OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #8, slot #7

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
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x86 Intel Pentium G4400 @3300 MHz, Linux 4.19.37-rt19 (Profile)

Latency plot of shadow in rack #8, slot #7

Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Command line: cyclictest -l100000000 -m -Sp99 -i200 -h400 -q
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 highest latencies:

System rack8slot7s.osadl.org (updated Sat Aug 13, 2022 00:43:41)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
937	99	21	21,0	cyclictest	0	-21	swapper/1	21:10:57	1
936	99	21	21,0	cyclictest	0	-21	swapper/0	00:22:42	0
937	99	20	0,2	cyclictest	0	-21	swapper/1	22:15:21	1
936	99	19	17,1	cyclictest	12133	-21	perf	00:05:00	0
936	99	18	16,1	cyclictest	9948	-21	apt-get	22:30:16	0
937	99	17	0,7	cyclictest	0	-21	swapper/1	20:15:12	1
936	99	17	4,8	cyclictest	7594	-21	apt-get	20:55:12	0
936	99	17	2,6	cyclictest	29529	-21	apt-get	21:55:15	0
936	99	17	15,1	cyclictest	7078	-21	apt-get	19:25:14	0
936	99	17	15,1	cyclictest	6292	-21	apt-get	22:20:13	0
936	99	17	15,1	cyclictest	28221	-21	apt-get	23:20:14	0
936	99	17	15,1	cyclictest	12559	-21	apt-get	19:40:13	0
936	99	17	0,9	cyclictest	3151	-21	apt-get	23:40:12	0
937	99	16	3,6	cyclictest	0	-21	swapper/1	23:40:13	1
937	99	16	1,5	cyclictest	0	-21	swapper/1	19:40:14	1
937	99	16	0,15	cyclictest	0	-21	swapper/1	19:20:22	1
937	99	16	0,0	cyclictest	0	-21	swapper/1	19:38:11	1
936	99	16	4,7	cyclictest	19874	-21	apt-get	20:00:18	0
936	99	16	3,8	cyclictest	10	1	ktimersoftd/0	20:30:19	0
936	99	16	16,0	cyclictest	12914	-21	diskmemload	22:44:32	0
936	99	16	1,14	cyclictest	12914	-21	diskmemload	23:02:15	0
936	99	16	10,5	cyclictest	10	1	ktimersoftd/0	23:10:14	0
936	99	16	0,15	cyclictest	23329	-21	meminfo	23:05:20	0
936	99	16	0,0	cyclictest	12914	-21	diskmemload	21:49:24	0
937	99	15	2,5	cyclictest	0	-21	swapper/1	23:50:11	1
937	99	15	15,0	cyclictest	0	-21	swapper/1	22:55:40	1
937	99	15	0,7	cyclictest	0	-21	swapper/1	22:35:13	1
937	99	15	0,5	cyclictest	0	-21	swapper/1	21:55:15	1
937	99	15	0,2	cyclictest	0	-21	swapper/1	19:30:18	1
936	99	15	4,4	cyclictest	24042	-21	apt-get	21:40:12	0
936	99	15	4,4	cyclictest	14385	-21	apt-get	19:45:12	0
936	99	15	3,7	cyclictest	18561	-21	apt-get	21:25:12	0
936	99	15	2,8	cyclictest	10	1	ktimersoftd/0	23:50:12	0
936	99	15	2,7	cyclictest	21699	-21	apt-get	20:05:16	0
936	99	15	2,6	cyclictest	2106	-21	apt-get	20:40:13	0
936	99	15	2,11	cyclictest	12914	-21	diskmemload	00:17:30	0
936	99	15	15,0	cyclictest	0	-21	swapper/0	23:47:17	0
936	99	15	13,1	cyclictest	9788	-21	munin-run	22:30:00	0
936	99	15	12,2	cyclictest	1515	-21	thermald	23:16:55	0
936	99	15	12,2	cyclictest	10	1	ktimersoftd/0	21:20:12	0
26378	2	15	0,0	sleep1	0	-21	swapper/1	23:15:08	1
937	99	14	3,5	cyclictest	0	-21	swapper/1	22:30:16	1
937	99	14	3,5	cyclictest	0	-21	swapper/1	21:40:12	1
937	99	14	2,4	cyclictest	0	-21	swapper/1	00:00:18	1
937	99	14	0,6	cyclictest	0	-21	swapper/1	23:45:14	1
937	99	14	0,5	cyclictest	0	-21	swapper/1	21:50:20	1
936	99	14	9,3	cyclictest	10	1	ktimersoftd/0	22:05:25	0
936	99	14	3,4	cyclictest	21437	-21	apt-get	00:30:15	0
936	99	14	2,5	cyclictest	1287	-21	apt-get	23:35:13	0
936	99	14	2,5	cyclictest	11251	-21	apt-get	21:05:13	0
936	99	14	2,10	cyclictest	5042	-21	meminfo	22:15:16	0
936	99	14	1,5	cyclictest	5255	-21	apt-get	19:20:15	0
936	99	14	1,5	cyclictest	3423	-21	apt-get	19:15:18	0
936	99	14	13,0	cyclictest	19082	-21	apt-get	22:55:13	0
936	99	14	0,6	cyclictest	960	-21	apt-get	19:10:12	0
553	2	14	2,2	sleep0	0	-21	swapper/0	19:08:12	0
937	99	13	3,6	cyclictest	0	-21	swapper/1	21:25:11	1
937	99	13	3,2	cyclictest	0	-21	swapper/1	23:15:01	1
937	99	13	2,3	cyclictest	0	-21	swapper/1	22:40:14	1
937	99	13	1,6	cyclictest	0	-21	swapper/1	00:05:19	1
937	99	13	0,7	cyclictest	0	-21	swapper/1	20:10:12	1
937	99	13	0,6	cyclictest	0	-21	swapper/1	20:45:13	1
937	99	13	0,5	cyclictest	0	-21	swapper/1	23:20:14	1
937	99	13	0,5	cyclictest	0	-21	swapper/1	23:00:21	1
937	99	13	0,4	cyclictest	0	-21	swapper/1	23:05:16	1
937	99	13	0,1	cyclictest	0	-21	swapper/1	20:20:13	1
936	99	13	6,5	cyclictest	22219	-21	apt-get	21:35:13	0
936	99	13	4,8	cyclictest	9428	-21	apt-get	21:00:17	0
936	99	13	2,10	cyclictest	153	50	irq/140-nvme0q1	23:30:01	0
936	99	13	1,6	cyclictest	32662	-21	apt-get	20:35:14	0
936	99	13	12,1	cyclictest	25348	-21	apt-get	20:15:11	0
936	99	13	12,0	cyclictest	31359	-21	apt-get	22:00:18	0
936	99	13	11,1	cyclictest	15428	-21	apt-get	22:45:13	0
936	99	13	1,10	cyclictest	25189	-21	latency_hist	20:15:01	0
937	99	12	3,3	cyclictest	0	-21	swapper/1	19:10:19	1
937	99	12	3,3	cyclictest	0	-21	swapper/1	00:15:15	1
937	99	12	3,2	cyclictest	0	-21	swapper/1	23:35:13	1
937	99	12	3,2	cyclictest	0	-21	swapper/1	22:50:12	1
937	99	12	0,6	cyclictest	0	-21	swapper/1	21:20:12	1
936	99	12	7,2	cyclictest	14907	-21	apt-get	21:15:13	0
936	99	12	5,2	cyclictest	29007	-21	apt-get	20:25:13	0
936	99	12	3,4	cyclictest	8911	-21	apt-get	19:30:17	0
936	99	12	3,3	cyclictest	27710	-21	apt-get	21:50:20	0
936	99	12	2,4	cyclictest	2630	-21	apt-get	22:10:15	0
936	99	12	1,7	cyclictest	3936	-21	apt-get	20:45:13	0
936	99	12	10,1	cyclictest	23260	-21	apt-get	00:35:14	0
