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2026-03-06 - 17:07

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 highest latencies:
System rackbslot5s.osadl.org (updated Fri Mar 06, 2026 12:44:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3127992994936,10cyclictest391ktimers/309:10:123
3127988994738,7cyclictest3180119-21kworker/u8:3+events_unbound09:39:302
3127988994733,7cyclictest3145574-21kworker/u8:3+events_unbound08:04:142
3127988994537,6cyclictest3194103-21kworker/u8:0+events_unbound10:24:322
3127988994537,6cyclictest3194103-21kworker/u8:0+events_unbound10:24:322
3127983994534,8cyclictest3201211-21munin-run10:40:011
3127988994430,9cyclictest311ktimers/208:50:132
3127979994434,7cyclictest3159624-21sh08:40:010
3127988994236,4cyclictest3204245-21kworker/u8:3+events_unbound11:14:362
3127988994236,4cyclictest3170310-21kworker/u8:0+events_unbound09:14:252
3127992994133,5cyclictest3209756-21munin-plugin-st11:05:003
3127983994030,7cyclictest438-21cron09:30:011
3127979993931,5cyclictest3230175-21unixbench_multi12:00:250
3127979993926,8cyclictest3242346-21grep12:35:250
3127979993926,8cyclictest3242346-21grep12:35:250
3127988993832,4cyclictest3216567-21kworker/u8:0+events_unbound11:44:392
3127988993827,7cyclictest3130623-21grep07:15:152
3127988993729,4cyclictest3152616-21sendmail08:20:002
3127988993726,3cyclictest131rcu_preempt07:37:002
3127988993720,10cyclictest131rcu_preempt08:41:572
3127979993727,7cyclictest3160878-21grep08:40:240
3127992993626,7cyclictest3226737-21grep11:50:243
312798899368,8cyclictest32-21ksoftirqd/208:40:002
3127988993620,9cyclictest131rcu_preempt11:20:202
3127988993619,9cyclictest131rcu_preempt12:30:222
3127988993618,11cyclictest131rcu_preempt08:08:362
3127983993624,8cyclictest0-21swapper/112:00:261
3127979993626,6cyclictest3188607-21grep10:00:240
3127979993626,6cyclictest3184960-21grep09:50:240
3127992993528,4cyclictest3211666-21idleruntime-cro11:10:003
3127988993522,9cyclictest3211218-21grep11:05:252
3127988993512,7cyclictest32-21ksoftirqd/212:39:592
3127988993512,7cyclictest32-21ksoftirqd/212:39:592
3127983993527,5cyclictest3237461-21kworker/u8:0+events_unbound12:24:411
3127983993527,4cyclictest0-21swapper/108:45:171
3127983993524,7cyclictest0-21swapper/110:50:271
3127992993426,4cyclictest0-21swapper/309:40:263
3127992993426,4cyclictest0-21swapper/309:40:253
3127992993424,6cyclictest0-21swapper/307:20:273
3127988993426,4cyclictest0-21swapper/210:10:162
3127988993424,7cyclictest311ktimers/207:45:162
3127988993422,8cyclictest3178188-21grep09:30:262
3127988993422,5cyclictest131rcu_preempt09:24:402
3127988993420,5cyclictest131rcu_preempt11:25:362
3127988993416,9cyclictest131rcu_preempt08:20:172
3127988993413,5cyclictest131rcu_preempt09:50:222
3127988993410,4cyclictest0-21swapper/211:00:242
3127983993425,5cyclictest3173719-21latency_hist09:20:011
3127983993425,4cyclictest0-21swapper/111:35:151
3127983993423,7cyclictest0-21swapper/109:45:251
3127979993425,5cyclictest0-21swapper/012:34:590
3127992993322,8cyclictest3222108-21tr11:40:003
3127988993326,3cyclictest0-21swapper/207:25:162
3127988993326,3cyclictest0-21swapper/207:25:162
3127988993325,4cyclictest3214631-21unixbench_singl11:15:252
3127988993325,4cyclictest0-21swapper/211:50:252
3127988993323,7cyclictest311ktimers/207:40:132
3127988993323,4cyclictest131rcu_preempt10:35:202
3127988993318,7cyclictest3192384-21kworker/u8:2+events_unbound10:33:302
3127988993313,5cyclictest131rcu_preempt08:30:262
3127988993313,4cyclictest131rcu_preempt11:30:272
3127983993320,9cyclictest3218528-21apt-key11:30:001
3127979993323,6cyclictest3235941-21cron12:20:010
3127979993321,8cyclictest0-21swapper/010:20:000
3127992993224,4cyclictest0-21swapper/308:35:003
3127992993224,4cyclictest0-21swapper/308:20:253
3127992993221,7cyclictest3143644-21grep07:50:253
312798899328,15cyclictest32-21ksoftirqd/208:55:192
3127988993223,5cyclictest3155530-21grep08:25:242
3127988993221,7cyclictest311ktimers/210:15:222
3127988993217,8cyclictest3183532-21kworker/u8:3+events_unbound09:56:282
3127988993216,5cyclictest131rcu_preempt10:00:012
3127988993213,9cyclictest131rcu_preempt09:45:112
3127988993212,4cyclictest131rcu_preempt12:02:032
3127983993224,4cyclictest0-21swapper/110:25:261
3127983993224,4cyclictest0-21swapper/110:25:261
3127983993221,7cyclictest0-21swapper/107:20:001
3127992993123,5cyclictest0-21swapper/312:05:243
3127992993123,4cyclictest0-21swapper/308:05:153
3127992993123,4cyclictest0-21swapper/307:40:153
312798899318,10cyclictest131rcu_preempt07:23:462
3127988993123,6cyclictest3223495-21kworker/u8:3+events_unbound12:28:422
3127988993123,4cyclictest0-21swapper/210:05:172
3127988993121,7cyclictest3202489-21grep10:40:232
3127988993121,7cyclictest311ktimers/211:55:262
3127988993120,4cyclictest131rcu_preempt07:30:152
3127988993119,5cyclictest131rcu_preempt11:37:142
3127988993118,5cyclictest131rcu_preempt09:40:172
3127988993118,5cyclictest131rcu_preempt09:40:162
3127988993114,9cyclictest131rcu_preempt09:05:232
3127988993113,5cyclictest131rcu_preempt07:50:262
3127988993112,11cyclictest131rcu_preempt07:55:212
3127988993111,4cyclictest131rcu_preempt09:25:212
3127983993123,4cyclictest0-21swapper/111:00:271
3127983993123,4cyclictest0-21swapper/110:15:001
3127983993121,7cyclictest3145365-21unixbench_singl07:55:241
3127983993121,7cyclictest0-21swapper/108:40:241
312798399311,9cyclictest3129056-21timerwakeupswit07:10:271
312797999313,5cyclictest131rcu_preempt11:55:130
3127979993124,5cyclictest3216567-21kworker/u8:0+events_unbound11:39:390
3127979993123,4cyclictest3197808-21munin-plugin-st10:30:000
3127979993123,4cyclictest3197808-21munin-plugin-st10:30:000
3127979993119,8cyclictest0-21swapper/009:00:010
3127992993023,3cyclictest0-21swapper/310:55:253
3127992993021,6cyclictest3131489-21grep07:15:253
3127992993020,7cyclictest3136771-21grep07:30:263
312798899308,12cyclictest131rcu_preempt12:10:232
3127988993023,4cyclictest311ktimers/212:21:082
3127988993022,3cyclictest0-21swapper/211:00:012
3127988993019,3cyclictest131rcu_preempt10:50:182
3127988993014,9cyclictest131rcu_preempt08:10:112
3127988993014,5cyclictest131rcu_preempt08:45:252
3127988993011,4cyclictest0-21swapper/211:45:222
3127988993010,5cyclictest131rcu_preempt09:15:192
3127983993023,4cyclictest0-21swapper/111:15:251
3127983993018,7cyclictest0-21swapper/111:10:241
3127979993024,4cyclictest0-21swapper/010:30:120
3127979993023,3cyclictest0-21swapper/007:54:110
3127979993022,4cyclictest0-21swapper/010:55:000
3127979993014,5cyclictest121ktimers/007:35:000
3127992992921,5cyclictest0-21swapper/308:50:013
3127992992921,4cyclictest0-21swapper/311:25:233
3127992992918,7cyclictest0-21swapper/307:10:263
3127988992922,5cyclictest3223495-21kworker/u8:3+events_unbound12:07:142
3127988992921,4cyclictest3234660-21fschecks_time12:15:152
3127988992917,4cyclictest131rcu_preempt10:27:032
3127988992917,4cyclictest131rcu_preempt10:27:022
3127988992911,4cyclictest131rcu_preempt09:00:212
3127988992910,4cyclictest131rcu_preempt10:45:192
3127983992922,5cyclictest3183532-21kworker/u8:3+events_unbound10:04:321
3127983992922,4cyclictest0-21swapper/111:20:251
3127983992922,4cyclictest0-21swapper/107:35:271
3127983992921,4cyclictest0-21swapper/112:30:161
3127983992919,7cyclictest0-21swapper/110:15:251
3127983992919,7cyclictest0-21swapper/110:00:001
3127979992923,4cyclictest3207793-21kworker/u8:1+events_unbound11:00:120
3127979992923,3cyclictest3201204-21kthreadd10:40:000
3127979992922,4cyclictest0-21swapper/011:50:010
