You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-06-03 - 17:51
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 Wed Jun 03, 2026 12:44:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
365951299122111,8cyclictest3745419-21latency_hist11:35:001
365951299117103,11cyclictest1213033-21systemd-journal10:35:001
365951299117103,11cyclictest1213033-21systemd-journal10:34:591
3659511999991,5cyclictest3724450-21kworker/u8:2+flush-179:010:40:010
3659512999890,6cyclictest3716006-21latency_hist10:05:011
3659511999787,7cyclictest3667390-21latency_hist07:35:010
3659512999686,7cyclictest3724475-21latency_hist10:30:011
3659512999588,5cyclictest3675352-21kworker/u8:1+events_unbound08:00:011
3659512999381,9cyclictest1213033-21systemd-journal09:25:001
3659512999283,7cyclictest3748611-21latency_hist11:45:011
3659512999283,7cyclictest3706169-21kworker/u8:1+flush-179:009:45:011
3659512999283,7cyclictest3706169-21kworker/u8:1+flush-179:009:45:001
3659512999178,10cyclictest1213033-21systemd-journal10:25:011
3659511999181,7cyclictest3761344-21latency_hist12:25:010
3659512999081,6cyclictest3766120-21latency_hist12:40:021
3659512999081,6cyclictest3766120-21latency_hist12:40:011
3659511999081,6cyclictest1-21systemd09:55:010
3659512998982,5cyclictest3693192-21latency_hist08:55:011
3659512998878,7cyclictest3742223-21kworker/u8:0+flush-179:011:25:271
3659512998773,12cyclictest1213033-21systemd-journal10:10:011
3659511998761,15cyclictest1213033-21systemd-journal10:20:010
3659512998676,7cyclictest3670612-21latency_hist07:45:011
3659511998671,11cyclictest3686835-21apt-get08:35:000
3659512998575,7cyclictest3756564-21latency_hist12:10:011
3659511998572,9cyclictest1213033-21systemd-journal09:05:000
3659512998476,5cyclictest3754977-21latency_hist12:05:021
3659511998477,5cyclictest3672435-21/usr/sbin/munin07:50:250
3659511998475,6cyclictest3732965-21diskstats10:55:150
3659511998475,6cyclictest3703011-21latency_hist09:25:010
3659512998373,8cyclictest3680662-21apt-get08:15:121
3659511998374,7cyclictest3711224-21latency_hist09:50:000
3659512998272,8cyclictest3727926-21apt-get10:40:111
3659512998175,4cyclictest3682255-21kworker/u8:3+flush-179:008:25:011
3659512998074,4cyclictest3664250-21kworker/u8:1+flush-179:007:30:221
3659512998070,7cyclictest3742223-21kworker/u8:0+flush-179:011:35:201
3659512997972,5cyclictest3753348-21kworker/u8:2+flush-179:012:00:001
3659512997972,5cyclictest3669257-21kworker/u8:0+events_unbound07:55:011
3659512997971,6cyclictest3695037-21kworker/u8:1+flush-179:009:20:011
3659512997868,7cyclictest3707832-21kworker/u8:0+flush-179:010:20:001
3659512997867,8cyclictest3704597-21latency_hist09:30:001
3659512997866,9cyclictest3735620-21latency_hist11:05:001
3659512997770,5cyclictest3698209-21kworker/u8:0+flush-179:009:10:251
3659511997767,7cyclictest3748849-21kworker/u8:0+flush-179:012:05:200
3659512997671,4cyclictest3707832-21kworker/u8:0+flush-179:010:54:561
3659511997669,5cyclictest3714672-21apt-get10:00:110
3659512997563,9cyclictest3690274-21apt-get08:45:121
3659512997464,8cyclictest3739303-21apt-get11:15:111
3659511997366,5cyclictest3742232-21kworker/u8:1+flush-179:011:25:000
3659512997266,5cyclictest3756554-21kworker/u8:2+flush-179:012:10:171
3659511997264,6cyclictest3753380-21latency_hist12:00:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional