You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-08-24 - 08:43

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 Mon Aug 24, 2026 00:44:14)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3081254996151,7cyclictest275-21systemd-journal19:37:371
3081254995749,5cyclictest3411039-21latency_hist00:40:011
3081250995750,5cyclictest3173323-21diskstats20:42:380
3081254995448,4cyclictest2954217-21kworker/u8:0+events_unbound20:10:011
3081250995343,7cyclictest3081094-21latency_hist19:10:010
3081254995248,3cyclictest3221716-21kworker/u8:0+events_unbound22:27:381
3081254995247,4cyclictest3221716-21kworker/u8:0+flush-8:022:02:391
3081250995142,6cyclictest3306918-21latency_hist22:55:010
3081250995142,6cyclictest2954217-21kworker/u8:0+flush-8:019:22:380
3081250995142,6cyclictest2954217-21kworker/u8:0+flush-8:019:22:380
31728122500,2chrt291ktimers/120:40:011
3081254994841,5cyclictest3272166-21base6422:20:011
3081254994839,7cyclictest3197852-21kworker/u8:1+flush-8:021:07:481
3081254994742,4cyclictest1773283-21kworker/u8:3+flush-8:021:32:391
3081254994742,3cyclictest3296863-21kworker/u8:1+events_unbound23:12:371
3081254994740,5cyclictest2954217-21kworker/u8:0+flush-8:021:02:491
3081254994641,4cyclictest3371220-21kworker/u8:2+events_unbound00:22:421
3081250994638,5cyclictest3395974-21apt-get00:25:030
3081250994637,6cyclictest1-21systemd19:42:370
3081254994541,3cyclictest3261969-21kworker/u8:1+flush-8:022:22:381
3081254994540,4cyclictest3281449-21kworker/u8:3+events_unbound22:57:451
3081254994538,5cyclictest1773283-21kworker/u8:3+flush-8:021:17:471
3081250994538,5cyclictest3395971-21latency_hist00:25:010
3081257994423,18cyclictest3197624-21cat21:05:002
3081254994440,3cyclictest3187729-21kworker/u8:2+events_unbound22:42:451
3081254994439,4cyclictest1773283-21kworker/u8:3+events_unbound19:27:521
3081254994436,6cyclictest3405316-21ntpq00:32:491
3081254994436,6cyclictest2954217-21kworker/u8:0+flush-8:020:22:501
3081254994431,9cyclictest3167447-21latency_hist20:35:011
3081254994338,4cyclictest3366097-21kworker/u8:1+events_unbound00:17:371
3081254994337,4cyclictest1773283-21kworker/u8:3+flush-8:021:22:541
3081250994335,6cyclictest275-21systemd-journal21:37:370
3081250994335,5cyclictest3147635-21latency_hist20:15:010
3081254994238,3cyclictest1773283-21kworker/u8:3+events_unbound20:27:381
3081250994234,6cyclictest2954217-21kworker/u8:0+flush-8:020:22:400
3081250994232,8cyclictest3167443-21apt-get20:35:000
3081254994136,4cyclictest3034507-21kworker/u8:2+flush-8:019:17:371
3081254994135,4cyclictest2954217-21kworker/u8:0+events_unbound20:57:391
3081254994036,3cyclictest2954217-21kworker/u8:0+events_unbound19:47:501
3081254994035,3cyclictest3371220-21kworker/u8:2+events_unbound00:27:471
3081254994035,3cyclictest3221716-21kworker/u8:0+flush-8:023:07:391
3081254994033,5cyclictest3093289-21kworker/u8:1+flush-8:019:52:471
3081257993924,13cyclictest3158233-21fschecks_count20:27:382
3081254993934,4cyclictest3221716-21kworker/u8:0+flush-8:022:12:501
3081254993934,3cyclictest3221716-21kworker/u8:0+flush-8:021:52:411
3081254993933,5cyclictest3093289-21kworker/u8:1+flush-8:020:02:541
3081254993933,4cyclictest3128108-21apt-get19:57:331
3081250993931,6cyclictest3202605-21latency_hist21:10:010
3081257993829,7cyclictest275-21systemd-journal00:31:042
3081254993833,4cyclictest3335877-21kworker/u8:0+flush-8:023:57:421
3081254993833,4cyclictest3335877-21kworker/u8:0+flush-8:023:57:421
3081254993833,4cyclictest3221716-21kworker/u8:0+flush-8:022:32:371
3081254993833,3cyclictest2954217-21kworker/u8:0+events_unbound19:32:471
3081254993828,7cyclictest275-21systemd-journal21:27:371
3081250993832,4cyclictest3221716-21kworker/u8:0+flush-8:022:17:460
3081250993830,6cyclictest3365511-21ntpq23:52:470
3081250993828,8cyclictest3102979-21latency_hist19:30:000
3081257993723,12cyclictest3107650-21unixbench_multi19:32:552
3081254993732,3cyclictest3258135-21irqrtprio22:07:411
3081254993731,5cyclictest3371220-21kworker/u8:2+flush-8:000:02:501
3081254993731,5cyclictest3093289-21kworker/u8:1+flush-8:019:42:381
3081254993731,4cyclictest3316797-21kworker/u8:2+flush-8:023:37:491
31251172360,6sleep3451irq_work/319:52:443
3081254993630,5cyclictest3316797-21kworker/u8:2+flush-8:023:42:531
3081254993630,5cyclictest1773283-21kworker/u8:3+flush-8:021:42:491
3081254993630,5cyclictest1773283-21kworker/u8:3+flush-8:021:42:491
3081254993630,4cyclictest2954217-21kworker/u8:0+flush-8:020:12:541
3081250993631,3cyclictest3221716-21kworker/u8:0+events_unbound22:27:420
3081250993631,3cyclictest1773283-21kworker/u8:3+events_unbound21:42:540
3081250993631,3cyclictest1773283-21kworker/u8:3+events_unbound21:42:540
33708622350,3sleep2371rcuc/223:57:542
33708622350,3sleep2371rcuc/223:57:542
3081257993519,14cyclictest3326378-21unixbench_multi23:12:542
3081254993529,5cyclictest3296863-21kworker/u8:1+flush-8:022:52:481
3081254993529,4cyclictest2954217-21kworker/u8:0+flush-8:020:47:501
3081254993519,12cyclictest275-21systemd-journal20:45:001
3081250993527,6cyclictest275-21systemd-journal22:25:000
3081257993422,11cyclictest3218204-21fschecks_time21:27:392
3081257993420,12cyclictest3287325-21latency_hist22:35:012
3081254993427,4cyclictest3237211-21kworker/u8:1+flush-8:021:57:381
3081250993426,6cyclictest3138456-21diskstats20:07:370
3081250993423,9cyclictest3132758-21runrttasks20:00:010
3081257993317,14cyclictest3396007-21apt-config00:25:012
3081257993310,21cyclictest3201935-21ntpq21:07:482
3081254993328,3cyclictest3324699-21kworker/u8:3+events_unbound23:32:391
3081254993328,3cyclictest3187729-21kworker/u8:2+flush-8:022:37:411
3081254993327,4cyclictest3296863-21kworker/u8:1+events_unbound23:20:001
3081254993327,4cyclictest3296863-21kworker/u8:1+events_unbound23:02:541
3081250993328,4cyclictest3316797-21kworker/u8:2+flush-8:023:38:080
3081250993328,4cyclictest3221716-21kworker/u8:0+flush-8:022:02:070
3081250993328,3cyclictest1773283-21kworker/u8:3+flush-8:021:17:370
3081250993327,4cyclictest3281449-21kworker/u8:3+flush-8:022:41:080
3081257993228,3cyclictest3337036-21aten2_r5power_c23:27:362
3081257993216,14cyclictest3362092-21fschecks_time23:52:382
3081254993227,3cyclictest3083769-21kthreadcore19:12:441
3081254993224,6cyclictest3324699-21kworker/u8:3+flush-8:023:27:491
3081254993222,8cyclictest3366097-21kworker/u8:1+flush-8:000:07:531
3081250993224,6cyclictest275-21systemd-journal20:02:370
3081250993223,7cyclictest3292071-21latency_hist22:40:010
3081250993223,7cyclictest3182664-21cp20:50:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional