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2026-07-08 - 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 highest latencies:
System rackbslot5s.osadl.org (updated Wed Jul 08, 2026 12:44:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1828646995246,4cyclictest1915160-21kworker/u8:1+events_unbound11:19:000
1828658994838,7cyclictest1924669-21fschecks_count11:45:153
1828655994831,10cyclictest1903149-21kworker/u8:3+events_unbound11:03:552
1828658994638,5cyclictest1832592-21idleruntime-cro07:20:023
1828658994635,7cyclictest1922072-21grep11:35:233
1828646994438,4cyclictest1877079-21kworker/u8:2+events_unbound09:33:380
1828646994437,4cyclictest1839409-21munin-plugin-st07:40:020
1828646994433,7cyclictest1918473-21grep11:25:250
1828655994334,6cyclictest1937495-21grep12:20:252
1828655994334,6cyclictest1937495-21grep12:20:252
1828650994336,4cyclictest1917228-21cron11:25:001
1828646994337,4cyclictest1884541-21kworker/u8:0+events_unbound09:53:410
1828650994234,5cyclictest1884562-21fschecks_count09:50:141
1828646994236,4cyclictest1847992-21kworker/u8:1+events_unbound08:08:230
1828646994230,7cyclictest1904874-21munin-run10:50:000
1828646994219,5cyclictest1937554-21kworker/u8:0-events_freezable_power_12:37:100
1828646994122,11cyclictest204-21dbus-daemon09:03:320
1828646994122,11cyclictest204-21dbus-daemon09:03:320
1828646994120,11cyclictest0-21swapper/009:24:590
1828646994119,17cyclictest121ktimers/011:00:000
1828658994029,8cyclictest391ktimers/308:35:133
1828658994028,8cyclictest1892703-21cron10:15:003
1828655994034,4cyclictest1847992-21kworker/u8:1+events_unbound08:06:402
1828646994032,4cyclictest0-21swapper/009:00:000
1828646994027,4cyclictest131rcu_preempt11:53:090
1828646994023,9cyclictest131rcu_preempt08:20:200
1828655993922,4cyclictest1894120-21kworker/u8:1+events_unbound10:20:202
1828646993932,5cyclictest1927605-21kworker/u8:1+events_unbound12:00:410
1828658993832,4cyclictest1939273-21kworker/u8:1+events_unbound12:29:183
1828658993828,6cyclictest0-21swapper/307:25:163
1828658993827,7cyclictest0-21swapper/310:20:013
1828655993831,5cyclictest1887107-21kworker/u8:1+events_unbound10:00:252
1828655993823,6cyclictest1851461-21kworker/u8:1+events_unbound08:20:182
1828646993832,4cyclictest1908229-21kworker/u8:0+events_unbound11:00:420
1828646993832,4cyclictest1854956-21kworker/u8:0+events_unbound08:33:280
1828646993826,5cyclictest131rcu_preempt12:22:390
1828646993826,5cyclictest131rcu_preempt12:22:380
1828646993824,5cyclictest131rcu_preempt11:07:510
1828646993819,11cyclictest0-21swapper/011:20:550
1828646993818,9cyclictest131rcu_preempt10:33:340
1828646993818,9cyclictest131rcu_preempt10:33:340
1828646993818,3cyclictest0-21swapper/009:29:100
1828658993729,4cyclictest0-21swapper/310:50:253
1828658993726,8cyclictest1854572-21head08:20:253
1828658993726,7cyclictest0-21swapper/312:05:243
1828655993731,4cyclictest1828471-21kworker/u8:0+events_unbound07:15:252
1828655993728,6cyclictest1828950-21fschecks_count07:10:162
1828655993727,6cyclictest0-21swapper/209:20:252
1828650993731,4cyclictest1927605-21kworker/u8:1+events_unbound12:19:151
1828646993731,4cyclictest1908229-21kworker/u8:0+events_unbound11:49:070
1828646993727,6cyclictest1939611-21cron12:29:590
1828646993723,4cyclictest131rcu_preempt11:11:590
1828658993626,6cyclictest0-21swapper/308:30:003
1828650993623,9cyclictest0-21swapper/109:40:411
1828646993624,6cyclictest0-21swapper/007:15:280
1828646993619,4cyclictest131rcu_preempt07:55:170
1828646993618,9cyclictest131rcu_preempt08:12:580
1828646993615,4cyclictest131rcu_preempt07:13:130
1828646993614,11cyclictest131rcu_preempt08:40:570
1828646993613,4cyclictest131rcu_preempt10:15:250
1828658993527,4cyclictest1908260-21cron11:00:003
1828658993526,6cyclictest0-21swapper/309:25:023
1828658993525,6cyclictest0-21swapper/309:05:153
1828658993525,6cyclictest0-21swapper/309:05:153
1828658993515,5cyclictest1865214-21kworker/u8:1+events_unbound08:58:133
1828655993528,5cyclictest1877079-21kworker/u8:2+events_unbound09:30:252
1828655993527,6cyclictest1858255-21kworker/u8:1+events_unbound08:45:202
1828655993526,6cyclictest1884610-21fschecks_time09:50:152
1828655993518,6cyclictest1826749-21kworker/u8:2+events_unbound07:40:572
1828650993527,5cyclictest1939625-21munin-plugin-st12:29:591
1828650993525,5cyclictest1904859-21cron10:50:001
1828646993524,4cyclictest131rcu_preempt09:37:220
1828646993521,4cyclictest131rcu_preempt07:40:080
1828646993520,4cyclictest131rcu_preempt08:18:570
1828646993519,5cyclictest131rcu_preempt10:51:180
1828646993518,4cyclictest131rcu_preempt11:35:070
1828658993424,6cyclictest0-21swapper/312:19:593
1828655993426,4cyclictest0-21swapper/211:55:252
1828655993426,4cyclictest0-21swapper/210:44:592
1828655993426,4cyclictest0-21swapper/207:20:272
1828655993424,7cyclictest1876920-21grep09:25:272
1828655993424,6cyclictest0-21swapper/211:45:262
1828655993424,6cyclictest0-21swapper/211:15:002
1828650993426,6cyclictest1875307-21kworker/u8:0+events_unbound09:23:361
1828650993426,4cyclictest0-21swapper/108:30:131
1828646993423,5cyclictest131rcu_preempt07:20:200
1828646993420,4cyclictest131rcu_preempt10:09:280
1828646993415,5cyclictest131rcu_preempt09:40:170
1828646993414,9cyclictest131rcu_preempt10:24:380
1828646993414,10cyclictest131rcu_preempt12:16:150
1828658993327,4cyclictest1877079-21kworker/u8:2+events_unbound09:38:413
1828658993326,5cyclictest1870511-21kworker/u8:2+events_unbound09:13:353
1828658993326,4cyclictest1846434-21kthreadd08:00:003
1828658993323,6cyclictest0-21swapper/310:00:003
1828658993323,6cyclictest0-21swapper/308:30:133
1828658993323,6cyclictest0-21swapper/307:50:013
1828658993320,6cyclictest1913231-21kworker/u8:2+events_unbound11:15:033
182865899331,14cyclictest0-21swapper/312:10:103
1828655993326,4cyclictest1828640-21cyclictest12:19:142
1828655993326,4cyclictest0-21swapper/208:50:162
1828655993323,6cyclictest0-21swapper/211:40:262
1828655993323,6cyclictest0-21swapper/210:15:242
1828655993318,5cyclictest1826749-21kworker/u8:2+events_unbound07:25:182
182865599331,15cyclictest1905424-21/usr/sbin/munin10:50:172
1828650993325,4cyclictest0-21swapper/111:55:151
1828650993324,6cyclictest1920841-21cron11:35:001
1828650993323,7cyclictest1880300-21unixbench_multi09:35:271
1828650993321,7cyclictest0-21swapper/107:50:011
182864699338,20cyclictest121ktimers/010:35:240
1828646993323,6cyclictest1870548-21munin-plugin-st09:10:000
1828646993323,6cyclictest1870548-21munin-plugin-st09:10:000
1828646993320,3cyclictest131rcu_preempt07:10:010
1828646993319,4cyclictest131rcu_preempt12:06:390
1828646993319,4cyclictest131rcu_preempt07:31:070
1828646993318,4cyclictest131rcu_preempt09:46:530
1828646993315,5cyclictest131rcu_preempt08:26:250
1828646993315,11cyclictest131rcu_preempt11:30:230
1828646993315,10cyclictest131rcu_preempt11:57:260
1828646993314,4cyclictest131rcu_preempt12:31:390
1828646993310,6cyclictest131rcu_preempt07:25:150
1828658993223,4cyclictest0-21swapper/310:05:253
1828658993216,9cyclictest1833942-21kworker/u8:1-flush-179:9607:35:063
1828655993225,5cyclictest1882368-21kworker/u8:1+events_unbound09:45:142
1828655993225,4cyclictest1851549-21cron08:15:022
1828655993223,6cyclictest0-21swapper/211:10:012
1828655993222,6cyclictest0-21swapper/210:35:232
1828650993226,4cyclictest1865214-21kworker/u8:1+events_unbound09:03:321
1828650993226,4cyclictest1865214-21kworker/u8:1+events_unbound09:03:321
1828650993222,6cyclictest0-21swapper/108:40:251
182864699328,17cyclictest131rcu_preempt08:50:170
1828646993219,5cyclictest131rcu_preempt08:00:590
1828646993218,4cyclictest131rcu_preempt11:44:450
1828646993214,4cyclictest131rcu_preempt09:58:230
1828646993214,10cyclictest131rcu_preempt10:10:330
1828646993212,5cyclictest131rcu_preempt10:40:130
1828646993211,4cyclictest131rcu_preempt08:39:150
1828658993124,5cyclictest1828471-21kworker/u8:0+events_unbound07:13:123
1828658993120,7cyclictest0-21swapper/308:40:153
1828655993123,4cyclictest0-21swapper/211:50:242
1828655993121,7cyclictest1907800-21grep10:55:262
1828650993123,5cyclictest1828471-21kworker/u8:0+events_unbound07:10:241
1828650993121,6cyclictest0-21swapper/110:35:231
1828650993121,6cyclictest0-21swapper/107:20:261
1828650993121,5cyclictest0-21swapper/108:45:261
1828650993120,7cyclictest0-21swapper/110:55:001
182865099311,3cyclictest0-21swapper/111:00:111
1828646993115,9cyclictest131rcu_preempt10:25:160
1828646993114,5cyclictest131rcu_preempt10:05:010
1828658993023,5cyclictest1901054-21kworker/u8:1+events_unbound10:43:533
1828658993020,6cyclictest0-21swapper/311:40:253
1828655993021,6cyclictest0-21swapper/212:35:142
1828655993021,6cyclictest0-21swapper/210:30:012
1828655993019,8cyclictest1868833-21sh09:05:002
1828655993019,8cyclictest1868833-21sh09:05:002
1828655993019,7cyclictest1922073-21grep11:35:222
182865099303,5cyclictest131rcu_preempt11:10:111
1828650993022,4cyclictest0-21swapper/109:00:011
1828650993021,5cyclictest0-21swapper/107:35:021
1828650993021,4cyclictest0-21swapper/108:20:161
1828650993020,6cyclictest0-21swapper/111:19:591
1828650993018,8cyclictest0-21swapper/108:00:251
1828646993012,4cyclictest131rcu_preempt09:10:130
1828658992922,5cyclictest1934734-21kworker/u8:2+events_unbound12:20:193
1828658992922,5cyclictest1934734-21kworker/u8:2+events_unbound12:20:183
1828658992921,5cyclictest0-21swapper/311:10:023
1828658992921,4cyclictest0-21swapper/308:10:263
