You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-05-07 - 02:32
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 May 06, 2026 12:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1956189999585,7cyclictest2031667-21kworker/u8:2+flush-179:011:00:230
1956189999283,6cyclictest2030666-21latency_hist11:00:000
1956193999180,8cyclictest2050057-21latency_hist12:00:021
1956189999180,7cyclictest2008117-21latency_hist09:50:010
1956193998880,5cyclictest2031667-21kworker/u8:2+flush-179:012:25:001
1956189998475,6cyclictest2016329-21latency_hist10:15:010
1956193998376,5cyclictest1960920-21kworker/u8:3+flush-179:008:05:001
1956189998368,10cyclictest2040253-21kworker/u8:3+flush-179:011:40:000
1956193998276,4cyclictest2025885-21kworker/u8:1+flush-179:010:55:241
1956193998175,4cyclictest2031667-21kworker/u8:2+flush-179:012:00:161
1956189998172,6cyclictest2019534-21latency_hist10:25:020
1956193998074,4cyclictest1983952-21kworker/u8:1+flush-179:008:35:241
1956193998071,6cyclictest1988787-21kworker/u8:3+flush-179:009:00:241
1956193997872,4cyclictest2025885-21kworker/u8:1+flush-179:011:35:181
1956193997872,4cyclictest2016568-21kworker/u8:1+flush-179:010:25:141
1956193997868,7cyclictest1969161-21kworker/u8:2+flush-179:007:55:161
1956193997866,9cyclictest2013397-21/usr/sbin/munin10:05:221
1956189997763,12cyclictest1213033-21systemd-journal07:53:170
1956189997666,7cyclictest2013160-21latency_hist10:05:020
1956193997569,4cyclictest2025885-21kworker/u8:1+events_unbound11:25:221
1956193997569,4cyclictest2024277-21kworker/u8:0+flush-179:010:50:151
1956193997569,4cyclictest2003318-21kworker/u8:3+flush-179:009:35:001
1956193997560,11cyclictest2008126-21apt-get09:50:001
1956189997566,6cyclictest1977340-21latency_hist08:15:010
1956193997466,6cyclictest2009963-21latency_hist09:55:011
1956189997466,5cyclictest1-21systemd10:35:000
1956193997367,4cyclictest2001730-21kworker/u8:0+flush-179:009:35:141
1956193997367,4cyclictest2001730-21kworker/u8:0+flush-179:009:35:141
1956193997366,5cyclictest1993583-21kworker/u8:2+flush-179:009:20:001
1956189997362,9cyclictest2010504-21diskstats09:55:150
1956193997265,5cyclictest1958742-21kworker/u8:1+events_unbound07:25:121
1956193997263,7cyclictest1977326-21kworker/u8:2+flush-179:008:25:201
1956193997157,13cyclictest2011527-21kworker/u8:0+flush-179:010:00:141
1956189997159,10cyclictest1993583-21kworker/u8:2+flush-179:009:45:000
1956193997058,9cyclictest2024277-21kworker/u8:0+flush-179:010:45:011
1956193997057,10cyclictest1213033-21systemd-journal10:15:001
1956193996962,5cyclictest2016568-21kworker/u8:1+flush-179:010:19:591
1956193996862,4cyclictest2016568-21kworker/u8:1+flush-179:010:30:221
1956193996862,4cyclictest1988244-21kworker/u8:1+flush-179:008:55:241
1956193996860,6cyclictest2048668-21kworker/u8:1+flush-179:012:05:191
1956193996859,7cyclictest1960863-21kworker/u8:2+flush-179:007:34:551
1956193996761,4cyclictest2031667-21kworker/u8:2+flush-179:011:00:221
1956193996757,8cyclictest1213033-21systemd-journal07:23:461
1956189996757,8cyclictest2045254-21apt-get11:45:120
1956189996756,9cyclictest1974421-21apt-get08:05:100
1956193996560,3cyclictest1986115-21kworker/u8:2+flush-179:008:50:141
1956193996558,5cyclictest2053250-21kworker/u8:3+flush-179:012:20:001
1956189996554,9cyclictest1994077-21diskstats09:05:150
1956193996459,4cyclictest2008144-21kworker/u8:3+flush-179:009:55:261
1956193996456,6cyclictest1983971-21latency_hist08:35:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional