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2026-08-30 - 22:26

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 Sun Aug 30, 2026 12:44:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
311468995543,8cyclictest352077-21cron09:05:012
311468995242,6cyclictest355701-21grep09:15:012
311468994930,14cyclictest357399-21cron09:20:002
311473994840,5cyclictest336505-21cron08:20:003
311465994719,18cyclictest322655-21munin-run07:40:001
311460994740,4cyclictest418592-21munin-plugin-st12:15:000
311473994639,4cyclictest362542-21munin-plugin-st09:35:013
311468994617,26cyclictest345553-21ls08:45:132
311473994536,4cyclictest318916-21kworker/u8:1+events_unbound07:49:273
311473994536,4cyclictest318916-21kworker/u8:1+events_unbound07:49:273
311468994515,26cyclictest405969-21unixbench_multi11:35:242
311473994438,4cyclictest422181-21kworker/u8:1+events_unbound12:25:073
311468994420,20cyclictest0-21swapper/211:50:172
31146899441,9cyclictest402087-21/usr/sbin/munin11:25:212
311468994416,25cyclictest328567-21ntpq07:55:222
311468994415,25cyclictest0-21swapper/211:00:242
311468994410,30cyclictest370860-21unixbench_singl09:55:272
311468994410,30cyclictest370860-21unixbench_singl09:55:272
311473994333,7cyclictest313512-21fschecks_time07:15:023
311473994333,5cyclictest406798-21kworker/u8:1+events_unbound11:45:033
31146899432,7cyclictest381001-21tr10:25:222
311468994322,18cyclictest345259-21cron08:45:012
31146899432,11cyclictest311861-21tune2fs07:10:172
31146899432,10cyclictest407725-21unixbench_singl11:40:252
311468994315,25cyclictest330765-21grep08:00:252
31146899431,10cyclictest389435-21/usr/sbin/munin10:50:202
311473994218,15cyclictest0-21swapper/308:40:013
31146899427,5cyclictest0-21swapper/207:38:062
31146899422,10cyclictest414770-21unixbench_singl12:00:292
311468994212,27cyclictest0-21swapper/210:55:262
311468994212,26cyclictest0-21swapper/211:20:002
31146899421,10cyclictest317124-21apt-get07:25:052
311460994235,4cyclictest378512-21kthreadd10:20:000
311460994235,4cyclictest378512-21kthreadd10:20:000
311473994131,5cyclictest351179-21kworker/u8:2+events_unbound09:04:403
31146899419,6cyclictest375418-21/usr/sbin/munin10:10:122
31146899413,8cyclictest362924-21cut09:35:142
31146899412,8cyclictest372728-21unixbench_multi10:00:252
31146899412,7cyclictest337758-21tail08:20:252
31146899412,13cyclictest420038-21unixbench_multi12:15:282
31146899412,13cyclictest404714-21cron11:35:002
31146899412,11cyclictest358671-21unixbench_multi09:20:282
31146899412,10cyclictest424141-21sshd12:30:072
31146899411,9cyclictest421527-21/usr/sbin/munin12:20:232
31146899411,11cyclictest342215-21/usr/sbin/munin08:35:152
31146899411,10cyclictest396780-21/usr/sbin/munin11:10:242
311460994129,8cyclictest343124-21grep08:35:260
311473994021,10cyclictest131rcu_preempt08:00:443
31146899403,6cyclictest339481-21tail08:25:262
31146899403,11cyclictest334406-21head08:10:262
31146899402,9cyclictest385580-21/usr/sbin/munin10:40:192
31146899402,7cyclictest378072-21head10:15:252
31146899402,7cyclictest378072-21head10:15:252
31146899402,6cyclictest374439-21grep10:05:252
31146899402,12cyclictest418163-21head12:10:252
31146899402,11cyclictest341225-21grep08:30:262
31146899401,9cyclictest382158-21munin-node10:30:122
31146899401,7cyclictest332487-21head08:05:242
311468994012,23cyclictest0-21swapper/209:34:452
311468994011,3cyclictest0-21swapper/210:35:172
31146899401,10cyclictest409369-21grep11:45:252
31146899401,10cyclictest395385-21unixbench_singl11:05:252
31146899401,10cyclictest395385-21unixbench_singl11:05:252
311465994031,5cyclictest420042-21unixbench_multi12:15:281
31146099409,11cyclictest391620-21sendmail_mailtr10:55:240
311460994033,4cyclictest420050-21unixbench_multi12:15:280
31146099401,22cyclictest0-21swapper/011:10:000
31146099401,22cyclictest0-21swapper/011:10:000
311460994011,10cyclictest338462-21/usr/sbin/munin08:25:150
311473993931,5cyclictest399193-21cut11:20:003
311473993927,5cyclictest390150-21kworker/u8:0+events_unbound11:44:423
31146899393,7cyclictest1-21systemd07:49:262
31146899393,7cyclictest1-21systemd07:49:262
31146899392,7cyclictest416874-21cron12:10:002
31146899392,6cyclictest369110-21unixbench_multi09:50:252
31146899392,6cyclictest369110-21unixbench_multi09:50:252
31146899392,6cyclictest315394-21cron07:20:002
31146899392,5cyclictest0-21swapper/209:40:222
31146899392,11cyclictest353326-21tail09:05:262
31146899392,10cyclictest425843-21sshd12:35:062
31146899391,8cyclictest378898-21fschecks_count10:20:162
31146899391,7cyclictest399862-21fschecks_time11:20:152
311468993911,3cyclictest0-21swapper/207:50:192
31146899391,10cyclictest316645-21sed07:20:252
311465993931,4cyclictest0-21swapper/109:30:011
311465993929,7cyclictest379763-21unixbench_multi10:20:251
311473993832,4cyclictest390150-21kworker/u8:0+events_unbound11:30:033
311473993832,4cyclictest366390-21kworker/u8:2+events_unbound10:04:523
311473993827,7cyclictest0-21swapper/312:15:283
311473993824,5cyclictest131rcu_preempt09:05:153
311473993824,4cyclictest131rcu_preempt10:46:323
311473993820,11cyclictest131rcu_preempt09:41:483
311473993817,4cyclictest131rcu_preempt12:06:593
31146899385,4cyclictest0-21swapper/211:55:222
31146899382,8cyclictest422672-21fschecks_time12:25:162
31146899382,8cyclictest335820-21wc08:15:232
31146899382,6cyclictest347746-21grep08:50:212
31146899381,9cyclictest367383-21grep09:45:262
31146899381,9cyclictest367383-21grep09:45:262
311468993812,8cyclictest387455-21cut10:45:152
311465993826,8cyclictest231ktimers/109:00:131
311460993811,6cyclictest11-21ksoftirqd/011:00:270
311473993731,4cyclictest316979-21kworker/u8:0+events_unbound07:24:213
311473993727,7cyclictest0-21swapper/308:40:263
311473993727,6cyclictest328147-21fschecks_count07:55:173
311473993723,4cyclictest131rcu_preempt08:32:403
311473993716,10cyclictest131rcu_preempt10:58:263
31146899372,6cyclictest323957-21unixbench_singl07:40:262
31146899371,9cyclictest349346-21meminfo08:55:192
311468993711,3cyclictest0-21swapper/209:25:452
311465993729,4cyclictest0-21swapper/111:55:001
31146099376,16cyclictest0-21swapper/010:25:000
31146099375,15cyclictest0-21swapper/008:30:250
311460993730,4cyclictest0-21swapper/007:45:000
311460993728,4cyclictest0-21swapper/010:55:010
311473993628,6cyclictest390150-21kworker/u8:0+events_unbound11:56:403
311473993623,4cyclictest131rcu_preempt12:02:293
311473993621,4cyclictest131rcu_preempt07:29:263
311473993619,4cyclictest131rcu_preempt08:59:153
311473993618,6cyclictest131rcu_preempt09:26:333
311473993618,4cyclictest131rcu_preempt08:06:483
31146899361,8cyclictest320339-21runrttasks07:30:262
311465993626,7cyclictest0-21swapper/108:30:001
311465993626,6cyclictest0-21swapper/111:20:001
31146099366,12cyclictest370540-21basename09:55:250
31146099366,12cyclictest370540-21basename09:55:250
31146099364,18cyclictest0-21swapper/007:15:140
311460993629,4cyclictest357402-21cron09:20:000
311460993627,7cyclictest385346-21idleruntime-cro10:40:010
311460993626,7cyclictest0-21swapper/011:15:000
311473993522,4cyclictest131rcu_preempt10:39:093
311473993521,4cyclictest131rcu_preempt11:00:523
311473993518,4cyclictest131rcu_preempt10:10:003
311473993517,5cyclictest131rcu_preempt10:30:563
311465993527,5cyclictest0-21swapper/109:45:001
311465993518,10cyclictest131rcu_preempt10:35:141
31146099359,21cyclictest338335-21cat08:25:010
311460993525,7cyclictest413246-21apt-get12:00:000
311460993524,7cyclictest355028-21grep09:10:270
