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2026-04-30 - 11:24

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 Thu Apr 30, 2026 00:44:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2580209998578,4cyclictest15-21rcuc/020:05:000
2580212997756,15cyclictest0-21swapper/122:20:011
258021299653,19cyclictest2584126-21/usr/sbin/munin19:30:191
2580209996055,2cyclictest0-21swapper/000:30:060
258021399581,34cyclictest0-21swapper/222:25:012
258021399573,32cyclictest14-21rcu_preempt00:40:012
258020999531,50cyclictest0-21swapper/019:10:110
2580213995223,15cyclictest30-21rcuc/222:40:012
2580209995034,13cyclictest15-21rcuc/023:20:120
2580209995031,16cyclictest167350irq/118-8000000.ethernet-tx022:20:290
258020999501,8cyclictest2612223-21latency_hist22:30:010
2580212994937,9cyclictest0-21swapper/119:30:011
2580212994913,4cyclictest2605287-21apt-get21:35:021
258020999498,9cyclictest2625289-21apt-get00:30:010
2580213994841,5cyclictest311ktimers/222:10:152
2580213994838,6cyclictest2588087-21grep19:50:272
2580209994816,28cyclictest15-21rcuc/019:40:210
258020999475,4cyclictest0-21swapper/019:55:010
258020999472,6cyclictest2602667-21munin-run21:20:010
258021399466,29cyclictest30-21rcuc/219:20:022
2580213994634,8cyclictest0-21swapper/200:30:272
2580213994631,11cyclictest2623147-21cat00:10:012
2580213994630,9cyclictest2623857-21grep00:10:272
2580212994632,9cyclictest0-21swapper/120:35:001
2580209994630,11cyclictest0-21swapper/020:15:270
258020999462,6cyclictest1321-21sendmail-mta20:33:120
258020999462,5cyclictest2582520-21sh19:20:180
2580209994623,15cyclictest131ktimers/021:40:120
2580212994536,5cyclictest2613055-21munin-plugin-st22:35:001
258020999455,27cyclictest15-21rcuc/023:45:010
2580209994539,3cyclictest0-21swapper/023:40:020
2580209994539,3cyclictest0-21swapper/021:25:270
2580209994538,4cyclictest167350irq/118-8000000.ethernet-tx023:30:240
2580209994538,4cyclictest167350irq/118-8000000.ethernet-tx000:20:180
258020999452,40cyclictest0-21swapper/020:50:230
2580209994510,16cyclictest15-21rcuc/019:45:010
2580209994510,16cyclictest15-21rcuc/019:45:010
258021399447,20cyclictest30-21rcuc/222:30:012
2580213994435,5cyclictest0-21swapper/220:05:012
2580213994427,13cyclictest311ktimers/223:50:102
258021399441,38cyclictest0-21swapper/222:20:002
258021399441,24cyclictest0-21swapper/221:55:012
2580212994436,4cyclictest167450irq/126-8000000.ethernet-tx120:00:001
2580212994436,4cyclictest167450irq/126-8000000.ethernet-tx120:00:001
2580212994428,12cyclictest0-21swapper/120:35:301
2580212994426,11cyclictest0-21swapper/121:55:011
2580212994416,9cyclictest2605363-21apt-key21:35:011
2580213994328,7cyclictest311ktimers/200:00:132
258021399431,27cyclictest0-21swapper/219:50:012
258021399431,27cyclictest0-21swapper/219:50:002
258021399431,23cyclictest0-21swapper/219:10:002
258020999434,5cyclictest2600040-21grep21:00:280
258020999433,5cyclictest0-21swapper/000:00:220
2580209994335,5cyclictest0-21swapper/023:50:130
2580209994335,4cyclictest2599015-21grep20:55:270
2580209994328,10cyclictest131ktimers/022:00:160
258020999432,5cyclictest2588407-21df_inode19:55:170
258020999432,5cyclictest2588407-21df_inode19:55:160
258020999431,9cyclictest0-21swapper/022:19:590
258020999431,4cyclictest2595884-21users20:35:310
258020999431,4cyclictest15-21rcuc/021:45:200
2580213994231,6cyclictest2592489-21grep20:15:272
258021399421,33cyclictest0-21swapper/220:30:012
