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2026-08-25 - 04:15

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 highest latencies:
System rackbslot5s.osadl.org (updated Tue Aug 25, 2026 00:44:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2457696995133,11cyclictest231ktimers/100:30:121
2457696995042,5cyclictest2560130-21munin-plugin-st00:10:001
2457696995040,7cyclictest2489947-21runrttasks20:40:191
2457696995040,7cyclictest2489947-21runrttasks20:40:191
2457693995042,5cyclictest2468466-21idleruntime-cro19:40:000
2457693995036,10cyclictest121ktimers/023:55:080
2457693994941,4cyclictest2511485-21unixbench_multi21:40:260
2457693994639,5cyclictest2538022-21kworker/u8:1+events_unbound23:02:420
2457703994535,7cyclictest2490624-21unixbench_singl20:40:273
2457703994535,7cyclictest2490624-21unixbench_singl20:40:273
2457700994536,5cyclictest2562472-21apt-get00:20:002
2457696994437,5cyclictest2527259-21kworker/u8:1+events_unbound22:27:371
2457696994437,5cyclictest2527259-21kworker/u8:1+events_unbound22:27:361
2457703994336,4cyclictest2561806-21cron00:15:003
2457703994331,8cyclictest2569511-21cron00:40:003
2457703994234,5cyclictest0-21swapper/322:55:003
2457700994235,4cyclictest2461639-21munin-plugin-st19:20:002
2457700994235,4cyclictest2461639-21munin-plugin-st19:20:002
2457696994232,6cyclictest2562460-21munin-run00:20:001
2457693994135,4cyclictest2513445-21kworker/u8:0+events_unbound22:02:360
2457703994030,7cyclictest2494904-21fschecks_time20:55:163
2457693994029,8cyclictest2487630-21sh20:35:000
2457700993929,7cyclictest2473634-21apt-config19:55:012
2457693993932,5cyclictest2565879-21kworker/u8:0+events_unbound00:28:020
2457693993927,8cyclictest2513174-21grep21:45:290
2457700993821,6cyclictest2492432-21kworker/u8:2+events_unbound20:51:152
2457696993830,5cyclictest2499585-21cron21:10:011
2457693993831,5cyclictest2553197-21kworker/u8:0+events_unbound23:47:570
2457693993829,5cyclictest2564392-21munin-plugin-st00:25:010
2457693993827,8cyclictest2480599-21auditctl20:15:010
2457703993729,4cyclictest0-21swapper/321:15:293
2457703993726,7cyclictest0-21swapper/322:45:013
2457703993725,8cyclictest2494040-21grep20:50:263
2457703993724,9cyclictest391ktimers/323:10:123
2457700993727,6cyclictest2511470-21grep21:40:272
2457693993717,5cyclictest131rcu_preempt20:45:200
2457703993629,4cyclictest2511472-21unixbench_multi21:40:273
2457700993629,4cyclictest2538172-21sendmail23:00:002
2457700993626,6cyclictest0-21swapper/220:35:262
2457693993629,5cyclictest2463173-21kworker/u8:1+events_unbound19:27:200
2457693993626,6cyclictest2553123-21unixbench_singl23:40:270
2457693993625,8cyclictest2462876-21grep19:20:260
2457693993625,8cyclictest2462876-21grep19:20:260
2457693993624,5cyclictest131rcu_preempt21:50:120
2457703993528,4cyclictest2517102-21latency_hist22:00:013
2457703993526,5cyclictest0-21swapper/320:35:263
2457700993526,6cyclictest2464585-21unixbench_multi19:25:312
2457700993524,6cyclictest0-21swapper/221:05:262
2457693993528,5cyclictest2503132-21kworker/u8:1+events_unbound21:26:420
