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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 May 18, 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
49935	99	535	5,529	cyclictest	0	-21	swapper/2	23:37:08	8
49974	99	520	15,43	cyclictest	0	-21	swapper/11	21:51:08	3
49947	99	498	0,497	cyclictest	0	-21	swapper/5	21:55:08	11
49932	99	498	7,490	cyclictest	0	-21	swapper/1	20:54:08	1
49979	99	495	494,1	cyclictest	171477	-21	kworker/12:0+i915-unordered	21:40:08	4
49979	99	495	494,1	cyclictest	171477	-21	kworker/12:0+i915-unordered	21:40:08	4
49974	99	484	55,424	cyclictest	171361	-21	kworker/11:1+i915-unordered	21:59:08	3
49956	99	476	475,1	cyclictest	139297	-21	kworker/7:0+i915-unordered	21:10:08	13
49932	99	473	26,29	cyclictest	0	-21	swapper/1	21:11:52	1
49983	99	468	1,58	cyclictest	0	-21	swapper/13	20:42:08	5
49958	99	466	22,29	cyclictest	0	-21	swapper/8	20:52:29	14
49974	99	462	460,2	cyclictest	107152	-21	kworker/11:2+i915-unordered	20:39:08	3
49932	99	461	14,30	cyclictest	0	-21	swapper/1	21:44:51	1
49932	99	461	14,30	cyclictest	0	-21	swapper/1	21:44:51	1
49990	99	460	458,1	cyclictest	210483	-21	kworker/15:2+i915-unordered	22:42:08	7
49935	99	459	8,450	cyclictest	0	-21	swapper/2	22:04:08	8
49939	99	456	12,29	cyclictest	0	-21	swapper/3	20:39:08	9
49956	99	453	452,1	cyclictest	0	-21	swapper/7	22:42:08	13
49943	99	453	5,29	cyclictest	0	-21	swapper/4	23:20:49	10
49932	99	453	26,30	cyclictest	0	-21	swapper/1	19:29:53	1
49990	99	451	450,1	cyclictest	0	-21	swapper/15	21:10:08	7
49947	99	451	29,28	cyclictest	0	-21	swapper/5	22:15:08	11
49932	99	450	0,29	cyclictest	0	-21	swapper/1	20:45:51	1
49974	99	449	446,2	cyclictest	127065	-21	kworker/11:0+events	21:00:52	3
49974	99	449	446,2	cyclictest	107152	-21	kworker/11:2+events	20:28:52	3
49932	99	449	4,30	cyclictest	0	-21	swapper/1	19:33:29	1
49947	99	447	23,423	cyclictest	0	-21	swapper/5	23:31:07	11
49935	99	447	26,420	cyclictest	0	-21	swapper/2	20:37:49	8
49958	99	446	444,1	cyclictest	66681	-21	kworker/8:1+i915-unordered	19:37:08	14
49962	99	445	444,1	cyclictest	0	-21	swapper/9	22:51:08	15
49985	99	444	22,421	cyclictest	0	-21	swapper/14	22:26:08	6
49939	99	444	443,1	cyclictest	697	50	irq/159-i915	21:59:08	9
49962	99	443	441,2	cyclictest	300422	-21	kworker/9:0+i915-unordered	00:21:08	15
49962	99	443	441,2	cyclictest	300422	-21	kworker/9:0+i915-unordered	00:21:08	15
49947	99	443	27,415	cyclictest	0	-21	swapper/5	20:45:08	11
49935	99	443	22,420	cyclictest	0	-21	swapper/2	20:22:31	8
49947	99	441	441,0	cyclictest	0	-21	swapper/5	21:18:31	11
49939	99	441	0,440	cyclictest	0	-21	swapper/3	22:46:19	9
49932	99	441	0,27	cyclictest	0	-21	swapper/1	00:08:31	1
49951	99	439	438,0	cyclictest	0	-21	swapper/6	22:36:43	12
49935	99	439	20,417	cyclictest	0	-21	swapper/2	21:04:29	8
49932	99	439	13,424	cyclictest	0	-21	swapper/1	22:25:31	1
49990	99	438	436,1	cyclictest	1818	-21	snmpd	22:36:43	7
49985	99	438	437,1	cyclictest	280305	-21	kworker/14:1+i915-unordered	23:57:08	6
49962	99	437	434,3	cyclictest	0	-21	swapper/9	22:00:03	15
49939	99	437	434,2	cyclictest	135133	-21	kworker/3:0+i915-unordered	20:53:30	9
49935	99	436	28,29	cyclictest	0	-21	swapper/2	19:29:08	8
49932	99	436	10,30	cyclictest	0	-21	swapper/1	00:19:51	1
