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2025-11-22 - 10:54
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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 Sat Nov 22, 2025 00:46:07)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2240255999033,38cyclictest778-21dbus-daemon23:00:234
2240255997335,38cyclictest2390686-21systemd-run23:35:014
2240255997112,59cyclictest2289123-21/usr/sbin/munin20:35:244
2240255996931,38cyclictest2307577-21ntpq21:05:194
2240255996830,38cyclictest0-21swapper/422:16:574
2240255996527,38cyclictest0-21swapper/423:17:104
224025599610,59cyclictest2311688-21systemctl21:15:024
2240255995819,39cyclictest0-21swapper/420:04:294
224025599580,39cyclictest2240605-21apt-get19:10:104
2240255995719,38cyclictest0-21swapper/400:00:284
2240255995618,38cyclictest0-21swapper/422:06:254
2240255995618,19cyclictest2283414-21sed20:25:024
2240255995616,39cyclictest2408356-21tail00:05:154
2240255995518,37cyclictest0-21swapper/422:58:144
2240255995517,19cyclictest2414420-21meminfo00:15:194
2240255995516,20cyclictest2363033-21cut22:45:184
224025599550,55cyclictest0-21swapper/400:25:174
2240255995416,19cyclictest2276135-21ntpq20:10:184
2240255995416,19cyclictest2248946-21munin-run19:25:014
2240255995415,20cyclictest1089-21snmpd00:24:564
224025599540,54cyclictest0-21swapper/422:27:034
224025599540,54cyclictest0-21swapper/421:43:354
224025599540,54cyclictest0-21swapper/420:48:244
224025599540,54cyclictest0-21swapper/420:18:354
224025599540,54cyclictest0-21swapper/419:52:394
224025599540,54cyclictest0-21swapper/400:32:324
2240257995314,39cyclictest0-21swapper/619:30:186
2240256995314,20cyclictest0-21swapper/523:35:165
2240255995318,35cyclictest0-21swapper/421:50:154
2240255995315,19cyclictest2321403-21meminfo21:30:194
2240255995315,19cyclictest2318601-21memory21:25:194
2240255995314,39cyclictest0-21swapper/423:55:274
2240255995314,39cyclictest0-21swapper/423:48:004
2240255995314,39cyclictest0-21swapper/423:37:444
2240255995314,39cyclictest0-21swapper/423:10:554
2240255995314,39cyclictest0-21swapper/422:53:194
2240255995314,39cyclictest0-21swapper/422:44:274
2240255995314,39cyclictest0-21swapper/422:10:024
2240255995314,39cyclictest0-21swapper/421:59:354
2240255995314,39cyclictest0-21swapper/421:48:364
2240255995314,39cyclictest0-21swapper/421:36:204
2240255995314,39cyclictest0-21swapper/421:18:234
2240255995314,39cyclictest0-21swapper/420:56:504
2240255995314,39cyclictest0-21swapper/420:40:354
2240255995314,39cyclictest0-21swapper/420:27:474
2240255995314,39cyclictest0-21swapper/419:59:024
2240255995314,39cyclictest0-21swapper/419:40:214
2240255995314,39cyclictest0-21swapper/419:26:244
2240255995314,39cyclictest0-21swapper/419:16:194
2240255995314,39cyclictest0-21swapper/400:36:154
2240255995313,39cyclictest0-21swapper/423:05:184
2240255995313,39cyclictest0-21swapper/423:05:174
2240255995213,39cyclictest0-21swapper/423:54:294
2240255995213,39cyclictest0-21swapper/422:22:404
2240255995213,39cyclictest0-21swapper/420:34:174
2240255995213,39cyclictest0-21swapper/420:07:354
2240255995213,39cyclictest0-21swapper/419:31:234
2240255995212,40cyclictest0-21swapper/422:00:454
2240257995113,19cyclictest0-21swapper/620:45:176
2240255995132,19cyclictest2254630-21/usr/sbin/munin19:35:224
2240255995112,39cyclictest0-21swapper/421:22:384
2240255995112,39cyclictest0-21swapper/421:02:434
2240255995112,39cyclictest0-21swapper/420:50:414
2240255995032,18cyclictest0-21swapper/422:35:454
2240253995031,19cyclictest411rcuc/222:05:162
2240253995012,19cyclictest0-21swapper/222:00:172
2240257994910,39cyclictest0-21swapper/619:10:146
2240255994910,39cyclictest0-21swapper/423:27:124
224025599489,39cyclictest0-21swapper/423:22:354
224025599489,39cyclictest0-21swapper/419:48:224
224025399488,39cyclictest0-21swapper/221:55:192
2240258994747,0cyclictest0-21swapper/721:15:187
224025599478,39cyclictest0-21swapper/423:43:494
224025599478,39cyclictest0-21swapper/422:30:244
2240255994728,19cyclictest0-21swapper/400:12:104
224025699467,39cyclictest0-21swapper/500:10:165
2240258994424,20cyclictest0-21swapper/721:50:167
224025399445,20cyclictest0-21swapper/223:30:162
224025299446,19cyclictest0-21swapper/122:40:161
2240258994325,18cyclictest0-21swapper/721:35:197
224025299435,19cyclictest0-21swapper/100:10:171
224025699424,19cyclictest0-21swapper/519:30:175
224025299422,39cyclictest0-21swapper/100:15:171
224025699413,19cyclictest0-21swapper/519:40:205
224025299413,19cyclictest0-21swapper/120:00:181
2240252994021,1cyclictest2234553-21kworker/1:0-events20:45:181
2240258993838,0cyclictest0-21swapper/700:25:147
224025899380,19cyclictest0-21swapper/719:55:157
224025399380,19cyclictest0-21swapper/221:30:182
224025899370,18cyclictest0-21swapper/719:10:147
2240256993719,18cyclictest0-21swapper/521:45:165
224025399370,37cyclictest0-21swapper/221:25:182
224025899360,35cyclictest0-21swapper/719:35:157
224025899360,35cyclictest0-21swapper/700:05:167
224025299360,36cyclictest0-21swapper/122:20:161
224025299360,17cyclictest0-21swapper/119:55:161
224025299360,17cyclictest0-21swapper/119:50:161
224025899350,35cyclictest0-21swapper/720:10:157
224025899350,16cyclictest0-21swapper/719:40:207
224025799350,35cyclictest0-21swapper/620:15:166
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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