You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-07-01 - 07:44

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 Wed Jul 01, 2026 00:44:16)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
316405021870,3sleep375-21kworker/3:1-events00:00:183
29363242710,2chrt39-21ksoftirqd/220:10:202
2871877996559,4cyclictest3113075-21kworker/u8:0+events_unbound23:45:281
2871877996355,6cyclictest2933842-21kworker/u8:0+flush-8:022:15:261
2871877996355,6cyclictest2933842-21kworker/u8:0+flush-8:022:15:261
2871877996256,5cyclictest2911071-21kworker/u8:1+events_unbound20:05:301
2871877996256,5cyclictest2911071-21kworker/u8:1+events_unbound20:05:301
2871877996055,3cyclictest2933842-21kworker/u8:0+events_unbound21:35:291
2871877995852,5cyclictest3137829-21kworker/u8:2+events_unbound00:35:281
2871877995752,4cyclictest3012449-21kworker/u8:1+events_unbound21:45:131
2871877995751,4cyclictest3032895-21kworker/u8:3+events_unbound21:50:271
2871877995751,4cyclictest3032895-21kworker/u8:3+events_unbound21:50:261
2871877995751,4cyclictest2911071-21kworker/u8:1+flush-8:020:20:301
2871877995750,5cyclictest2933842-21kworker/u8:0+events_unbound21:05:301
29663772560,1sleep02966384-21tr20:40:200
2871877995652,3cyclictest3077814-21kworker/u8:3+events_unbound23:05:301
2871877995651,4cyclictest3068013-21kworker/u8:1+flush-8:022:35:261
2871877995649,6cyclictest3113075-21kworker/u8:0+flush-8:023:20:291
2871877995648,6cyclictest2898400-21kworker/u8:2+events_unbound20:15:281
2871873995647,7cyclictest2948701-21/usr/sbin/munin20:25:230
2871877995549,4cyclictest3113075-21kworker/u8:0+events_unbound23:15:281
2871877995448,4cyclictest2898400-21kworker/u8:2+events_unbound19:35:281
2871877995447,5cyclictest2898400-21kworker/u8:2+events_unbound20:45:241
2871877995346,5cyclictest3068013-21kworker/u8:1+events_unbound22:55:261
2871877995342,9cyclictest3091786-21ntpq22:45:241
2871877995246,5cyclictest2933842-21kworker/u8:0+flush-8:021:40:261
2871877995246,5cyclictest2911071-21kworker/u8:1+flush-8:020:00:251
2871877995246,5cyclictest2026296-21kworker/u8:0+events_unbound19:15:291
2871877995245,5cyclictest3123163-21kworker/u8:1+events_unbound00:25:291
287187399520,50cyclictest1-21systemd00:00:000
2871878995146,4cyclictest2884284-21kworker/u8:3+flush-8:019:25:302
2871877995046,3cyclictest2933842-21kworker/u8:0+events_unbound21:55:301
2871877995045,4cyclictest2026296-21kworker/u8:0+events_unbound19:10:281
2871877995045,3cyclictest2898400-21kworker/u8:2+events_unbound20:25:251
2871877995044,5cyclictest3068013-21kworker/u8:1+events_unbound22:50:301
2871878994837,8cyclictest1704890-21systemd-journal00:09:592
2871877994844,3cyclictest3003364-21kworker/u8:2+flush-8:021:30:281
2871877994742,3cyclictest2962780-21kworker/u8:3+flush-8:020:40:251
2871877994741,5cyclictest2911071-21kworker/u8:1+events_unbound19:55:271
2871877994642,3cyclictest2911071-21kworker/u8:1+flush-8:020:35:311
2871877994640,4cyclictest3137829-21kworker/u8:2+flush-8:023:50:261
2871877994640,4cyclictest2962780-21kworker/u8:3+flush-8:021:25:211
287187399461,43cyclictest1-21systemd23:35:010
2871873994611,18cyclictest589-21runrttasks22:45:130
2871877994541,3cyclictest3003364-21kworker/u8:2+flush-8:022:05:331
2871877994538,5cyclictest3123163-21kworker/u8:1+events_unbound00:30:151
2871877994438,4cyclictest2884284-21kworker/u8:3+flush-8:019:30:141
2871878994337,4cyclictest2962780-21kworker/u8:3+flush-8:021:00:302
2871877994339,2cyclictest3077814-21kworker/u8:3+events_unbound23:10:121
2871877994338,4cyclictest2884284-21kworker/u8:3+events_unbound19:40:221
2871877994337,5cyclictest3123163-21kworker/u8:1+flush-8:023:35:261
2871877994337,5cyclictest2993426-21kworker/u8:1+flush-8:021:10:261
2871877994337,5cyclictest2911071-21kworker/u8:1+events_unbound19:45:281
2871877994336,5cyclictest3077814-21kworker/u8:3+events_unbound22:40:181
2871873994335,6cyclictest3027021-21ntpq21:40:220
2871873994334,7cyclictest2912672-21ntpq19:45:250
2871873994333,8cyclictest2977295-21ntpq20:50:260
2871878994234,6cyclictest1704890-21systemd-journal22:00:002
2871877994136,4cyclictest3113075-21kworker/u8:0+flush-8:000:05:251
2871877994135,5cyclictest2933842-21kworker/u8:0+flush-8:020:30:261
2871877994134,5cyclictest2993426-21kworker/u8:1+flush-8:021:15:251
2871877994131,6cyclictest1704890-21systemd-journal19:50:471
2871877994035,4cyclictest2933842-21kworker/u8:0+flush-8:022:20:121
2871877994035,4cyclictest2933842-21kworker/u8:0+flush-8:022:20:121
2871877994035,3cyclictest3113075-21kworker/u8:0+flush-8:023:40:211
2871877994034,4cyclictest3123163-21kworker/u8:1+flush-8:023:55:271
2871877994034,4cyclictest3003364-21kworker/u8:2+events_unbound22:10:271
2871877993935,3cyclictest3032895-21kworker/u8:3+flush-8:022:00:291
2871877993934,4cyclictest2876927-21kworker/u8:1+events_unbound19:25:161
2871878993731,4cyclictest3003364-21kworker/u8:2+events_unbound22:40:292
2871877993732,3cyclictest2876927-21kworker/u8:1+events_unbound19:24:591
2871873993727,8cyclictest2933842-21kworker/u8:0+flush-8:021:35:310
2871878993631,4cyclictest3123163-21kworker/u8:1+flush-8:023:30:302
2871878993630,4cyclictest3113075-21kworker/u8:0+flush-8:023:10:262
2871878993626,8cyclictest2947632-21ntpq20:20:292
2871877993630,4cyclictest3123163-21kworker/u8:1+flush-8:000:15:161
2871877993629,5cyclictest3163069-21apt-get00:00:081
2871873993629,5cyclictest1704890-21systemd-journal21:16:000
2871873993628,5cyclictest3107449-21grep23:00:320
2871873993625,8cyclictest3101927-21ntpq22:55:250
28714752364,10sleep10-21swapper/119:07:071
2871878993530,4cyclictest2876927-21kworker/u8:1+events_unbound19:20:282
2871877993531,3cyclictest3077814-21kworker/u8:3+flush-8:023:30:201
2871877993531,3cyclictest2973082-21kworker/u8:1+flush-8:020:55:191
2871873993529,4cyclictest3122273-21grep23:15:310
2871873993528,5cyclictest2933842-21kworker/u8:0+events_unbound22:15:250
2871873993528,5cyclictest2933842-21kworker/u8:0+events_unbound22:15:240
2871873993528,5cyclictest1704890-21systemd-journal23:41:290
2871873993525,8cyclictest3072038-21ntpq22:25:250
2871873993523,8cyclictest1704890-21systemd-journal23:55:000
29353342340,3sleep10-21swapper/120:10:191
2871878993429,4cyclictest3003364-21kworker/u8:2+flush-8:022:25:302
2871878993429,4cyclictest2973082-21kworker/u8:1+events_unbound20:50:302
2871877993429,4cyclictest3113075-21kworker/u8:0+flush-8:023:25:341
287187399343,7cyclictest3173963-21grep00:15:100
2871877993329,3cyclictest3003364-21kworker/u8:2+flush-8:021:20:301
2871877993327,5cyclictest2933842-21kworker/u8:0+flush-8:022:25:261
2871873993328,3cyclictest2933609-21cron20:10:000
2871873993328,3cyclictest2933609-21cron20:09:590
2871873993324,7cyclictest2897805-21ntpq19:30:230
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional