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 Tue Jun 02, 2026 00:46:23)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
3392	99	924	912,7	cyclictest	0	-21	swapper/3	23:54:57	3
3390	99	920	910,5	cyclictest	0	-21	swapper/1	23:54:57	1
3389	99	879	857,17	cyclictest	32565	-21	kworker/0:2+events_freezable_power_	23:54:57	0
3392	99	753	742,7	cyclictest	0	-21	swapper/3	21:21:26	3
3390	99	751	740,5	cyclictest	0	-21	swapper/1	21:21:26	1
3392	99	744	733,7	cyclictest	0	-21	swapper/3	21:10:28	3
3390	99	741	731,5	cyclictest	0	-21	swapper/1	21:10:28	1
3392	99	735	722,8	cyclictest	0	-21	swapper/3	20:15:37	3
3390	99	730	719,5	cyclictest	0	-21	swapper/1	20:15:37	1
3392	99	725	714,7	cyclictest	0	-21	swapper/3	19:20:47	3
3392	99	722	711,7	cyclictest	0	-21	swapper/3	20:37:33	3
3390	99	722	712,5	cyclictest	0	-21	swapper/1	19:20:47	1
3392	99	721	710,7	cyclictest	0	-21	swapper/3	23:33:01	3
3392	99	721	710,7	cyclictest	0	-21	swapper/3	23:33:01	3
3392	99	721	709,7	cyclictest	0	-21	swapper/3	00:16:53	3
3392	99	720	708,7	cyclictest	0	-21	swapper/3	19:53:41	3
3392	99	719	708,7	cyclictest	0	-21	swapper/3	22:16:16	3
3392	99	719	708,7	cyclictest	0	-21	swapper/3	22:16:16	3
3392	99	719	707,7	cyclictest	0	-21	swapper/3	21:54:20	3
3392	99	719	707,7	cyclictest	0	-21	swapper/3	21:54:20	3
3392	99	719	707,7	cyclictest	0	-21	swapper/3	19:42:44	3
3390	99	719	709,5	cyclictest	0	-21	swapper/1	20:37:33	1
3392	99	718	706,7	cyclictest	0	-21	swapper/3	23:00:07	3
3390	99	718	708,5	cyclictest	0	-21	swapper/1	23:33:01	1
3390	99	718	708,5	cyclictest	0	-21	swapper/1	23:33:01	1
3392	99	717	706,7	cyclictest	0	-21	swapper/3	00:38:49	3
3390	99	717	707,5	cyclictest	0	-21	swapper/1	00:16:53	1
3390	99	716	706,5	cyclictest	0	-21	swapper/1	22:16:16	1
3390	99	716	706,5	cyclictest	0	-21	swapper/1	22:16:15	1
3390	99	716	706,5	cyclictest	0	-21	swapper/1	19:53:41	1
3390	99	715	705,5	cyclictest	0	-21	swapper/1	21:54:20	1
3390	99	715	705,5	cyclictest	0	-21	swapper/1	21:54:20	1
3390	99	715	705,5	cyclictest	0	-21	swapper/1	19:42:44	1
3390	99	714	704,5	cyclictest	0	-21	swapper/1	23:00:07	1
3390	99	714	704,5	cyclictest	0	-21	swapper/1	00:38:50	1
3392	99	713	701,7	cyclictest	0	-21	swapper/3	20:04:40	3
3391	99	713	705,3	cyclictest	0	-21	swapper/2	21:21:26	2
3392	99	711	701,5	cyclictest	0	-21	swapper/3	22:05:18	3
3389	99	710	679,24	cyclictest	27946	-21	kworker/0:1+events_freezable_power_	21:10:28	0
3390	99	709	699,5	cyclictest	0	-21	swapper/1	20:04:40	1
3392	99	708	696,7	cyclictest	0	-21	swapper/3	21:32:23	3
3390	99	708	699,4	cyclictest	0	-21	swapper/1	22:05:18	1
3392	99	707	696,7	cyclictest	0	-21	swapper/3	22:27:14	3
3392	99	705	693,7	cyclictest	0	-21	swapper/3	22:38:12	3
3392	99	705	693,7	cyclictest	0	-21	swapper/3	20:48:32	3
3390	99	705	694,6	cyclictest	0	-21	swapper/1	22:27:14	1
3390	99	704	694,5	cyclictest	0	-21	swapper/1	21:32:23	1
3392	99	703	692,7	cyclictest	0	-21	swapper/3	23:22:03	3
3389	99	703	688,10	cyclictest	5331	-21	kworker/0:0+events_freezable_power_	21:21:25	0
3392	99	702	690,7	cyclictest	0	-21	swapper/3	00:27:51	3
3392	99	702	690,7	cyclictest	0	-21	swapper/3	00:05:56	3
3392	99	701	689,7	cyclictest	0	-21	swapper/3	23:43:59	3
3392	99	701	689,7	cyclictest	0	-21	swapper/3	22:49:10	3
3390	99	701	691,5	cyclictest	0	-21	swapper/1	22:38:12	1
3390	99	701	691,5	cyclictest	0	-21	swapper/1	20:48:32	1
3392	99	700	690,5	cyclictest	0	-21	swapper/3	23:11:05	3