3127979992917,7cyclictest3169237-21wc09:05:240
312798899289,12cyclictest32-21ksoftirqd/207:10:262
3127983992821,5cyclictest3155911-21kworker/u8:1+events_unbound08:30:071
3127983992821,4cyclictest0-21swapper/109:20:161
3127983992819,5cyclictest0-21swapper/107:25:151
3127983992819,5cyclictest0-21swapper/107:25:151
3127983992818,7cyclictest3141899-21unixbench_multi07:45:251
3127983992816,8cyclictest3169170-21ntpq09:05:221
312797999283,5cyclictest131rcu_preempt10:10:110
3127979992822,4cyclictest3157329-21timerandwakeup08:30:250
3127992992720,5cyclictest3187138-21munin-run10:00:013
3127992992720,4cyclictest0-21swapper/311:55:253
3127992992718,6cyclictest0-21swapper/309:00:013
312799299271,10cyclictest3194176-21munin-run10:20:003
3127983992719,5cyclictest0-21swapper/110:30:261
3127983992718,6cyclictest0-21swapper/108:00:221
3127983992717,7cyclictest0-21swapper/111:35:011
3127979992719,6cyclictest3176683-21kworker/u8:0+events_unbound09:49:320
3127979992718,5cyclictest0-21swapper/011:15:260
3127979992717,7cyclictest3129605-21sh07:15:000
3127979992717,7cyclictest0-21swapper/009:35:160
3127979992716,8cyclictest204-21dbus-daemon07:39:080
3127979992715,8cyclictest204-21dbus-daemon09:24:250
3127992992620,4cyclictest3201142-21kworker/u8:2-ext4-rsv-conversion10:55:023
3127992992620,3cyclictest0-21swapper/310:30:253
3127992992620,3cyclictest0-21swapper/308:00:163
3127992992619,3cyclictest0-21swapper/310:40:213
3127992992616,7cyclictest391ktimers/312:30:123
3127983992620,3cyclictest0-21swapper/112:10:231
3127983992619,5cyclictest3156084-21latency_hist08:30:021
3127983992616,6cyclictest0-21swapper/112:20:001
3127983992614,7cyclictest0-21swapper/108:05:241
312797999264,4cyclictest0-21swapper/010:20:130
312797999264,4cyclictest0-21swapper/010:20:120
312797999262,4cyclictest131rcu_preempt08:00:130
3127979992620,3cyclictest32132152chrt11:13:310
3127979992620,3cyclictest13550irq/42-30be0000.ethernet08:50:220
3127979992620,3cyclictest0-21swapper/009:15:240
3127979992619,4cyclictest0-21swapper/007:55:240
3127979992618,5cyclictest3183532-21kworker/u8:3+events_unbound09:59:120
3127979992617,5cyclictest0-21swapper/012:10:010
3127979992617,5cyclictest0-21swapper/011:35:000
312799299255,4cyclictest3134055-21sh07:25:033
312799299255,4cyclictest3134055-21sh07:25:023
3127992992519,3cyclictest0-21swapper/309:40:013
3127992992518,4cyclictest3178610-21kthreadd09:35:003
3127992992518,3cyclictest0-21swapper/311:40:143
3127992992517,4cyclictest0-21swapper/312:35:163
3127992992517,4cyclictest0-21swapper/312:35:153
3127992992515,7cyclictest391ktimers/308:10:133
3127992992515,7cyclictest3233815-21grep12:10:253
3127992992514,8cyclictest3215656-21cut11:20:183
3127983992519,4cyclictest3149161-21kworker/u8:1+events_unbound08:15:191
3127983992518,5cyclictest3201142-21kworker/u8:2+events_unbound10:44:331
3127983992517,5cyclictest0-21swapper/110:55:201
3127983992517,5cyclictest0-21swapper/108:20:251
3127983992517,4cyclictest0-21swapper/112:10:021
3127983992517,4cyclictest0-21swapper/107:50:251
3127983992516,6cyclictest0-21swapper/111:40:231
3127983992514,6cyclictest0-21swapper/108:50:241
312797999253,18cyclictest0-21swapper/008:17:370
3127979992518,5cyclictest121ktimers/011:50:120
3127979992518,4cyclictest3204189-21unixbench_singl10:45:250
3127979992518,4cyclictest3148250-21ntpq08:05:200
3127979992518,4cyclictest0-21swapper/012:20:240
3127979992516,6cyclictest0-21swapper/011:00:000
312797999251,5cyclictest3215421-21df_inode11:20:140
3127979992514,9cyclictest121ktimers/007:15:120
3127992992418,3cyclictest0-21swapper/312:00:243
3127992992418,3cyclictest0-21swapper/310:10:173
3127992992415,7cyclictest391ktimers/310:20:063
3127992992415,7cyclictest391ktimers/310:20:053
3127992992415,5cyclictest0-21swapper/309:00:263
3127983992416,4cyclictest0-21swapper/111:50:251
3127983992416,4cyclictest0-21swapper/109:34:281
3127983992416,4cyclictest0-21swapper/108:59:231
3127983992415,6cyclictest0-21swapper/109:00:201
3127983992415,5cyclictest0-21swapper/110:45:201
3127983992413,7cyclictest0-21swapper/107:20:261
3127979992418,4cyclictest3237461-21kworker/u8:0+events_unbound12:28:310
3127979992418,3cyclictest0-21swapper/008:20:180
3127979992418,3cyclictest0-21swapper/008:15:020
3127979992417,5cyclictest0-21swapper/011:30:000
3127979992417,4cyclictest3156018-21idleruntime-cro08:30:000
3127979992417,4cyclictest13550irq/42-30be0000.ethernet09:10:250
3127979992415,6cyclictest3167096-21uniq09:00:170
312797999241,19cyclictest3176497-21grep09:25:250
312797999241,19cyclictest0-21swapper/010:05:060
312797999241,19cyclictest0-21swapper/007:22:230
3127992992317,3cyclictest0-21swapper/309:20:223
3127992992317,3cyclictest0-21swapper/309:15:253
3127992992317,3cyclictest0-21swapper/307:40:003
3127992992316,4cyclictest3212935-21head11:10:253
3127992992315,5cyclictest391ktimers/311:30:223
3127992992315,5cyclictest0-21swapper/307:45:263
3127992992315,4cyclictest0-21swapper/312:19:423
3127992992314,6cyclictest0-21swapper/308:50:203
3127983992316,3cyclictest0-21swapper/110:05:161
3127983992312,7cyclictest0-21swapper/108:40:001
3127983992311,8cyclictest0-21swapper/109:45:001
3127983992311,8cyclictest0-21swapper/109:45:001
3127983992310,9cyclictest204-21dbus-daemon10:24:311
3127983992310,9cyclictest204-21dbus-daemon10:24:301
3127979992318,3cyclictest3129585-21kworker/u8:0-ext4-rsv-conversion07:40:020
3127979992316,5cyclictest0-21swapper/010:43:260
3127979992316,3cyclictest13550irq/42-30be0000.ethernet12:10:240
3127979992313,8cyclictest121ktimers/007:25:110
3127979992313,8cyclictest121ktimers/007:25:110
312797999231,18cyclictest0-21swapper/008:47:340
312797999230,21cyclictest0-21swapper/011:40:140
3127992992216,3cyclictest0-21swapper/310:50:013
3127992992216,3cyclictest0-21swapper/308:25:253
3127992992215,4cyclictest0-21swapper/309:45:243
3127992992214,5cyclictest3194103-21kworker/u8:0+events_unbound10:35:183
3127992992214,5cyclictest0-21swapper/308:40:243
3127992992213,6cyclictest0-21swapper/308:35:253
3127992992211,7cyclictest0-21swapper/312:25:253
3127992992210,9cyclictest391ktimers/310:25:143
3127992992210,9cyclictest391ktimers/310:25:133
3127983992216,3cyclictest0-21swapper/111:45:251
3127983992216,3cyclictest0-21swapper/109:50:241
3127983992215,4cyclictest0-21swapper/109:35:251
3127983992213,6cyclictest3241433-21fschecks_count12:35:151
3127983992213,6cyclictest3241433-21fschecks_count12:35:151
3127979992217,3cyclictest0-21swapper/007:45:210
3127979992216,3cyclictest0-21swapper/009:30:180
312797999221,3cyclictest0-21swapper/009:40:140
312797999221,3cyclictest0-21swapper/009:40:140
3127992992115,3cyclictest0-21swapper/311:45:223
3127992992115,3cyclictest0-21swapper/309:05:273
3127992992113,5cyclictest391ktimers/308:20:023
3127983992115,4cyclictest3223495-21kworker/u8:3+events_unbound11:57:111
3127983992111,7cyclictest3136764-21grep07:30:271
3127983992110,8cyclictest3239377-21basename12:30:011
3127992992014,3cyclictest0-21swapper/311:15:163
3127992992014,3cyclictest0-21swapper/309:25:243
3127992992013,5cyclictest391ktimers/309:55:003
3127992992012,6cyclictest487-21sendmail-mta10:08:223
3127983992012,5cyclictest231ktimers/109:10:221
3127992991914,3cyclictest3187396-21apt-key10:00:013
3127992991912,3cyclictest0-21swapper/307:55:243
3127983991913,3cyclictest3149421-21apt-get08:10:111
3127983991913,3cyclictest0-21swapper/111:05:261
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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