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Default latency plot of system in rack #6, slot #6

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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

Characteristics of the 100 highest latencies:

System rack6slot6 (updated Fri Jul 24, 2026 00:43:29)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
32419	99	106619	53402,53199	cyclictest	2099	-21	runrttasks	19:39:45	0
32419	99	106612	53395,53200	cyclictest	27429	-21	ssh	22:56:22	0
32419	99	106576	53392,53093	cyclictest	9	-21	ksoftirqd/0	22:22:12	0
32419	99	106546	53465,53081	cyclictest	0	-21	swapper	23:25:40	0
32419	99	106489	53442,52982	cyclictest	39	50	irq/9-acpi	00:00:51	0
32419	99	106483	53470,53013	cyclictest	0	-21	swapper	22:44:18	0
32419	99	106478	53386,53029	cyclictest	1133	-21	kworker/0:1	00:39:32	0
32419	99	106469	53458,53011	cyclictest	0	-21	swapper	23:06:15	0
32419	99	106466	53455,53011	cyclictest	0	-21	swapper	21:30:37	0
32419	99	106394	53439,52955	cyclictest	0	-21	swapper	22:18:01	0
32419	99	106368	53422,52946	cyclictest	0	-21	swapper	20:44:44	0
32419	99	106293	53471,52822	cyclictest	0	-21	swapper	19:29:22	0
32419	99	106251	53448,52803	cyclictest	0	-21	swapper	20:19:57	0
32419	99	106202	53467,52735	cyclictest	0	-21	swapper	20:37:02	0
32419	99	106174	53451,52723	cyclictest	0	-21	swapper	19:49:08	0
32419	99	106137	53433,52704	cyclictest	0	-21	swapper	20:12:25	0
32419	99	106115	53421,52694	cyclictest	0	-21	swapper	20:28:19	0
32419	99	106097	53029,53066	cyclictest	0	-21	swapper	20:01:52	0
32419	99	106086	52990,53094	cyclictest	0	-21	swapper	22:51:31	0
32419	99	106071	52988,53081	cyclictest	0	-21	swapper	20:56:07	0
32419	99	106061	52990,53069	cyclictest	0	-21	swapper	19:14:18	0
32419	99	105107	53001,52104	cyclictest	0	-21	swapper	19:34:24	0
32419	99	53901	26,53809	cyclictest	1348	50	irq/9-eth0	21:14:23	0
32419	99	53353	27,53233	cyclictest	0	-21	swapper	19:41:26	0
32419	99	53214	25,0	cyclictest	0	-21	swapper	20:31:10	0
32419	99	53183	24,0	cyclictest	0	-21	swapper	20:23:18	0
32074	2	19906	19658,214	sleep0	0	-21	swapper	19:08:26	0
32419	99	5263	2658,2602	cyclictest	2679	-21	devkit-power-da	00:11:34	0
32419	99	2448	1091,1261	cyclictest	1348	50	irq/9-eth0	23:30:32	0
32419	99	2430	1042,1262	cyclictest	31312	-21	ssh	21:29:57	0
32419	99	2212	1075,1039	cyclictest	9	-21	ksoftirqd/0	22:10:29	0
32419	99	2146	1023,997	cyclictest	21743	-21	ssh	00:21:06	0
32419	99	2141	1028,1075	cyclictest	26256	-21	ssh	21:21:35	0
32419	99	2111	1051,994	cyclictest	9	50	ksoftirqd/0	20:06:23	0
32419	99	2059	1021,1004	cyclictest	0	-21	swapper	21:51:03	0
32419	99	2051	1019,1011	cyclictest	0	-21	swapper	23:10:36	0
32419	99	2034	1065,870	cyclictest	4285	-21	ssh	23:55:49	0
32419	99	2026	985,1007	cyclictest	0	-21	swapper	21:45:52	0
32419	99	2009	985,990	cyclictest	311	-21	jbd2/dm-0-8	19:20:00	0
32419	99	1973	958,978	cyclictest	1961	-21	ssh	23:53:28	0
32419	99	1948	953,961	cyclictest	13235	-21	ssh	23:22:49	0
32419	99	1917	929,967	cyclictest	0	-21	swapper	21:16:13	0
32419	99	1911	1081,739	cyclictest	9	-21	ksoftirqd/0	21:58:35	0
32419	99	1905	947,942	cyclictest	20207	-21	ssh	22:45:49	0
32419	99	1899	1024,838	cyclictest	19102	-21	ssh	00:17:55	0
32419	99	1855	1000,819	cyclictest	14889	-21	ssh	22:39:17	0
32419	99	1785	921,830	cyclictest	0	-21	swapper	00:34:30	0
32419	99	1764	883,867	cyclictest	39	50	irq/9-acpi	23:39:24	0
32419	99	1745	1096,649	cyclictest	0	-21	swapper	23:17:08	0
32419	99	1737	940,760	cyclictest	3941	-21	ssh	21:35:39	0
32419	99	1700	1074,626	cyclictest	0	-21	swapper	22:07:48	0
32419	99	1699	1094,605	cyclictest	0	-21	swapper	22:30:04	0
32419	99	1691	1100,500	cyclictest	32414	-21	cyclictest	19:23:20	0
32419	99	1691	1016,585	cyclictest	10	-21	rcuc/0	20:46:24	0
32419	99	1639	811,825	cyclictest	0	-21	swapper	23:01:23	0
32419	99	1604	1090,450	cyclictest	9	-21	ksoftirqd/0	19:59:21	0
32419	99	1578	972,572	cyclictest	39	50	irq/9-acpi	21:43:21	0
32419	99	1556	1025,531	cyclictest	0	-21	swapper	21:04:10	0
32419	99	1542	719,820	cyclictest	0	-21	swapper	21:07:10	0
32419	99	1522	750,762	cyclictest	0	-21	swapper	22:04:37	0
32419	99	1504	1097,407	cyclictest	0	-21	swapper	23:43:25	0
32419	99	1499	771,724	cyclictest	7000	-21	ssh	22:27:13	0
32419	99	1470	1099,371	cyclictest	0	-21	swapper	20:53:57	0
32419	99	1467	688,775	cyclictest	0	-21	swapper	00:08:33	0
32419	99	1460	1055,405	cyclictest	0	-21	swapper	19:53:29	0
32419	99	1456	1094,362	cyclictest	0	-21	swapper	00:25:48	0
32419	99	1423	1020,403	cyclictest	0	-21	swapper	23:46:26	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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