OSADL QA Farm on Real-time of Mainline Linux

About - Hardware - CPUs - Benchmarks - Graphics - Benchmarks - Kernels - Boards/Distros - Latency monitoring - Latency plots - System data - Profiles - Compare - Awards

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 Sat Apr 27, 2024 00:43:31)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
3931217	2	42	6,31	sleep7	0	-21	swapper/7	19:08:17	7
3931572	99	39	36,3	cyclictest	3964337	-21	kworker/u16:0+flush-8:0	20:14:27	6
3931567	99	36	34,2	cyclictest	142705	-21	kworker/u16:1+flush-8:0	23:34:00	4
3930965	2	36	25,8	sleep4	0	-21	swapper/4	19:04:45	4
3931567	99	34	32,2	cyclictest	863851	-21	kworker/u16:1+flush-8:0	19:28:33	4
3931569	99	33	29,3	cyclictest	4111505	-21	latency_hist	20:38:37	5
3931567	99	33	31,2	cyclictest	4159423	-21	kworker/u16:1+flush-8:0	21:49:06	4
3931567	99	32	30,2	cyclictest	298902	-21	kworker/u16:5+flush-8:0	00:13:49	4
3931567	99	32	30,2	cyclictest	172573	-21	kworker/u16:2+events_unbound	22:54:02	4
3931567	99	32	30,2	cyclictest	142705	-21	kworker/u16:1+flush-8:0	23:03:51	4
3931131	2	32	22,7	sleep6	0	-21	swapper/6	19:07:04	6
3931567	99	30	28,2	cyclictest	4000610	-21	kworker/u16:4+flush-8:0	19:59:06	4
3931567	99	30	28,2	cyclictest	280098	-21	kworker/u16:0+flush-8:0	00:04:03	4
3931567	99	30	26,3	cyclictest	367632	-21	latency_hist	00:28:36	4
3931567	99	28	26,2	cyclictest	4190973	-21	kworker/u16:2+events_unbound	21:23:47	4
3931567	99	28	26,2	cyclictest	3964337	-21	kworker/u16:0+events_unbound	22:00:26	4
3931567	99	28	26,2	cyclictest	172573	-21	kworker/u16:2+flush-8:0	23:48:32	4
3931567	99	28	26,2	cyclictest	172573	-21	kworker/u16:2+flush-8:0	22:48:50	4
3931215	2	28	18,7	sleep5	0	-21	swapper/5	19:08:15	5
3931567	99	27	25,2	cyclictest	3964337	-21	kworker/u16:0+events_unbound	21:34:08	4
3931567	99	27	25,2	cyclictest	280098	-21	kworker/u16:0+flush-8:0	23:58:32	4
3931567	99	27	25,2	cyclictest	172573	-21	kworker/u16:2+events_unbound	23:23:52	4
3931567	99	26	24,2	cyclictest	4000610	-21	kworker/u16:4+events_unbound	19:53:51	4
3931567	99	26	24,2	cyclictest	3964337	-21	kworker/u16:0+flush-8:0	22:34:10	4
3931567	99	26	24,2	cyclictest	280098	-21	kworker/u16:0+events_unbound	00:18:55	4
3931567	99	26	24,2	cyclictest	142705	-21	kworker/u16:1+events_unbound	23:19:11	4
3931567	99	26	24,2	cyclictest	113878	-21	kworker/u16:3+flush-8:0	22:59:07	4
3931567	99	26	24,2	cyclictest	113878	-21	kworker/u16:3+events_unbound	23:49:07	4
3931567	99	26	23,2	cyclictest	75200	-21	kworker/u16:4+events_unbound	22:08:56	4
3931567	99	26	23,2	cyclictest	3964337	-21	kworker/u16:0+events_unbound	19:28:54	4