936	99	12	10,1	cyclictest	16216	-21	apt-get	19:50:14	0
936	99	12	10,1	cyclictest	11775	-21	apt-get	22:35:13	0
936	99	12	10,1	cyclictest	10736	-21	apt-get	19:35:14	0
936	99	12	0,8	cyclictest	5769	-21	apt-get	20:50:12	0
936	99	12	0,5	cyclictest	31878	-21	apt-get	23:30:16	0
937	99	11	9,1	cyclictest	0	-21	swapper/1	22:10:17	1
937	99	11	4,2	cyclictest	0	-21	swapper/1	00:32:18	1
937	99	11	2,7	cyclictest	0	-21	swapper/1	22:05:17	1
937	99	11	2,4	cyclictest	0	-21	swapper/1	22:45:22	1
937	99	11	2,1	cyclictest	0	-21	swapper/1	19:25:20	1
937	99	11	1,4	cyclictest	0	-21	swapper/1	20:25:21	1
937	99	11	1,4	cyclictest	0	-21	swapper/1	00:25:12	1
937	99	11	1,3	cyclictest	0	-21	swapper/1	19:50:14	1
937	99	11	1,3	cyclictest	0	-21	swapper/1	00:10:15	1
937	99	11	0,5	cyclictest	0	-21	swapper/1	21:05:13	1
937	99	11	0,4	cyclictest	0	-21	swapper/1	23:58:17	1
937	99	11	0,0	cyclictest	0	-21	swapper/1	21:17:20	1
936	99	11	8,1	cyclictest	10	1	ktimersoftd/0	00:05:19	0
936	99	11	10,0	cyclictest	27178	-21	apt-get	20:20:13	0
936	99	11	0,10	cyclictest	13669	-21	meminfo	21:10:17	0
532	2	11	1,2	sleep1	0	-21	swapper/1	19:08:03	1
11055	2	11	0,1	sleep1	0	-21	swapper/1	21:04:52	1
937	99	10	5,2	cyclictest	0	-21	swapper/1	19:45:18	1
937	99	10	3,5	cyclictest	0	-21	swapper/1	20:55:12	1
937	99	10	2,3	cyclictest	0	-21	swapper/1	22:00:20	1
937	99	10	2,3	cyclictest	0	-21	swapper/1	20:50:13	1
937	99	10	2,1	cyclictest	0	-21	swapper/1	20:05:16	1
937	99	10	1,5	cyclictest	0	-21	swapper/1	22:24:59	1
937	99	10	1,4	cyclictest	0	-21	swapper/1	20:40:13	1
937	99	10	1,4	cyclictest	0	-21	swapper/1	20:00:25	1
937	99	10	1,1	cyclictest	0	-21	swapper/1	19:55:14	1
937	99	10	10,0	cyclictest	0	-21	swapper/1	00:35:05	1
937	99	10	0,5	cyclictest	0	-21	swapper/1	22:25:12	1
937	99	10	0,5	cyclictest	0	-21	swapper/1	20:30:21	1
937	99	10	0,3	cyclictest	0	-21	swapper/1	21:35:00	1
937	99	10	0,1	cyclictest	0	-21	swapper/1	00:20:13	1
936	99	10	6,3	cyclictest	10	1	ktimersoftd/0	23:55:11	0
936	99	10	6,2	cyclictest	14126	-21	apt-get	00:10:16	0
936	99	10	5,3	cyclictest	11	1	rcuc/0	21:30:24	0
936	99	10	1,4	cyclictest	17256	-21	apt-get	22:50:12	0
936	99	10	0,6	cyclictest	18042	-21	apt-get	19:55:13	0
31869	2	10	0,0	sleep1	0	-21	swapper/1	23:30:13	1
27118	2	10	0,0	sleep1	0	-21	swapper/1	21:45:43	1
937	99	9	1,1	cyclictest	0	-21	swapper/1	23:25:17	1
937	99	9	0,3	cyclictest	0	-21	swapper/1	21:35:13	1
937	99	9	0,3	cyclictest	0	-21	swapper/1	19:15:17	1
936	99	9	4,4	cyclictest	19603	-21	apt-get	00:25:12	0
937	99	8	0,2	cyclictest	0	-21	swapper/1	20:35:14	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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