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 Sun Jan 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
225028	99	537	14,522	cyclictest	0	-21	swapper/11	22:05:06	3
224984	99	493	15,59	cyclictest	0	-21	swapper/0	23:42:50	0
225037	99	489	488,1	cyclictest	0	-21	swapper/13	20:01:06	5
224994	99	476	474,2	cyclictest	367418	-21	kworker/3:2+i915-unordered	22:05:06	9
224984	99	470	16,58	cyclictest	0	-21	swapper/0	23:48:27	0
224984	99	469	21,30	cyclictest	0	-21	swapper/0	22:37:05	0
224998	99	467	466,1	cyclictest	326887	-21	kworker/4:0+i915-unordered	21:30:06	10
224990	99	464	16,30	cyclictest	0	-21	swapper/2	23:56:51	8
225032	99	463	433,30	cyclictest	0	-21	swapper/12	21:30:06	4
224990	99	463	18,443	cyclictest	0	-21	swapper/2	00:17:50	8
224990	99	462	14,29	cyclictest	0	-21	swapper/2	23:37:27	8
225028	99	460	459,1	cyclictest	424129	-21	kworker/11:2+i915-unordered	23:12:06	3
224990	99	459	12,28	cyclictest	0	-21	swapper/2	23:12:51	8
224984	99	459	11,30	cyclictest	0	-21	swapper/0	00:24:51	0
225017	99	458	457,1	cyclictest	330967	-21	kworker/9:0+i915-unordered	21:22:06	15
225003	99	456	455,1	cyclictest	233878	-21	kworker/5:0+i915-unordered	20:01:06	11
225037	99	455	454,1	cyclictest	0	-21	swapper/13	21:50:06	5
224990	99	454	6,30	cyclictest	0	-21	swapper/2	21:24:01	8
225003	99	452	451,1	cyclictest	347159	-21	kworker/5:1+i915-unordered	21:50:06	11
224990	99	452	7,30	cyclictest	0	-21	swapper/2	20:25:06	8
225022	99	450	448,2	cyclictest	335153	-21	kworker/10:2+i915-unordered	21:37:06	2
225045	99	449	25,30	cyclictest	0	-21	swapper/15	20:05:06	7
225045	99	449	25,30	cyclictest	0	-21	swapper/15	20:05:06	7
224998	99	449	447,2	cyclictest	448608	-21	kworker/4:1+i915-unordered	00:07:05	10
225045	99	447	23,29	cyclictest	0	-21	swapper/15	22:22:05	7
224990	99	447	22,28	cyclictest	0	-21	swapper/2	20:45:06	8
224990	99	447	19,31	cyclictest	0	-21	swapper/2	22:00:28	8
224990	99	445	22,422	cyclictest	0	-21	swapper/2	19:59:28	8
224990	99	445	20,29	cyclictest	0	-21	swapper/2	20:09:51	8
224990	99	445	20,29	cyclictest	0	-21	swapper/2	20:09:51	8
225022	99	444	441,2	cyclictest	290337	-21	kworker/10:0+events	20:31:50	2
224990	99	444	21,30	cyclictest	0	-21	swapper/2	22:52:05	8
225045	99	443	23,419	cyclictest	0	-21	swapper/15	00:30:50	7
225028	99	443	19,29	cyclictest	0	-21	swapper/11	19:12:06	3
224990	99	443	22,30	cyclictest	0	-21	swapper/2	20:30:06	8
224984	99	443	19,29	cyclictest	0	-21	swapper/0	20:29:29	0
225045	99	442	0,29	cyclictest	0	-21	swapper/15	20:22:27	7
225022	99	442	439,2	cyclictest	335153	-21	kworker/10:2+events	21:30:50	2
224984	99	442	14,30	cyclictest	0	-21	swapper/0	19:43:49	0
225045	99	441	26,414	cyclictest	0	-21	swapper/15	21:36:50	7
225028	99	441	440,1	cyclictest	0	-21	swapper/11	00:07:05	3
225028	99	441	2,0	cyclictest	0	-21	swapper/11	00:15:05	3
225014	99	441	20,30	cyclictest	0	-21	swapper/8	00:09:52	14
225014	99	441	19,30	cyclictest	0	-21	swapper/8	19:41:27	14
225014	99	441	18,30	cyclictest	0	-21	swapper/8	21:54:49	14
224984	99	441	14,30	cyclictest	0	-21	swapper/0	19:37:51	0
225045	99	440	19,420	cyclictest	0	-21	swapper/15	23:28:29	7
224998	99	440	434,5	cyclictest	1802	-21	snmpd	20:23:02	10
224984	99	440	17,28	cyclictest	0	-21	swapper/0	23:37:49	0
