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2026-03-29 - 17:17

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 Sun Mar 29, 2026 12:44:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1264668994740,5cyclictest1246780-21kworker/u8:3+events_unbound07:35:043
1264668994533,8cyclictest1282462-21sendmail08:00:013
1264660994535,6cyclictest1351732-21fschecks_time11:20:161
1264656994535,7cyclictest1313574-21cron09:30:010
1264665994436,5cyclictest1300942-21unixbench_multi08:50:262
1264660994436,5cyclictest1364938-21munin-run12:00:001
1264668994332,9cyclictest391ktimers/308:15:123
1264665994335,4cyclictest1366663-21munin-plugin-st12:05:002
1264656994333,6cyclictest0-21swapper/009:40:010
1264656994333,5cyclictest1328928-21idleruntime-cro10:15:010
1264668994236,4cyclictest1340934-21kworker/u8:1+events_unbound11:14:543
1264668994134,5cyclictest1327038-21kworker/u8:1+events_unbound10:34:483
1264668994131,6cyclictest1359845-21munin-plugin-st11:45:003
1264665994133,4cyclictest0-21swapper/207:55:012
1264668994034,4cyclictest1270032-21kworker/u8:0+events_unbound08:04:213
1264668994026,9cyclictest1295834-21grep08:35:273
1264668993927,6cyclictest0-21swapper/309:09:363
1264665993931,4cyclictest1361301-21kworker/u8:3+events_unbound11:50:012
1264665993931,4cyclictest1361301-21kworker/u8:3+events_unbound11:50:002
1264665993929,6cyclictest1351731-21fschecks_time11:20:162
1264656993929,7cyclictest1346189-21sh11:05:000
1264656993926,9cyclictest1378382-21grep12:35:290
1264668993827,6cyclictest1308252-21munin-plugin-st09:15:003
1264668993826,7cyclictest0-21swapper/308:50:263
1264656993827,7cyclictest1280295-21grep07:50:230
1264668993725,8cyclictest1347490-21grep11:05:263
1264665993730,4cyclictest1313587-21idleruntime-cro09:30:012
1264668993630,4cyclictest1327038-21kworker/u8:1+events_unbound10:24:413
1264668993627,5cyclictest0-21swapper/310:05:003
1264668993623,8cyclictest0-21swapper/308:20:263
1264665993626,6cyclictest0-21swapper/210:25:242
1264665993626,6cyclictest0-21swapper/208:25:002
1264660993626,6cyclictest1319959-21grep09:45:251
1264656993627,5cyclictest1337661-21munin-plugin-st10:40:010
1264656993617,6cyclictest0-21swapper/012:00:010
1264668993529,4cyclictest1310397-21kworker/u8:4+events_unbound09:39:433
1264668993524,6cyclictest0-21swapper/309:20:253
1264665993528,3cyclictest0-21swapper/208:00:012
1264665993525,7cyclictest0-21swapper/212:00:002
1264660993524,7cyclictest0-21swapper/108:00:271
1264656993519,13cyclictest121ktimers/007:20:120
1264668993425,5cyclictest1284604-21fschecks_time08:05:183
1264668993424,6cyclictest0-21swapper/310:10:003
1264668993419,9cyclictest391ktimers/311:55:133
1264665993426,4cyclictest0-21swapper/212:25:162
1264665993424,7cyclictest1306536-21apt09:10:002
1264665993422,8cyclictest311ktimers/210:45:122
1264660993427,4cyclictest1356406-21cron11:35:001
1264660993426,6cyclictest1357905-21kworker/u8:2+events_unbound12:10:031
1264660993425,5cyclictest0-21swapper/107:40:141
1264656993426,4cyclictest0-21swapper/012:10:250
1264668993322,7cyclictest1371344-21grep12:15:253
1264668993322,7cyclictest1269891-21grep07:20:253
1264668993319,6cyclictest1321912-21kworker/u8:2+events_unbound09:58:173
1264665993326,4cyclictest1268589-21auditctl07:20:012
1264660993324,4cyclictest0-21swapper/109:10:171
1264660993323,6cyclictest0-21swapper/110:10:251
1264656993323,6cyclictest0-21swapper/008:55:010
1264656993312,10cyclictest131rcu_preempt09:05:120
1264668993223,5cyclictest0-21swapper/307:30:263
1264668993222,6cyclictest1342775-21cron10:55:003
1264668993221,7cyclictest0-21swapper/308:25:263
1264668993221,6cyclictest0-21swapper/311:19:563
1264668993218,10cyclictest391ktimers/308:55:113
1264665993225,4cyclictest0-21swapper/210:55:272
1264665993224,5cyclictest0-21swapper/211:45:002
1264665993222,6cyclictest0-21swapper/211:05:002
1264660993224,5cyclictest1335945-21cron10:35:021
1264660993224,5cyclictest0-21swapper/112:35:001
1264660993224,4cyclictest0-21swapper/112:30:001
1264660993224,4cyclictest0-21swapper/109:30:151
1264660993223,6cyclictest0-21swapper/111:50:151
1264660993223,6cyclictest0-21swapper/111:50:151
1264660993222,7cyclictest1274289-21fschecks_count07:35:181
1264660993221,7cyclictest0-21swapper/111:15:001
1264656993223,6cyclictest0-21swapper/012:25:000
1264668993123,4cyclictest0-21swapper/310:45:263
1264668993123,4cyclictest0-21swapper/309:50:013
126466899312,25cyclictest1287097-21grep08:10:253
1264668993122,4cyclictest0-21swapper/308:40:253
1264668993121,5cyclictest0-21swapper/307:15:263
1264668993120,8cyclictest1355582-21uname11:30:253
1264668993115,13cyclictest391ktimers/310:10:133
1264660993124,4cyclictest1310064-21apt-config09:20:011
1264660993123,5cyclictest1270298-21cron07:25:011
1264660993122,5cyclictest0-21swapper/112:20:241
1264660993121,6cyclictest0-21swapper/111:40:001
1264656993124,4cyclictest0-21swapper/008:40:010
1264656993123,4cyclictest0-21swapper/008:15:250
1264656993120,8cyclictest121ktimers/010:20:120
1264656993120,6cyclictest1283718-21grep08:00:260
1264668993021,6cyclictest1266284-21sh07:15:013
1264668993011,11cyclictest0-21swapper/309:50:163
1264665993023,4cyclictest0-21swapper/208:40:012
1264665993023,3cyclictest0-21swapper/207:20:252
1264665993022,5cyclictest0-21swapper/209:25:012
1264665993020,7cyclictest1322090-21sh09:55:002
1264660993021,5cyclictest0-21swapper/111:04:521
1264660993018,8cyclictest0-21swapper/108:30:271
1264660993011,4cyclictest13306522grep10:20:001
1264656993022,3cyclictest0-21swapper/010:00:000
126466899295,4cyclictest131rcu_preempt08:45:123
1264668992922,5cyclictest1333883-21kworker/u8:2+events_unbound10:40:283
1264668992918,7cyclictest0-21swapper/312:10:253
1264668992918,7cyclictest0-21swapper/307:45:273
1264665992923,3cyclictest0-21swapper/207:45:272
1264665992922,4cyclictest0-21swapper/212:05:252
1264665992922,3cyclictest0-21swapper/212:10:152
1264665992921,4cyclictest0-21swapper/210:00:012
1264665992920,7cyclictest1286617-21kworker/u8:1+events_unbound08:44:332
1264660992922,5cyclictest1301253-21kworker/u8:1+events_unbound08:54:331
1264660992921,5cyclictest1287071-21grep08:10:251
1264660992921,4cyclictest0-21swapper/110:25:241
1264656992917,8cyclictest204-21dbus-daemon11:50:000
1264656992917,8cyclictest204-21dbus-daemon11:50:000
126465699291,5cyclictest131rcu_preempt08:30:120
1264668992819,4cyclictest0-21swapper/310:40:013
126466899281,6cyclictest131rcu_preempt10:25:113
1264668992816,7cyclictest0-21swapper/309:40:253
1264668992813,5cyclictest1368136-21kworker/u8:1+events_unbound12:36:393
1264665992821,4cyclictest1349587-21sh11:15:002
1264665992821,4cyclictest1302704-21grep08:55:262
1264665992821,4cyclictest0-21swapper/211:40:002
1264665992821,3cyclictest0-21swapper/208:05:282
1264665992820,5cyclictest0-21swapper/207:40:002
1264665992819,6cyclictest1347892-21apt11:10:002
1264665992818,6cyclictest0-21swapper/207:35:012
1264660992822,4cyclictest1321912-21kworker/u8:2+events_unbound10:09:471
1264660992822,3cyclictest0-21swapper/110:00:001
1264660992820,4cyclictest0-21swapper/111:40:171
1264660992820,4cyclictest0-21swapper/109:05:001
1264660992816,7cyclictest0-21swapper/108:20:011
1264656992822,4cyclictest1270032-21kworker/u8:0+events_unbound07:39:190
1264656992821,3cyclictest0-21swapper/011:10:000
1264656992820,5cyclictest0-21swapper/008:45:020
1264656992820,4cyclictest0-21swapper/009:50:250
1264656992820,4cyclictest0-21swapper/007:25:150
1264656992819,6cyclictest0-21swapper/010:50:250
1264656992813,11cyclictest121ktimers/009:20:130
126466899278,4cyclictest131rcu_preempt12:05:123
1264668992713,10cyclictest1-21systemd09:19:393
1264665992721,3cyclictest0-21swapper/210:10:252
1264665992721,3cyclictest0-21swapper/208:20:012
1264665992720,3cyclictest0-21swapper/210:40:012
1264665992720,3cyclictest0-21swapper/208:45:242
1264665992718,6cyclictest1-21systemd09:39:412
1264665992717,6cyclictest1376870-21sh12:35:002
1264665992716,7cyclictest1265806-21grep07:10:252
1264660992719,4cyclictest0-21swapper/111:45:161
1264660992719,4cyclictest0-21swapper/111:45:161
1264660992717,6cyclictest0-21swapper/107:45:271
1264660992716,8cyclictest0-21swapper/108:25:161
1264660992716,7cyclictest0-21swapper/108:05:281
1264656992721,4cyclictest1282355-21kworker/u8:2+events_unbound08:29:300
1264656992721,3cyclictest0-21swapper/010:45:120
1264656992720,5cyclictest1313267-21kworker/u8:0+events_unbound10:04:460
1264656992719,5cyclictest0-21swapper/012:35:000
1264656992719,5cyclictest0-21swapper/010:45:010
1264656992719,4cyclictest0-21swapper/008:55:250
1264668992619,5cyclictest1368136-21kworker/u8:1+events_unbound12:20:183
1264668992616,5cyclictest438-21cron12:35:013
1264668992615,8cyclictest1270667-21forks07:25:143
1264668992615,7cyclictest1361079-21grep11:45:253
1264668992615,7cyclictest1361079-21grep11:45:253
1264665992619,4cyclictest1292888-21sh08:30:002
1264665992619,4cyclictest0-21swapper/211:50:162
1264665992619,4cyclictest0-21swapper/211:50:162
1264665992619,3cyclictest0-21swapper/212:35:292
1264665992619,3cyclictest0-21swapper/207:25:242
1264665992618,5cyclictest0-21swapper/210:00:242
1264665992618,4cyclictest0-21swapper/211:25:272
1264665992618,4cyclictest0-21swapper/207:40:242
1264665992617,6cyclictest311ktimers/209:30:132
1264665992615,7cyclictest1329311-21grep10:15:152
1264660992618,5cyclictest231ktimers/109:35:141
1264660992618,4cyclictest1344480-21idleruntime-cro11:00:001
1264660992618,4cyclictest0-21swapper/110:55:001
1264660992616,7cyclictest0-21swapper/107:50:191
1264660992614,8cyclictest204-21dbus-daemon07:19:161
126465699264,4cyclictest131rcu_preempt10:35:010
1264656992622,2cyclictest13550irq/42-30be0000.ethernet12:25:130
1264656992617,6cyclictest1363240-21basename11:55:000
1264656992617,6cyclictest1363240-21basename11:55:000
1264656992617,6cyclictest0-21swapper/012:15:250
1264656992617,5cyclictest0-21swapper/007:45:270
126465699261,22cyclictest0-21swapper/011:30:140
1264668992518,3cyclictest0-21swapper/309:00:253
1264668992515,6cyclictest1313106-21grep09:25:253
1264668992514,7cyclictest1-21systemd10:19:473
1264665992520,3cyclictest1303363-21/usr/sbin/munin09:00:182
1264665992519,3cyclictest0-21swapper/212:20:212
1264665992519,3cyclictest0-21swapper/209:20:002
1264665992518,5cyclictest1313267-21kworker/u8:0+events_unbound09:44:442
1264660992517,4cyclictest1273705-21auditctl07:35:001
1264660992512,9cyclictest204-21dbus-daemon08:59:341
1264656992519,2cyclictest0-21swapper/008:08:580
1264656992518,5cyclictest0-21swapper/009:45:010
1264656992518,3cyclictest0-21swapper/007:40:150
1264656992516,6cyclictest0-21swapper/011:15:010
1264656992515,7cyclictest1286895-21wc08:10:250
1264656992514,7cyclictest0-21swapper/008:25:010
126465699251,3cyclictest13662862sleep012:00:370
126466899247,10cyclictest0-21swapper/308:30:143
1264668992418,4cyclictest1357905-21kworker/u8:2+events_unbound12:27:053
1264668992418,3cyclictest0-21swapper/311:20:243
1264668992417,5cyclictest1313267-21kworker/u8:0+events_unbound09:34:413
1264668992417,5cyclictest1246780-21kworker/u8:3+events_unbound07:50:423
1264668992416,4cyclictest0-21swapper/312:00:243
1264668992416,4cyclictest0-21swapper/310:55:213
1264665992418,3cyclictest0-21swapper/210:20:202
1264665992418,3cyclictest0-21swapper/210:05:242
1264665992417,4cyclictest0-21swapper/212:15:252
1264665992417,4cyclictest0-21swapper/208:00:262
1264660992418,3cyclictest0-21swapper/110:20:241
1264660992418,3cyclictest0-21swapper/107:10:211
1264660992417,5cyclictest1310397-21kworker/u8:4+events_unbound09:44:471
1264660992416,5cyclictest0-21swapper/110:45:011
1264660992416,4cyclictest0-21swapper/112:20:001
1264660992416,4cyclictest0-21swapper/109:50:201
1264660992415,6cyclictest0-21swapper/112:00:231
126465699241,9cyclictest1359940-21latency_hist11:45:010
1264656992418,3cyclictest0-21swapper/010:05:180
1264656992418,3cyclictest0-21swapper/009:19:380
1264656992417,3cyclictest0-21swapper/010:16:490
1264656992416,5cyclictest0-21swapper/010:30:010
126465699241,21cyclictest1304876-21sed09:05:010
126465699241,19cyclictest0-21swapper/007:14:150
1264668992317,4cyclictest1337338-21kworker/u8:0+events_unbound11:01:283
1264668992316,4cyclictest1337338-21kworker/u8:0+events_unbound11:35:453
1264668992315,6cyclictest1337338-21kworker/u8:0+events_unbound11:29:423
1264665992317,3cyclictest0-21swapper/211:15:242
1264665992313,7cyclictest1356058-21seq11:30:512
1264665992312,8cyclictest311ktimers/208:30:142
1264660992316,3cyclictest0-21swapper/111:05:241
1264660992316,3cyclictest0-21swapper/110:40:011
1264660992315,4cyclictest1324207-21fschecks_count10:00:141
1264660992315,4cyclictest0-21swapper/109:20:251
1264660992312,7cyclictest1297582-21grep08:40:251
1264656992317,3cyclictest0-21swapper/010:55:260
1264656992317,3cyclictest0-21swapper/009:15:000
1264656992316,3cyclictest0-21swapper/011:36:200
126465699231,18cyclictest0-21swapper/007:58:500
126465699231,18cyclictest0-21swapper/007:31:270
126466599222,17cyclictest1334041-21apt-get10:30:052
1264665992216,3cyclictest0-21swapper/209:45:252
1264665992215,4cyclictest311ktimers/209:12:352
1264665992211,8cyclictest1341867-21ntp_states10:50:212
1264660992216,3cyclictest0-21swapper/112:35:271
1264660992214,5cyclictest0-21swapper/108:25:011
1264660992214,4cyclictest0-21swapper/111:15:241
1264660992212,7cyclictest1312322-21uniq09:25:161
1264656992217,3cyclictest13550irq/42-30be0000.ethernet12:05:170
1264656992216,4cyclictest0-21swapper/011:20:000
1264656992215,4cyclictest0-21swapper/011:25:000
1264656992215,4cyclictest0-21swapper/009:30:250
126465699221,19cyclictest0-21swapper/009:47:460
126465699221,18cyclictest0-21swapper/008:45:430
126466599219,8cyclictest1287492-21sshd08:14:242
1264660992114,4cyclictest1353243-21/usr/sbin/munin11:25:171
1264660992113,5cyclictest231ktimers/109:05:221
126465699204,13cyclictest1353549-21/usr/sbin/munin11:25:180
1264660991913,4cyclictest231ktimers/112:05:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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