3931577	99	25	24,0	cyclictest	0	-21	swapper/7	19:13:38	7
3931567	99	24	22,2	cyclictest	329250	-21	kworker/u16:3+events_unbound	00:09:07	4
3931567	99	23	21,2	cyclictest	4092804	-21	kworker/u16:4+flush-8:0	20:33:32	4
3931567	99	23	21,2	cyclictest	3974287	-21	kworker/u16:2+events_unbound	19:33:49	4
3931567	99	23	21,2	cyclictest	329250	-21	kworker/u16:3+flush-8:0	00:31:44	4
3931567	99	23	21,2	cyclictest	104133	-21	kworker/u16:2+flush-8:0	22:18:47	4
3931572	99	22	14,8	cyclictest	0	-21	swapper/6	23:25:59	6
3931567	99	22	20,2	cyclictest	863851	-21	kworker/u16:1+flush-8:0	19:09:05	4
3931567	99	22	20,2	cyclictest	4159423	-21	kworker/u16:1+flush-8:0	21:39:02	4
3931567	99	22	20,2	cyclictest	4090990	-21	kworker/u16:2+events_unbound	20:33:57	4
3931567	99	22	20,2	cyclictest	4063443	-21	kworker/u16:5+flush-8:0	21:03:47	4
3931567	99	22	20,2	cyclictest	4042670	-21	kworker/u16:3+flush-8:0	20:18:53	4
3931567	99	22	19,2	cyclictest	4042651	-21	kworker/u16:2+events_unbound	20:08:52	4
3931577	99	21	20,0	cyclictest	0	-21	swapper/7	19:48:50	7
3931572	99	21	18,3	cyclictest	75200	-21	kworker/u16:4+flush-8:0	22:09:04	6
3931567	99	21	19,2	cyclictest	863851	-21	kworker/u16:1+events_unbound	19:38:58	4
3931567	99	21	19,2	cyclictest	4092804	-21	kworker/u16:4+flush-8:0	21:13:32	4
3931567	99	21	19,2	cyclictest	4092804	-21	kworker/u16:4+flush-8:0	21:13:32	4
3931567	99	21	19,2	cyclictest	4092804	-21	kworker/u16:4+flush-8:0	20:49:07	4
3931567	99	21	19,2	cyclictest	4063443	-21	kworker/u16:5+flush-8:0	20:44:09	4
3931577	99	20	18,1	cyclictest	0	-21	swapper/7	00:28:36	7
3931567	99	20	18,2	cyclictest	172573	-21	kworker/u16:2+flush-8:0	23:08:38	4
3931567	99	20	18,2	cyclictest	172573	-21	kworker/u16:2+events_unbound	23:39:07	4
3931577	99	19	18,0	cyclictest	0	-21	swapper/7	22:23:54	7
3931577	99	19	17,1	cyclictest	0	-21	swapper/7	20:39:02	7
3931577	99	19	17,1	cyclictest	0	-21	swapper/7	00:09:05	7
3931569	99	19	0,14	cyclictest	0	-21	swapper/5	23:49:21	5
3931567	99	19	17,2	cyclictest	4000610	-21	kworker/u16:4+events_unbound	20:03:55	4
3931567	99	19	17,2	cyclictest	3964337	-21	kworker/u16:0+flush-8:0	22:15:42	4
3931567	99	19	17,2	cyclictest	113878	-21	kworker/u16:3+events_unbound	22:29:01	4
3931569	99	18	15,2	cyclictest	4063443	-21	kworker/u16:5+flush-8:0	21:09:08	5
3931569	99	18	15,2	cyclictest	4063443	-21	kworker/u16:5+flush-8:0	21:09:08	5
3931567	99	18	9,8	cyclictest	0	-21	swapper/4	19:16:22	4
3931567	99	18	16,2	cyclictest	4159423	-21	kworker/u16:1+flush-8:0	22:23:57	4
3931567	99	18	16,2	cyclictest	4159423	-21	kworker/u16:1+flush-8:0	21:21:17	4
3931567	99	18	16,2	cyclictest	4063443	-21	kworker/u16:5+flush-8:0	21:32:54	4
3931567	99	18	16,2	cyclictest	4063443	-21	kworker/u16:5+flush-8:0	21:17:32	4
3931567	99	18	16,2	cyclictest	4063443	-21	kworker/u16:5+events_unbound	20:38:54	4
3931567	99	18	16,2	cyclictest	3964337	-21	kworker/u16:0+flush-8:0	20:14:28	4
3931567	99	18	16,2	cyclictest	172573	-21	kworker/u16:2+flush-8:0	23:18:22	4
3931577	99	17	16,0	cyclictest	0	-21	swapper/7	19:13:42	7
3931577	99	17	15,1	cyclictest	0	-21	swapper/7	20:54:08	7
3931577	99	17	0,9	cyclictest	0	-21	swapper/7	22:46:16	7
3931572	99	17	15,2	cyclictest	4092804	-21	kworker/u16:4+events_unbound	20:59:39	6
3931572	99	17	14,2	cyclictest	4042670	-21	kworker/u16:3+flush-8:0	20:19:08	6
3931572	99	17	14,2	cyclictest	3964337	-21	kworker/u16:0+events_unbound	22:33:51	6
3931567	99	17	15,2	cyclictest	3984544	-21	kworker/u16:3+flush-8:0	19:43:58	4
3931567	99	17	15,2	cyclictest	377340	-21	kworker/u16:4+events_unbound	00:34:00	4
3931567	99	17	15,2	cyclictest	309397	-21	kworker/u16:1+events_unbound	23:58:55	4
3931567	99	17	15,2	cyclictest	1159923	-21	kworker/u16:3+events_unbound	19:18:50	4
3931577	99	16	15,0	cyclictest	0	-21	swapper/7	23:38:55	7
3931577	99	16	15,0	cyclictest	0	-21	swapper/7	00:14:01	7
3931572	99	16	13,2	cyclictest	3974287	-21	kworker/u16:2+events_unbound	19:39:10	6
3931569	99	16	2,5	cyclictest	0	-21	swapper/5	19:36:37	5
3931569	99	16	14,2	cyclictest	172573	-21	kworker/u16:2+flush-8:0	22:48:54	5
3931569	99	16	13,2	cyclictest	4000610	-21	kworker/u16:4+flush-8:0	20:14:03	5
3931567	99	16	14,2	cyclictest	4090990	-21	kworker/u16:2+flush-8:0	20:58:59	4
3931567	99	16	14,2	cyclictest	152969	-21	kworker/u16:5+flush-8:0	22:45:46	4
3931577	99	15	3,5	cyclictest	0	-21	swapper/7	23:18:17	7
3931577	99	15	2,5	cyclictest	0	-21	swapper/7	20:03:17	7
3931577	99	15	1,6	cyclictest	0	-21	swapper/7	23:45:14	7
3931577	99	15	14,0	cyclictest	0	-21	swapper/7	22:19:09	7
3931577	99	15	14,0	cyclictest	0	-21	swapper/7	20:49:06	7
3931577	99	15	13,1	cyclictest	0	-21	swapper/7	22:38:59	7
3931577	99	15	0,7	cyclictest	0	-21	swapper/7	21:53:56	7
3931577	99	15	0,1	cyclictest	0	-21	swapper/7	19:39:04	7
3931577	99	15	0,14	cyclictest	0	-21	swapper/7	23:04:00	7
3931572	99	15	7,7	cyclictest	0	-21	swapper/6	21:38:53	6
3931572	99	15	13,2	cyclictest	280098	-21	kworker/u16:0+events_unbound	23:53:50	6
3931569	99	15	12,2	cyclictest	1135	-21	snmpd	20:48:30	5
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


Access: public		Short link to this page
This page was last modified on 2019-05-28 - 00:17