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 Aug 05, 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
3574354	99	753	332,420	cyclictest	0	-21	swapper/15	20:02:24	7
3574307	99	554	4,29	cyclictest	0	-21	swapper/4	20:19:39	10
3574307	99	554	4,29	cyclictest	0	-21	swapper/4	20:19:39	10
3574300	99	525	524,1	cyclictest	3591216	-21	kworker/2:2+i915-unordered	19:32:39	8
3574316	99	497	497,0	cyclictest	0	-21	swapper/6	20:07:39	12
3574339	99	488	487,1	cyclictest	3816390	-21	kworker/11:0+i915-unordered	00:13:39	3
3574316	99	485	9,476	cyclictest	0	-21	swapper/6	20:32:39	12
3574304	99	485	8,59	cyclictest	0	-21	swapper/3	22:57:22	9
3574300	99	484	10,59	cyclictest	43	-21	ksoftirqd/2	19:19:39	8
3574316	99	480	39,440	cyclictest	0	-21	swapper/6	19:16:39	12
3574316	99	475	475,0	cyclictest	0	-21	swapper/6	19:28:39	12
3574339	99	474	473,1	cyclictest	3623515	-21	kworker/11:1+i915-unordered	20:07:39	3
3574326	99	474	472,2	cyclictest	3647844	-21	kworker/9:2+i915-unordered	20:41:39	15
3574316	99	474	11,462	cyclictest	0	-21	swapper/6	20:58:39	12
3574312	99	473	26,28	cyclictest	0	-21	swapper/5	19:21:01	11
3574304	99	473	23,30	cyclictest	0	-21	swapper/3	00:04:22	9
3574304	99	471	23,30	cyclictest	0	-21	swapper/3	20:56:25	9
3574304	99	471	23,29	cyclictest	0	-21	swapper/3	19:48:02	9
3574304	99	470	23,30	cyclictest	0	-21	swapper/3	22:30:21	9
3574304	99	470	21,30	cyclictest	0	-21	swapper/3	21:50:00	9
3574316	99	464	1,462	cyclictest	0	-21	swapper/6	19:32:39	12
3574312	99	462	15,30	cyclictest	0	-21	swapper/5	23:23:01	11
3574346	99	461	460,1	cyclictest	3667718	-21	kworker/13:1+i915-unordered	20:58:39	5
3574321	99	461	460,0	cyclictest	3675912	-21	kworker/7:0+i915-unordered	21:21:39	13
3574346	99	460	459,1	cyclictest	3716237	-21	kworker/13:1+i915-unordered	23:17:39	5
3574321	99	460	0,459	cyclictest	0	-21	swapper/7	20:31:00	13
3574321	99	460	0,459	cyclictest	0	-21	swapper/7	20:20:00	13
3574321	99	460	0,459	cyclictest	0	-21	swapper/7	20:20:00	13
3574312	99	459	13,29	cyclictest	0	-21	swapper/5	21:30:01	11
3574312	99	458	12,30	cyclictest	0	-21	swapper/5	23:29:59	11
3574326	99	456	453,2	cyclictest	3715889	-21	kworker/9:1+i915-unordered	21:58:39	15
3574350	99	454	451,3	cyclictest	0	-21	swapper/14	23:04:39	6
3574300	99	454	7,29	cyclictest	0	-21	swapper/2	00:12:22	8
3574316	99	453	452,1	cyclictest	0	-21	swapper/6	20:19:39	12
3574316	99	453	452,1	cyclictest	0	-21	swapper/6	20:19:39	12
3574354	99	452	451,1	cyclictest	3776471	-21	kworker/15:0+i915-unordered	23:26:39	7
3574307	99	452	23,427	cyclictest	0	-21	swapper/4	20:38:00	10
3574343	99	451	449,2	cyclictest	3603212	-21	kworker/12:2+i915-unordered	20:19:39	4
3574343	99	451	449,2	cyclictest	3603212	-21	kworker/12:2+i915-unordered	20:19:39	4
3574312	99	451	448,2	cyclictest	3533403	-21	kworker/u64:4+events_unbound	19:32:39	11
3574304	99	450	22,29	cyclictest	0	-21	swapper/3	19:34:00	9
3574354	99	448	445,2	cyclictest	3631398	-21	kworker/15:0+events	20:20:00	7
3574354	99	448	445,2	cyclictest	3631398	-21	kworker/15:0+events	20:20:00	7
3574331	99	448	25,422	cyclictest	0	-21	swapper/10	19:35:24	2
3574304	99	448	447,1	cyclictest	3627493	-21	kworker/3:1+pm	20:42:33	9
3574331	99	447	0,30	cyclictest	0	-21	swapper/10	22:09:25	2
3574321	99	447	444,2	cyclictest	3662440	-21	kworker/u64:9+events_unbound	23:37:39	13
3574307	99	447	446,1	cyclictest	1818	-21	snmpd	22:39:34	10
