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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 Mon Aug 10, 2026 00:43:48)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
3015277	99	709	311,397	cyclictest	0	-21	swapper/3	20:05:12	9
3015310	99	513	511,1	cyclictest	3023911	-21	kworker/11:0+i915-unordered	19:47:30	3
3015310	99	506	9,496	cyclictest	124	-21	ksoftirqd/11	19:54:30	3
3015300	99	494	464,30	cyclictest	0	-21	swapper/9	22:32:29	15
3015281	99	491	489,1	cyclictest	3112506	-21	kworker/4:2+i915-unordered	21:11:30	10
3015300	99	486	485,0	cyclictest	3205264	-21	kworker/9:0+i915-unordered	23:09:29	15
3015328	99	478	476,2	cyclictest	3237262	-21	kworker/15:1+i915-unordered	00:02:29	7
3015323	99	478	478,0	cyclictest	3217043	-21	kworker/14:1+i915-unordered	23:31:29	6
3015281	99	475	473,2	cyclictest	3233235	-21	kworker/4:1+i915-unordered	23:42:29	10
3015281	99	475	473,2	cyclictest	3144804	-21	kworker/4:2+i915-unordered	21:47:29	10
3015281	99	475	473,2	cyclictest	3056158	-21	kworker/4:0+i915-unordered	20:47:30	10
3015281	99	474	13,460	cyclictest	0	-21	swapper/4	00:12:29	10
3015310	99	472	469,3	cyclictest	0	-21	swapper/11	21:46:29	3
3015277	99	471	471,0	cyclictest	0	-21	swapper/3	00:12:29	9
3015310	99	469	469,0	cyclictest	0	-21	swapper/11	00:09:29	3
3015281	99	468	13,454	cyclictest	0	-21	swapper/4	23:09:29	10
3015281	99	466	30,435	cyclictest	0	-21	swapper/4	19:54:30	10
3015265	99	466	41,422	cyclictest	3120875	-21	perf	21:20:25	0
3015315	99	464	16,28	cyclictest	0	-21	swapper/12	23:48:51	4
3015286	99	463	0,59	cyclictest	0	-21	swapper/5	00:05:51	11
3015315	99	460	11,30	cyclictest	0	-21	swapper/12	00:04:11	4
3015292	99	458	457,1	cyclictest	0	-21	swapper/7	00:02:29	13
3015315	99	456	6,30	cyclictest	0	-21	swapper/12	00:00:13	4
3015305	99	456	455,1	cyclictest	3076315	-21	kworker/10:2+i915-unordered	20:39:30	2
3015323	99	455	8,29	cyclictest	0	-21	swapper/14	23:35:53	6
3015300	99	454	453,1	cyclictest	3184913	-21	kworker/9:2+i915-unordered	22:38:29	15
3015265	99	453	25,30	cyclictest	0	-21	swapper/0	21:50:13	0
3015265	99	453	24,30	cyclictest	0	-21	swapper/0	22:38:14	0
3015300	99	451	421,30	cyclictest	0	-21	swapper/9	20:31:30	15
3015265	99	451	24,28	cyclictest	0	-21	swapper/0	22:45:12	0
3015310	99	449	22,426	cyclictest	124	-21	ksoftirqd/11	20:56:29	3
3015300	99	449	2,446	cyclictest	106	-21	ksoftirqd/9	00:19:29	15
3015300	99	449	2,446	cyclictest	106	-21	ksoftirqd/9	00:19:29	15
3015289	99	449	0,29	cyclictest	0	-21	swapper/6	23:59:50	12
3015281	99	449	9,439	cyclictest	0	-21	swapper/4	22:32:29	10
3015265	99	449	0,30	cyclictest	0	-21	swapper/0	22:11:51	0
3015277	99	448	448,0	cyclictest	3009945	-21	kworker/3:4+i915-unordered	19:54:30	9
3015315	99	447	24,30	cyclictest	0	-21	swapper/12	19:43:11	4
3015281	99	447	446,1	cyclictest	0	-21	swapper/4	20:52:30	10
3015281	99	446	445,1	cyclictest	0	-21	swapper/4	20:39:30	10
3015315	99	445	23,419	cyclictest	0	-21	swapper/12	23:27:11	4
3015315	99	444	443,1	cyclictest	697	50	irq/159-i915	23:42:29	4
3015281	99	444	442,2	cyclictest	0	-21	swapper/4	19:47:30	10
3015281	99	444	0,28	cyclictest	0	-21	swapper/4	23:49:29	10
3015277	99	443	442,1	cyclictest	3009945	-21	kworker/3:4+i915-unordered	21:46:29	9
3015277	99	443	442,1	cyclictest	0	-21	swapper/3	20:52:30	9
3015323	99	441	21,419	cyclictest	0	-21	swapper/14	22:03:52	6
3015315	99	440	18,420	cyclictest	0	-21	swapper/12	23:37:12	4
