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2026-04-28 - 16:20
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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 Tue Apr 28, 2026 00:46:07)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1426693997332,20cyclictest0-21swapper/321:00:543
1426693997312,39cyclictest1498538-21systemctl21:20:013
1426693997113,39cyclictest1442715-21cat19:35:233
1426693996910,39cyclictest1485767-21hddtemp_smartct20:55:153
1426693996827,20cyclictest0-21swapper/323:54:173
1426693996727,19cyclictest0-21swapper/319:20:373
1426693996726,20cyclictest0-21swapper/323:23:493
1426693996424,19cyclictest0-21swapper/323:46:133
1426693996424,19cyclictest0-21swapper/300:20:323
1426693996324,19cyclictest0-21swapper/300:18:283
1426693996122,19cyclictest0-21swapper/319:28:223
1426694996041,19cyclictest0-21swapper/423:25:174
1426693995817,39cyclictest1588788-21awk00:05:003
1426693995614,40cyclictest0-21swapper/319:41:593
1426690995637,19cyclictest0-21swapper/023:25:160
1426696995536,18cyclictest872-21mta-sts-daemon21:05:166
1426693995536,19cyclictest511ktimers/322:16:393
1426693995517,18cyclictest1552158-21ntpq22:55:213
1426693995514,19cyclictest0-21swapper/320:36:393
142669399550,16cyclictest1601896-21ntpq00:25:203
1426693995415,39cyclictest0-21swapper/300:08:483
1426693995414,38cyclictest1573585-21if_err_eno223:35:173
1426693995414,20cyclictest0-21swapper/320:18:553
1426693995414,19cyclictest0-21swapper/323:15:073
1426693995351,0cyclictest1535014-21df_inode22:25:143
1426693995314,19cyclictest0-21swapper/320:20:073
1426693995313,39cyclictest1500203-21wc21:20:213
1426693995313,39cyclictest1500203-21wc21:20:213
1426693995313,39cyclictest0-21swapper/319:34:433
1426693995313,21cyclictest1560250-21collect223:10:193
1426693995312,39cyclictest0-21swapper/322:24:473
1426694995214,19cyclictest0-21swapper/419:20:154
1426693995214,19cyclictest1605902-21munin-run00:35:003
1426693995213,39cyclictest0-21swapper/321:10:173
1426693995213,39cyclictest0-21swapper/319:57:413
1426693995213,39cyclictest0-21swapper/319:10:393
1426693995149,0cyclictest1546477-21memory22:45:213
1426693995112,39cyclictest0-21swapper/321:59:413
1426693995112,39cyclictest0-21swapper/320:31:233
1426693995112,39cyclictest0-21swapper/319:48:013
1426693995112,20cyclictest0-21swapper/323:08:053
1426693995032,18cyclictest0-21swapper/321:41:563
1426693995012,19cyclictest1492192-21find21:05:233
1426693995011,39cyclictest0-21swapper/320:40:593
1426693995010,19cyclictest0-21swapper/320:30:003
1426694994931,18cyclictest0-21swapper/420:00:174
1426693994930,19cyclictest0-21swapper/320:05:393
1426693994910,39cyclictest0-21swapper/320:54:193
1426693994910,19cyclictest0-21swapper/322:35:513
1426692994910,39cyclictest0-21swapper/200:15:182
1426690994911,19cyclictest0-21swapper/023:45:170
1426690994911,19cyclictest0-21swapper/021:50:170
1426693994829,19cyclictest0-21swapper/322:04:353
142669699457,19cyclictest0-21swapper/600:10:166
142669099446,38cyclictest0-21swapper/019:10:170
142669499412,39cyclictest0-21swapper/423:05:164
142669099413,19cyclictest0-21swapper/022:20:160
142669299402,19cyclictest0-21swapper/220:00:162
142669299402,19cyclictest0-21swapper/219:45:162
142669299401,19cyclictest0-21swapper/222:00:162
142669099402,19cyclictest0-21swapper/019:20:150
142669499391,19cyclictest0-21swapper/422:25:154
1426693993919,20cyclictest871-21mta-sts-daemon00:10:473
142669399390,39cyclictest236199-21snmpd22:15:013
142669399390,39cyclictest1517414-21latency_hist21:55:013
142669399390,39cyclictest0-21swapper/300:39:103
142669399390,19cyclictest0-21swapper/323:03:273
142669099390,39cyclictest0-21swapper/022:05:150
1426694993820,0cyclictest0-21swapper/400:25:164
1426693993815,19cyclictest1457408-21munin-run20:05:013
142669399380,38cyclictest0-21swapper/322:43:513
142669399380,37cyclictest0-21swapper/320:46:033
142669399380,19cyclictest1450306-21ntpq19:50:203
1426692993838,0cyclictest0-21swapper/220:20:012
142669099380,38cyclictest0-21swapper/023:55:140
142669099380,19cyclictest0-21swapper/020:55:150
1426697993737,0cyclictest1423606-21kworker/7:0+events23:56:057
1426697993737,0cyclictest1423606-21kworker/7:0+events21:33:337
1426697993737,0cyclictest1423606-21kworker/7:0+events20:44:057
1426697993736,0cyclictest1423606-21kworker/7:0+events23:45:537
1426697993736,0cyclictest1423606-21kworker/7:0+events22:41:497
142669699370,18cyclictest0-21swapper/621:35:156
142669499370,37cyclictest0-21swapper/419:50:164
1426693993718,19cyclictest1576754-21ntpq23:40:193
142669399370,37cyclictest0-21swapper/323:27:233
142669399370,34cyclictest0-21swapper/321:39:553
142669399370,34cyclictest0-21swapper/320:13:553
142669399370,34cyclictest0-21swapper/319:19:393
142669399370,17cyclictest0-21swapper/322:06:593
142669399370,14cyclictest0-21swapper/322:31:393
1426697993636,0cyclictest1583346-21kworker/7:1+events00:19:567
142669499360,17cyclictest0-21swapper/421:50:164
1426693993617,19cyclictest0-21swapper/321:34:193
142669399360,36cyclictest0-21swapper/321:26:313
142669399360,35cyclictest0-21swapper/322:52:083
142669099360,17cyclictest0-21swapper/000:30:160
1426697993535,0cyclictest1583346-21kworker/7:1+events00:23:007
1426697993535,0cyclictest1423606-21kworker/7:0+events23:53:017
1426697993535,0cyclictest1423606-21kworker/7:0+events23:18:587
142669699350,15cyclictest0-21swapper/619:25:166
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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