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2026-04-28 - 14:56
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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
Characteristics of the 100 highest latencies:
System rack1slot3.osadl.org (updated Tue Apr 28, 2026 12:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
102793899130,1cyclictest0-21swapper/308:10:113
102793899130,11cyclictest0-21swapper/310:00:133
102793899130,11cyclictest0-21swapper/307:45:123
102793899120,11cyclictest0-21swapper/312:35:143
102793899120,11cyclictest0-21swapper/312:00:213
102793899120,11cyclictest0-21swapper/310:45:183
102793899120,11cyclictest0-21swapper/308:45:013
1027938991111,0cyclictest0-21swapper/309:10:113
102793899110,10cyclictest0-21swapper/311:25:473
102793899110,10cyclictest0-21swapper/311:15:193
102793899110,0cyclictest0-21swapper/312:20:133
102793899110,0cyclictest0-21swapper/311:45:173
102793899110,0cyclictest0-21swapper/311:15:023
102793899110,0cyclictest0-21swapper/309:45:183
102793899110,0cyclictest0-21swapper/308:30:023
102793899110,0cyclictest0-21swapper/308:20:123
102793899110,0cyclictest0-21swapper/307:35:123
102793899109,0cyclictest0-21swapper/310:35:133
102793899109,0cyclictest0-21swapper/309:23:493
102793899109,0cyclictest0-21swapper/308:05:123
1027938991010,0cyclictest0-21swapper/312:05:183
1027938991010,0cyclictest0-21swapper/312:05:183
1027938991010,0cyclictest0-21swapper/311:55:123
1027938991010,0cyclictest0-21swapper/311:30:113
1027938991010,0cyclictest0-21swapper/311:20:143
1027938991010,0cyclictest0-21swapper/311:00:173
1027938991010,0cyclictest0-21swapper/310:55:133
1027938991010,0cyclictest0-21swapper/308:00:153
102793899100,9cyclictest0-21swapper/309:40:013
102793899100,0cyclictest0-21swapper/310:50:123
102793899100,0cyclictest0-21swapper/310:20:193
102793899100,0cyclictest0-21swapper/309:40:193
102793899100,0cyclictest0-21swapper/309:15:173
10279389999,0cyclictest0-21swapper/307:20:113
10279389998,0cyclictest0-21swapper/311:05:133
10279389998,0cyclictest0-21swapper/308:15:173
10279389990,9cyclictest0-21swapper/307:15:013
1026158291,5sleep30-21swapper/307:05:133
10279389988,0cyclictest0-21swapper/310:41:263
10279389988,0cyclictest0-21swapper/310:05:133
10279389988,0cyclictest0-21swapper/309:50:183
10279389988,0cyclictest0-21swapper/309:25:103
10279389988,0cyclictest0-21swapper/308:51:473
10279389988,0cyclictest0-21swapper/307:55:113
10279389988,0cyclictest0-21swapper/307:50:143
10279389988,0cyclictest0-21swapper/307:20:013
10279389987,0cyclictest0-21swapper/310:10:123
10279389980,0cyclictest0-21swapper/309:34:573
10279389977,0cyclictest0-21swapper/312:25:133
10279389977,0cyclictest0-21swapper/312:15:143
10279389977,0cyclictest0-21swapper/311:50:123
10279389977,0cyclictest0-21swapper/309:03:483
10279389977,0cyclictest0-21swapper/308:45:493
10279389977,0cyclictest0-21swapper/307:29:583
10279389976,0cyclictest0-21swapper/309:05:143
10279389976,0cyclictest0-21swapper/307:41:483
10279389976,0cyclictest0-21swapper/307:41:473
10279389970,7cyclictest0-21swapper/308:35:003
10279389970,0cyclictest0-21swapper/309:00:013
10279389966,0cyclictest0-21swapper/310:15:143
10279389965,0cyclictest0-21swapper/311:40:133
10279389960,6cyclictest0-21swapper/312:34:563
10279389955,0cyclictest0-21swapper/310:31:583
10279389955,0cyclictest0-21swapper/309:55:113
10279389954,0cyclictest0-21swapper/308:30:153
10279389944,0cyclictest0-21swapper/312:10:063
10279389944,0cyclictest0-21swapper/310:26:023
10279389944,0cyclictest0-21swapper/307:30:363
10279389940,3cyclictest1136265-21chrt11:35:023
1027780242,1sleep20-21swapper/207:09:492
1026516241,2sleep10-21swapper/107:05:161
1026257241,1sleep00-21swapper/007:05:150
1161593230,1sleep21161637-21aten_r1power_cu12:35:142
1116986230,1sleep01117014-21apt-get10:50:120
1106499230,1sleep01106529-21apt-get10:25:110
1075767230,2sleep11075979-21awk09:10:161
1060553230,1sleep21060672-21sed08:30:182
1039971230,2sleep01039986-21latency_hist07:40:000
1159668220,1sleep01159939-21df_inode12:30:140
1155347220,1sleep20-21swapper/212:20:132
1144221220,1sleep21144223-21ssh11:53:392
1143340220,1sleep11143508-21grep11:50:181
1138392220,1sleep10-21swapper/111:40:121
1128638220,1sleep21128848-21grep11:15:202
1126957220,1sleep00-21swapper/011:10:540
1120895220,1sleep00-21swapper/011:00:020
1104097220,0sleep00-21swapper/010:19:350
1103073220,1sleep21103194-21processes10:15:172
1101910220,2sleep01101912-21ssh10:13:420
1088405220,0sleep00-21swapper/009:40:210
1087190220,0sleep10-21swapper/109:40:011
1075684220,1sleep01075766-21irqstats09:10:150
1068348220,1sleep21068478-21sendmail_mailqu08:50:192
1064266220,1sleep20-21swapper/208:40:152
1063913220,1sleep01064186-21df_inode08:40:120
1061318220,1sleep01061730-21cat08:35:010
1045443220,2sleep2766-21snmpd07:51:282
1163053210,0sleep00-21swapper/012:36:470
1162026210,0sleep10-21swapper/112:35:171
1160848210,0sleep10-21swapper/112:30:401
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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