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2026-08-14 - 15:23

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 the 792 highest latencies:
System rackeslot6s.osadl.org (updated Fri Aug 14, 2026 00:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3829528997322,25cyclictest3846297-21/usr/sbin/munin20:45:211
3829528997217,30cyclictest0-21swapper/120:05:011
3829528997120,27cyclictest0-21swapper/119:20:001
382952899673,15cyclictest3845458-21/usr/sbin/munin20:40:181
382952899673,15cyclictest3845458-21/usr/sbin/munin20:40:181
382952899641,37cyclictest0-21swapper/123:00:011
3829530996254,4cyclictest3881827-21munin-plugin-st00:15:002
382952899621,31cyclictest0-21swapper/123:45:011
3829530996145,11cyclictest0-21swapper/219:35:012
3829530996118,9cyclictest3848837-21/usr/sbin/munin21:00:172
3829530995734,18cyclictest311ktimers/222:30:012
3829528995730,15cyclictest0-21swapper/122:20:151
3829528995730,15cyclictest0-21swapper/122:20:151
3829528995631,14cyclictest0-21swapper/100:25:151
3829528995615,33cyclictest3875897-21sshd23:39:261
3829528995615,33cyclictest3875897-21sshd23:39:261
382952899555,11cyclictest0-21swapper/121:25:011
382952899555,11cyclictest0-21swapper/121:25:001
3829528995332,13cyclictest0-21swapper/119:45:131
3829528995316,31cyclictest0-21swapper/121:25:251
3829528995314,36cyclictest0-21swapper/119:10:011
3829528995235,11cyclictest3841993-21apt-get20:20:161
3829528995233,13cyclictest0-21swapper/120:30:121
3829528995134,9cyclictest3843024-21ssh20:25:211
3829528995134,9cyclictest3843024-21ssh20:25:211
3829528995125,13cyclictest0-21swapper/120:15:151
3829528995031,9cyclictest3845126-21grep20:35:281
3829528995030,11cyclictest0-21swapper/119:50:291
3829527995019,28cyclictest14-21rcu_preempt20:40:280
3829527995019,28cyclictest14-21rcu_preempt20:40:280
3829528994935,9cyclictest3880346-21apt-get00:05:191
3829528994931,12cyclictest0-21swapper/122:40:121
3829528994929,13cyclictest0-21swapper/100:30:151
3829528994929,13cyclictest0-21swapper/100:30:141
3829528994831,10cyclictest3857515-21dropbear21:50:191
3829528994829,7cyclictest0-21swapper/122:05:301
3829528994823,16cyclictest3869897-21tail23:00:281
3829528994821,19cyclictest3874147-21grep23:25:291
3829528994819,18cyclictest3848504-21grep20:55:271
382952799484,8cyclictest0-21swapper/021:15:020
3829527994838,7cyclictest3871689-21munin-plugin-st23:15:000
3829528994728,13cyclictest0-21swapper/123:15:141
3829528994726,10cyclictest0-21swapper/122:15:141
3829528994726,10cyclictest0-21swapper/119:30:121
3829528994721,13cyclictest0-21swapper/123:30:121
3829528994719,18cyclictest3881706-21grep00:10:281
382952799478,28cyclictest14-21rcu_preempt20:25:010
3829527994743,2cyclictest0-21swapper/019:35:110
3829527994743,2cyclictest0-21swapper/019:35:110
3829527994731,7cyclictest3882603-21grep00:15:320
3829527994731,7cyclictest3882603-21grep00:15:320
3829528994635,6cyclictest3880091-21grep00:00:321
3829528994633,6cyclictest0-21swapper/119:25:291
3829528994629,11cyclictest3882272-21/usr/sbin/munin00:15:231
3829528994629,11cyclictest3882272-21/usr/sbin/munin00:15:231
3829528994628,11cyclictest0-21swapper/120:50:121
3829528994627,14cyclictest0-21swapper/122:50:141
3829528994627,11cyclictest3829884-21grep19:10:201
3829527994639,5cyclictest3836623-21grep19:50:000
3829527994633,8cyclictest0-21swapper/021:50:320
3829528994535,7cyclictest3835141-21/usr/sbin/munin19:40:111
3829528994533,8cyclictest3871638-21grep23:10:301
3829528994531,9cyclictest3855685-21apt-get21:40:161
3829528994529,10cyclictest0-21swapper/122:10:121
3829528994529,10cyclictest0-21swapper/122:10:121
3829528994528,9cyclictest3840551-21phc2sys-jitter20:10:261
3829528994522,14cyclictest3885509-21munin-node00:35:121
3829527994514,3cyclictest0-21swapper/021:20:280
3829527994514,3cyclictest0-21swapper/021:20:280
382952799451,42cyclictest0-21swapper/000:10:110
3829530994428,10cyclictest0-21swapper/223:30:292
3829528994436,4cyclictest3837736-21/usr/sbin/munin19:55:171
3829528994435,4cyclictest3870209-21/usr/sbin/munin23:05:301
3829528994434,7cyclictest3851134-21sshd21:11:201
3829528994433,7cyclictest3865053-21apt-get22:35:151
3829528994431,7cyclictest3864291-21/usr/sbin/munin22:30:191
3829528994428,9cyclictest3877287-21/usr/sbin/munin23:45:281
3829528994427,9cyclictest3834448-21lsblk19:35:211
3829528994427,9cyclictest3834448-21lsblk19:35:211
3829528994425,9cyclictest3848906-21/usr/sbin/munin21:00:151
3829528994424,12cyclictest3850017-21/usr/sbin/munin21:05:271
382952799444,36cyclictest0-21swapper/000:30:210
382952799444,36cyclictest0-21swapper/000:30:210
3829527994437,4cyclictest20650irq/252-8000000.ethernet00:00:330
3829527994435,5cyclictest0-21swapper/020:20:000
3829527994431,8cyclictest0-21swapper/019:40:280
3829527994428,12cyclictest0-21swapper/022:25:280
3829528994329,9cyclictest3863993-21sshd22:27:261
3829528994325,11cyclictest3854952-21/usr/sbin/munin21:35:211
3829528994325,11cyclictest3854952-21/usr/sbin/munin21:35:211
3829528994323,8cyclictest3872750-21/usr/sbin/munin23:20:111
3829527994335,4cyclictest0-21swapper/020:00:120
382952799432,5cyclictest3832781-21irqstats19:25:230
382952799431,39cyclictest3840491-21kernelversion20:10:230
3829528994235,4cyclictest3858296-21apt-get21:55:141
3829528994232,8cyclictest3853694-21apt-get21:30:041
3829528994229,11cyclictest3839431-21/usr/sbin/munin20:05:151
3829528994228,7cyclictest3882887-21apt-get00:20:151
3829528994226,11cyclictest3866836-21munin-node22:45:121
3829528994225,12cyclictest3851461-21/usr/sbin/munin21:15:201
3829528994223,13cyclictest3879067-21/usr/sbin/munin23:55:251
3829530994129,9cyclictest0-21swapper/219:35:292
3829530994129,9cyclictest0-21swapper/219:35:292
3829530994129,8cyclictest0-21swapper/200:30:302
3829530994129,8cyclictest0-21swapper/200:30:302
3829530994127,8cyclictest0-21swapper/222:50:302
3829530994125,11cyclictest0-21swapper/221:05:292
382953099411,9cyclictest0-21swapper/219:20:012
3829528994134,3cyclictest3859450-21meminfo22:00:251
3829528994132,6cyclictest3831681-21apt-get19:20:111
382952799417,4cyclictest0-21swapper/023:55:010
3829527994133,5cyclictest131ktimers/020:25:230
3829527994133,5cyclictest131ktimers/020:25:230
3829527994129,8cyclictest0-21swapper/023:05:290
