You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-05-15 - 06:34

OSADL QA Farm on Real-time of Mainline Linux

About - Hardware - CPUs - Benchmarks - Graphics - Benchmarks - Kernels - Boards/Distros - Latency monitoring - Latency plots - System data - Profiles - Compare - Awards

Default latency plot of shadow in rack #5, slot #4

Rack #0/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #1/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #2/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #3/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #4/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #5/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #6/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #7/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #8/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #9/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #a/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #b/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #c/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #d/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #e/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #f/#0 #1 #2 #3 #4 #5 #6 #7 #8 
Special  All - All RT - Optimization - Ethernet - Thumbnails - Next
  Intel
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.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: ondemand
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack5slot4s.osadl.org (updated Fri May 15, 2026 00:44:15)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
73245997566,6cyclictest298314-21kworker/u8:1+events_unbound23:26:061
73241996834,25cyclictest323839-21latency_hist23:20:010
73245996557,6cyclictest84093-21ntpq19:16:031
73247996458,4cyclictest324084-21kworker/u8:0+flush-8:023:41:092
73245996456,6cyclictest189930-21kworker/u8:3+flush-8:022:01:081
73241996452,8cyclictest268741-21latency_hist22:25:010
73241996440,21cyclictest353491-21latency_hist23:50:010
73241996440,21cyclictest353491-21latency_hist23:50:010
73245996358,3cyclictest194532-21kworker/u8:4+events_unbound22:36:091
73245996257,3cyclictest324084-21kworker/u8:0+events_unbound23:35:541
73245996151,7cyclictest3440679-21kworker/u8:3+flush-8:020:06:041
73245996055,3cyclictest78300-21kworker/u8:1+flush-8:019:40:001
73245996053,5cyclictest78300-21kworker/u8:1+flush-8:019:51:051
73245996051,7cyclictest3440679-21kworker/u8:3+flush-8:020:16:081
73245995951,6cyclictest193611-21apt-get21:06:091
73245995853,4cyclictest67982-21kworker/u8:2+events_unbound20:25:521
73245995852,4cyclictest3440679-21kworker/u8:3+events_unbound19:11:071
73245995852,4cyclictest189930-21kworker/u8:3+events_unbound22:00:011
73245995849,7cyclictest324084-21kworker/u8:0+flush-8:023:56:051
73245995751,4cyclictest67982-21kworker/u8:2+flush-8:020:46:041
73245995749,7cyclictest78300-21kworker/u8:1+flush-8:020:01:081
73241995751,5cyclictest194532-21kworker/u8:4+flush-8:022:11:050
73245995651,4cyclictest189930-21kworker/u8:3+events_unbound23:20:011
73245995550,4cyclictest3440679-21kworker/u8:3+events_unbound20:10:571
73241995548,5cyclictest338868-21kworker/u8:2+flush-8:023:51:060
73245995450,3cyclictest189930-21kworker/u8:3+events_unbound21:26:081
73245995449,3cyclictest3440679-21kworker/u8:3+events_unbound19:26:081
73245995448,4cyclictest67982-21kworker/u8:2+flush-8:019:31:041
73245995448,4cyclictest3440679-21kworker/u8:3+flush-8:019:41:031
73245995447,5cyclictest3440679-21kworker/u8:3+flush-8:019:56:071
73245995345,6cyclictest268836-21cp22:25:011
73241995348,3cyclictest67982-21kworker/u8:2+events_unbound19:26:100
73245995246,4cyclictest67982-21kworker/u8:2+events_unbound20:21:091
73241995230,19cyclictest153835-21ntpq20:26:010
73245995145,4cyclictest189930-21kworker/u8:3+events_unbound21:21:071
73245995145,4cyclictest147066-21kworker/u8:0+flush-8:022:50:011
73245995142,7cyclictest253936-21latency_hist22:10:011
73245995044,4cyclictest78300-21kworker/u8:1+events_unbound20:36:041
73245995044,4cyclictest67982-21kworker/u8:2+flush-8:020:56:031
73245995044,4cyclictest194532-21kworker/u8:4+events_unbound22:26:031
73241995043,5cyclictest284391-21apt-get22:40:510
73245994944,4cyclictest194532-21kworker/u8:4+events_unbound21:45:521
73245994944,4cyclictest189930-21kworker/u8:3+events_unbound21:31:071
73245994943,5cyclictest298314-21kworker/u8:1+flush-8:023:21:051
73245994942,5cyclictest189930-21kworker/u8:3+flush-8:023:11:041
73245994942,5cyclictest147066-21kworker/u8:0+flush-8:022:56:041
73241994945,3cyclictest3440679-21kworker/u8:3+events_unbound19:46:040
73241994940,6cyclictest224034-21latency_hist21:40:010
73245994842,4cyclictest3440679-21kworker/u8:3+events_unbound19:45:531
73245994841,5cyclictest147066-21kworker/u8:0+flush-8:022:51:121
73245994841,5cyclictest147066-21kworker/u8:0+events_unbound20:31:061
73241994845,2cyclictest8550irq/124-ahci[0000:00:12.0]22:01:050
73241994841,5cyclictest213210-21ntpq21:26:040
73247994741,4cyclictest67982-21kworker/u8:2+flush-8:020:51:032
73245994741,4cyclictest147066-21kworker/u8:0+events_unbound20:50:521
73245994640,5cyclictest147066-21kworker/u8:0+events_unbound20:41:071
73245994640,4cyclictest378762-21apt-get00:15:501
73245994640,4cyclictest378762-21apt-get00:15:501
73245994640,4cyclictest324084-21kworker/u8:0+flush-8:000:26:051
73245994639,5cyclictest324084-21kworker/u8:0+flush-8:023:31:041
73241994625,19cyclictest104991-21latency_hist19:40:000
73245994539,4cyclictest67982-21kworker/u8:2+flush-8:019:20:581
73245994538,5cyclictest303944-21kworker/u8:2+flush-8:023:06:051
73241994525,16cyclictest298768-21grep22:51:110
3578752450,3chrt75-21kworker/3:1-events23:51:103
73245994437,5cyclictest280-21systemd-journal00:06:351
73241994437,5cyclictest388652-21/usr/sbin/munin00:26:020
73241994427,14cyclictest198944-21grep21:11:100
73241994424,17cyclictest189274-21latency_hist21:05:000
73241994318,22cyclictest363363-21latency_hist00:00:010
73245994237,4cyclictest194532-21kworker/u8:4+events_unbound22:15:541
73245994235,5cyclictest189930-21kworker/u8:3+flush-8:000:31:061
73241994225,15cyclictest308663-21grep23:01:110
73241994222,18cyclictest164190-21unixbench_multi20:36:100
73241994222,17cyclictest234154-21latency_hist21:50:010
7324199421,11cyclictest589-21runrttasks23:06:060
73245994136,3cyclictest324084-21kworker/u8:0+events_unbound00:01:031
73245994136,3cyclictest147066-21kworker/u8:0+events_unbound21:36:101
73245994133,6cyclictest189930-21kworker/u8:3+flush-8:023:01:041
73241994136,3cyclictest67982-21kworker/u8:2+flush-8:020:21:050
73241994125,14cyclictest333398-21unixbench_singl23:26:110
73247994035,4cyclictest338868-21kworker/u8:2+events_unbound00:16:072
73247994035,4cyclictest338868-21kworker/u8:2+events_unbound00:16:072
73245994035,4cyclictest147066-21kworker/u8:0+flush-8:021:16:091
73245994033,5cyclictest338868-21kworker/u8:2+flush-8:000:21:061
73241994023,14cyclictest279145-21apt-key22:35:010
73245993933,4cyclictest189930-21kworker/u8:3+flush-8:021:11:041
73245993932,5cyclictest194532-21kworker/u8:4+flush-8:021:41:051
73245993932,5cyclictest194532-21kworker/u8:4+flush-8:021:41:051
73241993929,8cyclictest183411-21ntpq20:56:020
73241993924,13cyclictest143846-21needreboot20:16:010
73241993917,19cyclictest194303-21latency_hist21:10:010
2541022390,2sleep375-21kworker/3:1-events22:10:013
73247993834,3cyclictest194532-21kworker/u8:4+events_unbound22:31:082
73247993834,2cyclictest284069-21/usr/sbin/munin22:40:012
73247993832,4cyclictest368300-21apt-get00:05:012
73245993833,4cyclictest194532-21kworker/u8:4+flush-8:022:31:031
73245993831,5cyclictest353798-21apt-get23:50:491
73241993832,4cyclictest324226-21grep23:20:510
73241993831,5cyclictest393587-21/usr/sbin/munin00:31:020
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional