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2026-08-08 - 21:00

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #b, slot #5

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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  Phytec
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, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 792 highest latencies:
System rackbslot5s.osadl.org (updated Sat Aug 08, 2026 12:44:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
465128996150,7cyclictest512767-21sh09:25:011
465136995548,5cyclictest530246-21kworker/u8:0+events_unbound10:45:533
465133994737,7cyclictest511066-21sendmail09:20:012
465128994736,7cyclictest516392-21kworker/u8:0+events_unbound09:35:121
465136994636,6cyclictest482925-21awk08:00:013
465133994538,5cyclictest512763-21cron09:25:012
465124994538,4cyclictest511055-21cron09:20:000
465136994336,5cyclictest551205-21kworker/u8:3+events_unbound11:46:013
465128994332,7cyclictest575645-21apt12:24:591
465128994233,5cyclictest542609-21munin-run10:50:011
465128994129,8cyclictest508925-21grep09:10:261
465136994027,8cyclictest472264-21grep07:25:273
465128994033,4cyclictest561802-21munin-plugin-st11:45:001
465124994031,6cyclictest204-21dbus-daemon07:15:040
465136993921,6cyclictest131rcu_preempt08:20:133
465133993933,4cyclictest517877-21cron09:40:012
465128993928,8cyclictest572214-21cron12:15:001
465136993831,5cyclictest505137-21kworker/u8:1+events_unbound09:15:413
465136993830,5cyclictest538767-21munin-run10:39:593
465136993830,5cyclictest538767-21munin-run10:39:593
465133993828,6cyclictest0-21swapper/211:10:012
465136993630,4cyclictest530246-21kworker/u8:0+events_unbound10:15:463
465136993628,4cyclictest0-21swapper/311:35:163
465133993629,5cyclictest479289-21kworker/u8:2+events_unbound07:55:222
465133993628,4cyclictest0-21swapper/210:50:002
465133993627,6cyclictest493581-21munin-run08:30:012
465128993628,4cyclictest0-21swapper/107:40:081
465128993628,4cyclictest0-21swapper/107:40:071
465128993627,5cyclictest0-21swapper/110:20:011
465128993626,7cyclictest0-21swapper/108:20:011
465124993628,4cyclictest522992-21audit_send_reply09:55:010
465124993628,4cyclictest0-21swapper/010:20:010
465124993626,6cyclictest0-21swapper/012:30:000
465136993527,5cyclictest495479-21cron08:35:013
465136993527,5cyclictest495479-21cron08:35:013
465136993516,6cyclictest131rcu_preempt09:50:113
465133993524,7cyclictest503809-21grep08:55:262
465124993528,4cyclictest500824-21munin-plugin-st08:50:000
465124993524,7cyclictest0-21swapper/010:40:000
465124993524,7cyclictest0-21swapper/010:40:000
46513699344,17cyclictest40-21ksoftirqd/310:05:133
46513699344,17cyclictest40-21ksoftirqd/310:05:123
465136993418,6cyclictest520981-21kworker/u8:0+events_unbound09:56:383
465133993427,4cyclictest0-21swapper/211:15:542
465133993426,4cyclictest466739-21cron07:15:012
465128993424,7cyclictest482492-21grep07:55:261
465124993425,5cyclictest208-21systemd-logind07:25:070
465124993422,8cyclictest204-21dbus-daemon07:55:220
465136993325,6cyclictest479289-21kworker/u8:2+events_unbound07:54:423
465136993324,5cyclictest0-21swapper/312:05:263
465136993323,7cyclictest489833-21kworker/u8:2-ext4-rsv-conversion08:30:013
465136993323,6cyclictest0-21swapper/312:25:273
465136993322,8cyclictest438-21cron08:54:593
465136993322,7cyclictest0-21swapper/308:40:253
465136993322,7cyclictest0-21swapper/308:40:253
465133993327,3cyclictest0-21swapper/212:15:272
465133993326,4cyclictest522983-21cron09:55:002
465133993326,4cyclictest0-21swapper/212:00:282
465133993325,4cyclictest0-21swapper/211:40:592
465128993325,4cyclictest0-21swapper/111:30:181
465128993325,4cyclictest0-21swapper/111:30:171
465128993325,4cyclictest0-21swapper/109:55:161
465128993322,7cyclictest500808-21cron08:49:591
465128993321,8cyclictest507270-21sshd09:05:381