2457693993528,5cyclictest2503132-21kworker/u8:1+events_unbound21:26:410
2457693993527,4cyclictest2482191-21kworker/u8:0+events_unbound20:24:420
2457693993521,4cyclictest2542921-21kworker/u8:3-events_freezable_power_23:35:000
2457693993518,4cyclictest131rcu_preempt20:39:130
2457693993517,4cyclictest131rcu_preempt00:34:340
2457693993516,9cyclictest131rcu_preempt22:10:530
2457693993512,5cyclictest131rcu_preempt19:55:200
2457703993426,4cyclictest0-21swapper/322:55:173
2457703993424,6cyclictest0-21swapper/323:57:143
2457700993426,5cyclictest2569531-21run-parts00:40:002
2457700993425,6cyclictest0-21swapper/200:35:002
2457700993424,6cyclictest0-21swapper/223:25:012
2457700993424,6cyclictest0-21swapper/219:15:012
2457696993425,5cyclictest0-21swapper/122:00:271
2457696993423,7cyclictest2483542-21grep20:20:261
2457696993423,7cyclictest0-21swapper/120:00:261
2457693993427,4cyclictest0-21swapper/022:20:000
2457693993426,4cyclictest0-21swapper/022:00:010
2457693993423,8cyclictest2458857-21grep19:10:250
2457693993423,4cyclictest131rcu_preempt23:10:190
2457693993414,10cyclictest131rcu_preempt20:40:200
2457693993414,10cyclictest131rcu_preempt20:40:200
2457703993326,4cyclictest0-21swapper/321:55:013
2457700993324,6cyclictest0-21swapper/222:45:022
2457700993319,11cyclictest311ktimers/223:35:232
2457693993324,6cyclictest0-21swapper/023:30:010
2457693993322,6cyclictest0-21swapper/022:45:010
2457693993316,9cyclictest131rcu_preempt22:45:240
2457693993316,10cyclictest131rcu_preempt23:38:050
2457693993314,5cyclictest131rcu_preempt19:48:440
2457693993311,5cyclictest131rcu_preempt21:20:020
2457693993311,4cyclictest131rcu_preempt19:31:060
2457693993310,4cyclictest151rcuc/023:52:070
2457703993224,4cyclictest0-21swapper/323:20:163
2457703993224,4cyclictest0-21swapper/322:15:163
2457703993223,5cyclictest0-21swapper/323:00:273
2457700993224,6cyclictest2471868-21cron19:50:012
2457700993224,4cyclictest0-21swapper/220:25:172
2457700993222,6cyclictest0-21swapper/221:20:262
245769699322,6cyclictest131rcu_preempt00:35:101
2457696993224,4cyclictest0-21swapper/120:10:011
2457696993223,6cyclictest0-21swapper/122:40:251
2457696993223,4cyclictest0-21swapper/119:25:001
2457696993223,4cyclictest0-21swapper/119:25:001
2457693993226,4cyclictest2544655-21kworker/u8:0+events_unbound23:21:420
2457693993222,6cyclictest2499155-21unixbench_singl21:05:260
2457693993221,7cyclictest121ktimers/023:10:000
2457693993218,4cyclictest131rcu_preempt21:35:170
2457693993218,4cyclictest131rcu_preempt21:20:170
2457693993216,5cyclictest131rcu_preempt22:30:000
2457693993216,5cyclictest131rcu_preempt22:30:000
2457693993215,4cyclictest0-21swapper/019:17:260
2457693993215,4cyclictest0-21swapper/019:17:250
2457693993214,11cyclictest131rcu_preempt21:10:210
2457693993214,10cyclictest131rcu_preempt00:02:310
2457693993213,4cyclictest131rcu_preempt20:29:050
2457693993212,5cyclictest131rcu_preempt22:35:100
2457693993211,12cyclictest11-21ksoftirqd/020:05:010
2457703993123,4cyclictest0-21swapper/319:45:253
2457703993121,7cyclictest0-21swapper/322:25:003
2457703993120,7cyclictest2551817-21sendmail23:40:003
2457700993123,5cyclictest0-21swapper/221:15:012
2457700993123,5cyclictest0-21swapper/220:25:012
245769699313,5cyclictest131rcu_preempt20:15:141
2457696993122,5cyclictest2517055-21latency_hist22:00:011
2457696993122,4cyclictest0-21swapper/119:55:011
2457696993121,6cyclictest0-21swapper/119:10:251
2457696993117,10cyclictest2468471-21tr19:40:001
2457693993115,4cyclictest131rcu_preempt00:09:210
2457693993112,4cyclictest131rcu_preempt00:39:460
2457693993111,10cyclictest131rcu_preempt21:30:160
2457693993111,10cyclictest131rcu_preempt21:30:160
2457703993022,4cyclictest0-21swapper/323:50:003
2457703993021,4cyclictest0-21swapper/320:30:273
2457700993022,4cyclictest0-21swapper/223:10:262
2457700993020,6cyclictest0-21swapper/222:05:002
2457696993023,5cyclictest2562398-21kworker/u8:2+events_unbound00:23:001
2457696993020,6cyclictest0-21swapper/122:55:011
245769699301,5cyclictest2466646-21kworker/u8:1+events_freezable_power_19:45:141
245769399309,5cyclictest131rcu_preempt22:05:190
245769399308,5cyclictest131rcu_preempt00:10:210
245769399305,3cyclictest0-21swapper/019:50:220
245769399302,21cyclictest11-21ksoftirqd/019:40:180
2457693993020,7cyclictest2494034-21grep20:50:260
2457693993014,3cyclictest131rcu_preempt20:08:000
2457693993013,9cyclictest131rcu_preempt22:55:210
2457693993013,10cyclictest131rcu_preempt23:15:150
2457693993011,11cyclictest131rcu_preempt20:55:160
2457693993010,4cyclictest131rcu_preempt22:33:050
2457703992922,4cyclictest0-21swapper/319:40:263
2457703992919,7cyclictest2552193-21fschecks_count23:40:173
2457703992917,8cyclictest2562480-21basename00:20:003
2457700992923,3cyclictest0-21swapper/222:20:002
2457700992922,5cyclictest2503132-21kworker/u8:1+events_unbound21:37:342
2457700992922,4cyclictest2491429-21fschecks_count20:45:162
2457700992921,5cyclictest2534115-21unixbench_singl22:45:242
2457700992921,4cyclictest0-21swapper/223:35:002
2457696992922,5cyclictest2488968-21kworker/u8:0+events_unbound20:36:421
2457696992921,4cyclictest0-21swapper/121:10:251
245769699290,5cyclictest131rcu_preempt23:15:131
245769399299,4cyclictest131rcu_preempt00:16:020
2457693992913,4cyclictest131rcu_preempt20:15:190
2457693992911,3cyclictest0-21swapper/022:24:030
2457693992910,6cyclictest131rcu_preempt22:50:160
245770399288,4cyclictest2505684-21if_eth121:25:153
245770399288,4cyclictest2505684-21if_eth121:25:143
2457703992822,4cyclictest2464918-21kworker/u8:2+events_unbound19:32:233
2457703992820,4cyclictest0-21swapper/322:00:273
2457703992819,5cyclictest0-21swapper/300:21:233
2457703992818,7cyclictest2472280-21tune2fs19:50:163
2457700992823,3cyclictest2503132-21kworker/u8:1+events_unbound21:32:322
2457700992823,3cyclictest2503132-21kworker/u8:1+events_unbound21:32:312
2457700992820,4cyclictest0-21swapper/200:21:242
2457700992819,5cyclictest0-21swapper/222:00:002
2457700992816,9cyclictest2544999-21tr23:20:002
2457696992820,4cyclictest0-21swapper/120:55:251
245769699281,8cyclictest2469697-21grep19:40:261
2457696992818,7cyclictest2552189-21fschecks_count23:40:171
2457696992816,8cyclictest2538158-21cat22:59:591
245769399284,5cyclictest11-21ksoftirqd/021:00:140
2457703992720,4cyclictest0-21swapper/319:55:173
2457703992719,5cyclictest0-21swapper/322:35:143
2457700992720,4cyclictest0-21swapper/223:05:262
2457700992720,4cyclictest0-21swapper/222:05:182
2457700992719,4cyclictest0-21swapper/200:00:242
2457696992721,4cyclictest2482191-21kworker/u8:0+events_unbound20:27:251
2457696992719,4cyclictest0-21swapper/122:35:001
245769699271,8cyclictest204-21dbus-daemon23:02:421
2457696992716,7cyclictest0-21swapper/120:45:171
2457703992620,3cyclictest2560125-21kthreadd00:10:003
2457703992620,3cyclictest2555003-21kthreadd23:55:003
2457703992620,3cyclictest0-21swapper/321:00:223
2457703992616,6cyclictest2541573-21sh23:10:013
2457700992620,3cyclictest0-21swapper/219:40:012
2457700992618,5cyclictest0-21swapper/223:00:202
2457700992618,5cyclictest0-21swapper/222:55:012
2457700992618,5cyclictest0-21swapper/220:00:262
2457700992618,3cyclictest0-21swapper/221:50:142
2457700992617,6cyclictest0-21swapper/223:50:002
2457700992617,5cyclictest0-21swapper/221:15:192
2457696992619,4cyclictest0-21swapper/121:45:291
2457703992519,3cyclictest0-21swapper/320:10:213
2457703992518,4cyclictest0-21swapper/323:15:273
2457703992517,4cyclictest0-21swapper/322:30:253
2457703992517,4cyclictest0-21swapper/319:15:013
2457703992516,6cyclictest2491453-21uniq20:45:163
2457703992516,6cyclictest0-21swapper/320:15:283
2457703992516,5cyclictest0-21swapper/300:00:243
2457703992514,8cyclictest204-21dbus-daemon19:27:203
2457703992513,8cyclictest2504683-21grep21:20:263
2457703992513,7cyclictest0-21swapper/319:40:003
2457703992511,9cyclictest0-21swapper/321:35:193
2457700992519,3cyclictest0-21swapper/222:35:172
2457700992518,4cyclictest2566084-21latency_hist00:30:002
2457700992515,5cyclictest2559706-21grep00:05:282
2457700992514,8cyclictest2462454-21ntp_states19:20:232
2457700992514,8cyclictest2462454-21ntp_states19:20:232
245769699256,12cyclictest131rcu_preempt20:50:121
2457696992519,4cyclictest2511656-21kworker/u8:2+events_unbound21:51:071
2457696992519,3cyclictest0-21swapper/123:20:161
2457696992518,5cyclictest2539756-21kworker/u8:0+events_unbound23:05:161
2457696992515,6cyclictest0-21swapper/123:55:141
2457703992418,3cyclictest0-21swapper/321:45:283
2457703992418,3cyclictest0-21swapper/319:15:173
2457703992418,3cyclictest0-21swapper/319:15:173
2457703992416,6cyclictest391ktimers/322:10:103
245770099247,8cyclictest131rcu_preempt23:25:122
2457700992418,4cyclictest2480475-21kworker/u8:2+events_unbound20:18:322
2457700992418,3cyclictest0-21swapper/223:40:232
2457700992417,3cyclictest0-21swapper/222:27:372
2457700992417,3cyclictest0-21swapper/222:27:372
2457700992416,6cyclictest2491067-21cut20:45:002
2457700992416,6cyclictest2491067-21cut20:44:592
2457696992418,4cyclictest2513445-21kworker/u8:0+events_unbound22:10:181
2457696992418,3cyclictest0-21swapper/121:00:151
2457696992416,5cyclictest0-21swapper/119:25:211
2457696992416,4cyclictest0-21swapper/100:00:141
2457696992414,6cyclictest0-21swapper/100:25:271
2457696992413,6cyclictest2523617-21grep22:15:271
2457696992412,8cyclictest231ktimers/100:10:141
2457703992317,3cyclictest0-21swapper/321:30:193
2457703992317,3cyclictest0-21swapper/321:30:193
2457703992316,4cyclictest2484963-21missed_timers20:25:213
2457703992315,5cyclictest0-21swapper/323:25:153
2457703992315,5cyclictest0-21swapper/322:45:253
2457703992315,4cyclictest0-21swapper/322:25:163
2457703992315,4cyclictest0-21swapper/322:25:163
2457700992317,3cyclictest0-21swapper/222:10:162
2457700992317,3cyclictest0-21swapper/221:00:172
2457700992317,3cyclictest0-21swapper/219:55:172
2457700992316,4cyclictest0-21swapper/220:05:262
2457700992316,3cyclictest0-21swapper/221:00:002
2457700992316,3cyclictest0-21swapper/219:40:172
2457700992315,5cyclictest0-21swapper/222:35:002
245769699235,5cyclictest2554348-21latency_hist23:50:011
245769699234,3cyclictest131rcu_preempt21:15:071
2457696992317,4cyclictest2551446-21kworker/u8:2+events_unbound23:36:131
2457696992317,4cyclictest2494160-21kworker/u8:0+events_unbound21:22:381
2457696992317,3cyclictest0-21swapper/123:30:001
2457696992316,5cyclictest2503132-21kworker/u8:1+events_unbound21:25:171
2457696992316,5cyclictest2503132-21kworker/u8:1+events_unbound21:25:171
2457696992315,5cyclictest0-21swapper/122:05:171
245769699231,3cyclictest131rcu_preempt20:10:131
245769699230,5cyclictest131rcu_preempt22:20:121
2457703992216,3cyclictest0-21swapper/322:05:153
2457703992216,3cyclictest0-21swapper/321:10:253
2457703992216,3cyclictest0-21swapper/321:10:013
2457703992215,3cyclictest0-21swapper/320:05:263
2457700992216,3cyclictest0-21swapper/221:25:132
2457700992216,3cyclictest0-21swapper/221:25:132
2457700992214,6cyclictest311ktimers/223:50:042
2457700992214,5cyclictest0-21swapper/220:10:172
2457700992211,8cyclictest2512610-21cat21:45:222
2457700992211,8cyclictest2486780-21proc_pri20:30:242
2457696992216,4cyclictest2523776-21kworker/u8:0+events_unbound22:48:591
2457696992216,4cyclictest2455798-21kworker/u8:0+events_unbound19:17:201
2457696992216,4cyclictest2455798-21kworker/u8:0+events_unbound19:17:201
2457696992216,3cyclictest0-21swapper/120:30:221
2457696992215,4cyclictest0-21swapper/123:10:211
2457696992215,3cyclictest0-21swapper/121:30:181
2457696992215,3cyclictest0-21swapper/121:30:181
2457696992213,5cyclictest2530903-21cron22:40:001
2457703992115,3cyclictest0-21swapper/320:00:153
2457703992113,4cyclictest0-21swapper/300:30:253
2457703992110,8cyclictest2565049-21date00:25:203
2457700992115,3cyclictest0-21swapper/222:20:162
245769699219,3cyclictest131rcu_preempt21:40:171
2457696992116,3cyclictest2473292-21kworker/u8:2+events_unbound19:55:161
2457696992112,6cyclictest0-21swapper/123:30:161
2457703992014,4cyclictest2483115-21ntp_offset20:20:223
2457703992010,7cyclictest2463471-21cat19:25:013
2457703992010,7cyclictest2463471-21cat19:25:003
2457700992014,3cyclictest0-21swapper/200:14:592
2457700992010,7cyclictest2465393-21df_inode19:30:142
2457700991911,5cyclictest2555406-21cut23:55:122
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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