You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-06-16 - 15:51
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 Jun 16, 2026 12:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
119326899130120,8cyclictest1226678-21latency_hist08:55:000
119326999118108,7cyclictest1234901-21latency_hist09:20:011
119326899118105,10cyclictest1213033-21systemd-journal09:40:010
119326999108100,5cyclictest1259282-21latency_hist10:35:011
11932689910796,8cyclictest1209215-21kworker/u8:0+flush-179:008:15:240
11932689910695,8cyclictest1275207-21latency_hist11:25:000
11932689910598,5cyclictest1283453-21kworker/u8:0+events_unbound12:10:000
11932699910395,6cyclictest1219761-21kworker/u8:0+flush-179:008:35:251
11932699910291,9cyclictest1244961-21apt-get09:50:111
11932689910296,4cyclictest1219761-21kworker/u8:0+flush-179:008:35:220
11932699910090,7cyclictest1262477-21latency_hist10:45:001
1193268999993,5cyclictest1285050-21kworker/u8:1+flush-179:012:15:000
1193268999992,5cyclictest1243098-21kworker/u8:1+events_unbound09:45:240
1193268999685,9cyclictest1212611-21apt-get08:10:110
1193268999681,6cyclictest1243098-21kworker/u8:1+flush-179:010:05:010
1193268999386,5cyclictest1209215-21kworker/u8:0+flush-179:008:25:010
1193269999285,5cyclictest1244495-21kworker/u8:2+flush-179:010:05:261
1193269999280,9cyclictest1279981-21apt-get11:40:011
1193268999285,5cyclictest1255984-21kworker/u8:3+flush-179:010:30:020
1193269999180,7cyclictest1206026-21kworker/u8:2+flush-179:007:50:211
1193268998982,5cyclictest1259317-21kworker/u8:0+flush-179:011:15:220
1193269998880,6cyclictest1252656-21latency_hist10:15:011
1193269998779,5cyclictest1238059-21kworker/u8:1+events_unbound09:35:011
1193268998677,7cyclictest1251071-21latency_hist10:10:010
1193268998580,4cyclictest1272047-21kworker/u8:1+flush-179:011:30:010
1193268998579,4cyclictest1244495-21kworker/u8:2+flush-179:010:10:240
1193268998477,5cyclictest1294550-21kworker/u8:1+flush-179:012:25:230
1193268998477,5cyclictest1294550-21kworker/u8:1+flush-179:012:25:230
1193268998473,8cyclictest1255852-21latency_hist10:25:010
1193268998377,4cyclictest1281821-21kworker/u8:3+flush-179:011:50:160
1193269998272,8cyclictest1244455-21apt-get09:50:001
1193268998275,5cyclictest1223550-21kworker/u8:3+flush-179:008:55:260
1193268998173,6cyclictest1236473-21kworker/u8:0+flush-179:009:50:240
1193269997969,8cyclictest1288200-21latency_hist12:05:011
1193268997972,4cyclictest1206026-21kworker/u8:2+flush-179:008:05:200
1193271997847,29cyclictest0-21swapper/211:08:592
1193269997870,6cyclictest1259317-21kworker/u8:0+flush-179:010:45:221
1193268997872,4cyclictest1294550-21kworker/u8:1+events_unbound12:35:240
1193268997871,5cyclictest1191689-21kworker/u8:1+events_unbound07:45:240
1193268997870,6cyclictest1238083-21latency_hist09:30:010
1193268997770,5cyclictest1260923-21kworker/u8:2+flush-179:011:15:010
1193268997764,11cyclictest1213033-21systemd-journal07:40:000
1193268997671,4cyclictest1217746-21kworker/u8:2+events_unbound09:05:240
1193268997670,4cyclictest1288244-21kworker/u8:3+flush-179:012:15:230
1193268997668,5cyclictest1217746-21kworker/u8:2+flush-179:009:10:160
1193268997668,5cyclictest1217746-21kworker/u8:2+flush-179:009:10:160
1193269997566,6cyclictest1268877-21kworker/u8:3+flush-179:011:10:151
1193268997569,4cyclictest1217746-21kworker/u8:2+events_unbound08:50:010
1193268997565,8cyclictest1285261-21apt-get11:55:110
1193269997465,7cyclictest1244495-21kworker/u8:2+flush-179:009:55:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional