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2026-06-20 - 15:37

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #e, slot #6

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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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
Compare latency of primary with shadow system
Characteristics of all highest latencies:
System rackeslot6s.osadl.org (updated Sat Jun 20, 2026 12:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
190571299915,45cyclictest30-21rcuc/207:15:022
1905707998520,5cyclictest0-21swapper/007:30:000
190570799761,39cyclictest0-21swapper/011:35:000
1905707996658,4cyclictest167350irq/118-8000000.ethernet-tx011:00:010
1905709996451,7cyclictest1906729-21latency_hist07:15:011
1905707996344,17cyclictest0-21swapper/012:40:010
190570999618,22cyclictest24-21ksoftirqd/111:10:001
1905712995942,14cyclictest311ktimers/209:30:152
1905709995835,6cyclictest14-21rcu_preempt09:15:021
1905709995835,16cyclictest231ktimers/109:35:121
1905712995647,5cyclictest1917019-21munin-plugin-st08:15:002
1905709995633,16cyclictest231ktimers/112:00:131
1905707995647,4cyclictest0-21swapper/010:05:270
190571299551,26cyclictest0-21swapper/211:55:152
190570999542,22cyclictest1917860-21apt-get08:20:011
1905712995346,3cyclictest1959695-21apt-get12:25:022
1905709995331,16cyclictest231ktimers/112:05:161
1905709995331,16cyclictest231ktimers/112:05:161
190570799515,15cyclictest1945234-21apt-get11:00:010
190570799513,6cyclictest1928948-21tail09:20:280
190570799513,6cyclictest1928948-21tail09:20:270
1905709995028,16cyclictest231ktimers/108:25:171
1905712994942,3cyclictest1932409-21munin-plugin-st09:45:002
1905709994925,16cyclictest231ktimers/110:05:131
1905712994817,14cyclictest30-21rcuc/209:55:012
1905712994817,14cyclictest30-21rcuc/209:55:012
190570999485,37cyclictest1907036-21ptp4l07:15:061
1905709994837,7cyclictest1945242-21sendmail11:00:011
1905709994837,7cyclictest1945242-21sendmail11:00:011
1905709994830,12cyclictest231ktimers/107:55:141
190570799488,7cyclictest1959862-21rm12:25:010
190570799481,3cyclictest0-21swapper/008:50:240
190571299477,12cyclictest32-21ksoftirqd/211:35:012
1905712994739,5cyclictest1952084-21latency_hist11:40:012
1905712994739,4cyclictest1957989-21cron12:15:002
1905712994738,5cyclictest1923865-21munin-plugin-st08:55:002
1905709994728,13cyclictest231ktimers/109:25:131
1905712994631,10cyclictest0-21swapper/207:50:002
1905709994636,6cyclictest1926486-21munin-plugin-st09:10:011
1905709994635,5cyclictest1937486-21grep10:10:291
1905709994634,8cyclictest1922128-21grep08:40:291
1905709994627,12cyclictest231ktimers/107:30:141
1905709994625,14cyclictest231ktimers/110:35:121
1905709994624,15cyclictest231ktimers/110:50:121
1905709994614,23cyclictest1949758-21/usr/sbin/munin11:25:171
1905707994638,4cyclictest167350irq/118-8000000.ethernet-tx007:10:290
1905707994617,6cyclictest14-21rcu_preempt08:30:010
190570799461,2cyclictest0-21swapper/007:45:010
190570799461,2cyclictest0-21swapper/007:45:010
1905712994525,10cyclictest0-21swapper/210:25:002
1905709994527,13cyclictest231ktimers/111:40:161
1905709994526,13cyclictest231ktimers/111:20:121
1905709994526,13cyclictest231ktimers/109:20:111
1905709994526,13cyclictest231ktimers/109:20:111
1905709994525,14cyclictest231ktimers/111:30:141
1905709994521,8cyclictest14-21rcu_preempt11:00:021
1905707994528,15cyclictest167350irq/118-8000000.ethernet-tx008:40:130
1905712994414,23cyclictest250-21jbd2/mmcblk1p2-808:18:232
190571299441,36cyclictest1927522-21/usr/sbin/munin09:15:202
1905709994423,13cyclictest231ktimers/108:55:131
190570799446,35cyclictest0-21swapper/012:30:280
190570799446,35cyclictest0-21swapper/012:30:270
1905707994438,4cyclictest1947860-21munin-plugin-st11:15:010
1905707994437,4cyclictest167350irq/118-8000000.ethernet-tx007:30:150
1905707994435,5cyclictest20850irq/208-8000000.ethernet09:05:290
1905707994434,7cyclictest1922928-21grep08:45:280
1905707994432,8cyclictest0-21swapper/011:20:280
190570799441,7cyclictest1918124-21latency_hist08:20:010
190570799441,37cyclictest1951989-21grep11:35:280
1905707994411,28cyclictest131ktimers/012:00:190
1905712994333,6cyclictest0-21swapper/208:20:282
190570999438,13cyclictest14-21rcu_preempt12:40:001
1905709994325,13cyclictest231ktimers/109:00:121
1905709994325,12cyclictest231ktimers/112:15:101
1905709994321,17cyclictest231ktimers/108:10:121
1905707994332,8cyclictest1915903-21proc_pri08:05:270
190570799431,6cyclictest1941499-21ps10:35:270
1905712994219,5cyclictest2-21kthreadd10:14:262
1905712994214,16cyclictest0-21swapper/209:00:122
1905709994232,6cyclictest1916129-21grep08:05:291
1905707994227,13cyclictest0-21swapper/010:55:000
1905707994219,18cyclictest1933245-21latency_hist09:50:010
1905707994219,18cyclictest1933245-21latency_hist09:50:010
190570799421,4cyclictest1935201-21ls10:00:020
190570799421,2cyclictest0-21swapper/011:50:000
1905712994130,7cyclictest0-21swapper/212:05:002
1905712994128,8cyclictest1945174-21grep10:55:302
1905712994128,8cyclictest1945174-21grep10:55:302
1905712994112,24cyclictest0-21swapper/208:45:222
1905709994132,5cyclictest1943470-21munin-plugin-st10:50:001
1905709994130,5cyclictest1930606-21grep09:30:301
1905709994129,6cyclictest0-21swapper/111:50:311
1905709994126,11cyclictest0-21swapper/110:45:001
1905709994119,15cyclictest231ktimers/109:45:111
1905709994119,15cyclictest231ktimers/109:45:111
190570999411,2cyclictest0-21swapper/111:15:011
1905707994134,5cyclictest20850irq/208-8000000.ethernet11:50:220
1905707994134,4cyclictest1943078-21if_eth110:45:220
1905707994132,5cyclictest0-21swapper/009:40:300
1905707994131,6cyclictest0-21swapper/008:40:000
1905707994128,9cyclictest0-21swapper/010:15:210
1905707994128,9cyclictest0-21swapper/010:15:210
190570799412,4cyclictest1938681-21df_inode10:20:180
190570799412,30cyclictest1918930-21cat08:25:000
190570799411,4cyclictest1952599-21/usr/sbin/munin11:40:250
190570799411,4cyclictest1939525-21diskstats10:25:190
1905712994022,10cyclictest0-21swapper/211:05:272
1905709994034,3cyclictest0-21swapper/109:55:011
1905709994034,3cyclictest0-21swapper/109:55:011
190570999401,4cyclictest0-21swapper/110:05:011
1905707994033,5cyclictest1934179-21munin-plugin-st09:55:010
1905707994033,5cyclictest1934179-21munin-plugin-st09:55:000
190570799401,4cyclictest0-21swapper/011:25:280
190570799401,37cyclictest0-21swapper/008:10:230
190570799401,37cyclictest0-21swapper/008:00:180
190570799401,37cyclictest0-21swapper/007:45:300
190570799401,34cyclictest0-21swapper/008:55:080
190570799401,2cyclictest0-21swapper/010:30:120
190570799401,2cyclictest0-21swapper/010:30:120
1905709993930,5cyclictest0-21swapper/108:45:281
1905709993924,8cyclictest0-21swapper/107:25:291
1905709993919,14cyclictest231ktimers/108:30:121
1905709993919,14cyclictest231ktimers/108:30:121
1905707993933,3cyclictest0-21swapper/009:15:210
190570799391,4cyclictest0-21swapper/007:20:010
190570799391,3cyclictest1908004-21sshd07:20:160
190570799391,36cyclictest0-21swapper/012:10:180
190570799391,36cyclictest0-21swapper/007:50:230
190571299388,25cyclictest311ktimers/209:58:162
1905712993827,7cyclictest1959594-21grep12:20:292
1905712993827,7cyclictest0-21swapper/210:30:002
1905712993827,5cyclictest0-21swapper/209:25:212
1905712993825,8cyclictest0-21swapper/208:25:302
1905712993822,8cyclictest0-21swapper/211:15:272
1905712993815,11cyclictest0-21swapper/209:20:102
1905712993815,11cyclictest0-21swapper/209:20:102
1905709993828,7cyclictest1915223-21grep08:00:311
1905709993826,8cyclictest0-21swapper/107:20:261
1905709993820,13cyclictest231ktimers/110:25:141
190570999381,5cyclictest0-21swapper/112:25:021
1905707993831,4cyclictest0-21swapper/012:05:310
1905707993831,4cyclictest0-21swapper/012:05:300
1905707993827,7cyclictest0-21swapper/012:30:000
1905707993826,8cyclictest0-21swapper/011:00:280
190570799381,35cyclictest0-21swapper/010:10:210
190570799381,35cyclictest0-21swapper/009:10:150
1905712993728,5cyclictest0-21swapper/207:40:282
1905712993728,5cyclictest0-21swapper/207:40:282
1905712993723,9cyclictest1922163-21sshd08:42:162
1905709993728,5cyclictest0-21swapper/110:15:291
1905709993728,5cyclictest0-21swapper/110:15:281
