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2022-08-15 - 18:26

x86 Intel Xeon E3-1220L V2 @2300 MHz, Linux 4.9.47-rt37 (Profile)

Latency plot of system in rack #a, slot #0
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
Characteristics of the 100, highest latencies:
System rackaslot0.osadl.org (updated Mon Aug 15, 2022 12:44:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
319021020,0sleep13174-21sshd11:53:551
220022990,1sleep221998-21bash10:58:072
75742910,0sleep00-21swapper/009:41:590
256402870,0sleep225620-21sshd10:00:512
96742820,0sleep00-21swapper/010:25:280
318872630,1sleep10-21swapper/109:24:051
318872630,1sleep10-21swapper/109:24:041
289472600,0sleep30-21swapper/310:18:303
219332600,1sleep121918-21sshd09:17:231
219332600,1sleep121918-21sshd09:17:231
112392600,1sleep30-21swapper/310:51:233
176562570,0sleep20-21swapper/210:43:262
992725633,19sleep20-21swapper/207:09:332
53802560,0sleep10-21swapper/110:39:321
266102560,0sleep326596-21sshd11:38:393
249062560,0sleep30-21swapper/310:20:593
325022550,0sleep00-21swapper/011:27:420
184732550,1sleep22930-21diskmemload09:25:412
117222550,0sleep20-21swapper/212:20:242
97622540,0sleep20-21swapper/212:17:242
219502530,0sleep20-21swapper/209:37:312
161772530,0sleep10-21swapper/112:06:251
981625229,19sleep10-21swapper/107:08:071
73322520,0sleep00-21swapper/012:11:250
68372520,1sleep010-21rcuc/010:10:380
864925128,9sleep30-21swapper/307:05:323
123112510,1sleep10-21swapper/110:51:291
977625027,19sleep00-21swapper/007:07:370
72112500,0sleep00-21swapper/010:22:200
30952500,1sleep21776-21runrttasks11:07:532
136362500,0sleep00-21swapper/012:35:050
308862490,0sleep330885-21sshd09:58:323
250402450,0sleep00-21swapper/010:15:150
224752450,0sleep00-21swapper/011:03:540
50902440,0sleep15062-21sshd10:45:121
230392430,0sleep10-21swapper/111:29:481
92442420,0sleep10-21swapper/111:37:051
120392290,1sleep112040-21sshd10:31:261
318522230,0sleep10-21swapper/110:07:111
280452220,0sleep20-21swapper/210:18:262
1023199222,1cyclictest118850irq/25-eth009:39:113
115172210,1sleep30-21swapper/311:31:343
10229992120,1cyclictest13718-21sshd12:35:051
10231992019,1cyclictest0-21swapper/310:55:093
10229992019,1cyclictest26286-21sshd12:27:311
295182190,1sleep01534-21nfsd11:35:590
10231991918,1cyclictest0-21swapper/309:49:243
10229991917,1cyclictest22709-21sshd09:34:471
16422180,0sleep10-21swapper/110:04:341
133192180,0sleep20-21swapper/209:16:372
133192180,0sleep20-21swapper/209:16:372
10230991816,1cyclictest0-21swapper/210:45:542
10228991816,1cyclictest22434-21sshd12:32:560
247022170,1sleep324699-21bash09:26:143
109682170,0sleep20-21swapper/209:33:422
10230991714,2cyclictest0-21swapper/211:40:562
10230991714,2cyclictest0-21swapper/211:40:562
10228991715,1cyclictest17194-21sshd09:22:430
10228991715,1cyclictest17194-21sshd09:22:430
274562160,1sleep127453-21bash11:44:311
274562160,1sleep127453-21bash11:44:311
1023099160,1cyclictest0-21swapper/212:26:202
1022899160,13cyclictest0-21swapper/010:50:140
1022899160,12cyclictest20280-21sshd09:14:250
88622150,1sleep21535-21nfsd11:25:322
28922150,0sleep30-21swapper/310:42:063
266222150,1sleep10-21swapper/112:13:101
166602150,1sleep00-21swapper/009:28:270
10231991513,1cyclictest17758-21sshd11:52:183
10230991513,1cyclictest118850irq/25-eth011:51:022
1022999159,2cyclictest0-21swapper/109:47:221
1022899159,3cyclictest0-21swapper/009:50:120
1022899158,6cyclictest8088-21sshd10:36:500
1022899158,4cyclictest25570-21sshd11:41:220
1022899158,4cyclictest25570-21sshd11:41:220
1022899158,4cyclictest0-21swapper/011:24:090
1022899154,10cyclictest0-21swapper/011:50:400
10228991513,1cyclictest17473-21sshd12:23:530
1022899150,4cyclictest4543-21sshd10:07:390
1022899150,14cyclictest0-21swapper/010:33:280
1022899150,13cyclictest0-21swapper/010:47:100
250692140,1sleep025064-21sshd11:15:320
1023199149,2cyclictest0-21swapper/311:09:553
1023199140,13cyclictest16918-21sshd12:38:143
1023099149,2cyclictest0-21swapper/211:30:132
1023099149,1cyclictest0-21swapper/211:46:192
10230991412,1cyclictest17130-21sshd10:37:402
10230991411,2cyclictest0-21swapper/211:15:502
1023099140,13cyclictest11875-21sshd09:56:472
1022999149,4cyclictest0-21swapper/112:03:041
1022999149,1cyclictest0-21swapper/111:01:111
1022999141,1cyclictest6945-21sshd11:34:061
1022999141,1cyclictest0-21swapper/110:25:121
1022999140,5cyclictest20813-21sshd11:06:341
1022999140,13cyclictest21797-21bash11:20:591
1022999140,13cyclictest0-21swapper/112:15:211
1022999140,10cyclictest0-21swapper/109:13:101
1022899149,4cyclictest0-21swapper/012:05:310
1022899149,4cyclictest0-21swapper/011:30:160
1022899148,3cyclictest0-21swapper/009:15:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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