1828655992922,5cyclictest1839032-21kworker/u8:0+events_unbound07:52:392
1828655992922,4cyclictest0-21swapper/207:45:272
1828655992921,5cyclictest1879519-21fschecks_time09:35:162
1828655992921,4cyclictest0-21swapper/211:20:242
1828655992921,4cyclictest0-21swapper/208:35:252
1828655992919,6cyclictest0-21swapper/211:25:252
1828655992919,6cyclictest0-21swapper/208:30:132
1828655992915,8cyclictest32-21ksoftirqd/209:40:342
1828650992919,6cyclictest0-21swapper/111:30:001
1828650992919,6cyclictest0-21swapper/110:30:151
1828650992919,6cyclictest0-21swapper/110:30:141
1828650992917,7cyclictest0-21swapper/111:45:251
1828650992916,5cyclictest1865214-21kworker/u8:1+events_unbound09:13:581
1828646992923,4cyclictest1839032-21kworker/u8:0+events_unbound07:46:410
1828646992913,4cyclictest131rcu_preempt08:47:500
1828658992822,4cyclictest1897844-21munin-run10:30:003
1828658992822,4cyclictest1865214-21kworker/u8:1+events_unbound09:18:363
1828658992822,4cyclictest1826749-21kworker/u8:2+events_unbound07:41:003
1828658992820,4cyclictest0-21swapper/310:48:523
1828658992818,6cyclictest0-21swapper/309:25:263
1828658992816,9cyclictest391ktimers/308:00:113
182865899281,4cyclictest131rcu_preempt11:20:113
182865899281,4cyclictest131rcu_preempt09:00:143
182865899281,4cyclictest131rcu_preempt09:00:133
1828655992821,4cyclictest0-21swapper/212:30:252
1828655992820,5cyclictest1908229-21kworker/u8:0+events_unbound11:30:202
182865099283,5cyclictest131rcu_preempt07:50:121
1828658992721,4cyclictest1895849-21kworker/u8:0+events_unbound10:30:413
1828658992721,4cyclictest1895849-21kworker/u8:0+events_unbound10:30:413
1828658992721,3cyclictest0-21swapper/308:05:203
1828658992719,5cyclictest0-21swapper/308:50:263
1828658992717,7cyclictest1877742-21fschecks_count09:30:173
1828655992719,5cyclictest0-21swapper/210:00:012
1828655992712,4cyclictest1865286-21kworker/u8:3+events_unbound08:55:032
1828650992720,4cyclictest0-21swapper/112:20:261
1828650992720,4cyclictest0-21swapper/112:20:251
1828650992719,4cyclictest0-21swapper/107:15:271
1828650992716,7cyclictest1835994-21cron07:30:021
1828650992716,7cyclictest0-21swapper/109:55:161
1828650992715,9cyclictest1895849-21kworker/u8:0+events_unbound10:25:121
1828658992619,4cyclictest0-21swapper/308:50:003
1828658992616,6cyclictest0-21swapper/310:40:013
182865899261,4cyclictest131rcu_preempt09:40:123
1828655992618,5cyclictest1892395-21kworker/u8:2+events_unbound10:45:212
1828655992617,6cyclictest0-21swapper/207:55:262
1828655992614,9cyclictest32-21ksoftirqd/209:10:012
1828655992614,9cyclictest32-21ksoftirqd/209:10:012
1828650992620,3cyclictest0-21swapper/111:50:191
1828650992620,3cyclictest0-21swapper/109:30:261
1828650992619,5cyclictest1937554-21kworker/u8:0+events_unbound12:37:131
1828650992619,4cyclictest0-21swapper/112:00:251
1828650992618,4cyclictest0-21swapper/112:30:151
1828650992617,5cyclictest0-21swapper/109:30:001
1828650992616,6cyclictest0-21swapper/108:05:151
1828650992615,8cyclictest1853263-21latency_hist08:20:011
1828650992612,6cyclictest1849749-21kworker/u8:2+events_unbound08:14:161
182865899257,7cyclictest131rcu_preempt11:25:243
1828658992517,4cyclictest0-21swapper/309:50:013
1828658992512,5cyclictest1894120-21kworker/u8:1+events_unbound10:20:323
182865599257,3cyclictest131rcu_preempt12:10:112
1828655992519,4cyclictest1908229-21kworker/u8:0+events_unbound12:01:032
1828655992519,4cyclictest1892395-21kworker/u8:2+events_unbound10:33:412
1828655992519,4cyclictest1892395-21kworker/u8:2+events_unbound10:33:402
1828655992516,6cyclictest0-21swapper/207:35:252
1828655992516,5cyclictest0-21swapper/209:10:222
182865599251,5cyclictest1890540-21unixbench_multi10:05:252
1828655992513,5cyclictest1892395-21kworker/u8:2+events_unbound10:12:532
1828655992512,11cyclictest32-21ksoftirqd/211:15:252
182865599251,12cyclictest0-21swapper/208:17:012
1828650992519,3cyclictest0-21swapper/110:20:131
1828650992518,5cyclictest1858255-21kworker/u8:1+events_unbound08:38:261
1828650992516,6cyclictest1922075-21unixbench_multi11:35:221
1828650992516,5cyclictest0-21swapper/110:05:161
1828650992516,4cyclictest0-21swapper/110:10:161
1828650992515,6cyclictest0-21swapper/110:20:001
1828650992515,5cyclictest1888829-21grep10:00:251
1828658992417,5cyclictest1937554-21kworker/u8:0+events_unbound12:37:083
182865899241,6cyclictest1940880-21unixbench_singl12:30:243
1828658992416,5cyclictest1924073-21kworker/u8:2+events_unbound11:55:223
1828658992415,6cyclictest0-21swapper/307:20:123
182865899240,6cyclictest1908659-21fschecks_count11:00:143
182865599242,10cyclictest946764-21kworker/2:1-mm_percpu_wq12:26:162
1828655992418,3cyclictest0-21swapper/208:30:012
1828655992417,5cyclictest1865214-21kworker/u8:1+events_unbound09:15:242
1828655992413,3cyclictest32-21ksoftirqd/208:00:232
1828650992418,4cyclictest1903149-21kworker/u8:3+events_unbound10:56:021
1828650992418,3cyclictest0-21swapper/111:05:161
1828650992416,4cyclictest1865408-21cron08:55:011
182865099241,5cyclictest131rcu_preempt07:55:131
1828658992317,4cyclictest1908229-21kworker/u8:0+events_unbound11:30:193
1828658992317,4cyclictest0-21swapper/307:50:143
1828658992317,3cyclictest0-21swapper/307:30:163
1828658992315,4cyclictest0-21swapper/311:10:163
182865899230,14cyclictest131rcu_preempt11:55:003
182865599231,11cyclictest0-21swapper/208:40:172
1828650992317,3cyclictest0-21swapper/109:45:251
1828650992314,6cyclictest0-21swapper/109:20:001
182865899226,9cyclictest131rcu_preempt10:02:413
1828658992215,5cyclictest1884541-21kworker/u8:0+events_unbound09:53:013
1828658992214,5cyclictest1931084-21cron12:05:013
182865099225,7cyclictest131rcu_preempt12:10:221
182865099225,7cyclictest131rcu_preempt12:05:241
182865099222,6cyclictest0-21swapper/107:35:251
1828650992216,4cyclictest1839032-21kworker/u8:0+events_unbound07:43:181
1828650992215,5cyclictest1865214-21kworker/u8:1+events_unbound09:05:181
1828650992215,5cyclictest1865214-21kworker/u8:1+events_unbound09:05:181
1828650992214,6cyclictest1922937-21forks11:40:151
182865099221,12cyclictest1901936-21/usr/sbin/munin10:40:151
1828658992116,3cyclictest0-21swapper/308:15:133
1828650992115,4cyclictest0-21swapper/108:25:251
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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