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2026-02-28 - 01:48
[ 290.152] (II) VESA: driver for VESA chipsets: vesa

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #5, slot #4

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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  Intel
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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: ondemand
Compare latency of primary with shadow system
Characteristics of the highest latencies:
System rack5slot4s.osadl.org (updated Fri Feb 27, 2026 12:44:16)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1449832996154,6cyclictest1611049-21kworker/u8:2+flush-8:010:31:111
1449834996048,9cyclictest1605726-21gpgv09:45:012
1449832995850,6cyclictest1606096-21kworker/u8:0+flush-8:010:21:111
1449828995850,6cyclictest1546083-21latency_hist08:45:020
1449828995849,6cyclictest1744788-21latency_hist12:05:010
1449834995546,6cyclictest1531167-21cat08:30:002
1449828995549,4cyclictest1764806-21latency_hist12:25:000
1449828995549,4cyclictest1764806-21latency_hist12:25:000
1449832995442,9cyclictest274-21systemd-journal09:35:001
1449832995344,6cyclictest1565841-21latency_hist09:05:011
1449832995041,6cyclictest1454715-21latency_hist07:15:011
1449832994944,4cyclictest1606096-21kworker/u8:0+flush-8:009:45:571
1449832994942,5cyclictest1690605-21kworker/u8:3+events_unbound11:51:051
1449832994839,7cyclictest1749985-21/usr/sbin/munin12:11:021
1449832994839,7cyclictest1749985-21/usr/sbin/munin12:11:021
1449832994741,4cyclictest1551255-21kworker/u8:0+flush-8:008:55:561
1449828994742,4cyclictest1690605-21kworker/u8:3+events_unbound12:35:570
16174502460,2sleep10-21swapper/109:55:591
1449828994637,7cyclictest1580958-21/usr/sbin/munin09:21:020
1449828994637,7cyclictest1580958-21/usr/sbin/munin09:21:020
1449832994440,3cyclictest1449706-21kworker/u8:2+flush-8:007:25:551
1449832994439,4cyclictest1397665-21kworker/u8:1+flush-8:007:50:581
1449832994438,4cyclictest1611049-21kworker/u8:2+flush-8:010:01:011
1449828994432,9cyclictest1684612-21ntpq11:01:070
1449832994339,3cyclictest1449706-21kworker/u8:2+events_unbound07:16:001
1449832994337,5cyclictest1611049-21kworker/u8:2+flush-8:011:06:101
1449832994236,4cyclictest1397665-21kworker/u8:1+events_unbound08:06:041
1449832994230,9cyclictest1604751-21ntpq09:41:041
1449832994136,4cyclictest1397665-21kworker/u8:1+flush-8:008:01:051
1449832994134,5cyclictest1397665-21kworker/u8:1+flush-8:009:06:131
1449832994132,7cyclictest1770243-21/usr/sbin/munin12:31:041
1449832994131,7cyclictest1580661-21latency_hist09:20:001
1449832994035,4cyclictest1650440-21kworker/u8:1+flush-8:011:26:041
1449832994034,4cyclictest1749396-21kworker/u8:1+events_unbound12:10:001
1449832994033,5cyclictest1481318-21kworker/u8:3+flush-8:008:26:151
1449832994032,6cyclictest1775200-21apt-get12:35:501
1449832993933,5cyclictest1541366-21kworker/u8:2+flush-8:009:21:101
1449832993933,5cyclictest1541366-21kworker/u8:2+flush-8:009:21:101
1449832993933,4cyclictest1481318-21kworker/u8:3+flush-8:007:46:001
1449828993930,6cyclictest1526254-21latency_hist08:25:010
1449834993819,17cyclictest1690726-21aten2_r5power_e11:10:532
1449828993829,7cyclictest274-21systemd-journal12:35:010
1449834993728,6cyclictest1685420-21awk11:05:002
144983499372,13cyclictest1466866-21apt-get07:25:522
1449832993732,4cyclictest1749396-21kworker/u8:1+flush-8:012:15:561
1449832993732,4cyclictest1749396-21kworker/u8:1+flush-8:012:15:561
1449832993731,4cyclictest1646143-21apt-get10:25:511
1449832993727,8cyclictest1629699-21ntpq10:06:061
1449828993729,6cyclictest274-21systemd-journal07:20:000
1449834993629,5cyclictest274-21systemd-journal12:40:012
1449832993625,7cyclictest274-21systemd-journal10:55:001
1449828993630,4cyclictest1511719-21apt-get08:10:520
1449832993531,3cyclictest1699922-21kworker/u8:0+flush-8:011:21:051
1449832993530,3cyclictest1720088-21lockfile-create11:40:001
1449828993526,6cyclictest1605625-21latency_hist09:45:010
1449828993525,7cyclictest1675514-21latency_hist10:55:000
15661912340,4sleep0201rcuc/009:05:550
1449832993429,4cyclictest1541366-21kworker/u8:2+flush-8:009:11:011
1449832993429,4cyclictest1397665-21kworker/u8:1+flush-8:008:16:121
1449832993428,5cyclictest1481318-21kworker/u8:3+events_unbound08:20:551
1449832993427,5cyclictest1449706-21kworker/u8:2+flush-8:007:21:101
1449832993425,6cyclictest1611049-21kworker/u8:2+flush-8:011:16:041
1449832993424,8cyclictest1485614-21ntpq07:41:071
1449832993423,8cyclictest1501520-21latency_hist08:00:001
1449834993319,12cyclictest1630605-21apt-key10:10:002
1449834993318,13cyclictest0-21swapper/212:20:012
1449834993318,13cyclictest0-21swapper/212:20:002
1449834993317,14cyclictest1506842-21aten2_r5power_e08:05:542
1449834993314,2cyclictest0-21swapper/209:36:062
144983499331,13cyclictest1605624-21apt-get09:45:032
1449834993310,9cyclictest1580645-21idleruntime-cro09:20:002
1449832993328,3cyclictest1481318-21kworker/u8:3+events_unbound08:46:091
1449832993326,4cyclictest1699922-21kworker/u8:0+flush-8:011:41:051
1449828993327,4cyclictest1496585-21latency_hist07:55:000
1449828993324,7cyclictest1589730-21ntpq09:26:070
14493852334,9sleep20-21swapper/207:06:362
14479462331,25sleep01448632-21memory07:06:020
1449832993228,3cyclictest1541366-21kworker/u8:2+flush-8:008:41:141
1449832993227,3cyclictest1685444-21systemd-run11:05:001
1449832993227,3cyclictest1611049-21kworker/u8:2+flush-8:010:41:021
1449832993225,5cyclictest1655695-21kworker/u8:0+flush-8:010:36:081
1449832993225,5cyclictest1481318-21kworker/u8:3+flush-8:008:36:041
1449832993223,6cyclictest1743911-21ntpq12:01:051
1449832993219,9cyclictest274-21systemd-journal10:20:001
1449828993226,4cyclictest1449706-21kworker/u8:2+events_unbound07:30:570
144983499313,7cyclictest1631086-21apt-get10:10:522
1449834993114,3cyclictest1502073-21cpuspeed_turbos08:00:552
144983499311,12cyclictest1471803-21apt-get07:30:532
1449832993127,3cyclictest1749396-21kworker/u8:1+events_unbound12:26:111
1449832993126,4cyclictest1655695-21kworker/u8:0+events_unbound10:55:591
1449832993126,4cyclictest1655695-21kworker/u8:0+events_unbound10:55:591
1449832993125,4cyclictest1397665-21kworker/u8:1+flush-8:008:50:561
1449832993123,6cyclictest1669728-21ntpq10:46:081
1449832993122,7cyclictest1694419-21ntpq11:11:051
1449828993124,5cyclictest1710399-21kworker/u8:2+events_unbound12:00:000
15599932300,2sleep0161rcu_preempt08:56:040
1449834993015,2cyclictest0-21swapper/208:31:062
1449834993014,2cyclictest0-21swapper/207:15:052
1449834993013,2cyclictest0-21swapper/207:20:542
1449832993025,3cyclictest1760170-21apt-get12:20:521
1449832993025,3cyclictest1760170-21apt-get12:20:521
1449832993025,3cyclictest1472522-21irqrtprio07:30:591
1449832993024,4cyclictest1611049-21kworker/u8:2+flush-8:010:10:561
1449832993019,8cyclictest1600475-21gpgv09:40:011
144982899307,22cyclictest1630584-21kworker/0:0+events11:46:110
1449828993024,4cyclictest1650440-21kworker/u8:1+events_unbound10:40:010
144982899302,23cyclictest1449693-21kworker/0:1+events10:00:510
17456672290,7sleep3451irq_work/312:05:583
1449834992918,8cyclictest1670530-21/usr/sbin/munin10:50:002
1449834992915,2cyclictest0-21swapper/212:25:002
1449834992915,2cyclictest0-21swapper/212:25:002
1449834992913,2cyclictest0-21swapper/209:55:012
1449834992913,2cyclictest0-21swapper/208:21:042
1449834992912,3cyclictest0-21swapper/211:40:002
144983499291,11cyclictest1480315-21latency07:36:012
1449834992910,6cyclictest1491721-21cat07:50:012
1449832992925,2cyclictest1481318-21kworker/u8:3+events_unbound08:11:001
1449832992924,3cyclictest1615408-21unixbench_singl09:51:111
1449828992918,9cyclictest1765604-21diskstats12:25:560
144982899291,26cyclictest1561251-21tr09:00:550
144983499283,6cyclictest1730255-21apt-get11:50:522
144983499282,6cyclictest1651060-21apt-get10:30:542
1449834992813,2cyclictest0-21swapper/209:05:552
1449834992812,3cyclictest0-21swapper/209:01:012
1449834992811,4cyclictest0-21swapper/211:45:592
1449832992823,4cyclictest1397665-21kworker/u8:1+events_unbound09:26:121
1449832992820,6cyclictest1729617-21unixbench_singl11:46:121
1449832992819,7cyclictest1735210-21apt-get11:55:511
1449828992824,3cyclictest1650768-21systemd-run10:30:000
1449828992824,3cyclictest1606096-21kworker/u8:0+events_unbound10:15:000
1449828992824,3cyclictest1590769-21kworker/u8:3+flush-8:009:31:000
1449828992824,2cyclictest0-21swapper/007:50:000
1449828992821,5cyclictest1486325-21apt-get07:44:090
1449828992819,7cyclictest1630546-21latency_hist10:10:010
1449828992818,7cyclictest1690357-21latency_hist11:10:010
144983499274,6cyclictest1709209-21ntpq11:26:032
144983499273,7cyclictest1670840-21apt-get10:50:532
1449834992711,3cyclictest0-21swapper/207:41:002
144983499271,10cyclictest1581511-21ps09:20:582
144983499271,10cyclictest1581511-21ps09:20:582
1449832992714,10cyclictest274-21systemd-journal08:32:101
144982899274,18cyclictest1630584-21kworker/0:0+events12:15:070
144982899274,18cyclictest1630584-21kworker/0:0+events12:15:070
1449828992723,3cyclictest1695303-21cron11:15:010
1449828992723,2cyclictest0-21swapper/009:40:000
1449828992722,3cyclictest1397665-21kworker/u8:1+flush-8:009:10:310
1449828992722,3cyclictest0-21swapper/011:55:000
1449828992720,5cyclictest1700228-21latency_hist11:20:010
1449828992718,7cyclictest1453839-21ntpq07:11:040
1449834992623,2cyclictest1491971-21aten2_r5power_c07:50:552
1449834992623,2cyclictest0-21swapper/210:26:092
144983499261,11cyclictest1511719-21apt-get08:10:542
144983499261,10cyclictest1720389-21apt-get11:40:532
144982899264,21cyclictest1630584-21kworker/0:0+events11:28:350
1449828992618,6cyclictest1541366-21kworker/u8:2+flush-8:009:16:050
1449828992618,6cyclictest1481318-21kworker/u8:3+flush-8:008:26:090
1449828992617,2cyclictest0-21swapper/012:10:500
1449828992617,2cyclictest0-21swapper/012:10:500
144982899260,2cyclictest1535506-21sshd08:31:100
144983499258,7cyclictest1501505-21cron08:00:002
1449834992522,2cyclictest1704853-21unixbench_singl11:21:122
1449834992522,2cyclictest1556348-21aten2_r5power_p08:55:532
1449834992521,3cyclictest1540722-21unixbench_singl08:36:112
1449834992520,3cyclictest1590180-21unixbench_singl09:26:122
1449834992515,8cyclictest274-21systemd-journal12:31:102
1449834992511,3cyclictest0-21swapper/208:41:012
1449828992521,3cyclictest1675937-21aten2_r5power_v10:55:540
1449828992521,3cyclictest1675937-21aten2_r5power_v10:55:540
1449828992520,3cyclictest1449706-21kworker/u8:2+events_unbound07:35:580
1449834992419,4cyclictest1676869-21kthreadcore10:56:002
1449834992419,4cyclictest1676869-21kthreadcore10:56:002
1449834992412,10cyclictest0-21swapper/211:05:592
1449832992419,3cyclictest0-21swapper/107:40:001
144982899244,19cyclictest1630584-21kworker/0:0+events10:21:390
1449828992422,1cyclictest1611049-21kworker/u8:2+flush-8:010:16:010
144982899242,21cyclictest1449693-21kworker/0:1+events08:45:510
144982899241,22cyclictest1449693-21kworker/0:1+events09:51:110
1449834992319,3cyclictest1450126-21aten2_r5power_p07:10:532
1449832992316,5cyclictest0-21swapper/111:31:101
144982899237,15cyclictest1449693-21kworker/0:1+events08:50:550
144982899236,16cyclictest1630584-21kworker/0:0+events11:36:030
144982899235,17cyclictest1630584-21kworker/0:0+events11:41:070
1449828992318,4cyclictest1397665-21kworker/u8:1+events_unbound08:01:060
1449828992318,3cyclictest1491869-21kworker/u8:0+flush-8:008:35:560
144982899231,21cyclictest1449693-21kworker/0:1+events08:06:070
144982899231,21cyclictest1449693-21kworker/0:1+events07:21:110
1449834992218,2cyclictest0-21swapper/210:45:002
1449834992217,4cyclictest0-21swapper/208:51:092
144982899227,14cyclictest1630584-21kworker/0:0+events11:20:590
144982899224,17cyclictest1449693-21kworker/0:1+events08:16:070
1449828992219,2cyclictest1467031-21cpuspeed07:25:530
1449828992217,4cyclictest1611049-21kworker/u8:2+events_unbound10:31:100
1449828992217,3cyclictest0-21swapper/011:30:550
144982899221,20cyclictest1449693-21kworker/0:1+events07:55:590
1449828992210,10cyclictest1745098-21apt-get12:05:530
1449828992115,4cyclictest1611049-21kworker/u8:2+events_unbound10:41:040
144982899210,20cyclictest1449693-21kworker/0:1+events09:55:510
144982899210,20cyclictest1449693-21kworker/0:1+events09:49:470
1449834992017,2cyclictest1641302-21aten2_r5power_v10:20:552
1449834992017,2cyclictest1571151-21aten2_r5power_e09:10:532
1449834992016,2cyclictest1745183-21aten2_r5power_p12:05:532
1449834992015,3cyclictest1750324-21fschecks_time12:10:552
1449834992015,3cyclictest1750324-21fschecks_time12:10:552
1449828992017,2cyclictest0-21swapper/010:46:020
14450782204,10sleep10-21swapper/107:05:351
16603402190,6sleep3481ktimers/310:36:113
144983499195,2cyclictest15209682awk08:16:122
1449834991914,3cyclictest1636312-21aten2_r5power_e10:15:532
14494122184,8sleep30-21swapper/307:06:573
16769772170,2sleep3481ktimers/310:56:003
16769772170,2sleep3481ktimers/310:56:003
144983499178,7cyclictest1659748-21awk10:36:022
144983499172,11cyclictest1619783-21ntpq09:56:032
1449834991714,2cyclictest0-21swapper/208:45:592
1449834991713,2cyclictest0-21swapper/211:56:022
1449834991711,4cyclictest0-21swapper/212:01:012
144983499169,5cyclictest1696696-21tr11:15:592
144983499167,7cyclictest1713979-21tr11:31:032
1449834991611,3cyclictest1625275-21unixbench_singl10:01:122
17538042144,6sleep30-21swapper/312:11:053
17538042144,6sleep30-21swapper/312:11:053
16004202142,7sleep30-21swapper/309:40:013
144983499140,12cyclictest1767498-21tail12:26:012
15856432132,6sleep30-21swapper/309:25:013
15707602132,7sleep30-21swapper/309:10:003
15570922133,6sleep30-21swapper/308:56:003
14864602132,6sleep30-21swapper/307:45:013
14714742132,7sleep30-21swapper/307:30:013
14505312132,7sleep30-21swapper/307:10:593
144983499138,3cyclictest1590952-21aten2_r5power_v09:30:552
17792062122,6sleep30-21swapper/312:36:093
17702842122,6sleep30-21swapper/312:30:553
17649412122,5sleep30-21swapper/312:25:013
17589732123,5sleep30-21swapper/312:16:103
17589732123,5sleep30-21swapper/312:16:103
17398542122,5sleep30-21swapper/312:00:013
17270292122,6sleep30-21swapper/311:46:013
17244182122,6sleep30-21swapper/311:41:113
17109432122,6sleep30-21swapper/311:31:003
17016732122,6sleep30-21swapper/311:21:013
16955462122,6sleep30-21swapper/311:15:113
16945632123,5sleep30-21swapper/311:11:103
16812542122,6sleep30-21swapper/311:00:593
16556902122,6sleep30-21swapper/310:34:473
16455972122,6sleep30-21swapper/310:22:113
16366212122,6sleep30-21swapper/310:15:573
16356932120,8sleep30-21swapper/310:15:003
16256452122,6sleep30-21swapper/310:05:013
16215182122,6sleep30-21swapper/310:01:003
16114452122,6sleep30-21swapper/309:50:573
15847002122,6sleep30-21swapper/309:21:033
15847002122,6sleep30-21swapper/309:21:033
15764012122,7sleep30-21swapper/309:15:583
15713472122,6sleep30-21swapper/309:10:563
15608712122,5sleep30-21swapper/309:00:013
15506792122,6sleep30-21swapper/308:46:123
15454712122,6sleep30-21swapper/308:41:113
15320032120,7sleep30-21swapper/308:31:003
15259302122,6sleep30-21swapper/308:21:133
15194442122,6sleep30-21swapper/308:16:033
15103772123,6sleep30-21swapper/308:06:043
14971872122,6sleep30-21swapper/307:55:573
14754962122,6sleep30-21swapper/307:31:053
17646812112,5sleep30-21swapper/312:23:333
17646812112,5sleep30-21swapper/312:23:333
17354632112,5sleep30-21swapper/311:55:563
17302272112,5sleep30-21swapper/311:50:503
17151232111,6sleep30-21swapper/311:35:013
17095742112,5sleep30-21swapper/311:26:113
16866212112,5sleep30-21swapper/311:06:003
16744102112,5sleep30-21swapper/310:51:043
16697442112,6sleep30-21swapper/310:46:103
16612422112,5sleep30-21swapper/310:40:563
16470612112,5sleep30-21swapper/310:26:003
16165512112,5sleep30-21swapper/309:55:583
16009182112,6sleep30-21swapper/309:40:093
15908602112,5sleep30-21swapper/309:30:553
15516982112,5sleep30-21swapper/308:50:583
15363502112,6sleep30-21swapper/308:35:053
15265702112,5sleep30-21swapper/308:25:543
15116372112,6sleep30-21swapper/308:10:093
15018552112,5sleep30-21swapper/308:00:543
14919452112,5sleep30-21swapper/307:50:553
14826172112,5sleep30-21swapper/307:41:003
14768962112,6sleep30-21swapper/307:35:543
14616442110,6sleep30-21swapper/307:20:013
14607102112,5sleep30-21swapper/307:16:043
16060812102,5sleep30-21swapper/309:45:073
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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