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2026-07-09 - 15:06

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 376 highest latencies:
System rackbslot5s.osadl.org (updated Thu Jul 09, 2026 12:44:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
297479995331,19cyclictest361937-21unixbench_multi10:10:250
297479995022,24cyclictest0-21swapper/011:00:010
29747999501,14cyclictest355891-21runrttasks09:55:130
297482994935,10cyclictest231ktimers/109:40:111
297487994741,4cyclictest308262-21kworker/u8:0+events_unbound07:45:032
297479994722,20cyclictest0-21swapper/012:26:020
297479994716,27cyclictest0-21swapper/007:45:250
297487994639,4cyclictest317211-21munin-plugin-st08:05:002
297479994535,6cyclictest368796-21grep10:30:240
297479994410,5cyclictest164-21systemd-journal07:24:580
297491994333,7cyclictest351951-21cron09:45:003
29747999432,3cyclictest3501952cut09:40:010
29747999431,8cyclictest298958-21taskset07:13:220
297479994314,25cyclictest0-21swapper/008:20:250
297482994235,4cyclictest383061-21cron11:15:001
297482994233,5cyclictest313772-21cron07:55:001
297479994216,4cyclictest13850irq/36-mmc107:30:010
297479994115,3cyclictest307078-21cstates07:35:140
297479994113,3cyclictest0-21swapper/011:15:260
297491994034,4cyclictest3575192sleep310:00:123
297491994031,5cyclictest327421-21sh08:35:013
297487994033,5cyclictest304693-21kworker/u8:3+events_unbound07:40:032
297479994014,4cyclictest0-21swapper/008:05:010
297479994013,5cyclictest0-21swapper/012:20:000
297487993931,5cyclictest311ktimers/209:55:132
297487993929,6cyclictest0-21swapper/209:35:012
297482993928,8cyclictest407168-21sh12:25:001
29747999390,19cyclictest0-21swapper/010:20:200
297491993831,4cyclictest337462-21unixbench_singl09:00:263
297491993830,5cyclictest339109-21unixbench_multi09:05:263
297487993827,7cyclictest398624-21sh12:00:002
297487993827,7cyclictest335698-21grep08:55:242
297479993831,4cyclictest391602-21munin-plugin-st11:40:000
297479993810,5cyclictest0-21swapper/008:30:010
297491993727,6cyclictest0-21swapper/312:35:243
297491993726,6cyclictest0-21swapper/310:00:013
297487993729,5cyclictest365350-21unixbench_multi10:20:272
297487993728,6cyclictest0-21swapper/207:40:012
297487993726,7cyclictest350026-21apt-get09:40:002
297482993728,5cyclictest0-21swapper/107:15:021
297479993728,4cyclictest0-21swapper/010:15:490
297479993716,4cyclictest0-21swapper/009:20:270
297491993628,4cyclictest0-21swapper/308:10:003
297491993627,5cyclictest0-21swapper/310:35:263
297487993629,5cyclictest357040-21kworker/u8:2+events_unbound10:12:422
297487993628,5cyclictest377477-21unixbench_multi10:55:242
297487993628,4cyclictest0-21swapper/210:10:012
297487993626,6cyclictest311ktimers/208:35:112
297482993628,4cyclictest0-21swapper/110:55:161
297479993629,4cyclictest306900-21runrttasks07:35:020
29747999361,2cyclictest0-21swapper/012:20:230
297491993527,5cyclictest381360-21cron11:10:003
297491993527,4cyclictest0-21swapper/308:20:253
297487993527,4cyclictest0-21swapper/212:10:142
297482993521,9cyclictest350062-21basename09:40:001
297479993528,4cyclictest313772-21cron07:55:010
297479993516,4cyclictest357604-21cpuspeed10:00:140
297491993426,4cyclictest0-21swapper/310:30:243
297487993428,4cyclictest301064-21kworker/u8:0+events_unbound07:19:582
297482993423,7cyclictest0-21swapper/110:50:261
297482993421,9cyclictest231ktimers/108:40:121
