You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-11-18 - 01:40
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 Mon Nov 17, 2025 12:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
220881999789,6cyclictest257693-21latency_hist09:05:020
220881999685,8cyclictest327658-21latency_hist12:40:010
220885998977,8cyclictest322181-21kworker/u8:1+flush-179:012:40:001
220881998979,7cyclictest311485-21latency_hist11:50:020
220881998474,7cyclictest502-21rs:main0
220881998275,4cyclictest200318-21kworker/u8:0+events_unbound07:40:010
220885997767,7cyclictest264041-21kworker/u8:0+flush-179:009:30:011
220881997670,5cyclictest277030-21kworker/u8:3+flush-179:010:10:010
220885997463,8cyclictest231958-21latency_hist07:45:011
220881997464,8cyclictest265886-21/usr/sbin/munin09:30:250
220881997464,8cyclictest265886-21/usr/sbin/munin09:30:250
220881997366,5cyclictest322181-21kworker/u8:1+flush-179:012:30:270
220885997262,8cyclictest324731-21apt-get12:30:141
220885997261,8cyclictest319695-21latency_hist12:15:011
220885997260,9cyclictest271-21systemd-journal10:15:281
220881997060,8cyclictest269102-21apt-get09:40:120
220885996960,6cyclictest227153-21latency_hist07:30:011
220881996861,5cyclictest200318-21kworker/u8:0+flush-179:007:55:000
220881996858,7cyclictest306450-21latency_hist11:35:010
220885996754,10cyclictest317849-21latency_hist12:10:011
220881996759,5cyclictest251325-21latency_hist08:45:010
220881996658,6cyclictest271-21systemd-journal08:55:010
220881996657,7cyclictest251562-21/usr/sbin/munin08:45:250
220881996560,3cyclictest191rcuc/008:25:250
220881996553,10cyclictest232213-21apt-get07:45:140
220885996454,8cyclictest283699-21kworker/u8:0+flush-179:011:10:011
220885996453,9cyclictest283919-21apt-get10:25:131
220881996457,6cyclictest316962-21kworker/u8:1+flush-179:012:09:560
220885996350,10cyclictest276831-21apt-get10:03:031
220881996354,6cyclictest277030-21kworker/u8:3+flush-179:010:25:010
220881996354,6cyclictest277030-21kworker/u8:3+flush-179:010:25:010
220885996253,7cyclictest261100-21/usr/sbin/munin09:15:251
220885996251,8cyclictest200318-21kworker/u8:0+flush-179:008:50:001
220887996158,2cyclictest0-21swapper/210:37:592
220881996155,4cyclictest283699-21kworker/u8:0+flush-179:011:15:240
220881996154,5cyclictest200318-21kworker/u8:0+flush-179:007:20:230
220887996026,2cyclictest0-21swapper/207:17:592
220881996054,4cyclictest248116-21kworker/u8:2+events_unbound09:00:010
220881996050,8cyclictest293435-21/usr/sbin/munin10:55:270
220881995949,8cyclictest291851-21/usr/sbin/munin10:50:240
220881995853,4cyclictest322181-21kworker/u8:1+flush-179:012:29:560
220881995848,7cyclictest309881-21kworker/u8:0+flush-179:011:55:170
220885995749,6cyclictest267237-21latency_hist09:35:011
220885995749,6cyclictest267237-21latency_hist09:35:001
220881995752,4cyclictest303009-21kworker/u8:2+flush-179:011:50:180
220881995751,4cyclictest278662-21kworker/u8:1+flush-179:010:40:220
220881995750,5cyclictest219304-21kworker/u8:2+events_unbound07:10:250
220885995649,5cyclictest723-21Xorg10:37:591
220885995649,5cyclictest286814-21kworker/u8:2+flush-179:010:35:011
220885995646,8cyclictest272274-21apt-get09:50:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional