OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of system in rack #f, slot #5

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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: reduced

Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system

Characteristics of the 100 highest latencies:

System rackfslot5.osadl.org (updated Mon May 11, 2026 00:46:21)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
16325	99	1013	972,36	cyclictest	2972	-21	kworker/0:5+events_freezable_power_	20:34:08	0
16327	99	849	838,5	cyclictest	0	-21	swapper/2	20:34:08	2
16326	99	840	825,8	cyclictest	0	-21	swapper/1	20:34:08	1
16328	99	838	831,3	cyclictest	0	-21	swapper/3	20:34:08	3
16325	99	787	741,40	cyclictest	24454	-21	kworker/0:0+events_freezable_power_	21:50:53	0
16325	99	780	737,38	cyclictest	16954	-21	kworker/0:2+events_freezable_power_	20:45:05	0
16325	99	780	737,38	cyclictest	16954	-21	kworker/0:2+events_freezable_power_	20:45:05	0
16327	99	773	761,7	cyclictest	0	-21	swapper/2	00:35:24	2
16325	99	772	730,37	cyclictest	4368	-21	kworker/0:4+events_freezable_power_	23:40:33	0
16325	99	772	730,37	cyclictest	4368	-21	kworker/0:4+events_freezable_power_	23:40:33	0
16327	99	769	757,7	cyclictest	0	-21	swapper/2	22:01:51	2
16325	99	767	725,36	cyclictest	1474	-21	kworker/0:3+events_freezable_power_	22:45:43	0
16327	99	765	753,7	cyclictest	0	-21	swapper/2	20:12:12	2
16328	99	764	754,5	cyclictest	0	-21	swapper/3	00:35:24	3
16327	99	764	752,7	cyclictest	0	-21	swapper/2	23:29:36	2
16327	99	764	751,7	cyclictest	0	-21	swapper/2	21:07:01	2
16327	99	763	751,7	cyclictest	0	-21	swapper/2	21:28:57	2
16327	99	763	751,7	cyclictest	0	-21	swapper/2	20:01:14	2
16327	99	763	751,7	cyclictest	0	-21	swapper/2	19:28:19	2
16328	99	760	750,5	cyclictest	0	-21	swapper/3	22:01:51	3
16327	99	758	746,7	cyclictest	0	-21	swapper/2	19:39:18	2
16327	99	757	745,7	cyclictest	0	-21	swapper/2	22:56:41	2
16327	99	757	744,7	cyclictest	0	-21	swapper/2	22:23:47	2
16326	99	757	748,4	cyclictest	0	-21	swapper/1	00:35:23	1
16328	99	756	746,5	cyclictest	0	-21	swapper/3	20:12:12	3
16327	99	756	744,7	cyclictest	0	-21	swapper/2	19:17:22	2
16328	99	755	744,5	cyclictest	0	-21	swapper/3	21:07:01	3
16327	99	755	743,7	cyclictest	0	-21	swapper/2	23:18:37	2
16328	99	754	744,5	cyclictest	0	-21	swapper/3	23:29:35	3
16328	99	754	744,5	cyclictest	0	-21	swapper/3	21:28:58	3
16328	99	754	744,5	cyclictest	0	-21	swapper/3	19:28:20	3
16328	99	753	743,5	cyclictest	0	-21	swapper/3	20:01:14	3
16326	99	753	744,4	cyclictest	0	-21	swapper/1	22:01:51	1
16327	99	752	740,7	cyclictest	0	-21	swapper/2	21:39:56	2
16327	99	752	740,7	cyclictest	0	-21	swapper/2	00:13:28	2
16327	99	752	740,7	cyclictest	0	-21	swapper/2	00:13:27	2
16327	99	752	740,7	cyclictest	0	-21	swapper/2	00:02:30	2
16327	99	752	740,7	cyclictest	0	-21	swapper/2	00:02:29	2
16327	99	752	739,7	cyclictest	0	-21	swapper/2	00:24:26	2
16327	99	751	739,7	cyclictest	0	-21	swapper/2	20:23:10	2
16327	99	751	738,7	cyclictest	0	-21	swapper/2	22:12:49	2
16328	99	749	739,5	cyclictest	0	-21	swapper/3	19:39:17	3
16327	99	749	737,7	cyclictest	0	-21	swapper/2	23:51:31	2
16327	99	748	736,7	cyclictest	0	-21	swapper/2	21:17:59	2
16327	99	748	736,7	cyclictest	0	-21	swapper/2	20:56:03	2
16326	99	748	740,3	cyclictest	0	-21	swapper/1	20:12:11	1
16328	99	747	737,5	cyclictest	0	-21	swapper/3	22:56:42	3
16328	99	747	737,5	cyclictest	0	-21	swapper/3	19:17:22	3
