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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 Thu Nov 13, 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
1144334	99	684	683,1	cyclictest	0	-21	swapper/12	19:10:26	4
1144341	99	549	20,528	cyclictest	0	-21	swapper/14	19:12:04	6
1144299	99	535	13,521	cyclictest	0	-21	swapper/4	23:57:03	10
1144299	99	531	10,520	cyclictest	0	-21	swapper/4	20:13:04	10
1144337	99	528	6,521	cyclictest	0	-21	swapper/13	22:12:04	5
1144295	99	526	23,503	cyclictest	52	-21	ksoftirqd/3	21:58:04	9
1144337	99	525	4,521	cyclictest	0	-21	swapper/13	22:01:04	5
1144295	99	523	21,27	cyclictest	52	-21	ksoftirqd/3	20:57:04	9
1144325	99	513	512,1	cyclictest	0	-21	swapper/10	19:47:04	2
1144292	99	510	19,491	cyclictest	0	-21	swapper/2	23:07:03	8
1144325	99	507	506,1	cyclictest	1342053	-21	kworker/10:1+i915-unordered	23:07:03	2
1144302	99	504	499,3	cyclictest	1363384	-21	kworker/5:1+i915-unordered	23:37:03	11
1144344	99	502	500,2	cyclictest	1396247	-21	kworker/15:2+i915-unordered	00:14:03	7
1144325	99	499	498,1	cyclictest	1260071	-21	kworker/10:2+i915-unordered	21:52:04	2
1144325	99	499	498,1	cyclictest	1260071	-21	kworker/10:2+i915-unordered	21:52:04	2
1144337	99	498	497,1	cyclictest	0	-21	swapper/13	23:37:03	5
1144321	99	498	19,58	cyclictest	0	-21	swapper/9	21:54:46	15
1144321	99	498	19,58	cyclictest	0	-21	swapper/9	21:54:46	15
1144302	99	498	497,1	cyclictest	1292863	-21	kworker/5:0+i915-unordered	22:12:04	11
1144295	99	497	0,36	cyclictest	0	-21	swapper/3	23:06:03	9
1144302	99	496	495,1	cyclictest	1288591	-21	kworker/5:2+i915-unordered	22:01:04	11
1144307	99	495	494,1	cyclictest	1259906	-21	kworker/6:0+i915-unordered	21:32:04	12
1144288	99	495	465,30	cyclictest	0	-21	swapper/1	23:01:03	1
1144307	99	490	489,1	cyclictest	1334039	-21	kworker/6:2+i915-unordered	22:57:03	12
1144325	99	489	489,0	cyclictest	1190057	-21	kworker/10:2+i915-unordered	19:58:04	2
1144341	99	482	32,447	cyclictest	0	-21	swapper/14	19:48:47	6
1144330	99	476	475,1	cyclictest	772	50	irq/159-i915	23:57:03	3
1144344	99	475	473,1	cyclictest	1131398	-21	kworker/15:4+i915-unordered	19:09:04	7
1144344	99	475	473,1	cyclictest	1131398	-21	kworker/15:4+i915-unordered	19:09:04	7
1144341	99	475	25,29	cyclictest	0	-21	swapper/14	20:33:47	6
1144341	99	474	26,28	cyclictest	0	-21	swapper/14	22:02:25	6
1144334	99	470	470,0	cyclictest	0	-21	swapper/12	21:58:04	4
1144334	99	469	469,0	cyclictest	1227153	-21	kworker/12:0+i915-unordered	20:57:04	4
1144330	99	469	468,1	cyclictest	772	50	irq/159-i915	22:38:04	3
1144321	99	469	17,30	cyclictest	0	-21	swapper/9	20:50:25	15
1144295	99	469	468,1	cyclictest	0	-21	swapper/3	23:57:03	9
1144321	99	468	23,30	cyclictest	0	-21	swapper/9	19:20:49	15
1144307	99	468	468,0	cyclictest	0	-21	swapper/6	22:54:03	12
1144334	99	466	23,30	cyclictest	0	-21	swapper/12	20:16:47	4
1144321	99	464	17,30	cyclictest	0	-21	swapper/9	23:17:27	15
1144321	99	464	17,29	cyclictest	0	-21	swapper/9	23:13:26	15
1144295	99	463	461,2	cyclictest	1296727	-21	kworker/3:0+i915-unordered	22:38:04	9
1144311	99	460	13,30	cyclictest	0	-21	swapper/7	21:12:04	13
1144299	99	460	457,3	cyclictest	3682525	-21	snmpd	19:39:38	10
1144321	99	458	12,29	cyclictest	0	-21	swapper/9	20:24:26	15
1144302	99	456	10,29	cyclictest	0	-21	swapper/5	22:51:03	11
1144307	99	455	454,1	cyclictest	1153066	-21	kworker/6:0+i915-unordered	19:12:04	12
1144341	99	451	0,30	cyclictest	0	-21	swapper/14	22:36:46	6
