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2026-08-06 - 08:30

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 Aug 06, 2026 00:44:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2193322995848,6cyclictest2287657-21idleruntime-cro23:40:012
2193313995138,10cyclictest121ktimers/020:00:140
2193318994730,14cyclictest204-21dbus-daemon19:50:121
2193327994638,5cyclictest2289377-21munin-plugin-st23:45:013
2193322994618,9cyclictest131rcu_preempt21:25:142
2193318994536,6cyclictest2294908-21fschecks_time00:00:171
2193322994438,4cyclictest145-21jbd2/mmcblk1p2-821:40:322
2193327994336,4cyclictest2238623-21unixbench_singl21:15:273
2193322994336,4cyclictest2193307-21cyclictest21:55:352
2193318994320,20cyclictest2210900-21munin-run20:00:011
2193318994224,14cyclictest0-21swapper/122:55:011
219331899421,12cyclictest2241195-21apt-get21:25:061
2193327994133,6cyclictest2242674-21cron21:30:003
2193322994131,7cyclictest2266754-21apt22:40:012
2193318994133,5cyclictest2214537-21idleruntime-cro20:10:011
2193318994133,5cyclictest2214537-21idleruntime-cro20:10:011
2193318994116,21cyclictest0-21swapper/121:20:281
2193318994030,7cyclictest2259525-21unixbench_singl22:15:241
2193313994029,8cyclictest2259955-21sendmail22:20:010
2193327993931,5cyclictest0-21swapper/322:40:013
2193322993932,4cyclictest2244365-21cron21:35:012
219331899399,3cyclictest2253283-21fschecks_count22:00:171
219331899391,9cyclictest2198970-21cron19:25:011
219331899391,6cyclictest2238624-21sed21:15:261
2193318993912,24cyclictest0-21swapper/122:05:181
219331899391,12cyclictest2268580-21cat22:45:001
2193318993911,2cyclictest0-21swapper/122:27:341
219331899391,11cyclictest2266760-21munin-run22:40:011
219331899391,11cyclictest2205025-21wc19:40:281
219331899391,10cyclictest2301530-21lockfile-create00:19:591
219331899391,10cyclictest2287211-21sed23:35:261
219331899391,10cyclictest2282322-21cron23:25:001
219331899391,10cyclictest2244745-21cut21:35:161
2193318993910,7cyclictest2195085-21date19:15:001
2193318993910,3cyclictest645-21runrttasks22:59:261
2193313993924,11cyclictest121ktimers/019:15:150
2193313993924,11cyclictest121ktimers/019:15:140
2193322993826,8cyclictest2198518-21grep19:20:242
219331899389,7cyclictest2276236-21sed23:05:191
219331899389,5cyclictest0-21swapper/119:45:141
219331899388,4cyclictest0-21swapper/100:10:231
219331899387,6cyclictest2289005-21seq23:40:481
219331899381,9cyclictest2250775-21grep21:50:251
2193318993817,17cyclictest0-21swapper/121:35:011
2193318993813,22cyclictest0-21swapper/121:05:011
2193318993813,22cyclictest0-21swapper/120:00:131
2193318993812,6cyclictest231ktimers/100:05:241
219331899381,11cyclictest2226209-21grep20:40:261
219331899381,10cyclictest2294008-21grep23:55:241
219331899381,10cyclictest2252417-21sed21:55:291
2193313993827,7cyclictest0-21swapper/022:55:260
2193313993827,7cyclictest0-21swapper/019:55:260
2193327993726,7cyclictest2301025-21grep00:15:253
2193322993730,4cyclictest2195222-21munin-node19:15:012
2193318993730,4cyclictest2235639-21cron21:10:011
219331899371,8cyclictest2214945-21cut20:10:161
2193318993715,19cyclictest231ktimers/120:35:011
2193318993711,5cyclictest231ktimers/122:20:221
219331899371,11cyclictest2257603-21grep22:10:241
219331899371,11cyclictest2246534-21cut21:40:191
219331899371,10cyclictest2278166-21mailstats23:10:241
219331899371,10cyclictest2278166-21mailstats23:10:231
219331899371,10cyclictest2203595-21unixbench_multi19:35:241
2193318993710,2cyclictest0-21swapper/100:30:201
2193313993726,6cyclictest0-21swapper/000:25:230
219332299363,5cyclictest131rcu_preempt20:15:122
