You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-04-07 - 21:56
Click here to display the system's profile data or here to proceed to next system.
Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

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 50 highest latencies:
System rackeslot6.osadl.org (updated Tue Apr 07, 2026 12:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1351653999485,7cyclictest1412020-21kworker/u8:1+flush-179:011:10:220
1351655999386,5cyclictest1414232-21kworker/u8:2+flush-179:010:25:201
1351655999384,6cyclictest1444329-21latency_hist11:55:011
1351655999180,7cyclictest1408559-21latency_hist10:05:011
1351655998779,6cyclictest1363214-21kworker/u8:2+flush-179:007:55:151
1351653998778,6cyclictest1375955-21latency_hist08:25:010
1351655998677,6cyclictest1412020-21kworker/u8:1+flush-179:010:30:011
1351655998576,7cyclictest1371413-21/usr/sbin/munin08:10:241
1351655998479,3cyclictest1357882-21kworker/u8:1+flush-179:007:30:211
1351655998477,5cyclictest1441196-21kworker/u8:0+events_unbound12:10:001
1351653998470,11cyclictest266-21systemd-journal09:40:020
1351655998378,3cyclictest1379149-21kworker/u8:3+flush-179:009:05:151
1351655998377,4cyclictest1385494-21kworker/u8:2+flush-179:009:00:161
1351655998376,5cyclictest1412020-21kworker/u8:1+events_unbound11:45:001
1351655998373,7cyclictest1368242-21/usr/sbin/munin08:00:251
1351655998273,7cyclictest1453890-21latency_hist12:25:011
1351655998176,3cyclictest1351487-21kworker/u8:0+flush-179:007:25:221
1351655998176,3cyclictest1351487-21kworker/u8:0+flush-179:007:25:221
1351655998172,6cyclictest1395048-21latency_hist09:25:021
1351653998171,8cyclictest1358422-21apt-get07:30:120
1351655998073,4cyclictest1412020-21kworker/u8:1+events_unbound11:25:251
1351655997972,5cyclictest1396671-21kworker/u8:2+flush-179:009:45:221
1351655997870,6cyclictest1437969-21latency_hist11:35:011
1351655997867,8cyclictest1453866-21kworker/u8:2+flush-179:012:30:211
1351655997771,5cyclictest1393415-21kworker/u8:3+flush-179:009:20:011
1351655997770,5cyclictest1371220-21kworker/u8:1+flush-179:008:25:211
1351655997671,3cyclictest1393415-21kworker/u8:3+events_unbound09:35:031
1351655997670,4cyclictest1403757-21kworker/u8:0+events_unbound09:50:161
1351655997668,5cyclictest1382355-21kworker/u8:0+flush-179:009:30:191
1351655997665,7cyclictest1426541-21kworker/u8:2+flush-179:011:15:211
1351653997668,5cyclictest1423393-21latency_hist10:50:010
1351655997569,4cyclictest1374413-21kworker/u8:2+flush-179:008:35:211
1351653997468,5cyclictest1412020-21kworker/u8:1+events_unbound10:55:270
135165399740,72cyclictest1-21systemd10:35:020
1351655997362,8cyclictest1425519-21diskstats10:55:161
1351655997163,6cyclictest1441196-21kworker/u8:0+flush-179:011:55:211
1351653997157,11cyclictest1416775-21apt-get10:30:000
1351655996958,5cyclictest1412020-21kworker/u8:1+events_unbound11:45:171
1351653996962,5cyclictest1351510-21latency_hist07:10:020
1351653996959,7cyclictest1360216-21cat07:35:000
1351655996861,5cyclictest1419276-21kworker/u8:0+events_unbound10:40:231
1351655996861,5cyclictest1403757-21kworker/u8:0+events_unbound10:20:241
1351655996861,4cyclictest1371220-21kworker/u8:1+flush-179:008:35:011
1351655996860,6cyclictest1383905-21latency_hist08:50:011
1351655996763,3cyclictest1337249-21kworker/u8:1+flush-179:007:10:211
1351655996760,4cyclictest1412020-21kworker/u8:1+flush-179:010:45:221
1351655996660,4cyclictest1426541-21kworker/u8:2+flush-179:011:05:151
1351655996659,5cyclictest1385494-21kworker/u8:2+flush-179:008:55:201
1351655996658,6cyclictest1351487-21kworker/u8:0+flush-179:007:20:141
1351655996658,5cyclictest1412020-21kworker/u8:1+flush-179:010:50:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional