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2026-06-13 - 15:09

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 all highest latencies:
System rackbslot5s.osadl.org (updated Sat Jun 13, 2026 12:44:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2342923995347,4cyclictest2391536-21kworker/u8:0+events_unbound09:40:413
2342923995242,6cyclictest2434208-21grep11:30:253
2342923995242,6cyclictest2434208-21grep11:30:253
2342914995141,7cyclictest2367321-21munin-run08:20:011
2342914995035,11cyclictest231ktimers/111:50:091
2342923994841,5cyclictest2405416-21kworker/u8:1+events_unbound10:20:463
2342914994826,18cyclictest2451749-21sh12:25:001
2342923994741,4cyclictest2422426-21kworker/u8:0+events_unbound11:00:583
2342923994738,6cyclictest2360022-21grep07:55:253
2342918994637,5cyclictest2374146-21ls08:40:012
2342918994634,9cyclictest311ktimers/208:15:122
2342914994634,9cyclictest231ktimers/111:10:121
2342914994413,8cyclictest0-21swapper/111:30:191
2342914994413,8cyclictest0-21swapper/111:30:191
2342923994322,11cyclictest2446328-21kworker/u8:0-events_power_efficient12:19:393
2342918994332,8cyclictest311ktimers/211:35:132
2342918994332,8cyclictest311ktimers/211:35:132
234291499438,5cyclictest2411949-21sshd10:25:461
234291499431,12cyclictest2454726-21head12:30:261
2342923994236,4cyclictest2373875-21kworker/u8:1+events_unbound08:40:303
2342914994230,8cyclictest438-21cron10:50:011
2342914994218,20cyclictest0-21swapper/107:25:011
2342914994218,20cyclictest0-21swapper/107:25:001
2342914994215,24cyclictest0-21swapper/110:05:251
234291499421,12cyclictest2421435-21cut10:55:161
234291499421,10cyclictest2368564-21grep08:20:261
2342918994127,9cyclictest2344086-21grep07:10:262
2342918994127,9cyclictest2344086-21grep07:10:262
2342914994117,21cyclictest0-21swapper/108:05:251
2342914994113,8cyclictest0-21swapper/110:10:131
234291499411,12cyclictest2348794-21sshd07:25:051
2342909994133,5cyclictest2348110-21unixbench_multi07:20:270
2342909994133,5cyclictest2348110-21unixbench_multi07:20:270
2342923994033,4cyclictest2455165-21munin-plugin-st12:35:003
2342923994028,9cyclictest2363469-21grep08:05:243
2342923994023,5cyclictest131rcu_preempt09:25:023
234291499408,7cyclictest2372239-21seq08:32:421
2342914994032,5cyclictest2446635-21idleruntime-cro12:10:011
234291499402,13cyclictest2448339-21awk12:15:011
2342914994014,3cyclictest0-21swapper/108:25:231
234291499401,12cyclictest2359516-21grep07:55:191
234291499401,10cyclictest2362202-21cron08:05:001
2342909994034,4cyclictest2365490-21kworker/u8:1+events_unbound08:15:290
2342923993933,4cyclictest2437970-21kworker/u8:1+events_unbound11:51:053
2342923993921,4cyclictest131rcu_preempt07:24:593
2342923993921,4cyclictest131rcu_preempt07:24:583
234291499391,11cyclictest2426158-21cron11:10:001
234291499391,11cyclictest2407871-21grep10:15:181
234291499391,11cyclictest2344143-21unixbench_singl07:10:261
234291499391,11cyclictest2344143-21unixbench_singl07:10:251
2342909993929,4cyclictest2356805-21kworker/u8:1+events_unbound07:50:170
2342909993910,5cyclictest131rcu_preempt12:05:110
2342923993820,4cyclictest0-21swapper/311:19:563
2342923993817,5cyclictest2393294-21kworker/u8:1-events_power_efficient09:38:523
2342918993831,4cyclictest2429560-21cron11:20:012
2342909993826,9cyclictest121ktimers/010:20:120
2342923993731,4cyclictest2434408-21kworker/u8:2+events_unbound11:42:413
2342923993721,13cyclictest391ktimers/308:48:063
2342923993718,4cyclictest131rcu_preempt08:50:363
2342918993730,5cyclictest2360469-21kworker/u8:2+events_unbound08:50:322
2342914993711,5cyclictest231ktimers/108:50:131
234291499371,12cyclictest2420569-21unixbench_multi10:50:261
234291499371,11cyclictest2355381-21cron07:45:011
234291499370,12cyclictest2439382-21unixbench_singl11:45:261
2342909993730,4cyclictest2384811-21cut09:10:000
2342909993728,6cyclictest2451751-21cron12:25:010
2342909993728,6cyclictest2374130-21cron08:40:000
2342909993710,5cyclictest131rcu_preempt11:40:120
2342923993624,4cyclictest131rcu_preempt12:20:143
2342923993618,9cyclictest131rcu_preempt09:50:063
2342923993617,4cyclictest2384771-21kworker/u8:3-events_freezable_power_09:16:033
2342923993616,5cyclictest0-21swapper/310:10:473
2342923993613,5cyclictest131rcu_preempt12:00:183
2342918993628,4cyclictest0-21swapper/209:45:002
234291499369,4cyclictest0-21swapper/109:55:231
234291499361,8cyclictest2436417-21basename11:40:001
234291499361,8cyclictest2436417-21basename11:39:591
2342914993612,5cyclictest231ktimers/112:00:171
234291499361,11cyclictest2385627-21latency09:10:191
234291499361,10cyclictest2390141-21apt09:25:001
2342909993626,6cyclictest2408419-21unixbench_multi10:15:240
2342909993626,6cyclictest0-21swapper/009:00:320
2342923993529,4cyclictest2410580-21kworker/u8:3+events_unbound10:30:473
2342923993529,4cyclictest2360469-21kworker/u8:2+events_unbound08:25:303
2342923993524,4cyclictest131rcu_preempt10:29:363
2342923993520,4cyclictest131rcu_preempt10:40:323
2342923993519,4cyclictest131rcu_preempt11:24:063
2342923993517,5cyclictest131rcu_preempt08:10:133
2342923993517,10cyclictest131rcu_preempt10:04:163
2342923993517,10cyclictest131rcu_preempt10:04:163
2342918993528,3cyclictest0-21swapper/209:35:172
2342918993525,7cyclictest0-21swapper/210:55:002
2342918993525,6cyclictest629-21snmpd09:25:142
2342918993523,7cyclictest2356672-21grep07:45:262
234291499351,6cyclictest0-21swapper/111:20:111
2342914993512,5cyclictest231ktimers/109:45:131
2342909993527,4cyclictest2450050-21sh12:20:010
234292399347,8cyclictest40-21ksoftirqd/310:10:003
2342923993427,5cyclictest2408600-21kworker/u8:2+events_unbound10:52:403
2342923993422,4cyclictest131rcu_preempt07:53:153
2342923993421,7cyclictest2427628-21kworker/u8:0+events_unbound11:26:423
2342923993420,8cyclictest131rcu_preempt08:04:553
2342923993420,4cyclictest131rcu_preempt07:46:163
2342923993415,11cyclictest131rcu_preempt09:13:393
2342923993412,5cyclictest131rcu_preempt10:59:103
2342918993426,5cyclictest2437648-21unixbench_multi11:40:252
2342914993412,3cyclictest0-21swapper/108:10:181
234291499341,12cyclictest2400359-21cron09:55:001
234291499341,10cyclictest2453456-21latency_hist12:30:011
2342923993323,7cyclictest2415927-21munin-plugin-st10:40:013
2342923993316,9cyclictest131rcu_preempt08:30:163
2342923993316,4cyclictest131rcu_preempt07:41:353
2342923993315,5cyclictest131rcu_preempt09:08:593
2342923993315,11cyclictest131rcu_preempt09:30:143
2342923993313,4cyclictest131rcu_preempt07:33:033
2342923993312,12cyclictest40-21ksoftirqd/307:15:023
2342923993312,12cyclictest40-21ksoftirqd/307:15:013
2342923993310,14cyclictest40-21ksoftirqd/308:15:153
2342918993326,4cyclictest0-21swapper/211:05:262
2342918993322,7cyclictest2432512-21grep11:25:252
234291499338,7cyclictest2352730-21awk07:35:221
2342914993324,6cyclictest0-21swapper/109:40:011
234290999337,5cyclictest131rcu_preempt09:30:120
2342909993327,3cyclictest0-21swapper/010:40:010
2342909993323,7cyclictest2422748-21cron11:00:010
2342909993323,6cyclictest0-21swapper/007:45:010
2342909993319,7cyclictest2351749-21kworker/u8:0+events_unbound08:09:070
2342909993315,5cyclictest2424150-21kworker/u8:1+events_unbound11:03:410
234292399324,7cyclictest40-21ksoftirqd/309:00:123
2342923993225,5cyclictest2429378-21kworker/u8:1+events_unbound11:36:413
2342923993225,5cyclictest2429378-21kworker/u8:1+events_unbound11:36:403
2342923993224,4cyclictest0-21swapper/312:25:143
2342923993219,5cyclictest131rcu_preempt12:12:283
2342923993218,4cyclictest131rcu_preempt11:57:533
2342923993218,4cyclictest131rcu_preempt09:25:083
2342923993217,4cyclictest131rcu_preempt12:07:043
2342923993217,4cyclictest131rcu_preempt08:59:523
2342923993215,10cyclictest131rcu_preempt09:57:203
2342923993213,9cyclictest131rcu_preempt10:46:173
2342923993213,5cyclictest131rcu_preempt10:15:123
2342923993212,10cyclictest131rcu_preempt07:18:493
2342923993210,11cyclictest40-21ksoftirqd/309:45:163
2342918993224,4cyclictest0-21swapper/209:15:152
2342918993223,6cyclictest0-21swapper/210:35:162
2342918993221,7cyclictest2386297-21grep09:10:252
234291499329,6cyclictest2414760-21if_eth110:35:181
234291499328,6cyclictest2-21kthreadd11:45:001
2342914993212,3cyclictest0-21swapper/111:27:351
234290999326,4cyclictest131rcu_preempt10:05:130
2342909993225,5cyclictest2391536-21kworker/u8:0+events_unbound09:35:390
2342909993225,4cyclictest0-21swapper/009:20:260
2342909993224,4cyclictest0-21swapper/011:30:250
2342909993224,4cyclictest0-21swapper/011:30:250
2342923993123,4cyclictest0-21swapper/308:35:263
2342923993118,4cyclictest131rcu_preempt11:12:343
2342923993114,10cyclictest0-21swapper/311:47:113
2342923993113,4cyclictest131rcu_preempt07:28:003
234292399311,17cyclictest40-21ksoftirqd/312:35:223
2342918993126,3cyclictest2410580-21kworker/u8:3+events_unbound10:45:512
2342918993124,4cyclictest2384820-21idleruntime-cro09:10:012
2342918993123,6cyclictest2412579-21latency_hist10:30:012
2342918993123,4cyclictest0-21swapper/210:15:252
2342918993122,6cyclictest2444466-21grep12:00:262
2342918993122,5cyclictest2431299-21munin-plugin-st11:25:012
234290999319,3cyclictest131rcu_preempt10:35:000
2342909993124,4cyclictest2356631-21unixbench_multi07:45:270
2342909993122,6cyclictest0-21swapper/010:30:010
234292399309,12cyclictest40-21ksoftirqd/311:05:213
2342923993022,4cyclictest391ktimers/307:35:223
2342918993022,6cyclictest2356805-21kworker/u8:1+events_unbound07:56:552
2342918993022,5cyclictest2405416-21kworker/u8:1+events_unbound10:22:412
2342918993022,4cyclictest0-21swapper/210:05:252
2342914993023,4cyclictest0-21swapper/109:05:271
2342914993012,3cyclictest0-21swapper/110:30:211
2342909993023,3cyclictest2401265-21processes09:55:210
2342909993022,4cyclictest0-21swapper/012:00:010
2342909993022,4cyclictest0-21swapper/011:39:590
2342909993022,4cyclictest0-21swapper/011:39:590
2342909993012,5cyclictest131rcu_preempt11:25:130
2342918992923,3cyclictest2403778-21cron10:05:002
2342918992923,3cyclictest2403778-21cron10:04:592
2342918992922,3cyclictest0-21swapper/207:15:282
2342918992921,5cyclictest0-21swapper/212:00:012
2342914992922,3cyclictest0-21swapper/111:00:251
2342914992920,5cyclictest0-21swapper/109:15:251
2342914992917,8cyclictest2429105-21grep11:15:251
2342914992910,5cyclictest231ktimers/109:30:111
2342909992923,3cyclictest0-21swapper/009:15:250
2342909992919,6cyclictest0-21swapper/009:25:370
2342918992819,6cyclictest0-21swapper/209:00:012
2342914992818,7cyclictest2403373-21unixbench_singl10:00:271
2342914992818,7cyclictest2403373-21unixbench_singl10:00:271
2342914992810,4cyclictest231ktimers/111:55:101
234290999283,4cyclictest131rcu_preempt08:45:140
2342909992822,4cyclictest2417643-21auditctl10:45:010
2342909992822,4cyclictest2340869-21kworker/u8:1+events_unbound07:15:050
2342909992820,4cyclictest0-21swapper/009:50:160
2342909992819,6cyclictest2396542-21grep09:40:250
2342909992819,6cyclictest0-21swapper/007:40:010
2342909992819,5cyclictest0-21swapper/008:50:230
2342909992818,6cyclictest0-21swapper/007:10:170
2342909992818,6cyclictest0-21swapper/007:10:160
2342918992721,4cyclictest2449896-21kworker/u8:1+events_unbound12:21:102
2342909992721,4cyclictest11-21ksoftirqd/010:10:120
2342909992721,3cyclictest0-21swapper/011:55:000
2342909992718,4cyclictest0-21swapper/008:35:010
2342909992713,4cyclictest2408600-21kworker/u8:2+events_unbound11:13:500
2342909992712,5cyclictest2408600-21kworker/u8:2+events_unbound11:17:080
2342918992619,4cyclictest0-21swapper/210:40:272
2342918992619,4cyclictest0-21swapper/208:45:012
