OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of system in rack #0, slot #5

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 rack0slot5.osadl.org (updated Wed Sep 02, 2026 00:43:47)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
3107998	99	712	293,418	cyclictest	0	-21	swapper/2	19:12:46	8
3108015	99	603	7,28	cyclictest	0	-21	swapper/7	00:25:46	13
3108042	99	602	22,578	cyclictest	0	-21	swapper/13	21:07:46	5
3108013	99	535	32,503	cyclictest	0	-21	swapper/6	20:46:46	12
3108045	99	509	508,1	cyclictest	3290932	-21	kworker/14:2+i915-unordered	23:28:46	6
3108026	99	508	507,1	cyclictest	3221599	-21	kworker/10:2+i915-unordered	21:27:46	2
3108026	99	508	507,1	cyclictest	3221599	-21	kworker/10:2+i915-unordered	21:27:46	2
3107994	99	506	504,2	cyclictest	0	-21	swapper/1	22:22:46	1
3108026	99	499	469,30	cyclictest	0	-21	swapper/10	20:38:46	2
3108023	99	484	14,59	cyclictest	0	-21	swapper/9	23:46:46	15
3108004	99	480	478,2	cyclictest	3289917	-21	kworker/4:2+i915-unordered	22:57:46	10
3108015	99	479	478,1	cyclictest	0	-21	swapper/7	22:33:46	13
3108037	99	476	446,30	cyclictest	0	-21	swapper/12	20:37:46	4
3108042	99	473	25,29	cyclictest	0	-21	swapper/13	00:02:30	5
3108026	99	473	472,1	cyclictest	0	-21	swapper/10	20:12:46	2
3108042	99	471	21,448	cyclictest	0	-21	swapper/13	22:49:30	5
3107998	99	471	21,29	cyclictest	0	-21	swapper/2	21:49:07	8
3107998	99	471	20,30	cyclictest	0	-21	swapper/2	23:20:08	8
3108037	99	470	469,1	cyclictest	0	-21	swapper/12	22:57:46	4
3107998	99	470	21,30	cyclictest	0	-21	swapper/2	23:14:07	8
3108042	99	469	23,30	cyclictest	0	-21	swapper/13	22:50:31	5
3108042	99	469	23,28	cyclictest	0	-21	swapper/13	20:25:27	5
3108045	99	468	467,1	cyclictest	3189278	-21	kworker/14:0+i915-unordered	20:46:46	6
3108042	99	468	19,30	cyclictest	0	-21	swapper/13	21:03:07	5
3107998	99	468	20,30	cyclictest	0	-21	swapper/2	21:28:07	8
3107998	99	468	20,30	cyclictest	0	-21	swapper/2	21:28:07	8
3108048	99	467	465,1	cyclictest	3355111	-21	kworker/15:0+i915-unordered	00:25:46	7
3108042	99	467	19,30	cyclictest	0	-21	swapper/13	21:29:08	5
3108042	99	467	19,30	cyclictest	0	-21	swapper/13	21:29:08	5
3108015	99	465	23,29	cyclictest	0	-21	swapper/7	23:16:46	13
3108048	99	463	461,2	cyclictest	3261802	-21	kworker/15:2+i915-unordered	22:33:46	7
3108023	99	463	16,30	cyclictest	0	-21	swapper/9	19:58:46	15
3108004	99	463	19,29	cyclictest	0	-21	swapper/4	21:00:46	10
3108048	99	457	14,30	cyclictest	0	-21	swapper/15	21:58:46	7
3108015	99	457	12,29	cyclictest	0	-21	swapper/7	21:26:31	13
3108015	99	457	12,29	cyclictest	0	-21	swapper/7	21:26:31	13
3108048	99	456	16,29	cyclictest	0	-21	swapper/15	19:38:46	7
3108033	99	456	453,2	cyclictest	3346345	-21	kworker/11:2+i915-unordered	00:02:46	3
3108009	99	456	451,4	cyclictest	3201374	-21	kworker/5:2+i915-unordered	21:07:46	11
3108004	99	455	454,1	cyclictest	3185064	-21	kworker/4:2+i915-unordered	20:37:46	10
3108023	99	454	452,2	cyclictest	3257870	-21	kworker/9:0+i915-unordered	22:22:46	15
3108042	99	453	4,30	cyclictest	0	-21	swapper/13	20:02:09	5
3108042	99	451	448,2	cyclictest	3209257	-21	kworker/u64:8+events_unbound	21:21:30	5
3108042	99	451	448,2	cyclictest	3209257	-21	kworker/u64:8+events_unbound	21:21:30	5
3108033	99	451	449,2	cyclictest	0	-21	swapper/11	21:27:46	3
3108033	99	451	449,2	cyclictest	0	-21	swapper/11	21:27:46	3
3108015	99	451	4,29	cyclictest	0	-21	swapper/7	19:41:31	13
3108042	99	450	0,30	cyclictest	0	-21	swapper/13	19:41:08	5
