OSADL QA Farm on Real-time of Mainline Linux

About - Hardware - CPUs - Benchmarks - Graphics - Benchmarks - Kernels - Boards/Distros - Latency monitoring - Latency plots - System data - Profiles - Compare - Awards

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 Dec 03, 2025 00:43:48)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1747252	99	583	18,44	cyclictest	0	-21	swapper/3	22:00:27	9
1747248	99	562	27,534	cyclictest	0	-21	swapper/2	00:00:26	8
1747248	99	550	28,521	cyclictest	0	-21	swapper/2	23:47:26	8
1747252	99	526	26,499	cyclictest	0	-21	swapper/3	21:00:27	9
1747248	99	522	520,2	cyclictest	1768507	-21	kworker/2:0+i915-unordered	19:35:27	8
1747261	99	511	0,510	cyclictest	0	-21	swapper/5	19:45:27	11
1747285	99	505	504,1	cyclictest	1887653	-21	kworker/11:0+i915-unordered	22:00:27	3
1747277	99	500	498,2	cyclictest	0	-21	swapper/10	23:45:26	2
1747277	99	493	13,59	cyclictest	0	-21	swapper/10	00:14:10	2
1747285	99	487	487,0	cyclictest	0	-21	swapper/11	23:01:26	3
1747263	99	481	480,1	cyclictest	1805352	-21	kworker/6:3+i915-unordered	22:07:27	12
1747275	99	478	477,1	cyclictest	1965809	-21	kworker/9:0+i915-unordered	23:42:26	15
1747289	99	477	476,1	cyclictest	772	50	irq/159-i915	22:36:26	4
1747289	99	477	476,1	cyclictest	772	50	irq/159-i915	22:36:26	4
1747277	99	473	22,30	cyclictest	0	-21	swapper/10	22:18:50	2
1747256	99	471	470,1	cyclictest	1718004	-21	kworker/4:5+i915-unordered	19:06:27	10
1747248	99	470	469,1	cyclictest	0	-21	swapper/2	22:48:26	8
1747248	99	470	469,1	cyclictest	0	-21	swapper/2	22:48:26	8
1747248	99	470	42,419	cyclictest	1845491	-21	ntpq	20:59:48	8
1747256	99	468	467,1	cyclictest	1905033	-21	kworker/4:0+i915-unordered	22:36:26	10
1747256	99	468	467,1	cyclictest	1905033	-21	kworker/4:0+i915-unordered	22:36:26	10
1747248	99	467	16,29	cyclictest	1989397	-21	ntpq	23:54:48	8
1747275	99	466	465,1	cyclictest	1825859	-21	kworker/9:2+i915-unordered	20:53:27	15
1747301	99	465	435,30	cyclictest	0	-21	swapper/15	20:28:27	7
1747263	99	465	464,1	cyclictest	0	-21	swapper/6	22:17:27	12
1747263	99	465	464,1	cyclictest	0	-21	swapper/6	19:10:27	12
1747248	99	464	406,29	cyclictest	0	-21	swapper/2	23:04:22	8
1747256	99	462	461,1	cyclictest	1916728	-21	kworker/4:1+i915-unordered	22:32:26	10
1747256	99	462	460,1	cyclictest	1850700	-21	kworker/4:2+i915-unordered	21:18:27	10
1747256	99	461	461,0	cyclictest	0	-21	swapper/4	23:01:26	10
1747256	99	461	458,2	cyclictest	0	-21	swapper/4	22:26:26	10
1747256	99	461	0,460	cyclictest	0	-21	swapper/4	23:45:26	10
1747239	99	460	14,30	cyclictest	0	-21	swapper/0	23:18:26	0
1747277	99	457	455,2	cyclictest	1986351	-21	kworker/10:0+i915-unordered	00:00:26	2
1747244	99	457	10,30	cyclictest	0	-21	swapper/1	20:55:26	1
1747289	99	456	455,1	cyclictest	772	50	irq/159-i915	22:32:26	4
1747289	99	455	454,1	cyclictest	772	50	irq/159-i915	21:18:27	4
1747244	99	455	12,28	cyclictest	0	-21	swapper/1	22:46:26	1
1747244	99	455	12,28	cyclictest	0	-21	swapper/1	22:46:26	1
1747289	99	454	453,1	cyclictest	772	50	irq/159-i915	23:45:26	4
1747256	99	454	454,0	cyclictest	0	-21	swapper/4	19:55:27	10
1747256	99	454	454,0	cyclictest	0	-21	swapper/4	19:55:27	10
1747285	99	453	453,0	cyclictest	0	-21	swapper/11	22:09:48	3
1747277	99	451	21,30	cyclictest	0	-21	swapper/10	21:41:48	2
1747277	99	450	25,28	cyclictest	0	-21	swapper/10	22:22:26	2
1747275	99	450	420,30	cyclictest	0	-21	swapper/9	19:13:27	15
1747271	99	450	449,0	cyclictest	1784922	-21	kworker/8:2+i915-unordered	19:55:27	14
