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2025-07-13 - 16:14
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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 100 highest latencies:
System rack0slot4.osadl.org (updated Sun Jul 13, 2025 00:46:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
18336822357311,14sleep100-21swapper/1019:08:412
18335782353311,14sleep60-21swapper/619:07:1612
18336802352308,14sleep80-21swapper/819:08:4014
18334702352311,33sleep10-21swapper/119:05:501
18336362346324,14sleep00-21swapper/019:07:590
18335642346305,13sleep90-21swapper/919:07:0415
18336702344321,15sleep150-21swapper/1519:08:307
18337812343319,15sleep50-21swapper/519:09:5611
18334992342319,15sleep70-21swapper/719:06:1313
18334772342320,14sleep20-21swapper/219:05:518
18337772340316,15sleep30-21swapper/319:09:559
18336692340315,16sleep140-21swapper/1419:08:296
18334862340318,15sleep110-21swapper/1119:06:013
18302092340318,14sleep40-21swapper/419:05:0610
18337262339316,15sleep120-21swapper/1219:09:164
18335452339316,15sleep130-21swapper/1319:06:525
183418999289288,1cyclictest1839130-21nodev-device-ev19:15:013
183418399264262,1cyclictest1880562-21nodev-device-ev20:00:2115
183416399245244,1cyclictest2115889-21nodev-device-ev00:35:199
183420399238238,0cyclictest0-21swapper/1519:30:187
183417399232231,1cyclictest1867720-21nodev-device-ev19:45:1912
183416399231230,0cyclictest0-21swapper/319:15:019
183417799227225,1cyclictest1854914-21nodev-device-ev19:30:1813
183415999207206,1cyclictest0-21swapper/221:55:198
183415799198198,0cyclictest0-21swapper/120:00:201
183418999101101,0cyclictest0-21swapper/1100:35:203
18341839910099,1cyclictest1850635-21nodev-device-ev19:25:1915
1834157999795,1cyclictest2013091-21nodev-device-ev22:35:221
1834198999088,2cyclictest0-21swapper/1419:45:206
1834179998584,1cyclictest0-21swapper/822:50:2114
1834187998281,1cyclictest1957516-21nodev-device-ev21:30:182
1834167998281,1cyclictest0-21swapper/420:20:2010
1834163998180,1cyclictest1872012-21nodev-device-ev19:50:209
1834187998079,1cyclictest1978869-21nodev-device-ev21:55:192
1834187998079,1cyclictest0-21swapper/1022:55:212
1834187998079,1cyclictest0-21swapper/1000:10:202
1834187998079,1cyclictest0-21swapper/1000:10:202
1834183998079,1cyclictest0-21swapper/923:05:2015
1834195997978,1cyclictest0-21swapper/1323:35:215
1834187997574,1cyclictest2107334-21nodev-device-ev00:25:182
1834169997574,1cyclictest2064376-21nodev-device-ev23:35:2111
1834187997473,1cyclictest2034446-21nodev-device-ev23:00:182
1834187997473,1cyclictest0-21swapper/1020:10:202
1834153997372,1cyclictest2085753-21nodev-device-ev00:00:180
1834153996968,1cyclictest2068661-21nodev-device-ev23:40:200
1834173996564,1cyclictest1910487-21nodev-device-ev20:35:1812
1834179996463,1cyclictest2017351-21nodev-device-ev22:40:1714
1834198995958,1cyclictest0-21swapper/1422:45:186
1834187995655,1cyclictest0-21swapper/1021:40:212
1834153995554,1cyclictest1859175-21nodev-device-ev19:35:210
1834179995452,1cyclictest0-21swapper/821:00:2114
1834157995351,2cyclictest0-21swapper/121:15:181
1834157995351,2cyclictest0-21swapper/121:15:181
1834189995049,1cyclictest1987443-21nodev-device-ev22:05:213
1834157994847,1cyclictest1893393-21nodev-device-ev20:15:201
1834183994645,1cyclictest0-21swapper/923:20:1915
1834163993938,1cyclictest2077205-21nodev-device-ev23:50:199
1834179993736,1cyclictest0-21swapper/821:20:1914
1834153993636,0cyclictest1815123-21kworker/0:2+events21:04:590
1834157993534,1cyclictest0-21swapper/119:25:181
1834193993333,0cyclictest0-21swapper/1223:50:194
1834193993333,0cyclictest0-21swapper/1219:15:244
1834187993231,1cyclictest0-21swapper/1023:30:212
1834153993131,0cyclictest0-21swapper/022:40:190
1834153993131,0cyclictest0-21swapper/019:30:200
1834203993029,1cyclictest0-21swapper/1521:40:457
1834193993030,0cyclictest2004243-21mii-tool22:25:204
1834193993030,0cyclictest0-21swapper/1200:36:044
1834183993017,9cyclictest2054790-21cat23:25:1415
1834153993030,0cyclictest0-21swapper/022:20:270
1834153993030,0cyclictest0-21swapper/021:45:220
1834153993030,0cyclictest0-21swapper/021:14:430
1834153993030,0cyclictest0-21swapper/021:14:430
1834153993029,1cyclictest0-21swapper/020:37:190
183420399292,1cyclictest0-21swapper/1520:25:427
1834193992928,1cyclictest0-21swapper/1222:20:274
1834173992928,1cyclictest0-21swapper/622:47:0812
183416799290,26cyclictest0-21swapper/423:35:1910
183415999292,27cyclictest0-21swapper/223:40:168
183415799290,27cyclictest0-21swapper/123:55:331
1834153992929,0cyclictest0-21swapper/000:35:330
1834203992827,1cyclictest2006-21snmpd23:24:157
183420399280,27cyclictest0-21swapper/1520:44:577
1834198992827,1cyclictest2006-21snmpd20:59:446
1834195992827,1cyclictest0-21swapper/1323:15:035
183419599280,27cyclictest0-21swapper/1322:33:555
183419599280,27cyclictest0-21swapper/1300:36:495
1834193992828,0cyclictest0-21swapper/1221:45:234
1834193992828,0cyclictest0-21swapper/1220:15:014
1834193992828,0cyclictest0-21swapper/1219:30:204
1834193992827,1cyclictest0-21swapper/1200:28:554
183419399280,27cyclictest0-21swapper/1222:55:144
1834189992827,1cyclictest0-21swapper/1120:14:273
1834187992826,1cyclictest2006-21snmpd00:01:432
1834183992827,1cyclictest2006-21snmpd22:32:0415
1834183992820,4cyclictest0-21swapper/923:00:2915
1834183992820,4cyclictest0-21swapper/921:59:0715
183418399280,27cyclictest0-21swapper/922:26:4315
183418399280,26cyclictest2047600-21ntpq23:15:2115
1834179992826,1cyclictest2006-21snmpd23:35:5614
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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