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 Sat Jul 11, 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
2529768	99	518	0,517	cyclictest	0	-21	swapper/4	20:37:26	10
2529809	99	516	515,1	cyclictest	2564223	-21	kworker/14:1+i915-unordered	19:48:26	6
2529772	99	503	501,2	cyclictest	2680818	-21	kworker/5:0+i915-unordered	22:02:26	11
2529772	99	503	501,2	cyclictest	2680818	-21	kworker/5:0+i915-unordered	22:02:26	11
2529765	99	500	0,499	cyclictest	0	-21	swapper/3	23:02:26	9
2529781	99	498	496,2	cyclictest	2702525	-21	kworker/7:1+i915-unordered	22:48:26	13
2529805	99	492	491,1	cyclictest	0	-21	swapper/13	22:02:26	5
2529805	99	492	491,1	cyclictest	0	-21	swapper/13	22:02:26	5
2529814	99	488	458,30	cyclictest	0	-21	swapper/15	22:48:26	7
2529781	99	481	450,31	cyclictest	0	-21	swapper/7	19:58:26	13
2529768	99	480	478,2	cyclictest	0	-21	swapper/4	23:24:26	10
2529762	99	478	27,29	cyclictest	0	-21	swapper/2	23:30:48	8
2529814	99	474	473,1	cyclictest	2446417	-21	kworker/15:3+i915-unordered	19:58:26	7
2529762	99	470	26,30	cyclictest	0	-21	swapper/2	20:40:48	8
2529762	99	470	24,30	cyclictest	0	-21	swapper/2	21:10:48	8
2529762	99	469	25,29	cyclictest	0	-21	swapper/2	19:58:09	8
2529762	99	468	22,30	cyclictest	0	-21	swapper/2	21:52:26	8
2529786	99	466	465,1	cyclictest	0	-21	swapper/9	22:02:26	15
2529786	99	466	465,1	cyclictest	0	-21	swapper/9	22:02:26	15
2529786	99	465	1,463	cyclictest	0	-21	swapper/9	19:48:26	15
2529781	99	462	461,1	cyclictest	2689486	-21	kworker/7:2+i915-unordered	22:14:26	13
2529781	99	462	461,1	cyclictest	2689486	-21	kworker/7:2+i915-unordered	22:14:26	13
2529765	99	462	15,28	cyclictest	0	-21	swapper/3	22:12:47	9
2529765	99	462	15,28	cyclictest	0	-21	swapper/3	22:12:47	9
2529765	99	461	15,30	cyclictest	0	-21	swapper/3	21:00:48	9
2529809	99	459	458,1	cyclictest	2659653	-21	kworker/14:1+i915-unordered	22:03:26	6
2529809	99	459	458,1	cyclictest	2659653	-21	kworker/14:1+i915-unordered	22:03:26	6
2529765	99	455	7,30	cyclictest	0	-21	swapper/3	21:07:48	9
2529781	99	452	451,1	cyclictest	2797758	-21	kworker/7:1+i915-unordered	00:23:26	13
2529776	99	451	450,1	cyclictest	1818	-21	snmpd	21:58:20	12
2529757	99	451	450,1	cyclictest	697	50	irq/159-i915	22:02:26	1
2529757	99	451	450,1	cyclictest	697	50	irq/159-i915	22:02:26	1
2529757	99	450	449,1	cyclictest	697	50	irq/159-i915	20:53:26	1
2529801	99	449	5,29	cyclictest	0	-21	swapper/12	20:43:26	4
2529757	99	449	447,2	cyclictest	697	50	irq/159-i915	19:48:26	1
2529801	99	448	1,446	cyclictest	0	-21	swapper/12	23:25:26	4
2529791	99	448	447,1	cyclictest	2698813	-21	kworker/10:2+i915-unordered	22:27:26	2
2529786	99	448	447,1	cyclictest	0	-21	swapper/9	22:48:26	15
2529768	99	448	4,30	cyclictest	0	-21	swapper/4	21:49:26	10
2529762	99	448	25,420	cyclictest	0	-21	swapper/2	22:32:48	8
2529814	99	446	444,2	cyclictest	0	-21	swapper/15	00:23:26	7
2529783	99	444	25,418	cyclictest	0	-21	swapper/8	19:47:11	14
2529783	99	443	26,416	cyclictest	0	-21	swapper/8	19:59:09	14
2529768	99	443	22,420	cyclictest	0	-21	swapper/4	19:39:47	10
2529765	99	443	24,417	cyclictest	0	-21	swapper/3	22:10:49	9
2529765	99	443	24,417	cyclictest	0	-21	swapper/3	22:10:49	9
2529765	99	443	23,419	cyclictest	0	-21	swapper/3	22:23:48	9
2529765	99	442	23,418	cyclictest	0	-21	swapper/3	22:54:48	9
2529765	99	442	21,420	cyclictest	0	-21	swapper/3	21:48:48	9
