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2025-09-17 - 00:43
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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 Tue Sep 16, 2025 00:46:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
15498132361314,15sleep50-21swapper/519:05:4411
15500662357312,35sleep150-21swapper/1519:09:077
15498432353310,14sleep110-21swapper/1119:06:053
15498412351310,15sleep90-21swapper/919:06:0415
15499002350341,6sleep70-21swapper/719:06:5013
15500702349339,6sleep10-21swapper/119:09:091
15501142346324,14sleep80-21swapper/819:09:4814
15498142346323,15sleep60-21swapper/619:05:4512
15500472343320,15sleep130-21swapper/1319:08:495
15499682343332,7sleep00-21swapper/019:07:480
15499322343320,15sleep40-21swapper/419:07:1910
15501092339315,15sleep30-21swapper/319:09:439
15499612339316,15sleep100-21swapper/1019:07:422
15498632337315,14sleep120-21swapper/1219:06:234
15498842336313,15sleep140-21swapper/1419:06:416
15498102336313,15sleep20-21swapper/219:05:408
155053699216216,0cyclictest0-21swapper/300:20:189
155053699213213,0cyclictest0-21swapper/323:05:209
155052799195194,1cyclictest1614026-21nodev-device-ev20:20:170
155055399191190,1cyclictest0-21swapper/820:20:1714
155056399136135,1cyclictest1819334-21nodev-device-ev00:20:183
155056399133132,1cyclictest1755181-21nodev-device-ev23:05:203
1550548991040,103cyclictest0-21swapper/700:10:2113
1550533991030,1cyclictest0-21swapper/222:45:188
1550529999796,1cyclictest0-21swapper/121:25:181
155054399960,1cyclictest0-21swapper/520:40:1811
1550573999392,1cyclictest1639685-21nodev-device-ev20:50:226
1550536999392,1cyclictest0-21swapper/320:00:199
1550575998988,1cyclictest1789383-21nodev-device-ev23:45:177
1550563998988,1cyclictest0-21swapper/1100:00:193
1550573998786,1cyclictest0-21swapper/1420:05:216
1550548998483,1cyclictest1733791-21nodev-device-ev22:40:1913
1550545997877,1cyclictest1720947-21nodev-device-ev22:25:1812
1550575997271,1cyclictest1725236-21nodev-device-ev22:30:187
1550545997270,1cyclictest0-21swapper/620:50:2212
1550533997170,1cyclictest1605448-21daemon-init20:10:218
1550575996968,1cyclictest0-21swapper/1523:00:197
1550538996867,1cyclictest1785096-21nodev-device-ev23:40:1910
1550545996664,1cyclictest1601191-21nodev-device-ev20:05:2112
1550543996463,1cyclictest0-21swapper/523:35:2011
1550533996362,1cyclictest1827884-21nodev-device-ev00:30:188
1550533995453,1cyclictest1823593-21nodev-device-ev00:25:178
1550568995352,1cyclictest1695285-21nodev-device-ev21:55:225
1550555995251,1cyclictest1669630-21nodev-device-ev21:25:1815
1550533995150,1cyclictest0-21swapper/222:10:198
1550527995049,1cyclictest1609739-21nodev-device-ev20:15:180
1550548994948,1cyclictest0-21swapper/723:45:1713
1550563994746,1cyclictest1793644-21nodev-device-ev23:50:173
1550553994746,1cyclictest0-21swapper/820:15:1814
1550529994443,1cyclictest1686738-21nodev-device-ev21:45:181
1550529994443,1cyclictest1686738-21nodev-device-ev21:45:181
1550573994342,1cyclictest0-21swapper/1422:05:176
155054599427,25cyclictest0-21swapper/621:07:4012
1550558994140,1cyclictest0-21swapper/1021:35:172
1550536994140,1cyclictest0-21swapper/319:45:189
1550536994039,1cyclictest0-21swapper/321:30:199
1550558993531,2cyclictest1807696-21kworker/u32:0+flush-259:000:30:202
1550548993231,1cyclictest0-21swapper/722:30:1813
155054599317,11cyclictest0-21swapper/623:41:2612
155054599317,11cyclictest0-21swapper/623:08:2912
1550533993130,1cyclictest0-21swapper/219:10:178
155054599307,10cyclictest0-21swapper/622:35:3212
155054599307,10cyclictest0-21swapper/620:56:4112
155054599307,10cyclictest0-21swapper/620:23:4412
155054599307,10cyclictest0-21swapper/619:50:4712
155054599307,10cyclictest0-21swapper/600:36:2112
155054599306,11cyclictest0-21swapper/622:46:3112
155053899300,27cyclictest0-21swapper/420:35:1610
1550548992928,1cyclictest1750862-21nodev-device-ev23:00:1913
1550527992927,2cyclictest2054-21snmpd19:10:080
155057399280,27cyclictest0-21swapper/1422:51:146
155057399280,27cyclictest0-21swapper/1420:14:466
155057399280,1cyclictest0-21swapper/1422:00:126
1550568992827,1cyclictest2054-21snmpd23:37:065
1550568992827,1cyclictest0-21swapper/1321:40:195
1550565992827,1cyclictest2054-21snmpd21:42:454
1550565992827,1cyclictest0-21swapper/1220:55:174
155056599280,27cyclictest0-21swapper/1221:01:324
155056599280,27cyclictest0-21swapper/1220:13:554
155056599280,27cyclictest0-21swapper/1219:52:274
1550558992823,2cyclictest0-21swapper/1019:25:172
1550555992826,1cyclictest2054-21snmpd22:26:5515
1550555992826,1cyclictest1618304-21kworker/9:2+events23:32:4015
1550555992826,1cyclictest1618304-21kworker/9:2+events21:50:2015
1550555992826,1cyclictest1618304-21kworker/9:2+events21:50:2015
155055599280,27cyclictest0-21swapper/920:30:2815
155054899280,27cyclictest0-21swapper/721:02:5613
155054599280,27cyclictest0-21swapper/623:57:0012
155054599280,27cyclictest0-21swapper/619:59:3012
1550543992827,1cyclictest2054-21snmpd23:44:1311
155054399280,27cyclictest0-21swapper/520:20:2811
155054399280,27cyclictest0-21swapper/520:19:2811
155053899280,27cyclictest0-21swapper/420:00:5410
1550529992827,1cyclictest2054-21snmpd20:31:461
155052999280,27cyclictest0-21swapper/120:27:101
155052799280,27cyclictest0-21swapper/020:37:590
1550575992726,1cyclictest2054-21snmpd21:24:147
1550573992726,1cyclictest2054-21snmpd19:14:236
1550573992726,1cyclictest0-21swapper/1419:32:036
155057399270,27cyclictest0-21swapper/1419:15:166
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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