You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-07-05 - 03:24

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 #2, slot #7

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
  
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.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack2slot7s.osadl.org (updated Sun Jul 05, 2026 00:43:21)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3554947996046,10cyclictest265-21systemd-journal00:26:412
3554947996046,10cyclictest265-21systemd-journal00:26:412
3554947995041,6cyclictest421-21dbus-daemon22:45:542
355494799494,34cyclictest3668524-21ssh23:15:372
3554946994941,4cyclictest0-21swapper/123:45:391
3554945994824,19cyclictest12650irq/32-eth023:50:370
3554945994737,7cyclictest3708296-21sshd00:20:400
3554946994636,6cyclictest3625384-21fschecks_count22:05:281
3554947994536,6cyclictest3587970-21grep21:00:012
3554946994538,4cyclictest3717916-21grep00:35:481
3554946994538,4cyclictest3717916-21grep00:35:481
3554945994530,12cyclictest3578988-21munin-plugin-st20:30:010
3554946994434,8cyclictest3646133-21ssh22:40:021
3554945994423,15cyclictest151ktimers/022:10:370
3554946994334,6cyclictest3668888-21awk23:15:481
3554945994337,4cyclictest3622434-21if_wlan022:00:300
3554947994234,5cyclictest3694922-21sendmail00:00:012
3554947994223,3cyclictest171rcu_preempt20:20:352
3554945994232,7cyclictest3695122-21ssh00:00:040
355494599422,31cyclictest3641204-21ssh22:30:450
3554947994132,5cyclictest3655230-21grep22:55:002
3554947994132,5cyclictest3655230-21grep22:55:002
3554947994130,7cyclictest265-21systemd-journal23:08:092
3554946994136,2cyclictest0-21swapper/122:00:011
3554946994133,4cyclictest3597177-21latency_hist21:20:021
3554946994133,4cyclictest1002-21mta-sts-daemon22:02:541
3554945994131,7cyclictest3650494-21mailstats22:45:570
3554947994031,5cyclictest3710323-21latency_hist00:25:032
355494799403,10cyclictest36-21ksoftirqd/223:00:362
3554947994029,7cyclictest3609413-21cron21:40:012
3554947994029,6cyclictest0-21swapper/221:50:002
3554947994029,6cyclictest0-21swapper/221:50:002
355494799402,32cyclictest3638023-21ssh22:25:362
3554946994032,5cyclictest421-21dbus-daemon22:50:011
3554946994032,5cyclictest3612511-21munin-plugin-st21:45:011
3554946994032,5cyclictest3603274-21cron21:30:011
3554946994032,5cyclictest3591102-21latency_hist21:10:021
3554945994033,4cyclictest3615550-21idleruntime-cro21:50:000
3554945994033,4cyclictest3615550-21idleruntime-cro21:50:000
3554945994032,5cyclictest3687382-21unixbench_multi23:45:480
3554945994031,6cyclictest3637833-21missed_timers22:25:310
3554945994031,5cyclictest421-21dbus-daemon00:09:340
355494599401,34cyclictest3677684-21ssh23:30:390
3554947993930,6cyclictest1813734-21cupsd22:12:282
3554947993923,11cyclictest0-21swapper/200:15:402
3554946993932,4cyclictest3683149-21sshd23:40:251
3554946993931,4cyclictest1002-21mta-sts-daemon21:54:121
3554947993831,4cyclictest0-21swapper/222:05:482
3554947993830,5cyclictest3559961-21fschecks_count19:25:282
3554947993829,6cyclictest3704091-21cron00:15:012
3554946993832,3cyclictest0-21swapper/100:25:411
3554946993832,3cyclictest0-21swapper/100:25:411
3554946993830,5cyclictest3594074-21ssh21:15:011
3554947993730,4cyclictest3554944-21cyclictest22:30:392
3554947993730,4cyclictest1002-21mta-sts-daemon00:30:052
3554946993730,5cyclictest0-21swapper/123:25:021
3554946993730,4cyclictest0-21swapper/121:45:421
3554946993730,4cyclictest0-21swapper/121:45:421
3554946993728,6cyclictest420-21avahi-daemon19:20:471
3554946993725,8cyclictest3628340-21cpu22:10:261
3554945993730,4cyclictest3646113-21sendmail22:40:010
3554945993730,4cyclictest3591686-21gltestperf21:10:300
3554945993729,5cyclictest1813736-21cups-browsed21:55:020
3554945993722,5cyclictest0-21swapper/020:00:010
3554945993719,14cyclictest12650irq/32-eth023:00:360
3554947993629,4cyclictest3682717-21ssh23:40:012
3554947993629,4cyclictest1001-21mta-sts-daemon22:59:332
3554947993629,3cyclictest0-21swapper/223:40:342
3554947993628,5cyclictest3583999-21fschecks_count20:45:282
3554947993627,6cyclictest439-21systemd-logind20:45:012
3554947993625,8cyclictest3676602-21cut23:30:022
3554947993625,7cyclictest421-21dbus-daemon22:04:022
3554947993625,5cyclictest0-21swapper/222:20:342
355494799361,31cyclictest3601345-21ssh21:25:372
3554946993629,3cyclictest0-21swapper/119:45:301
3554946993628,5cyclictest0-21swapper/119:40:011
3554945993628,4cyclictest3574504-21kworker/u8:4-xprtiod21:25:250
355494799355,27cyclictest3590986-21diskmemload22:35:382
355494799354,24cyclictest3619838-21grep21:55:432
3554947993528,4cyclictest0-21swapper/220:20:002
3554947993527,5cyclictest3688792-21cron23:50:012
3554947993527,4cyclictest0-21swapper/223:50:252
3554947993527,4cyclictest0-21swapper/221:15:402
3554947993526,4cyclictest0-21swapper/219:50:012
3554946993527,5cyclictest3587993-21sendmail21:00:011
3554946993527,4cyclictest0-21swapper/100:05:311
3554946993526,5cyclictest3634094-21latency_hist22:20:031
3554945993529,4cyclictest3619276-21fschecks_time21:55:290
355494599352,7cyclictest0-21swapper/020:40:340
3554945993526,5cyclictest0-21swapper/022:20:290
3554945993524,4cyclictest3647747-21head22:40:490
355494599352,25cyclictest3607579-21grep21:35:430
355494799343,24cyclictest3717375-21ssh00:35:372
355494799343,24cyclictest3717375-21ssh00:35:372
3554947993428,3cyclictest0-21swapper/223:25:012
3554947993427,3cyclictest0-21swapper/222:20:012
3554947993426,5cyclictest3590015-21fschecks_time21:05:282
355494699343,20cyclictest3604375-21ssh21:30:381
3554946993428,3cyclictest0-21swapper/100:00:041
3554946993426,5cyclictest0-21swapper/123:10:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional