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2026-06-11 - 22:10

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 Thu Jun 11, 2026 12:44:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1193512994943,4cyclictest1254072-21kworker/u8:1+events_unbound10:10:450
1193524994834,10cyclictest391ktimers/309:25:123
1193512994840,4cyclictest1276568-21munin-plugin-st11:10:000
1193512994840,4cyclictest1276568-21munin-plugin-st11:10:000
1193512994632,5cyclictest1283273-21kworker/u8:1+events_unbound11:40:560
1193524994534,8cyclictest391ktimers/309:35:123
1193516994535,7cyclictest1276566-21munin-plugin-st11:10:011
1193516994535,7cyclictest1276566-21munin-plugin-st11:10:001
1193512994534,8cyclictest1232001-21apt-key09:00:010
1193512994433,7cyclictest1212400-21grep08:00:260
1193524994336,5cyclictest1212678-21kworker/u8:0+events_unbound08:15:253
1193521994336,4cyclictest1300645-21munin-plugin-st12:19:592
1193521994334,5cyclictest1-21systemd08:00:162
1193521994233,6cyclictest1221085-21unixbench_multi08:25:252
1193512994236,4cyclictest1178662-21kworker/u8:1+events_unbound07:10:020
1193516994132,4cyclictest0-21swapper/111:55:571
1193512994135,4cyclictest1257508-21kworker/u8:3+events_unbound10:20:450
1193524994029,4cyclictest1214448-21kworker/u8:1+events_unbound08:10:213
1193524994029,4cyclictest1214448-21kworker/u8:1+events_unbound08:10:213
1193521994021,10cyclictest1250580-21kworker/u8:0+events_unbound10:45:132
1193512994022,4cyclictest131rcu_preempt12:10:000
1193524993930,6cyclictest1231767-21cron09:00:003
1193524993925,10cyclictest391ktimers/308:25:123
1193521993930,6cyclictest1216214-21auditctl08:15:012
1193521993930,6cyclictest1216214-21auditctl08:15:002
1193521993928,7cyclictest0-21swapper/210:30:242
119351299398,24cyclictest11-21ksoftirqd/010:05:010
1193512993932,5cyclictest1283273-21kworker/u8:1+events_unbound11:35:560
1193512993921,5cyclictest131rcu_preempt07:50:010
1193521993828,7cyclictest1271434-21auditctl10:55:002
1193521993828,6cyclictest0-21swapper/212:30:262
1193521993827,7cyclictest1304067-21grep12:30:002
1193516993829,5cyclictest1210635-21unixbench_multi07:55:251
1193516993828,6cyclictest0-21swapper/110:40:011
1193512993831,4cyclictest1266322-21sendmail10:40:000
1193524993729,4cyclictest0-21swapper/308:05:193
1193524993729,4cyclictest0-21swapper/308:05:193
1193524993729,4cyclictest0-21swapper/308:00:163
1193521993731,4cyclictest1250580-21kworker/u8:0+events_unbound09:54:422
1193512993731,4cyclictest1220634-21kworker/u8:1+events_unbound08:40:310
1193524993626,6cyclictest0-21swapper/311:50:243
1193524993625,7cyclictest1233226-21grep09:00:273
1193521993628,5cyclictest1288069-21unixbench_singl11:40:242
1193521993627,5cyclictest0-21swapper/210:25:252
1193521993625,7cyclictest1291128-21missed_timers11:50:192
1193521993618,5cyclictest1285013-21kworker/u8:2+events_unbound11:46:232
1193516993627,5cyclictest0-21swapper/107:15:031
1193512993629,5cyclictest1178662-21kworker/u8:1+events_unbound07:20:050
1193512993628,6cyclictest1233356-21kworker/u8:1+events_unbound09:02:420
1193512993622,5cyclictest131rcu_preempt09:10:070
1193512993619,9cyclictest131rcu_preempt10:58:060
1193512993613,13cyclictest1231427-1kworker/0:1H+kblockd11:20:000
1193521993528,3cyclictest0-21swapper/210:10:152
1193521993527,4cyclictest0-21swapper/211:05:002
1193521993517,4cyclictest131rcu_preempt11:55:102
1193516993528,4cyclictest1195143-21auditctl07:15:011
1193516993527,4cyclictest0-21swapper/107:30:011
1193516993524,7cyclictest0-21swapper/108:55:251
1193512993527,6cyclictest1212678-21kworker/u8:0+events_unbound08:06:410
1193512993527,6cyclictest1212678-21kworker/u8:0+events_unbound08:06:410
1193512993519,5cyclictest131rcu_preempt11:20:240
1193512993518,5cyclictest131rcu_preempt08:35:130
1193512993515,10cyclictest131rcu_preempt10:30:010
1193512993513,5cyclictest131rcu_preempt07:25:240
1193524993427,4cyclictest1297235-21apt12:10:003
1193524993422,7cyclictest0-21swapper/312:00:003
1193521993425,6cyclictest1204086-21kworker/u8:0+events_unbound07:38:412
1193521993425,6cyclictest0-21swapper/208:55:252
1193521993425,5cyclictest0-21swapper/210:25:002
1193521993419,5cyclictest1242103-21kworker/u8:1+events_unbound09:32:022
1193516993426,4cyclictest0-21swapper/109:00:271
1193516993425,4cyclictest0-21swapper/111:00:271
1193512993428,4cyclictest1291901-21kworker/u8:2+events_unbound12:00:580
1193512993428,4cyclictest1291901-21kworker/u8:2+events_unbound12:00:580
1193512993418,3cyclictest131rcu_preempt12:15:000
1193512993416,6cyclictest131rcu_preempt11:10:230
1193512993416,4cyclictest131rcu_preempt07:30:150
1193524993326,4cyclictest0-21swapper/308:25:003
1193524993325,4cyclictest0-21swapper/309:55:143
119352199333,4cyclictest131rcu_preempt12:10:132
1193521993325,4cyclictest0-21swapper/209:10:252
1193521993325,4cyclictest0-21swapper/208:10:002
1193521993325,4cyclictest0-21swapper/208:10:002
1193521993323,6cyclictest0-21swapper/209:20:242
1193516993321,8cyclictest1240060-21grep09:20:241
119351299336,3cyclictest131rcu_preempt12:35:190
1193512993323,6cyclictest0-21swapper/009:25:370
1193524993223,7cyclictest1237333-21kworker/u8:1+events_unbound09:20:383
119352199329,3cyclictest131rcu_preempt07:20:112
1193521993226,3cyclictest1286801-21sendmail11:40:002
1193521993223,4cyclictest0-21swapper/208:15:262
119352199321,10cyclictest1195229-21cp07:15:012
1193512993225,4cyclictest1293818-21kthreadd12:00:000
1193512993216,5cyclictest131rcu_preempt12:25:230
1193512993216,5cyclictest131rcu_preempt10:20:010
1193512993211,11cyclictest0-21swapper/010:05:020
119351299320,16cyclictest438-21cron09:40:000
1193524993124,3cyclictest0-21swapper/310:45:243
1193524993123,5cyclictest1278628-21fschecks_count11:15:153
1193524993123,4cyclictest0-21swapper/310:00:263
1193524993123,4cyclictest0-21swapper/309:30:133
1193524993123,4cyclictest0-21swapper/309:05:263
119352199319,5cyclictest131rcu_preempt09:45:112
1193521993123,5cyclictest1204086-21kworker/u8:0+events_unbound07:45:132
1193521993122,6cyclictest0-21swapper/211:05:262
1193521993122,6cyclictest0-21swapper/211:05:262
1193521993121,6cyclictest0-21swapper/209:40:242
1193521993118,7cyclictest1257508-21kworker/u8:3+events_unbound10:15:212
119352199311,12cyclictest32-21ksoftirqd/211:20:102
1193516993123,4cyclictest0-21swapper/111:40:241
1193516993123,4cyclictest0-21swapper/110:55:001
1193516993123,4cyclictest0-21swapper/108:40:001
1193516993121,6cyclictest1291649-21grep11:50:241
119351299319,12cyclictest131rcu_preempt08:15:260
1193512993117,4cyclictest131rcu_preempt08:20:060
1193512993115,5cyclictest131rcu_preempt07:40:010
1193512993114,6cyclictest131rcu_preempt09:50:070
1193512993114,5cyclictest131rcu_preempt12:15:240
1193512993110,10cyclictest0-21swapper/012:33:240
119351299310,8cyclictest0-21swapper/011:45:110
1193524993022,4cyclictest0-21swapper/310:30:233
1193524993022,4cyclictest0-21swapper/307:25:143
1193524993016,10cyclictest1302359-21debian-sa112:25:003
1193521993022,4cyclictest0-21swapper/209:55:232
1193521993022,4cyclictest0-21swapper/209:15:162
1193521993021,6cyclictest0-21swapper/209:05:262
1193521993018,8cyclictest204-21dbus-daemon08:45:312
1193521993018,8cyclictest204-21dbus-daemon07:15:032
1193521993013,6cyclictest1220634-21kworker/u8:1+events_unbound08:31:442
1193516993022,4cyclictest0-21swapper/111:10:251
1193516993022,4cyclictest0-21swapper/107:40:251
1193516993021,5cyclictest1227895-21grep08:45:241
119351299307,13cyclictest11-21ksoftirqd/009:45:180
