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2026-07-21 - 06:15

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 Tue Jul 21, 2026 00:44:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1583015995239,6cyclictest1686505-21kworker/u8:1+events_unbound00:12:561
1583015995239,6cyclictest1686505-21kworker/u8:1+events_unbound00:12:551
1583015994837,8cyclictest1689648-21grep00:15:251
1583024994430,11cyclictest391ktimers/300:25:133
1583011994438,4cyclictest1652005-21kworker/u8:2+events_unbound22:52:480
1583020994336,4cyclictest1652403-21auditctl22:29:592
1583024994234,4cyclictest1662618-21cron23:00:013
1583024994233,6cyclictest1614465-21sendmail20:40:003
1583011994234,5cyclictest1600598-21munin-plugin-st20:00:010
1583024994134,4cyclictest1592068-21cron19:35:013
1583024994131,6cyclictest208-21systemd-logind22:27:463
1583024994030,7cyclictest1628109-21sh21:20:013
1583015994034,4cyclictest1650504-21munin-plugin-st22:25:011
1583015994030,6cyclictest0-21swapper/120:50:251
1583024993933,4cyclictest1617727-21kworker/u8:2+events_unbound21:32:423
1583015993932,4cyclictest1600613-21sendmail20:00:001
1583015993930,6cyclictest1663877-21unixbench_multi23:00:261
1583011993932,5cyclictest1609030-21kworker/u8:1+events_unbound20:52:340
1583011993930,5cyclictest1-21systemd20:12:160
1583011993918,5cyclictest131rcu_preempt22:15:120
1583024993829,6cyclictest1686035-21grep00:05:243
1583015993831,5cyclictest1652005-21kworker/u8:2+events_unbound22:27:461
1583011993832,4cyclictest1672497-21kworker/u8:2+events_unbound23:47:500
1583024993727,6cyclictest0-21swapper/323:25:003
1583020993731,3cyclictest0-21swapper/221:59:592
1583020993729,5cyclictest0-21swapper/222:25:002
1583015993730,5cyclictest1609030-21kworker/u8:1+events_unbound20:32:311
1583015993730,5cyclictest1609030-21kworker/u8:1+events_unbound20:32:311
1583015993727,6cyclictest0-21swapper/100:20:271
1583015993725,7cyclictest0-21swapper/122:00:251
1583015993716,5cyclictest131rcu_preempt00:00:111
1583011993728,4cyclictest0-21swapper/019:20:250
1583011993727,7cyclictest121ktimers/019:25:150
1583011993716,17cyclictest0-21swapper/020:30:010
1583024993628,5cyclictest0-21swapper/320:45:003
1583024993627,6cyclictest0-21swapper/321:15:023
1583020993629,4cyclictest0-21swapper/221:45:002
1583015993628,5cyclictest1604010-21sh20:10:011
1583015993625,7cyclictest0-21swapper/120:15:021
1583015993624,7cyclictest0-21swapper/119:35:261
1583015993624,7cyclictest0-21swapper/119:35:251
1583011993630,4cyclictest1694924-21kworker/u8:3+events_unbound00:37:580
1583011993628,6cyclictest13850irq/36-mmc121:20:010
1583024993528,5cyclictest1596876-21kworker/u8:2+events_unbound19:57:143
1583024993527,4cyclictest0-21swapper/321:40:013
1583024993526,7cyclictest438-21cron19:20:003
1583020993528,4cyclictest0-21swapper/223:25:002
1583020993526,6cyclictest1586547-21unixbench_singl19:15:272
1583020993526,5cyclictest0-21swapper/221:05:012
1583020993525,7cyclictest438-21cron23:30:002
1583020993525,7cyclictest438-21cron23:30:002
1583020993525,6cyclictest0-21swapper/222:30:252
1583015993525,6cyclictest0-21swapper/122:00:001
1583011993529,4cyclictest1617727-21kworker/u8:2+events_unbound21:12:400
158301199350,8cyclictest11-21ksoftirqd/022:00:130
1583024993424,6cyclictest0-21swapper/322:50:273
1583020993424,8cyclictest0-21swapper/223:00:142
1583020993424,6cyclictest0-21swapper/223:50:272
1583015993422,7cyclictest0-21swapper/121:40:171
1583015993414,8cyclictest1598755-21kworker/u8:3+events_unbound20:18:061
158301599341,13cyclictest24-21ksoftirqd/123:55:111
1583011993426,4cyclictest0-21swapper/022:35:260
1583011993425,6cyclictest0-21swapper/021:00:000
158301199341,8cyclictest11-21ksoftirqd/020:20:130
1583020993326,4cyclictest0-21swapper/222:15:012
1583020993324,6cyclictest1629815-21cron21:25:012
1583020993323,6cyclictest1614464-21sendmail20:39:592
1583020993323,6cyclictest0-21swapper/219:45:012
1583015993327,4cyclictest1595149-21kworker/u8:0+events_unbound19:42:111
1583015993326,3cyclictest0-21swapper/100:25:251
1583015993325,4cyclictest0-21swapper/121:00:261
1583015993325,4cyclictest0-21swapper/119:10:151
1583015993324,6cyclictest1646854-21cron22:15:011
1583015993322,7cyclictest0-21swapper/123:30:261
1583015993322,7cyclictest0-21swapper/123:30:261
1583015993322,6cyclictest0-21swapper/123:40:231
1583015993316,5cyclictest1652005-21kworker/u8:2+events_unbound22:35:391
158301199332,8cyclictest11-21ksoftirqd/000:10:130
158301199332,8cyclictest11-21ksoftirqd/000:10:120
1583011993327,4cyclictest1664317-21kworker/u8:1+events_unbound23:12:490
1583011993314,12cyclictest204-21dbus-daemon21:37:410
1583024993225,4cyclictest1690132-21kthreadd00:20:003
1583020993225,3cyclictest0-21swapper/222:40:172
1583015993224,4cyclictest0-21swapper/100:35:161
1583015993222,6cyclictest0-21swapper/123:15:261
1583015993222,6cyclictest0-21swapper/123:05:271
1583015993222,6cyclictest0-21swapper/119:25:011
1583015993212,3cyclictest131rcu_preempt20:20:111
1583011993221,7cyclictest121ktimers/021:25:130
1583011993218,10cyclictest204-21dbus-daemon19:37:090
1583011993218,10cyclictest204-21dbus-daemon19:37:080
1583011993214,13cyclictest204-21dbus-daemon20:37:300
1583024993123,5cyclictest0-21swapper/323:55:003
1583024993122,6cyclictest1646450-21unixbench_singl22:10:263
1583024993121,6cyclictest0-21swapper/322:00:263
1583024993121,6cyclictest0-21swapper/320:10:253
1583024993121,5cyclictest0-21swapper/322:20:263
1583024993120,6cyclictest0-21swapper/322:20:003
1583024993119,7cyclictest0-21swapper/319:25:283
1583020993124,4cyclictest1633212-21cron21:35:012
1583020993124,4cyclictest0-21swapper/220:15:012
1583020993123,4cyclictest0-21swapper/221:05:252
1583015993124,4cyclictest0-21swapper/123:40:001
1583015993121,6cyclictest0-21swapper/121:20:181
1583015993121,6cyclictest0-21swapper/119:50:001
1583015993121,6cyclictest0-21swapper/100:30:251
1583011993125,3cyclictest0-21swapper/023:45:000
1583011993124,4cyclictest0-21swapper/022:25:260
1583011993123,4cyclictest0-21swapper/023:35:250
1583011993123,4cyclictest0-21swapper/020:05:260
1583011993122,6cyclictest1653704-21grep22:30:250
1583011993122,5cyclictest0-21swapper/021:55:270
1583011993122,4cyclictest0-21swapper/019:10:160
1583011993118,5cyclictest131rcu_preempt21:50:260
1583011993118,5cyclictest131rcu_preempt21:50:260
1583024993022,4cyclictest0-21swapper/322:50:003
1583024993022,4cyclictest0-21swapper/319:35:173
1583024993022,4cyclictest0-21swapper/319:35:173
1583024993021,5cyclictest0-21swapper/300:10:263
1583024993021,5cyclictest0-21swapper/300:10:253
1583020993023,5cyclictest1652005-21kworker/u8:2+events_unbound22:57:482
1583020993023,3cyclictest0-21swapper/220:35:002
1583020993023,3cyclictest0-21swapper/220:35:002
1583020993020,6cyclictest0-21swapper/222:05:002
1583015993019,7cyclictest0-21swapper/122:15:261
1583011993023,5cyclictest121ktimers/000:30:130
1583011993020,7cyclictest1595067-21grep19:40:260
1583011993019,7cyclictest1674162-21grep23:30:260
1583011993019,7cyclictest1674162-21grep23:30:250
158301199301,3cyclictest131rcu_preempt19:15:150
158301199300,7cyclictest0-21swapper/023:20:120
1583024992922,4cyclictest0-21swapper/320:30:233
1583024992922,4cyclictest0-21swapper/320:30:233
1583024992922,3cyclictest0-21swapper/319:45:173
1583020992922,4cyclictest0-21swapper/223:35:162
1583020992921,5cyclictest0-21swapper/219:54:592
1583015992919,6cyclictest1620803-21grep20:55:291
1583015992917,4cyclictest1679555-21kworker/u8:1+events_unbound23:49:231
158301599291,4cyclictest131rcu_preempt19:30:131
1583015992913,5cyclictest1612497-21kworker/u8:2+events_unbound20:41:251
158301199298,3cyclictest131rcu_preempt23:50:160
158301199297,6cyclictest131rcu_preempt23:20:000
158301199297,12cyclictest131rcu_preempt00:20:000
158301199297,12cyclictest0-21swapper/021:01:420
1583011992921,6cyclictest121ktimers/000:20:130
1583011992920,4cyclictest0-21swapper/022:25:010
158301199291,5cyclictest131rcu_preempt23:05:120
1583024992820,6cyclictest1676046-21kworker/u8:0+events_unbound23:42:513
1583024992820,6cyclictest1598755-21kworker/u8:3+events_unbound20:23:483
1583024992820,5cyclictest0-21swapper/322:45:003
1583024992818,6cyclictest0-21swapper/320:25:263
1583024992817,7cyclictest0-21swapper/300:20:273
1583024992816,7cyclictest0-21swapper/321:45:253
1583024992816,7cyclictest0-21swapper/321:45:253
158302099282,6cyclictest131rcu_preempt23:15:132
1583020992821,4cyclictest0-21swapper/222:45:262
1583020992819,6cyclictest0-21swapper/220:45:252
1583020992818,6cyclictest0-21swapper/223:45:002
1583020992818,6cyclictest0-21swapper/200:24:592
1583020992817,7cyclictest0-21swapper/223:55:242
1583020992817,6cyclictest0-21swapper/200:00:242
158301199288,11cyclictest11-21ksoftirqd/021:10:010
158301199283,4cyclictest131rcu_preempt20:35:010
158301199283,4cyclictest131rcu_preempt20:35:000
1583011992822,4cyclictest1598755-21kworker/u8:3+events_unbound20:17:180
1583011992812,10cyclictest204-21dbus-daemon21:32:410
1583011992810,5cyclictest1693246-21kworker/u8:1-events_freezable_power_00:27:210
158302499279,10cyclictest1664017-21seq23:01:103
1583024992721,3cyclictest0-21swapper/319:45:003
1583024992720,3cyclictest0-21swapper/322:30:163
1583024992717,6cyclictest0-21swapper/322:00:003
1583020992721,3cyclictest0-21swapper/221:55:002
1583020992721,3cyclictest0-21swapper/221:54:592
1583020992719,5cyclictest1608881-21unixbench_multi20:20:252
1583020992719,5cyclictest0-21swapper/223:30:262
1583020992719,5cyclictest0-21swapper/223:30:252
1583020992717,6cyclictest0-21swapper/222:50:262
158301599277,10cyclictest24-21ksoftirqd/123:50:201
1583015992719,5cyclictest0-21swapper/121:20:001
1583015992719,4cyclictest0-21swapper/100:05:141
1583015992717,6cyclictest0-21swapper/121:10:241
1583015992713,5cyclictest1584460-21kworker/u8:1+events_unbound19:15:131
158301199272,13cyclictest11-21ksoftirqd/020:04:140
1583011992719,5cyclictest1636646-21munin-plugin-st21:45:000
1583011992718,5cyclictest1685258-21fschecks_time00:05:150
1583011992715,3cyclictest131rcu_preempt22:10:190
1583011992714,8cyclictest1672451-21grep23:25:260
1583011992714,8cyclictest1672451-21grep23:25:250
1583024992619,5cyclictest1667723-21kworker/u8:0+events_unbound23:30:073
1583024992619,5cyclictest1667723-21kworker/u8:0+events_unbound23:30:063
1583024992619,5cyclictest1638129-21kworker/u8:1+events_unbound21:51:203
1583024992619,5cyclictest1638129-21kworker/u8:1+events_unbound21:51:193
1583024992618,5cyclictest0-21swapper/300:00:003
1583024992618,4cyclictest0-21swapper/321:25:013
1583024992616,7cyclictest0-21swapper/319:15:013
1583024992616,6cyclictest0-21swapper/321:40:283
1583024992616,6cyclictest0-21swapper/321:05:263
1583024992615,8cyclictest1644693-21grep22:05:253
1583020992620,3cyclictest0-21swapper/221:50:002
1583020992620,3cyclictest0-21swapper/221:50:002
1583020992617,5cyclictest0-21swapper/222:05:252
1583015992619,5cyclictest1612497-21kworker/u8:2+events_unbound20:39:201
1583015992619,4cyclictest1644695-21tail22:05:241
1583015992618,5cyclictest0-21swapper/120:25:161
1583015992616,7cyclictest1672213-21cat23:25:251
1583015992616,7cyclictest1672213-21cat23:25:241
1583015992610,6cyclictest24-21ksoftirqd/121:45:121
1583015992610,6cyclictest24-21ksoftirqd/121:45:111
158301199268,3cyclictest0-21swapper/023:58:100
158301199262,18cyclictest1592059-21cron19:35:010
158301199261,7cyclictest11-21ksoftirqd/022:05:120
1583011992617,5cyclictest13550irq/42-30be0000.ethernet23:00:010
1583011992612,3cyclictest131rcu_preempt23:00:130
158301199261,21cyclictest1658141-21grep22:45:190
158302499256,5cyclictest1693246-21kworker/u8:1+events_unbound00:36:463
1583024992519,3cyclictest0-21swapper/320:10:003
1583024992517,5cyclictest0-21swapper/323:35:253
1583024992516,5cyclictest0-21swapper/320:00:253
1583020992520,3cyclictest1610773-21kworker/u8:0+events_unbound20:27:312
1583020992519,3cyclictest0-21swapper/200:19:592
1583020992517,5cyclictest0-21swapper/223:45:222
1583020992517,5cyclictest0-21swapper/220:50:262
1583020992516,6cyclictest0-21swapper/220:40:242
1583020992516,6cyclictest0-21swapper/200:05:242
1583020992516,5cyclictest0-21swapper/221:35:282
1583020992515,6cyclictest0-21swapper/221:30:012
158301599259,9cyclictest131rcu_preempt22:57:111
158301599256,12cyclictest131rcu_preempt21:50:261
158301599256,12cyclictest131rcu_preempt21:50:261
1583015992518,3cyclictest0-21swapper/123:10:261
1583015992517,5cyclictest0-21swapper/122:45:171
1583015992516,6cyclictest0-21swapper/123:20:251
1583015992516,5cyclictest0-21swapper/122:35:001
1583015992515,7cyclictest1631102-21grep21:25:261
1583015992515,6cyclictest0-21swapper/121:05:261
1583015992512,10cyclictest231ktimers/121:30:131
158301599251,12cyclictest1601043-21fschecks_time20:00:161
1583011992517,6cyclictest1588532-21kworker/u8:1+events_unbound19:50:080
1583011992515,3cyclictest131rcu_preempt20:48:150
158301199251,12cyclictest11-21ksoftirqd/000:00:250
158301199250,8cyclictest11-21ksoftirqd/022:40:120
158302499244,5cyclictest1678281-21cpuspeed23:45:153
1583024992418,3cyclictest0-21swapper/300:35:013
1583024992417,4cyclictest1655811-21munin-plugin-st22:40:013
1583024992417,4cyclictest0-21swapper/321:25:203
1583024992416,5cyclictest0-21swapper/323:10:153
1583024992416,5cyclictest0-21swapper/320:45:253
1583024992416,4cyclictest0-21swapper/319:50:273
158302499241,11cyclictest1619911-21df20:55:153
1583020992418,4cyclictest1655535-21kworker/u8:0+events_unbound22:37:472
1583020992418,3cyclictest0-21swapper/219:10:202
1583020992416,5cyclictest0-21swapper/200:30:012
1583020992414,7cyclictest1626737-21df_inode21:15:152
1583020992413,8cyclictest1596247-21ntpq19:45:212
1583015992418,4cyclictest1652005-21kworker/u8:2+events_unbound22:41:201
1583015992417,4cyclictest1652005-21kworker/u8:2+events_unbound22:50:261
158301599241,14cyclictest0-21swapper/120:48:261
158301199241,12cyclictest0-21swapper/019:46:090
158302499237,3cyclictest131rcu_preempt20:50:273
1583024992317,4cyclictest1598755-21kworker/u8:3+events_unbound20:15:203
158302499231,15cyclictest1671526-21diskstats23:25:163
158302499231,15cyclictest1671526-21diskstats23:25:163
1583020992317,3cyclictest0-21swapper/220:55:192
1583020992316,5cyclictest1598755-21kworker/u8:3+events_unbound20:07:162
1583020992314,6cyclictest0-21swapper/220:15:262
1583020992314,5cyclictest0-21swapper/200:35:182
1583020992313,6cyclictest0-21swapper/222:20:012
1583015992317,4cyclictest1633137-21kworker/u8:1+events_unbound21:36:251
1583024992217,2cyclictest0-21swapper/319:20:243
1583024992215,5cyclictest145-21jbd2/mmcblk1p2-823:09:053
1583024992215,4cyclictest0-21swapper/323:15:263
1583020992216,4cyclictest1588532-21kworker/u8:1+events_unbound19:27:072
1583020992213,6cyclictest0-21swapper/220:00:162
1583020992211,7cyclictest1687993-21grep00:10:262
1583020992211,7cyclictest1687993-21grep00:10:262
1583024992114,5cyclictest1609030-21kworker/u8:1+events_unbound21:03:363
158302499210,14cyclictest0-21swapper/300:00:113
1583020992115,3cyclictest0-21swapper/219:20:182
1583020992111,6cyclictest0-21swapper/200:30:172
1583015992111,7cyclictest1589539-21uname19:25:261
1583020992015,3cyclictest0-21swapper/221:10:172
1583020992012,5cyclictest0-21swapper/219:55:162
1583020992011,6cyclictest0-21swapper/223:10:172
1583020992010,7cyclictest1592896-21awk19:35:232
1583020992010,7cyclictest1592896-21awk19:35:232
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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