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2026-04-06 - 05:05

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #3, 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 
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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
Compare latency of primary with shadow system
Characteristics of the highest latencies:
System rack3slot6s.osadl.org (updated Mon Apr 06, 2026 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
65492123111,6sleep10-21swapper/119:05:121
8132211592,18sleep00-21swapper/019:07:230
7584210689,12sleep20-21swapper/219:05:372
7598210584,15sleep30-21swapper/319:05:423
243482660,0sleep30-21swapper/323:23:153
8359992421,2cyclictest0-21swapper/022:25:100
129732220,1sleep3381ktimersoftd/323:11:023
8362991916,2cyclictest0-21swapper/300:15:113
835999190,17cyclictest0-21swapper/000:35:130
8361991815,2cyclictest9779-21kworker/u8:223:42:042
836099181,15cyclictest0-21swapper/122:25:131
835999180,13cyclictest0-21swapper/022:56:040
8361991714,2cyclictest23697-21kworker/u8:223:58:042
8361991714,2cyclictest12739-21kworker/u8:219:36:042
8361991714,2cyclictest11566-21kworker/u8:000:08:042
836199171,14cyclictest0-21swapper/221:44:052
835999170,12cyclictest0-21swapper/022:40:040
835999170,12cyclictest0-21swapper/021:01:040
836299161,3cyclictest0-21swapper/320:10:193
8362991611,3cyclictest25889-21ssh21:45:003
8361991613,2cyclictest6755-21kworker/u8:021:36:052
8361991613,2cyclictest2873-21kworker/u8:323:35:042
8361991613,2cyclictest27695-21kworker/u8:219:59:042
8361991613,2cyclictest1512-21kworker/u8:022:51:042
8361991612,3cyclictest6532-21kworker/u8:120:52:042
836199161,13cyclictest14518-21apt-get20:45:092
836099161,3cyclictest0-21swapper/123:55:501
835999160,14cyclictest21465-21ssh23:54:070
835999160,14cyclictest0-21swapper/000:33:040
835999160,14cyclictest0-21swapper/000:33:040
836299150,3cyclictest6541-21latency_hist21:25:013
836299150,3cyclictest28803-21ssh00:01:023
836299150,13cyclictest10378-21fschecks_count22:35:143
836299150,13cyclictest0-21swapper/322:06:203
836199151,3cyclictest0-21swapper/219:10:422
8361991512,2cyclictest9779-21kworker/u8:223:23:042
8361991512,2cyclictest7890-21kworker/u8:122:36:042
8361991512,2cyclictest6532-21kworker/u8:120:38:042
8361991512,2cyclictest6131-21kworker/u8:100:13:042
8361991512,2cyclictest28237-21kworker/u8:222:55:042
8361991512,2cyclictest27107-21kworker/u8:023:27:042
8361991512,2cyclictest22699-21kworker/u8:121:10:042
8361991512,2cyclictest22699-21kworker/u8:121:10:042
8361991512,2cyclictest22658-21kworker/u8:120:16:042
8361991512,2cyclictest19558-21kworker/u8:220:58:012
8361991512,2cyclictest19015-21kworker/u8:200:29:042
8361991512,2cyclictest1512-21kworker/u8:022:47:032
8361991512,2cyclictest12634-21kworker/u8:022:07:042
836199151,12cyclictest3198-21python23:01:002
836199151,12cyclictest19028-21ssh23:50:562
8361991510,3cyclictest9925-21ssh22:00:542
8361991510,3cyclictest4544-21munin-node2
8361991510,3cyclictest1185-21ssh23:32:462
836199150,13cyclictest24366-21diskmemload23:10:162
836199150,13cyclictest0-21swapper/222:25:042
836199150,13cyclictest0-21swapper/219:30:162
836099151,12cyclictest7511-21awk23:05:181
836099151,12cyclictest0-21swapper/100:22:101
8360991510,3cyclictest13974-21iostat22:05:161
8360991510,3cyclictest0-21swapper/123:02:271
