You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-05-03 - 16:12

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 #0, 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
  
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 rack0slot4s.osadl.org (updated Sun May 03, 2026 00:46:13)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
18760382377371,4sleep130-21swapper/1319:09:135
18758432373367,4sleep50-21swapper/519:07:1211
18725852373367,4sleep110-21swapper/1119:05:083
18760242365359,4sleep30-21swapper/319:09:029
18757862362342,13sleep120-21swapper/1219:06:314
18760122357337,13sleep100-21swapper/1019:08:532
18733992357349,5sleep00-21swapper/019:05:140
18760112355335,13sleep90-21swapper/919:08:5215
18758702355335,13sleep70-21swapper/719:07:3013
18755742355336,13sleep140-21swapper/1419:05:286
18758902353334,12sleep40-21swapper/419:07:4310
18757802353333,13sleep60-21swapper/619:06:2512
18758142351331,13sleep150-21swapper/1519:06:497
18758392350330,13sleep10-21swapper/119:07:071
18757992349329,13sleep80-21swapper/819:06:4214
18757572349329,13sleep20-21swapper/219:06:048
1876556993939,0cyclictest0-21swapper/1123:12:513
1876530993936,3cyclictest0-21swapper/223:52:398
1876530993936,3cyclictest0-21swapper/223:52:388
1876565993837,1cyclictest2190177-21kworker/14:2-events00:09:396
1876530993736,1cyclictest2150009-21ssh23:21:498
1876530993736,1cyclictest2078411-21kworker/u32:0+events_unbound00:30:248
1876530993735,0cyclictest0-21swapper/223:49:418
1876530993735,0cyclictest0-21swapper/223:49:418
1876530993731,2cyclictest0-21swapper/221:40:498
1876530993728,6cyclictest1878952-21libvirt-mem19:10:188
1876532993636,0cyclictest0-21swapper/322:16:379
187653099364,29cyclictest0-21swapper/200:20:138
1876530993634,2cyclictest1953458-21/usr/sbin/munin20:40:148
1876530993634,2cyclictest1953458-21/usr/sbin/munin20:40:148
1876530993633,3cyclictest0-21swapper/222:34:378
1876530993633,3cyclictest0-21swapper/221:59:028
1876530993633,3cyclictest0-21swapper/221:33:108
1876565993535,0cyclictest0-21swapper/1422:59:046
1876556993535,0cyclictest0-21swapper/1121:46:073
1876553993512,1cyclictest0-21swapper/1020:47:252
187655199358,27cyclictest0-21swapper/900:04:5915
1876551993534,1cyclictest1051ktimers/922:59:0515
1876530993533,0cyclictest0-21swapper/221:53:338
1876530993532,3cyclictest0-21swapper/222:50:298
1876530993531,2cyclictest2206399-21kworker/u32:3+events_unbound00:38:578
187655699345,29cyclictest0-21swapper/1121:53:113
1876551993428,4cyclictest0-21swapper/922:45:4715
1876530993434,0cyclictest0-21swapper/200:13:278
1876530993432,2cyclictest0-21swapper/221:35:028
1876530993432,0cyclictest0-21swapper/221:47:168
1876530993431,3cyclictest0-21swapper/222:35:498
1876530993431,1cyclictest0-21swapper/222:41:558
1876565993333,0cyclictest0-21swapper/1422:29:166
187655199334,0cyclictest0-21swapper/922:05:5015
1876532993333,0cyclictest0-21swapper/323:12:519
1876532993333,0cyclictest0-21swapper/323:09:179
1876532993333,0cyclictest0-21swapper/300:12:519
1876532993332,0cyclictest211rcu_preempt23:58:319
1876530993333,0cyclictest0-21swapper/222:27:178
187653099333,29cyclictest0-21swapper/200:00:398
1876530993331,2cyclictest2002263-21ssh21:27:298
1876530993331,2cyclictest0-21swapper/222:22:268
1876530993331,2cyclictest0-21swapper/222:19:498
1876530993331,0cyclictest411rcuc/222:48:218
1876530993331,0cyclictest0-21swapper/223:25:178
1876530993331,0cyclictest0-21swapper/222:05:558
1876530993331,0cyclictest0-21swapper/222:01:488
1876530993329,2cyclictest0-21swapper/221:12:118
1876530993329,1cyclictest211rcu_preempt23:03:438
1876530993328,3cyclictest2148007-21kworker/2:2+mm_percpu_wq23:37:258
187653099331,29cyclictest2148007-21kworker/2:2-events23:30:478
187653099330,31cyclictest1769-21arpwatch00:17:358
187653099330,31cyclictest0-21swapper/223:13:378
187653099330,30cyclictest0-21swapper/221:15:188
1876567993229,2cyclictest2078411-21kworker/u32:0+flush-259:023:40:177
187656799320,29cyclictest0-21swapper/1523:30:147
1876565993232,0cyclictest0-21swapper/1421:57:196
1876556993232,0cyclictest0-21swapper/1123:22:213
1876551993232,0cyclictest0-21swapper/921:46:0615
1876551993232,0cyclictest0-21swapper/921:17:3615
1876532993232,0cyclictest0-21swapper/300:06:539
1876530993231,1cyclictest0-21swapper/200:25:498
1876530993230,2cyclictest0-21swapper/219:25:178
1876530993230,2cyclictest0-21swapper/219:15:198
1876530993230,1cyclictest0-21swapper/223:56:418
1876530993227,3cyclictest0-21swapper/220:35:208
1876530993227,3cyclictest0-21swapper/220:35:198
187653099321,0cyclictest1930284-21kworker/2:2-events20:25:118
187653099321,0cyclictest0-21swapper/223:15:078
187653099320,29cyclictest0-21swapper/222:11:258
187653099320,29cyclictest0-21swapper/200:05:538
187652699320,1cyclictest0-21swapper/122:10:141
187656799310,30cyclictest0-21swapper/1520:56:277
1876565993131,0cyclictest0-21swapper/1422:30:296
1876565993131,0cyclictest0-21swapper/1421:47:086
1876565993131,0cyclictest0-21swapper/1420:50:136
187656599311,30cyclictest151-21ksoftirqd/1423:09:166
187655899310,30cyclictest0-21swapper/1219:15:064
1876556993131,0cyclictest0-21swapper/1123:38:063
1876556993131,0cyclictest0-21swapper/1122:45:033
1876556993131,0cyclictest0-21swapper/1121:29:123
187655699310,30cyclictest1221rcuc/1122:21:353
1876553993130,1cyclictest2058536-21kworker/10:0+events22:42:472
187655399310,30cyclictest0-21swapper/1019:25:142
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional