
2135715	99	131	112,5	cyclictest	2267506	-21	kworker/u12:0+events_unbound@ flush_memcg_stats_dwork	22:25:39	3
2135698	99	127	31,52	cyclictest	13	-21	ksoftirqd/0	23:10:35	0
2190624	2	125	0,3	sleep4	0	-21	swapper/4	21:15:43	4
2135715	99	121	106,8	cyclictest	2172008	-21	kworker/u12:2+events_unbound@ flush_memcg_stats_dwork	20:40:15	3
2135715	99	121	106,8	cyclictest	2172008	-21	kworker/u12:2+events_unbound@ flush_memcg_stats_dwork	20:40:14	3
2135702	99	117	104,7	cyclictest	2283914	-21	kworker/u12:1+events_unbound@ flush_memcg_stats_dwork	23:20:50	1
2135702	99	117	103,7	cyclictest	2155350	-21	kworker/u12:1+events_unbound@ flush_memcg_stats_dwork	20:05:05	1
2135715	99	114	99,8	cyclictest	2345676	-21	kworker/u12:2+events_unbound@ flush_memcg_stats_dwork	23:47:16	3
2135708	99	114	99,8	cyclictest	2217937	-21	kworker/u12:1+events_unbound@ flush_memcg_stats_dwork	22:20:37	2
2135702	99	114	102,5	cyclictest	2155350	-21	kworker/u12:1+events_unbound@ flush_memcg_stats_dwork	20:20:10	1
2135702	99	114	102,5	cyclictest	2155350	-21	kworker/u12:1+events_unbound@ flush_memcg_stats_dwork	20:20:09	1
2135708	99	111	97,7	cyclictest	2139412	-21	kworker/u12:2+events_unbound@ flush_memcg_stats_dwork	19:50:03	2
2135708	99	111	97,7	cyclictest	2139412	-21	kworker/u12:2+events_unbound@ flush_memcg_stats_dwork	19:50:03	2
2135698	99	111	43,49	cyclictest	2283914	-21	kworker/u12:1+events_unbound@ flush_memcg_stats_dwork	23:15:21	0
2135698	99	110	36,39	cyclictest	2267506	-21	kworker/u12:0+events_unbound@ flush_memcg_stats_dwork	22:27:14	0
2135698	99	109	82,20	cyclictest	2259147	-21	kworker/u12:2+events_unbound@ flush_memcg_stats_dwork	22:30:40	0
2135698	99	109	66,25	cyclictest	2283914	-21	kworker/u12:1+events_unbound@ flush_memcg_stats_dwork	22:58:54	0
2135708	99	108	94,7	cyclictest	2157572	-21	kworker/u12:0+events_unbound@ flush_memcg_stats_dwork	20:15:09	2
2135708	99	107	94,6	cyclictest	2302648	-21	kworker/u12:2+events_unbound@ flush_memcg_stats_dwork	23:15:49	2
2135708	99	105	77,7	cyclictest	2302648	-21	kworker/u12:2+events_unbound@ flush_memcg_stats_dwork	22:59:35	2
2135698	99	105	72,19	cyclictest	2224609	-21	kworker/u12:3+events_unbound@ flush_memcg_stats_dwork	21:44:46	0
2135698	99	105	72,19	cyclictest	2224609	-21	kworker/u12:3+events_unbound@ flush_memcg_stats_dwork	21:44:45	0
2135698	99	104	78,19	cyclictest	2361600	-21	kworker/u12:0+events_unbound@ flush_memcg_stats_dwork	00:18:42	0
2135698	99	104	78,19	cyclictest	2361600	-21	kworker/u12:0+events_unbound@ flush_memcg_stats_dwork	00:18:42	0
2135708	99	103	89,7	cyclictest	2174593	-21	kworker/u12:0+events_unbound@ flush_memcg_stats_dwork	21:42:14	2
2135708	99	103	89,7	cyclictest	2174593	-21	kworker/u12:0+events_unbound@ flush_memcg_stats_dwork	21:42:13	2
2135708	99	102	89,6	cyclictest	2283914	-21	kworker/u12:1+events_unbound@ flush_memcg_stats_dwork	22:45:44	2
2135708	99	102	89,6	cyclictest	2283914	-21	kworker/u12:1+events_unbound@ flush_memcg_stats_dwork	22:45:43	2
2135708	99	101	88,7	cyclictest	2296132	-21	kworker/u12:3+events_unbound@ flush_memcg_stats_dwork	22:50:43	2
2135708	99	101	88,7	cyclictest	2296132	-21	kworker/u12:3+events_unbound@ flush_memcg_stats_dwork	22:50:43	2
2135702	99	101	88,6	cyclictest	2361600	-21	kworker/u12:0+events_unbound@ flush_memcg_stats_dwork	00:02:34	1
2135698	99	99	71,20	cyclictest	2355897	-21	kworker/u12:3+events_unbound@ flush_memcg_stats_dwork	23:47:30	0
2135698	99	99	46,21	cyclictest	2178188	-21	kworker/u12:2+events_unbound@ flush_memcg_stats_dwork	22:05:54	0
2135715	99	98	83,7	cyclictest	2402344	-21	kworker/u12:3+events_unbound@ flush_memcg_stats_dwork	00:37:56	3
2135715	99	98	82,8	cyclictest	2267506	-21	kworker/u12:0+events_unbound@ flush_memcg_stats_dwork	22:35:41	3
2135715	99	98	82,8	cyclictest	2267506	-21	kworker/u12:0+events_unbound@ flush_memcg_stats_dwork	22:35:40	3
2135698	99	98	59,23	cyclictest	691	50	irq/529-eth0-Tx	20:15:00	0
2135725	99	97	91,3	cyclictest	0	-21	swapper/5	22:15:36	5
2135715	99	97	83,7	cyclictest	2322513	-21	kworker/u12:4+events_unbound@ flush_memcg_stats_dwork	23:31:01	3
2135708	99	97	85,6	cyclictest	2283914	-21	kworker/u12:1+events_unbound@ flush_memcg_stats_dwork	23:05:47	2
2135702	99	96	82,7	cyclictest	2361600	-21	kworker/u12:0+events_unbound@ flush_memcg_stats_dwork	23:53:34	1
2135715	99	95	65,7	cyclictest	2239606	-21	kworker/u12:0+events_unbound@ flush_memcg_stats_dwork	22:13:15	3
2135698	99	95	68,19	cyclictest	2217937	-21	kworker/u12:1+events_unbound@ flush_memcg_stats_dwork	21:50:43	0
2135715	99	94	80,6	cyclictest	2135223	-21	kworker/u12:0+events_unbound@ flush_memcg_stats_dwork	19:19:54	3
2135702	99	94	79,7	cyclictest	2139412	-21	kworker/u12:2+events_unbound@ flush_memcg_stats_dwork	19:55:02	1
2135702	99	94	64,7	cyclictest	2361600	-21	kworker/u12:0+events_unbound@ flush_memcg_stats_dwork	23:49:36	1
2135698	99	94	68,19	cyclictest	2196359	-21	kworker/u12:3+events_unbound@ flush_memcg_stats_dwork	21:30:36	0
2135698	99	94	67,20	cyclictest	2402344	-21	kworker/u12:3+events_unbound@ flush_memcg_stats_dwork	00:32:05	0
2135698	99	94	65,21	cyclictest	2267506	-21	kworker/u12:0+events_unbound@ flush_memcg_stats_dwork	22:50:12	0
2135698	99	94	65,21	cyclictest	2267506	-21	kworker/u12:0+events_unbound@ flush_memcg_stats_dwork	22:50:11	0
2135698	99	94	1,81	cyclictest	0	-21	swapper/0	19:35:30	0
2135715	99	93	63,7	cyclictest	2322513	-21	kworker/u12:4+events_unbound@ flush_memcg_stats_dwork	23:14:07	3
2135715	99	93	63,7	cyclictest	2267506	-21	kworker/u12:0+events_unbound@ flush_memcg_stats_dwork	22:51:17	3
2135715	99	93	63,7	cyclictest	2267506	-21	kworker/u12:0+events_unbound@ flush_memcg_stats_dwork	22:51:17	3
2135702	99	93	80,7	cyclictest	2267506	-21	kworker/u12:0+events_unbound@ flush_memcg_stats_dwork	22:24:50	1
2135698	99	93	33,13	cyclictest	691	50	irq/529-eth0-Tx	23:30:27	0
2135698	99	93	1,71	cyclictest	0	-21	swapper/0	21:05:36	0
2135715	99	92	50,8	cyclictest	2178188	-21	kworker/u12:2+events_unbound@ flush_memcg_stats_dwork	21:40:19	3
2135715	99	92	50,8	cyclictest	2178188	-21	kworker/u12:2+events_unbound@ flush_memcg_stats_dwork	21:40:18	3
2135708	99	92	78,7	cyclictest	2178188	-21	kworker/u12:2+events_unbound@ flush_memcg_stats_dwork	21:55:34	2
2135698	99	92	2,45	cyclictest	2366717	-21	/usr/sbin/munin	23:50:43	0
2135698	99	92	1,79	cyclictest	0	-21	swapper/0	21:20:33	0
2135708	99	91	78,6	cyclictest	2361600	-21	kworker/u12:0+events_unbound@ flush_memcg_stats_dwork	23:53:14	2
2135702	99	91	76,7	cyclictest	2259147	-21	kworker/u12:2+events_unbound@ flush_memcg_stats_dwork	22:15:05	1
2135698	99	91	66,18	cyclictest	2267506	-21	kworker/u12:0+events_unbound@ flush_memcg_stats_dwork	22:40:04	0
2135698	99	91	66,18	cyclictest	2267506	-21	kworker/u12:0+events_unbound@ flush_memcg_stats_dwork	22:40:03	0