835999151,12cyclictest28714-21apt-get20:00:110
835999151,12cyclictest0-21swapper/022:47:480
835999150,13cyclictest0-21swapper/022:35:470
8362991411,2cyclictest0-21swapper/323:26:403
8362991411,2cyclictest0-21swapper/319:31:003
8362991410,2cyclictest0-21swapper/323:15:163
836299140,2cyclictest0-21swapper/321:56:003
836299140,13cyclictest0-21swapper/322:34:203
836299140,12cyclictest4806-21cat23:36:023
836299140,12cyclictest24366-21diskmemload23:06:203
836299140,12cyclictest0-21swapper/300:20:053
836199149,3cyclictest31016-21munin-node2
8361991411,2cyclictest8703-21kworker/u8:019:24:042
8361991411,2cyclictest6532-21kworker/u8:120:31:042
8361991411,2cyclictest29540-21kworker/u8:221:16:042
8361991411,2cyclictest29540-21kworker/u8:221:16:042
8361991411,2cyclictest22699-21kworker/u8:121:30:012
8361991411,2cyclictest22699-21kworker/u8:121:06:042
8361991411,2cyclictest22658-21kworker/u8:120:13:042
8361991411,2cyclictest22658-21kworker/u8:119:45:042
8361991411,2cyclictest18144-21kworker/u8:222:21:042
8361991411,2cyclictest15154-21kworker/u8:123:15:042
8361991411,2cyclictest14163-21kworker/u8:000:24:042
836199140,9cyclictest0-21swapper/221:21:042
836199140,2cyclictest0-21swapper/222:18:012
836199140,12cyclictest0-21swapper/222:44:042
836199140,12cyclictest0-21swapper/200:39:352
836199140,12cyclictest0-21swapper/200:00:172
836099149,4cyclictest0-21swapper/121:47:281
836099142,7cyclictest0-21swapper/120:00:001
836099142,6cyclictest0-21swapper/119:55:001
836099141,3cyclictest0-21swapper/121:50:181
8360991411,2cyclictest0-21swapper/122:50:131
836099141,11cyclictest0-21swapper/121:36:101
836099140,13cyclictest0-21swapper/122:56:031
836099140,12cyclictest0-21swapper/123:35:131
836099140,12cyclictest0-21swapper/100:25:151
835999140,2cyclictest0-21swapper/023:24:370
835999140,2cyclictest0-21swapper/023:11:370
835999140,2cyclictest0-21swapper/023:04:470
835999140,2cyclictest0-21swapper/000:13:170
835999140,13cyclictest0-21swapper/022:53:370
835999140,13cyclictest0-21swapper/021:27:040
835999140,12cyclictest6139-21ssh23:37:440
835999140,12cyclictest18578-21ssh23:16:490
835999140,12cyclictest0-21swapper/023:30:170
835999140,12cyclictest0-21swapper/021:30:120
8362991310,2cyclictest0-21swapper/323:53:403
8362991310,2cyclictest0-21swapper/323:31:003
8362991310,2cyclictest0-21swapper/323:02:103
8362991310,2cyclictest0-21swapper/300:07:013
836299130,2cyclictest24366-21diskmemload00:28:503
836299130,2cyclictest0-21swapper/323:48:003
836299130,2cyclictest0-21swapper/322:50:113
836299130,2cyclictest0-21swapper/322:16:503
836299130,2cyclictest0-21swapper/322:11:023
836299130,12cyclictest0-21swapper/323:41:523
836299130,12cyclictest0-21swapper/322:42:103
836299130,12cyclictest0-21swapper/322:23:303
836299130,12cyclictest0-21swapper/321:19:403
836299130,12cyclictest0-21swapper/321:19:403
836299130,12cyclictest0-21swapper/319:16:013
836299130,11cyclictest0-21swapper/322:55:423
836299130,11cyclictest0-21swapper/321:35:113
836299130,11cyclictest0-21swapper/321:31:053
8361991310,2cyclictest8703-21kworker/u8:019:29:042
8361991310,2cyclictest24366-21diskmemload00:19:522
8361991310,2cyclictest12739-21kworker/u8:219:40:042
836199130,11cyclictest0-21swapper/223:08:052
836199130,11cyclictest0-21swapper/222:30:592
836099139,2cyclictest0-21swapper/121:29:091
836099138,3cyclictest28661-21ssh23:27:291
836099138,3cyclictest22918-21cpuspeed_turbos19:45:131
836099138,3cyclictest14617-21munin-node1
836099131,3cyclictest0-21swapper/121:15:131
836099131,3cyclictest0-21swapper/121:15:131
836099131,3cyclictest0-21swapper/119:30:181
8360991310,2cyclictest24366-21diskmemload23:50:211
8360991310,2cyclictest24366-21diskmemload22:04:091
8360991310,2cyclictest0-21swapper/122:48:061
8360991310,2cyclictest0-21swapper/122:17:231
8360991310,2cyclictest0-21swapper/121:32:441
8360991310,2cyclictest0-21swapper/121:13:341
8360991310,2cyclictest0-21swapper/121:13:341
8360991310,2cyclictest0-21swapper/100:06:541
836099130,3cyclictest11532-21cut20:35:421
836099130,2cyclictest24366-21diskmemload23:11:331
836099130,2cyclictest0-21swapper/100:11:331
836099130,1cyclictest0-21swapper/100:30:131
836099130,1cyclictest0-21swapper/100:30:131
836099130,12cyclictest0-21swapper/123:30:531
836099130,12cyclictest0-21swapper/121:55:181
836099130,12cyclictest0-21swapper/100:00:141
836099130,11cyclictest207150irq/24-eth122:10:251
836099130,11cyclictest0-21swapper/122:30:281
836099130,11cyclictest0-21swapper/120:55:491
836099130,11cyclictest0-21swapper/120:00:391
836099130,11cyclictest0-21swapper/100:36:021
8359991310,2cyclictest24366-21diskmemload00:05:040
8359991310,2cyclictest0-21swapper/023:58:170
8359991310,2cyclictest0-21swapper/023:49:130
8359991310,2cyclictest0-21swapper/023:06:570
8359991310,2cyclictest0-21swapper/022:10:130
8359991310,2cyclictest0-21swapper/022:06:270
8359991310,2cyclictest0-21swapper/021:51:010
8359991310,2cyclictest0-21swapper/021:20:170
8359991310,2cyclictest0-21swapper/021:13:170
8359991310,2cyclictest0-21swapper/021:13:170
8359991310,2cyclictest0-21swapper/020:15:150
835999130,2cyclictest0-21swapper/022:32:530
835999130,2cyclictest0-21swapper/000:25:570
835999130,12cyclictest0-21swapper/023:41:270
835999130,12cyclictest0-21swapper/023:29:070
835999130,12cyclictest0-21swapper/000:17:270
835999130,12cyclictest0-21swapper/000:04:470
166472130,2sleep10-21swapper/123:49:091
89732120,2sleep30-21swapper/321:26:173
836299129,2cyclictest0-21swapper/323:55:123
836299129,2cyclictest0-21swapper/322:25:553
836299129,2cyclictest0-21swapper/322:00:513
836299129,2cyclictest0-21swapper/321:50:023
836299129,2cyclictest0-21swapper/300:38:123
836299129,2cyclictest0-21swapper/300:34:123
836299129,2cyclictest0-21swapper/300:34:113
836299120,2cyclictest0-21swapper/320:21:023
836299120,11cyclictest0-21swapper/320:31:003
836299120,11cyclictest0-21swapper/300:10:153
836199129,2cyclictest27695-21kworker/u8:220:00:012
836199129,2cyclictest24678-21apt-get19:50:102
836199129,2cyclictest0-21swapper/200:32:042
836199129,2cyclictest0-21swapper/200:32:042
836199120,2cyclictest17997-21ssh22:10:042
836199120,2cyclictest0-21swapper/221:25:132
836199120,11cyclictest0-21swapper/221:46:162
836199120,11cyclictest0-21swapper/220:05:182
836199120,11cyclictest0-21swapper/219:16:022
836099129,2cyclictest0-21swapper/123:15:151
836099129,2cyclictest0-21swapper/122:40:501
836099129,2cyclictest0-21swapper/122:22:391
836099129,2cyclictest0-21swapper/120:50:181
836099129,2cyclictest0-21swapper/120:45:481
836099127,3cyclictest21401-21munin-node1
836099124,7cyclictest4562-21gdm-simple-gree19:42:591
836099121,9cyclictest0-21swapper/120:40:141
836099121,9cyclictest0-21swapper/120:15:171
836099121,9cyclictest0-21swapper/120:10:141
836099121,9cyclictest0-21swapper/120:05:121
836099121,9cyclictest0-21swapper/119:20:141
836099121,9cyclictest0-21swapper/119:15:171
836099121,3cyclictest9928-21munin-node1
836099121,3cyclictest0-21swapper/123:20:111
836099121,3cyclictest0-21swapper/121:00:131
836099121,3cyclictest0-21swapper/100:16:031
836099120,2cyclictest0-21swapper/121:20:081
836099120,11cyclictest0-21swapper/120:30:151
835999129,2cyclictest0-21swapper/022:20:480
835999129,2cyclictest0-21swapper/021:40:480
835999129,2cyclictest0-21swapper/021:36:440
835999129,2cyclictest0-21swapper/021:15:370
835999129,2cyclictest0-21swapper/021:15:370
835999129,2cyclictest0-21swapper/020:20:130
835999127,3cyclictest27301-21ssh21:45:200
835999120,2cyclictest24479-21ssh22:16:010
835999120,2cyclictest0-21swapper/020:40:110
835999120,2cyclictest0-21swapper/019:15:120
835999120,2cyclictest0-21swapper/000:20:110
835999120,11cyclictest12739-21kworker/u8:219:37:040
835999120,11cyclictest0-21swapper/022:02:390
835999120,11cyclictest0-21swapper/021:56:250
835999120,11cyclictest0-21swapper/021:06:010
835999120,11cyclictest0-21swapper/020:55:120
835999120,10cyclictest8703-21kworker/u8:019:32:010
142272120,2sleep20-21swapper/223:45:572
103582120,2sleep124366-21diskmemload23:41:471
836299118,2cyclictest0-21swapper/319:35:173
836299110,7cyclictest0-21swapper/319:24:553
836299110,2cyclictest0-21swapper/321:48:113
836299110,2cyclictest0-21swapper/321:10:303
836299110,2cyclictest0-21swapper/321:10:303
836299110,10cyclictest0-21swapper/319:50:153
836199110,10cyclictest0-21swapper/221:00:192
836199110,10cyclictest0-21swapper/220:28:032
836099118,2cyclictest0-21swapper/121:05:161
836099111,6cyclictest0-21swapper/119:10:421
836099111,3cyclictest0-21swapper/120:20:381
836099110,3cyclictest18966-21df_abs19:35:131
835999118,2cyclictest0-21swapper/020:25:130
835999118,2cyclictest0-21swapper/019:45:170
835999118,2cyclictest0-21swapper/019:25:150
835999118,2cyclictest0-21swapper/019:21:020
836299107,2cyclictest0-21swapper/322:45:413
836299105,3cyclictest20922-21cpuspeed_turbos19:40:123
836299102,5cyclictest0-21swapper/320:55:003
836299101,7cyclictest0-21swapper/320:09:593
836299101,4cyclictest0-21swapper/321:00:003
836099107,2cyclictest0-21swapper/120:25:121
835999100,9cyclictest22658-21kworker/u8:119:52:030
835999100,9cyclictest12739-21kworker/u8:219:41:040
83629996,2cyclictest0-21swapper/319:55:143
83629995,2cyclictest8835-21cut19:10:123
83629994,3cyclictest7071-21sed20:25:153
83629994,3cyclictest11016-21fschecks_time20:35:163
83629992,6cyclictest0-21swapper/320:45:593
83629991,7cyclictest0-21swapper/321:08:593
83629991,7cyclictest0-21swapper/320:19:593
83629990,2cyclictest0-21swapper/319:45:503
83619994,3cyclictest13897-21tail20:41:022
83619990,3cyclictest0-21swapper/220:24:012
83599996,2cyclictest0-21swapper/020:50:150
83599996,2cyclictest0-21swapper/019:55:120
83599994,3cyclictest11051-21gltestperf20:35:160
83599991,6cyclictest0-21swapper/020:10:550
83599991,6cyclictest0-21swapper/019:13:590
32311290,1sleep00-21swapper/020:07:530
83629983,3cyclictest20676-21aten2.4_r3power21:00:143
83629983,3cyclictest14839-21sort19:25:133
83629983,3cyclictest0-21swapper/320:40:163
83629981,5cyclictest28985-21tr20:00:123
83599983,3cyclictest14776-21grep20:45:110
83599972,4cyclictest0-21swapper/020:30:040
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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