1193512993024,3cyclictest13550irq/42-30be0000.ethernet09:35:000
119351299301,7cyclictest11-21ksoftirqd/009:40:110
1193512993015,3cyclictest131rcu_preempt07:50:150
1193512993011,4cyclictest0-21swapper/011:04:240
119352499292,4cyclictest131rcu_preempt09:15:113
1193524992922,4cyclictest0-21swapper/310:50:253
1193524992921,4cyclictest0-21swapper/311:00:163
1193524992921,4cyclictest0-21swapper/310:05:153
1193524992920,6cyclictest1204685-21seq07:40:153
1193524992919,6cyclictest0-21swapper/308:50:003
119352199299,5cyclictest131rcu_preempt07:30:112
1193521992923,4cyclictest1216162-21kworker/u8:2+events_unbound08:35:312
1193521992915,6cyclictest1295490-21kworker/u8:0+events_unbound12:08:382
1193516992921,4cyclictest0-21swapper/110:20:241
1193516992921,3cyclictest0-21swapper/111:45:151
1193516992919,5cyclictest1282946-21grep11:25:241
119351299299,9cyclictest0-21swapper/008:31:290
119351299299,11cyclictest11-21ksoftirqd/007:15:030
1193512992923,4cyclictest1193506-21cyclictest08:25:240
1193512992920,6cyclictest151rcuc/012:20:120
1193512992917,3cyclictest131rcu_preempt10:45:180
1193512992911,11cyclictest131rcu_preempt10:42:260
1193512992911,11cyclictest131rcu_preempt09:05:200
1193524992822,4cyclictest1209213-21kworker/u8:1+events_unbound07:55:163
1193524992818,7cyclictest1-21systemd12:26:023
1193524992818,6cyclictest0-21swapper/310:45:003
1193521992820,4cyclictest0-21swapper/211:25:142
1193521992819,6cyclictest1204733-21tune2fs07:40:152
1193521992818,7cyclictest1230071-21auditctl08:55:002
1193521992813,6cyclictest1204086-21kworker/u8:0+events_unbound07:53:242
119352199281,13cyclictest0-21swapper/208:43:052
119352199280,16cyclictest0-21swapper/209:00:132
1193516992821,3cyclictest0-21swapper/110:15:221
1193516992820,4cyclictest0-21swapper/107:50:001
1193516992819,4cyclictest0-21swapper/109:25:251
1193516992818,6cyclictest1217500-21grep08:15:271
119351299287,12cyclictest11-21ksoftirqd/009:20:210
1193512992822,3cyclictest0-21swapper/007:40:250
1193512992816,4cyclictest131rcu_preempt09:18:570
1193512992815,5cyclictest131rcu_preempt08:10:220
1193512992815,5cyclictest131rcu_preempt08:10:220
1193524992719,4cyclictest0-21swapper/311:05:263
1193524992719,4cyclictest0-21swapper/311:05:263
1193524992716,6cyclictest0-21swapper/310:35:263
1193521992720,4cyclictest0-21swapper/211:00:012
1193521992719,4cyclictest0-21swapper/212:20:162
1193521992718,6cyclictest1242337-21cat09:30:012
1193521992712,8cyclictest131rcu_preempt10:40:162
1193516992718,5cyclictest0-21swapper/112:20:161
119351299279,11cyclictest11-21ksoftirqd/008:50:010
1193512992721,4cyclictest1250580-21kworker/u8:0+events_unbound10:34:410
1193512992714,5cyclictest131rcu_preempt10:55:010
1193524992618,5cyclictest0-21swapper/307:10:253
1193524992618,4cyclictest0-21swapper/310:25:253
1193524992617,6cyclictest0-21swapper/311:45:213
1193524992616,7cyclictest0-21swapper/308:45:003
1193524992616,6cyclictest0-21swapper/308:50:263
1193524992615,7cyclictest40-21ksoftirqd/307:35:243
1193524992615,7cyclictest1-21systemd10:10:443
119352499261,14cyclictest0-21swapper/309:45:113
119352199264,12cyclictest1195621-21kworker/2:2-mm_percpu_wq12:35:592
1193521992620,4cyclictest1209213-21kworker/u8:1+events_unbound07:55:242
1193521992619,4cyclictest1256092-21apt10:10:012
1193521992616,7cyclictest1279969-21grep11:20:002
1193516992619,3cyclictest0-21swapper/108:10:201
1193516992619,3cyclictest0-21swapper/108:10:201
1193516992618,5cyclictest0-21swapper/112:00:161
1193516992618,5cyclictest0-21swapper/112:00:161
119351299266,13cyclictest11-21ksoftirqd/008:55:020
119351299266,12cyclictest11-21ksoftirqd/011:35:010
1193512992619,3cyclictest0-21swapper/007:55:150
119352499258,8cyclictest131rcu_preempt07:45:113
1193524992519,4cyclictest1243901-21kworker/u8:0+events_unbound09:42:413
1193524992518,5cyclictest1271083-21kworker/u8:0+events_unbound10:58:343
1193524992516,6cyclictest0-21swapper/308:40:003
119352499251,5cyclictest1208383-21meminfo07:50:213
119352199254,3cyclictest131rcu_preempt09:35:132
119352199254,13cyclictest32-21ksoftirqd/211:32:082
1193521992518,5cyclictest1271083-21kworker/u8:0+events_unbound11:10:122
1193521992518,4cyclictest1293733-21kworker/u8:1+events_unbound12:01:152
1193521992518,4cyclictest1293733-21kworker/u8:1+events_unbound12:01:152
1193521992517,6cyclictest1178662-21kworker/u8:1+events_unbound07:29:422
1193521992511,4cyclictest1253025-21df10:00:152
1193516992518,3cyclictest0-21swapper/111:20:191
1193516992518,3cyclictest0-21swapper/110:05:011
119351299255,12cyclictest11-21ksoftirqd/011:50:240
119351299254,3cyclictest131rcu_preempt09:56:080
119352499244,4cyclictest131rcu_preempt08:30:123
1193524992417,4cyclictest0-21swapper/312:10:253
1193524992417,4cyclictest0-21swapper/311:35:013
1193521992418,4cyclictest1216162-21kworker/u8:2+events_unbound08:20:182
119351699243,3cyclictest131rcu_preempt11:35:131
1193516992416,5cyclictest0-21swapper/108:50:161
1193516992416,4cyclictest0-21swapper/109:05:161
1193516992415,4cyclictest0-21swapper/109:30:141
1193516992414,7cyclictest1237905-21ntp_states09:15:211
1193516992414,6cyclictest0-21swapper/111:35:011
1193516992412,8cyclictest1300234-21grep12:15:241
119352499237,5cyclictest1271083-21kworker/u8:0+events_unbound11:11:203
1193524992317,3cyclictest0-21swapper/310:15:243
1193524992316,4cyclictest1260887-21kworker/u8:1+events_unbound10:22:403
1193524992316,4cyclictest1202567-21sh07:35:013
1193516992317,3cyclictest1256096-21kthreadd10:10:011
1193516992317,3cyclictest0-21swapper/108:40:171
1193516992316,4cyclictest0-21swapper/112:30:261
1193516992315,4cyclictest0-21swapper/112:10:251
1193516992314,6cyclictest0-21swapper/110:45:001
1193516992313,7cyclictest204-21dbus-daemon07:30:071
1193516992312,8cyclictest1212399-21grep08:00:261
1193524992216,3cyclictest0-21swapper/312:00:153
1193524992216,3cyclictest0-21swapper/312:00:153
1193524992214,6cyclictest1287215-21fschecks_time11:40:143
1193524992214,5cyclictest391ktimers/307:15:133
1193524992214,5cyclictest1249506-21grep09:50:133
1193524992214,5cyclictest1188238-21kworker/u8:0+events_unbound07:20:133
1193516992217,3cyclictest231ktimers/110:25:011
1193516992216,3cyclictest0-21swapper/110:55:251
1193516992216,3cyclictest0-21swapper/109:10:201
1193516992215,5cyclictest53-21kcompactd012:25:241
1193516992215,4cyclictest0-21swapper/108:25:001
1193516992214,5cyclictest0-21swapper/110:30:151
1193516992214,4cyclictest0-21swapper/110:10:261
1193524992115,3cyclictest1306216-21fschecks_time12:35:163
1193516992114,5cyclictest231ktimers/109:35:161
1193516992114,4cyclictest1220229-21fschecks_count08:25:151
1193516992114,4cyclictest0-21swapper/107:50:271
1193516992112,5cyclictest164-21systemd-journal12:36:041
119352499208,3cyclictest131rcu_preempt09:10:253
1193524992014,3cyclictest0-21swapper/312:30:133
1193524992014,3cyclictest0-21swapper/311:20:213
1193524992013,5cyclictest199-21systemd-network12:15:153
1193524992012,5cyclictest0-21swapper/311:35:253
1193524992012,5cyclictest0-21swapper/311:25:243
119351699203,12cyclictest1250513-21tail09:50:251
1193516992014,4cyclictest231ktimers/112:05:221
1193516992011,6cyclictest1268798-21/usr/sbin/munin10:45:191
1193516991913,4cyclictest231ktimers/108:10:001
1193516991913,4cyclictest231ktimers/108:10:001
1193516991913,3cyclictest1278652-21fschecks_count11:15:151
1193516991912,4cyclictest1198434-21mailstats07:20:221
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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