You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-01-03 - 21:49
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 Jan 03, 2026 12:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3442457999787,7cyclictest3522739-21latency_hist11:15:011
3442454999672,20cyclictest3471823-21latency_hist08:40:020
3442454999672,20cyclictest3471823-21latency_hist08:40:010
3442457998884,3cyclictest3477368-21kworker/u8:1+events_unbound09:10:281
3442457998877,9cyclictest3482658-21kworker/u8:0+flush-179:009:55:201
3442457998581,3cyclictest3471802-21kworker/u8:0+events_unbound08:40:241
3442457998479,4cyclictest3484053-21kworker/u8:3+events_unbound09:15:251
3442457998176,4cyclictest3542086-21kworker/u8:0+events_unbound12:20:221
3442454998167,11cyclictest266-21systemd-journal09:45:010
3442457997970,6cyclictest3455391-21latency_hist07:50:001
3442457997945,33cyclictest714-21Xorg09:35:591
3442454997969,7cyclictest3525937-21latency_hist11:25:010
3442457997873,4cyclictest3482658-21kworker/u8:0+events_unbound09:30:251
3442457997873,3cyclictest3458816-21kworker/u8:2+events_unbound08:20:181
3442454997870,5cyclictest3477416-21kworker/u8:3+flush-179:009:00:010
3442457997768,6cyclictest3524355-21latency_hist11:20:011
3442457997672,3cyclictest3484053-21kworker/u8:3+events_unbound09:20:231
3442457997671,4cyclictest3501515-21kworker/u8:2+events_unbound10:15:201
3442457997671,4cyclictest3501515-21kworker/u8:2+events_unbound10:15:191
3442457997466,3cyclictest3443990-21kworker/u8:3+events_unbound07:15:241
3442457997465,7cyclictest3482177-21apt-get09:09:591
3442457997268,3cyclictest3450569-21kworker/u8:3+events_unbound07:35:331
3442457997267,4cyclictest3477416-21kworker/u8:3+events_unbound08:55:211
3442457997260,9cyclictest3520892-21latency_hist11:10:021
3442454997259,11cyclictest266-21systemd-journal08:25:000
3442457997166,4cyclictest3449308-21kworker/u8:0+events_unbound07:40:241
3442454996963,4cyclictest3475521-21kworker/u8:2+flush-179:008:55:010
3442457996762,4cyclictest3542086-21kworker/u8:0+flush-179:012:25:201
3442457996762,4cyclictest3530753-21kworker/u8:0+flush-179:011:50:261
3442457996762,4cyclictest3492101-21kworker/u8:3+events_unbound09:40:231
3442454996756,8cyclictest3537579-21/usr/sbin/munin12:00:250
3442454996756,8cyclictest266-21systemd-journal11:05:000
3442457996662,3cyclictest3519280-21kworker/u8:2+events_unbound11:20:221
3442457996561,3cyclictest3477416-21kworker/u8:3+events_unbound09:00:161
3442457996561,3cyclictest3461747-21kworker/u8:3+events_unbound08:10:161
3442457996560,4cyclictest3508135-21/usr/sbin/munin10:30:251
3442457996545,19cyclictest3524381-21kworker/u8:1+flush-179:012:09:551
3442457996452,10cyclictest3527569-21kworker/u8:3+flush-179:012:00:001
3442457996358,4cyclictest3543810-21kworker/u8:3+events_unbound12:30:201
3442457996358,4cyclictest3471802-21kworker/u8:0+flush-179:008:50:381
3442457996352,9cyclictest3511079-21apt-get10:40:001
3442454996353,7cyclictest3524381-21kworker/u8:1+flush-179:012:05:230
3442454996256,4cyclictest3482658-21kworker/u8:0+flush-179:009:29:560
3442462996157,2cyclictest0-21swapper/308:21:593
3442457996156,4cyclictest3447301-21kworker/u8:1+flush-179:007:29:551
3442454996151,8cyclictest3479225-21/usr/sbin/munin09:00:220
3442457996055,4cyclictest3497290-21kworker/u8:2+events_unbound10:00:281
3442457996055,4cyclictest3458816-21kworker/u8:2+events_unbound08:05:141
3442454996056,3cyclictest3484053-21kworker/u8:3+events_unbound09:20:180
3442454996052,6cyclictest3501515-21kworker/u8:2+flush-179:010:15:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional