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2026-09-03 - 01:48

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 792 highest latencies:
System rackbslot5s.osadl.org (updated Wed Sep 02, 2026 12:44:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4127182994637,7cyclictest391ktimers/312:05:133
4127182994333,6cyclictest4147984-21cat08:05:253
4127182994231,5cyclictest0-21swapper/308:18:393
4127170994231,8cyclictest4128345-21grep07:10:250
412718299411,17cyclictest40-21ksoftirqd/308:45:113
4127173994130,8cyclictest34956-21grep12:00:251
4127170994135,3cyclictest0-21swapper/007:20:000
4127173994032,4cyclictest0-21swapper/111:00:001
4127173994029,8cyclictest25190-21sh11:35:001
4127170994031,6cyclictest4145185-21munin-run08:00:010
4127182993933,4cyclictest4189974-21kworker/u8:2+events_unbound10:14:043
4127182993933,4cyclictest36831-21kworker/u8:0+events_unbound12:14:273
4127182993931,4cyclictest43964-21sh12:30:003
4127182993926,9cyclictest467-21grep10:20:253
4127182993829,5cyclictest42264-21cron12:25:003
4127182993829,4cyclictest0-21swapper/307:25:003
4127182993821,6cyclictest131rcu_preempt08:55:133
4127173993828,5cyclictest0-21swapper/110:34:071
4127182993730,4cyclictest645-21runrttasks12:30:133
4127182993730,4cyclictest645-21runrttasks12:30:123
4127178993725,9cyclictest311ktimers/211:55:132
4127173993730,4cyclictest4192779-21kworker/u8:1+events_unbound10:24:061
4127173993725,8cyclictest0-21swapper/109:20:001
4127182993630,4cyclictest4162610-21kworker/u8:3+events_unbound08:54:413
4127182993627,5cyclictest16254-21unixbench_singl11:05:243
4127182993626,5cyclictest0-21swapper/312:15:263
4127178993626,7cyclictest4133242-21fschecks_time07:25:162
4127173993628,5cyclictest4138151-21run-parts07:40:001
4127173993626,6cyclictest23489-21sh11:30:001
412717099361,32cyclictest0-21swapper/008:35:140
412717099361,32cyclictest0-21swapper/008:35:140
4127182993526,5cyclictest0-21swapper/311:20:013
4127182993526,5cyclictest0-21swapper/311:20:003
4127182993526,5cyclictest0-21swapper/309:15:243
4127182993523,7cyclictest4713-21apt-key10:35:003
4127178993527,4cyclictest4145044-21kworker/u8:1-events_power_efficient07:58:362
4127178993526,6cyclictest4136241-21munin-plugin-st07:35:002
4127178993526,4cyclictest0-21swapper/208:45:152
412717099353,5cyclictest131rcu_preempt07:25:130
4127170993526,5cyclictest4182305-21unixbench_singl09:45:270
4127170993526,4cyclictest0-21swapper/007:43:330
4127170993525,8cyclictest0-21swapper/011:25:120
4127170993525,7cyclictest6421-21sendmail10:40:000
4127170993524,8cyclictest0-21swapper/011:25:000
4127178993426,6cyclictest4184444-21kworker/u8:0+events_unbound10:19:052
4127178993426,4cyclictest0-21swapper/209:35:012
4127173993427,4cyclictest0-21swapper/112:25:211
4127173993424,7cyclictest4146895-21sh08:05:011
4127173993424,6cyclictest0-21swapper/108:50:241
4127170993426,4cyclictest0-21swapper/011:20:010
4127170993426,4cyclictest0-21swapper/011:20:000
4127182993323,7cyclictest4134519-21cron07:30:003
4127182993323,5cyclictest0-21swapper/309:13:493
4127182993320,7cyclictest0-21swapper/309:50:003
4127182993318,6cyclictest4172111-21kworker/u8:0+events_unbound09:21:163
4127178993325,4cyclictest0-21swapper/212:20:252
4127173993321,7cyclictest4166903-21grep09:00:261
412717099337,4cyclictest131rcu_preempt08:05:130
4127170993326,4cyclictest13254-21audit_send_reply11:00:000
4127170993325,4cyclictest0-21swapper/008:30:160
412718299327,8cyclictest40-21ksoftirqd/311:05:003
4127182993226,4cyclictest12999-21kworker/u8:2+events_unbound10:59:133
4127182993224,6cyclictest4135863-21kworker/u8:1+events_unbound07:41:443
4127182993224,4cyclictest0-21swapper/310:40:003
4127182993222,6cyclictest0-21swapper/311:30:003
4127182993222,6cyclictest0-21swapper/307:15:013
4127182993221,7cyclictest4141563-21sh07:50:013
4127182993220,7cyclictest0-21swapper/309:25:253
4127178993223,5cyclictest0-21swapper/212:15:172
4127178993222,7cyclictest4171530-21ntp_kernel_err09:15:192
4127173993225,4cyclictest0-21swapper/109:45:261
4127173993223,6cyclictest0-21swapper/109:40:001
4127173993222,7cyclictest4185005-21fschecks_count09:55:171
4127170993225,5cyclictest4180691-21kworker/u8:2+events_unbound09:58:590
4127170993225,3cyclictest0-21swapper/012:00:000
4127182993122,5cyclictest4158833-21munin-plugin-st08:40:003
4127182993122,5cyclictest4158833-21munin-plugin-st08:40:003
4127182993113,11cyclictest0-21swapper/311:54:023
4127182993113,10cyclictest131rcu_preempt12:35:133
4127182993113,10cyclictest131rcu_preempt12:35:133
4127182993112,7cyclictest131rcu_preempt11:10:123
412718299311,10cyclictest40-21ksoftirqd/311:30:123
4127178993123,4cyclictest0-21swapper/212:00:152
4127178993123,4cyclictest0-21swapper/210:20:252
4127178993120,6cyclictest0-21swapper/209:10:012
412717399313,5cyclictest131rcu_preempt08:40:121
4127173993121,6cyclictest4143889-21tune2fs07:55:161
412717099317,6cyclictest131rcu_preempt10:10:120
4127170993125,4cyclictest4180691-21kworker/u8:2+events_unbound10:04:000
4127170993125,3cyclictest4165651-21kthreadd09:00:010
4127170993124,4cyclictest47381-21apt-get12:40:000
4127170993124,4cyclictest47381-21apt-get12:40:000
4127170993124,3cyclictest0-21swapper/010:30:000
4127170993124,3cyclictest0-21swapper/008:20:000
412718299308,12cyclictest40-21ksoftirqd/311:35:223
412718299305,11cyclictest40-21ksoftirqd/307:15:253
412718299304,9cyclictest40-21ksoftirqd/310:05:003
4127182993021,4cyclictest0-21swapper/309:00:173
4127182993020,6cyclictest0-21swapper/308:00:023
4127178993024,3cyclictest0-21swapper/211:10:262
4127178993023,3cyclictest0-21swapper/209:50:002
4127178993022,4cyclictest0-21swapper/208:50:242
4127178993020,6cyclictest4172872-21fschecks_count09:20:162
4127173993022,5cyclictest0-21swapper/108:20:001
4127173993022,4cyclictest0-21swapper/110:39:091
4127170993024,3cyclictest4132828-21kthreadd07:25:000
4127170993023,3cyclictest0-21swapper/009:35:230
412718299292,4cyclictest41566862unixbench_singl08:30:263
4127182992921,4cyclictest0-21swapper/311:40:163
4127182992918,8cyclictest4180632-21users09:40:263
4127182992916,9cyclictest0-21swapper/310:20:013
4127182992910,12cyclictest145-21jbd2/mmcblk1p2-811:45:073
4127178992923,3cyclictest0-21swapper/207:40:262
4127178992922,3cyclictest0-21swapper/211:15:172
4127178992922,3cyclictest0-21swapper/211:15:172
4127178992919,6cyclictest0-21swapper/212:35:172
4127178992919,6cyclictest0-21swapper/212:35:162
4127173992921,4cyclictest0-21swapper/108:13:381
4127173992920,6cyclictest0-21swapper/107:55:011
412717099296,5cyclictest131rcu_preempt10:05:120
4127170992922,3cyclictest0-21swapper/007:35:190
4127170992921,4cyclictest0-21swapper/009:40:260
4127170992920,6cyclictest4145917-21missed_timers08:00:200
4127170992918,7cyclictest0-21swapper/009:00:260
4127170992916,7cyclictest131rcu_preempt08:25:180
412718299288,4cyclictest131rcu_preempt07:55:013
4127182992817,8cyclictest381rcuc/308:40:123
4127182992817,6cyclictest0-21swapper/308:20:253
4127182992814,3cyclictest131rcu_preempt11:20:223
4127182992812,4cyclictest131rcu_preempt10:50:123
4127178992820,5cyclictest0-21swapper/208:20:002
4127178992820,4cyclictest0-21swapper/207:20:262
4127178992819,5cyclictest0-21swapper/210:00:252
4127173992822,3cyclictest0-21swapper/107:35:011
4127173992821,3cyclictest0-21swapper/110:30:001
4127173992820,5cyclictest0-21swapper/108:55:261
4127173992819,6cyclictest0-21swapper/108:30:001
4127173992818,7cyclictest0-21swapper/112:20:251
4127173992817,7cyclictest4187592-21grep10:00:251
4127170992822,3cyclictest0-21swapper/012:05:250
4127170992820,5cyclictest4518-21munin-plugin-st10:35:000
4127170992820,4cyclictest0-21swapper/008:50:260
4127170992817,8cyclictest28617-21auditctl11:45:010
412718299279,11cyclictest0-21swapper/310:08:133
4127182992719,6cyclictest4184444-21kworker/u8:0+events_unbound09:54:473
4127182992719,5cyclictest4167142-21kworker/u8:2+events_unbound09:05:143
4127182992719,4cyclictest0-21swapper/311:55:153
4127182992711,5cyclictest131rcu_preempt10:45:243
4127178992720,4cyclictest0-21swapper/210:10:242
4127178992720,3cyclictest0-21swapper/209:40:212
4127178992719,6cyclictest4170360-21head09:10:252
4127178992718,6cyclictest4128812-21munin-plugin-st07:15:012
4127178992716,6cyclictest0-21swapper/208:23:402
4127173992721,3cyclictest0-21swapper/109:45:001
4127173992719,4cyclictest0-21swapper/112:15:261
4127170992722,3cyclictest13550irq/42-30be0000.ethernet09:30:210
4127170992721,3cyclictest0-21swapper/012:20:000
4127170992720,4cyclictest0-21swapper/010:15:260
412717099271,11cyclictest42256-21cron12:25:000
412718299267,10cyclictest40-21ksoftirqd/308:25:273
412718299266,5cyclictest131rcu_preempt10:30:013
4127182992617,6cyclictest4136737-21sort07:35:173
4127182992611,6cyclictest7794-21kworker/u8:0+events_unbound10:43:563
4127178992620,3cyclictest0-21swapper/212:25:112
4127178992619,5cyclictest32-21ksoftirqd/208:55:132
4127178992619,4cyclictest0-21swapper/208:25:172
4127178992616,7cyclictest37529-21fschecks_count12:10:152
4127173992619,5cyclictest40321-21kworker/u8:2+events_unbound12:39:291
4127173992619,5cyclictest40321-21kworker/u8:2+events_unbound12:39:291
4127173992619,4cyclictest4158410-21grep08:35:271
4127173992619,4cyclictest4158410-21grep08:35:271
4127173992619,4cyclictest0-21swapper/111:40:251
4127173992619,3cyclictest0-21swapper/107:10:261
4127173992616,7cyclictest4173996-21seq09:22:411
412717099262,4cyclictest4193552-21fschecks_count10:20:150
4127170992620,4cyclictest0-21swapper/009:10:120
4127170992615,7cyclictest0-21swapper/008:50:000
412718299257,5cyclictest131rcu_preempt12:00:233
4127182992519,4cyclictest4143102-21kworker/u8:0+events_unbound08:13:453
4127182992519,4cyclictest4135863-21kworker/u8:1+events_unbound07:34:133
4127182992517,6cyclictest4173896-21kworker/u8:1+events_unbound09:30:063
4127178992518,4cyclictest0-21swapper/212:30:262
4127178992518,4cyclictest0-21swapper/212:30:262
4127178992518,4cyclictest0-21swapper/210:35:252
4127178992517,5cyclictest0-21swapper/211:05:242
4127178992516,6cyclictest68-21kswapd007:35:132
4127178992516,6cyclictest4129823-21fschecks_time07:15:152
4127173992519,3cyclictest0-21swapper/112:00:001
4127173992517,4cyclictest0-21swapper/111:35:151
4127173992517,4cyclictest0-21swapper/110:15:261
4127173992516,6cyclictest0-21swapper/108:45:251
412717399251,21cyclictest4134307-21seq07:27:281
4127170992521,2cyclictest13550irq/42-30be0000.ethernet10:49:430
4127170992519,3cyclictest0-21swapper/012:00:150
4127170992519,3cyclictest0-21swapper/011:55:010
4127170992518,4cyclictest13850irq/36-mmc111:40:000
4127170992518,3cyclictest0-21swapper/010:51:260
4127170992516,6cyclictest43497-21unixbench_multi12:25:250
4127170992513,8cyclictest204-21dbus-daemon11:34:170
4127170992512,9cyclictest204-21dbus-daemon12:14:250
412717099251,21cyclictest4143263-21cron07:55:020
412717099251,20cyclictest0-21swapper/009:22:530
412718299246,11cyclictest0-21swapper/309:38:073
412718299245,5cyclictest131rcu_preempt08:05:013
412718299243,5cyclictest0-21swapper/309:59:143
4127178992418,3cyclictest0-21swapper/211:00:012
4127178992418,3cyclictest0-21swapper/210:35:002
4127178992417,3cyclictest0-21swapper/212:05:232
4127178992416,4cyclictest0-21swapper/209:25:252
412717399244,4cyclictest131rcu_preempt09:25:121
4127173992418,3cyclictest30322-21ls11:50:001
4127173992418,3cyclictest0-21swapper/109:10:241
4127173992418,3cyclictest0-21swapper/107:45:271
4127173992418,3cyclictest0-21swapper/107:15:161
4127173992416,5cyclictest0-21swapper/111:20:161
4127173992413,8cyclictest44340-21cut12:30:161
4127173992413,8cyclictest44340-21cut12:30:161
412717099245,14cyclictest13550irq/42-30be0000.ethernet07:45:140
4127170992418,4cyclictest12999-21kworker/u8:2+events_unbound11:14:120
4127170992418,4cyclictest12999-21kworker/u8:2+events_unbound11:04:120
4127170992417,5cyclictest0-21swapper/011:09:060
4127170992417,4cyclictest4153715-21cron08:25:000
4127170992416,5cyclictest4110605-1kworker/0:1H+mmc_complete07:35:010
4127170992416,4cyclictest0-21swapper/011:45:200
412717099241,19cyclictest0-21swapper/012:31:530
412717099241,19cyclictest0-21swapper/012:31:530
412717099241,19cyclictest0-21swapper/009:26:070
412717099241,19cyclictest0-21swapper/008:12:570
412717099241,15cyclictest0-21swapper/009:16:080
4127178992318,3cyclictest0-21swapper/211:45:222
4127178992317,3cyclictest0-21swapper/208:05:262
4127178992316,5cyclictest145-21jbd2/mmcblk1p2-811:38:062
4127178992316,4cyclictest0-21swapper/211:25:262
4127178992315,5cyclictest0-21swapper/210:50:262
4127178992315,4cyclictest0-21swapper/208:40:242
4127178992314,6cyclictest8541-21fschecks_count10:45:152
4127173992317,4cyclictest16481-21kworker/u8:0+events_unbound11:14:141
4127173992317,3cyclictest0-21swapper/109:50:181
4127173992316,5cyclictest231ktimers/110:09:021
4127173992315,5cyclictest231ktimers/112:10:181
4127173992314,7cyclictest7206-21ntpq10:40:201
4127173992311,4cyclictest4135863-21kworker/u8:1+events_unbound07:40:531
4127170992318,3cyclictest13550irq/42-30be0000.ethernet09:05:110
4127170992316,5cyclictest13550irq/42-30be0000.ethernet09:50:020
4127170992316,3cyclictest0-21swapper/008:42:000
412717099230,19cyclictest0-21swapper/010:44:370
4127178992216,4cyclictest0-21swapper/209:55:012
4127178992216,3cyclictest0-21swapper/211:30:152
4127178992214,5cyclictest0-21swapper/207:50:262
4127178992213,6cyclictest0-21swapper/209:35:242
4127178992212,7cyclictest4156214-21ntpq08:30:202
4127178992212,6cyclictest0-21swapper/211:00:162
4127173992216,3cyclictest41677202sleep109:05:161
412717399221,5cyclictest0-21swapper/111:00:151
4127173992215,3cyclictest0-21swapper/108:23:401
412717399221,11cyclictest0-21swapper/112:07:481
4127178992115,3cyclictest0-21swapper/211:55:012
4127178992115,3cyclictest0-21swapper/210:25:182
4127178992115,3cyclictest0-21swapper/209:00:182
4127173992115,4cyclictest4153374-21kworker/u8:3+events_unbound08:30:421
4127173992115,4cyclictest23276-21kworker/u8:0-events_freezable_power_11:54:391
4127173992115,3cyclictest0-21swapper/111:15:171
4127173992115,3cyclictest0-21swapper/111:15:171
4127173992114,4cyclictest16262-21head11:05:251
4127173992113,5cyclictest231ktimers/110:50:261
4127178992015,3cyclictest0-21swapper/207:45:222
4127178992014,3cyclictest0-21swapper/210:05:152
4127178992013,4cyclictest311ktimers/208:13:422
4127178992012,4cyclictest0-21swapper/208:35:182
4127178992012,4cyclictest0-21swapper/208:35:172
4127178992011,7cyclictest20544-21cut11:20:162
4127178992010,6cyclictest0-21swapper/210:40:152
4127173992013,5cyclictest231ktimers/109:30:141
4127178991912,4cyclictest23276-21kworker/u8:0+events_unbound11:45:002
412717399199,6cyclictest0-21swapper/110:10:241
4127178991812,4cyclictest4184868-21/usr/sbin/munin09:55:162
4127178991812,3cyclictest0-21swapper/208:05:012
4127173991811,5cyclictest231ktimers/110:45:111
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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