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2026-03-13 - 00:33
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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 rackfslot7.osadl.org (updated Thu Mar 12, 2026 12:46:07)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
110807199940,15cyclictest0-21swapper/409:45:154
1108067998911,19cyclictest0-21swapper/012:00:140
1108073997638,19cyclictest781ktimers/610:19:366
1108073997618,39cyclictest1282730-21ntp_states12:25:196
1108073997435,38cyclictest1187987-21kworker/u32:2+events_unbound10:30:126
1108073997214,19cyclictest0-21swapper/612:15:546
1108073997210,39cyclictest1136635-21/usr/sbin/munin08:00:146
110807399708,59cyclictest0-21swapper/610:29:296
110807399699,40cyclictest1113423-21grep07:19:596
110807399687,39cyclictest1086-21runrttasks08:40:486
1108073996828,39cyclictest0-21swapper/609:20:426
1108073996826,39cyclictest1086-21runrttasks09:00:516
110807399678,39cyclictest781ktimers/611:10:356
1108073996730,18cyclictest0-21swapper/608:05:166
110807399666,19cyclictest0-21swapper/608:39:386
110807399663,40cyclictest1150105-21latency_hist08:25:026
110807399646,39cyclictest1279704-21cat12:20:186
110807399646,39cyclictest1279704-21cat12:20:176
1108073996426,19cyclictest1131824-21sh07:50:196
1108073996426,18cyclictest0-21swapper/611:30:586
1108073996344,19cyclictest0-21swapper/607:45:166
1108073996222,39cyclictest1285207-21if_eno612:30:166
110807399613,39cyclictest1288756-21head12:35:196
110807399612,40cyclictest1207324-21munin-plugin-st10:10:026
1108073996123,18cyclictest0-21swapper/609:34:026
1108073996021,38cyclictest1196660-21aten2.4_rfpower09:50:126
1108073995818,20cyclictest1265051-21/usr/sbin/munin11:55:166
110807399580,39cyclictest1150890-21awk08:25:156
1108073995738,19cyclictest781ktimers/609:13:026
1108073995738,18cyclictest877-21mta-sts-daemon07:11:006
1108073995718,20cyclictest1122308-21/usr/sbin/munin07:35:246
1108073995717,39cyclictest1271560-21/usr/sbin/munin12:05:186
1108073995517,19cyclictest1086-21runrttasks08:30:446
1108073995419,15cyclictest0-21swapper/610:20:166
1108073995414,39cyclictest0-21swapper/611:17:506
1108073995414,39cyclictest0-21swapper/609:59:086
110807399540,15cyclictest0-21swapper/612:00:106
110807399540,15cyclictest0-21swapper/611:50:126
1108071995415,20cyclictest0-21swapper/411:10:154
1108073995315,19cyclictest781ktimers/607:32:526
1108073995314,39cyclictest0-21swapper/611:29:466
1108073995314,39cyclictest0-21swapper/607:23:246
1108073995313,39cyclictest0-21swapper/612:12:096
1108073995313,39cyclictest0-21swapper/609:27:176
1108070995314,19cyclictest0-21swapper/307:40:153
1108073995234,18cyclictest1195003-21sshd09:45:176
1108073995233,19cyclictest0-21swapper/610:51:086
1108073995231,0cyclictest781ktimers/608:17:196
1108073995214,19cyclictest0-21swapper/608:55:016
1108073995214,19cyclictest0-21swapper/608:45:186
1108073995213,39cyclictest0-21swapper/609:42:066
1108073995212,39cyclictest0-21swapper/611:06:026
1108073995212,19cyclictest1258167-21ntp_states11:40:206
1108071995215,18cyclictest0-21swapper/411:05:154
1108071995213,39cyclictest0-21swapper/412:10:154
1108067995214,19cyclictest0-21swapper/009:40:150
1108073995133,18cyclictest0-21swapper/610:43:126
1108073995133,18cyclictest0-21swapper/610:11:086
1108073995133,18cyclictest0-21swapper/608:56:206
1108073995133,18cyclictest0-21swapper/607:55:406
1108073995131,19cyclictest0-21swapper/610:59:126
1108073995112,39cyclictest0-21swapper/611:45:536
1108071995112,38cyclictest0-21swapper/411:45:144
1108070995111,39cyclictest0-21swapper/309:50:163
1108073995032,18cyclictest0-21swapper/611:24:596
1108073995032,18cyclictest0-21swapper/610:45:116
1108073995032,18cyclictest0-21swapper/609:17:076
1108073995031,19cyclictest0-21swapper/607:25:166
1108073994931,18cyclictest0-21swapper/611:39:236
1108073994931,18cyclictest0-21swapper/607:42:156
1108073994930,19cyclictest0-21swapper/609:08:246
1108073994910,19cyclictest0-21swapper/610:35:596
1108073994830,18cyclictest0-21swapper/608:10:126
1108071994810,19cyclictest0-21swapper/410:35:154
1108073994729,18cyclictest0-21swapper/610:00:476
1108073994710,18cyclictest0-21swapper/607:10:016
110807199479,19cyclictest0-21swapper/411:40:154
1108073994628,18cyclictest0-21swapper/611:00:596
1108073994627,19cyclictest0-21swapper/609:35:116
1108071994324,19cyclictest872-21mta-sts-daemon08:25:164
110807599423,20cyclictest0-21swapper/712:15:147
1108071994223,19cyclictest0-21swapper/411:50:154
110806799402,19cyclictest0-21swapper/010:35:150
1108069993937,2cyclictest1198901-21kworker/2:2+events10:10:022
110806799390,20cyclictest0-21swapper/012:05:160
110806799390,20cyclictest0-21swapper/011:10:150
1108070993837,1cyclictest1228103-21ntpq10:45:193
1108070993719,18cyclictest0-21swapper/309:30:143
1108070993718,19cyclictest0-21swapper/308:50:153
1108069993736,1cyclictest1105198-21kworker/2:1+events08:02:082
110806799370,17cyclictest0-21swapper/008:40:150
1108071993636,0cyclictest1131812-21ntp_states07:50:204
110806799360,17cyclictest0-21swapper/007:50:140
1108071993516,19cyclictest601ktimers/407:25:174
110807099350,35cyclictest0-21swapper/310:55:153
110807099350,35cyclictest0-21swapper/308:30:133
110806999350,15cyclictest0-21swapper/208:55:162
110806999350,15cyclictest0-21swapper/207:45:152
110806799350,34cyclictest0-21swapper/011:55:160
110806799350,16cyclictest0-21swapper/009:15:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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