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2026-08-25 - 11:36

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 all highest latencies:
System rack3slot6s.osadl.org (updated Tue Aug 25, 2026 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1790211088,17sleep30-21swapper/319:09:193
1730211084,20sleep00-21swapper/019:08:310
1542211079,6sleep10-21swapper/119:06:081
1799210383,15sleep20-21swapper/219:09:252
29682740,0sleep20-21swapper/220:31:032
243382720,0sleep20-21swapper/221:49:132
204262700,0sleep10-21swapper/123:23:551
1872992623,2cyclictest25624-21kworker/u8:023:58:041
1872992522,2cyclictest9124-21kworker/u8:222:43:041
1872992522,2cyclictest6553-21kworker/u8:222:07:041
1872992320,2cyclictest31962-21kworker/u8:200:18:071
1872992320,2cyclictest25624-21kworker/u8:023:32:011
1872992320,2cyclictest19277-21kworker/u8:223:35:051
1872992320,2cyclictest16130-21kworker/u8:121:33:051
1872992320,2cyclictest14092-21kworker/u8:223:54:051
227002220,0sleep10-21swapper/100:37:431
1872992219,2cyclictest3997-21kworker/u8:123:46:041
1872992219,2cyclictest27311-21kworker/u8:023:17:051
1872992219,2cyclictest26784-21kworker/u8:221:22:051
1872992219,2cyclictest22060-21kworker/u8:222:57:041
1872992219,2cyclictest18119-21kworker/u8:019:51:051
1872992219,2cyclictest18119-21kworker/u8:019:51:041
1872992219,2cyclictest14092-21kworker/u8:200:02:051
187299220,19cyclictest0-21swapper/100:07:041
187199221,3cyclictest3383-21ssh23:40:130
98652210,0sleep30-21swapper/322:06:303
187399210,19cyclictest0-21swapper/222:40:112
1872992118,2cyclictest897-21kworker/u8:021:58:051
1872992118,2cyclictest32116-21kworker/u8:219:48:051
1872992118,2cyclictest31962-21kworker/u8:200:32:041
1872992118,2cyclictest27311-21kworker/u8:023:09:041
1872992118,2cyclictest16130-21kworker/u8:121:07:041
187199210,19cyclictest0-21swapper/022:40:110
1872992017,2cyclictest32653-21kworker/u8:223:04:021
1872992017,2cyclictest31962-21kworker/u8:200:20:041
1872992017,2cyclictest1830-21kworker/u8:019:19:041
1872992017,2cyclictest12682-21kworker/u8:100:29:051
187499190,17cyclictest0-21swapper/321:20:133
187399190,2cyclictest0-21swapper/200:30:112
1872991916,2cyclictest26216-21kworker/u8:220:28:041
1872991916,2cyclictest19520-21kworker/u8:021:16:041
1872991916,2cyclictest16130-21kworker/u8:121:27:041
1872991916,2cyclictest10421-21kworker/u8:221:53:041
1872991916,2cyclictest10421-21kworker/u8:221:42:041
187299190,2cyclictest0-21swapper/121:47:051
187299190,18cyclictest0-21swapper/122:36:051
1872991815,2cyclictest29233-21kworker/u8:020:18:011
1872991815,2cyclictest25624-21kworker/u8:023:40:051
1872991815,2cyclictest20206-21kworker/u8:120:12:021
1872991815,2cyclictest20206-21kworker/u8:119:57:051
187299180,2cyclictest0-21swapper/122:50:051
187299180,17cyclictest0-21swapper/121:38:051
1872991714,2cyclictest6081-21kworker/u8:020:57:051
1872991714,2cyclictest5988-21kworker/u8:123:25:051
1872991714,2cyclictest20206-21kworker/u8:120:05:051
1872991714,2cyclictest1830-21kworker/u8:019:14:021
1872991714,2cyclictest16130-21kworker/u8:121:14:021
1872991714,2cyclictest10072-21kworker/u8:019:36:051
187299170,15cyclictest0-21swapper/122:13:051
187299170,12cyclictest0-21swapper/122:25:051
1871991712,3cyclictest3262-21avahi-daemon00:05:140
187199170,15cyclictest0-21swapper/023:00:070
187299163,2cyclictest15477-21munin-node1
1872991613,2cyclictest32116-21kworker/u8:219:26:051
1872991613,2cyclictest19445-21kworker/u8:222:33:041
187299160,2cyclictest0-21swapper/122:49:051
187299160,2cyclictest0-21swapper/122:18:041
1871991613,2cyclictest0-21swapper/022:20:000
1871991611,3cyclictest0-21swapper/023:20:010
105862160,0sleep00-21swapper/020:50:150
187499151,3cyclictest3649-21snmpd00:31:013
187499151,12cyclictest13673-21ssh23:53:213
1874991510,3cyclictest1037-21ssh00:14:303
1874991510,3cyclictest0-21swapper/300:24:013
187499150,3cyclictest0-21swapper/321:45:003
187499150,13cyclictest0-21swapper/322:30:153
187499150,13cyclictest0-21swapper/320:45:013
187399151,3cyclictest30784-21hddtemp_smartct20:20:152
187399151,12cyclictest25516-21ssh22:55:312
1873991511,2cyclictest0-21swapper/223:15:472
1873991510,3cyclictest24321-21sort00:40:002
1873991510,3cyclictest0-21swapper/222:32:192
187399150,13cyclictest0-21swapper/222:50:072
1872991512,2cyclictest26216-21kworker/u8:221:03:051
1872991512,2cyclictest1789-21kworker/u8:120:38:051
1871991512,2cyclictest0-21swapper/022:20:000
187199151,12cyclictest7927-21ssh23:10:260
187199151,12cyclictest2849-21rs:main0
187199151,12cyclictest0-21swapper/021:29:440
1871991510,3cyclictest0-21swapper/023:28:140
1871991510,3cyclictest0-21swapper/019:55:200
187199150,3cyclictest0-21swapper/022:35:050
1874991411,2cyclictest0-21swapper/322:45:163
187499141,11cyclictest25534-21ssh22:22:583
187499141,11cyclictest0-21swapper/321:48:233
1874991410,2cyclictest0-21swapper/322:44:583
187499140,12cyclictest24945-21ssh23:28:233
187499140,12cyclictest17926-21diskmemload23:40:033
187499140,12cyclictest0-21swapper/300:25:203
187399149,3cyclictest0-21swapper/222:11:502
1873991411,2cyclictest810-21sshd23:04:082
1873991411,2cyclictest0-21swapper/223:30:182
1873991411,2cyclictest0-21swapper/221:23:282
1873991411,2cyclictest0-21swapper/219:10:182
187399140,2cyclictest27053-21ntpq20:10:172
187399140,2cyclictest0-21swapper/223:44:282
187399140,13cyclictest0-21swapper/222:19:072
187399140,13cyclictest0-21swapper/221:33:182
187399140,13cyclictest0-21swapper/221:13:482
187399140,12cyclictest0-21swapper/219:45:192
187399140,12cyclictest0-21swapper/219:15:142
187299142,6cyclictest0-21swapper/120:50:011
1872991411,2cyclictest29233-21kworker/u8:020:20:051
187299140,2cyclictest0-21swapper/122:01:051
187299140,2cyclictest0-21swapper/119:33:041
187299140,12cyclictest0-21swapper/122:20:121
187199149,3cyclictest0-21swapper/022:03:240
187199142,7cyclictest0-21swapper/022:15:000
1871991411,2cyclictest0-21swapper/022:47:470
187199141,11cyclictest6220-21ssh23:09:390
1871991410,2cyclictest0-21swapper/022:30:010
1871991410,2cyclictest0-21swapper/021:53:360
1871991410,2cyclictest0-21swapper/000:30:560
187199140,12cyclictest19898-21munin-node0
187199140,12cyclictest13581-21sendmail-mta23:54:570
1874991310,2cyclictest17926-21diskmemload23:00:113
1874991310,2cyclictest17926-21diskmemload00:07:293
1874991310,2cyclictest13626-21ssh21:37:493
1874991310,2cyclictest0-21swapper/323:57:513
1874991310,2cyclictest0-21swapper/323:20:393
1874991310,2cyclictest0-21swapper/323:15:133
1874991310,2cyclictest0-21swapper/322:29:493
1874991310,2cyclictest0-21swapper/321:55:333
1874991310,2cyclictest0-21swapper/321:50:083
1874991310,2cyclictest0-21swapper/321:25:313
1874991310,2cyclictest0-21swapper/321:15:113
187499130,2cyclictest0-21swapper/322:15:183
187499130,12cyclictest0-21swapper/322:55:133
187499130,12cyclictest0-21swapper/322:52:093
187499130,12cyclictest0-21swapper/322:04:113
187499130,12cyclictest0-21swapper/319:11:023
187499130,11cyclictest9399-21ssh23:12:033
187499130,11cyclictest6993-21rm22:36:303
187499130,11cyclictest0-21swapper/323:45:183
187499130,11cyclictest0-21swapper/323:30:523
187499130,11cyclictest0-21swapper/321:30:403
1873991310,2cyclictest0-21swapper/223:11:022
1873991310,2cyclictest0-21swapper/222:35:202
1873991310,2cyclictest0-21swapper/222:00:132
1873991310,2cyclictest0-21swapper/220:15:192
1873991310,2cyclictest0-21swapper/219:20:182
1873991310,2cyclictest0-21swapper/200:23:282
1873991310,2cyclictest0-21swapper/200:00:112
187399130,2cyclictest0-21swapper/223:56:382
187399130,2cyclictest0-21swapper/223:25:122
187399130,2cyclictest0-21swapper/221:59:572
187399130,2cyclictest0-21swapper/221:05:162
187399130,2cyclictest0-21swapper/220:50:162
187399130,2cyclictest0-21swapper/219:30:172
187399130,12cyclictest0-21swapper/223:54:292
187399130,12cyclictest0-21swapper/221:40:172
187399130,12cyclictest0-21swapper/221:15:472
187399130,12cyclictest0-21swapper/220:45:122
187399130,12cyclictest0-21swapper/219:25:172
187399130,11cyclictest17926-21diskmemload22:48:122
187399130,11cyclictest0-21swapper/221:51:542
187299130,2cyclictest0-21swapper/120:54:041
187299130,2cyclictest0-21swapper/120:34:051
187299130,2cyclictest0-21swapper/100:13:041
187199139,2cyclictest0-21swapper/000:19:240
187199133,8cyclictest28081-21munin-node0
187199132,7cyclictest0-21swapper/022:50:020
187199132,6cyclictest0-21swapper/023:50:000
187199132,6cyclictest0-21swapper/021:34:590
187199131,10cyclictest16456-21df_abs19:45:130
1871991310,2cyclictest10257-21ssh22:07:050
1871991310,2cyclictest0-21swapper/023:21:020
1871991310,2cyclictest0-21swapper/021:55:220
1871991310,2cyclictest0-21swapper/021:45:190
1871991310,2cyclictest0-21swapper/021:15:350
1871991310,2cyclictest0-21swapper/020:40:130
1871991310,2cyclictest0-21swapper/020:30:150
1871991310,2cyclictest0-21swapper/000:14:420
187199130,2cyclictest0-21swapper/022:55:170
187199130,11cyclictest0-21swapper/000:35:050
12362130,2sleep00-21swapper/023:37:270
187499129,2cyclictest0-21swapper/322:10:483
187499129,2cyclictest0-21swapper/320:46:043
187499129,2cyclictest0-21swapper/319:40:173
187499128,3cyclictest6067-21apt-get19:20:063
187499120,2cyclictest0-21swapper/320:50:303
187499120,2cyclictest0-21swapper/300:36:503
187499120,11cyclictest0-21swapper/323:35:233
187499120,11cyclictest0-21swapper/323:05:343
187499120,11cyclictest0-21swapper/321:13:273
187499120,11cyclictest0-21swapper/321:00:133
187499120,11cyclictest0-21swapper/320:56:023
187499120,11cyclictest0-21swapper/319:50:153
187499120,11cyclictest0-21swapper/319:50:143
187499120,11cyclictest0-21swapper/300:16:243
187499120,11cyclictest0-21swapper/300:00:393
187399129,2cyclictest0-21swapper/223:22:092