2193322993630,4cyclictest2239059-21sendmail21:20:012
2193322993628,4cyclictest0-21swapper/219:40:112
219331899365,7cyclictest2264764-21seq22:31:381
2193318993628,4cyclictest0-21swapper/120:55:181
219331899362,7cyclictest2274839-21unixbench_multi23:00:261
219331899361,12cyclictest2307878-21grep00:35:261
2193318993610,5cyclictest231ktimers/123:45:111
2193318993610,5cyclictest231ktimers/100:20:231
2193313993629,3cyclictest0-21swapper/023:25:000
2193313993629,3cyclictest0-21swapper/019:35:010
2193313993628,4cyclictest0-21swapper/021:15:010
2193327993527,4cyclictest0-21swapper/300:35:263
219332299354,6cyclictest131rcu_preempt22:10:122
219331899352,7cyclictest2292354-21head23:50:241
2193318993526,5cyclictest0-21swapper/120:20:251
2193318993512,5cyclictest231ktimers/123:15:111
219331899351,10cyclictest2196594-21grep19:15:271
219331899351,10cyclictest2196594-21grep19:15:261
219331899351,10cyclictest1-21systemd00:28:461
2193313993528,4cyclictest2301029-21grep00:15:250
2193313993526,6cyclictest0-21swapper/019:50:010
2193327993427,4cyclictest0-21swapper/321:00:243
2193322993422,7cyclictest0-21swapper/219:50:272
219331899349,4cyclictest645-21runrttasks22:48:461
219331899349,3cyclictest0-21swapper/120:50:101
2193318993411,5cyclictest231ktimers/121:45:171
2193318993410,5cyclictest231ktimers/119:30:241
2193313993427,4cyclictest2275289-21cron23:05:000
2193313993425,6cyclictest2288746-21timerandwakeup23:40:240
2193327993326,5cyclictest2269838-21kworker/u8:2+events_unbound23:20:523
2193327993326,4cyclictest0-21swapper/320:15:143
2193327993325,5cyclictest0-21swapper/321:10:013
2193327993325,5cyclictest0-21swapper/319:35:013
2193327993325,4cyclictest0-21swapper/323:50:013
2193327993325,4cyclictest0-21swapper/322:10:013
2193327993325,4cyclictest0-21swapper/300:25:243
2193327993323,6cyclictest0-21swapper/320:10:013
2193327993323,6cyclictest0-21swapper/320:10:003
2193327993322,7cyclictest164-21systemd-journal19:55:123
2193322993327,4cyclictest2252659-21kworker/u8:1+events_unbound22:00:362
2193322993326,4cyclictest0-21swapper/223:50:152
2193322993326,4cyclictest0-21swapper/222:50:242
2193322993323,7cyclictest2307890-21grep00:35:252
2193322993322,7cyclictest0-21swapper/221:55:012
219331899339,5cyclictest231ktimers/123:30:011
2193313993325,4cyclictest0-21swapper/022:10:010
2193313993324,5cyclictest0-21swapper/022:30:250
2193313993323,6cyclictest0-21swapper/020:55:020
2193313993323,6cyclictest0-21swapper/019:40:190
2193313993322,7cyclictest2254190-21grep22:00:260
2193313993316,13cyclictest0-21swapper/000:09:590
2193327993222,6cyclictest0-21swapper/321:55:013
2193322993225,3cyclictest0-21swapper/219:25:152
2193322993221,7cyclictest2214109-21grep20:05:292
2193322993221,7cyclictest2214109-21grep20:05:292
2193318993212,5cyclictest231ktimers/121:10:131
2193313993225,4cyclictest0-21swapper/020:10:010
2193313993225,4cyclictest0-21swapper/020:10:000
2193313993225,3cyclictest0-21swapper/022:40:010
2193313993224,4cyclictest2249500-21kthreadd21:50:010
2193313993224,4cyclictest0-21swapper/023:35:250
2193313993224,4cyclictest0-21swapper/019:10:260
2193313993222,6cyclictest0-21swapper/021:30:260
2193327993124,4cyclictest2224961-21cron20:40:003
219332799312,3cyclictest131rcu_preempt21:35:123
2193327993123,6cyclictest2267163-21fschecks_count22:40:153
2193327993123,4cyclictest0-21swapper/319:40:293
2193327993123,4cyclictest0-21swapper/319:40:013
2193327993122,6cyclictest2196828-21unixbench_singl19:15:293
2193327993122,6cyclictest2196828-21unixbench_singl19:15:283
2193327993122,5cyclictest0-21swapper/322:10:253
2193327993122,5cyclictest0-21swapper/320:10:163
2193322993125,4cyclictest2269838-21kworker/u8:2+events_unbound23:25:002
2193322993122,4cyclictest0-21swapper/220:30:162
2193322993122,4cyclictest0-21swapper/220:25:162
2193322993121,6cyclictest2229838-21grep20:50:252
219331899319,3cyclictest2220292-21fschecks_time20:25:161
2193318993120,7cyclictest0-21swapper/120:50:011
219331899311,9cyclictest2285940-21sh23:35:001
219331899311,10cyclictest2218172-21sendmail-msp20:20:011
2193327993023,3cyclictest0-21swapper/323:19:593
2193327993022,5cyclictest0-21swapper/320:05:013
2193327993022,4cyclictest0-21swapper/322:15:253
2193322993019,6cyclictest0-21swapper/219:35:242
2193313993022,4cyclictest0-21swapper/020:20:010
2193313993022,4cyclictest0-21swapper/019:50:280
2193313993022,3cyclictest0-21swapper/020:35:190
2193327992923,3cyclictest0-21swapper/320:50:253
2193327992917,8cyclictest2292306-21grep23:50:253
219332299291,9cyclictest2265043-21cron22:35:002
2193322992919,7cyclictest2299340-21grep00:10:222
2193322992917,9cyclictest2274821-21grep23:00:252
2193313992922,4cyclictest2270167-21cron22:50:000
2193313992921,5cyclictest2244794-21fschecks_time21:35:160
2193313992919,6cyclictest0-21swapper/019:20:250
2193327992821,5cyclictest2198588-21kworker/u8:1+events_unbound19:45:123
2193327992821,4cyclictest2272323-21fschecks_time22:55:163
2193327992821,4cyclictest2249499-21idleruntime-cro21:50:013
2193327992816,8cyclictest2208766-21grep19:50:283
2193322992821,5cyclictest2295961-21kworker/u8:2+events_unbound00:02:452
2193322992818,6cyclictest0-21swapper/221:40:002
2193318992820,5cyclictest231ktimers/119:25:121
2193318992817,8cyclictest2224982-21idleruntime-cro20:40:011
2193313992820,5cyclictest0-21swapper/021:00:240
2193313992819,6cyclictest0-21swapper/021:20:010
2193327992718,6cyclictest0-21swapper/322:00:003
2193327992718,5cyclictest0-21swapper/321:20:293
2193327992717,6cyclictest2232222-21cat21:00:013
2193327992715,4cyclictest2271558-21kworker/u8:1+events_unbound22:51:283
219332799271,4cyclictest131rcu_preempt20:25:133
219332299275,4cyclictest131rcu_preempt21:05:132
2193322992720,4cyclictest2209003-21kworker/u8:0+events_unbound19:55:202
2193322992719,5cyclictest2280619-21munin-plugin-st23:20:002
2193322992719,5cyclictest0-21swapper/221:10:152
2193322992719,4cyclictest0-21swapper/223:05:152
2193322992717,7cyclictest2294494-21sendmail00:00:002
2193322992715,9cyclictest2240332-21sshd21:20:292
219332299271,3cyclictest2211366-21apt-get20:00:122
2193313992721,4cyclictest2280236-21kworker/u8:0+events_unbound23:15:510
2193313992720,5cyclictest199-21systemd-network23:14:380
2193313992720,5cyclictest199-21systemd-network23:14:370
2193313992720,4cyclictest0-21swapper/000:34:590
2193313992719,5cyclictest0-21swapper/020:20:210
2193313992719,5cyclictest0-21swapper/000:40:000
2193313992719,4cyclictest0-21swapper/021:55:010
2193313992717,6cyclictest0-21swapper/023:05:250
2193313992717,6cyclictest0-21swapper/022:10:250
2193313992717,6cyclictest0-21swapper/021:25:260
2193327992619,3cyclictest0-21swapper/321:30:163
2193327992618,5cyclictest0-21swapper/322:20:253
2193327992618,5cyclictest0-21swapper/300:10:003
2193327992618,4cyclictest0-21swapper/319:15:013
2193327992617,4cyclictest0-21swapper/322:45:273
2193322992620,3cyclictest0-21swapper/220:15:002
2193322992619,4cyclictest0-21swapper/223:30:272
2193322992618,6cyclictest2227058-21fschecks_count20:45:152
2193322992618,4cyclictest0-21swapper/220:20:262
2193322992615,7cyclictest2306142-21grep00:30:272
219331399263,3cyclictest2231413-21ps20:55:240
2193313992617,5cyclictest0-21swapper/019:40:010
2193313992616,6cyclictest0-21swapper/021:25:000
2193327992518,5cyclictest0-21swapper/300:15:003
2193327992517,5cyclictest0-21swapper/322:25:223
2193327992517,5cyclictest0-21swapper/320:25:013
219332299257,5cyclictest131rcu_preempt20:40:112
2193322992519,3cyclictest0-21swapper/222:45:012
2193322992518,4cyclictest0-21swapper/220:35:252
2193322992515,6cyclictest0-21swapper/221:50:012
2193322992513,7cyclictest0-21swapper/221:00:252
2193313992521,2cyclictest13550irq/42-30be0000.ethernet23:45:190
2193313992518,5cyclictest2226237-21unixbench_multi20:40:260
2193313992517,5cyclictest0-21swapper/023:25:150
2193313992513,8cyclictest204-21dbus-daemon20:10:130
2193327992418,3cyclictest0-21swapper/323:00:203
2193327992418,3cyclictest0-21swapper/321:40:193
2193327992417,4cyclictest2302748-21unixbench_multi00:20:273
2193327992416,5cyclictest0-21swapper/323:10:263
2193327992416,5cyclictest0-21swapper/323:10:263
2193327992415,6cyclictest2199345-21fschecks_count19:25:163
2193327992415,6cyclictest1-21systemd00:03:303
219332799241,12cyclictest0-21swapper/320:40:213
2193322992419,2cyclictest0-21swapper/222:15:202
2193322992417,5cyclictest2261370-21kworker/u8:2+events_unbound22:26:232
2193322992417,4cyclictest2301023-21unixbench_multi00:15:252
2193322992416,5cyclictest0-21swapper/200:05:202
2193322992414,7cyclictest204-21dbus-daemon23:41:002
2193322992411,4cyclictest131rcu_preempt22:55:202
219331399242,17cyclictest2235627-21cron21:10:010
2193313992417,5cyclictest121ktimers/000:10:130
2193313992417,5cyclictest0-21swapper/020:50:010
2193313992417,3cyclictest0-21swapper/000:01:120
2193313992416,5cyclictest0-21swapper/022:55:000
2193313992414,8cyclictest2292012-21mailstats23:50:230
2193313992414,6cyclictest0-21swapper/020:25:270
2193313992414,6cyclictest0-21swapper/000:25:000
2193327992316,5cyclictest391ktimers/300:30:143
2193327992316,3cyclictest0-21swapper/320:30:233
2193327992315,4cyclictest0-21swapper/323:25:153
2193322992317,4cyclictest2278468-21kworker/u8:1+events_unbound23:10:512
2193322992317,4cyclictest2278468-21kworker/u8:1+events_unbound23:10:512
2193322992311,8cyclictest2255844-21grep22:05:242
2193313992317,3cyclictest0-21swapper/022:20:190
2193313992316,5cyclictest0-21swapper/020:34:500
2193313992314,5cyclictest0-21swapper/023:30:270
219331399230,19cyclictest0-21swapper/019:25:540
2193327992215,5cyclictest2263109-21kworker/u8:0+events_unbound22:32:373
2193327992214,5cyclictest0-21swapper/323:30:243
2193327992212,7cyclictest2275828-21awk23:05:133
2193322992216,4cyclictest145-21jbd2/mmcblk1p2-823:25:212
2193322992216,3cyclictest0-21swapper/222:25:012
2193322992214,5cyclictest0-21swapper/200:20:272
219331399221,19cyclictest0-21swapper/023:55:120
219331399221,19cyclictest0-21swapper/022:42:540
219331399220,18cyclictest0-21swapper/022:26:010
2193327992115,3cyclictest0-21swapper/323:55:253
2193327992114,4cyclictest2287651-21sendmail23:40:003
2193327992114,4cyclictest0-21swapper/322:00:143
2193322992115,3cyclictest0-21swapper/220:55:252
2193313992111,6cyclictest0-21swapper/021:40:280
2193327992013,5cyclictest391ktimers/319:20:113
219332299209,8cyclictest2195317-21wc19:15:032
219332299209,8cyclictest2195317-21wc19:15:032
219332299209,8cyclictest204-21dbus-daemon23:48:152
219332299201,5cyclictest131rcu_preempt00:25:112
2193322992012,5cyclictest0-21swapper/219:45:112
2193327991911,4cyclictest0-21swapper/321:10:263
2193322991811,5cyclictest311ktimers/222:45:132
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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