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2024-09-16 - 06:01
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
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 50 highest latencies:
System rack0slot4.osadl.org (updated Mon Sep 16, 2024 00:46:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4873062375351,14sleep100-21swapper/1019:06:212
4872782363317,15sleep90-21swapper/919:06:0415
4873022362313,15sleep80-21swapper/819:06:1914
4875182356312,14sleep60-21swapper/619:09:1312
4875422346321,15sleep120-21swapper/1219:09:364
4874552345320,15sleep30-21swapper/319:08:239
4874232344319,15sleep140-21swapper/1419:08:016
4875122343318,15sleep20-21swapper/219:09:108
4873972342318,14sleep50-21swapper/519:07:3511
4872902342317,16sleep150-21swapper/1519:06:107
4873882341317,15sleep130-21swapper/1319:07:275
4873312341316,15sleep10-21swapper/119:06:431
4873012341317,14sleep70-21swapper/719:06:1813
4872722341317,14sleep40-21swapper/419:05:5810
4874462339316,13sleep110-21swapper/1119:08:153
4875102338314,14sleep00-21swapper/019:09:070
48798599278277,1cyclictest598812-21nodedev-init21:15:175
48796099272271,0cyclictest0-21swapper/521:15:1711
487972999694,1cyclictest0-21swapper/920:20:1815
48795599960,95cyclictest0-21swapper/419:45:1810
487952999089,1cyclictest504471-21nodedev-init19:25:189
487991998988,1cyclictest0-21swapper/1523:55:197
487952998583,1cyclictest0-21swapper/320:35:179
487981997675,1cyclictest590228-21nodedev-init21:05:184
487945997675,1cyclictest731663-21nodedev-init23:50:171
487945996664,1cyclictest551624-21nodedev-init20:20:181
487950996059,1cyclictest650236-21nodedev-init22:15:198
487955995454,0cyclictest0-21swapper/421:05:1810
487975995352,1cyclictest667374-21nodedev-init22:35:192
487972995250,1cyclictest0-21swapper/922:55:1715
487965994947,1cyclictest0-21swapper/719:55:1813
487965993837,1cyclictest594521-21nodedev-init21:10:1713
487977993736,1cyclictest615950-21nodedev-init21:35:183
487950993434,0cyclictest0-21swapper/200:32:528
487981993130,1cyclictest0-21swapper/1219:50:184
487965993131,0cyclictest0-21swapper/700:30:0013
48797599300,1cyclictest0-21swapper/1019:40:162
48797599300,1cyclictest0-21swapper/1019:40:162
487965993030,0cyclictest0-21swapper/721:41:1513
487950993030,0cyclictest0-21swapper/220:51:278
487950993030,0cyclictest0-21swapper/219:16:368
48794599303,27cyclictest0-21swapper/122:54:061
487987992928,1cyclictest0-21swapper/1420:55:186
487987992927,1cyclictest2337-21snmpd21:57:476
487977992928,1cyclictest0-21swapper/1121:40:183
487950992929,0cyclictest0-21swapper/223:51:188
487950992929,0cyclictest0-21swapper/223:46:588
487950992929,0cyclictest0-21swapper/200:27:468
48799199280,27cyclictest0-21swapper/1520:25:327
48799199280,1cyclictest0-21swapper/1522:43:387
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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