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2026-09-04 - 06:23

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 Sep 04, 2026 00:44:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
137510799110102,5cyclictest231ktimers/119:25:011
1375105999011,18cyclictest1412872-21apt-get22:50:010
1375105998480,2cyclictest0-21swapper/021:00:010
1375105997727,14cyclictest0-21swapper/021:20:130
1375105997239,4cyclictest167350irq/118-8000000.ethernet-tx022:20:170
137510599721,8cyclictest1401059-21wc21:40:010
1375107996742,20cyclictest231ktimers/123:50:021
137510599658,25cyclictest20850irq/208-8000000.ethernet20:20:010
137510599593,14cyclictest1393158-21kworker/u8:4+ext4-rsv-conversion21:15:010
1375105995848,5cyclictest167350irq/118-8000000.ethernet-tx021:30:010
1375105995848,5cyclictest167350irq/118-8000000.ethernet-tx021:30:000
1375105995737,16cyclictest167350irq/118-8000000.ethernet-tx021:30:340
1375109995447,4cyclictest1411184-21sendmail22:40:002
137510999544,24cyclictest30-21rcuc/200:05:192
1375107995414,9cyclictest0-21swapper/119:30:021
137510799515,25cyclictest22-21rcuc/100:15:001
1375107995143,5cyclictest832-21systemd-network22:50:051
137510599506,14cyclictest131ktimers/022:10:010
1375109994926,12cyclictest14-21rcu_preempt19:35:012
1375109994926,12cyclictest14-21rcu_preempt19:35:012
1375107994928,18cyclictest1400313-21/usr/sbin/munin21:35:191
137510599486,5cyclictest0-21swapper/021:10:010
1375105994840,4cyclictest167350irq/118-8000000.ethernet-tx019:25:290
1375109994735,8cyclictest0-21swapper/222:50:012
1375109994733,11cyclictest311ktimers/219:50:142
1375105994738,6cyclictest1417271-21munin-plugin-st23:15:000
137510599471,42cyclictest1392072-21grep20:45:260
137510599471,41cyclictest0-21swapper/019:15:170
1375109994637,5cyclictest1413805-21munin-plugin-st22:55:012
1375109994626,10cyclictest0-21swapper/222:55:202
1375107994636,5cyclictest1421441-21grep23:35:311
1375107994632,8cyclictest1420594-21grep23:30:331
137510599462,42cyclictest0-21swapper/000:05:120
137510599461,9cyclictest0-21swapper/000:35:010
137510599461,43cyclictest0-21swapper/023:45:220
1375107994531,8cyclictest1425626-21grep00:00:291
137510599452,4cyclictest1410307-21users22:30:320
137510599452,37cyclictest1382057-21sed19:45:290
1375105994514,4cyclictest1393346-21gpg-connect-age20:55:010
1375105994514,4cyclictest1393346-21gpg-connect-age20:55:010
1375109994434,5cyclictest0-21swapper/221:30:242
137510799442,26cyclictest0-21swapper/122:15:021
1375107994411,27cyclictest231ktimers/100:05:231
1375105994411,30cyclictest1389814-21latency_hist20:35:000
1375109994333,6cyclictest1405918-21grep22:05:332
1375109994331,8cyclictest0-21swapper/219:45:302
1375109994329,8cyclictest0-21swapper/200:15:302
1375107994334,5cyclictest1408523-21grep22:20:311
1375105994334,6cyclictest1380334-21grep19:35:280
1375105994331,8cyclictest1401692-21unixbench_multi21:40:310
1375105994329,11cyclictest1390656-21sendmail20:39:590
137510599431,39cyclictest1404779-21if_eth022:00:210
137510599431,36cyclictest0-21swapper/000:00:010
1375109994223,13cyclictest311ktimers/220:55:122
1375107994233,5cyclictest1422251-21unixbench_multi23:40:301
1375107994226,9cyclictest0-21swapper/119:15:281
137510599422,4cyclictest1380897-21irqstats19:40:240
137510599421,6cyclictest1410795-21irqstats22:35:240
137510599421,5cyclictest1412005-21users22:40:310
1375109994133,5cyclictest14-21rcu_preempt21:55:002
1375109994133,4cyclictest0-21swapper/200:00:172
1375109994131,6cyclictest0-21swapper/219:25:282
1375109994131,5cyclictest0-21swapper/220:40:282
1375107994132,6cyclictest231ktimers/121:55:271
1375107994129,7cyclictest1405126-21grep22:00:281
1375107994128,9cyclictest0-21swapper/119:10:271
1375107994125,8cyclictest0-21swapper/120:35:301
137510799412,32cyclictest1413800-21apt-get22:55:051
1375107994122,10cyclictest0-21swapper/119:55:281
137510799411,33cyclictest1382191-21latency_hist19:50:011
1375105994134,4cyclictest20650irq/252-8000000.ethernet23:00:290
1375105994131,6cyclictest20850irq/208-8000000.ethernet00:20:280
137510599411,4cyclictest1420309-21memory23:30:280
137510599411,4cyclictest1406528-21memory22:10:270
137510599411,35cyclictest0-21swapper/019:25:000
1375109994028,7cyclictest0-21swapper/220:35:302
1375109994027,8cyclictest0-21swapper/222:25:292
1375109994025,11cyclictest311ktimers/219:55:142
137510799408,27cyclictest22-21rcuc/123:55:201
1375107994030,6cyclictest1428124-21grep00:15:301
1375107994027,9cyclictest0-21swapper/121:45:291
1375107994026,9cyclictest0-21swapper/122:30:321
1375107994025,8cyclictest0-21swapper/119:40:291
1375107994023,10cyclictest0-21swapper/120:20:291
1375107994017,3cyclictest2-21kthreadd20:04:221
1375105994030,7cyclictest0-21swapper/022:55:270
137510599401,4cyclictest1421881-21perl23:40:210
137510599401,4cyclictest0-21swapper/020:00:170
137510599401,37cyclictest0-21swapper/023:50:190
137510599401,37cyclictest0-21swapper/023:25:180
137510599401,37cyclictest0-21swapper/022:25:270
137510599401,36cyclictest1418961-21cron23:25:010
137510599401,36cyclictest0-21swapper/021:00:280
137510599401,34cyclictest0-21swapper/000:30:010
137510599401,2cyclictest0-21swapper/000:15:020
137510999393,18cyclictest30-21rcuc/223:05:012
1375109993929,5cyclictest0-21swapper/220:30:272
1375109993928,7cyclictest1418009-21grep23:15:292
1375109993927,8cyclictest0-21swapper/219:35:272
1375107993932,4cyclictest231ktimers/121:00:121
1375107993930,5cyclictest1409393-21grep22:25:301
1375107993929,7cyclictest0-21swapper/120:55:121
1375107993928,8cyclictest231ktimers/120:05:281
1375107993925,8cyclictest0-21swapper/120:25:301
1375107993922,11cyclictest231ktimers/120:40:201
1375105993932,4cyclictest20850irq/208-8000000.ethernet23:20:000
1375105993931,4cyclictest0-21swapper/019:55:210
1375105993921,16cyclictest0-21swapper/000:35:250
137510599391,36cyclictest0-21swapper/022:45:300
137510599391,2cyclictest0-21swapper/020:45:010
137510599390,30cyclictest0-21swapper/020:10:190
137510599390,30cyclictest0-21swapper/020:10:190
1375109993828,6cyclictest1431565-21grep00:35:302
1375109993820,16cyclictest311ktimers/220:05:122
137510999381,4cyclictest0-21swapper/219:20:022
1375107993830,5cyclictest0-21swapper/100:25:001
1375107993829,6cyclictest231ktimers/120:30:181
1375107993828,7cyclictest231ktimers/121:15:111
1375107993826,7cyclictest1395749-21grep21:05:281
1375107993825,6cyclictest231ktimers/122:41:321
1375107993824,9cyclictest0-21swapper/121:50:311
1375105993831,4cyclictest1382959-21munin-plugin-st19:54:590
1375105993821,15cyclictest0-21swapper/020:25:150
137510599381,35cyclictest0-21swapper/022:18:040
1375109993727,5cyclictest0-21swapper/221:15:292
1375109993724,8cyclictest0-21swapper/219:10:282
1375109993723,10cyclictest0-21swapper/223:14:592
1375109993723,10cyclictest0-21swapper/221:35:282
1375107993726,7cyclictest0-21swapper/120:45:291
1375107993723,9cyclictest0-21swapper/100:35:301
1375107993723,10cyclictest0-21swapper/122:05:341
1375105993731,3cyclictest167350irq/118-8000000.ethernet-tx021:50:150
1375105993730,5cyclictest20850irq/208-8000000.ethernet22:00:010
1375105993730,4cyclictest20850irq/208-8000000.ethernet19:30:320
1375105993730,4cyclictest20850irq/208-8000000.ethernet19:30:320
137510599371,34cyclictest0-21swapper/000:00:210
1375109993626,5cyclictest0-21swapper/220:50:272
1375109993626,5cyclictest0-21swapper/220:50:272
1375109993625,7cyclictest0-21swapper/223:20:312
1375109993625,5cyclictest0-21swapper/220:45:292
1375109993619,8cyclictest0-21swapper/223:25:292
1375107993628,5cyclictest231ktimers/121:25:221
1375107993628,5cyclictest231ktimers/121:25:221
1375107993628,5cyclictest231ktimers/120:15:211
1375107993627,5cyclictest231ktimers/121:15:001
1375107993626,5cyclictest167450irq/126-8000000.ethernet-tx122:47:181
1375107993626,5cyclictest0-21swapper/123:10:211
1375107993625,7cyclictest0-21swapper/119:30:321
1375107993625,7cyclictest0-21swapper/119:30:311
1375107993625,5cyclictest0-21swapper/119:50:171
137510799361,6cyclictest0-21swapper/123:30:001
1375107993614,15cyclictest22-21rcuc/121:40:211
137510599361,33cyclictest0-21swapper/023:35:560
1375109993525,7cyclictest1416326-21grep23:05:282
1375109993525,7cyclictest1416326-21grep23:05:272
1375109993524,6cyclictest0-21swapper/221:00:302
1375109993523,8cyclictest0-21swapper/221:55:272
1375109993521,7cyclictest0-21swapper/220:25:312
1375109993518,10cyclictest0-21swapper/223:50:312
1375107993527,5cyclictest231ktimers/123:00:191
1375107993526,6cyclictest231ktimers/123:50:271
137510799352,30cyclictest0-21swapper/121:30:341
137510799351,27cyclictest1417468-21/usr/sbin/munin23:15:191
1375105993529,4cyclictest0-21swapper/021:45:150
1375105993529,4cyclictest0-21swapper/020:05:150
1375105993521,8cyclictest0-21swapper/021:15:190
137510599351,32cyclictest0-21swapper/023:05:150
137510599351,32cyclictest0-21swapper/023:05:150
1375109993428,4cyclictest1395808-21munin-plugin-st21:10:002
1375109993424,5cyclictest1430749-21grep00:30:322
1375109993423,7cyclictest0-21swapper/222:40:312
1375109993423,7cyclictest0-21swapper/200:25:292
1375109993420,10cyclictest0-21swapper/222:05:012
1375109993419,8cyclictest30-21rcuc/221:10:142
1375109993415,16cyclictest311ktimers/221:40:162
137510999341,27cyclictest0-21swapper/223:40:182
1375109993411,4cyclictest8321systemd-network00:14:472
1375107993422,7cyclictest231ktimers/122:10:181
1375107993420,10cyclictest0-21swapper/100:30:321
1375107993418,10cyclictest0-21swapper/123:20:301
137510799341,27cyclictest0-21swapper/100:25:231
137510599340,2cyclictest1387457-21ssh20:20:180
1375109993326,4cyclictest1398427-21cron21:25:002
1375109993323,7cyclictest1386980-21sendmail_mailqu20:15:272
1375109993321,7cyclictest0-21swapper/220:20:292
1375109993315,11cyclictest311ktimers/220:00:122
1375109993314,4cyclictest832-21systemd-network21:25:242
1375109993314,4cyclictest832-21systemd-network21:25:232
1375107993325,5cyclictest1397793-21/usr/sbin/munin21:20:231
1375107993321,7cyclictest0-21swapper/123:05:251
1375107993321,7cyclictest0-21swapper/123:05:251
1375107993318,10cyclictest0-21swapper/120:15:021
1375107993318,10cyclictest0-21swapper/120:15:021
1375109993220,7cyclictest0-21swapper/223:55:292
1375109993210,4cyclictest832-21systemd-network23:45:082
1375105993222,7cyclictest0-21swapper/019:10:270
137510599321,28cyclictest1428003-21cut00:15:290
1375109993125,4cyclictest0-21swapper/222:18:222
1375109993121,7cyclictest1660-21snmpd22:10:292
1375109993121,7cyclictest0-21swapper/222:30:312
1375107993122,6cyclictest0-21swapper/120:50:271
1375107993122,6cyclictest0-21swapper/120:50:271
1375107993121,7cyclictest231ktimers/119:35:131
1375105993110,13cyclictest0-21swapper/019:10:010
137510999309,4cyclictest832-21systemd-network00:22:042
137510999309,15cyclictest311ktimers/219:40:122
1375109993021,5cyclictest0-21swapper/223:30:332
137510999301,24cyclictest0-21swapper/222:20:182
1375109993011,4cyclictest832-21systemd-network21:46:152
1375109992923,3cyclictest0-21swapper/223:35:192
1375109992918,8cyclictest0-21swapper/220:10:182
1375109992918,8cyclictest0-21swapper/220:10:182
1375107992919,6cyclictest0-21swapper/122:35:301
1375109992618,6cyclictest0-21swapper/219:25:012
1375107992615,6cyclictest231ktimers/119:10:011
1375109992214,4cyclictest0-21swapper/219:10:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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