OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #c, slot #3

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
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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 rackcslot3s.osadl.org (updated Thu Apr 25, 2024 00:50:17)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
2380	2	660	642,12	sleep5	0	-21	swapper/5	19:05:06	5
4182	2	503	479,18	sleep1	0	-21	swapper/1	19:07:02	1
4297	2	486	465,15	sleep2	0	-21	swapper/2	19:08:40	2
4373	2	481	460,14	sleep4	0	-21	swapper/4	19:09:46	4
4266	2	479	456,15	sleep0	0	-21	swapper/0	19:08:14	0
4122	2	471	451,14	sleep7	0	-21	swapper/7	19:06:12	7
3092	2	390	374,9	sleep3	0	-21	swapper/3	19:05:28	3
4346	2	360	339,14	sleep6	0	-21	swapper/6	19:09:24	6
4831	99	86	84,1	cyclictest	22320	-21	sh	22:10:00	3
4830	99	79	76,1	cyclictest	20959	-21	head	23:10:23	2
4831	99	64	62,1	cyclictest	20493	-21	tr	19:50:16	3
4834	99	62	61,0	cyclictest	7253	-21	tr	20:30:22	6
4832	99	57	48,8	cyclictest	21440	-21	grep	00:20:13	4
4834	99	56	54,1	cyclictest	30032	-21	tr	20:10:16	6
4832	99	56	54,1	cyclictest	7688	-21	tr	22:45:12	4
4833	99	49	47,1	cyclictest	19622	-21	apt	23:10:00	5
4833	99	49	47,1	cyclictest	19622	-21	apt	23:10:00	5
4828	99	49	32,0	cyclictest	27987	-21	cpuspeed_turbos	22:20:11	0
4833	99	48	47,0	cyclictest	3930	-21	sh	23:45:00	5
4831	99	48	17,30	cyclictest	16982	-21	grep	20:50:13	3
4828	99	48	46,1	cyclictest	5247	-21	tr	22:40:14	0
4830	99	47	45,1	cyclictest	441	-21	head	23:35:27	2
4830	99	46	44,1	cyclictest	4838	-21	tr	20:25:14	2
4828	99	46	45,0	cyclictest	9824	-21	timerandwakeup	21:40:37	0
4833	99	45	44,0	cyclictest	12708	-21	tr	22:55:12	5
4833	99	45	43,1	cyclictest	5308	-21	tr	22:40:14	5
4832	99	45	36,8	cyclictest	20538	-21	cpuspeed_turbos	22:05:15	4
4834	99	44	42,1	cyclictest	27413	-21	cpuspeed_turbos	23:25:11	6
4834	99	44	42,1	cyclictest	20500	-21	tr	19:50:17	6
4833	99	44	43,0	cyclictest	16610	-21	cut	00:10:16	5
4831	99	44	43,0	cyclictest	11060	-21	grep	21:45:16	3
4835	99	43	41,1	cyclictest	8009	-21	sh	21:40:00	7
4834	99	43	41,1	cyclictest	0	-21	swapper/6	22:50:13	6
4834	99	43	0,17	cyclictest	13416	-21	cpuspeed_turbos	21:50:13	6
4835	99	42	40,1	cyclictest	24101	-21	cut	21:05:16	7
4834	99	42	40,1	cyclictest	15519	-21	grep	19:40:10	6
4833	99	42	18,1	cyclictest	10215	-21	tr	22:50:13	5
4832	99	42	40,1	cyclictest	14576	-21	grep	20:45:14	4
4828	99	42	40,1	cyclictest	29831	-21	cpuspeed_turbos	23:30:12	0
4828	99	42	40,1	cyclictest	18577	-21	needreboot	23:05:24	0
4828	99	42	40,1	cyclictest	18577	-21	needreboot	23:05:24	0
4829	99	41	39,1	cyclictest	5249	-21	cpuspeed_turbos	22:40:14	1
4829	99	41	39,1	cyclictest	11769	-21	cpuspeed_turbos	00:00:15	1
4835	99	40	4,15	cyclictest	0	-21	swapper/7	00:05:21	7
4834	99	40	38,1	cyclictest	18110	-21	cpuspeed_turbos	19:45:14	6
4834	99	40	12,1	cyclictest	280	-21	systemd-journal	21:50:00	6
4833	99	40	0,39	cyclictest	0	-21	swapper/5	20:30:35	5
4832	99	40	16,22	cyclictest	9557	-21	cpuspeed_turbos	20:35:14	4
4830	99	40	38,1	cyclictest	27638	-21	cpuspeed_turbos	20:05:16	2
4829	99	40	38,1	cyclictest	19896	-21	idleruntime-cro	19:50:00	1
4828	99	40	38,1	cyclictest	0	-21	swapper/0	22:50:13	0
4834	99	39	37,1	cyclictest	24849	-21	head	21:05:32	6
4834	99	39	0,37	cyclictest	2687	-21	cpuspeed_turbos	22:35:12	6
4834	99	39	0,1	cyclictest	27690	-21	grep	20:05:16	6
4833	99	39	37,1	cyclictest	18237	-21	grep	22:00:12	5
4833	99	39	37,1	cyclictest	17060	-21	latency_hist	23:05:00	5
4831	99	39	37,1	cyclictest	0	-21	swapper/3	22:20:32	3
4830	99	39	37,1	cyclictest	0	-21	swapper/2	23:05:11	2
4830	99	39	37,1	cyclictest	0	-21	swapper/2	23:05:11	2
4829	99	39	15,15	cyclictest	0	-21	swapper/1	23:13:59	1
4828	99	39	0,38	cyclictest	0	-21	swapper/0	23:10:28	0
4828	99	39	0,1	cyclictest	24993	-21	cpuspeed_turbos	23:20:12	0
4835	99	38	36,1	cyclictest	23626	-21	cut	19:55:32	7
4834	99	38	0,37	cyclictest	0	-21	swapper/6	21:40:14	6
4833	99	38	4,19	cyclictest	0	-21	swapper/5	19:50:43	5
4833	99	38	36,1	cyclictest	24154	-21	cpuspeed_turbos	21:05:16	5
4832	99	38	36,1	cyclictest	0	-21	swapper/4	19:40:31	4
4832	99	38	35,2	cyclictest	17879	-21	tr	23:05:12	4
4832	99	38	35,2	cyclictest	17879	-21	tr	23:05:12	4
4831	99	38	14,0	cyclictest	21411	-21	tr	00:20:13	3
4831	99	38	0,37	cyclictest	0	-21	swapper/3	23:40:12	3
4830	99	38	36,1	cyclictest	7290	-21	latency_hist	22:45:00	2
4828	99	38	0,1	cyclictest	0	-21	swapper/0	00:05:14	0
4834	99	37	35,1	cyclictest	13969	-21	cron	19:35:00	6
4833	99	37	34,2	cyclictest	1765	-21	sh	20:20:00	5
4832	99	37	35,1	cyclictest	30927	-21	wc	22:25:27	4
4832	99	37	35,1	cyclictest	10484	-21	timerandwakeup	23:55:33	4
4831	99	37	36,1	cyclictest	0	-21	swapper/3	20:10:31	3
4831	99	37	36,0	cyclictest	19657	-21	latency_hist	23:10:00	3
4831	99	37	36,0	cyclictest	19657	-21	latency_hist	23:10:00	3
4831	99	37	35,1	cyclictest	4843	-21	tr	20:25:14	3
4831	99	37	20,8	cyclictest	0	-21	swapper/3	00:10:40	3
4830	99	37	35,1	cyclictest	9360	-21	cpuspeed_turbos	23:55:12	2
4830	99	37	35,1	cyclictest	6547	-21	cat	23:50:01	2
4830	99	37	13,22	cyclictest	7741	-21	grep	22:45:12	2
4830	99	37	0,36	cyclictest	0	-21	swapper/2	23:30:13	2
4829	99	37	11,14	cyclictest	0	-21	swapper/1	22:08:51	1
4828	99	37	35,1	cyclictest	28889	-21	grep	21:15:15	0
4835	99	36	34,1	cyclictest	32750	-21	cpuspeed_turbos	22:30:15	7
4835	99	36	34,1	cyclictest	32127	-21	tr	23:35:12	7
4835	99	36	34,1	cyclictest	14004	-21	cat	19:35:00	7
4835	99	36	34,1	cyclictest	0	-21	swapper/7	20:55:25	7
4835	99	36	34,1	cyclictest	0	-21	swapper/7	19:20:34	7
4835	99	36	34,1	cyclictest	0	-21	swapper/7	00:10:32	7
4834	99	36	34,1	cyclictest	7592	-21	missed_timers	23:50:26	6
4834	99	36	34,1	cyclictest	30385	-21	cpuspeed_turbos	22:25:15	6
4834	99	36	34,1	cyclictest	0	-21	swapper/6	00:15:33	6
4833	99	36	35,0	cyclictest	1466	-21	tr	21:25:13	5
4832	99	36	34,1	cyclictest	31344	-21	grep	20:10:48	4
4830	99	36	34,1	cyclictest	30313	-21	tr	22:25:15	2
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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