16328	99	747	736,5	cyclictest	0	-21	swapper/3	22:23:47	3
16326	99	747	738,4	cyclictest	0	-21	swapper/1	23:29:36	1
16326	99	747	738,4	cyclictest	0	-21	swapper/1	21:28:57	1
16326	99	747	738,4	cyclictest	0	-21	swapper/1	21:07:01	1
16326	99	747	738,4	cyclictest	0	-21	swapper/1	20:01:14	1
16326	99	747	738,4	cyclictest	0	-21	swapper/1	19:28:20	1
16327	99	746	734,7	cyclictest	0	-21	swapper/2	23:07:39	2
16328	99	745	735,5	cyclictest	0	-21	swapper/3	23:18:37	3
16328	99	743	733,5	cyclictest	0	-21	swapper/3	21:39:55	3
16328	99	743	733,5	cyclictest	0	-21	swapper/3	00:13:28	3
16328	99	743	733,5	cyclictest	0	-21	swapper/3	00:13:27	3
16328	99	742	733,5	cyclictest	0	-21	swapper/3	00:02:30	3
16328	99	742	733,5	cyclictest	0	-21	swapper/3	00:02:29	3
16328	99	742	732,5	cyclictest	0	-21	swapper/3	00:24:25	3
16326	99	742	733,4	cyclictest	0	-21	swapper/1	19:39:17	1
16328	99	741	731,5	cyclictest	0	-21	swapper/3	22:12:49	3
16328	99	741	731,5	cyclictest	0	-21	swapper/3	20:23:10	3
16327	99	741	729,7	cyclictest	0	-21	swapper/2	22:34:45	2
16327	99	741	729,7	cyclictest	0	-21	swapper/2	22:34:45	2
16328	99	740	730,5	cyclictest	0	-21	swapper/3	23:51:32	3
16326	99	740	731,4	cyclictest	0	-21	swapper/1	22:23:47	1
16326	99	740	731,4	cyclictest	0	-21	swapper/1	19:17:22	1
16328	99	739	729,5	cyclictest	0	-21	swapper/3	21:17:59	3
16328	99	739	729,5	cyclictest	0	-21	swapper/3	20:56:03	3
16326	99	739	731,3	cyclictest	0	-21	swapper/1	22:56:42	1
16326	99	739	730,4	cyclictest	0	-21	swapper/1	23:18:37	1
16328	99	737	727,5	cyclictest	0	-21	swapper/3	23:07:39	3
16326	99	736	727,4	cyclictest	0	-21	swapper/1	21:39:55	1
16326	99	736	727,4	cyclictest	0	-21	swapper/1	00:13:27	1
16326	99	736	727,4	cyclictest	0	-21	swapper/1	00:13:27	1
16326	99	736	727,4	cyclictest	0	-21	swapper/1	00:02:30	1
16326	99	736	727,4	cyclictest	0	-21	swapper/1	00:02:29	1
16326	99	735	726,4	cyclictest	0	-21	swapper/1	00:24:26	1
16326	99	734	725,4	cyclictest	0	-21	swapper/1	22:12:49	1
16326	99	734	725,4	cyclictest	0	-21	swapper/1	20:23:10	1
16326	99	733	724,4	cyclictest	0	-21	swapper/1	23:51:31	1
16326	99	732	723,4	cyclictest	0	-21	swapper/1	21:17:59	1
16326	99	732	723,4	cyclictest	0	-21	swapper/1	20:56:03	1
16328	99	731	721,5	cyclictest	0	-21	swapper/3	22:34:46	3
16328	99	731	721,5	cyclictest	0	-21	swapper/3	22:34:45	3
16326	99	730	721,4	cyclictest	0	-21	swapper/1	23:07:39	1
16326	99	723	715,3	cyclictest	0	-21	swapper/1	22:34:46	1
16326	99	723	715,3	cyclictest	0	-21	swapper/1	22:34:45	1
16325	99	713	695,13	cyclictest	31747	-21	kworker/0:6+events_freezable_power_	00:35:23	0
16325	99	708	685,18	cyclictest	4368	-21	kworker/0:4+events_freezable_power_	23:29:35	0
16325	99	707	691,11	cyclictest	15498	-21	kworker/0:4+events_freezable_power_	22:01:51	0
16325	99	705	685,15	cyclictest	1474	-21	kworker/0:3+events_freezable_power_	21:28:57	0
16325	99	702	687,10	cyclictest	13122	-21	kworker/0:0+events_freezable_power_	20:12:12	0
16325	99	700	685,10	cyclictest	17713	-21	kworker/0:4+events_freezable_power_	19:28:19	0
16325	99	700	685,10	cyclictest	13122	-21	kworker/0:0+events_freezable_power_	21:07:01	0
16325	99	700	684,11	cyclictest	13122	-21	kworker/0:0+events_freezable_power_	20:01:14	0
16327	99	699	689,5	cyclictest	0	-21	swapper/2	19:50:16	2
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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This page was last modified on 2025-04-16 - 17:23