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2026-09-21 - 17:52

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 Mon Sep 21, 2026 12:44:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
227357995322,13cyclictest0-21swapper/208:05:262
227348995143,4cyclictest257294-21munin-plugin-st08:35:000
22735799501,30cyclictest312893-21latency11:15:192
227348995039,7cyclictest297994-21grep10:30:260
227348995039,7cyclictest297994-21grep10:30:260
227352994943,4cyclictest305309-21kworker/u8:0+events_unbound11:00:571
227361994833,12cyclictest391ktimers/311:45:113
22735799471,40cyclictest340233-21apt-get12:35:142
22735799471,40cyclictest338527-21apt-get12:30:122
227352994720,4cyclictest131rcu_preempt10:40:131
227352994616,7cyclictest131rcu_preempt11:50:141
22735799451,39cyclictest290444-21/usr/sbin/munin10:10:182
227348994537,4cyclictest282892-21idleruntime-cro09:50:000
227357994414,27cyclictest273444-21ntp_states09:20:212
22735799441,38cyclictest306536-21/usr/sbin/munin10:55:252
227352994436,5cyclictest303721-21latency_hist10:50:001
227348994436,5cyclictest234906-21idleruntime-cro07:30:000
22735799430,38cyclictest0-21swapper/208:55:122
22735799430,38cyclictest0-21swapper/208:55:122
227348994333,6cyclictest336778-21fschecks_count12:25:130
227348994332,8cyclictest231293-21idleruntime-cro07:20:010
22735799423,32cyclictest250690-21apt-get08:15:132
22735799421,36cyclictest321170-21df_inode11:40:152
227352994230,9cyclictest231ktimers/109:45:131
227348994233,5cyclictest238299-21cron07:40:000
22735799413,33cyclictest307985-21ntp_states11:00:202
22735799411,35cyclictest309638-21/usr/sbin/munin11:05:202
22735799411,35cyclictest293840-21/usr/sbin/munin10:20:182
22735799411,35cyclictest283100-21munin-node09:50:102
22735799411,35cyclictest266735-21/usr/sbin/munin09:00:212
22735799411,35cyclictest254204-21/usr/sbin/munin08:25:132
22735799411,34cyclictest319346-21apt-get11:35:152
22735799411,34cyclictest319346-21apt-get11:35:152
227352994114,5cyclictest0-21swapper/108:50:131
227352994114,5cyclictest0-21swapper/108:50:131
227348994133,5cyclictest317414-21latency_hist11:30:000
227361994028,8cyclictest236173-21grep07:30:253
22735799402,33cyclictest271162-21apt-get09:15:132
22735799402,33cyclictest240367-21/usr/sbin/munin07:45:152
22735799401,36cyclictest263156-21/usr/sbin/munin08:50:212
22735799401,36cyclictest263156-21/usr/sbin/munin08:50:212
22735799401,36cyclictest244031-21/usr/sbin/munin07:55:192
22735799401,36cyclictest235378-21/usr/sbin/munin07:30:162
22735799401,34cyclictest292433-21/usr/sbin/munin10:15:232
22735799401,34cyclictest284806-21apt-get09:55:122
227348994029,6cyclictest0-21swapper/009:20:010
227361993931,5cyclictest286284-21munin-plugin-st10:00:003
22735799392,34cyclictest230134-21/usr/sbin/munin07:15:172
22735799391,35cyclictest302168-21cpuspeed10:45:142
22735799391,35cyclictest278325-21/usr/sbin/munin09:35:202
22735799391,35cyclictest276724-21/usr/sbin/munin09:30:192
22735799391,35cyclictest233445-21apt-get07:25:142
22735799391,35cyclictest228714-21cron07:12:012
22735799391,34cyclictest258082-21/usr/sbin/munin08:35:232
22735799391,33cyclictest333112-21/usr/sbin/munin12:15:152
22735799391,33cyclictest329910-21/usr/sbin/munin12:05:192
22735799391,33cyclictest328725-21/usr/sbin/munin12:00:252
22735799391,33cyclictest314340-21cstates11:20:152
22735799391,33cyclictest304112-21/usr/sbin/munin10:50:162
22735799391,33cyclictest297527-21/usr/sbin/munin10:30:222
22735799391,33cyclictest297527-21/usr/sbin/munin10:30:222
22735799391,33cyclictest248991-21apt-get08:10:142
22735799390,33cyclictest269461-21apt-get09:10:132
227352993928,7cyclictest0-21swapper/107:20:011
227352993927,8cyclictest328887-21unixbench_multi12:00:251
227348993927,8cyclictest284574-21audit_send_reply09:55:000
227361993831,4cyclictest279474-21basename09:40:003
227361993830,5cyclictest293316-21cron10:20:003
227361993829,6cyclictest306717-21grep10:55:263
22735799383,32cyclictest317748-21df11:30:142
227357993824,10cyclictest311ktimers/211:25:132
22735799382,33cyclictest327241-21sshd11:55:262
22735799382,31cyclictest279828-21/usr/sbin/munin09:40:152
22735799381,34cyclictest335839-21sshd12:21:042
22735799381,34cyclictest323886-21cron11:46:012
22735799381,34cyclictest311156-21/usr/sbin/munin11:10:202
22735799381,34cyclictest299004-21/usr/sbin/munin10:35:182
22735799381,34cyclictest289308-21/usr/sbin/munin10:05:252
22735799381,34cyclictest255898-21/usr/sbin/munin08:30:152
22735799381,34cyclictest231742-21munin-node07:20:122
22735799381,33cyclictest238557-21apt-get07:40:132
22735799381,33cyclictest238557-21apt-get07:40:132
22735799381,32cyclictest325025-21ntp_states11:50:222
22735799381,32cyclictest295549-21/usr/sbin/munin10:25:162
227352993825,9cyclictest246592-21grep08:00:251
227348993829,5cyclictest291595-21cron10:15:000
227348993829,4cyclictest0-21swapper/007:55:240
227348993826,7cyclictest0-21swapper/010:20:000
227348993825,8cyclictest0-21swapper/010:40:000
227361993729,5cyclictest294550-21unixbench_multi10:20:273
227361993728,6cyclictest310166-21grep11:05:253
227357993726,7cyclictest0-21swapper/208:05:012
22735799371,33cyclictest337914-21cron12:28:002
22735799371,33cyclictest332408-21cron12:11:002
22735799371,33cyclictest301078-21/usr/sbin/munin10:40:232
22735799371,33cyclictest281692-21/usr/sbin/munin09:45:172
22735799371,33cyclictest274907-21/usr/sbin/munin09:25:172
22735799371,33cyclictest260447-21cron08:42:002
22735799371,33cyclictest252502-21/usr/sbin/munin08:20:132
22735799371,31cyclictest286734-21/usr/sbin/munin10:00:162
22735799371,31cyclictest261180-21/usr/sbin/munin08:45:172
22735799371,30cyclictest241956-21apt-get07:50:132
22735299376,6cyclictest131rcu_preempt11:15:121
227361993626,7cyclictest276468-21fschecks_time09:30:173
227361993626,5cyclictest0-21swapper/308:05:263
227361993625,6cyclictest0-21swapper/312:00:253
22735799361,32cyclictest268089-21/usr/sbin/munin09:05:202
22735799361,32cyclictest236835-21apt-get07:35:112
227352993628,4cyclictest0-21swapper/112:15:001
227352993616,7cyclictest131rcu_preempt11:55:111
227348993625,8cyclictest330608-21unixbench_multi12:05:260
227348993619,13cyclictest11-21ksoftirqd/011:05:120
22735299355,4cyclictest131rcu_preempt12:30:121
227352993527,5cyclictest258992-21munin-plugin-st08:40:001
227352993527,4cyclictest0-21swapper/108:50:001
227352993526,5cyclictest0-21swapper/110:30:511
227352993526,5cyclictest0-21swapper/110:30:511
227352993522,10cyclictest231ktimers/109:35:131
227361993426,4cyclictest0-21swapper/307:45:273
227361993425,6cyclictest0-21swapper/307:15:013
227352993427,4cyclictest0-21swapper/109:25:241
227352993426,5cyclictest296364-21kworker/u8:3+events_unbound10:25:511
227352993426,4cyclictest284135-21unixbench_singl09:50:241
227348993422,7cyclictest315309-21grep11:20:260
227361993326,4cyclictest315230-21unixbench_multi11:20:263
227361993323,6cyclictest0-21swapper/312:00:003
227361993322,8cyclictest341704-21sendmail12:40:003
22735299333,6cyclictest131rcu_preempt10:05:121
22735299332,4cyclictest131rcu_preempt08:25:111
227352993322,7cyclictest0-21swapper/109:45:001
227348993324,4cyclictest0-21swapper/007:50:000
227348993323,6cyclictest0-21swapper/012:25:010
227361993224,4cyclictest0-21swapper/312:25:223
227361993222,7cyclictest257653-21fschecks_count08:35:193
227352993224,4cyclictest0-21swapper/112:20:251
22735299322,26cyclictest315248-21grep11:20:261
227352993221,7cyclictest334472-21basename12:20:001
227352993221,7cyclictest0-21swapper/111:41:011
227352993220,6cyclictest0-21swapper/112:25:131
227348993225,4cyclictest325521-21unixbench_singl11:50:260
227348993223,4cyclictest0-21swapper/007:20:190
227361993124,4cyclictest0-21swapper/307:40:173
227361993124,4cyclictest0-21swapper/307:40:163
227361993123,5cyclictest253894-21munin-plugin-st08:25:013
227361993120,8cyclictest391ktimers/309:50:113
227352993124,5cyclictest296364-21kworker/u8:3+events_unbound10:35:241
227352993123,4cyclictest0-21swapper/111:25:251
227352993123,4cyclictest0-21swapper/110:55:171
227352993122,4cyclictest0-21swapper/110:10:491
227352993121,6cyclictest0-21swapper/110:50:261
227348993123,4cyclictest0-21swapper/007:30:250
227348993121,6cyclictest303085-21unixbench_multi10:45:250
227348993121,6cyclictest0-21swapper/012:00:000
227361993024,3cyclictest0-21swapper/308:00:013
227361993021,5cyclictest0-21swapper/308:55:163
227361993021,5cyclictest0-21swapper/308:55:163
227352993024,3cyclictest0-21swapper/107:45:001
227352993024,3cyclictest0-21swapper/107:45:001
227352993023,4cyclictest0-21swapper/109:00:231
227352993018,8cyclictest272195-21grep09:15:281
227352993018,8cyclictest248300-21grep08:05:261
227348993023,4cyclictest0-21swapper/010:50:260
227348993022,4cyclictest0-21swapper/009:25:240
227348993021,5cyclictest0-21swapper/011:20:000
227361992922,4cyclictest0-21swapper/311:55:013
227361992920,6cyclictest270520-21grep09:10:263
227361992919,7cyclictest0-21swapper/311:40:003
227361992919,7cyclictest0-21swapper/311:40:003
227352992921,4cyclictest0-21swapper/107:20:261
227352992918,7cyclictest241268-21tail07:45:261
227348992923,3cyclictest247062-21kthreadd08:05:010
227348992920,5cyclictest253459-21grep08:20:240
227348992919,5cyclictest0-21swapper/008:15:250
227348992916,6cyclictest0-21swapper/010:20:260
227348992910,3cyclictest2659582latency_hist09:00:010
227348992910,3cyclictest2659582latency_hist09:00:010
227361992821,4cyclictest282883-21idleruntime-cro09:50:003
227361992820,4cyclictest0-21swapper/310:35:253
227361992818,7cyclictest438-21cron07:55:003
22736199281,10cyclictest2464572cat08:00:243
227352992821,5cyclictest284285-21kworker/u8:2+events_unbound09:55:441
227352992820,4cyclictest0-21swapper/109:05:181
227352992819,5cyclictest0-21swapper/109:00:001
227352992819,5cyclictest0-21swapper/109:00:001
227352992819,5cyclictest0-21swapper/107:10:171
227348992820,4cyclictest0-21swapper/012:00:250
227348992820,4cyclictest0-21swapper/011:00:000
227361992720,4cyclictest0-21swapper/310:10:263
227361992720,3cyclictest0-21swapper/310:50:003
227361992716,7cyclictest275602-21grep09:25:243
227352992721,4cyclictest227341-21cyclictest09:20:161
227352992719,5cyclictest231738-21kworker/u8:1+events_unbound07:26:491
227352992719,4cyclictest0-21swapper/107:35:141
227352992713,4cyclictest131rcu_preempt07:50:201
227348992720,5cyclictest255435-21kworker/u8:3+events_unbound08:40:350
227348992717,6cyclictest0-21swapper/010:05:000
227348992716,7cyclictest204-21dbus-daemon09:30:410
227361992618,4cyclictest0-21swapper/311:15:163
227361992618,4cyclictest0-21swapper/307:20:263
227361992617,6cyclictest339993-21sh12:35:003
227352992620,4cyclictest236232-21kworker/u8:2+events_unbound07:33:171
227352992620,3cyclictest0-21swapper/111:35:271
227352992620,3cyclictest0-21swapper/111:35:271
227352992619,4cyclictest0-21swapper/111:10:271
227352992618,5cyclictest0-21swapper/112:05:171
227352992618,5cyclictest0-21swapper/110:15:261
227352992618,4cyclictest0-21swapper/108:40:191
22735299261,4cyclictest293563-21apt-get10:20:131
227348992616,7cyclictest267896-21fschecks_count09:05:170
227361992518,4cyclictest0-21swapper/311:10:273
227361992516,5cyclictest0-21swapper/309:05:283
227361992516,5cyclictest0-21swapper/308:25:163
227361992516,5cyclictest0-21swapper/307:40:003
227361992513,8cyclictest204-21dbus-daemon07:19:573
227352992519,3cyclictest0-21swapper/111:30:141
227352992518,4cyclictest253885-21audit_send_reply08:25:011
227352992516,5cyclictest269619-21fschecks_count09:10:171
227348992518,3cyclictest0-21swapper/011:45:000
227348992517,5cyclictest0-21swapper/010:00:000
227348992516,7cyclictest121ktimers/011:00:110
227348992516,6cyclictest0-21swapper/007:15:020
227348992514,8cyclictest333698-21grep12:15:230
227361992418,4cyclictest266216-21fschecks_count09:00:143
227361992417,3cyclictest0-21swapper/310:50:253
227361992416,4cyclictest0-21swapper/310:40:253
227361992414,6cyclictest334039-21grep12:15:253
227352992418,4cyclictest239733-21kworker/u8:0+events_unbound08:17:401
227352992418,3cyclictest0-21swapper/112:35:241
227352992417,5cyclictest286046-21kworker/u8:1+events_unbound10:00:531
227352992416,6cyclictest243167-21kworker/u8:1+events_unbound07:55:221
227352992416,5cyclictest0-21swapper/109:30:261
227348992417,5cyclictest11-21ksoftirqd/008:25:120
227348992417,3cyclictest0-21swapper/008:39:350
22734899241,21cyclictest0-21swapper/010:09:050
22734899241,19cyclictest0-21swapper/012:32:570
22734899241,19cyclictest0-21swapper/012:12:460
22734899241,19cyclictest0-21swapper/009:21:210
22734899241,19cyclictest0-21swapper/007:44:210
22734899241,19cyclictest0-21swapper/007:44:210
22734899240,20cyclictest0-21swapper/008:10:100
22736199234,4cyclictest318073-21cat11:30:183
227361992317,3cyclictest0-21swapper/309:15:173
227361992316,4cyclictest308433-21grep11:00:243
227361992316,4cyclictest0-21swapper/311:25:253
227361992315,6cyclictest391ktimers/308:50:153
227361992315,6cyclictest391ktimers/308:50:153
227361992315,5cyclictest391ktimers/308:10:233
227348992317,3cyclictest266187-21fschecks_count09:00:140
22734899231,5cyclictest261939-21tail08:45:260
227348992313,8cyclictest340949-21mailstats12:35:250
22734899231,18cyclictest0-21swapper/011:38:170
22734899231,18cyclictest0-21swapper/011:38:170
22734899231,18cyclictest0-21swapper/010:29:520
22734899231,18cyclictest0-21swapper/007:54:440
22734899230,19cyclictest0-21swapper/010:42:070
22734899230,19cyclictest0-21swapper/009:43:230
227361992217,3cyclictest0-21swapper/310:25:133
227361992216,4cyclictest297974-21grep10:30:263
227361992216,4cyclictest297974-21grep10:30:263
227361992216,3cyclictest0-21swapper/308:40:343
227361992214,5cyclictest391ktimers/310:05:003
227361992212,6cyclictest0-21swapper/308:45:163
227352992215,5cyclictest323864-21kworker/u8:0+events_unbound11:48:181
227348992216,2cyclictest0-21swapper/011:48:190
227348992215,3cyclictest0-21swapper/008:53:190
227348992215,3cyclictest0-21swapper/008:53:190
227348992214,6cyclictest121ktimers/009:35:150
227348992211,8cyclictest270281-21cat09:10:250
22736199219,8cyclictest321505-21seq11:40:183
227361992115,3cyclictest331444-21fschecks_count12:10:173
227361992115,3cyclictest0-21swapper/312:05:203
227361992115,3cyclictest0-21swapper/308:30:233
227361992115,3cyclictest0-21swapper/308:15:253
227361992112,6cyclictest273922-21unixbench_singl09:20:253
227352992114,4cyclictest0-21swapper/111:05:251
227361992012,6cyclictest0-21swapper/307:30:013
227348992010,7cyclictest311343-21ntpq11:10:220
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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