3829527994128,9cyclictest0-21swapper/019:10:290
382952799412,36cyclictest0-21swapper/021:05:210
382952799411,5cyclictest3877607-21munin-run23:50:000
382952799411,5cyclictest0-21swapper/023:45:000
382952799411,38cyclictest0-21swapper/019:20:260
382952799411,36cyclictest0-21swapper/000:35:020
3829530994029,8cyclictest3880147-21munin-plugin-st00:05:002
3829528994026,8cyclictest3856526-21apt-get21:45:171
3829528994026,8cyclictest3856526-21apt-get21:45:171
3829527994034,4cyclictest20850irq/208-8000000.ethernet19:55:280
3829527994033,4cyclictest19750irq/27-20000000.i2c19:34:590
3829527994033,3cyclictest0-21swapper/022:35:220
3829527994030,7cyclictest0-21swapper/020:30:290
3829527994028,6cyclictest0-21swapper/021:30:310
3829527994027,10cyclictest0-21swapper/021:00:270
382952799402,36cyclictest0-21swapper/000:20:210
3829530993929,6cyclictest3843356-21grep20:25:282
3829530993929,6cyclictest3843356-21grep20:25:282
3829528993932,3cyclictest3877877-21diskstats23:50:181
3829527993933,4cyclictest20850irq/208-8000000.ethernet22:10:230
3829527993933,4cyclictest20850irq/208-8000000.ethernet22:10:230
3829527993933,4cyclictest205-21ptp021:29:590
3829527993927,9cyclictest0-21swapper/000:25:300
3829527993927,8cyclictest0-21swapper/023:15:290
382952799392,3cyclictest0-21swapper/022:00:010
3829527993922,9cyclictest0-21swapper/023:25:290
382952799391,4cyclictest0-21swapper/023:55:270
382952799391,36cyclictest0-21swapper/020:05:240
3829530993829,5cyclictest0-21swapper/200:25:302
3829530993824,10cyclictest0-21swapper/222:55:292
3829527993830,5cyclictest0-21swapper/023:20:180
3829527993825,8cyclictest0-21swapper/023:35:280
3829527993825,8cyclictest0-21swapper/023:35:280
3829527993822,14cyclictest3867852-21fschecks_time22:50:220
382952799381,6cyclictest0-21swapper/022:25:010
382952799381,6cyclictest0-21swapper/022:25:010
382952799381,3cyclictest0-21swapper/021:45:170
382952799381,3cyclictest0-21swapper/021:45:170
382952799381,35cyclictest0-21swapper/023:00:220
382952799381,35cyclictest0-21swapper/022:55:280
382952799381,2cyclictest0-21swapper/019:15:190
382953099379,23cyclictest0-21swapper/219:15:012
3829530993729,4cyclictest167550irq/134-8000000.ethernet-tx221:50:252
3829530993725,9cyclictest3878645-21/usr/sbin/munin23:55:162
3829530993725,9cyclictest0-21swapper/222:40:012
3829530993724,9cyclictest0-21swapper/222:15:282
3829530993724,9cyclictest0-21swapper/219:55:012
3829530993724,8cyclictest0-21swapper/220:55:282
3829530993723,8cyclictest0-21swapper/219:55:282
3829530993722,10cyclictest0-21swapper/200:20:302
3829530993721,8cyclictest0-21swapper/221:20:302
3829530993721,8cyclictest0-21swapper/221:20:302
3829527993727,7cyclictest0-21swapper/020:50:280
382952799371,4cyclictest0-21swapper/022:00:140
382952799371,34cyclictest0-21swapper/022:45:140
382952799371,34cyclictest0-21swapper/021:15:220
382952799371,34cyclictest0-21swapper/020:47:200
382952799371,34cyclictest0-21swapper/000:05:290
3829530993623,7cyclictest0-21swapper/220:35:292
3829530993615,12cyclictest311ktimers/221:30:032
3829527993630,4cyclictest20850irq/208-8000000.ethernet21:40:190
382952799362,4cyclictest0-21swapper/019:10:020
3829527993623,10cyclictest131ktimers/022:40:060
382952799361,33cyclictest0-21swapper/022:15:260
3829530993527,6cyclictest3831678-21/usr/sbin/munin19:20:292
3829530993526,6cyclictest3835982-21/usr/sbin/munin19:45:282
3829530993524,7cyclictest3869916-21unixbench_multi23:00:282
3829530993524,6cyclictest0-21swapper/221:15:312
3829530993523,8cyclictest0-21swapper/222:10:302
3829530993523,8cyclictest0-21swapper/222:10:302
3829530993523,8cyclictest0-21swapper/200:35:302
3829530993521,9cyclictest0-21swapper/200:05:232
382952799352,5cyclictest0-21swapper/023:35:010
382952799350,2cyclictest3844696-21ssh20:35:190
3829530993425,4cyclictest0-21swapper/221:45:222
3829530993425,4cyclictest0-21swapper/221:45:222
382953099341,2cyclictest0-21swapper/223:25:012
3829527993428,4cyclictest20850irq/208-8000000.ethernet19:55:010
382952799341,31cyclictest0-21swapper/020:56:420
3829530993325,5cyclictest0-21swapper/221:55:332
3829530993325,5cyclictest0-21swapper/219:25:292
3829530993324,6cyclictest0-21swapper/223:35:292
3829530993324,6cyclictest0-21swapper/223:35:282
3829530993323,6cyclictest0-21swapper/223:15:222
3829530993323,4cyclictest0-21swapper/220:15:202
3829530993322,7cyclictest0-21swapper/222:20:292
3829530993322,7cyclictest0-21swapper/222:20:292
3829530993322,7cyclictest0-21swapper/222:05:212
3829530993322,7cyclictest0-21swapper/220:20:272
3829530993321,8cyclictest0-21swapper/222:00:292
3829527993327,4cyclictest20850irq/208-8000000.ethernet21:35:170
3829527993327,4cyclictest20850irq/208-8000000.ethernet21:35:170
382952799331,6cyclictest3860262-21kernelversion22:05:250
3829530993225,4cyclictest167550irq/134-8000000.ethernet-tx223:05:292
3829530993224,4cyclictest0-21swapper/221:25:232
3829530993223,6cyclictest3847137-21/usr/sbin/munin20:50:182
3829530993222,6cyclictest311ktimers/222:40:112
3829530993221,8cyclictest3877945-21grep23:50:192
3829530993219,9cyclictest0-21swapper/200:15:332
3829530993219,9cyclictest0-21swapper/200:15:322
382952799321,29cyclictest0-21swapper/022:34:150
3829530993123,5cyclictest167550irq/134-8000000.ethernet-tx221:10:242
3829530993123,5cyclictest167550irq/134-8000000.ethernet-tx219:40:232
3829530993123,5cyclictest0-21swapper/222:25:292
3829530993121,7cyclictest0-21swapper/221:35:302
3829530993121,7cyclictest0-21swapper/221:35:302
3829530993121,5cyclictest0-21swapper/220:40:282
3829530993121,5cyclictest0-21swapper/220:40:282
3829530993118,8cyclictest0-21swapper/223:40:292
382953099311,4cyclictest0-21swapper/221:45:002
382953099311,25cyclictest0-21swapper/223:25:262
3829530993012,14cyclictest167550irq/134-8000000.ethernet-tx220:01:202
3829530992918,8cyclictest0-21swapper/220:45:302
3829530992917,8cyclictest0-21swapper/223:10:292
3829530992916,9cyclictest0-21swapper/220:10:292
382953099288,11cyclictest3843669-21/usr/sbin/munin20:30:192
382953099281,25cyclictest0-21swapper/223:45:162
382953099271,24cyclictest0-21swapper/222:47:262
3829530992619,3cyclictest0-21swapper/220:05:262
382953099251,4cyclictest0-21swapper/219:10:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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