297491993326,4cyclictest336317-21latency_hist09:00:013
297491993325,4cyclictest0-21swapper/308:15:263
297491993323,7cyclictest408876-21idleruntime-cro12:30:003
297491993323,6cyclictest0-21swapper/309:20:273
297487993326,4cyclictest0-21swapper/209:40:242
297487993322,8cyclictest318902-21idleruntime-cro08:10:002
297487993320,9cyclictest311ktimers/211:15:122
297482993326,4cyclictest0-21swapper/108:05:251
297482993324,6cyclictest353234-21grep09:45:271
297482993324,6cyclictest0-21swapper/107:40:021
297482993321,8cyclictest306346-21grep07:30:261
297482993319,10cyclictest231ktimers/112:10:121
29747999331,19cyclictest0-21swapper/007:58:550
29747999331,19cyclictest0-21swapper/007:58:550
297487993225,3cyclictest0-21swapper/210:50:162
297487993224,4cyclictest0-21swapper/211:10:172
29748799321,5cyclictest131rcu_preempt11:05:112
297482993224,4cyclictest0-21swapper/110:05:251
297482993223,6cyclictest0-21swapper/107:30:011
297482993222,7cyclictest0-21swapper/111:25:251
297482993221,7cyclictest0-21swapper/110:05:011
29748299321,3cyclictest131rcu_preempt09:00:121
297479993226,4cyclictest342999-21munin-plugin-st09:20:010
297479993224,5cyclictest355350-21cron09:55:000
29747999321,18cyclictest0-21swapper/011:07:490
297491993121,6cyclictest0-21swapper/307:20:263
297491993120,8cyclictest376349-21latency_hist10:55:003
297491993119,8cyclictest396452-21grep11:50:273
297487993120,8cyclictest1-21systemd10:00:492
297487993112,4cyclictest131rcu_preempt11:25:112
297482993123,4cyclictest0-21swapper/109:25:011
297479993122,6cyclictest0-21swapper/008:55:010
29747999310,3cyclictest0-21swapper/011:33:270
297491993023,4cyclictest398645-21sendmail12:00:003
297491993022,4cyclictest0-21swapper/312:05:003
297487993013,5cyclictest317033-21kworker/u8:0+events_unbound08:46:332
297482993022,5cyclictest322305-21kthreadd08:20:011
297482993021,5cyclictest0-21swapper/110:45:261
297482993018,8cyclictest365368-21grep10:20:271
297479993020,7cyclictest373876-21grep10:45:260
297479993012,3cyclictest0-21swapper/008:37:170
297491992921,5cyclictest391186-21unixbench_singl11:35:243
297491992921,4cyclictest0-21swapper/308:45:153
297491992919,5cyclictest0-21swapper/309:25:163
297487992923,4cyclictest400194-21kworker/u8:2+events_unbound12:05:422
297487992922,4cyclictest0-21swapper/209:50:002
297487992921,5cyclictest0-21swapper/212:25:252
297487992921,4cyclictest0-21swapper/207:50:162
297487992920,6cyclictest321303-21sort08:15:202
297487992919,7cyclictest410111-21grep12:30:262
297487992919,7cyclictest374547-21sort10:50:022
297487992918,5cyclictest365599-21kworker/u8:0+events_unbound10:44:162
297487992917,4cyclictest131rcu_preempt08:30:122
29747999291,7cyclictest379662-21cron11:05:010
297491992822,3cyclictest0-21swapper/308:35:203
297491992819,5cyclictest362398-21idleruntime-cro10:15:023
297491992818,6cyclictest0-21swapper/311:20:243
297487992822,3cyclictest0-21swapper/208:55:002
29748799281,9cyclictest0-21swapper/208:25:132
297487992817,8cyclictest355362-21ls09:55:002
29748799281,15cyclictest0-21swapper/210:25:132
297482992820,4cyclictest0-21swapper/112:15:271
297482992819,5cyclictest0-21swapper/108:20:171
297482992818,7cyclictest339594-21idleruntime-cro09:10:001
297482992817,8cyclictest0-21swapper/112:40:001
297479992820,4cyclictest0-21swapper/010:50:260
297479992818,7cyclictest370934-21sendmail10:40:010
297491992720,4cyclictest306745-21sh07:35:013
297491992720,4cyclictest0-21swapper/307:45:253
297491992720,3cyclictest0-21swapper/307:25:163
297491992719,4cyclictest0-21swapper/311:40:263
297491992719,3cyclictest0-21swapper/308:10:153
29748799278,5cyclictest131rcu_preempt09:00:122
297487992720,4cyclictest306754-21sh07:35:012
297487992720,4cyclictest0-21swapper/207:15:022
297487992712,5cyclictest357040-21kworker/u8:2+events_unbound10:19:252
297482992721,4cyclictest327344-21kworker/u8:2+events_unbound08:55:301
297482992719,5cyclictest0-21swapper/108:10:151
297482992719,4cyclictest0-21swapper/111:40:001
297482992719,4cyclictest0-21swapper/108:00:011
297482992719,4cyclictest0-21swapper/108:00:011
297482992718,5cyclictest0-21swapper/108:05:001
297482992717,7cyclictest395087-21latency_hist11:50:001
297482992717,6cyclictest0-21swapper/108:45:251
297479992718,6cyclictest0-21swapper/008:50:020
297479992717,6cyclictest0-21swapper/009:04:050
297479992716,7cyclictest0-21swapper/010:40:250
29749199266,4cyclictest378353-21grep11:00:153
297491992621,2cyclictest0-21swapper/310:55:243
297491992618,4cyclictest0-21swapper/312:15:003
297491992616,7cyclictest404988-21grep12:15:273
297491992616,7cyclictest317199-21auditctl08:05:003
297491992616,5cyclictest354101-21fschecks_time09:50:173
297491992615,7cyclictest1-21systemd11:10:563
297487992620,3cyclictest0-21swapper/207:25:252
297487992619,5cyclictest389847-21kworker/u8:1+events_unbound11:35:112
297487992618,6cyclictest382981-21kworker/u8:0+events_unbound11:24:422
297487992618,5cyclictest0-21swapper/212:00:242
29748799261,7cyclictest0-21swapper/210:35:122
297487992615,8cyclictest395806-21cut11:50:202
29748799260,5cyclictest131rcu_preempt09:10:132
29748299263,4cyclictest3841922timerandwakeup11:15:251
297482992618,4cyclictest0-21swapper/111:30:151
297482992615,7cyclictest0-21swapper/112:25:261
297482992615,7cyclictest0-21swapper/109:25:211
297479992617,4cyclictest0-21swapper/011:10:560
29747999261,3cyclictest0-21swapper/007:40:060
297491992518,4cyclictest0-21swapper/310:15:273
297491992518,3cyclictest0-21swapper/310:20:173
297491992517,4cyclictest0-21swapper/307:20:013
297491992515,6cyclictest0-21swapper/312:31:023
297487992519,4cyclictest403688-21kworker/u8:3+events_unbound12:16:032
297487992519,4cyclictest332263-21kworker/u8:1+events_unbound09:10:012
297487992519,4cyclictest275924-21kworker/u8:2+events_unbound07:22:082
297487992518,5cyclictest389847-21kworker/u8:1+events_unbound11:40:512
297487992518,5cyclictest377791-21kworker/u8:1+events_unbound11:01:502
297487992518,5cyclictest367335-21kworker/u8:1+events_unbound10:32:102
297487992518,5cyclictest0-21swapper/208:45:012
297487992517,4cyclictest0-21swapper/209:20:272
297487992517,4cyclictest0-21swapper/208:20:262
297487992517,4cyclictest0-21swapper/208:00:002
297487992517,4cyclictest0-21swapper/208:00:002
297487992517,3cyclictest0-21swapper/208:10:132
297482992518,5cyclictest24-21ksoftirqd/111:00:121
297482992518,4cyclictest410568-21cron12:35:001
297482992515,6cyclictest0-21swapper/110:10:251
297479992521,2cyclictest13550irq/42-30be0000.ethernet08:55:110
297479992519,3cyclictest13550irq/42-30be0000.ethernet08:20:010
297479992518,4cyclictest121ktimers/009:05:120
297479992517,4cyclictest0-21swapper/012:10:240
297479992515,7cyclictest348300-21cut09:35:010
29749199246,5cyclictest309219-21if_eth007:40:193
297491992418,3cyclictest0-21swapper/309:45:253
297491992417,3cyclictest0-21swapper/308:40:233
297491992416,5cyclictest391ktimers/309:30:553
297491992416,5cyclictest0-21swapper/307:35:163
297491992414,7cyclictest334502-21latency_hist08:55:013
29748799247,5cyclictest131rcu_preempt11:30:122
297487992417,4cyclictest0-21swapper/211:45:172
297487992411,4cyclictest131rcu_preempt12:20:122
297482992418,4cyclictest365599-21kworker/u8:0+events_unbound10:43:421
297482992418,3cyclictest0-21swapper/108:35:211
297482992418,3cyclictest0-21swapper/107:15:031
297482992417,3cyclictest0-21swapper/108:25:171
297482992415,6cyclictest0-21swapper/109:55:271
297482992415,5cyclictest0-21swapper/110:20:011
297482992413,7cyclictest0-21swapper/111:50:281
297479992418,3cyclictest0-21swapper/012:00:230
297479992418,3cyclictest0-21swapper/011:50:000
297479992417,3cyclictest0-21swapper/009:27:380
297479992415,5cyclictest357426-1kworker/0:1H+mmc_complete12:00:000
29747999241,19cyclictest0-21swapper/011:41:210
29747999241,19cyclictest0-21swapper/009:49:150
29747999241,19cyclictest0-21swapper/009:40:440
297491992314,6cyclictest340886-21grep09:10:263
297491992313,7cyclictest312496-21grep07:50:163
297491992313,6cyclictest395005-21cron11:50:003
297491992312,8cyclictest360090-21sed10:05:243
297491992312,8cyclictest349117-21ntp_states09:35:193
297487992317,4cyclictest342888-21kworker/u8:2+events_unbound09:27:012
297482992317,4cyclictest275924-21kworker/u8:2+events_unbound07:23:511
297482992315,4cyclictest0-21swapper/111:55:231
297482992315,4cyclictest0-21swapper/108:50:271
297482992313,6cyclictest0-21swapper/112:00:231
297479992317,2cyclictest0-21swapper/008:05:250
297479992316,4cyclictest410114-21unixbench_multi12:30:250
297479992316,3cyclictest0-21swapper/008:11:060
297479992314,7cyclictest121ktimers/011:50:150
297479992312,8cyclictest366675-21ps10:25:230
29747999231,18cyclictest0-21swapper/012:39:100
29747999231,18cyclictest0-21swapper/011:28:400
29747999231,18cyclictest0-21swapper/008:40:500
29747999230,19cyclictest0-21swapper/011:23:050
29747999230,19cyclictest0-21swapper/007:16:560
297491992216,3cyclictest0-21swapper/307:15:013
297487992216,3cyclictest0-21swapper/212:35:172
297482992216,4cyclictest327431-21latency_hist08:35:011
297482992216,3cyclictest0-21swapper/107:40:211
297482992215,4cyclictest0-21swapper/111:40:261
297482992215,3cyclictest0-21swapper/110:35:171
297482992214,4cyclictest0-21swapper/111:20:251
297482992212,7cyclictest401147-21ntp_states12:05:201
297479992212,7cyclictest326974-21awk08:30:250
29747999221,19cyclictest0-21swapper/010:05:220
29747999220,18cyclictest0-21swapper/009:13:100
29749199219,8cyclictest1-21systemd11:30:593
297491992113,5cyclictest0-21swapper/307:55:163
297491992113,5cyclictest0-21swapper/307:55:163
297491992113,4cyclictest0-21swapper/312:06:013
297482992113,5cyclictest231ktimers/109:55:011
297482992111,6cyclictest0-21swapper/109:30:161
297482992110,8cyclictest366798-21mailstats10:25:251
297491992013,4cyclictest438-21cron11:20:003
29749199201,17cyclictest391ktimers/308:25:193
297491992011,6cyclictest406229-21tr12:20:213
297482992010,6cyclictest0-21swapper/111:05:261
297491991913,3cyclictest0-21swapper/311:25:193
297482991912,5cyclictest231ktimers/107:45:121
297491991812,3cyclictest0-21swapper/310:25:163
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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