1144341	99	451	0,30	cyclictest	0	-21	swapper/14	20:13:47	6
1144292	99	451	450,1	cyclictest	1177936	-21	kworker/2:2+i915-unordered	19:47:04	8
1144330	99	449	447,1	cyclictest	0	-21	swapper/11	00:30:48	3
1144330	99	449	447,1	cyclictest	0	-21	swapper/11	00:30:48	3
1144311	99	449	9,30	cyclictest	0	-21	swapper/7	19:49:59	13
1144341	99	448	26,420	cyclictest	0	-21	swapper/14	00:29:48	6
1144341	99	448	26,420	cyclictest	0	-21	swapper/14	00:29:48	6
1144341	99	448	25,422	cyclictest	0	-21	swapper/14	21:09:49	6
1144299	99	448	26,421	cyclictest	0	-21	swapper/4	20:55:26	10
1144299	99	448	26,418	cyclictest	0	-21	swapper/4	22:00:26	10
1144299	99	448	25,422	cyclictest	0	-21	swapper/4	23:53:25	10
1144341	99	447	26,419	cyclictest	0	-21	swapper/14	00:06:48	6
1144341	99	447	25,419	cyclictest	0	-21	swapper/14	23:23:47	6
1144341	99	447	0,29	cyclictest	0	-21	swapper/14	22:56:27	6
1144341	99	446	26,419	cyclictest	0	-21	swapper/14	20:23:47	6
1144288	99	444	443,1	cyclictest	1131644	-21	kworker/1:5+i915-unordered	20:36:04	1
1144334	99	443	442,1	cyclictest	1383017	-21	kworker/12:2+i915-unordered	23:57:03	4
1144321	99	443	0,30	cyclictest	0	-21	swapper/9	22:04:59	15
1144299	99	443	439,3	cyclictest	1165424	-21	kworker/4:1+pm	19:28:16	10
1144295	99	443	442,1	cyclictest	0	-21	swapper/3	22:10:25	9
1144295	99	443	0,27	cyclictest	0	-21	swapper/3	22:25:26	9
1144341	99	442	22,419	cyclictest	0	-21	swapper/14	21:32:25	6
1144321	99	442	21,417	cyclictest	0	-21	swapper/9	00:34:50	15
1144321	99	442	21,417	cyclictest	0	-21	swapper/9	00:34:50	15
1144311	99	442	441,1	cyclictest	0	-21	swapper/7	00:14:03	13
1144337	99	441	439,2	cyclictest	0	-21	swapper/13	20:40:26	5
1144337	99	441	19,421	cyclictest	0	-21	swapper/13	21:45:26	5
1144337	99	441	19,421	cyclictest	0	-21	swapper/13	21:45:26	5
1144299	99	441	21,420	cyclictest	0	-21	swapper/4	20:24:47	10
1144299	99	441	18,422	cyclictest	0	-21	swapper/4	00:32:26	10
1144299	99	441	18,422	cyclictest	0	-21	swapper/4	00:32:26	10
1144295	99	441	439,2	cyclictest	1415765	-21	kworker/3:1+i915-unordered	00:30:48	9
1144295	99	441	439,2	cyclictest	1415765	-21	kworker/3:1+i915-unordered	00:30:48	9
1144341	99	440	20,418	cyclictest	0	-21	swapper/14	20:17:26	6
1144341	99	440	19,420	cyclictest	0	-21	swapper/14	21:04:26	6
1144341	99	440	19,419	cyclictest	0	-21	swapper/14	23:41:25	6
1144341	99	440	18,421	cyclictest	0	-21	swapper/14	22:19:27	6
1144341	99	440	18,421	cyclictest	0	-21	swapper/14	21:44:49	6
1144337	99	440	19,420	cyclictest	0	-21	swapper/13	22:17:26	5
1144337	99	440	19,420	cyclictest	0	-21	swapper/13	19:39:48	5
1144334	99	440	438,2	cyclictest	1186015	-21	kworker/12:2+i915-unordered	20:13:04	4
1144330	99	440	439,1	cyclictest	772	50	irq/159-i915	22:46:04	3
1144299	99	440	20,420	cyclictest	0	-21	swapper/4	23:40:47	10
1144299	99	440	20,420	cyclictest	0	-21	swapper/4	22:15:46	10
1144299	99	440	19,420	cyclictest	0	-21	swapper/4	21:30:48	10
1144299	99	440	19,420	cyclictest	0	-21	swapper/4	19:43:26	10
1144299	99	440	17,422	cyclictest	0	-21	swapper/4	19:52:27	10
1144299	99	440	16,423	cyclictest	0	-21	swapper/4	22:52:25	10
1144341	99	439	20,419	cyclictest	0	-21	swapper/14	23:59:47	6
1144341	99	439	20,417	cyclictest	0	-21	swapper/14	21:15:46	6
1144341	99	439	19,418	cyclictest	0	-21	swapper/14	23:28:50	6
1144341	99	439	19,418	cyclictest	0	-21	swapper/14	21:26:26	6
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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