You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-07-10 - 07:52

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 Fri Jul 10, 2026 00:43:19)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
371352996232,20cyclictest12650irq/32-eth022:30:430
371352996044,12cyclictest535347-21latency_hist00:40:030
371353995818,27cyclictest395562-21/usr/sbin/munin20:30:291
371353995818,27cyclictest395562-21/usr/sbin/munin20:30:291
371354995647,5cyclictest510865-21ssh00:00:012
371354995647,4cyclictest0-21swapper/223:50:462
371354995344,6cyclictest485-21in:imuxsock22:40:012
371354995244,5cyclictest526090-21systemd-run00:25:012
371352995023,24cyclictest532123-21cron00:35:010
371354994842,3cyclictest0-21swapper/221:20:012
371353994839,6cyclictest2803590-21cups-browsed21:59:421
371352994841,4cyclictest0-21swapper/022:10:430
371354994736,5cyclictest0-21swapper/222:15:442
371353994739,5cyclictest495695-21systemd-run23:35:011
371353994739,5cyclictest495695-21systemd-run23:35:011
371352994726,18cyclictest1000-21mta-sts-daemon22:55:300
371354994639,3cyclictest0-21swapper/223:50:012
371354994636,6cyclictest1-21systemd23:20:022
371354994635,8cyclictest420-21avahi-daemon23:39:002
371353994638,5cyclictest413530-21idleruntime-cro21:20:001
371352994637,7cyclictest151ktimers/000:00:460
371352994633,10cyclictest450110-21munin-plugin-st22:20:010
371353994537,5cyclictest478018-21aten_r2power_vo23:05:301
371352994537,5cyclictest417857-21proc_pri21:25:480
371352994515,27cyclictest502454-21fschecks_time23:45:320
371352994438,4cyclictest510908-21lockfile-create00:00:010
371352994411,10cyclictest414901-21grep21:20:500
371352994332,7cyclictest0-21swapper/022:00:020
371352994321,4cyclictest383333-21cron19:50:010
371352994320,21cyclictest488029-21xargs23:20:490
371354994233,6cyclictest2803590-21cups-browsed21:35:512
371354994231,7cyclictest1000-21mta-sts-daemon23:01:462
37135399424,30cyclictest499856-21ssh23:40:411
371353994234,5cyclictest520087-21latency_hist00:15:021
371353994234,5cyclictest421-21dbus-daemon00:40:021
371353994234,5cyclictest419670-21systemd-run21:30:011
371352994235,4cyclictest442459-21timerandwakeup22:05:490
371352994217,5cyclictest496511-21kernelversion23:35:340
37135499413,31cyclictest478573-21ssh23:05:412
371354994129,9cyclictest383354-21sh19:50:012
371353994133,5cyclictest454826-21unixbench_singl22:25:531
371352994134,4cyclictest407394-21munin-run21:10:010
37135299412,12cyclictest12650irq/32-eth023:05:470
371352994120,2cyclictest0-21swapper/022:40:320
371352994120,2cyclictest0-21swapper/022:40:320
371354994034,3cyclictest0-21swapper/221:45:012
371354994033,3cyclictest0-21swapper/200:20:012
37135499401,32cyclictest530270-21ssh00:30:442
371353994034,3cyclictest0-21swapper/122:20:011
371353994030,5cyclictest0-21swapper/100:25:421
371352994022,4cyclictest518571-21unixbench_multi00:10:520
37135299402,19cyclictest469458-21rm22:50:410
37135499395,23cyclictest408517-21ssh21:10:402
37135499395,23cyclictest408517-21ssh21:10:402
371354993931,5cyclictest432957-21ssh21:50:392
371354993930,5cyclictest529121-21systemd-run00:30:012
37135299399,11cyclictest12650irq/32-eth000:15:370
371352993911,18cyclictest12650irq/32-eth021:40:430
371354993827,7cyclictest420-21avahi-daemon22:11:162
371354993826,6cyclictest457422-21proc_pri22:30:472
37135499382,31cyclictest442035-21ssh22:05:372
371354993823,12cyclictest511290-21/usr/sbin/munin00:00:402
371353993831,4cyclictest1001-21mta-sts-daemon23:17:211
371353993828,8cyclictest378152-21needreboot19:30:351
371353993827,8cyclictest523991-21missed_timers00:20:371
371352993831,4cyclictest440991-21ssh22:05:000
371352993831,4cyclictest440991-21ssh22:05:000
371352993829,6cyclictest420-21avahi-daemon00:25:500
371352993821,4cyclictest1002-21mta-sts-daemon00:23:170
371352993815,16cyclictest12650irq/32-eth023:40:380
37135499374,23cyclictest481695-21ssh23:10:442
371354993729,4cyclictest1002-21mta-sts-daemon21:48:132
371354993729,4cyclictest0-21swapper/222:40:392
371354993729,4cyclictest0-21swapper/222:40:392
371354993728,5cyclictest1002-21mta-sts-daemon00:36:192
371354993728,4cyclictest0-21swapper/223:30:382
371354993728,4cyclictest0-21swapper/223:30:382
371354993726,7cyclictest427-21polkitd21:08:542
37135499372,28cyclictest417855-21rm21:25:482
37135499370,4cyclictest171rcu_preempt20:00:462
371353993730,4cyclictest471364-21cron22:55:001
371353993730,4cyclictest1002-21mta-sts-daemon23:39:511
371353993729,6cyclictest1003-21mta-sts-daemon22:20:491
371352993729,4cyclictest0-21swapper/021:45:380
371352993726,7cyclictest12650irq/32-eth021:50:430
37135499363,25cyclictest420765-21ssh21:30:402
371354993627,6cyclictest0-21swapper/222:25:462
371353993629,5cyclictest371351-21cyclictest22:57:111
371353993629,4cyclictest508360-21aten_r2power_po23:55:301
371353993627,6cyclictest567-21gdbus00:30:491
371353993614,15cyclictest421-21dbus-daemon20:35:421
37135499355,23cyclictest2803590-21cups-browsed19:25:382
371354993528,4cyclictest518631-21unixbench_singl00:10:522
371354993527,5cyclictest514452-21aten_r2power_po00:05:312
371353993529,3cyclictest0-21swapper/121:45:011
371353993528,4cyclictest459887-21fschecks_time22:35:311
371353993528,3cyclictest0-21swapper/100:05:341
371353993526,6cyclictest371358-21true19:10:011
371353993525,5cyclictest1001-21mta-sts-daemon22:02:451
371353993525,5cyclictest1001-21mta-sts-daemon22:02:451
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional