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2025-12-11 - 04:24
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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 Dec 11, 2025 00:46:14)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
143651799760,57cyclictest1608072-21ntpq00:10:201
1436517997134,19cyclictest1-21systemd19:20:021
1436517996930,38cyclictest1614979-21latency_hist00:25:011
1436517996910,39cyclictest1539422-21fw_packets22:10:161
1436517996829,38cyclictest1446835-21ld19:25:221
1436519996730,18cyclictest501rcuc/323:00:163
1436517996627,39cyclictest1467744-21cat20:05:011
1436517996143,18cyclictest0-21swapper/122:00:201
1436517995857,1cyclictest877-21mta-sts-daemon23:29:321
1436517995734,0cyclictest1-21systemd20:55:001
1436517995733,19cyclictest1598362-21cpuspeed_turbos23:55:121
1436517995713,20cyclictest1462144-21/usr/sbin/munin19:55:011
143651799570,37cyclictest0-21swapper/120:18:231
1436517995637,19cyclictest1529700-21taskset21:52:161
1436517995517,19cyclictest1455391-21/usr/sbin/munin19:40:231
1436517995431,0cyclictest0-21swapper/100:15:201
1436517995416,19cyclictest1439100-21chrt19:13:391
1436518995314,19cyclictest0-21swapper/222:50:172
1436517995331,0cyclictest0-21swapper/120:35:011
1436517995331,0cyclictest0-21swapper/120:35:011
1436517995331,0cyclictest0-21swapper/120:25:211
1436517995314,3cyclictest331ktimers/100:07:261
1436517995314,39cyclictest0-21swapper/121:43:281
1436517995314,38cyclictest0-21swapper/120:46:331
1436517995314,19cyclictest0-21swapper/122:57:081
1436517995314,19cyclictest0-21swapper/119:58:291
1436517995313,39cyclictest0-21swapper/122:05:031
1436517995214,19cyclictest0-21swapper/121:14:241
1436517995213,39cyclictest0-21swapper/122:17:531
1436517995213,39cyclictest0-21swapper/121:56:011
1436517995213,39cyclictest0-21swapper/121:38:521
1436517995213,39cyclictest0-21swapper/120:09:011
1436517995213,39cyclictest0-21swapper/119:20:411
1436518995113,19cyclictest0-21swapper/223:25:162
1436517995113,19cyclictest0-21swapper/122:38:121
1436517995112,39cyclictest0-21swapper/100:38:191
1436517995111,21cyclictest1473340-21sed20:15:011
1436523995012,19cyclictest0-21swapper/520:10:165
1436519995012,19cyclictest0-21swapper/300:35:183
1436517995032,18cyclictest1-21systemd23:55:001
1436517995029,0cyclictest0-21swapper/121:30:201
1436517995011,39cyclictest0-21swapper/121:21:171
1436524994911,19cyclictest0-21swapper/621:00:176
1436519994911,19cyclictest0-21swapper/319:50:153
143651899499,39cyclictest0-21swapper/220:05:172
1436517994930,19cyclictest1-21systemd21:20:001
1436517994910,20cyclictest1453746-21systemctl19:40:021
1436522994810,19cyclictest0-21swapper/420:15:164
1436518994811,18cyclictest0-21swapper/221:30:182
143651799489,39cyclictest1088-21runrttasks23:11:581
1436517994828,19cyclictest1436515-21cyclictest21:08:301
1436517994812,18cyclictest1436698-21munin-run19:10:031
1436524994728,19cyclictest0-21swapper/623:25:176
143651999479,38cyclictest0-21swapper/300:30:163
1436519994729,18cyclictest876-21mta-sts-daemon00:05:193
143651799478,39cyclictest0-21swapper/122:23:281
143651799475,4cyclictest1088-21runrttasks19:33:211
1436517994723,0cyclictest0-21swapper/120:35:051
143651899467,39cyclictest0-21swapper/200:20:172
143651799468,19cyclictest0-21swapper/119:50:001
1436517994536,9cyclictest0-21swapper/123:35:241
1436517994527,18cyclictest101950irq/41-eno2-TxRx-200:05:001
143651999446,19cyclictest0-21swapper/323:50:193
143651799445,2cyclictest0-21swapper/123:09:121
1436517994425,19cyclictest1488982-21ntpq20:40:191
1436517994425,19cyclictest1488982-21ntpq20:40:191
143652299435,19cyclictest0-21swapper/422:10:174
143651899435,19cyclictest0-21swapper/221:15:172
143651799436,37cyclictest0-21swapper/123:22:531
1436517994334,9cyclictest0-21swapper/123:02:401
1436517994322,19cyclictest1436515-21cyclictest23:49:491
1436517994322,0cyclictest0-21swapper/121:26:321
1436517994322,0cyclictest0-21swapper/100:25:451
1436517994322,0cyclictest0-21swapper/100:25:441
1436517994321,19cyclictest0-21swapper/120:24:141
143652499424,19cyclictest0-21swapper/600:30:166
143651999423,20cyclictest871-21mta-sts-daemon20:05:163
143651899424,19cyclictest0-21swapper/221:35:172
143651799423,3cyclictest0-21swapper/123:15:081
143651799423,39cyclictest0-21swapper/123:30:261
1436519994021,19cyclictest52-21ksoftirqd/320:45:163
143651899402,19cyclictest0-21swapper/221:25:172
1436517994031,9cyclictest0-21swapper/122:52:441
1436517994021,19cyclictest0-21swapper/122:32:101
1436524993939,0cyclictest0-21swapper/619:52:056
1436523993920,19cyclictest1433267-21kworker/u32:3+events_unbound20:07:345
1436522993921,18cyclictest0-21swapper/419:30:174
143651999391,19cyclictest52-21ksoftirqd/320:55:183
143651999391,19cyclictest0-21swapper/323:40:173
143651999391,19cyclictest0-21swapper/322:25:173
143651899392,4cyclictest1573018-21diskstats23:10:142
143651799392,2cyclictest0-21swapper/123:42:521
143651799390,39cyclictest0-21swapper/100:34:181
143651999380,38cyclictest0-21swapper/319:25:173
143651799382,1cyclictest90550irq/66-eno6-TxRx-422:45:141
1436517993819,18cyclictest0-21swapper/121:00:171
1436517993818,19cyclictest1-21systemd22:30:001
143651799380,38cyclictest0-21swapper/120:56:581
1436523993718,0cyclictest0-21swapper/520:45:165
1436519993718,19cyclictest0-21swapper/319:45:193
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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