31147399345,8cyclictest40-21ksoftirqd/311:55:003
311473993426,5cyclictest378521-21munin-plugin-st10:20:003
311473993426,5cyclictest378521-21munin-plugin-st10:20:003
311473993422,4cyclictest131rcu_preempt09:15:263
311473993421,5cyclictest131rcu_preempt08:45:163
311473993419,4cyclictest131rcu_preempt09:56:163
311473993419,4cyclictest131rcu_preempt09:56:163
311473993418,5cyclictest131rcu_preempt11:35:133
311473993415,5cyclictest131rcu_preempt12:20:233
311473993415,10cyclictest131rcu_preempt08:10:163
311473993413,11cyclictest131rcu_preempt09:10:203
311473993411,14cyclictest131rcu_preempt09:50:173
311473993411,14cyclictest131rcu_preempt09:50:163
311465993425,6cyclictest0-21swapper/111:05:001
31146099347,11cyclictest385637-21cpuspeed10:40:140
31146099347,11cyclictest350361-21cron09:00:010
311460993428,3cyclictest13550irq/42-30be0000.ethernet11:25:020
311460993427,4cyclictest0-21swapper/008:20:000
311460993425,6cyclictest121ktimers/012:05:120
31147399337,16cyclictest40-21ksoftirqd/309:40:013
311473993324,5cyclictest1-21systemd11:20:013
311473993322,7cyclictest0-21swapper/310:50:253
311473993320,4cyclictest131rcu_preempt10:27:003
311473993320,4cyclictest131rcu_preempt10:24:253
311473993315,10cyclictest131rcu_preempt10:40:183
311473993314,6cyclictest326881-21ntpq07:50:203
311473993312,10cyclictest0-21swapper/308:50:063
31146599336,5cyclictest24-21ksoftirqd/111:10:221
311465993323,7cyclictest353788-21latency_hist09:10:011
311465993321,8cyclictest0-21swapper/110:55:001
31146099338,22cyclictest0-21swapper/011:20:190
311460993313,5cyclictest11-21ksoftirqd/010:00:230
311460993312,6cyclictest11-21ksoftirqd/007:50:010
311460993312,6cyclictest11-21ksoftirqd/007:50:010
31147399329,14cyclictest40-21ksoftirqd/308:20:153
311473993224,4cyclictest0-21swapper/307:40:263
311473993223,6cyclictest339524-21unixbench_singl08:25:263
311473993222,5cyclictest350073-21kworker/u8:0+events_unbound09:22:003
311473993220,5cyclictest131rcu_preempt11:25:133
311473993219,5cyclictest131rcu_preempt11:05:243
311473993219,5cyclictest131rcu_preempt11:05:243
311473993216,5cyclictest131rcu_preempt12:30:183
311473993216,5cyclictest131rcu_preempt09:45:213
311473993216,5cyclictest131rcu_preempt09:45:213
311473993210,15cyclictest40-21ksoftirqd/311:10:163
311473993210,13cyclictest40-21ksoftirqd/307:30:253
311465993225,4cyclictest0-21swapper/111:50:001
311465993224,4cyclictest0-21swapper/108:09:291
311465993223,6cyclictest0-21swapper/108:19:591
311465993215,8cyclictest131rcu_preempt08:51:301
31146099327,8cyclictest0-21swapper/011:40:150
31146099326,9cyclictest376689-21chrt10:13:450
311460993224,4cyclictest0-21swapper/009:55:000
311460993224,4cyclictest0-21swapper/009:55:000
311460993224,4cyclictest0-21swapper/009:40:010
311460993222,6cyclictest0-21swapper/008:10:260
311460993219,10cyclictest374798-21cron10:09:000
31147399319,11cyclictest40-21ksoftirqd/312:35:253
311473993117,11cyclictest391ktimers/312:11:143
311473993115,4cyclictest131rcu_preempt10:12:133
311473993115,4cyclictest131rcu_preempt07:12:413
311473993111,4cyclictest0-21swapper/307:35:143
31146599315,8cyclictest24-21ksoftirqd/109:55:011
31146599315,8cyclictest24-21ksoftirqd/109:55:011
311465993124,4cyclictest0-21swapper/111:35:241
311465993124,4cyclictest0-21swapper/111:05:251
311465993124,4cyclictest0-21swapper/111:05:251
311465993123,4cyclictest0-21swapper/108:39:351
311465993122,7cyclictest319696-21fschecks_time07:30:171
311465993121,6cyclictest0-21swapper/108:10:261
311465993120,7cyclictest0-21swapper/107:20:001
311465993116,4cyclictest131rcu_preempt10:15:051
311465993116,4cyclictest131rcu_preempt10:15:051
31146099319,11cyclictest131rcu_preempt09:28:140
31146599306,6cyclictest24-21ksoftirqd/110:00:201
31146599305,5cyclictest24-21ksoftirqd/109:20:001
31146599304,8cyclictest24-21ksoftirqd/111:20:011
31146599302,6cyclictest24-21ksoftirqd/108:20:261
311465993023,3cyclictest0-21swapper/110:10:011
311465993022,5cyclictest0-21swapper/108:45:011
311465993020,7cyclictest231ktimers/111:35:011
311465993014,9cyclictest131rcu_preempt08:03:291
311465993013,8cyclictest131rcu_preempt11:43:491
31146599301,15cyclictest0-21swapper/112:00:551
311465993011,10cyclictest326624-21if_eth107:50:161
31146099304,15cyclictest0-21swapper/008:50:190
311460993021,6cyclictest0-21swapper/008:45:010
31146599297,6cyclictest24-21ksoftirqd/110:55:161
31146599293,6cyclictest24-21ksoftirqd/109:15:011
311465992920,6cyclictest0-21swapper/110:00:011
311465992920,6cyclictest0-21swapper/110:00:011
311465992920,5cyclictest0-21swapper/108:00:001
311465992917,8cyclictest0-21swapper/107:45:271
311465992917,8cyclictest0-21swapper/107:45:271
311465992917,4cyclictest131rcu_preempt12:07:511
311465992913,9cyclictest131rcu_preempt07:29:551
31146599291,16cyclictest0-21swapper/112:30:031
31146099299,5cyclictest11-21ksoftirqd/007:25:270
311460992920,6cyclictest0-21swapper/011:40:000
311460992919,7cyclictest425524-21cron12:34:000
311460992912,13cyclictest399321-21latency_hist11:20:000
311460992911,12cyclictest0-21swapper/009:20:140
31146599286,12cyclictest131rcu_preempt08:30:321
31146599283,8cyclictest24-21ksoftirqd/108:50:001
31146599283,6cyclictest24-21ksoftirqd/108:55:161
31146599282,7cyclictest24-21ksoftirqd/112:25:011
311465992821,4cyclictest413255-21cut12:00:001
311465992819,6cyclictest0-21swapper/112:35:261
311465992818,7cyclictest231ktimers/107:40:241
311465992817,4cyclictest131rcu_preempt10:48:391
311465992815,4cyclictest131rcu_preempt09:20:141
311465992811,8cyclictest131rcu_preempt09:30:391
31146099289,9cyclictest131rcu_preempt08:04:540
31146099287,9cyclictest131rcu_preempt10:27:150
311460992822,3cyclictest352321-21apt-get09:05:140
311460992816,9cyclictest409053-21/usr/sbin/munin11:45:220
311460992815,10cyclictest345551-21/usr/sbin/munin08:45:130
31146099281,19cyclictest0-21swapper/012:25:250
31146599279,9cyclictest131rcu_preempt11:25:021
31146599272,15cyclictest0-21swapper/107:10:381
31146599271,15cyclictest0-21swapper/109:35:561
31146599270,16cyclictest0-21swapper/112:12:551
31146099279,15cyclictest332901-21munin-run08:10:010
31146099278,8cyclictest131rcu_preempt11:33:510
31146099277,17cyclictest0-21swapper/009:40:170
311460992719,5cyclictest326301-21apt-get07:50:100
311460992718,5cyclictest0-21swapper/012:35:250
311460992717,7cyclictest410531-21/usr/sbin/munin11:50:180
311460992717,7cyclictest388573-21cron10:48:010
311460992715,9cyclictest316209-21/usr/sbin/munin07:20:200
311460992715,10cyclictest382243-21cpuspeed10:30:140
311460992715,10cyclictest348897-21/usr/sbin/munin08:55:100
31146599269,7cyclictest131rcu_preempt12:28:491
311465992617,7cyclictest231ktimers/107:20:051
311465992617,6cyclictest376254-21cat10:10:241
31146599261,15cyclictest0-21swapper/110:32:361
311465992611,4cyclictest131rcu_preempt10:25:131
31146099262,12cyclictest11-21ksoftirqd/009:47:440
31146099262,12cyclictest11-21ksoftirqd/009:47:430
311460992616,7cyclictest361061-21/usr/sbin/munin09:30:120
311460992616,7cyclictest320872-21sshd07:34:150
311460992616,7cyclictest312182-21/usr/sbin/munin07:10:220
311460992615,8cyclictest328059-21/usr/sbin/munin07:55:140
311460992613,10cyclictest322258-21/usr/sbin/munin07:35:260
31146599254,7cyclictest0-21swapper/110:40:191
31146599254,11cyclictest0-21swapper/109:49:151
31146599254,11cyclictest0-21swapper/109:49:151
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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