465124993326,3cyclictest0-21swapper/007:45:150
465124993323,7cyclictest493774-21apt-key08:30:020
465124993323,6cyclictest0-21swapper/009:45:250
465136993226,4cyclictest544255-21kworker/u8:0+events_unbound11:00:543
465136993223,5cyclictest568345-21grep12:00:283
465136993220,7cyclictest0-21swapper/308:40:003
465136993220,7cyclictest0-21swapper/308:40:003
465133993224,4cyclictest0-21swapper/207:45:142
465133993222,6cyclictest545760-21grep10:55:292
46512899325,4cyclictest131rcu_preempt10:50:111
465128993226,4cyclictest547863-21kworker/u8:2+events_unbound11:05:551
465128993225,3cyclictest0-21swapper/110:40:201
46512499327,14cyclictest131rcu_preempt10:30:130
465124993226,3cyclictest0-21swapper/007:40:010
465124993212,9cyclictest131rcu_preempt09:40:130
465136993125,4cyclictest551205-21kworker/u8:3+events_unbound11:50:193
465136993121,5cyclictest0-21swapper/310:45:003
465136993115,6cyclictest512619-21kworker/u8:1+events_unbound09:32:063
46513399317,4cyclictest543050-21cpu10:50:132
465133993125,3cyclictest0-21swapper/211:50:262
465133993121,7cyclictest521287-21sh09:50:012
465128993126,3cyclictest544255-21kworker/u8:0+events_unbound10:55:511
465124993125,3cyclictest0-21swapper/012:20:000
465124993123,4cyclictest0-21swapper/008:40:010
465124993123,4cyclictest0-21swapper/008:40:000
465124993122,4cyclictest0-21swapper/012:35:170
465136993024,4cyclictest484757-21kworker/u8:2+events_unbound08:05:223
465136993024,4cyclictest472578-21kworker/u8:0+events_unbound07:40:433
465136993024,4cyclictest472578-21kworker/u8:0+events_unbound07:40:423
465136993023,4cyclictest0-21swapper/311:10:003
465136993021,7cyclictest562004-21sort11:45:003
465136993014,10cyclictest391ktimers/309:40:143
465136993012,11cyclictest40-21ksoftirqd/307:15:263
465128993023,4cyclictest538763-21kthreadd10:40:001
465128993023,4cyclictest538763-21kthreadd10:40:001
465128993022,4cyclictest0-21swapper/111:35:271
465128993022,4cyclictest0-21swapper/108:15:011
465128993020,6cyclictest0-21swapper/111:45:261
465128993018,8cyclictest473929-21grep07:30:271
465124993024,3cyclictest0-21swapper/011:10:160
465136992922,5cyclictest551205-21kworker/u8:3+events_unbound11:33:323
465136992922,5cyclictest551205-21kworker/u8:3+events_unbound11:33:313
465136992914,6cyclictest530246-21kworker/u8:0+events_unbound10:25:523
465136992914,10cyclictest391ktimers/310:30:133
465133992923,3cyclictest0-21swapper/212:05:282
465133992923,3cyclictest0-21swapper/209:05:172
465133992923,3cyclictest0-21swapper/208:15:172
465133992921,4cyclictest0-21swapper/212:36:032
465128992921,4cyclictest0-21swapper/112:40:011
465128992921,4cyclictest0-21swapper/111:25:251
465128992921,4cyclictest0-21swapper/111:15:181
465128992920,5cyclictest521661-21cut09:50:171
465124992922,4cyclictest13550irq/42-30be0000.ethernet08:20:010
465124992922,3cyclictest0-21swapper/009:30:270
465124992921,4cyclictest0-21swapper/012:31:020
465124992921,4cyclictest0-21swapper/009:00:270
465136992821,5cyclictest509099-21kworker/u8:2+events_unbound09:23:303
465136992821,4cyclictest0-21swapper/311:25:263
465136992812,6cyclictest40-21ksoftirqd/307:20:173
465128992821,4cyclictest0-21swapper/109:45:261
465124992821,4cyclictest0-21swapper/009:55:260
465124992821,4cyclictest0-21swapper/008:10:260
465124992820,4cyclictest0-21swapper/009:20:250
465124992817,7cyclictest0-21swapper/008:55:260
465124992815,5cyclictest520981-21kworker/u8:0+events_unbound10:07:210
465124992815,5cyclictest520981-21kworker/u8:0+events_unbound10:07:200
46513699278,5cyclictest131rcu_preempt08:15:143
46513699277,13cyclictest131rcu_preempt12:20:183
46513699275,3cyclictest487517-21cut08:10:243
46513699272,17cyclictest504231-21cut09:00:003
465136992720,4cyclictest508943-21head09:10:273
465136992719,4cyclictest0-21swapper/309:10:013
465136992714,5cyclictest512619-21kworker/u8:1+events_unbound09:38:373
465136992710,6cyclictest131rcu_preempt12:30:053
465133992720,4cyclictest505137-21kworker/u8:1+events_unbound09:10:422
465133992720,4cyclictest0-21swapper/210:35:192
465133992720,4cyclictest0-21swapper/210:35:192
465133992719,4cyclictest0-21swapper/212:20:282
465133992718,6cyclictest502107-21grep08:50:262
465133992717,7cyclictest311ktimers/208:30:062
465133992717,7cyclictest311ktimers/208:30:062
465128992716,9cyclictest231ktimers/112:05:131
465124992721,3cyclictest0-21swapper/012:09:590
465124992718,5cyclictest0-21swapper/008:00:270
465124992717,6cyclictest542184-21grep10:45:280
465124992716,6cyclictest204-21dbus-daemon10:00:450
465124992714,9cyclictest0-21swapper/012:20:190
46513699267,11cyclictest131rcu_preempt07:35:243
46513699265,11cyclictest40-21ksoftirqd/307:35:013
46513699262,14cyclictest0-21swapper/312:10:233
465136992619,5cyclictest512619-21kworker/u8:1+events_unbound09:29:473
465136992619,4cyclictest550074-21/usr/sbin/munin11:10:183
46513699261,8cyclictest0-21swapper/310:00:113
465136992617,5cyclictest499510-21fschecks_count08:45:173
465136992616,8cyclictest505929-21cron09:05:013
465136992615,7cyclictest580533-21grep12:35:263
465133992620,3cyclictest0-21swapper/210:10:172
465133992619,5cyclictest145-21jbd2/mmcblk1p2-811:45:042
465133992619,4cyclictest0-21swapper/208:45:272
465133992618,6cyclictest497344-21latency_hist08:40:012
465133992618,6cyclictest497344-21latency_hist08:40:002
465133992615,7cyclictest533176-21grep10:20:252
46512899262,3cyclictest131rcu_preempt11:50:121
465128992619,5cyclictest575498-21kworker/u8:1+events_unbound12:26:041
465128992618,5cyclictest472283-21grep07:25:271
465128992617,6cyclictest0-21swapper/112:00:271
465128992617,5cyclictest0-21swapper/108:40:011
465128992617,5cyclictest0-21swapper/108:40:011
465128992615,3cyclictest0-21swapper/108:30:001
465124992622,2cyclictest13550irq/42-30be0000.ethernet09:05:130
465124992618,5cyclictest0-21swapper/011:35:120
465124992617,6cyclictest534109-21fschecks_time10:25:180
465124992617,5cyclictest0-21swapper/007:44:370
465124992617,5cyclictest0-21swapper/007:44:370
46513699252,12cyclictest40-21ksoftirqd/309:50:003
465136992518,4cyclictest438-21cron10:25:013
465136992517,4cyclictest0-21swapper/312:20:003
465136992517,4cyclictest0-21swapper/308:00:243
465136992517,4cyclictest0-21swapper/307:45:253
465136992515,7cyclictest380-21ntpd10:55:243
46513699251,14cyclictest0-21swapper/310:50:213
46513699251,12cyclictest0-21swapper/310:11:043
465136992510,9cyclictest204-21dbus-daemon07:10:033
46513399256,16cyclictest485209-21fschecks_count08:05:172
465133992519,4cyclictest568679-21kworker/u8:0+events_unbound12:31:052
465133992519,3cyclictest0-21swapper/210:10:012
465133992519,3cyclictest0-21swapper/210:10:012
465133992519,3cyclictest0-21swapper/208:40:242
465133992519,3cyclictest0-21swapper/208:40:242
465133992519,3cyclictest0-21swapper/207:35:172
465133992516,5cyclictest0-21swapper/208:05:012
465133992515,6cyclictest0-21swapper/211:35:002
465133992515,6cyclictest0-21swapper/211:35:002
465133992515,6cyclictest0-21swapper/208:15:012
465133992512,9cyclictest469053-21apt-get07:20:012
465128992519,3cyclictest0-21swapper/112:20:001
465128992519,3cyclictest0-21swapper/107:15:021
465128992517,4cyclictest0-21swapper/107:25:011
465124992517,5cyclictest0-21swapper/010:15:000
465124992516,6cyclictest517953-21latency_hist09:40:010
465124992515,8cyclictest543815-21awk10:50:250
465124992515,7cyclictest555729-21ntpq11:25:210
465124992515,7cyclictest508593-21mailstats09:10:240
465136992417,5cyclictest566767-21kworker/u8:2+events_unbound11:58:593
465136992416,6cyclictest551205-21kworker/u8:3+events_unbound11:23:013
465136992416,4cyclictest0-21swapper/311:15:163
465133992418,3cyclictest0-21swapper/211:35:272
465133992418,3cyclictest0-21swapper/210:20:002
465133992417,3cyclictest0-21swapper/212:25:272
465133992416,4cyclictest0-21swapper/211:10:262
465133992414,6cyclictest0-21swapper/210:00:242
465133992413,7cyclictest0-21swapper/207:20:262
465128992418,3cyclictest0-21swapper/107:40:001
465128992416,4cyclictest0-21swapper/107:45:261
465128992415,7cyclictest483529-21fschecks_count08:00:161
465128992414,7cyclictest527471-21sed10:05:251
465128992414,7cyclictest527471-21sed10:05:251
465128992414,6cyclictest1-21systemd12:31:031
465124992419,3cyclictest13550irq/42-30be0000.ethernet08:30:170
465124992419,3cyclictest13550irq/42-30be0000.ethernet08:30:170
465124992418,4cyclictest553165-21kworker/u8:0+events_unbound11:20:570
465124992418,3cyclictest0-21swapper/011:20:010
465124992418,2cyclictest0-21swapper/011:55:490
465124992417,4cyclictest0-21swapper/007:30:280
465124992416,5cyclictest0-21swapper/010:55:290
465124992416,5cyclictest0-21swapper/010:45:010
465124992415,5cyclictest0-21swapper/009:25:210
465124992413,8cyclictest564892-21cat11:50:270
46512499241,19cyclictest0-21swapper/012:14:490
46512499241,19cyclictest0-21swapper/011:40:280
46512499241,19cyclictest0-21swapper/011:06:060
46512499241,19cyclictest0-21swapper/010:24:590
46512499241,19cyclictest0-21swapper/008:43:260
46512499241,19cyclictest0-21swapper/008:43:260
46512499241,19cyclictest0-21swapper/008:08:500
46512499241,19cyclictest0-21swapper/007:23:430
465133992317,4cyclictest568679-21kworker/u8:0+events_unbound12:11:032
465133992314,4cyclictest0-21swapper/210:45:012
46512899236,5cyclictest131rcu_preempt09:00:141
465128992316,4cyclictest504247-21idleruntime-cro09:00:011
465128992315,4cyclictest0-21swapper/108:20:261
465128992314,5cyclictest469070-21sendmail07:20:011
465128992313,6cyclictest525973-21grep10:00:241
465128992313,6cyclictest0-21swapper/110:29:591
465124992318,3cyclictest13550irq/42-30be0000.ethernet07:10:180
465124992316,4cyclictest490942-21ntpq08:20:210
465124992314,4cyclictest0-21swapper/007:50:170
46512499231,18cyclictest0-21swapper/012:01:340
46512499231,18cyclictest0-21swapper/011:01:110
46512499230,19cyclictest0-21swapper/011:33:010
46512499230,19cyclictest0-21swapper/011:33:010
465133992216,4cyclictest553668-21fschecks_count11:20:162
465133992216,4cyclictest519153-21unixbench_singl09:40:272
465133992216,3cyclictest0-21swapper/210:30:262
465133992211,8cyclictest513000-21apt-get09:25:092
465128992216,3cyclictest0-21swapper/111:20:271
465128992216,3cyclictest0-21swapper/108:10:011
465128992215,5cyclictest231ktimers/107:50:111
465128992215,4cyclictest550287-21fschecks_time11:10:171
465128992214,4cyclictest0-21swapper/110:30:161
465128992214,4cyclictest0-21swapper/110:20:171
465128992212,6cyclictest0-21swapper/109:40:261
465124992211,8cyclictest204-21dbus-daemon08:50:340
46512499220,18cyclictest0-21swapper/011:46:450
46513399216,3cyclictest0-21swapper/208:20:512
465133992115,4cyclictest461515-21kworker/u8:1+events_unbound07:25:072
465133992115,3cyclictest0-21swapper/210:30:002
465133992113,5cyclictest555389-21uniq11:25:162
465133992111,7cyclictest523370-21cut09:55:152
465133992110,8cyclictest480195-21memory07:50:182
465128992114,4cyclictest0-21swapper/109:25:241
465128992114,3cyclictest0-21swapper/111:55:171
465133992014,3cyclictest0-21swapper/209:30:212
465128992013,5cyclictest528711-21fschecks_count10:10:161
465128992013,4cyclictest231ktimers/108:50:141
465133991914,3cyclictest504783-21if_eth109:00:182
465133991913,4cyclictest477551-21sh07:42:012
465133991913,4cyclictest477551-21sh07:42:012
465133991912,5cyclictest311ktimers/207:30:142
465128991912,5cyclictest231ktimers/108:30:051
465128991912,5cyclictest231ktimers/108:30:051
465128991910,6cyclictest510383-21cat09:15:251
465133991810,5cyclictest0-21swapper/211:00:262
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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