You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-05-18 - 21:47

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 May 18, 2026 12:44:13)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
168302221410,1sleep375-21kworker/3:1-events10:30:523
17490252970,3chrt75-21kworker/3:1-events11:25:553
16714612840,4sleep21671466-21needreboot10:16:002
17050952720,4sleep30-21swapper/310:48:593
1481936997159,8cyclictest1703301-21dpkg10:48:270
16079032640,7sleep3451irq_work/309:15:003
1481936995646,7cyclictest632272-21kworker/u8:1+flush-8:007:26:040
1481936995448,4cyclictest1665378-21kworker/u8:0+flush-8:010:16:030
1481936995445,6cyclictest1503590-21kworker/u8:0+flush-8:008:21:020
15019422530,3sleep375-21kworker/3:1+mm_percpu_wq07:25:583
1481939995245,5cyclictest1503590-21kworker/u8:0+flush-8:007:36:081
1481936994839,7cyclictest1591859-21ntpq08:55:570
17267782470,2sleep375-21kworker/3:1-events11:01:113
1481939994740,5cyclictest1702261-21apt-get10:48:031
1481939994737,8cyclictest1522506-21ntpq07:46:001
1481936994742,4cyclictest1503590-21kworker/u8:0+flush-8:009:01:030
1481936994638,6cyclictest1538220-21kworker/u8:1+flush-8:009:16:030
1481939994537,6cyclictest1503590-21kworker/u8:0+flush-8:008:06:031
1481939994535,8cyclictest1636670-21ntpq09:41:021
1481936994536,6cyclictest1513487-21latency_hist07:40:010
1481939994433,7cyclictest280-21systemd-journal09:34:341
1481936994439,3cyclictest1538220-21kworker/u8:1+flush-8:008:30:490
1481943994333,7cyclictest280-21systemd-journal09:05:012
1481939994237,4cyclictest1462407-21kworker/u8:2+flush-8:007:51:051
1481939994235,5cyclictest1762206-21latency_hist11:40:011
1481939994235,5cyclictest1704890-21systemd-journal12:26:231
1481939994234,5cyclictest280-21systemd-journal08:45:011
1481939994232,8cyclictest1586808-21ntpq08:51:041
1481936994232,8cyclictest1532366-21ntpq07:56:010
1481943994130,8cyclictest1702451-21tar10:48:102
1481939994133,5cyclictest1652389-21latency_hist10:00:001
14816572414,31sleep30-21swapper/307:09:063
17861782400,4sleep00-21swapper/012:01:030
1481943994036,3cyclictest1503590-21kworker/u8:0+flush-8:008:11:042
1481936994031,7cyclictest1602004-21ntpq09:06:010
1481939993933,4cyclictest1503875-21apt-get07:30:461
1481939993932,5cyclictest280-21systemd-journal10:21:341
1481939993931,6cyclictest1687616-21apt-get10:35:471
1481939993930,7cyclictest1618015-21apt-get09:25:461
1481939993929,7cyclictest280-21systemd-journal10:16:341
1481936993934,3cyclictest1603119-21kworker/u8:2+events_unbound09:20:520
1481936993933,5cyclictest1617102-21kworker/u8:0+events_unbound09:36:000
1481936993929,7cyclictest280-21systemd-journal10:31:000
14814812394,10sleep10-21swapper/107:06:471
16918662380,1sleep01691868-21grep10:36:080
1481939993730,5cyclictest1662823-21apt-get10:10:481
1481936993731,5cyclictest1462407-21kworker/u8:2+flush-8:007:51:080
1481936993729,6cyclictest1642474-21latency_hist09:50:010
1481936993728,7cyclictest1756646-21python311:31:050
1481936993631,4cyclictest1665378-21kworker/u8:0+flush-8:010:11:020
1481936993631,3cyclictest1617102-21kworker/u8:0+events_unbound09:26:010
1481936993629,4cyclictest1481808-21kworker/u8:3+flush-8:008:05:530
1481936993628,6cyclictest1657351-21apt-get10:05:010
1481936993628,6cyclictest1538220-21kworker/u8:1+flush-8:008:36:020
1481943993526,7cyclictest280-21systemd-journal09:42:332
1481939993528,5cyclictest1681920-21grep10:26:071
1481939993527,6cyclictest1482097-21/usr/sbin/munin07:11:011
16762052340,5sleep3451irq_work/310:20:583
1481943993425,6cyclictest280-21systemd-journal09:00:012
1481939993429,3cyclictest1602902-21systemd-run09:10:001
1481939993428,4cyclictest1797367-21apt-get12:15:481
1481939993425,6cyclictest1533271-21latency_hist08:00:011
1481936993426,5cyclictest1677364-21latency_hist10:25:010
1481936993425,5cyclictest0-21swapper/011:45:460
1481943993327,4cyclictest280-21systemd-journal09:52:342
1481939993328,3cyclictest1784506-21kthreadcore12:00:571
1481939993325,6cyclictest1561971-21ntpq08:26:011
1481936993328,4cyclictest1617102-21kworker/u8:0+events_unbound09:30:490
1481936993326,5cyclictest1617102-21kworker/u8:0+flush-8:009:41:020
16794702320,4sleep00-21swapper/010:25:570
1481943993220,9cyclictest1797265-21cp12:15:022
1481939993225,5cyclictest1627934-21apt-get09:35:461
1481939993223,6cyclictest280-21systemd-journal08:32:341
1481936993228,3cyclictest1481808-21kworker/u8:3+events_unbound07:10:510
1481936993227,4cyclictest1771763-21kworker/u8:2+flush-8:011:50:360
1481936993227,4cyclictest1771763-21kworker/u8:2+flush-8:011:50:360
1481936993227,4cyclictest1752562-21kworker/u8:1+flush-8:012:26:020
1481936993227,3cyclictest1481808-21kworker/u8:3+flush-8:007:16:090
1481936993225,5cyclictest632272-21kworker/u8:1+flush-8:007:21:020
1481936993225,5cyclictest1821741-21cron12:40:000
1481943993128,2cyclictest1489081-21aten2_r5power_e07:15:502
1481939993126,3cyclictest1494702-21irqrtprio07:20:561
1481936993127,3cyclictest1481808-21kworker/u8:3+flush-8:008:16:060
1481936993126,4cyclictest1481808-21kworker/u8:3+events_unbound08:00:520
1481936993126,3cyclictest1503590-21kworker/u8:0+flush-8:007:30:580
1481936993125,4cyclictest1603119-21kworker/u8:2+flush-8:010:00:570
1481936993123,6cyclictest1716544-21ntpq10:51:020
14775522314,18sleep00-21swapper/007:05:530
1481943993026,2cyclictest1582287-21unixbench_singl08:46:082
1481939993025,4cyclictest1771764-21kworker/u8:4+flush-8:011:56:041
1481939993025,3cyclictest1747365-21cron11:25:001
1481939993025,3cyclictest1638593-21irqrtprio09:45:551
1481939993018,9cyclictest1821756-21apt-get12:40:011
1481936993026,3cyclictest1462407-21kworker/u8:2+flush-8:007:46:050
1481936993025,3cyclictest1572810-21kworker/u8:3+flush-8:009:51:040
1481936993022,6cyclictest1732510-21cp11:10:010
14814552303,8sleep20-21swapper/207:06:282
1481943992925,2cyclictest1568371-21cpuspeed_turbos08:35:502
1481939992925,3cyclictest632272-21kworker/u8:1+flush-8:007:18:051
1481939992922,5cyclictest1603119-21kworker/u8:2+flush-8:009:11:061
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional