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 Sat Jun 27, 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
655732	99	540	539,1	cyclictest	904520	-21	kworker/2:0+i915-unordered	23:58:52	8
655778	99	537	15,521	cyclictest	0	-21	swapper/13	00:15:52	5
655757	99	525	2,522	cyclictest	0	-21	swapper/9	20:02:53	15
655727	99	522	0,521	cyclictest	0	-21	swapper/1	22:40:52	1
655746	99	513	35,478	cyclictest	0	-21	swapper/6	22:22:52	12
655746	99	513	35,478	cyclictest	0	-21	swapper/6	22:22:52	12
655780	99	512	510,2	cyclictest	814488	-21	kworker/14:0+i915-unordered	22:22:52	6
655780	99	512	510,2	cyclictest	814488	-21	kworker/14:0+i915-unordered	22:22:52	6
655732	99	512	14,496	cyclictest	0	-21	swapper/2	19:37:53	8
655743	99	509	11,498	cyclictest	0	-21	swapper/5	23:40:52	11
655732	99	508	19,488	cyclictest	0	-21	swapper/2	00:30:52	8
655780	99	505	504,1	cyclictest	0	-21	swapper/14	21:15:53	6
655743	99	504	503,1	cyclictest	581245	-21	kworker/5:4+i915-unordered	19:42:53	11
655727	99	502	500,2	cyclictest	703233	-21	kworker/1:1+i915-unordered	20:02:53	1
655778	99	490	0,489	cyclictest	0	-21	swapper/13	20:25:53	5
655746	99	490	25,462	cyclictest	3785978	-21	pool-ibus-x11	21:01:36	12
655727	99	487	487,0	cyclictest	806286	-21	kworker/1:1+i915-unordered	22:18:52	1
655727	99	487	487,0	cyclictest	806286	-21	kworker/1:1+i915-unordered	22:18:52	1
655727	99	479	8,30	cyclictest	0	-21	swapper/1	20:00:53	1
655780	99	477	477,0	cyclictest	707917	-21	kworker/14:1+i915-unordered	20:13:53	6
655757	99	477	28,29	cyclictest	0	-21	swapper/9	21:06:15	15
655778	99	476	476,0	cyclictest	874950	-21	kworker/13:0+i915-unordered	23:40:52	5
655784	99	473	472,1	cyclictest	925975	-21	kworker/15:2+i915-unordered	00:19:52	7
655727	99	473	458,15	cyclictest	0	-21	swapper/1	22:12:52	1
655727	99	473	458,15	cyclictest	0	-21	swapper/1	22:12:52	1
655778	99	469	21,29	cyclictest	0	-21	swapper/13	20:19:14	5
655778	99	467	18,30	cyclictest	0	-21	swapper/13	21:14:14	5
655727	99	467	24,30	cyclictest	0	-21	swapper/1	20:37:52	1
655778	99	465	18,29	cyclictest	0	-21	swapper/13	20:00:14	5
655778	99	465	17,29	cyclictest	0	-21	swapper/13	23:13:37	5
655751	99	464	23,30	cyclictest	0	-21	swapper/7	19:48:53	13
655736	99	464	16,30	cyclictest	0	-21	swapper/3	23:39:14	9
655736	99	464	16,30	cyclictest	0	-21	swapper/3	00:33:14	9
655764	99	463	18,444	cyclictest	0	-21	swapper/10	21:55:52	2
655757	99	462	458,3	cyclictest	1818	-21	snmpd	00:20:25	15
655746	99	462	461,1	cyclictest	744665	-21	kworker/6:0+i915-unordered	21:15:53	12
655736	99	461	16,29	cyclictest	0	-21	swapper/3	21:39:38	9
655736	99	461	12,29	cyclictest	0	-21	swapper/3	23:48:34	9
655738	99	455	9,30	cyclictest	0	-21	swapper/4	22:30:14	10
655727	99	455	13,30	cyclictest	0	-21	swapper/1	21:37:52	1
655738	99	454	9,30	cyclictest	0	-21	swapper/4	23:00:15	10
655764	99	453	446,6	cyclictest	1818	-21	snmpd	22:59:04	2
655738	99	453	7,30	cyclictest	0	-21	swapper/4	23:54:35	10
655764	99	452	451,1	cyclictest	480903	-21	kworker/10:0+i915-unordered	19:37:53	2
655746	99	452	14,29	cyclictest	0	-21	swapper/6	19:45:53	12
655784	99	451	450,1	cyclictest	0	-21	swapper/15	23:03:52	7
655757	99	450	0,30	cyclictest	0	-21	swapper/9	21:53:15	15
655751	99	450	5,28	cyclictest	0	-21	swapper/7	21:31:48	13