2342914992620,4cyclictest231ktimers/112:35:101
2342909992619,5cyclictest2437970-21kworker/u8:1+events_unbound12:10:210
2342909992616,6cyclictest0-21swapper/011:45:260
2342918992518,4cyclictest0-21swapper/212:30:252
2342918992518,4cyclictest0-21swapper/209:20:252
2342918992516,6cyclictest0-21swapper/209:00:162
2342914992514,8cyclictest2376075-21sed08:45:011
2342909992519,4cyclictest2360469-21kworker/u8:2+events_unbound08:25:330
2342909992518,3cyclictest0-21swapper/007:30:240
2342909992517,5cyclictest0-21swapper/008:05:000
2342909992516,6cyclictest0-21swapper/008:10:240
2342909992515,7cyclictest2452525-21ntpq12:25:200
2342909992515,3cyclictest11-21ksoftirqd/010:45:180
2342909992514,7cyclictest121ktimers/007:55:120
2342909992514,6cyclictest0-21swapper/008:55:310
234290999251,21cyclictest2455212-21latency_hist12:35:000
234290999251,11cyclictest2444748-21runrttasks12:02:530
2342909992510,8cyclictest2421212-21latency_hist10:55:010
2342918992417,3cyclictest0-21swapper/211:00:242
2342918992416,4cyclictest0-21swapper/209:50:162
2342918992416,4cyclictest0-21swapper/207:50:152
2342918992415,6cyclictest0-21swapper/212:39:592
2342918992414,7cyclictest2440530-21sed11:50:172
2342914992415,5cyclictest0-21swapper/110:40:261
2342914992410,3cyclictest0-21swapper/108:49:141
2342909992416,5cyclictest2375403-21unixbench_multi08:40:270
2342909992412,8cyclictest11-21ksoftirqd/010:00:190
2342909992412,8cyclictest11-21ksoftirqd/010:00:190
234290999241,19cyclictest0-21swapper/007:28:410
2342918992317,3cyclictest0-21swapper/208:25:252
2342918992317,3cyclictest0-21swapper/208:05:222
2342918992317,3cyclictest0-21swapper/207:30:012
2342918992316,5cyclictest2427628-21kworker/u8:0+events_unbound11:31:012
2342918992316,5cyclictest2427628-21kworker/u8:0+events_unbound11:31:002
2342918992316,4cyclictest0-21swapper/211:45:252
2342914992315,5cyclictest0-21swapper/108:40:001
2342914992315,4cyclictest0-21swapper/110:25:011
2342909992317,4cyclictest2391536-21kworker/u8:0+events_unbound09:45:190
234290999231,11cyclictest0-21swapper/012:39:100
2342909992310,7cyclictest131rcu_preempt09:10:180
2342918992216,4cyclictest2344155-21kworker/u8:3+events_unbound07:20:072
2342918992216,4cyclictest2344155-21kworker/u8:3+events_unbound07:20:072
2342918992216,3cyclictest0-21swapper/209:45:182
2342918992216,3cyclictest0-21swapper/208:20:232
2342918992216,3cyclictest0-21swapper/208:10:232
2342918992216,3cyclictest0-21swapper/207:30:172
2342918992215,4cyclictest0-21swapper/208:45:252
2342914992216,3cyclictest0-21swapper/107:45:131
2342914992214,4cyclictest2381841-21fschecks_time09:00:151
2342914992210,9cyclictest2350510-21apt-get07:30:121
2342909992214,6cyclictest11-21ksoftirqd/011:22:550
234290999220,4cyclictest2424696-21apt-get11:05:120
2342918992114,4cyclictest311ktimers/210:31:522
2342918992114,4cyclictest0-21swapper/212:15:262
234291899211,17cyclictest2371083-21diskstats08:30:152
2342918992110,8cyclictest2400593-21apt-get09:55:122
2342918992014,3cyclictest0-21swapper/209:30:252
2342918992013,4cyclictest2353665-21cron07:40:022
234291499202,14cyclictest2395656-21fschecks_count09:40:161
2342914992015,3cyclictest2345587-21fschecks_time07:15:171
2342914992014,4cyclictest2342903-21cyclictest08:55:021
234291899193,12cyclictest24212732sleep210:55:112
2342918991914,3cyclictest2452099-21sh12:25:142
2342918991914,3cyclictest2447077-21fschecks_time12:10:152
2342918991911,6cyclictest311ktimers/210:10:122
234291899191,15cyclictest2427150-21sensors_temp11:10:242
234291899191,14cyclictest53-21kcompactd012:05:162
2342914991911,5cyclictest0-21swapper/112:15:191
2342918991811,5cyclictest0-21swapper/207:40:252
2342914991810,6cyclictest231ktimers/109:27:031
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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