3392	99	700	688,7	cyclictest	0	-21	swapper/3	20:26:36	3
3390	99	700	690,5	cyclictest	0	-21	swapper/1	23:22:03	1
3389	99	699	667,27	cyclictest	5331	-21	kworker/0:0+events_freezable_power_	20:15:38	0
3392	99	698	686,7	cyclictest	0	-21	swapper/3	20:59:30	3
3390	99	698	688,5	cyclictest	0	-21	swapper/1	00:27:51	1
3390	99	698	688,5	cyclictest	0	-21	swapper/1	00:05:55	1
3392	99	697	685,7	cyclictest	0	-21	swapper/3	21:43:22	3
3392	99	697	685,7	cyclictest	0	-21	swapper/3	21:43:22	3
3392	99	697	685,7	cyclictest	0	-21	swapper/3	19:31:46	3
3390	99	697	688,4	cyclictest	0	-21	swapper/1	23:11:05	1
3390	99	697	687,5	cyclictest	0	-21	swapper/1	22:49:10	1
3390	99	696	686,5	cyclictest	0	-21	swapper/1	23:43:59	1
3390	99	696	686,5	cyclictest	0	-21	swapper/1	20:26:36	1
3390	99	694	684,5	cyclictest	0	-21	swapper/1	20:59:30	1
3390	99	693	683,5	cyclictest	0	-21	swapper/1	21:43:22	1
3390	99	693	683,5	cyclictest	0	-21	swapper/1	21:43:22	1
3390	99	693	683,5	cyclictest	0	-21	swapper/1	19:31:46	1
3391	99	689	674,8	cyclictest	0	-21	swapper/2	23:54:57	2
3389	99	686	660,21	cyclictest	27946	-21	kworker/0:1+events_freezable_power_	19:20:48	0
3391	99	682	674,3	cyclictest	0	-21	swapper/2	20:37:34	2
3389	99	677	656,16	cyclictest	32565	-21	kworker/0:2+events_freezable_power_	23:33:02	0
3389	99	677	656,16	cyclictest	32565	-21	kworker/0:2+events_freezable_power_	23:33:01	0
3389	99	676	655,16	cyclictest	32565	-21	kworker/0:2+events_freezable_power_	00:16:54	0
3389	99	676	654,17	cyclictest	32565	-21	kworker/0:2+events_freezable_power_	22:16:16	0
3389	99	676	654,17	cyclictest	32565	-21	kworker/0:2+events_freezable_power_	22:16:16	0
3389	99	676	654,17	cyclictest	27946	-21	kworker/0:1+events_freezable_power_	19:53:42	0
3389	99	675	653,17	cyclictest	15564	-21	kworker/0:5+events_freezable_power_	19:42:43	0
3389	99	674	653,16	cyclictest	12908	-21	kworker/0:3+events_freezable_power_	21:54:20	0
3389	99	674	653,16	cyclictest	12908	-21	kworker/0:3+events_freezable_power_	21:54:20	0
3389	99	673	657,11	cyclictest	19193	-21	kworker/0:4+events_freezable_power_	20:37:34	0
3389	99	673	652,16	cyclictest	26338	-21	kworker/0:1+events_freezable_power_	23:00:07	0
3389	99	673	652,16	cyclictest	21450	-21	kworker/0:0+events_freezable_power_	00:38:49	0
3389	99	668	647,16	cyclictest	27946	-21	kworker/0:1+events_freezable_power_	20:04:39	0
3389	99	668	647,15	cyclictest	12717	-21	kworker/0:4+events_freezable_power_	22:05:18	0
3389	99	663	642,16	cyclictest	32565	-21	kworker/0:2+events_freezable_power_	21:32:24	0
3389	99	663	642,16	cyclictest	15564	-21	kworker/0:5+events_freezable_power_	22:27:14	0
3389	99	661	635,20	cyclictest	32565	-21	kworker/0:2+events_freezable_power_	22:49:10	0
3389	99	660	639,16	cyclictest	12908	-21	kworker/0:3+events_freezable_power_	20:48:32	0
3389	99	660	638,17	cyclictest	26338	-21	kworker/0:1+events_freezable_power_	23:22:03	0
3389	99	659	638,16	cyclictest	21450	-21	kworker/0:0+events_freezable_power_	22:38:12	0
3389	99	658	636,17	cyclictest	8629	-21	kworker/0:5+events_freezable_power_	00:27:51	0
3389	99	657	635,17	cyclictest	21450	-21	kworker/0:0+events_freezable_power_	00:05:55	0
3389	99	655	634,16	cyclictest	21450	-21	kworker/0:0+events_freezable_power_	23:43:59	0
3389	99	655	634,16	cyclictest	15564	-21	kworker/0:5+events_freezable_power_	20:26:36	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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