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2026-08-13 - 06:39

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 Thu Aug 13, 2026 00:43:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
187772115103,6sleep10-21swapper/119:05:161
19024211089,15sleep30-21swapper/319:05:523
19672210887,16sleep00-21swapper/019:09:080
19704210786,16sleep20-21swapper/219:09:342
285262930,3sleep01976899cyclictest22:41:020
177282850,0sleep30-21swapper/323:03:373
177282850,0sleep30-21swapper/323:03:373
147872670,1sleep314789-21ls20:15:183
62762610,4sleep01976899cyclictest21:12:030
11772250,0sleep10-21swapper/122:13:331
1976899240,18cyclictest0-21swapper/023:51:040
115762240,0sleep00-21swapper/022:56:410
1976899230,17cyclictest0-21swapper/020:20:040
1976899230,17cyclictest0-21swapper/019:51:040
1976999221,9cyclictest0-21swapper/122:20:121
1976899220,17cyclictest0-21swapper/022:25:040
1976899220,16cyclictest0-21swapper/023:21:040
1977199214,2cyclictest11372-21ssh00:03:043
19771992118,2cyclictest5422-21kworker/u8:022:51:043
1976899210,16cyclictest0-21swapper/019:30:040
19771992017,2cyclictest9697-21kworker/u8:121:17:053
19771992017,2cyclictest26392-21kworker/u8:122:09:053
1977099200,18cyclictest17514-21kworker/2:200:10:122
19768992017,2cyclictest10318-21kworker/u8:200:02:020
1976899200,15cyclictest0-21swapper/000:10:040
1977199192,2cyclictest0-21swapper/323:27:043
1977199192,2cyclictest0-21swapper/323:15:043
1976999193,14cyclictest24825-21cron22:05:001
1976999192,15cyclictest0-21swapper/100:01:521
19769991913,4cyclictest28706-21sh21:35:151
1976999191,16cyclictest0-21swapper/119:35:101
1976899192,2cyclictest0-21swapper/000:27:050
1976899191,2cyclictest0-21swapper/021:48:040
1976899190,2cyclictest0-21swapper/023:27:050
1976899190,17cyclictest8537-21ssh21:15:110
1977199182,2cyclictest23885-21copy19:20:043
1977199182,2cyclictest0-21swapper/323:50:043
1977199182,2cyclictest0-21swapper/323:44:013
1977199182,2cyclictest0-21swapper/323:07:043
1977199182,2cyclictest0-21swapper/323:07:043
1977199182,2cyclictest0-21swapper/322:55:043
19771991815,2cyclictest7533-21kworker/u8:022:30:063
19771991815,2cyclictest3452-21kworker/u8:221:25:043
1977199181,2cyclictest0-21swapper/300:30:043
1977199181,2cyclictest0-21swapper/300:07:043
1977199180,3cyclictest0-21swapper/321:48:043
1976999181,3cyclictest0-21swapper/119:46:031
1976999181,3cyclictest0-21swapper/119:46:021
19769991812,4cyclictest0-21swapper/121:41:261
19768991815,2cyclictest21620-21kworker/u8:023:47:040
19768991815,2cyclictest20031-21kworker/u8:123:01:040
19768991815,2cyclictest20031-21kworker/u8:123:01:040
19768991815,2cyclictest13271-21kworker/u8:222:32:050
1976899180,6cyclictest0-21swapper/022:37:580
1976899180,2cyclictest0-21swapper/023:15:040
1976899180,2cyclictest0-21swapper/022:54:040
1976899180,2cyclictest0-21swapper/019:29:040
1976899180,2cyclictest0-21swapper/000:30:040
1976899180,16cyclictest0-21swapper/023:59:040
1977199172,3cyclictest0-21swapper/300:26:043
1977199172,2cyclictest0-21swapper/319:34:023
19771991714,2cyclictest1461-21kworker/u8:222:18:043
19771991714,2cyclictest13785-21kworker/u8:121:57:043
19771991714,2cyclictest10318-21kworker/u8:200:18:043
1977199171,2cyclictest31414-21ssh21:38:043
19770991712,3cyclictest29-21rcuc/223:45:122
19770991712,3cyclictest0-21swapper/200:21:052
1976999172,8cyclictest0-21swapper/123:40:011
19769991712,3cyclictest9147-21hddtemp_smartct21:15:151
19769991712,3cyclictest20437-21ssh22:33:111
19769991712,3cyclictest0-21swapper/120:40:131
1976999170,15cyclictest0-21swapper/121:14:111
19768991714,2cyclictest19646-21kworker/u8:220:36:040
19768991713,2cyclictest14146-21kworker/u8:223:14:010
1976899170,2cyclictest0-21swapper/023:44:010
1976899170,2cyclictest0-21swapper/019:20:040
1976899170,2cyclictest0-21swapper/019:15:040
1976899170,2cyclictest0-21swapper/000:07:040
1977199162,2cyclictest0-21swapper/300:38:013
19771991613,2cyclictest23198-21kworker/u8:021:33:043
19771991613,2cyclictest21620-21kworker/u8:023:39:043
19771991613,2cyclictest14146-21kworker/u8:223:11:043
1977199161,2cyclictest0-21swapper/323:55:043
1977199161,2cyclictest0-21swapper/320:24:043
1976999163,2cyclictest0-21swapper/122:25:161
1976999163,2cyclictest0-21swapper/121:27:431
1976999162,12cyclictest21-21rcuc/121:56:081
1976999162,12cyclictest0-21swapper/121:50:111
1976999161,4cyclictest207150irq/24-eth122:16:161
19769991613,2cyclictest0-21swapper/123:10:161
19769991613,2cyclictest0-21swapper/120:15:121
19769991612,3cyclictest0-21swapper/123:52:231
1976999161,13cyclictest207150irq/24-eth121:23:081
19768991613,2cyclictest1461-21kworker/u8:222:19:040
1976899160,2cyclictest0-21swapper/021:40:040
1976899160,2cyclictest0-21swapper/021:38:040
1976899160,2cyclictest0-21swapper/019:56:050
1976899160,15cyclictest0-21swapper/020:52:040
19771991512,2cyclictest9697-21kworker/u8:121:20:043
19771991512,2cyclictest9458-21kworker/u8:223:32:043
19771991512,2cyclictest31881-21kworker/u8:222:48:043
19771991512,2cyclictest26392-21kworker/u8:122:10:013
19771991512,2cyclictest21620-21kworker/u8:023:49:053
19771991512,2cyclictest20174-21kworker/u8:222:02:043
19771991512,2cyclictest20031-21kworker/u8:122:42:043
19771991512,2cyclictest16982-21kworker/u8:019:10:043
1977099151,3cyclictest14371-21ssh23:33:052
19770991510,3cyclictest18148-21date21:25:002
1977099150,13cyclictest29-21rcuc/223:55:152
1977099150,13cyclictest29-21rcuc/220:20:162
1977099150,13cyclictest24706-21modprobe20:40:152
1977099150,13cyclictest0-21swapper/222:55:152
1977099150,13cyclictest0-21swapper/222:10:122
1976999153,11cyclictest0-21swapper/100:05:141
1976999153,10cyclictest32500-21munin-node1
1976999153,10cyclictest0-21swapper/123:20:111
1976999153,10cyclictest0-21swapper/119:26:031
1976999152,2cyclictest0-21swapper/121:34:121
1976999152,12cyclictest0-21swapper/122:40:281
1976999151,6cyclictest27450jbd2/sda1-823:04:111
1976999151,6cyclictest27450jbd2/sda1-823:04:111
19769991512,2cyclictest0-21swapper/123:05:521
19769991512,2cyclictest0-21swapper/123:05:521
19769991512,2cyclictest0-21swapper/122:52:441
19769991512,2cyclictest0-21swapper/122:36:041
19769991512,2cyclictest0-21swapper/100:39:071
1976999151,12cyclictest0-21swapper/122:55:491
19769991510,3cyclictest10002-21aten2.4_r3power20:05:121
19769991510,3cyclictest0-21swapper/100:11:011
1976999150,13cyclictest4797-21processes19:50:181
1976999150,13cyclictest0-21swapper/100:33:111
19768991512,2cyclictest20031-21kworker/u8:122:45:050
19768991512,2cyclictest10318-21kworker/u8:200:20:010
1976899150,8cyclictest0-21swapper/021:04:040
1976899150,2cyclictest0-21swapper/023:07:050
1976899150,2cyclictest0-21swapper/023:07:040
1976899150,14cyclictest0-21swapper/020:07:050
1976899150,13cyclictest0-21swapper/020:40:100
223112140,2sleep03178-21diskmemload21:29:080
1977199141,2cyclictest0-21swapper/320:13:043
19771991411,2cyclictest7533-21kworker/u8:022:22:043
19771991411,2cyclictest3452-21kworker/u8:221:43:053
19771991411,2cyclictest13785-21kworker/u8:121:54:043
1977199140,12cyclictest19382-21rt-features00:11:013
1977199140,12cyclictest0-21swapper/321:00:173
1977099143,8cyclictest32368-21ssh00:25:002
19770991410,2cyclictest30089-21apt-get20:55:122
1977099140,13cyclictest0-21swapper/219:20:162
1977099140,12cyclictest0-21swapper/222:46:462
1976999143,9cyclictest18008-21munin-node1
1976999142,6cyclictest0-21swapper/123:45:011
1976999142,6cyclictest0-21swapper/120:15:001
1976999142,2cyclictest0-21swapper/120:00:101
1976999142,11cyclictest0-21swapper/120:53:121
1976999142,10cyclictest0-21swapper/123:30:161
1976999142,10cyclictest0-21swapper/120:45:161
1976999141,2cyclictest0-21swapper/119:20:031
19769991411,2cyclictest0-21swapper/119:55:021
19769991411,2cyclictest0-21swapper/119:15:291
19769991411,2cyclictest0-21swapper/100:24:471
1976999141,11cyclictest21335-21fschecks_count23:40:131
19769991410,3cyclictest0-21swapper/123:27:371
1976999140,2cyclictest207150irq/24-eth121:49:521
19768991411,2cyclictest3452-21kworker/u8:221:23:050
19768991411,2cyclictest30229-21kworker/u8:000:37:040
19768991411,2cyclictest21054-21kworker/u8:119:11:050
19768991411,2cyclictest13785-21kworker/u8:121:58:050
19768991411,2cyclictest10318-21kworker/u8:200:17:040
1976899140,2cyclictest0-21swapper/021:09:040
19771991311,1cyclictest12179-21apt-get22:25:113
19771991310,2cyclictest3653-21kworker/u8:123:22:053
19771991310,2cyclictest31584-21kworker/u8:319:50:053
19771991310,2cyclictest31584-21kworker/u8:319:49:043
19771991310,2cyclictest31584-21kworker/u8:319:49:043
19771991310,2cyclictest31584-21kworker/u8:319:42:043
19771991310,2cyclictest29076-21kworker/u8:019:36:053
19771991310,2cyclictest14992-21kworker/u8:020:46:043
19771991310,2cyclictest0-21swapper/320:25:173
1977199130,2cyclictest0-21swapper/320:00:113
1977199130,12cyclictest0-21swapper/320:40:153
1977199130,11cyclictest3178-21diskmemload00:21:003
1977199130,11cyclictest0-21swapper/321:11:393
1977099133,6cyclictest0-21swapper/200:31:022
1977099132,7cyclictest0-21swapper/220:40:002
1977099132,6cyclictest0-21swapper/222:41:002
1977099131,2cyclictest0-21swapper/223:54:082
19770991310,2cyclictest12797-21ssh21:19:352
19770991310,2cyclictest0-21swapper/223:16:162
19770991310,2cyclictest0-21swapper/221:44:142
19770991310,2cyclictest0-21swapper/221:32:262
1977099130,3cyclictest3728-21runrttasks21:14:252
1977099130,12cyclictest0-21swapper/200:15:152
1977099130,11cyclictest0-21swapper/222:31:182
1976999139,2cyclictest0-21swapper/119:10:111
1976999133,8cyclictest25145-21munin-node1
1976999133,8cyclictest24405-21sort00:16:031
1976999132,9cyclictest0-21swapper/123:15:161
1976999132,9cyclictest0-21swapper/119:30:161
1976999131,3cyclictest0-21swapper/119:40:121
1976999131,10cyclictest16433-21fschecks_count20:20:141
1976999130,2cyclictest0-21swapper/123:55:111
1976999130,2cyclictest0-21swapper/120:55:121
1976899139,2cyclictest30477-21df_inode20:55:150
19768991310,2cyclictest3452-21kworker/u8:221:50:010
19768991310,2cyclictest0-21swapper/023:30:500
19768991310,2cyclictest0-21swapper/022:10:120
19768991310,2cyclictest0-21swapper/021:30:400
1976899130,2cyclictest0-21swapper/020:13:040
1976899130,2cyclictest0-21swapper/020:02:040
1976899130,10cyclictest0-21swapper/020:28:040
1977199129,2cyclictest23704-21kworker/u8:219:25:043
1977199129,2cyclictest14992-21kworker/u8:020:50:053
1977199129,2cyclictest14992-21kworker/u8:020:35:043
1977199129,2cyclictest14992-21kworker/u8:020:34:043
1977199120,2cyclictest0-21swapper/320:55:193
1977199120,11cyclictest0-21swapper/322:35:193
1977199120,11cyclictest0-21swapper/319:15:173
1977099129,2cyclictest6620-21ssh22:51:322
1977099129,2cyclictest3178-21diskmemload22:00:012
1977099129,2cyclictest0-21swapper/223:03:312
1977099129,2cyclictest0-21swapper/223:03:312
1977099129,2cyclictest0-21swapper/222:20:132
1977099129,2cyclictest0-21swapper/221:53:022
1977099129,2cyclictest0-21swapper/220:25:122
1977099129,2cyclictest0-21swapper/219:25:182
1977099129,2cyclictest0-21swapper/200:08:402
1977099128,2cyclictest0-21swapper/221:06:012
1977099127,3cyclictest3178-21diskmemload23:40:142
1977099127,3cyclictest22379-21ssh22:35:122
1977099122,7cyclictest19835-21ssh23:38:582
1977099121,6cyclictest0-21swapper/200:05:012
19770991210,1cyclictest0-21swapper/222:15:152
1977099120,2cyclictest29-21rcuc/221:25:182
1977099120,2cyclictest17288-21ssh21:56:042
1977099120,11cyclictest25150-21ssh23:10:372
1977099120,11cyclictest0-21swapper/221:37:112
1977099120,10cyclictest0-21swapper/200:37:002
1976999129,2cyclictest0-21swapper/122:46:481
1976999123,6cyclictest0-21swapper/120:37:581
1976999122,8cyclictest1613-21grep21:05:121
1976999121,9cyclictest0-21swapper/121:00:151
1976999120,2cyclictest0-21swapper/120:30:161
1976899129,2cyclictest31584-21kworker/u8:319:41:040
1976899129,2cyclictest29076-21kworker/u8:019:36:020
1976899129,2cyclictest0-21swapper/022:01:400
1976899120,2cyclictest0-21swapper/022:22:230
1976899120,2cyclictest0-21swapper/022:06:120
1976899120,11cyclictest0-21swapper/023:36:220
1977099118,2cyclictest31-21ksoftirqd/219:45:182
1977099118,2cyclictest31-21ksoftirqd/219:45:172
1977099118,2cyclictest0-21swapper/222:06:162
1977099116,3cyclictest15769-21latency_hist20:20:012
1977099112,6cyclictest0-21swapper/220:47:012
1977099110,9cyclictest8269-21ssh23:26:112
1977099110,2cyclictest1101-21ssh23:20:042
1977099110,10cyclictest0-21swapper/223:05:182
1977099110,10cyclictest0-21swapper/223:05:182
1977099110,10cyclictest0-21swapper/222:25:072
1977099110,10cyclictest0-21swapper/221:45:352
1976899118,2cyclictest31584-21kworker/u8:319:48:050
1976899118,2cyclictest31584-21kworker/u8:319:48:040
1977199107,2cyclictest14992-21kworker/u8:021:05:043
1977199107,2cyclictest0-21swapper/320:05:183
1977099107,2cyclictest0-21swapper/219:11:022
1977099106,2cyclictest28676-21hwlatdetect20:50:142
1977099105,3cyclictest0-21swapper/219:35:132
1977099101,6cyclictest0-21swapper/220:32:582
1977099100,9cyclictest0-21swapper/220:05:082
1976899107,2cyclictest31583-21kworker/u8:120:16:040
1976899107,2cyclictest14992-21kworker/u8:020:33:050
197719994,3cyclictest12-21rcu_preempt19:55:133
197709996,2cyclictest29-21rcuc/219:55:072
197709996,2cyclictest29-21rcuc/219:40:112
197709994,3cyclictest7666-21sh20:00:002
197709994,3cyclictest5418-21taskset19:52:242
197709994,3cyclictest32367-21tr21:00:112
197709991,3cyclictest0-21swapper/219:30:132
197709990,8cyclictest0-21swapper/220:13:442
197689991,5cyclictest3688-21Xorg20:45:580
197709983,3cyclictest22872-21ntpdc19:15:172
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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