2135715	99	90	77,7	cyclictest	2394335	-21	kworker/u12:2+events_unbound@ flush_memcg_stats_dwork	00:31:34	3
2135715	99	90	76,7	cyclictest	2355897	-21	kworker/u12:3+events_unbound@ flush_memcg_stats_dwork	23:43:33	3
2135715	99	90	76,7	cyclictest	2267506	-21	kworker/u12:0+events_unbound@ flush_memcg_stats_dwork	23:05:39	3
2135715	99	89	76,6	cyclictest	2322513	-21	kworker/u12:4+events_unbound@ flush_memcg_stats_dwork	23:29:34	3
2135715	99	89	76,6	cyclictest	2322513	-21	kworker/u12:4+events_unbound@ flush_memcg_stats_dwork	23:29:34	3
2135715	99	89	75,7	cyclictest	2283914	-21	kworker/u12:1+events_unbound@ flush_memcg_stats_dwork	23:24:35	3
2135708	99	89	77,6	cyclictest	2239606	-21	kworker/u12:0+events_unbound@ flush_memcg_stats_dwork	22:05:34	2
2135708	99	89	76,6	cyclictest	2252442	-21	kworker/u12:3+events_unbound@ flush_memcg_stats_dwork	22:11:34	2
2135702	99	89	75,7	cyclictest	2196359	-21	kworker/u12:3+events_unbound@ flush_memcg_stats_dwork	21:22:15	1
2135702	99	89	75,7	cyclictest	2174593	-21	kworker/u12:0+events_unbound@ flush_memcg_stats_dwork	21:08:36	1
2135702	99	89	57,9	cyclictest	2178188	-21	kworker/u12:2+events_unbound@ flush_memcg_stats_dwork	21:16:41	1
2135698	99	89	63,19	cyclictest	2239606	-21	kworker/u12:0+events_unbound@ flush_memcg_stats_dwork	21:57:51	0
2135698	99	89	30,36	cyclictest	2402344	-21	kworker/u12:3+events_unbound@ flush_memcg_stats_dwork	00:38:41	0
2135698	99	89	16,22	cyclictest	0	-21	swapper/0	00:23:14	0
2135698	99	89	16,22	cyclictest	0	-21	swapper/0	00:23:14	0
2135725	99	88	82,3	cyclictest	0	-21	swapper/5	19:23:34	5
2135725	99	88	82,3	cyclictest	0	-21	swapper/5	19:23:33	5
2135715	99	88	74,7	cyclictest	2217937	-21	kworker/u12:1+events_unbound@ flush_memcg_stats_dwork	21:50:28	3
2135702	99	88	75,6	cyclictest	2283914	-21	kworker/u12:1+events_unbound@ flush_memcg_stats_dwork	00:23:47	1
2135702	99	88	75,6	cyclictest	2283914	-21	kworker/u12:1+events_unbound@ flush_memcg_stats_dwork	00:23:47	1
2135702	99	88	67,7	cyclictest	2283914	-21	kworker/u12:1+events_unbound@ flush_memcg_stats_dwork	00:10:59	1
2135702	99	88	67,7	cyclictest	2283914	-21	kworker/u12:1+events_unbound@ flush_memcg_stats_dwork	00:10:59	1
2135698	99	88	61,19	cyclictest	2174593	-21	kworker/u12:0+events_unbound@ flush_memcg_stats_dwork	20:50:24	0
2135698	99	88	60,20	cyclictest	2224609	-21	kworker/u12:3+events_unbound@ flush_memcg_stats_dwork	21:45:49	0
2135698	99	88	60,20	cyclictest	2224609	-21	kworker/u12:3+events_unbound@ flush_memcg_stats_dwork	21:45:48	0
2135698	99	88	52,24	cyclictest	2163153	-21	ntpq	20:15:32	0
2135698	99	88	39,33	cyclictest	2217937	-21	kworker/u12:1+events_unbound@ flush_memcg_stats_dwork	22:12:17	0
2135715	99	87	75,6	cyclictest	2283914	-21	kworker/u12:1+events_unbound@ flush_memcg_stats_dwork	22:58:15	3
2135715	99	87	73,7	cyclictest	2166571	-21	kworker/u12:0+events_unbound@ flush_memcg_stats_dwork	20:30:13	3
2135708	99	87	74,6	cyclictest	2361600	-21	kworker/u12:0+events_unbound@ flush_memcg_stats_dwork	00:13:39	2
2135708	99	87	74,6	cyclictest	2361600	-21	kworker/u12:0+events_unbound@ flush_memcg_stats_dwork	00:13:39	2
2135708	99	87	73,7	cyclictest	2174593	-21	kworker/u12:0+events_unbound@ flush_memcg_stats_dwork	21:05:23	2
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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