49932	99	436	10,30	cyclictest	0	-21	swapper/1	00:19:51	1
49943	99	435	12,29	cyclictest	0	-21	swapper/4	00:33:28	10
49958	99	434	12,29	cyclictest	0	-21	swapper/8	00:28:30	14
49958	99	434	12,29	cyclictest	0	-21	swapper/8	00:28:30	14
49943	99	434	8,424	cyclictest	0	-21	swapper/4	20:15:29	10
49932	99	434	5,425	cyclictest	0	-21	swapper/1	00:17:31	1
49983	99	433	21,411	cyclictest	0	-21	swapper/13	19:46:08	5
49939	99	433	432,1	cyclictest	697	50	irq/159-i915	23:57:08	9
49974	99	432	431,1	cyclictest	0	-21	swapper/11	21:40:08	3
49974	99	432	431,1	cyclictest	0	-21	swapper/11	21:40:08	3
49943	99	432	7,29	cyclictest	0	-21	swapper/4	19:16:31	10
49939	99	432	429,2	cyclictest	697	50	irq/159-i915	20:04:08	9
49928	99	432	429,2	cyclictest	119000	-21	kworker/u64:2+events_unbound	21:14:08	0
49979	99	431	14,415	cyclictest	0	-21	swapper/12	21:34:08	4
49979	99	431	14,415	cyclictest	0	-21	swapper/12	21:34:08	4
49956	99	431	431,0	cyclictest	0	-21	swapper/7	22:36:43	13
49943	99	431	6,29	cyclictest	0	-21	swapper/4	23:12:30	10
49943	99	431	402,29	cyclictest	0	-21	swapper/4	21:40:08	10
49943	99	431	402,29	cyclictest	0	-21	swapper/4	21:40:08	10
49939	99	431	430,1	cyclictest	697	50	irq/159-i915	19:59:08	9
49932	99	431	6,29	cyclictest	0	-21	swapper/1	22:42:53	1
49932	99	431	6,28	cyclictest	0	-21	swapper/1	19:49:52	1
49932	99	431	5,30	cyclictest	0	-21	swapper/1	22:45:51	1
49932	99	431	5,29	cyclictest	0	-21	swapper/1	23:59:52	1
49990	99	430	427,3	cyclictest	300312	-21	kworker/15:2+pm	00:31:04	7
49990	99	430	427,3	cyclictest	300312	-21	kworker/15:2+pm	00:31:04	7
49943	99	430	8,29	cyclictest	0	-21	swapper/4	00:16:29	10
49939	99	430	429,1	cyclictest	697	50	irq/159-i915	00:31:07	9
49939	99	430	429,1	cyclictest	697	50	irq/159-i915	00:31:07	9
49932	99	430	3,29	cyclictest	0	-21	swapper/1	22:17:31	1
49947	99	429	7,30	cyclictest	0	-21	swapper/5	19:10:08	11
49943	99	429	6,29	cyclictest	0	-21	swapper/4	19:21:52	10
49943	99	429	4,29	cyclictest	0	-21	swapper/4	00:20:52	10
49943	99	429	4,29	cyclictest	0	-21	swapper/4	00:20:52	10
49939	99	429	428,1	cyclictest	697	50	irq/159-i915	20:36:08	9
49939	99	429	428,1	cyclictest	0	-21	swapper/3	23:48:18	9
49939	99	429	427,1	cyclictest	697	50	irq/159-i915	21:25:08	9
49939	99	429	426,2	cyclictest	697	50	irq/159-i915	20:26:08	9
49939	99	429	426,2	cyclictest	697	50	irq/159-i915	00:02:08	9
49932	99	429	6,29	cyclictest	0	-21	swapper/1	23:21:52	1
49932	99	429	4,29	cyclictest	0	-21	swapper/1	21:35:52	1
49932	99	429	4,29	cyclictest	0	-21	swapper/1	21:35:52	1
49932	99	429	3,30	cyclictest	0	-21	swapper/1	22:07:53	1
49932	99	429	3,28	cyclictest	0	-21	swapper/1	23:12:52	1
49932	99	429	10,417	cyclictest	0	-21	swapper/1	22:35:29	1
49968	99	428	425,2	cyclictest	114962	-21	kworker/u64:5+events_unbound	20:50:08	2
49947	99	428	8,30	cyclictest	0	-21	swapper/5	23:24:07	11
49943	99	428	2,29	cyclictest	0	-21	swapper/4	00:03:51	10
49939	99	428	427,1	cyclictest	697	50	irq/159-i915	22:04:08	9
49939	99	428	427,1	cyclictest	697	50	irq/159-i915	20:47:08	9
49983	99	427	427,0	cyclictest	179415	-21	kworker/13:1+i915-unordered	21:55:08	5
49943	99	427	13,414	cyclictest	0	-21	swapper/4	20:40:08	10
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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