2529776	99	441	440,1	cyclictest	0	-21	swapper/6	19:48:26	12
2529765	99	441	14,30	cyclictest	0	-21	swapper/3	19:22:47	9
2529765	99	441	14,30	cyclictest	0	-21	swapper/3	19:22:47	9
2529762	99	441	0,30	cyclictest	0	-21	swapper/2	20:34:26	8
2529801	99	439	24,415	cyclictest	0	-21	swapper/12	21:08:26	4
2529768	99	439	18,420	cyclictest	0	-21	swapper/4	20:49:47	10
2529776	99	438	435,2	cyclictest	2689619	-21	kworker/6:0+events	22:08:10	12
2529776	99	438	435,2	cyclictest	2689619	-21	kworker/6:0+events	22:08:10	12
2529776	99	438	435,2	cyclictest	2538735	-21	kworker/6:0+events	19:23:10	12
2529776	99	438	435,2	cyclictest	2538735	-21	kworker/6:0+events	19:23:10	12
2529786	99	437	437,0	cyclictest	0	-21	swapper/9	21:48:26	15
2529757	99	437	19,417	cyclictest	0	-21	swapper/1	20:19:49	1
2529786	99	436	434,1	cyclictest	2776623	-21	kworker/9:2+i915-unordered	23:59:26	15
2529768	99	436	16,419	cyclictest	0	-21	swapper/4	20:42:48	10
2529762	99	436	21,414	cyclictest	0	-21	swapper/2	20:03:26	8
2529786	99	435	433,2	cyclictest	0	-21	swapper/9	19:58:26	15
2529768	99	435	15,419	cyclictest	0	-21	swapper/4	21:24:47	10
2529768	99	435	15,419	cyclictest	0	-21	swapper/4	20:30:11	10
2529768	99	434	14,419	cyclictest	0	-21	swapper/4	20:02:11	10
2529765	99	434	21,413	cyclictest	0	-21	swapper/3	21:43:26	9
2529765	99	434	13,28	cyclictest	0	-21	swapper/3	20:15:26	9
2529786	99	433	432,1	cyclictest	0	-21	swapper/9	21:34:59	15
2529768	99	433	12,420	cyclictest	0	-21	swapper/4	20:08:49	10
2529757	99	433	432,1	cyclictest	697	50	irq/159-i915	22:48:26	1
2529801	99	432	18,413	cyclictest	0	-21	swapper/12	20:12:26	4
2529786	99	432	431,1	cyclictest	0	-21	swapper/9	20:37:26	15
2529783	99	432	14,417	cyclictest	0	-21	swapper/8	22:02:11	14
2529783	99	432	14,417	cyclictest	0	-21	swapper/8	22:02:11	14
2529776	99	432	15,416	cyclictest	0	-21	swapper/6	21:01:10	12
2529801	99	431	9,421	cyclictest	0	-21	swapper/12	20:17:47	4
2529801	99	431	16,414	cyclictest	0	-21	swapper/12	20:52:26	4
2529801	99	431	11,419	cyclictest	0	-21	swapper/12	22:51:11	4
2529791	99	431	7,29	cyclictest	0	-21	swapper/10	23:30:11	2
2529786	99	431	11,419	cyclictest	0	-21	swapper/9	19:41:48	15
2529762	99	431	23,408	cyclictest	0	-21	swapper/2	19:47:26	8
2529801	99	430	8,421	cyclictest	0	-21	swapper/12	00:33:46	4
2529801	99	430	8,421	cyclictest	0	-21	swapper/12	00:24:09	4
2529801	99	430	11,417	cyclictest	0	-21	swapper/12	21:06:10	4
2529753	99	430	17,412	cyclictest	0	-21	swapper/0	19:59:26	0
2529801	99	429	8,420	cyclictest	0	-21	swapper/12	19:55:48	4
2529786	99	428	9,418	cyclictest	0	-21	swapper/9	19:51:47	15
2529762	99	428	22,405	cyclictest	0	-21	swapper/2	21:31:21	8
2529762	99	428	0,30	cyclictest	0	-21	swapper/2	00:16:11	8
2529801	99	427	7,419	cyclictest	0	-21	swapper/12	21:51:11	4
2529801	99	425	3,421	cyclictest	0	-21	swapper/12	22:08:47	4
2529801	99	425	3,421	cyclictest	0	-21	swapper/12	22:08:47	4
2529786	99	425	423,1	cyclictest	2784821	-21	kworker/9:0+i915-unordered	00:20:12	15
2529781	99	425	424,1	cyclictest	0	-21	swapper/7	22:18:26	13
2529753	99	425	13,411	cyclictest	0	-21	swapper/0	20:35:26	0
2529814	99	424	423,1	cyclictest	0	-21	swapper/15	22:14:26	7
2529814	99	424	423,1	cyclictest	0	-21	swapper/15	22:14:26	7
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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