You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-05-01 - 15:27

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 #e, slot #6

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
  TI
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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackeslot6s.osadl.org (updated Fri May 01, 2026 12:44:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
388248999645,40cyclictest0-21swapper/110:35:011
388248899615,17cyclictest20850irq/208-8000000.ethernet09:50:010
388248899561,25cyclictest15-21rcuc/008:25:010
3882489995539,12cyclictest231ktimers/108:45:121
388249199541,33cyclictest0-21swapper/207:35:012
3882489995447,4cyclictest3893799-21munin-plugin-st08:15:001
3882489995447,4cyclictest231ktimers/111:40:011
3882489995433,16cyclictest231ktimers/107:30:151
3882488995441,9cyclictest1283-21cron11:45:010
388248899542,4cyclictest3938040-21tail12:30:280
3882489995343,6cyclictest3926162-21munin-plugin-st11:25:001
3882488995244,4cyclictest167350irq/118-8000000.ethernet-tx011:00:170
3882488995244,4cyclictest167350irq/118-8000000.ethernet-tx011:00:170
3882488995227,21cyclictest20650irq/252-8000000.ethernet10:35:010
3882488995127,20cyclictest19750irq/27-20000000.i2c07:55:140
3882491995037,8cyclictest311ktimers/211:10:102
3882491995034,11cyclictest0-21swapper/209:25:012
3882491995034,11cyclictest0-21swapper/209:25:002
3882488994943,4cyclictest3882482-21cyclictest10:30:000
3882488994941,4cyclictest167350irq/118-8000000.ethernet-tx009:40:210
3882491994834,9cyclictest0-21swapper/211:40:012
3882489994838,7cyclictest231ktimers/107:45:121
388248999482,16cyclictest0-21swapper/109:30:021
3882488994837,8cyclictest3908015-21ptp4l09:35:270
3882488994837,8cyclictest3908015-21ptp4l09:35:270
388249199475,19cyclictest30-21rcuc/210:25:012
3882489994710,20cyclictest231ktimers/110:30:011
3882491994639,5cyclictest311ktimers/210:35:032
3882491994633,10cyclictest3898021-21sendmail08:39:592
3882488994625,19cyclictest0-21swapper/012:35:250
3882491994516,15cyclictest311ktimers/208:45:122
3882489994535,5cyclictest0-21swapper/112:00:001
3882489994534,8cyclictest3929535-21grep11:40:281
388248899456,6cyclictest0-21swapper/009:25:010
388248899456,6cyclictest0-21swapper/009:25:010
3882488994539,3cyclictest167350irq/118-8000000.ethernet-tx011:15:120
388248899452,6cyclictest3911273-21meminfo09:55:220
3882491994433,8cyclictest3894649-21sendmail08:20:002
3882489994435,5cyclictest0-21swapper/108:00:281
3882489994418,13cyclictest3882482-21cyclictest08:35:121
388248899447,7cyclictest3884604-21rm07:20:010
388248899447,7cyclictest3884604-21rm07:20:010
3882488994439,3cyclictest0-21swapper/011:30:160
3882488994435,6cyclictest3935611-21sh12:20:000
3882488994433,6cyclictest167350irq/118-8000000.ethernet-tx008:00:280
388248899442,5cyclictest3920243-21munin-run10:50:000
388248899442,39cyclictest0-21swapper/010:20:000
388248899442,39cyclictest0-21swapper/010:20:000
3882491994326,11cyclictest0-21swapper/207:35:242
3882489994336,4cyclictest14-21rcu_preempt09:05:211
3882489994334,5cyclictest3891264-21cat08:00:001
3882489994330,9cyclictest0-21swapper/112:05:281
3882489994327,11cyclictest3936364-21grep12:20:281
3882488994336,4cyclictest167350irq/118-8000000.ethernet-tx010:55:230
3882488994336,4cyclictest167350irq/118-8000000.ethernet-tx009:15:230
3882488994336,4cyclictest167350irq/118-8000000.ethernet-tx007:30:160
3882491994227,11cyclictest3930661-21/usr/sbin/munin11:50:182
3882491994227,11cyclictest3930661-21/usr/sbin/munin11:50:182
388248999424,2cyclictest0-21swapper/112:35:001
3882489994235,5cyclictest14-21rcu_preempt10:40:181
3882488994236,3cyclictest167350irq/118-8000000.ethernet-tx011:25:110
388248899422,9cyclictest0-21swapper/011:40:010
3882488994229,9cyclictest0-21swapper/011:55:200
388248899422,4cyclictest0-21swapper/008:26:510
388248899422,3cyclictest3898606-21ps08:40:270
388248899421,2cyclictest0-21swapper/009:05:000
3882491994131,5cyclictest0-21swapper/208:55:272
3882491994129,8cyclictest0-21swapper/211:25:272
3882491994110,14cyclictest3907599-21/usr/sbin/munin09:35:192
3882491994110,14cyclictest3907599-21/usr/sbin/munin09:35:192
3882489994129,8cyclictest3925312-21sendmail11:20:001
3882488994137,2cyclictest0-21swapper/011:20:110
3882488994134,4cyclictest20850irq/208-8000000.ethernet10:10:010
3882488994133,4cyclictest167350irq/118-8000000.ethernet-tx010:55:010
3882488994127,12cyclictest131ktimers/008:50:110
388248899411,5cyclictest3896798-21irqstats08:30:220
388248899411,5cyclictest3896798-21irqstats08:30:220
388248899411,38cyclictest0-21swapper/007:35:150
388248899411,35cyclictest0-21swapper/012:00:020
388249199407,9cyclictest0-21swapper/210:35:012
3882491994028,8cyclictest0-21swapper/212:20:282
3882491994027,8cyclictest0-21swapper/207:45:292
3882491994023,9cyclictest0-21swapper/210:05:272
3882491994023,10cyclictest0-21swapper/207:20:012
3882491994023,10cyclictest0-21swapper/207:20:012
388249199401,35cyclictest0-21swapper/209:30:022
388248999404,3cyclictest0-21swapper/107:15:021
3882489994032,5cyclictest0-21swapper/107:20:261
3882489994032,4cyclictest14-21rcu_preempt10:15:191
3882489994032,4cyclictest14-21rcu_preempt10:15:181
388248999403,13cyclictest24-21ksoftirqd/109:35:001
3882489994018,8cyclictest231ktimers/107:15:121
3882489994018,8cyclictest231ktimers/107:15:121
3882488994026,9cyclictest0-21swapper/008:55:250
3882488994026,11cyclictest131ktimers/010:35:130
388248899402,5cyclictest0-21swapper/007:40:130
388248899401,37cyclictest0-21swapper/008:10:260
388248899401,36cyclictest3909597-21memory09:45:260
388248899401,36cyclictest0-21swapper/008:15:220
3882491993929,5cyclictest0-21swapper/207:55:252
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional