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2026-04-27 - 20:05
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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 Mon Apr 27, 2026 12:46:08)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2936694991289,119cyclictest0-21swapper/710:10:157
293668799791,59cyclictest0-21swapper/210:10:152
2936689997718,58cyclictest2995011-21stty08:55:154
2936689997518,38cyclictest2984309-21fschecks_time08:35:144
2936689997415,59cyclictest236199-21snmpd07:10:364
2936689997415,39cyclictest236199-21snmpd11:59:534
2936689997336,18cyclictest362-21jbd2/sda2-809:17:484
2936689997213,58cyclictest0-21swapper/410:50:014
2936689997113,39cyclictest2965289-21basename08:00:154
2936689996951,18cyclictest0-21swapper/412:00:204
2936689996729,38cyclictest0-21swapper/410:27:064
2936689996526,39cyclictest3024652-21chrt09:49:344
293668999646,19cyclictest0-21swapper/411:30:154
293668999634,20cyclictest0-21swapper/409:20:174
2936689996222,39cyclictest362-21jbd2/sda2-811:09:474
2936689996124,18cyclictest61-21ksoftirqd/412:15:114
2936689996123,38cyclictest0-21swapper/408:30:324
2936689996123,38cyclictest0-21swapper/408:15:064
293668999591,39cyclictest236199-21snmpd08:12:454
293668999590,40cyclictest2993760-21unixbench_singl08:50:264
2936693995820,19cyclictest0-21swapper/607:40:166
2936689995719,38cyclictest0-21swapper/408:40:184
293668999570,38cyclictest2975994-21expr08:20:154
2936689995637,19cyclictest876-21mta-sts-daemon10:56:254
2936689995618,38cyclictest362-21jbd2/sda2-808:05:484
2936689995618,19cyclictest2954969-21ntp_states07:40:204
2936689995537,18cyclictest601ktimers/409:55:384
2936689995419,35cyclictest0-21swapper/411:20:254
2936689995419,35cyclictest0-21swapper/410:19:234
2936689995419,35cyclictest0-21swapper/410:06:254
2936689995416,19cyclictest362-21jbd2/sda2-809:09:484
2936689995416,19cyclictest3037812-21/usr/sbin/munin10:10:224
2936689995415,39cyclictest0-21swapper/409:39:184
293668999540,35cyclictest3092753-21ntpq11:50:204
2936694995316,19cyclictest30750irq/60-ahci[0000:00:07.0]11:35:187
2936689995319,34cyclictest0-21swapper/411:05:024
2936689995314,39cyclictest0-21swapper/412:36:564
2936689995314,39cyclictest0-21swapper/412:36:554
2936689995314,39cyclictest0-21swapper/412:27:244
2936689995314,39cyclictest0-21swapper/412:20:434
2936689995314,39cyclictest0-21swapper/411:40:414
2936689995314,39cyclictest0-21swapper/411:35:484
2936689995314,39cyclictest0-21swapper/411:27:024
2936689995314,39cyclictest0-21swapper/410:41:174
2936689995314,39cyclictest0-21swapper/409:28:364
2936689995314,39cyclictest0-21swapper/409:11:184
2936689995314,39cyclictest0-21swapper/407:50:334
2936689995314,39cyclictest0-21swapper/407:39:084
2936689995314,39cyclictest0-21swapper/407:27:554
2936689995314,39cyclictest0-21swapper/407:24:484
2936689995314,19cyclictest0-21swapper/410:02:384
2936689995233,19cyclictest0-21swapper/412:09:274
2936689995233,19cyclictest0-21swapper/410:35:444
2936689995233,19cyclictest0-21swapper/407:32:004
2936689995213,39cyclictest0-21swapper/411:17:434
2936689995213,39cyclictest0-21swapper/410:54:264
2936689995213,39cyclictest0-21swapper/410:22:504
2936689995213,39cyclictest0-21swapper/409:54:534
2936689995213,39cyclictest0-21swapper/409:33:534
2936689995213,39cyclictest0-21swapper/407:58:464
2936689995213,39cyclictest0-21swapper/407:19:154
2936687995234,18cyclictest0-21swapper/207:15:162
2936686995214,19cyclictest0-21swapper/111:50:161
2936686995214,19cyclictest0-21swapper/109:10:161
2936691995112,19cyclictest0-21swapper/511:00:165
2936689995133,18cyclictest0-21swapper/410:31:484
2936689995132,19cyclictest0-21swapper/407:49:024
2936689995112,39cyclictest362-21jbd2/sda2-812:13:474
2936689995111,39cyclictest0-21swapper/412:30:144
2936686995113,19cyclictest0-21swapper/112:30:141
2936693995012,19cyclictest0-21swapper/608:20:166
2936691995012,19cyclictest0-21swapper/508:25:175
2936689995031,19cyclictest0-21swapper/411:46:034
2936689995011,19cyclictest0-21swapper/408:48:074
2936688995012,19cyclictest0-21swapper/309:20:163
2936687995012,19cyclictest0-21swapper/211:00:162
2936693994911,19cyclictest0-21swapper/610:20:156
293668999499,19cyclictest0-21swapper/408:29:224
2936689994911,19cyclictest3019722-21apt-get09:40:134
2936685994911,19cyclictest0-21swapper/008:30:160
2936689994829,19cyclictest0-21swapper/409:00:124
2936685994830,0cyclictest0-21swapper/008:20:160
293668699468,19cyclictest0-21swapper/109:55:141
293668699468,19cyclictest0-21swapper/109:20:171
293668599455,39cyclictest0-21swapper/010:15:150
2936689994425,19cyclictest0-21swapper/411:11:234
2936688994425,19cyclictest2936684-21cyclictest09:35:163
293669199434,19cyclictest0-21swapper/510:50:155
293668799435,19cyclictest0-21swapper/212:05:152
293668599435,19cyclictest0-21swapper/011:10:140
293669399424,19cyclictest0-21swapper/609:05:166
293668599424,38cyclictest0-21swapper/007:15:160
293669499412,39cyclictest0-21swapper/709:20:177
293669399414,18cyclictest771rcuc/608:15:176
293668899413,19cyclictest0-21swapper/308:50:183
2936688994015,20cyclictest0-21swapper/308:10:153
293668799401,39cyclictest0-21swapper/207:35:162
293669399391,19cyclictest0-21swapper/607:50:156
293668799390,39cyclictest0-21swapper/212:10:212
2936685993920,19cyclictest0-21swapper/008:40:170
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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