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Default latency plot of system in rack #0, slot #2

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 rack0slot2.osadl.org (updated Tue Jul 07, 2026 00:43:33)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
2689757	2	55	0,0	sleep7	2689758	-21	rm	00:02:52	7
1995687	99	54	48,5	cyclictest	2266169	-21	latency_hist	21:19:59	7
1994890	2	52	18,29	sleep7	0	-21	swapper/7	19:07:25	7
1994572	2	50	40,7	sleep5	0	-21	swapper/5	19:05:46	5
1994622	2	47	36,8	sleep4	0	-21	swapper/4	19:06:01	4
1994654	2	36	25,8	sleep6	0	-21	swapper/6	19:06:12	6
1995687	99	33	32,0	cyclictest	0	-21	swapper/7	20:45:27	7
1995687	99	29	28,0	cyclictest	0	-21	swapper/7	22:00:14	7
1995687	99	29	23,5	cyclictest	2768343	-21	latency_hist	00:34:59	7
1995687	99	28	23,4	cyclictest	648	-21	systemd-journal	19:49:59	7
1995684	99	28	26,2	cyclictest	2626681	-21	kworker/u16:3+events_unbound	23:50:12	6
1995682	99	28	26,2	cyclictest	2704197	-21	kworker/u16:3+events_unbound	00:13:19	5
1995682	99	28	26,2	cyclictest	2704197	-21	kworker/u16:3+events_unbound	00:13:19	5
1995687	99	27	25,1	cyclictest	2495595	-21	ssh	22:46:35	7
1995682	99	27	25,2	cyclictest	2702698	-21	kworker/u16:2+events_unbound	00:08:32	5
1995677	99	27	25,2	cyclictest	2678284	-21	kworker/u16:1+events_unbound	00:33:07	4
1995677	99	27	25,2	cyclictest	2626681	-21	kworker/u16:3+events_unbound	23:59:27	4
1995677	99	27	25,2	cyclictest	2317694	-21	kworker/u16:3+events_unbound	22:25:52	4
1995687	99	26	24,1	cyclictest	2291698	-21	ssh	21:29:39	7
1995687	99	26	24,1	cyclictest	0	-21	swapper/7	22:23:47	7
1995684	99	26	24,2	cyclictest	2197332	-21	kworker/u16:1+events_unbound	21:45:13	6
1995684	99	26	22,3	cyclictest	2743036	-21	kworker/u16:0+events_unbound	00:30:19	6
1995677	99	26	24,2	cyclictest	2678284	-21	kworker/u16:1+flush-8:0	00:24:28	4
1995677	99	26	24,2	cyclictest	2610801	-21	kworker/u16:0+events_unbound	23:35:36	4
1995677	99	26	24,2	cyclictest	2482093	-21	kworker/u16:2+events_unbound	23:02:44	4
1995677	99	26	24,2	cyclictest	2317694	-21	kworker/u16:3+events_unbound	22:54:04	4
1995677	99	26	24,2	cyclictest	2301809	-21	kworker/u16:0+events_unbound	21:40:39	4
1995687	99	25	22,1	cyclictest	2666576	-21	ssh	23:55:14	7
1995684	99	25	24,1	cyclictest	2197332	-21	kworker/u16:1+flush-8:0	21:54:59	6
1995684	99	25	23,2	cyclictest	2113984	-21	kworker/u16:3+flush-8:0	20:25:00	6
1995682	99	25	23,2	cyclictest	2678679	-21	kworker/u16:4+events_unbound	00:15:59	5
1995682	99	25	23,2	cyclictest	2610801	-21	kworker/u16:0+flush-8:0	23:45:04	5
1995682	99	25	23,2	cyclictest	2011234	-21	kworker/u16:5+events_unbound	21:20:37	5
1995677	99	25	23,2	cyclictest	2678284	-21	kworker/u16:1+events_unbound	00:03:56	4
1995687	99	24	21,2	cyclictest	2240460	-21	diskmemload	00:23:50	7
1995684	99	24	21,2	cyclictest	2559351	-21	kworker/u16:1+events_unbound	23:25:28	6
1995684	99	24	20,3	cyclictest	2317694	-21	kworker/u16:3+flush-8:0	22:25:04	6
1995682	99	24	22,2	cyclictest	2317694	-21	kworker/u16:3+flush-8:0	22:45:08	5
1995682	99	24	22,2	cyclictest	2279147	-21	kworker/u16:2+events_unbound	21:30:10	5
1995677	99	24	22,2	cyclictest	2704197	-21	kworker/u16:3+events_unbound	00:12:07	4
1995677	99	24	22,2	cyclictest	2704197	-21	kworker/u16:3+events_unbound	00:12:07	4
1995677	99	24	22,2	cyclictest	2678679	-21	kworker/u16:4+events_unbound	00:19:05	4
1995677	99	24	22,2	cyclictest	2317694	-21	kworker/u16:3+events_unbound	22:55:52	4
1995687	99	23	22,0	cyclictest	0	-21	swapper/7	21:45:27	7
1995687	99	23	22,0	cyclictest	0	-21	swapper/7	21:38:28	7
1995687	99	23	21,1	cyclictest	2612890	-21	ssh	23:33:39	7
1995682	99	23	21,2	cyclictest	2626681	-21	kworker/u16:3+flush-8:0	23:55:52	5
1995682	99	23	21,2	cyclictest	2106226	-21	kworker/u16:0+events_unbound	20:13:47	5
1995682	99	23	21,2	cyclictest	2042442	-21	kworker/u16:0+events_unbound	19:49:51	5
1995682	99	23	21,2	cyclictest	2011234	-21	kworker/u16:5+events_unbound	20:54:30	5
1995682	99	23	20,2	cyclictest	1994613	-21	kworker/u16:1+events_unbound	19:10:03	5
1995677	99	23	21,2	cyclictest	2743036	-21	kworker/u16:0+events_unbound	00:26:17	4
1995677	99	23	21,2	cyclictest	2702698	-21	kworker/u16:2+events_unbound	00:08:12	4
1995677	99	23	21,2	cyclictest	2317694	-21	kworker/u16:3+events_unbound	22:46:50	4
1995677	99	23	21,2	cyclictest	2301809	-21	kworker/u16:0+events_unbound	21:59:54	4
1995677	99	23	21,2	cyclictest	2197332	-21	kworker/u16:1+flush-8:0	21:49:59	4
1995677	99	23	21,2	cyclictest	2197332	-21	kworker/u16:1+events_unbound	21:20:49	4
1995677	99	23	21,2	cyclictest	2028165	-21	kworker/u16:1+events_unbound	19:55:21	4
1995677	99	23	21,2	cyclictest	2028165	-21	kworker/u16:1+events_unbound	19:55:21	4
1995687	99	22	20,1	cyclictest	2521116	-21	sh	22:56:15	7
1995687	99	22	20,1	cyclictest	2369035	-21	ssh	21:59:43	7
1995687	99	22	19,2	cyclictest	2249636	-21	ssh	21:10:24	7
1995687	99	22	19,2	cyclictest	2187056	-21	lockdev	20:40:26	7
1995684	99	22	19,2	cyclictest	2678284	-21	kworker/u16:1+flush-8:0	00:20:14	6
1995684	99	22	18,3	cyclictest	2011234	-21	kworker/u16:5+flush-8:0	21:10:17	6
1995682	99	22	20,2	cyclictest	2704197	-21	kworker/u16:3+flush-8:0	00:24:53	5
1995682	99	22	20,2	cyclictest	2678284	-21	kworker/u16:1+flush-8:0	00:32:14	5
1995682	99	22	20,2	cyclictest	2678284	-21	kworker/u16:1+flush-8:0	00:01:00	5
1995682	99	22	20,2	cyclictest	2610801	-21	kworker/u16:0+flush-8:0	23:44:59	5
1995682	99	22	20,2	cyclictest	2317694	-21	kworker/u16:3+events_unbound	22:20:39	5
1995682	99	22	20,2	cyclictest	2279147	-21	kworker/u16:2+flush-8:0	21:39:54	5
1995682	99	22	20,2	cyclictest	2028165	-21	kworker/u16:1+events_unbound	20:05:00	5
1995682	99	22	20,2	cyclictest	2028165	-21	kworker/u16:1+events_unbound	20:04:32	5
1995682	99	22	20,2	cyclictest	2011234	-21	kworker/u16:5+events_unbound	20:44:24	5
1995682	99	22	20,2	cyclictest	2011234	-21	kworker/u16:5+events_unbound	20:17:52	5
1995682	99	22	20,2	cyclictest	2011234	-21	kworker/u16:5+events_unbound	19:42:51	5
1995682	99	22	19,2	cyclictest	2317694	-21	kworker/u16:3+events_unbound	22:50:00	5
1995677	99	22	20,2	cyclictest	2743036	-21	kworker/u16:0+flush-8:0	00:37:16	4
1995677	99	22	20,2	cyclictest	2197332	-21	kworker/u16:1+events_unbound	20:59:55	4
1995677	99	22	20,2	cyclictest	2113984	-21	kworker/u16:3+events_unbound	20:37:28	4
1995677	99	22	20,2	cyclictest	2053229	-21	kworker/u16:2+events_unbound	19:48:52	4
1995677	99	22	20,2	cyclictest	2028165	-21	kworker/u16:1+events_unbound	19:37:40	4
1995677	99	22	20,2	cyclictest	2011234	-21	kworker/u16:5+events_unbound	20:43:30	4
1995677	99	22	20,2	cyclictest	2011234	-21	kworker/u16:5+events_unbound	20:32:56	4
1995677	99	22	20,2	cyclictest	2002337	-21	kworker/u16:4+events_unbound	19:33:20	4
1995677	99	22	19,2	cyclictest	2559351	-21	kworker/u16:1+flush-8:0	23:25:04	4
1995677	99	22	19,2	cyclictest	2279147	-21	kworker/u16:2+events_unbound	21:35:13	4
1995687	99	21	20,0	cyclictest	0	-21	swapper/7	22:44:38	7
1995687	99	21	20,0	cyclictest	0	-21	swapper/7	22:12:19	7
1995684	99	21	18,3	cyclictest	2317694	-21	kworker/u16:3+flush-8:0	22:30:24	6
1995684	99	21	17,3	cyclictest	2279147	-21	kworker/u16:2+flush-8:0	21:25:24	6
1995682	99	21	19,2	cyclictest	2768383	-21	kworker/u16:2+flush-8:0	00:35:04	5
1995682	99	21	19,2	cyclictest	2678284	-21	kworker/u16:1+events_unbound	00:26:48	5
1995682	99	21	19,2	cyclictest	2317694	-21	kworker/u16:3+events_unbound	22:26:00	5
1995682	99	21	19,2	cyclictest	2230039	-21	kworker/u16:4+events_unbound	21:25:46	5
1995682	99	21	19,2	cyclictest	2197332	-21	kworker/u16:1+events_unbound	20:56:39	5
1995682	99	21	19,2	cyclictest	2113984	-21	kworker/u16:3+events_unbound	21:07:51	5
1995682	99	21	19,2	cyclictest	2053229	-21	kworker/u16:2+events_unbound	20:26:43	5
1995682	99	21	19,2	cyclictest	2011234	-21	kworker/u16:5+events_unbound	19:58:52	5
1995682	99	21	19,2	cyclictest	2011234	-21	kworker/u16:5+events_unbound	19:58:52	5
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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