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 shadow in rack #0, slot #6

Rack #0/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #1/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #2/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #3/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #4/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #5/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #6/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #7/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #8/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #9/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #a/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #b/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #c/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #d/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #e/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #f/#0 #1 #2 #3 #4 #5 #6 #7 #8
Special All - All RT - Optimization - Ethernet - Thumbnails - Next

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 rack0slot6s.osadl.org (updated Sun Jan 11, 2026 00:46:09)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
3034533	2	189	173,10	sleep4	0	-21	swapper/4	19:06:38	14
3034848	2	48	43,3	sleep7	0	-21	swapper/7	19:09:21	17
3034701	2	48	43,3	sleep14	0	-21	swapper/14	19:08:08	6
3034693	2	47	41,3	sleep6	0	-21	swapper/6	19:08:00	16
1756	98	46	0,43	rtkit-daemon	0	-21	swapper/17	19:05:46	9
3035408	99	45	0,1	cyclictest	3118063	-40	tracker-miner-f	20:45:11	10
3035402	99	45	0,33	cyclictest	0	-21	swapper/16	19:12:44	8
3034714	2	44	41,2	sleep16	0	-21	swapper/16	19:08:10	8
4448	20	43	0,39	data-loop.0	0	-21	swapper/13	19:05:32	5
3035408	99	43	0,42	cyclictest	0	-21	swapper/18	22:55:43	10
3035408	99	43	0,42	cyclictest	0	-21	swapper/18	19:30:17	10
3035408	99	43	0,33	cyclictest	0	-21	swapper/18	21:45:19	10
3035408	99	43	0,33	cyclictest	0	-21	swapper/18	21:45:19	10
3035396	99	43	40,2	cyclictest	0	-21	swapper/14	20:45:11	6
3035396	99	43	2,41	cyclictest	0	-21	swapper/14	23:15:17	6
1948	99	43	0,15	ntpd	0	-21	swapper/2	19:08:09	12
4442	20	42	0,40	data-loop.0	0	-21	swapper/11	19:05:32	3
3035408	99	42	0,1	cyclictest	326418	-21	CPU		10
3035396	99	42	36,5	cyclictest	0	-21	swapper/14	19:25:15	6
3035408	99	41	0,40	cyclictest	0	-21	swapper/18	23:55:16	10
3035402	99	41	0,1	cyclictest	3286601	-40	tracker-miner-f	23:55:42	8
3035396	99	41	37,4	cyclictest	0	-21	swapper/14	21:45:18	6
3035396	99	41	37,4	cyclictest	0	-21	swapper/14	21:45:18	6
3035408	99	40	34,3	cyclictest	0	-21	swapper/18	20:12:38	10
3035408	99	40	32,7	cyclictest	0	-21	swapper/18	00:12:18	10
3035402	99	40	32,8	cyclictest	0	-21	swapper/16	00:04:02	8
3035402	99	40	30,9	cyclictest	0	-21	swapper/16	21:51:26	8
3035396	99	40	37,3	cyclictest	0	-21	swapper/14	21:15:18	6
3035381	99	40	40,0	cyclictest	0	-21	swapper/9	22:08:06	19
3035378	99	40	32,8	cyclictest	0	-21	swapper/8	23:04:02	18
3035370	99	40	32,7	cyclictest	0	-21	swapper/5	22:17:00	15
3034844	2	40	35,3	sleep5	0	-21	swapper/5	19:09:19	15
3034838	2	40	35,3	sleep1	0	-21	swapper/1	19:09:15	1
3035402	99	39	33,5	cyclictest	0	-21	swapper/16	23:01:02	8
3035402	99	39	29,10	cyclictest	3280581	-40	tracker-miner-f	23:50:19	8
3035396	99	39	34,4	cyclictest	0	-21	swapper/14	21:56:40	6
3035396	99	39	1,38	cyclictest	0	-21	swapper/14	20:27:56	6
3035396	99	39	1,38	cyclictest	0	-21	swapper/14	00:03:11	6
3035389	99	39	31,7	cyclictest	3039416	-40	tracker-miner-f	19:15:00	4
3035389	99	39	29,9	cyclictest	0	-21	swapper/12	20:27:54	4
3035389	99	39	0,33	cyclictest	0	-21	swapper/12	23:57:11	4
3035378	99	39	32,6	cyclictest	0	-21	swapper/8	20:55:56	18
3035378	99	39	31,7	cyclictest	0	-21	swapper/8	22:08:00	18
3035378	99	39	30,9	cyclictest	0	-21	swapper/8	22:17:00	18
3035370	99	39	33,5	cyclictest	2004	-21	nessusd	21:19:15	15
3035370	99	39	32,6	cyclictest	3214389	-40	tracker-miner-f	22:35:24	15
3035370	99	39	30,8	cyclictest	0	-21	swapper/5	00:39:35	15
3035370	99	39	27,11	cyclictest	0	-21	swapper/5	23:01:02	15
3035370	99	39	0,37	cyclictest	3130600	-21	StreamT~		15
3034422	2	39	34,3	sleep19	0	-21	swapper/19	19:05:32	11
3035408	99	38	31,7	cyclictest	0	-21	swapper/18	19:45:04	10
3035408	99	38	31,6	cyclictest	0	-21	swapper/18	20:50:51	10
3035402	99	38	31,6	cyclictest	3057421	-40	tracker-miner-f	19:32:32	8
3035402	99	38	28,9	cyclictest	3235121	-40	tracker-miner-f	22:59:36	8
3035399	99	38	0,37	cyclictest	3036680	-21	cstates	19:10:12	7
3035396	99	38	38,0	cyclictest	0	-21	swapper/14	22:29:15	6
3035396	99	38	35,2	cyclictest	0	-21	swapper/14	22:35:23	6
3035396	99	38	3,2	cyclictest	0	-21	swapper/14	21:39:58	6
3035396	99	38	3,2	cyclictest	0	-21	swapper/14	21:39:58	6
3035389	99	38	31,6	cyclictest	0	-21	swapper/12	20:18:04	4
3035378	99	38	33,5	cyclictest	0	-21	swapper/8	00:37:27	18
3035378	99	38	30,8	cyclictest	0	-21	swapper/8	21:19:15	18
3035370	99	38	31,6	cyclictest	3070231	-40	tracker-miner-f	19:46:13	15
3035370	99	38	0,36	cyclictest	0	-21	swapper/5	22:06:05	15
3035370	99	38	0,33	cyclictest	0	-21	swapper/5	00:00:18	15
3035357	99	38	0,1	cyclictest	0	-21	swapper/1	23:23:51	1
3274292	2	37	0,0	sleep2	0	-21	swapper/2	23:44:59	12
3035408	99	37	35,2	cyclictest	0	-21	swapper/18	00:01:41	10
3035408	99	37	33,4	cyclictest	0	-21	swapper/18	23:49:23	10
3035408	99	37	33,4	cyclictest	0	-21	swapper/18	21:09:56	10
3035408	99	37	32,5	cyclictest	0	-21	swapper/18	20:05:18	10
3035408	99	37	31,5	cyclictest	3109472	-21	StreamT~		10
3035408	99	37	30,7	cyclictest	0	-21	swapper/18	23:50:26	10
3035408	99	37	30,6	cyclictest	0	-21	swapper/18	00:15:14	10
3035408	99	37	28,8	cyclictest	0	-21	swapper/18	00:35:20	10
3035396	99	37	35,1	cyclictest	0	-21	swapper/14	19:15:17	6
3035392	99	37	0,36	cyclictest	3209215	-21	StreamT~		5
3035389	99	37	30,6	cyclictest	0	-21	swapper/12	19:55:20	4
3035389	99	37	27,9	cyclictest	3109441	-40	tracker-miner-f	20:35:14	4
3035381	99	37	35,1	cyclictest	326420	-21	CPU		19
3035381	99	37	35,1	cyclictest	326420	-21	CPU		19
3035381	99	37	35,1	cyclictest	326418	-21	CPU		19
3035381	99	37	32,4	cyclictest	326344	-21	qemu-system-x86	23:05:20	19
3035381	99	37	0,36	cyclictest	3256900	-40	tracker-miner-f	23:25:03	19
3035381	99	37	0,36	cyclictest	1366548	-21	TaskCon~ller		19
3035381	99	37	0,36	cyclictest	1366487	-21	thunderbird	22:21:41	19
3035381	99	37	0,36	cyclictest	1366487	-21	thunderbird	00:18:37	19
3035381	99	37	0,36	cyclictest	1366487	-21	thunderbird	00:11:19	19
3035381	99	37	0,36	cyclictest	0	-21	swapper/9	21:45:09	19
3035381	99	37	0,36	cyclictest	0	-21	swapper/9	21:45:09	19
3035381	99	37	0,36	cyclictest	0	-21	swapper/9	20:19:32	19
3035381	99	37	0,2	cyclictest	3178394	-40	tracker-miner-f	21:52:30	19
3035381	99	37	0,1	cyclictest	1366487	-21	thunderbird	21:35:47	19
3035381	99	37	0,1	cyclictest	1366487	-21	thunderbird	21:35:47	19
3035378	99	37	30,6	cyclictest	0	-21	swapper/8	19:57:35	18
3035378	99	37	27,10	cyclictest	0	-21	swapper/8	22:43:38	18
3035370	99	37	30,6	cyclictest	0	-21	swapper/5	22:54:06	15
3035370	99	37	30,5	cyclictest	3078985	-40	tracker-miner-f	19:57:35	15
3035370	99	37	28,8	cyclictest	0	-21	swapper/5	22:43:38	15
3035370	99	37	28,5	cyclictest	0	-21	swapper/5	23:55:42	15
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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