3574307	99	447	2,29	cyclictest	0	-21	swapper/4	19:26:24	10
3574297	99	447	446,1	cyclictest	697	50	irq/159-i915	21:58:39	1
3574354	99	446	443,2	cyclictest	3631398	-21	kworker/15:0+events	20:31:00	7
3574339	99	446	7,29	cyclictest	0	-21	swapper/11	23:11:39	3
3574339	99	446	7,29	cyclictest	0	-21	swapper/11	23:11:39	3
3574321	99	446	445,0	cyclictest	0	-21	swapper/7	22:39:00	13
3574304	99	446	23,29	cyclictest	3574015	-21	crond	19:10:34	9
3574297	99	446	0,27	cyclictest	0	-21	swapper/1	20:57:25	1
3574354	99	445	442,2	cyclictest	3742901	-21	kworker/u64:12+events_unbound	22:31:39	7
3574346	99	445	2,29	cyclictest	0	-21	swapper/13	21:59:39	5
3574293	99	445	444,1	cyclictest	0	-21	swapper/0	19:32:39	0
3574350	99	444	443,1	cyclictest	697	50	irq/159-i915	19:21:39	6
3574350	99	444	0,29	cyclictest	0	-21	swapper/14	20:56:39	6
3574354	99	443	443,0	cyclictest	0	-21	swapper/15	21:21:39	7
3574346	99	443	441,1	cyclictest	0	-21	swapper/13	20:20:00	5
3574346	99	443	441,1	cyclictest	0	-21	swapper/13	20:20:00	5
3574316	99	443	23,419	cyclictest	0	-21	swapper/6	23:48:00	12
3574316	99	443	21,421	cyclictest	0	-21	swapper/6	23:44:02	12
3574307	99	443	24,418	cyclictest	0	-21	swapper/4	23:04:01	10
3574307	99	443	24,418	cyclictest	0	-21	swapper/4	19:36:24	10
3574304	99	443	442,1	cyclictest	3627493	-21	kworker/3:1+pm	20:24:50	9
3574304	99	443	442,1	cyclictest	3627493	-21	kworker/3:1+pm	20:24:50	9
3574300	99	443	23,419	cyclictest	0	-21	swapper/2	23:26:00	8
3574354	99	442	439,2	cyclictest	3732165	-21	kworker/15:2+events	22:23:00	7
3574350	99	442	440,2	cyclictest	1818	-21	snmpd	23:50:33	6
3574323	99	442	439,2	cyclictest	3706662	-21	kworker/u64:1+events_unbound	22:09:39	14
3574316	99	442	20,421	cyclictest	0	-21	swapper/6	20:11:25	12
3574300	99	442	22,419	cyclictest	0	-21	swapper/2	21:12:00	8
3574297	99	442	0,441	cyclictest	0	-21	swapper/1	23:09:39	1
3574297	99	442	0,441	cyclictest	0	-21	swapper/1	23:09:39	1
3574297	99	442	0,441	cyclictest	0	-21	swapper/1	20:06:03	1
3574350	99	441	24,416	cyclictest	0	-21	swapper/14	20:04:24	6
3574316	99	441	19,421	cyclictest	0	-21	swapper/6	21:10:01	12
3574307	99	441	21,417	cyclictest	0	-21	swapper/4	21:56:02	10
3574297	99	441	0,440	cyclictest	0	-21	swapper/1	22:23:23	1
3574297	99	441	0,440	cyclictest	0	-21	swapper/1	20:05:40	1
3574297	99	441	0,440	cyclictest	0	-21	swapper/1	00:26:01	1
3574297	99	441	0,440	cyclictest	0	-21	swapper/1	00:00:39	1
3574343	99	440	25,414	cyclictest	0	-21	swapper/12	00:32:38	4
3574331	99	440	0,27	cyclictest	0	-21	swapper/10	21:13:39	2
3574316	99	440	17,422	cyclictest	0	-21	swapper/6	00:02:59	12
3574312	99	440	16,29	cyclictest	0	-21	swapper/5	19:09:21	11
3574307	99	440	20,418	cyclictest	0	-21	swapper/4	22:26:02	10
3574300	99	440	19,420	cyclictest	0	-21	swapper/2	19:55:02	8
3574293	99	440	21,418	cyclictest	0	-21	swapper/0	23:45:22	0
3574323	99	439	25,413	cyclictest	0	-21	swapper/8	19:23:21	14
3574321	99	439	438,1	cyclictest	0	-21	swapper/7	23:26:39	13
3574316	99	439	16,422	cyclictest	0	-21	swapper/6	23:10:00	12
3574316	99	439	16,422	cyclictest	0	-21	swapper/6	23:10:00	12
3574307	99	439	18,419	cyclictest	0	-21	swapper/4	20:44:23	10
3574346	99	438	22,416	cyclictest	0	-21	swapper/13	21:12:23	5
3574316	99	438	19,418	cyclictest	0	-21	swapper/6	20:39:22	12
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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