655780	99	449	448,1	cyclictest	0	-21	swapper/14	19:55:53	6
655764	99	449	0,447	cyclictest	0	-21	swapper/10	23:38:52	2
655746	99	447	5,28	cyclictest	0	-21	swapper/6	22:34:52	12
655751	99	446	415,31	cyclictest	0	-21	swapper/7	00:19:52	13
655736	99	446	444,2	cyclictest	0	-21	swapper/3	23:43:27	9
655778	99	445	24,420	cyclictest	0	-21	swapper/13	21:23:14	5
655778	99	445	24,420	cyclictest	0	-21	swapper/13	20:09:36	5
655778	99	445	23,421	cyclictest	0	-21	swapper/13	21:46:37	5
655778	99	445	0,27	cyclictest	0	-21	swapper/13	19:27:36	5
655778	99	445	0,27	cyclictest	0	-21	swapper/13	19:27:36	5
655778	99	445	0,26	cyclictest	0	-21	swapper/13	19:36:37	5
655778	99	445	0,26	cyclictest	0	-21	swapper/13	19:36:37	5
655757	99	445	0,29	cyclictest	0	-21	swapper/9	20:58:15	15
655732	99	445	1,29	cyclictest	0	-21	swapper/2	19:54:53	8
655778	99	444	442,2	cyclictest	0	-21	swapper/13	22:34:35	5
655778	99	444	24,419	cyclictest	0	-21	swapper/13	23:05:36	5
655778	99	444	24,419	cyclictest	0	-21	swapper/13	22:24:34	5
655778	99	444	24,419	cyclictest	0	-21	swapper/13	22:24:34	5
655778	99	444	23,420	cyclictest	0	-21	swapper/13	21:29:38	5
655732	99	444	443,1	cyclictest	0	-21	swapper/2	23:09:14	8
655778	99	443	23,420	cyclictest	0	-21	swapper/13	23:18:13	5
655778	99	443	17,30	cyclictest	0	-21	swapper/13	20:40:38	5
655743	99	443	442,1	cyclictest	0	-21	swapper/5	23:43:27	11
655736	99	443	22,420	cyclictest	0	-21	swapper/3	21:31:36	9
655736	99	443	0,26	cyclictest	0	-21	swapper/3	21:19:14	9
655778	99	441	439,2	cyclictest	0	-21	swapper/13	19:42:53	5
655743	99	441	438,2	cyclictest	891595	-21	kworker/u64:8+events_unbound	00:08:52	11
655736	99	441	22,418	cyclictest	0	-21	swapper/3	00:08:36	9
655736	99	441	21,419	cyclictest	0	-21	swapper/3	22:19:37	9
655736	99	441	21,419	cyclictest	0	-21	swapper/3	22:19:37	9
655732	99	441	21,419	cyclictest	0	-21	swapper/2	21:26:36	8
655732	99	441	20,420	cyclictest	0	-21	swapper/2	21:32:38	8
655764	99	440	24,415	cyclictest	0	-21	swapper/10	20:04:53	2
655732	99	440	19,420	cyclictest	0	-21	swapper/2	22:17:15	8
655732	99	440	19,420	cyclictest	0	-21	swapper/2	22:17:15	8
655784	99	439	20,418	cyclictest	0	-21	swapper/15	23:56:47	7
655769	99	439	437,2	cyclictest	0	-21	swapper/11	19:42:53	3
655738	99	439	14,30	cyclictest	0	-21	swapper/4	22:47:52	10
655732	99	439	17,421	cyclictest	0	-21	swapper/2	22:52:36	8
655732	99	439	17,421	cyclictest	0	-21	swapper/2	20:31:14	8
655746	99	438	436,1	cyclictest	698754	-21	kworker/6:2+i915-unordered	19:55:53	12
655736	99	438	22,416	cyclictest	0	-21	swapper/3	22:28:52	9
655732	99	438	15,422	cyclictest	0	-21	swapper/2	20:41:37	8
655732	99	437	16,418	cyclictest	0	-21	swapper/2	20:18:14	8
655727	99	437	0,30	cyclictest	0	-21	swapper/1	23:07:52	1
655778	99	436	436,0	cyclictest	0	-21	swapper/13	23:42:52	5
655764	99	436	23,413	cyclictest	0	-21	swapper/10	19:49:53	2
655746	99	436	25,411	cyclictest	0	-21	swapper/6	22:19:52	12
655746	99	436	25,411	cyclictest	0	-21	swapper/6	22:19:52	12
655736	99	436	15,419	cyclictest	0	-21	swapper/3	20:21:14	9
655724	99	436	436,0	cyclictest	0	-21	swapper/0	22:57:15	0
655736	99	435	15,417	cyclictest	0	-21	swapper/3	20:43:15	9
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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