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2026-03-12 - 23:44

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 Mar 12, 2026 12:44:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2258705995243,6cyclictest2261008-21fschecks_count07:15:040
2258719994740,5cyclictest2262446-21kworker/u8:1+events_unbound07:50:243
2258719994634,9cyclictest391ktimers/312:30:123
2258719994634,9cyclictest391ktimers/312:30:123
2258710994535,7cyclictest2367268-21grep12:20:251
2258714994437,4cyclictest2283540-21sendmail08:20:012
2258714994437,4cyclictest2283540-21sendmail08:20:012
2258705994435,4cyclictest0-21swapper/009:00:010
2258719994336,4cyclictest2322970-21cron10:15:003
2258710994336,4cyclictest2276501-21munin-plugin-st08:00:011
2258714994232,7cyclictest2284782-21grep08:20:262
2258710994234,6cyclictest2262446-21kworker/u8:1+events_unbound08:20:311
2258710994233,4cyclictest0-21swapper/109:15:401
2258710994232,5cyclictest0-21swapper/110:15:011
2258710994228,10cyclictest2297203-21sendmail09:00:011
2258719994134,4cyclictest2297197-21sendmail09:00:003
2258710994135,4cyclictest2262446-21kworker/u8:1+events_unbound08:05:291
2258719994033,5cyclictest2290061-21kworker/u8:3+events_unbound09:20:423
2258719994029,7cyclictest0-21swapper/307:15:013
2258710994028,8cyclictest2324207-21grep10:15:241
2258719993931,5cyclictest22786542sleep308:05:113
2258714993932,4cyclictest2348986-21munin-plugin-st11:30:012
2258714993932,4cyclictest0-21swapper/208:50:012
2258719993831,4cyclictest2276511-21sendmail08:00:003
2258719993830,4cyclictest0-21swapper/311:05:003
2258710993829,5cyclictest2266280-21idleruntime-cro07:30:011
2258710993823,5cyclictest2263193-21kworker/u8:4+events_unbound07:51:421
2258710993730,5cyclictest2350396-21kworker/u8:3+events_unbound11:36:051
2258710993730,5cyclictest2262446-21kworker/u8:1+events_unbound09:35:451
2258710993714,6cyclictest131rcu_preempt07:30:121
2258705993729,4cyclictest0-21swapper/010:30:020
2258705993727,7cyclictest2286548-21grep08:25:270
225871999362,8cyclictest22804982uniq08:10:153
225871999362,8cyclictest22804982uniq08:10:153
2258719993626,7cyclictest2338738-21auditctl11:00:003
2258705993628,6cyclictest2352163-21kworker/u8:2+events_unbound12:06:060
2258705993628,3cyclictest0-21swapper/008:45:170
2258719993526,6cyclictest2292470-21fschecks_count08:45:183
2258719993524,7cyclictest2366039-21sendmail12:20:003
2258719993523,9cyclictest391ktimers/311:25:133
2258714993527,4cyclictest0-21swapper/212:10:242
2258705993526,6cyclictest0-21swapper/012:35:010
2258705993526,6cyclictest0-21swapper/012:35:010
2258714993426,4cyclictest0-21swapper/207:40:002
2258714993424,6cyclictest2365551-21grep12:15:242
2258714993423,7cyclictest0-21swapper/208:40:002
2258710993423,7cyclictest2334919-21grep10:45:271
2258705993427,4cyclictest0-21swapper/008:05:000
2258705993426,5cyclictest2316153-21cron09:55:000
2258719993325,4cyclictest0-21swapper/309:10:263
2258719993324,6cyclictest2288651-21sh08:35:013
2258719993324,5cyclictest0-21swapper/307:20:013
2258719993324,4cyclictest0-21swapper/309:40:463
2258714993326,3cyclictest0-21swapper/211:00:142
2258714993323,8cyclictest2331911-21cron10:40:002
2258714993323,7cyclictest2343852-21cron11:15:002
2258710993324,5cyclictest0-21swapper/107:35:251
2258710993323,6cyclictest0-21swapper/109:10:251
2258710993322,7cyclictest2362201-21grep12:05:251
2258705993322,6cyclictest0-21swapper/010:15:240
2258719993224,6cyclictest2319208-21kworker/u8:1+events_unbound10:00:513
2258719993224,4cyclictest0-21swapper/311:10:143
2258719993224,4cyclictest0-21swapper/307:45:203
2258719993223,6cyclictest0-21swapper/312:00:003
2258719993222,6cyclictest0-21swapper/312:29:593
2258719993222,6cyclictest0-21swapper/312:29:593
2258719993222,6cyclictest0-21swapper/312:00:133
2258719993218,9cyclictest1-21systemd07:35:183
2258719993214,5cyclictest2286114-21proc_pri08:25:243
2258714993224,4cyclictest0-21swapper/211:45:232
2258714993224,4cyclictest0-21swapper/208:40:262
2258714993222,7cyclictest2346021-21fschecks_time11:20:152
2258714993221,8cyclictest2338749-21idleruntime-cro11:00:002
2258710993224,5cyclictest2373057-21munin-run12:40:001
2258710993222,6cyclictest0-21swapper/107:45:241
2258710993221,8cyclictest2360481-21grep12:00:241
2258710993220,7cyclictest0-21swapper/108:45:261
2258710993213,11cyclictest24-21ksoftirqd/111:40:251
2258710993212,12cyclictest2328742-21kworker/u8:1-events_power_efficient11:17:571
2258705993223,6cyclictest2348985-21munin-plugin-st11:30:000
2258719993123,4cyclictest0-21swapper/311:05:253
2258719993122,5cyclictest0-21swapper/308:20:013
2258719993122,5cyclictest0-21swapper/308:20:003
2258719993121,6cyclictest0-21swapper/312:10:163
2258714993123,4cyclictest0-21swapper/212:09:592
2258710993123,4cyclictest0-21swapper/110:45:001
2258710993123,4cyclictest0-21swapper/110:45:001
2258705993123,5cyclictest2324329-21kworker/u8:3+events_unbound10:40:560
2258705993123,5cyclictest2324329-21kworker/u8:3+events_unbound10:40:550
2258705993123,5cyclictest1-21systemd07:35:180
2258705993123,4cyclictest0-21swapper/011:50:240
2258719993023,4cyclictest0-21swapper/309:20:013
2258719993022,4cyclictest0-21swapper/309:00:253
2258719993021,5cyclictest0-21swapper/309:54:593
2258719993020,6cyclictest0-21swapper/310:35:243
2258714993023,4cyclictest2308075-21fschecks_time09:30:142
2258714993021,5cyclictest0-21swapper/210:15:142
2258714993020,7cyclictest0-21swapper/209:59:592
2258714993019,8cyclictest311ktimers/207:55:122
225871099309,8cyclictest131rcu_preempt08:10:101
225871099309,8cyclictest131rcu_preempt08:10:101
2258710993024,3cyclictest0-21swapper/109:25:011
2258710993023,4cyclictest0-21swapper/112:15:241
2258710993022,4cyclictest0-21swapper/108:30:331
2258710993021,5cyclictest2309349-21munin-plugin-st09:35:011
2258710993021,5cyclictest0-21swapper/110:54:591
2258710993010,12cyclictest24-21ksoftirqd/110:25:211
2258705993023,3cyclictest0-21swapper/011:45:010
2258705993021,6cyclictest2365553-21unixbench_multi12:15:250
2258705993019,7cyclictest2265877-21grep07:25:250
2258714992922,3cyclictest0-21swapper/211:40:242
2258714992921,5cyclictest2356216-21grep11:50:152
2258714992920,6cyclictest2318853-21cut10:00:232
225871099298,12cyclictest24-21ksoftirqd/110:35:101
2258710992920,6cyclictest231ktimers/109:40:121
2258710992920,4cyclictest0-21swapper/109:05:231
225871099291,8cyclictest0-21swapper/112:10:111
2258710992911,7cyclictest24-21ksoftirqd/108:15:251
2258710992911,7cyclictest24-21ksoftirqd/108:15:251
2258710992911,4cyclictest131rcu_preempt08:40:011
2258705992922,4cyclictest0-21swapper/008:00:000
2258705992921,5cyclictest2291673-21grep08:40:260
2258705992919,6cyclictest0-21swapper/007:45:250
2258705992913,14cyclictest645-21runrttasks11:10:180
2258719992822,4cyclictest2272904-21kworker/u8:2+events_unbound08:00:263
2258719992818,5cyclictest0-21swapper/310:45:173
2258714992821,4cyclictest2262446-21kworker/u8:1+events_unbound08:30:332
2258714992820,4cyclictest0-21swapper/209:20:012
2258714992820,4cyclictest0-21swapper/207:50:162
2258714992819,7cyclictest2278437-21cut08:05:012
2258714992817,7cyclictest2272701-21head07:45:252
225871099289,10cyclictest0-21swapper/107:22:461
225871099287,12cyclictest24-21ksoftirqd/111:55:181
225871099287,12cyclictest0-21swapper/110:01:481
2258710992822,4cyclictest2295278-21kworker/u8:2+events_unbound08:54:441
2258710992818,6cyclictest0-21swapper/109:50:251
2258710992817,8cyclictest2317432-21grep09:55:251
2258710992812,6cyclictest24-21ksoftirqd/108:40:201
2258710992810,7cyclictest24-21ksoftirqd/109:00:211
2258705992820,4cyclictest0-21swapper/007:20:260
2258719992721,4cyclictest2307320-21kworker/u8:2+events_unbound10:30:543
2258719992720,5cyclictest2331595-21kworker/u8:0+events_unbound12:05:553
2258719992717,6cyclictest0-21swapper/311:35:243
2258719992716,8cyclictest2317345-21sed09:55:253
2258719992716,7cyclictest0-21swapper/310:50:263
2258714992721,3cyclictest0-21swapper/212:20:262
2258714992720,4cyclictest311ktimers/210:08:292
2258714992719,4cyclictest0-21swapper/211:55:172
2258714992719,4cyclictest0-21swapper/207:30:172
2258714992717,6cyclictest0-21swapper/212:34:592
2258714992717,6cyclictest0-21swapper/212:34:592
2258714992716,7cyclictest2351141-21tune2fs11:35:152
2258714992715,8cyclictest0-21swapper/209:35:442
225871099278,3cyclictest131rcu_preempt11:20:231
225871099274,8cyclictest0-21swapper/108:00:111
2258710992719,5cyclictest2341743-21grep11:05:261
2258705992720,5cyclictest2295278-21kworker/u8:2+events_unbound08:54:410
2258705992718,6cyclictest2312301-21grep09:40:240
2258705992714,10cyclictest121ktimers/007:10:120
225871999266,7cyclictest2264332-21taskset07:22:103
225871999264,8cyclictest40-21ksoftirqd/311:20:163
2258719992619,4cyclictest0-21swapper/309:45:203
2258719992619,4cyclictest0-21swapper/309:45:203
2258719992619,3cyclictest0-21swapper/309:40:013
2258719992618,4cyclictest0-21swapper/309:05:243
2258719992616,6cyclictest2308880-21grep09:30:243
2258719992616,6cyclictest0-21swapper/308:50:253
2258719992615,7cyclictest0-21swapper/311:30:243
2258714992619,4cyclictest0-21swapper/208:05:252
2258714992618,4cyclictest0-21swapper/207:20:192
2258714992617,6cyclictest0-21swapper/210:45:252
225871099268,10cyclictest24-21ksoftirqd/111:50:241
225871099267,12cyclictest24-21ksoftirqd/107:15:221
225871099266,10cyclictest0-21swapper/111:02:031
225871099265,8cyclictest131rcu_preempt11:00:001
2258710992620,4cyclictest2307320-21kworker/u8:2+events_unbound09:28:411
2258710992619,5cyclictest2307320-21kworker/u8:2+events_unbound10:30:021
2258710992619,4cyclictest0-21swapper/107:15:011
2258710992616,6cyclictest2314038-21grep09:45:261
2258710992616,6cyclictest2314038-21grep09:45:251
2258710992616,6cyclictest2270970-21grep07:40:241
225870599266,16cyclictest2360496-21unixbench_singl12:00:230
2258705992618,5cyclictest13850irq/36-mmc110:50:000
2258705992618,5cyclictest0-21swapper/008:30:140
225870599261,22cyclictest2344949-21timerandwakeup11:15:240
225871999257,4cyclictest131rcu_preempt10:20:003
2258719992518,5cyclictest2290061-21kworker/u8:3+events_unbound08:41:163
2258719992518,4cyclictest391ktimers/311:40:153
2258719992518,4cyclictest0-21swapper/310:20:163
2258719992512,6cyclictest40-21ksoftirqd/309:25:133
225871999251,12cyclictest0-21swapper/311:50:183
225871499251,9cyclictest2270573-21processes07:40:212
2258714992519,3cyclictest0-21swapper/210:10:222
2258714992519,3cyclictest0-21swapper/208:50:162
2258714992519,3cyclictest0-21swapper/207:25:182
2258714992518,4cyclictest0-21swapper/209:00:012
2258714992518,3cyclictest0-21swapper/212:25:222
2258714992518,3cyclictest0-21swapper/212:25:212
2258714992516,6cyclictest311ktimers/212:35:042
225871099259,3cyclictest131rcu_preempt11:10:131
225871099257,9cyclictest131rcu_preempt10:07:551
225871099257,11cyclictest0-21swapper/111:31:131
225871099256,12cyclictest24-21ksoftirqd/110:20:161
225871099256,12cyclictest131rcu_preempt12:25:141
225871099256,12cyclictest131rcu_preempt12:25:141
2258705992519,3cyclictest13550irq/42-30be0000.ethernet08:20:000
2258705992519,3cyclictest13550irq/42-30be0000.ethernet08:20:000
2258705992518,5cyclictest2316031-21kworker/u8:0+events_unbound09:55:550
2258705992518,4cyclictest13550irq/42-30be0000.ethernet10:05:200
2258719992419,2cyclictest0-21swapper/310:25:123
2258714992418,3cyclictest0-21swapper/209:45:232
2258714992418,3cyclictest0-21swapper/209:45:232
2258714992418,3cyclictest0-21swapper/207:15:032
2258714992417,4cyclictest2305503-21unixbench_singl09:20:252
2258714992417,4cyclictest2302500-21cron09:15:002
2258714992417,4cyclictest0-21swapper/210:20:252
2258714992414,7cyclictest2329279-21ntpq10:30:202
2258714992414,7cyclictest2316227-21cat09:55:002
225870599243,4cyclictest0-21swapper/010:35:230
225870599242,19cyclictest2347060-21taskset11:22:240
225870599241,9cyclictest2280764-21wc08:10:180
225870599241,9cyclictest2280764-21wc08:10:180
2258705992418,3cyclictest0-21swapper/009:05:220
2258705992417,4cyclictest2308079-21fschecks_time09:30:150
2258705992417,3cyclictest0-21swapper/009:28:500
2258705992414,7cyclictest2302895-21tune2fs09:15:140
225870599241,3cyclictest2309569-21apt-get09:35:120
225870599241,21cyclictest0-21swapper/010:04:440
225870599241,19cyclictest0-21swapper/010:14:480
2258719992317,4cyclictest2337788-21kworker/u8:2+events_unbound11:18:303
2258719992317,3cyclictest0-21swapper/307:30:183
2258719992312,7cyclictest0-21swapper/308:35:263
225871999231,12cyclictest0-21swapper/310:07:063
2258714992317,3cyclictest0-21swapper/210:30:012
2258714992317,3cyclictest0-21swapper/209:25:192
2258714992317,3cyclictest0-21swapper/208:25:182
2258714992316,5cyclictest0-21swapper/208:15:002
2258714992316,5cyclictest0-21swapper/208:15:002
2258714992315,5cyclictest0-21swapper/209:10:002
2258714992313,7cyclictest2333847-21date10:45:002
2258705992317,3cyclictest0-21swapper/011:45:230
2258705992317,2cyclictest0-21swapper/007:40:160
2258705992316,3cyclictest0-21swapper/008:24:070
225870599231,20cyclictest0-21swapper/010:57:530
225870599231,20cyclictest0-21swapper/007:30:190
225870599231,18cyclictest0-21swapper/010:54:240
225870599230,2cyclictest0-21swapper/011:05:530
2258719992216,3cyclictest0-21swapper/311:45:243
2258719992216,3cyclictest0-21swapper/310:45:003
2258719992216,3cyclictest0-21swapper/310:45:003
2258719992215,5cyclictest2262446-21kworker/u8:1+events_unbound07:44:493
2258719992214,6cyclictest2283342-21kworker/u8:0+events_unbound08:20:243
2258714992217,2cyclictest0-21swapper/210:55:002
2258714992216,3cyclictest0-21swapper/212:00:242
2258714992215,4cyclictest0-21swapper/207:15:002
2258714992212,7cyclictest2341420-21which11:05:242
225870599223,2cyclictest0-21swapper/011:30:190
225870599223,13cyclictest13550irq/42-30be0000.ethernet12:20:120
2258705992217,3cyclictest0-21swapper/010:30:110
2258705992217,3cyclictest0-21swapper/009:12:220
2258705992217,3cyclictest0-21swapper/009:01:550
2258705992215,5cyclictest0-21swapper/011:55:250
2258705992215,3cyclictest0-21swapper/012:12:010
225870599221,3cyclictest0-21swapper/009:24:340
225870599221,19cyclictest0-21swapper/012:27:540
225870599221,19cyclictest0-21swapper/012:27:540
225870599221,19cyclictest0-21swapper/011:02:470
225870599221,19cyclictest0-21swapper/010:23:180
225870599221,18cyclictest2352413-21sendmail-msp11:40:000
225871999213,5cyclictest131rcu_preempt07:25:133
2258719992115,3cyclictest0-21swapper/312:20:203
225871499211,10cyclictest2297625-21apt-get09:00:062
2258705992116,3cyclictest0-21swapper/009:47:550
2258705992116,3cyclictest0-21swapper/009:47:550
2258705992112,5cyclictest0-21swapper/008:05:170
225870599210,19cyclictest0-21swapper/007:53:130
225871999200,11cyclictest0-21swapper/312:37:383
225871499209,8cyclictest2332618-21memory10:40:182
2258714992014,3cyclictest0-21swapper/211:30:162
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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