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2025-07-09 - 09:12
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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 Wed Jul 09, 2025 00:46:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
12529642368346,14sleep30-21swapper/319:06:049
12531862359315,14sleep60-21swapper/619:09:0412
12532232358312,15sleep70-21swapper/719:09:3713
12529402354310,16sleep20-21swapper/219:05:478
12529662353311,15sleep50-21swapper/519:06:0511
12531572352311,14sleep10-21swapper/119:08:421
12529612352310,15sleep00-21swapper/019:06:000
12530382348326,14sleep140-21swapper/1419:07:036
12531652346323,14sleep80-21swapper/819:08:5014
12531492343320,15sleep100-21swapper/1019:08:352
12531912342320,14sleep110-21swapper/1119:09:103
12529572342319,15sleep130-21swapper/1319:05:575
12532312341318,15sleep150-21swapper/1519:09:457
12530362341318,15sleep120-21swapper/1219:07:024
12531482339317,14sleep90-21swapper/919:08:3515
12531412338316,14sleep40-21swapper/419:08:3010
125369499308307,1cyclictest1522330-21nodev-device-ev00:20:182
125371199288288,0cyclictest0-21swapper/1519:35:197
125366999260260,0cyclictest0-21swapper/220:05:198
1253704992430,242cyclictest1304258-21daemon-init20:05:185
125366999233233,0cyclictest0-21swapper/200:20:178
125368499168167,1cyclictest1347036-21nodev-device-ev20:55:2313
125368499168167,1cyclictest1278650-21nodev-device-ev19:35:1913
125369499136134,1cyclictest1304291-21nodev-device-ev20:05:192
125367499101100,1cyclictest1423988-21nodev-device-ev22:25:1810
1253674999897,1cyclictest0-21swapper/423:00:1910
1253664999897,1cyclictest1287200-21nodev-device-ev19:45:201
1253681999695,1cyclictest1270099-21nodev-device-ev19:25:1712
1253694999190,1cyclictest1496657-21nodev-device-ev23:50:172
1253681998786,1cyclictest0-21swapper/619:40:1812
1253664998584,1cyclictest1526593-21nodev-device-ev00:25:201
1253679998483,1cyclictest1441085-21nodev-device-ev22:45:2111
1253699998180,1cyclictest1364163-21nodev-device-ev21:15:203
1253704997776,1cyclictest1458205-21nodev-device-ev23:05:195
1253711997574,1cyclictest0-21swapper/1520:40:217
1253709997069,1cyclictest0-21swapper/1422:20:206
1253681996968,1cyclictest0-21swapper/620:20:1812
1253701996767,0cyclictest0-21swapper/1222:30:174
1253701996463,1cyclictest0-21swapper/1222:25:184
1253699996463,1cyclictest0-21swapper/1119:50:183
1253699996261,1cyclictest0-21swapper/1119:10:193
1253701996160,1cyclictest1453888-21nodev-device-ev23:00:194
1253694996160,1cyclictest1445357-21nodev-device-ev22:50:172
1253694995958,1cyclictest1376967-21nodev-device-ev21:30:182
1253689995958,1cyclictest0-21swapper/821:45:1814
1253709994948,1cyclictest0-21swapper/1422:55:186
1253681994948,1cyclictest1462468-21nodev-device-ev23:10:1912
1253679994948,1cyclictest1505207-21nodev-device-ev00:00:1811
1253671994746,1cyclictest0-21swapper/323:40:219
1253694994645,1cyclictest1342773-21nodev-device-ev20:50:222
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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