You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-07-15 - 00:36
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 Jul 14, 2026 12:44:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
147840499129123,5cyclictest1517052-21kworker/u8:0+flush-179:009:20:000
147840799121108,9cyclictest1213033-21systemd-journal12:20:251
147840799121108,9cyclictest1213033-21systemd-journal12:20:251
147840799119105,10cyclictest1213033-21systemd-journal12:25:251
147840799118108,7cyclictest1547583-21latency_hist10:45:011
147840799118108,7cyclictest1547583-21latency_hist10:45:011
147840499117108,7cyclictest1562204-21kworker/u8:3+events_unbound11:55:010
147840499117108,7cyclictest1562204-21kworker/u8:3+events_unbound11:55:000
147840499117106,7cyclictest1549203-21kworker/u8:2+flush-179:011:10:160
147840799116108,5cyclictest1510688-21latency_hist08:50:011
147840499116109,5cyclictest1544363-21kworker/u8:0+flush-179:011:05:150
147840799115103,8cyclictest1486257-21latency_hist07:35:021
147840799115103,8cyclictest1486257-21latency_hist07:35:011
147840499112104,5cyclictest1505889-21kworker/u8:1+flush-179:008:55:170
147840499111104,5cyclictest1486306-21kworker/u8:1+flush-179:008:05:010
147840499111103,6cyclictest1500855-21kworker/u8:0+events_unbound08:45:000
14784079911097,9cyclictest1573615-21kworker/u8:1+events_unbound12:20:011
14784079910998,8cyclictest1581583-21kworker/u8:3+flush-179:012:40:011
14784049910899,6cyclictest1572544-21kworker/u8:0+flush-179:012:05:190
147840499106100,4cyclictest1500855-21kworker/u8:0+flush-179:008:45:160
14784049910599,4cyclictest1572544-21kworker/u8:0+events_unbound12:30:260
14784079910383,18cyclictest1579002-21kworker/u8:2+flush-179:012:34:591
1478404999892,5cyclictest1572544-21kworker/u8:0+events_unbound12:00:240
1478404999791,4cyclictest1548341-21kworker/u8:1+flush-179:010:55:180
1478407999687,6cyclictest1571994-21latency_hist12:00:021
1478404999487,5cyclictest1538009-21kworker/u8:3+flush-179:010:15:230
1478404999487,5cyclictest1497724-21kworker/u8:2+flush-179:008:15:250
1478407999386,5cyclictest1521821-21kworker/u8:1+flush-179:009:30:011
1478404999385,6cyclictest1504060-21latency_hist08:30:000
1478404999384,7cyclictest1486267-21apt-get07:35:030
147840799921,89cyclictest1-21systemd11:50:011
1478404999185,5cyclictest1500855-21kworker/u8:0+flush-179:008:30:260
1478404999184,5cyclictest1505889-21kworker/u8:1+flush-179:008:50:230
1478407999079,8cyclictest1517061-21latency_hist09:10:001
1478404999084,4cyclictest1467736-21kworker/u8:0+flush-179:007:15:140
1478404999083,5cyclictest1483335-21apt-get07:25:120
1478404999082,6cyclictest1562204-21kworker/u8:3+events_unbound11:45:000
1478404998983,4cyclictest1475319-21kworker/u8:3+flush-179:007:10:140
1478404998980,6cyclictest1531640-21apt-get09:55:120
1478404998882,4cyclictest1573615-21kworker/u8:1+flush-179:012:20:230
1478404998882,4cyclictest1573615-21kworker/u8:1+flush-179:012:20:220
1478404998880,5cyclictest1521821-21kworker/u8:1+events_unbound09:50:250
1478404998879,6cyclictest1533490-21kworker/u8:2+events_unbound10:05:210
1478407998676,8cyclictest1543053-21apt-get10:30:121
1478407998574,8cyclictest1517052-21kworker/u8:0+flush-179:009:20:001
1478407998472,10cyclictest1506449-21diskstats08:35:131
1478404998478,4cyclictest1555516-21kworker/u8:1+flush-179:011:35:250
1478407998373,7cyclictest1521877-21kworker/u8:2+flush-179:009:35:141
1478404998277,3cyclictest1544363-21kworker/u8:0+flush-179:010:50:170
1478407998173,6cyclictest1526883-21kworker/u8:0+events_unbound10:00:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional