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2022-06-30 - 22:26

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, Linux 4.9.20-rt16, x86_64 highest latencies:
System rackaslot0.osadl.org (updated Thu Jun 30, 2022 12:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
758421040,0sleep37572-21sshd11:21:553
115162980,0sleep10-21swapper/110:50:131
99782610,0sleep30-21swapper/309:16:013
266652610,1sleep00-21swapper/009:14:420
45382580,0sleep00-21swapper/009:33:120
45382580,0sleep00-21swapper/009:33:120
258472570,1sleep10-21swapper/109:35:101
242442570,0sleep20-21swapper/210:22:022
326602560,0sleep20-21swapper/209:38:432
74322550,0sleep10-21swapper/110:26:201
191572540,0sleep219156-21sshd10:33:192
315052530,1sleep10-21swapper/110:49:051
217312530,1sleep37107-21diskmemload12:30:093
152382520,1sleep115237-21sshd09:45:511
1405425231,18sleep10-21swapper/107:08:591
78922510,0sleep07889-21sshd11:56:480
1383525124,8sleep20-21swapper/207:06:152
123272510,0sleep20-21swapper/212:17:342
157692500,0sleep115767-21sshd09:40:091
141792500,0sleep314177-21bash11:34:093
1397525028,18sleep30-21swapper/307:08:013
116102500,0sleep041ktimersoftd/012:14:400
299292490,1sleep01776-21runrttasks10:40:100
1396624923,9sleep00-21swapper/007:07:540
260012480,0sleep025964-21sshd11:23:360
108982480,1sleep010900-21bash09:19:060
209372470,1sleep220919-21sshd10:48:052
69962450,1sleep26994-21sshd11:39:202
226442450,1sleep222642-21sshd11:23:192
124752430,0sleep27107-21diskmemload10:56:022
190612420,0sleep20-21swapper/212:06:322
320012410,0sleep10-21swapper/111:38:401
217842380,1sleep10-21swapper/111:40:361
255952300,0sleep30-21swapper/311:52:363
255952300,0sleep30-21swapper/311:52:363
14402992119,1cyclictest0-21swapper/212:13:322
71362200,1sleep228-21rcuc/209:21:412
14403992017,2cyclictest0-21swapper/310:52:423
1440399200,19cyclictest0-21swapper/312:21:343
115532200,1sleep111551-21sshd10:09:071
1440099197,2cyclictest0-21swapper/011:02:010
14403991817,1cyclictest0-21swapper/312:14:593
14403991817,1cyclictest0-21swapper/311:07:033
1440199188,10cyclictest118850irq/25-eth011:45:391
1440199188,10cyclictest118850irq/25-eth011:45:391
1440099188,3cyclictest0-21swapper/011:42:130
1440099187,2cyclictest0-21swapper/012:16:060
1440099181,11cyclictest0-21swapper/012:24:520
14400991811,1cyclictest0-21swapper/009:47:320
1440099180,1cyclictest31307-21sshd11:06:300
1440099180,11cyclictest0-21swapper/010:18:460
1440099180,10cyclictest0-21swapper/011:49:480
1440099180,10cyclictest0-21swapper/011:49:480
88872170,1sleep20-21swapper/210:05:512
53562170,1sleep20-21swapper/210:02:352
290222170,0sleep329017-21sshd09:44:173
1440099178,2cyclictest0-21swapper/012:00:190
14400991711,1cyclictest6317-21sshd09:39:170
1440099170,9cyclictest118850irq/25-eth010:01:330
1440099170,1cyclictest17873-21cp12:26:470
1440199162,8cyclictest0-21swapper/108:25:561
14401991615,1cyclictest118850irq/25-eth010:01:301
1440199160,15cyclictest22011-21sshd10:42:191
1440099169,3cyclictest0-21swapper/012:38:160
1440099160,9cyclictest16907-21diskstats07:15:010
1440099160,9cyclictest0-21swapper/010:14:140
1440099160,1cyclictest0-21swapper/010:35:310
1440099160,10cyclictest0-21swapper/012:34:170
1440099160,10cyclictest0-21swapper/009:52:280
1440099160,0cyclictest0-21swapper/010:55:160
1440399159,3cyclictest0-21swapper/310:48:333
14402991513,1cyclictest18516-21sshd10:50:442
1440199154,2cyclictest0-21swapper/110:33:191
1440199150,5cyclictest0-21swapper/111:31:041
1440199150,12cyclictest0-21swapper/112:06:221
1440099159,3cyclictest8134-21sshd09:56:570
14400991511,1cyclictest0-21swapper/011:11:220
1440099150,11cyclictest0-21swapper/009:44:530
139102150,0sleep10-21swapper/110:21:031
101372150,0sleep00-21swapper/010:26:360
238372140,0sleep30-21swapper/311:11:423
147102140,0sleep03-21ksoftirqd/012:09:070
1440399149,2cyclictest1896-21bash10:02:153
1440299140,13cyclictest27522-21sshd11:26:352
1440199149,4cyclictest0-21swapper/109:25:331
1440199149,4cyclictest0-21swapper/109:20:501
1440199149,2cyclictest0-21swapper/112:32:381
1440199149,2cyclictest0-21swapper/112:11:541
14401991412,1cyclictest0-21swapper/112:28:201
1440199140,13cyclictest0-21swapper/112:16:011
1440199140,13cyclictest0-21swapper/111:25:311
1440099149,4cyclictest0-21swapper/010:30:140
1440099149,2cyclictest0-21swapper/011:28:090
14400991411,2cyclictest0-21swapper/011:39:020
1440099140,13cyclictest5440-21cp11:15:510
1440099140,11cyclictest0-21swapper/011:50:560
1440099140,11cyclictest0-21swapper/011:50:550
1440099140,11cyclictest0-21swapper/010:53:120
98052130,0sleep00-21swapper/011:30:460
323602130,1sleep30-21swapper/311:38:423
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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