You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-08-15 - 05:52
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 Sat Aug 15, 2026 00:44:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
316107099165151,10cyclictest3186942-21latency_hist20:30:011
316106899157137,17cyclictest3170759-21latency_hist19:40:010
316106899147139,7cyclictest3165716-21kworker/u8:0+events_unbound19:55:010
316106899145138,5cyclictest3201822-21kworker/u8:3+events_unbound22:45:000
316107099141130,8cyclictest3195412-21latency_hist20:55:011
316106899138129,6cyclictest3233268-21kworker/u8:0+events_unbound23:10:000
316106899138126,10cyclictest1213033-21systemd-journal22:05:010
316106899134122,9cyclictest1213033-21systemd-journal00:04:010
316107099131122,7cyclictest3235766-21kworker/u8:1+flush-179:023:30:241
316107099130108,18cyclictest3167326-21latency_hist19:30:011
316106899127117,8cyclictest1213033-21systemd-journal21:50:010
316106899125119,5cyclictest3167315-21kworker/u8:1+flush-179:019:40:240
316106899124114,7cyclictest3227535-21kworker/u8:2+flush-179:023:00:000
316106899123111,9cyclictest3221134-21latency_hist22:15:010
316106899122115,4cyclictest3240521-21kworker/u8:3+flush-179:023:35:270
316107099121109,9cyclictest3245269-21latency_hist23:30:011
316106899120113,4cyclictest3175579-21kworker/u8:3+flush-179:020:05:010
31610709911994,21cyclictest3201822-21kworker/u8:3+flush-179:022:55:151
316106899119112,5cyclictest3201822-21kworker/u8:3+events_unbound22:25:240
316107099118102,11cyclictest3259744-21kworker/u8:2+flush-179:000:35:251
316106899117109,7cyclictest3165716-21kworker/u8:0+events_unbound19:50:010
316106899117105,9cyclictest3201822-21kworker/u8:3+flush-179:022:35:200
316107099116102,11cyclictest3248416-21kworker/u8:0+flush-179:000:10:001
316106899116110,4cyclictest3165716-21kworker/u8:0+events_unbound19:25:010
316106899116109,5cyclictest3259744-21kworker/u8:2+events_unbound00:20:240
316106899115106,7cyclictest1213033-21systemd-journal22:20:010
316106899115106,7cyclictest1213033-21systemd-journal22:20:000
316106899114103,9cyclictest1213033-21systemd-journal19:35:000
316107099113104,5cyclictest3201822-21kworker/u8:3+events_unbound22:55:001
316106899112103,6cyclictest3201822-21kworker/u8:3+flush-179:021:20:190
31610709911178,22cyclictest3203380-21latency_hist21:20:001
316107099111103,6cyclictest3201822-21kworker/u8:3+events_unbound22:40:241
316106899111105,4cyclictest3208128-21kworker/u8:2+flush-179:021:35:240
316106899111103,7cyclictest3159459-21kworker/u8:3+events_unbound19:15:000
316106899111103,7cyclictest3159459-21kworker/u8:3+events_unbound19:14:590
316106899111103,6cyclictest3184007-21kworker/u8:0+flush-179:020:40:000
31610709911099,7cyclictest3227535-21kworker/u8:2+flush-179:022:50:001
31610689911099,8cyclictest3235766-21kworker/u8:1+flush-179:023:45:200
31610709910999,8cyclictest3255135-21/usr/sbin/munin00:00:171
316106899109102,5cyclictest3201822-21kworker/u8:3+flush-179:021:30:180
316106899108102,4cyclictest3201822-21kworker/u8:3+flush-179:022:30:170
31610689910798,7cyclictest3227535-21kworker/u8:2+flush-179:023:00:220
31610709910688,14cyclictest1213033-21systemd-journal00:15:011
316106899106100,5cyclictest3259744-21kworker/u8:2+flush-179:000:35:000
316106899106100,4cyclictest3220014-21kworker/u8:2+flush-179:022:20:240
31610709910595,7cyclictest3237317-21latency_hist23:05:011
31610709910595,6cyclictest3165716-21kworker/u8:0+flush-179:019:35:151
31610709910296,4cyclictest3165716-21kworker/u8:0+events_unbound19:55:231
31610709910296,4cyclictest3165716-21kworker/u8:0+events_unbound19:55:231
31610689910299,2cyclictest3235766-21kworker/u8:1+flush-179:000:05:240
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional