You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-06-04 - 01:14

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 Jun 03, 2026 12:44:16)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
26675422960,2chrt0-21swapper/211:05:542
2427391997155,14cyclictest2667771-21apt-get11:06:370
25928092620,3sleep2161rcu_preempt09:50:502
27335822600,2sleep3451irq_work/312:15:423
2427400995550,4cyclictest2417706-21kworker/u8:0+events_unbound07:15:542
24587012530,3sleep00-21swapper/007:35:530
2427396995344,7cyclictest2432369-21cp07:15:011
2427400995248,3cyclictest2578675-21kworker/u8:1+flush-8:010:55:372
2427396995041,6cyclictest2642149-21ntpq10:40:481
25008262480,0sleep0201rcuc/008:20:440
2427400994843,3cyclictest1401030-21kworker/u8:1+events_unbound07:30:492
2427396994837,8cyclictest2528092-21ntpq08:45:481
2427396994837,8cyclictest2528092-21ntpq08:45:471
2427396994743,3cyclictest2479124-21kworker/u8:0+flush-8:011:30:541
2427391994738,6cyclictest2682937-21latency_hist11:25:010
2427391994736,8cyclictest2478249-21ntpq07:55:490
2427391994722,23cyclictest2584145-21diskstats09:45:390
24598472460,3sleep375-21kworker/3:1+events07:40:383
2427396994641,3cyclictest2443981-21kworker/u8:3+events_unbound08:00:511
2427396994636,7cyclictest2479124-21kworker/u8:0+flush-8:011:20:521
2427391994626,17cyclictest2583368-21apt-get09:45:010
2427391994536,7cyclictest2463448-21ntpq07:40:480
2427396994436,6cyclictest1401030-21kworker/u8:1+flush-8:007:25:401
2427396994435,7cyclictest2716905-21ntpq11:55:481
2427396994435,7cyclictest2716905-21ntpq11:55:471
2427396994434,8cyclictest2741927-21ntpq12:20:491
2427396994335,6cyclictest2652033-21ntpq10:50:471
2427396994335,5cyclictest1704890-21systemd-journal10:05:001
2427396994333,8cyclictest2617457-21ntpq10:15:511
2427400994237,4cyclictest2479124-21kworker/u8:0+events_unbound09:15:532
2427391994230,9cyclictest2718338-21diskstats12:00:380
2427391994230,9cyclictest2718338-21diskstats12:00:370
2427400994136,4cyclictest2479124-21kworker/u8:0+flush-8:008:35:492
2427396994135,4cyclictest2673328-21apt-get11:15:351
2427396994134,5cyclictest2464637-21apt-get07:45:341
2427396994134,4cyclictest2583366-21latency_hist09:45:011
2427396994132,7cyclictest2578675-21kworker/u8:1+flush-8:010:30:551
2427391994131,8cyclictest2592666-21ntpq09:50:470
2427391994124,15cyclictest2524070-21cron08:45:000
2427400994035,4cyclictest2598196-21kworker/u8:3+flush-8:010:25:522
2427396994033,5cyclictest2479124-21kworker/u8:0+flush-8:008:30:401
2427396994032,5cyclictest2752628-21latency_hist12:35:011
2427391994015,7cyclictest2473315-21ntpq07:50:490
2427400993934,4cyclictest2479124-21kworker/u8:0+flush-8:009:30:512
2427391993930,7cyclictest2534456-21diskstats08:55:400
2427400993834,3cyclictest2479124-21kworker/u8:0+events_unbound08:40:522
2427396993832,4cyclictest1401030-21kworker/u8:1+flush-8:007:55:401
2427396993830,6cyclictest2668369-21apt-get11:10:341
2427391993831,5cyclictest2687898-21munin-run11:30:000
2427391993828,8cyclictest2693371-21diskstats11:35:370
2427391993811,9cyclictest2647050-21ntpq10:45:470
2427396993731,4cyclictest2683229-21apt-get11:25:321
2427396993730,4cyclictest1704890-21systemd-journal11:08:021
2427396993729,6cyclictest2479124-21kworker/u8:0+flush-8:009:50:501
2427391993728,6cyclictest2732831-21latency_hist12:15:020
2427400993632,3cyclictest2658334-21kworker/u8:4+events_unbound11:00:462
2427396993629,5cyclictest2593804-21/usr/sbin/munin09:55:481
2427396993628,6cyclictest2702759-21kworker/u8:1+flush-8:012:10:461
2427396993626,7cyclictest2538843-21latency_hist09:00:021
2427396993625,9cyclictest2701878-21ntpq11:40:461
2427396993625,9cyclictest2523156-21ntpq08:40:481
2427391993624,9cyclictest2672240-21ntpq11:10:510
2427391993617,17cyclictest2493876-21unixbench_singl08:10:550
2427391993615,2cyclictest0-21swapper/012:20:440
2427391993615,18cyclictest2618447-21latency_hist10:20:010
2427391993614,3cyclictest0-21swapper/010:32:020
25475202350,2sleep3471rcuc/309:05:453
2427396993531,3cyclictest2479124-21kworker/u8:0+flush-8:008:10:521
2427396993528,5cyclictest2750043-21kworker/u8:2+events_unbound12:35:521
2427396993525,7cyclictest1704890-21systemd-journal08:36:011
2427391993520,13cyclictest2543802-21munin-run09:05:000
2427391993519,14cyclictest2677981-21sendmail11:20:000
2427391993519,14cyclictest0-21swapper/011:50:000
2427391993519,14cyclictest0-21swapper/011:40:400
2427391993514,9cyclictest2547864-21ntpq09:05:480
2427391993514,18cyclictest0-21swapper/010:10:480
2427396993423,8cyclictest1704890-21systemd-journal10:57:021
2427391993427,5cyclictest2633394-21apt-get10:35:330
2427391993419,13cyclictest0-21swapper/012:35:010
2427391993417,15cyclictest2734721-21kthreadcore12:15:440
2427391993413,7cyclictest2552819-21ntpq09:10:490
242739199341,20cyclictest2488737-21sshd08:06:020
2427400993328,4cyclictest1597101-21kworker/u8:2+flush-8:009:55:372
2427396993327,4cyclictest2678231-21kworker/u8:3+events_unbound11:45:381
2427391993326,5cyclictest2652449-21grep10:50:520
2427391993325,6cyclictest2557743-21ntpq09:15:470
2427391993315,3cyclictest2443981-21kworker/u8:3+flush-8:007:30:370
2427391993315,1cyclictest0-21swapper/011:50:430
2427391993315,16cyclictest0-21swapper/007:15:040
2427391993314,3cyclictest2690347-21kthreadcore11:30:450
2427391993313,2cyclictest0-21swapper/008:35:440
2427391993311,4cyclictest0-21swapper/008:45:520
2427391993311,4cyclictest0-21swapper/008:45:510
242739199330,15cyclictest2468989-21taskset07:46:260
2427400993228,3cyclictest1597101-21kworker/u8:2+flush-8:008:00:552
2427396993227,4cyclictest1401030-21kworker/u8:1+events_unbound07:40:391
2427396993225,5cyclictest2578675-21kworker/u8:1+events_unbound10:25:471
2427396993225,5cyclictest2443981-21kworker/u8:3+events_unbound09:20:501
2427396993223,6cyclictest2479124-21kworker/u8:0+flush-8:010:45:471
2427391993216,2cyclictest0-21swapper/010:00:440
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional