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2023-06-06 - 05:10

x86 Intel Xeon E5620 @2400 MHz, Linux 4.19.127-rt55 (Profile)

Latency plot of system in rack #c, 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 -Up99 -i200 -h400 --smi -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 rackcslot0.osadl.org (updated Tue Jun 06, 2023 00:43:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
177512133104,24sleep50-21swapper/519:20:2811
176162126103,18sleep150-21swapper/1519:18:467
177832118103,11sleep10-21swapper/119:20:561
17779211592,18sleep140-21swapper/1419:20:536
177012115102,8sleep130-21swapper/1319:19:485
17623211393,15sleep40-21swapper/419:18:5110
17587210078,17sleep60-21swapper/619:18:2112
1780529977,17sleep20-21swapper/219:21:138
173072930,0sleep30-21swapper/321:52:359
1781229176,9sleep70-21swapper/719:21:1813
1760029072,13sleep00-21swapper/019:18:310
1775828976,9sleep120-21swapper/1219:20:354
1773628975,4sleep90-21swapper/919:20:1615
1769828981,4sleep110-21swapper/1119:19:463
200412880,5sleep101839299cyclictest20:02:312
1764828872,11sleep80-21swapper/819:19:1114
1762928872,12sleep100-21swapper/1019:18:572
84622870,0sleep70-21swapper/719:47:4613
193902860,1sleep10-21swapper/121:17:471
1762228375,4sleep30-21swapper/319:18:509
244072810,0sleep110-21swapper/1100:50:353
67482750,5sleep31838399cyclictest23:22:439
1838999411,17cyclictest0-21swapper/820:22:3014
1838999411,17cyclictest0-21swapper/820:22:3014
1839899370,2cyclictest0-21swapper/1422:07:356
306032340,1sleep30-21swapper/322:07:189
1838299339,21cyclictest0-21swapper/222:17:408
1838299338,22cyclictest16382-21fschecks_time19:57:398
1838299338,15cyclictest119801cstates00:37:378
1838299329,20cyclictest3122-21cpuspeed_turbos19:42:348
1838299329,16cyclictest92351latency_hist23:27:178
1838299328,19cyclictest41861cstates20:22:318
1838299328,19cyclictest41861cstates20:22:318
1838299326,24cyclictest0-21swapper/220:29:178
1838299326,24cyclictest0-21swapper/220:29:178
1838299324,22cyclictest0-21swapper/200:46:248
18382993211,19cyclictest0-21swapper/223:27:478
18382993211,19cyclictest0-21swapper/222:02:568
18382993211,19cyclictest0-21swapper/200:09:078
18382993210,20cyclictest0-21swapper/221:47:588
1838299320,25cyclictest0-21swapper/219:48:248
1838299319,20cyclictest17358-21nfsd20:09:008
1838299319,20cyclictest0-21swapper/221:18:128
1838299319,20cyclictest0-21swapper/219:41:548
18382993119,10cyclictest26574-21apt-get22:37:228
18382993114,15cyclictest0-21swapper/200:23:018
18382993113,16cyclictest0-21swapper/223:53:308
18382993113,16cyclictest0-21swapper/221:44:598
18382993113,16cyclictest0-21swapper/200:33:238
18382993112,18cyclictest0-21swapper/223:48:278
18382993112,16cyclictest803-21sed21:32:538
18382993111,18cyclictest0-21swapper/222:45:348
18382993111,18cyclictest0-21swapper/219:52:338
18382993111,17cyclictest0-21swapper/220:52:538
18382993110,19cyclictest0-21swapper/220:38:218
18382993110,19cyclictest0-21swapper/220:38:218
18382993110,19cyclictest0-21swapper/200:28:258
296792300,1sleep00-21swapper/022:03:150
1839499300,2cyclictest0-21swapper/1122:02:353
1838999300,27cyclictest0-21swapper/821:07:3214
1838299309,20cyclictest0-21swapper/221:37:288
1838299309,19cyclictest0-21swapper/222:52:358
1838299309,19cyclictest0-21swapper/222:52:358
1838299309,19cyclictest0-21swapper/200:03:208
1838299308,20cyclictest0-21swapper/220:12:198
1838299308,20cyclictest0-21swapper/219:22:358
1838299307,21cyclictest0-21swapper/222:00:308
1838299307,21cyclictest0-21swapper/220:17:578
1838299307,21cyclictest0-21swapper/220:17:578
1838299306,22cyclictest0-21swapper/223:13:548
18382993016,11cyclictest14578-21sshd23:32:188
18382993014,14cyclictest0-21swapper/220:47:468
18382993013,16cyclictest0-21swapper/219:27:208
18382993013,15cyclictest0-21swapper/222:28:218
18382993013,15cyclictest0-21swapper/222:23:048
18382993012,17cyclictest0-21swapper/200:21:528
18382993012,16cyclictest0-21swapper/223:07:468
18382993012,16cyclictest0-21swapper/223:07:468
18382993012,16cyclictest0-21swapper/222:52:178
18382993012,16cyclictest0-21swapper/222:52:178
18382993011,18cyclictest0-21swapper/222:07:598
18382993011,17cyclictest0-21swapper/223:03:288
18382993011,17cyclictest0-21swapper/223:03:288
18382993011,17cyclictest0-21swapper/221:13:448
18382993011,17cyclictest0-21swapper/221:02:438
18382993011,16cyclictest0-21swapper/200:12:368
18382993010,18cyclictest0-21swapper/223:57:358
18382993010,18cyclictest0-21swapper/223:01:408
18382993010,18cyclictest0-21swapper/223:01:408
18382993010,18cyclictest0-21swapper/222:12:548
18382993010,18cyclictest0-21swapper/221:27:328
18382993010,18cyclictest0-21swapper/221:22:378
18382993010,18cyclictest0-21swapper/220:45:578
18382993010,18cyclictest0-21swapper/220:02:368
1838299297,20cyclictest13751-21cat20:32:438
1838299297,20cyclictest13751-21cat20:32:438
1838299297,20cyclictest0-21swapper/223:17:478
18382992913,14cyclictest0-21swapper/221:07:488
18382992912,16cyclictest0-21swapper/219:32:438
18382992911,16cyclictest0-21swapper/222:32:388
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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