187399129,2cyclictest0-21swapper/222:20:362
187399129,2cyclictest0-21swapper/221:25:452
187399129,2cyclictest0-21swapper/219:35:142
187399122,7cyclictest0-21swapper/200:19:022
187399120,2cyclictest0-21swapper/223:45:192
187399120,2cyclictest0-21swapper/223:35:072
187399120,2cyclictest0-21swapper/222:26:262
187399120,2cyclictest0-21swapper/219:45:002
187399120,2cyclictest0-21swapper/200:25:122
187399120,2cyclictest0-21swapper/200:11:442
187399120,11cyclictest0-21swapper/223:07:022
187399120,11cyclictest0-21swapper/222:05:542
187399120,11cyclictest0-21swapper/221:35:362
187399120,11cyclictest0-21swapper/200:05:062
187299124,6cyclictest0-21swapper/119:21:051
187299121,9cyclictest22166-21apt-get20:00:111
187299121,3cyclictest0-21swapper/123:10:181
187199129,2cyclictest0-21swapper/023:56:250
187199129,2cyclictest0-21swapper/022:33:540
187199129,2cyclictest0-21swapper/021:35:340
187199129,2cyclictest0-21swapper/020:06:020
187199129,2cyclictest0-21swapper/019:50:160
187199129,2cyclictest0-21swapper/019:50:150
187199122,7cyclictest0-21swapper/020:29:580
187199122,7cyclictest0-21swapper/019:17:590
187199121,9cyclictest0-21swapper/020:20:000
187199120,2cyclictest22335-21ssh00:02:280
187199120,2cyclictest0-21swapper/000:25:310
187199120,1cyclictest0-21swapper/021:05:160
187199120,11cyclictest0-21swapper/023:31:050
187199120,10cyclictest0-21swapper/020:45:150
169602120,2sleep00-21swapper/021:41:020
187499118,2cyclictest0-21swapper/321:05:503
187499118,2cyclictest0-21swapper/319:35:183
187499111,6cyclictest0-21swapper/319:26:053
187399112,6cyclictest0-21swapper/220:25:012
187399112,5cyclictest0-21swapper/219:51:012
187399112,5cyclictest0-21swapper/219:51:002
187399110,2cyclictest0-21swapper/220:55:112
187399110,10cyclictest0-21swapper/220:35:012
187399110,10cyclictest0-21swapper/219:56:092
187199118,2cyclictest6124-21copy19:20:030
187199118,2cyclictest0-21swapper/020:00:120
187199118,2cyclictest0-21swapper/019:34:140
187199112,6cyclictest0-21swapper/019:11:010
187199111,6cyclictest0-21swapper/019:40:020
187199110,10cyclictest0-21swapper/020:24:570
187499107,2cyclictest0-21swapper/320:17:003
187499100,9cyclictest0-21swapper/319:57:123
187399107,2cyclictest0-21swapper/220:40:072
187399107,2cyclictest0-21swapper/220:00:172
187399102,5cyclictest0-21swapper/220:05:022
187299100,3cyclictest6057-21aten2.4_r3power20:40:111
187199105,3cyclictest22150irq/25-ahci[00019:40:010
187199102,6cyclictest0-21swapper/019:25:020
187199100,3cyclictest27983-21ls20:15:010
187199100,1cyclictest0-21swapper/021:01:060
18749996,2cyclictest0-21swapper/320:35:223
18749996,2cyclictest0-21swapper/320:03:573
18749995,2cyclictest24789-21if_err_eth020:05:173
18749994,3cyclictest598-21missed_timers20:25:173
18749994,3cyclictest31245-21pzem_power20:20:403
18749994,3cyclictest16308-21cpu19:45:143
18749990,8cyclictest0-21swapper/320:30:153
18719996,2cyclictest0-21swapper/020:55:130
18719991,6cyclictest0-21swapper/020:35:140
18749983,3cyclictest26218-21aten2.4_r3power20:10:123
18749983,3cyclictest10159-21cut19:30:113
18749981,3cyclictest0-21swapper/319:15:123
18739983,3cyclictest15496-21sed21:01:032
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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