3108042	99	449	446,2	cyclictest	3228257	-21	kworker/u64:11+events_unbound	21:32:30	5
3108042	99	449	446,2	cyclictest	3228257	-21	kworker/u64:11+events_unbound	21:32:30	5
3108015	99	449	3,30	cyclictest	0	-21	swapper/7	23:02:09	13
3108015	99	449	3,30	cyclictest	0	-21	swapper/7	20:48:07	13
3108015	99	449	2,30	cyclictest	0	-21	swapper/7	23:39:07	13
3108042	99	448	0,30	cyclictest	0	-21	swapper/13	22:05:28	5
3108042	99	448	0,29	cyclictest	0	-21	swapper/13	21:17:30	5
3107990	99	448	447,1	cyclictest	1818	-21	snmpd	21:57:57	0
3108026	99	447	444,3	cyclictest	1818	-21	snmpd	20:54:20	2
3108042	99	444	25,418	cyclictest	0	-21	swapper/13	19:49:30	5
3108042	99	444	25,417	cyclictest	0	-21	swapper/13	21:40:29	5
3108048	99	443	442,1	cyclictest	1818	-21	snmpd	23:43:57	7
3108042	99	443	25,416	cyclictest	0	-21	swapper/13	22:18:32	5
3108042	99	443	23,417	cyclictest	0	-21	swapper/13	19:21:30	5
3108013	99	443	22,420	cyclictest	0	-21	swapper/6	19:28:31	12
3108013	99	443	21,421	cyclictest	0	-21	swapper/6	19:54:27	12
3107998	99	443	443,0	cyclictest	3318066	-21	kworker/2:0+pm	23:50:19	8
3107994	99	443	139,304	cyclictest	0	-21	swapper/1	20:20:09	1
3108042	99	442	23,417	cyclictest	0	-21	swapper/13	21:53:31	5
3108042	99	442	22,417	cyclictest	0	-21	swapper/13	21:36:07	5
3108033	99	442	442,0	cyclictest	0	-21	swapper/11	20:46:46	3
3108026	99	442	26,415	cyclictest	0	-21	swapper/10	22:25:46	2
3108048	99	441	26,415	cyclictest	0	-21	swapper/15	00:33:45	7
3108042	99	441	24,415	cyclictest	0	-21	swapper/13	23:31:30	5
3108042	99	441	23,416	cyclictest	0	-21	swapper/13	23:37:30	5
3108042	99	441	23,416	cyclictest	0	-21	swapper/13	22:44:30	5
3108042	99	441	23,416	cyclictest	0	-21	swapper/13	20:23:30	5
3108042	99	441	20,0	cyclictest	0	-21	swapper/13	20:58:09	5
3108019	99	441	26,414	cyclictest	0	-21	swapper/8	19:33:08	14
3108009	99	441	439,2	cyclictest	3310188	-21	kworker/5:2+i915-unordered	23:27:46	11
3108048	99	440	24,416	cyclictest	0	-21	swapper/15	23:20:46	7
3108033	99	440	439,1	cyclictest	3116587	-21	kworker/11:1+i915-unordered	19:11:46	3
3108033	99	440	439,1	cyclictest	0	-21	swapper/11	23:30:46	3
3108033	99	440	438,2	cyclictest	0	-21	swapper/11	22:57:46	3
3108013	99	440	19,420	cyclictest	0	-21	swapper/6	20:36:32	12
3108013	99	440	18,421	cyclictest	0	-21	swapper/6	23:11:31	12
3108013	99	440	18,421	cyclictest	0	-21	swapper/6	20:05:30	12
3108001	99	440	439,1	cyclictest	697	50	irq/159-i915	00:02:46	9
3108045	99	439	0,30	cyclictest	0	-21	swapper/14	23:22:46	6
3108042	99	439	23,414	cyclictest	0	-21	swapper/13	23:46:29	5
3108042	99	439	21,415	cyclictest	0	-21	swapper/13	23:26:08	5
3108042	99	439	20,418	cyclictest	0	-21	swapper/13	23:24:06	5
3108015	99	439	22,415	cyclictest	0	-21	swapper/7	19:10:07	13
3108013	99	439	18,420	cyclictest	0	-21	swapper/6	23:37:09	12
3108013	99	439	18,420	cyclictest	0	-21	swapper/6	20:13:30	12
3108013	99	439	17,421	cyclictest	0	-21	swapper/6	21:25:30	12
3108013	99	439	17,421	cyclictest	0	-21	swapper/6	21:25:30	12
3108048	99	438	435,2	cyclictest	3180359	-21	kworker/15:0+events	20:36:32	7
3108042	99	438	19,416	cyclictest	0	-21	swapper/13	21:14:09	5
3108033	99	438	437,1	cyclictest	0	-21	swapper/11	23:28:46	3
3108019	99	438	23,415	cyclictest	0	-21	swapper/8	22:36:08	14
3108015	99	438	20,417	cyclictest	0	-21	swapper/7	20:24:41	13
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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