1905709993726,7cyclictest0-21swapper/110:30:251
1905709993726,7cyclictest0-21swapper/110:30:251
1905709993717,15cyclictest231ktimers/112:30:141
1905709993717,15cyclictest231ktimers/112:30:141
1905707993731,4cyclictest0-21swapper/011:09:040
1905707993723,9cyclictest0-21swapper/010:00:210
190570799371,5cyclictest0-21swapper/011:55:170
190570799371,3cyclictest0-21swapper/009:00:220
190570799371,34cyclictest0-21swapper/007:35:140
190571299363,31cyclictest0-21swapper/207:15:212
1905712993628,4cyclictest1941681-21grep10:35:282
1905712993627,7cyclictest311ktimers/208:35:252
1905712993624,6cyclictest311ktimers/210:35:012
1905712993624,6cyclictest311ktimers/210:35:012
1905712993615,11cyclictest311ktimers/211:15:012
1905712993612,12cyclictest0-21swapper/211:45:082
190570999361,29cyclictest0-21swapper/111:55:161
1905707993629,5cyclictest20850irq/208-8000000.ethernet10:40:270
1905707993621,10cyclictest0-21swapper/011:15:210
190570799361,3cyclictest0-21swapper/009:25:170
190570799361,33cyclictest0-21swapper/008:32:400
190570799361,33cyclictest0-21swapper/008:32:400
1905712993529,4cyclictest311ktimers/208:05:252
1905712993527,5cyclictest311ktimers/207:55:002
1905712993526,6cyclictest311ktimers/209:35:192
1905712993525,6cyclictest311ktimers/210:55:022
1905712993522,7cyclictest0-21swapper/210:05:002
1905712993517,13cyclictest30-21rcuc/211:20:182
1905709993528,4cyclictest167450irq/126-8000000.ethernet-tx109:40:161
1905709993522,8cyclictest0-21swapper/111:35:291
1905707993528,4cyclictest0-21swapper/009:30:150
190570799351,3cyclictest0-21swapper/012:15:220
1905712993426,5cyclictest311ktimers/211:50:252
1905712993425,6cyclictest311ktimers/211:25:112
1905712993423,8cyclictest1945540-21/usr/sbin/munin11:00:292
1905712993421,9cyclictest311ktimers/210:15:222
1905712993421,9cyclictest311ktimers/210:15:212
1905712993419,10cyclictest0-21swapper/209:10:252
190571299341,28cyclictest0-21swapper/212:05:192
190571299341,28cyclictest0-21swapper/212:05:192
190571299341,25cyclictest0-21swapper/209:45:102
190571299341,25cyclictest0-21swapper/209:45:102
1905709993425,5cyclictest0-21swapper/108:50:161
1905709993424,5cyclictest0-21swapper/109:55:201
1905709993422,6cyclictest0-21swapper/107:40:311
1905709993422,6cyclictest0-21swapper/107:40:301
1905709993419,9cyclictest0-21swapper/111:15:251
190570999341,2cyclictest0-21swapper/107:10:011
190570999341,28cyclictest0-21swapper/111:45:171
190570999341,28cyclictest0-21swapper/107:35:281
1905707993427,4cyclictest0-21swapper/009:35:110
190570799341,3cyclictest0-21swapper/007:55:590
1905712993325,5cyclictest311ktimers/212:30:172
1905712993325,5cyclictest311ktimers/212:30:172
1905712993324,5cyclictest1914445-21grep07:55:292
1905712993323,7cyclictest311ktimers/208:55:142
190571299332,2cyclictest0-21swapper/211:45:022
190571299331,27cyclictest0-21swapper/210:40:162
1905709993321,9cyclictest0-21swapper/109:10:261
190570999331,27cyclictest0-21swapper/107:45:271
1905712993225,5cyclictest311ktimers/210:45:162
1905712993225,4cyclictest311ktimers/207:35:142
1905712993222,6cyclictest0-21swapper/210:05:222
1905712993216,8cyclictest0-21swapper/212:15:272
190571299321,25cyclictest0-21swapper/208:30:162
190571299321,25cyclictest0-21swapper/208:30:162
1905709993221,7cyclictest0-21swapper/108:20:281
190570999321,6cyclictest0-21swapper/112:15:001
1905709993215,11cyclictest231ktimers/112:25:101
1905712993126,3cyclictest0-21swapper/207:30:222
1905712993123,4cyclictest1909335-21grep07:25:292
1905709993123,5cyclictest1913550-21grep07:50:271
190570799311,28cyclictest1905720-21grep07:10:000
190571299301,26cyclictest1915315-21sshd08:01:162
1905712992923,4cyclictest311ktimers/207:20:202
1905712992919,7cyclictest1961664-21munin-node12:35:112
1905709992923,3cyclictest167450irq/126-8000000.ethernet-tx108:35:161
1905712992819,7cyclictest1925846-21/usr/sbin/munin09:05:282
190570999286,17cyclictest1938610-21/usr/sbin/munin10:20:201
1905712992111,5cyclictest32-21ksoftirqd/207:10:002
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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