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2022-07-06 - 23:57

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #5, 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 
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x86 Intel Atom E3940 @1600 MHz, Linux 4.16.15-rt7 (Profile)

Latency plot of shadow in rack #5, slot #3
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 100, Linux 4.9.20-rt16, x86_64 highest latencies:
System rack5slot3s.osadl.org (updated Wed Jul 06, 2022 12:44:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
17242243164,24sleep10-21swapper/107:09:091
17242243164,24sleep10-21swapper/107:09:091
15172238163,24sleep30-21swapper/307:06:463
15172238163,24sleep30-21swapper/307:06:463
14992237163,60sleep00-21swapper/007:06:320
14992237163,60sleep00-21swapper/007:06:310
15722203165,25sleep20-21swapper/207:07:172
15722203165,25sleep20-21swapper/207:07:172
2603821620,3sleep0188499cyclictest09:15:160
2603821620,3sleep0188499cyclictest09:15:160
1123721570,4sleep3190299cyclictest08:40:243
189699104101,2cyclictest0-21swapper/212:32:002
65742560,4sleep3190299cyclictest10:59:573
1884993912,13cyclictest22950-21munin-run09:10:010
72722370,1sleep10-21swapper/111:00:141
1902993713,21cyclictest3053-21/usr/sbin/munin12:05:243
190299371,11cyclictest22541-21/usr/sbin/munin07:55:263
190299371,11cyclictest14370-21df12:30:133
1902993613,20cyclictest13419-21/usr/sbin/munin11:15:243
1884993611,12cyclictest12569-21munin-run10:00:010
1902993512,3cyclictest4007-21/usr/sbin/munin09:40:233
1902993512,3cyclictest11839-21/usr/sbin/munin12:25:153
1902993511,5cyclictest28805-21gltestperf10:35:173
190299351,12cyclictest18069-21sshd12:38:303
190299349,4cyclictest15184-21/usr/sbin/munin07:35:263
190299343,4cyclictest13400-40dnf07:33:353
190299342,12cyclictest23836-21grep09:10:193
1902993411,3cyclictest18150-21/usr/sbin/munin07:45:213
1902993411,2cyclictest18764-21/usr/sbin/munin09:00:263
190299340,32cyclictest0-21swapper/311:05:243
190299331,7cyclictest25372-21/usr/sbin/munin09:15:193
190299331,7cyclictest25372-21/usr/sbin/munin09:15:193
1902993311,3cyclictest30384-21/usr/sbin/munin10:40:253
1902993310,4cyclictest9752-21turbostat08:40:023
189099331,17cyclictest0-21swapper/110:50:151
188499338,12cyclictest19783-21munin-run11:30:010
190299329,2cyclictest10602-21/usr/sbin/munin09:55:313
190299324,3cyclictest86550irq/126-enp1s0-10:10:133
1902993211,3cyclictest8363-21memory12:15:203
1902993211,3cyclictest24124-21sshd11:39:303
190299321,13cyclictest0-21swapper/310:05:173
1902993210,3cyclictest25352-21grep08:00:163
1902993210,3cyclictest19391-21/usr/sbin/munin10:15:133
190299317,4cyclictest30204-21timerwakeupswit11:50:263
190299317,3cyclictest0-21swapper/311:41:423
190299314,4cyclictest0-21swapper/310:21:213
190299314,4cyclictest0-21swapper/310:21:213
190299311,6cyclictest27950-21latency_hist10:35:013
190299311,3cyclictest11648-21latency_hist12:25:013
1902993111,3cyclictest28601-21cat11:50:013
1902993111,3cyclictest11480-21cat11:10:133
1902993110,3cyclictest30676-21load09:25:213
190299310,13cyclictest0-21swapper/311:56:313
1890993115,4cyclictest20921-21memory11:30:191
189099311,21cyclictest0-21swapper/108:51:311
188499314,12cyclictest22944-21diskmemload10:50:010
190299308,3cyclictest7866-21sort07:20:163
190299301,9cyclictest571-21ntp_states09:30:223
190299301,9cyclictest0-21swapper/311:00:223
1902993012,3cyclictest15399-21nfs4_client08:50:203
190299301,15cyclictest0-21swapper/308:34:173
1902993011,2cyclictest6504-21unixbench_multi07:15:433
1902993010,3cyclictest836-21runrttasks09:53:543
1902993010,3cyclictest5802-21cut12:10:143
1902993010,3cyclictest32489-21grep08:15:223
1902993010,3cyclictest18564-21awk11:25:163
190299299,3cyclictest2598-21wc08:20:253
190299299,3cyclictest21575-21expr09:05:163
190299299,3cyclictest12789-21gltestperf08:45:163
190299299,2cyclictest24314-21fschecks_time10:25:153
190299298,3cyclictest21071-21if_enp1s007:50:193
190299294,3cyclictest86550irq/126-enp1s0-09:45:133
190299293,5cyclictest15962-21diskstats11:20:153
1902992910,3cyclictest3572-21cstates08:25:143
189099292,10cyclictest3777-21latency_hist09:40:011
188499293,13cyclictest22318-21munin-run07:55:000
190299289,3cyclictest2694-21latency09:35:183
190299288,3cyclictest20421-21grep11:30:153
1902992811,3cyclictest3287-21sed10:50:183
190299281,12cyclictest32579-21/usr/sbin/munin10:45:203
190299281,11cyclictest86550irq/126-enp1s0-08:10:243
190299281,11cyclictest86550irq/126-enp1s0-08:10:243
190299281,11cyclictest0-21swapper/309:23:153
1902992810,3cyclictest2760-21sh07:10:163
1902992810,3cyclictest17871-21switchtime08:55:253
189099286,3cyclictest0-21swapper/107:58:351
1890992813,5cyclictest780-21rngd11:05:151
189099281,12cyclictest0-21swapper/108:13:111
189099281,12cyclictest0-21swapper/108:13:111
1890992811,10cyclictest86750irq/128-enp1s0-12:05:371
190299275,4cyclictest0-21swapper/312:00:033
190299271,6cyclictest0-21swapper/310:01:473
190299271,10cyclictest11328-21latency_hist07:30:033
190299268,3cyclictest16800-21latency07:40:193
189099261,18cyclictest0-21swapper/111:35:021
189099261,18cyclictest0-21swapper/111:11:511
189099261,10cyclictest780-21rngd08:05:231
188499261,13cyclictest7235-21awk12:15:000
188499261,12cyclictest30788-21awk11:55:010
189699250,10cyclictest0-21swapper/209:12:552
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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