225045	99	439	21,415	cyclictest	0	-21	swapper/15	22:11:05	7
225014	99	439	17,30	cyclictest	0	-21	swapper/8	20:15:48	14
224990	99	439	13,424	cyclictest	0	-21	swapper/2	19:32:49	8
224990	99	439	10,29	cyclictest	0	-21	swapper/2	21:28:28	8
225014	99	438	18,29	cyclictest	0	-21	swapper/8	20:40:49	14
225003	99	438	18,30	cyclictest	0	-21	swapper/5	22:44:01	11
224990	99	438	14,28	cyclictest	0	-21	swapper/2	22:22:50	8
224990	99	438	13,28	cyclictest	0	-21	swapper/2	19:20:49	8
225045	99	437	16,420	cyclictest	0	-21	swapper/15	23:55:51	7
224990	99	437	15,29	cyclictest	0	-21	swapper/2	23:22:28	8
224986	99	437	407,30	cyclictest	0	-21	swapper/1	21:22:06	1
224984	99	437	13,30	cyclictest	0	-21	swapper/0	20:24:50	0
225045	99	436	14,421	cyclictest	0	-21	swapper/15	23:44:51	7
224998	99	436	435,1	cyclictest	84562	-21	kworker/4:1+i915-unordered	19:11:06	10
225045	99	435	15,418	cyclictest	0	-21	swapper/15	22:14:29	7
224990	99	435	17,30	cyclictest	0	-21	swapper/2	20:51:06	8
224990	99	435	14,419	cyclictest	0	-21	swapper/2	00:12:49	8
225045	99	434	15,418	cyclictest	0	-21	swapper/15	22:07:50	7
225009	99	434	433,1	cyclictest	1802	-21	snmpd	00:31:18	13
225045	99	433	14,418	cyclictest	0	-21	swapper/15	21:49:51	7
225045	99	433	0,29	cyclictest	0	-21	swapper/15	21:39:28	7
225007	99	432	426,5	cyclictest	1802	-21	snmpd	21:30:19	12
224998	99	432	432,0	cyclictest	0	-21	swapper/4	00:15:05	10
225032	99	431	430,1	cyclictest	0	-21	swapper/12	20:23:02	4
225032	99	431	401,30	cyclictest	0	-21	swapper/12	19:11:06	4
224990	99	431	11,418	cyclictest	0	-21	swapper/2	22:13:49	8
225045	99	429	6,30	cyclictest	0	-21	swapper/15	21:13:06	7
225032	99	429	428,1	cyclictest	464840	-21	kworker/12:0+i915-unordered	00:15:05	4
224994	99	429	427,2	cyclictest	282412	-21	kworker/3:1+pm	20:23:02	9
224990	99	429	428,1	cyclictest	0	-21	swapper/2	21:53:40	8
224986	99	429	429,0	cyclictest	0	-21	swapper/1	20:31:50	1
225045	99	427	4,30	cyclictest	0	-21	swapper/15	19:27:06	7
224994	99	427	427,0	cyclictest	0	-21	swapper/3	00:31:18	9
225009	99	426	421,3	cyclictest	237767	-21	kworker/7:1+i915-unordered	19:27:06	13
224990	99	426	7,29	cyclictest	0	-21	swapper/2	19:34:28	8
225040	99	425	424,1	cyclictest	0	-21	swapper/14	21:30:19	6
225022	99	425	425,0	cyclictest	0	-21	swapper/10	23:34:40	2
224994	99	425	10,412	cyclictest	0	-21	swapper/3	20:40:06	9
225003	99	424	1,29	cyclictest	0	-21	swapper/5	23:23:05	11
224998	99	424	424,0	cyclictest	249857	-21	kworker/4:1+i915-unordered	19:55:06	10
225028	99	423	2,420	cyclictest	0	-21	swapper/11	22:23:48	3
224986	99	422	418,3	cyclictest	383911	-21	kworker/1:1+pm	22:50:18	1
225009	99	421	415,5	cyclictest	376889	-21	gnome-shell	21:18:06	13
224998	99	421	2,418	cyclictest	0	-21	swapper/4	23:07:05	10
224998	99	421	2,418	cyclictest	0	-21	swapper/4	23:07:05	10
225045	99	420	25,394	cyclictest	0	-21	swapper/15	20:45:49	7
225045	99	420	25,394	cyclictest	0	-21	swapper/15	19:56:51	7
225045	99	420	24,395	cyclictest	0	-21	swapper/15	20:16:28	7
225037	99	420	24,395	cyclictest	0	-21	swapper/13	00:08:05	5
225032	99	420	420,0	cyclictest	0	-21	swapper/12	19:55:06	4
225032	99	420	417,2	cyclictest	443269	-21	kworker/u64:10+events_unbound	23:36:05	4
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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