1747271	99	450	449,0	cyclictest	1784922	-21	kworker/8:2+i915-unordered	19:55:27	14
1747301	99	449	448,1	cyclictest	1821759	-21	kworker/15:1+i915-unordered	20:38:27	7
1747285	99	448	447,1	cyclictest	0	-21	swapper/11	20:54:48	3
1747285	99	447	446,1	cyclictest	1813724	-21	kworker/11:0+i915-unordered	21:00:27	3
1747252	99	447	26,420	cyclictest	0	-21	swapper/3	22:07:12	9
1747252	99	447	25,421	cyclictest	0	-21	swapper/3	23:37:48	9
1747298	99	446	24,421	cyclictest	0	-21	swapper/14	20:35:48	6
1747289	99	446	22,421	cyclictest	0	-21	swapper/12	23:33:48	4
1747277	99	446	24,421	cyclictest	0	-21	swapper/10	19:54:11	2
1747277	99	446	24,421	cyclictest	0	-21	swapper/10	19:54:11	2
1747261	99	446	25,420	cyclictest	0	-21	swapper/5	00:10:49	11
1747261	99	445	22,419	cyclictest	0	-21	swapper/5	23:22:11	11
1747256	99	445	444,1	cyclictest	0	-21	swapper/4	00:00:26	10
1747289	99	443	25,417	cyclictest	0	-21	swapper/12	23:27:26	4
1747289	99	443	21,419	cyclictest	0	-21	swapper/12	23:05:10	4
1747277	99	443	24,416	cyclictest	0	-21	swapper/10	21:05:26	2
1747267	99	443	0,30	cyclictest	0	-21	swapper/7	23:34:22	13
1747252	99	443	22,418	cyclictest	0	-21	swapper/3	00:07:11	9
1747301	99	442	439,2	cyclictest	1800043	-21	kworker/u64:6+events_unbound	20:54:48	7
1747289	99	442	24,0	cyclictest	0	-21	swapper/12	22:02:26	4
1747289	99	442	21,419	cyclictest	0	-21	swapper/12	21:51:10	4
1747277	99	442	22,417	cyclictest	0	-21	swapper/10	21:13:26	2
1747275	99	442	2,439	cyclictest	0	-21	swapper/9	22:42:58	15
1747275	99	442	2,439	cyclictest	0	-21	swapper/9	22:42:58	15
1747285	99	441	441,0	cyclictest	0	-21	swapper/11	19:57:12	3
1747285	99	441	441,0	cyclictest	0	-21	swapper/11	19:57:12	3
1747261	99	441	21,418	cyclictest	0	-21	swapper/5	21:55:09	11
1747252	99	441	20,419	cyclictest	0	-21	swapper/3	21:57:48	9
1747248	99	441	21,419	cyclictest	0	-21	swapper/2	21:19:48	8
1747298	99	440	19,420	cyclictest	0	-21	swapper/14	21:23:49	6
1747277	99	440	21,419	cyclictest	0	-21	swapper/10	20:07:09	2
1747277	99	440	21,417	cyclictest	0	-21	swapper/10	22:45:10	2
1747277	99	440	21,417	cyclictest	0	-21	swapper/10	22:45:10	2
1747277	99	440	20,418	cyclictest	0	-21	swapper/10	22:11:11	2
1747267	99	440	439,1	cyclictest	1809664	-21	kworker/7:2+i915-unordered	20:28:27	13
1747252	99	440	21,417	cyclictest	0	-21	swapper/3	23:55:10	9
1747248	99	440	440,0	cyclictest	0	-21	swapper/2	20:49:50	8
1747244	99	440	439,1	cyclictest	1783628	-21	kworker/u64:7+events_unbound	20:08:27	1
1747261	99	439	21,416	cyclictest	0	-21	swapper/5	20:24:48	11
1747252	99	439	18,421	cyclictest	0	-21	swapper/3	23:07:12	9
1747252	99	439	18,419	cyclictest	0	-21	swapper/3	20:50:11	9
1747248	99	439	22,417	cyclictest	0	-21	swapper/2	20:54:48	8
1747285	99	438	0,437	cyclictest	0	-21	swapper/11	19:13:48	3
1747252	99	438	18,418	cyclictest	0	-21	swapper/3	22:17:09	9
1747248	99	438	23,415	cyclictest	0	-21	swapper/2	22:59:22	8
1747244	99	438	24,412	cyclictest	0	-21	swapper/1	20:02:27	1
1747244	99	438	24,412	cyclictest	0	-21	swapper/1	20:02:27	1
1747298	99	437	19,417	cyclictest	0	-21	swapper/14	19:52:50	6
1747298	99	437	19,417	cyclictest	0	-21	swapper/14	19:52:50	6
1747263	99	437	18,418	cyclictest	0	-21	swapper/6	22:03:49	12
1747248	99	437	437,0	cyclictest	0	-21	swapper/2	21:14:22	8
1747298	99	436	14,422	cyclictest	0	-21	swapper/14	20:39:49	6
1747277	99	436	19,416	cyclictest	0	-21	swapper/10	23:17:26	2
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


Access: public		Short link to this page
This page was last modified on 2019-05-28 - 00:17