3015273	99	440	439,1	cyclictest	3278388	-21	kworker/2:0+i915-unordered	00:34:29	8
3015286	99	439	25,413	cyclictest	0	-21	swapper/5	23:56:29	11
3015277	99	439	25,413	cyclictest	0	-21	swapper/3	21:52:29	9
3015269	99	439	437,2	cyclictest	3169042	-21	kworker/1:0+i915-unordered	22:32:29	1
3015310	99	437	40,396	cyclictest	0	-21	swapper/11	00:30:25	3
3015310	99	437	40,396	cyclictest	0	-21	swapper/11	00:30:25	3
3015305	99	437	407,30	cyclictest	0	-21	swapper/10	00:34:29	2
3015305	99	436	433,2	cyclictest	3148679	-21	kworker/u64:13+events_unbound	21:58:29	2
3015281	99	436	434,1	cyclictest	0	-21	swapper/4	19:57:30	10
3015277	99	436	8,30	cyclictest	0	-21	swapper/3	20:18:51	9
3015269	99	436	19,29	cyclictest	0	-21	swapper/1	23:11:29	1
3015265	99	436	14,418	cyclictest	0	-21	swapper/0	21:43:52	0
3015265	99	436	14,418	cyclictest	0	-21	swapper/0	21:43:52	0
3015320	99	435	433,2	cyclictest	3156910	-21	kworker/13:2+i915-unordered	22:04:29	5
3015320	99	435	19,415	cyclictest	0	-21	swapper/13	23:58:29	5
3015315	99	435	15,418	cyclictest	0	-21	swapper/12	22:08:52	4
3015315	99	435	14,420	cyclictest	0	-21	swapper/12	23:54:12	4
3015273	99	435	434,1	cyclictest	0	-21	swapper/2	21:58:29	8
3015323	99	433	14,418	cyclictest	0	-21	swapper/14	23:05:52	6
3015323	99	433	12,420	cyclictest	0	-21	swapper/14	20:15:52	6
3015269	99	433	22,410	cyclictest	0	-21	swapper/1	23:39:29	1
3015281	99	431	8,30	cyclictest	61	-21	ksoftirqd/4	22:46:29	10
3015277	99	431	430,1	cyclictest	0	-21	swapper/3	19:57:30	9
3015320	99	429	428,1	cyclictest	0	-21	swapper/13	21:45:02	5
3015320	99	429	428,1	cyclictest	0	-21	swapper/13	21:45:02	5
3015320	99	428	427,1	cyclictest	3233393	-21	kworker/13:2+events	00:05:51	5
3015300	99	428	426,1	cyclictest	0	-21	swapper/9	20:20:51	15
3015281	99	428	427,1	cyclictest	0	-21	swapper/4	00:34:29	10
3015265	99	428	1,30	cyclictest	0	-21	swapper/0	20:41:14	0
3015315	99	427	1,30	cyclictest	0	-21	swapper/12	22:52:52	4
3015273	99	427	426,1	cyclictest	0	-21	swapper/2	20:39:30	8
3015269	99	427	427,0	cyclictest	0	-21	swapper/1	23:09:29	1
3015265	99	427	422,4	cyclictest	1818	-21	snmpd	19:20:04	0
3015265	99	427	13,412	cyclictest	0	-21	swapper/0	23:06:52	0
3015296	99	426	3,29	cyclictest	0	-21	swapper/8	22:31:13	14
3015265	99	426	0,29	cyclictest	0	-21	swapper/0	23:34:14	0
3015323	99	425	420,3	cyclictest	3253368	-21	kworker/14:0+events	23:59:50	6
3015300	99	425	11,413	cyclictest	0	-21	swapper/9	23:44:29	15
3015265	99	425	0,29	cyclictest	0	-21	swapper/0	22:53:14	0
3015323	99	424	5,418	cyclictest	0	-21	swapper/14	22:13:13	6
3015277	99	424	423,1	cyclictest	0	-21	swapper/3	19:47:30	9
3015320	99	423	6,416	cyclictest	0	-21	swapper/13	21:53:29	5
3015315	99	423	22,398	cyclictest	0	-21	swapper/12	20:37:52	4
3015300	99	423	423,0	cyclictest	3261295	-21	kworker/9:0+i915-unordered	00:24:29	15
3015300	99	423	423,0	cyclictest	3261295	-21	kworker/9:0+i915-unordered	00:24:29	15
3015300	99	423	421,1	cyclictest	3057086	-21	kworker/9:0+i915-unordered	19:55:53	15
3015315	99	422	421,1	cyclictest	697	50	irq/159-i915	20:47:30	4
3015286	99	422	422,0	cyclictest	0	-21	swapper/5	20:29:03	11
3015281	99	422	421,1	cyclictest	0	-21	swapper/4	00:04:29	10
3015265	99	422	23,396	cyclictest	0	-21	swapper/0	21:05:13	0
3015315	99	421	24,395	cyclictest	0	-21	swapper/12	22:37:13	4
3015315	99	421	22,396	cyclictest	0	-21	swapper/12	20:54:23	4
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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