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2022-12-05 - 01:59

x86 Intel (undisclosed) @1600 MHz, Linux 4.9.20-rt16 (Profile)

Latency plot of system in rack #7, slot #1
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 rack7slot1.osadl.org (updated Sun Dec 04, 2022 12:45:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
31164212258,24sleep30-21swapper/307:07:013
31046210746,56sleep20-21swapper/207:05:462
3128529250,37sleep10-21swapper/107:08:191
3114328156,20sleep00-21swapper/007:06:450
3155699507,28cyclictest0-21swapper/010:25:340
3155699479,23cyclictest0-21swapper/011:30:150
3155699476,38cyclictest0-21swapper/010:35:300
3155699476,25cyclictest0-21swapper/011:50:200
3155699475,28cyclictest0-21swapper/011:30:000
3155699475,28cyclictest0-21swapper/008:35:260
3155699465,26cyclictest0-21swapper/010:10:310
3155699465,26cyclictest0-21swapper/010:10:310
3155699463,35cyclictest0-21swapper/007:45:260
3155699463,33cyclictest0-21swapper/009:15:260
3155699456,22cyclictest0-21swapper/012:35:260
3155699455,38cyclictest0-21swapper/012:25:160
3155699455,38cyclictest0-21swapper/012:20:350
3155699453,39cyclictest0-21swapper/009:25:470
3155699446,24cyclictest0-21swapper/009:50:420
3155699445,28cyclictest0-21swapper/008:15:520
3155699444,37cyclictest0-21swapper/011:20:150
3155699444,36cyclictest0-21swapper/010:30:250
3155699444,35cyclictest9389-21apt-get11:45:220
3155699442,39cyclictest28282-21stress09:20:260
3155699436,34cyclictest0-21swapper/009:10:120
3155699435,35cyclictest28282-21stress12:34:480
3155699435,14cyclictest0-21swapper/010:05:450
3155699433,6cyclictest5795-21apt-get08:25:130
3155699433,38cyclictest0-21swapper/010:15:210
3155699433,38cyclictest0-21swapper/010:15:210
324842425,14sleep20-21swapper/208:12:082
3155699425,35cyclictest0-21swapper/011:00:220
3155699425,35cyclictest0-21swapper/009:35:370
3155699425,34cyclictest0-21swapper/011:35:200
3155699424,19cyclictest0-21swapper/010:55:370
3155699423,4cyclictest28284-21stress12:05:180
31556994220,20cyclictest0-21swapper/010:40:230
3155699415,34cyclictest0-21swapper/012:02:350
3155699415,34cyclictest0-21swapper/012:02:350
3155699415,34cyclictest0-21swapper/011:55:310
3155699415,34cyclictest0-21swapper/011:55:310
3155699415,34cyclictest0-21swapper/009:55:440
3155699415,34cyclictest0-21swapper/009:30:280
3155699415,33cyclictest0-21swapper/011:15:110
3155699414,34cyclictest0-21swapper/009:40:230
325272405,13sleep10-21swapper/108:12:351
3155899407,17cyclictest0-21swapper/212:20:382
31557994010,22cyclictest0-21swapper/109:10:191
3155699405,32cyclictest0-21swapper/007:50:170
3155699405,26cyclictest0-21swapper/009:04:330
3155699405,23cyclictest0-21swapper/009:05:120
3155699405,18cyclictest0-21swapper/011:05:200
3155699405,18cyclictest0-21swapper/011:05:190
3155699405,18cyclictest0-21swapper/010:50:010
3155699405,17cyclictest0-21swapper/008:43:050
3155699404,34cyclictest0-21swapper/010:00:460
3155699403,35cyclictest0-21swapper/010:46:210
31556994020,17cyclictest0-21swapper/012:10:130
26672405,13sleep20-21swapper/208:18:022
208062405,12sleep20-21swapper/208:55:042
197732405,12sleep30-21swapper/307:46:223
176222405,12sleep30-21swapper/308:45:433
100962405,13sleep10-21swapper/108:31:081
31558993912,24cyclictest0-21swapper/212:00:592
31558993912,24cyclictest0-21swapper/212:00:592
3155699396,30cyclictest0-21swapper/011:15:020
3155699395,19cyclictest0-21swapper/012:15:260
3155699394,30cyclictest8309-21apt-get08:30:150
3155699394,20cyclictest0-21swapper/007:30:170
3155699393,4cyclictest28284-21stress11:43:160
3155699393,33cyclictest28282-21stress10:25:000
3155699393,20cyclictest0-21swapper/008:55:250
3155699393,16cyclictest0-21swapper/007:28:530
3155699392,34cyclictest28282-21stress09:49:390
227372395,12sleep30-21swapper/308:56:253
222922395,12sleep30-21swapper/307:51:253
152202395,11sleep20-21swapper/208:42:122
128772395,14sleep10-21swapper/108:38:301
58642385,11sleep20-21swapper/207:20:202
3155899386,18cyclictest0-21swapper/210:58:282
3155699385,3cyclictest0-21swapper/007:15:010
3155699385,18cyclictest0-21swapper/008:45:220
3155699385,17cyclictest0-21swapper/008:50:210
3155699385,16cyclictest0-21swapper/007:55:170
3155699384,14cyclictest0-21swapper/007:40:140
3155699383,4cyclictest25852-21cut08:00:160
3155699383,30cyclictest30615-21apt-get08:10:130
3155699383,13cyclictest0-21swapper/007:20:330
199882385,12sleep20-21swapper/207:48:382
47602375,11sleep20-21swapper/207:17:382
3155999377,27cyclictest0-21swapper/311:46:473
31558993711,23cyclictest0-21swapper/212:19:352
3155699375,15cyclictest0-21swapper/007:10:070
3155699375,14cyclictest0-21swapper/008:20:380
3155699373,31cyclictest0-21swapper/007:35:110
3155699373,31cyclictest0-21swapper/007:35:110
3155699373,15cyclictest0-21swapper/008:07:220
301192375,12sleep20-21swapper/208:08:202
253192375,12sleep30-21swapper/309:01:583
223382375,11sleep20-21swapper/207:51:512
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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