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2026-08-20 - 16:22
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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 Aug 20, 2026 12:46:05)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1259043998748,38cyclictest1371776-21sed10:35:011
1259043997638,19cyclictest1377217-21/usr/sbin/munin10:45:011
1259043997536,38cyclictest1291529-21sendmail-mta08:07:501
1259043997416,39cyclictest1382258-21chrt10:54:471
1259043997416,39cyclictest1324734-21munin-run09:10:001
1259043997234,19cyclictest1367299-21ntpq10:25:181
1259043997111,22cyclictest1926-21sendmail-mta08:57:491
1259043997032,19cyclictest1339859-21memory09:35:191
1259044996950,19cyclictest0-21swapper/209:10:162
1259043996810,19cyclictest0-21swapper/111:06:271
1259044996344,19cyclictest0-21swapper/211:50:152
125904399623,19cyclictest0-21swapper/107:25:121
125904499614,38cyclictest43-21ksoftirqd/210:15:152
125904399613,19cyclictest0-21swapper/107:20:231
1259043996123,19cyclictest1338008-21users09:30:241
1259043995921,38cyclictest1259041-21cyclictest07:18:361
125904399590,40cyclictest1279836-21/usr/sbin/munin07:45:211
1259043995718,39cyclictest101750irq/41-eno2-TxRx-212:24:451
1259043995638,18cyclictest0-21swapper/110:20:151
1259043995637,19cyclictest1310090-21ntpq08:40:221
1259043995632,19cyclictest0-21swapper/109:10:071
1259043995618,19cyclictest1428273-21ntp_states12:15:171
1259043995533,19cyclictest0-21swapper/112:07:291
1259043995533,19cyclictest0-21swapper/107:37:301
125904399550,15cyclictest0-21swapper/111:02:001
1259043995419,15cyclictest0-21swapper/112:26:301
1259043995415,39cyclictest101750irq/41-eno2-TxRx-212:37:001
1259047995314,19cyclictest0-21swapper/509:55:155
1259046995314,39cyclictest0-21swapper/407:50:124
1259043995333,19cyclictest0-21swapper/112:32:331
1259043995316,18cyclictest1420249-21python312:00:211
1259043995315,19cyclictest1402890-21meminfo11:30:171
1259043995314,19cyclictest0-21swapper/107:54:471
1259047995213,19cyclictest0-21swapper/512:30:165
1259043995233,19cyclictest0-21swapper/108:02:131
1259043995231,19cyclictest0-21swapper/112:10:341
1259043995231,19cyclictest0-21swapper/109:59:131
1259043995214,19cyclictest1361936-21ntp_states10:15:191
1259043995214,19cyclictest1299222-21find08:20:211
1259043995213,19cyclictest0-21swapper/111:19:311
1259043995212,39cyclictest1306708-21smartctl08:35:151
1259043995212,39cyclictest0-21swapper/109:53:161
1259044995113,38cyclictest0-21swapper/210:50:152
1259043995133,18cyclictest0-21swapper/111:38:001
1259043995133,18cyclictest0-21swapper/111:12:221
1259043995132,19cyclictest0-21swapper/111:53:451
1259043995132,19cyclictest0-21swapper/111:43:571
1259043995132,19cyclictest0-21swapper/110:37:421
1259043995131,19cyclictest0-21swapper/110:01:541
1259047995031,19cyclictest0-21swapper/510:50:155
1259043995032,18cyclictest331ktimers/109:04:351
1259043995032,18cyclictest0-21swapper/110:13:421
1259043995032,18cyclictest0-21swapper/109:41:341
1259043995032,18cyclictest0-21swapper/108:11:511
1259043995032,18cyclictest0-21swapper/107:42:441
1259043995031,19cyclictest0-21swapper/110:49:021
1259043995031,19cyclictest0-21swapper/110:08:371
1259043995010,39cyclictest0-21swapper/111:25:171
1259042995012,38cyclictest0-21swapper/010:35:180
1259047994930,19cyclictest681rcuc/512:05:175
1259043994931,18cyclictest0-21swapper/111:57:501
1259043994931,18cyclictest0-21swapper/111:47:381
1259043994931,18cyclictest0-21swapper/111:24:541
1259043994931,18cyclictest0-21swapper/108:34:061
1259043994931,18cyclictest0-21swapper/108:16:381
1259043994931,18cyclictest0-21swapper/107:32:511
1259043994930,19cyclictest0-21swapper/107:13:371
1259043994911,19cyclictest1385409-21munin-run11:00:011
1259043994911,19cyclictest0-21swapper/108:47:071
1259047994810,38cyclictest0-21swapper/512:25:155
1259046994811,18cyclictest0-21swapper/412:25:164
1259043994830,18cyclictest0-21swapper/109:49:331
1259043994829,19cyclictest0-21swapper/108:54:341
1259043994810,19cyclictest1301829-21ntpq08:25:171
125904799479,19cyclictest0-21swapper/508:10:155
125904599478,39cyclictest0-21swapper/312:30:153
125904399478,39cyclictest0-21swapper/109:25:171
125904299479,19cyclictest0-21swapper/007:25:160
1259048994626,19cyclictest0-21swapper/610:45:156
125904699458,18cyclictest0-21swapper/408:30:174
1259043994527,18cyclictest0-21swapper/109:15:181
125904799446,19cyclictest0-21swapper/509:20:155
125904699445,39cyclictest0-21swapper/409:05:164
125904499446,19cyclictest0-21swapper/207:55:152
1259044994426,18cyclictest411rcuc/211:55:142
125904599434,39cyclictest0-21swapper/310:20:163
125904999423,39cyclictest0-21swapper/710:00:167
125904499422,39cyclictest0-21swapper/207:15:162
1259043994224,18cyclictest0-21swapper/109:23:491
125904299424,19cyclictest0-21swapper/010:10:150
1259043994123,18cyclictest0-21swapper/107:55:541
125904299413,19cyclictest0-21swapper/012:00:150
125904799390,19cyclictest0-21swapper/508:35:175
125904699390,39cyclictest0-21swapper/409:25:154
125904299390,20cyclictest0-21swapper/008:40:170
125904299390,15cyclictest0-21swapper/012:20:150
1259049993837,0cyclictest0-21swapper/711:20:177
125904699380,19cyclictest0-21swapper/408:20:154
125904999371,36cyclictest0-21swapper/707:32:107
1259047993737,0cyclictest1327198-21kworker/5:0+events09:42:495
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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