258021399421,23cyclictest0-21swapper/221:25:012
2580212994233,5cyclictest2607044-21grep21:40:281
258020999424,36cyclictest0-21swapper/022:40:220
2580209994235,4cyclictest0-21swapper/019:35:250
2580209994234,5cyclictest0-21swapper/020:45:240
2580209994234,5cyclictest0-21swapper/020:45:240
258020999421,4cyclictest0-21swapper/020:30:010
258020999421,39cyclictest0-21swapper/000:10:200
2580209994131,7cyclictest0-21swapper/021:35:230
258020999413,10cyclictest15-21rcuc/019:20:010
258020999412,4cyclictest2610522-21irqstats22:10:220
2580209994124,15cyclictest0-21swapper/022:50:230
258020999412,3cyclictest2600650-21/usr/sbin/munin21:05:270
258020999412,35cyclictest2623152-21ls00:10:000
2580209994121,14cyclictest131ktimers/023:00:150
2580213994030,7cyclictest311ktimers/223:20:112
2580213994030,4cyclictest0-21swapper/220:40:022
258021399401,7cyclictest0-21swapper/222:40:012
258021399401,2cyclictest0-21swapper/219:40:022
258021299404,2cyclictest0-21swapper/123:20:011
2580212994032,5cyclictest2614017-21grep22:40:281
2580212994028,8cyclictest2621957-21sh00:00:001
2580212994027,9cyclictest0-21swapper/120:40:301
258020999401,37cyclictest0-21swapper/021:24:320
258020999401,35cyclictest2608605-21sendmail_mailtr21:50:280
2580213993931,5cyclictest0-21swapper/221:10:292
258021399391,5cyclictest0-21swapper/223:35:012
2580212993932,5cyclictest2611992-21munin-plugin-st22:25:001
2580212993929,6cyclictest2594116-21grep20:25:281
2580212993929,5cyclictest0-21swapper/119:20:271
2580212993928,6cyclictest0-21swapper/122:10:281
2580212993928,5cyclictest0-21swapper/123:40:191
2580212993925,8cyclictest0-21swapper/121:25:221
2580212993923,10cyclictest0-21swapper/122:00:271
258020999393,34cyclictest0-21swapper/020:10:140
2580209993932,4cyclictest0-21swapper/021:30:210
258020999392,34cyclictest2621963-21sendmail00:00:000
2580213993829,6cyclictest0-21swapper/220:00:012
2580213993829,6cyclictest0-21swapper/220:00:012
2580213993827,5cyclictest2602612-21grep21:15:272
2580213993826,8cyclictest0-21swapper/223:20:002
2580213993826,5cyclictest0-21swapper/220:05:292
2580213993826,5cyclictest0-21swapper/220:05:292
2580212993830,5cyclictest2624215-21sendmail00:20:001
2580212993830,4cyclictest167450irq/126-8000000.ethernet-tx119:15:271
258020999385,4cyclictest2626716-21gpgconf00:40:010
2580209993830,4cyclictest14-21rcu_preempt19:30:220
2580209993830,4cyclictest0-21swapper/020:05:260
2580209993830,4cyclictest0-21swapper/020:05:260
2580213993721,8cyclictest0-21swapper/221:30:182
2580213993713,13cyclictest311ktimers/220:55:122
2580212993722,10cyclictest0-21swapper/100:30:011
2580212993720,8cyclictest274-21systemd-journal22:10:001
2580209993731,3cyclictest0-21swapper/023:20:010
2580213993629,4cyclictest0-21swapper/220:40:302
2580213993628,4cyclictest2618661-21munin-plugin-st23:30:002
2580213993628,4cyclictest0-21swapper/223:45:002
2580213993626,6cyclictest0-21swapper/221:35:272
2580213993625,7cyclictest311ktimers/221:00:272
258021399361,26cyclictest0-21swapper/221:50:012
258021299363,12cyclictest22-21rcuc/121:05:011
2580212993628,4cyclictest2621732-21cron23:55:001
2580212993627,5cyclictest0-21swapper/123:10:281
2580212993624,7cyclictest2626540-21cut00:40:001
2580209993630,4cyclictest0-21swapper/019:25:180
2580209993627,5cyclictest2612944-21grep22:30:290
2580213993527,4cyclictest0-21swapper/220:20:262
2580213993526,5cyclictest0-21swapper/220:30:272
2580213993518,9cyclictest0-21swapper/200:30:012
2580213993512,12cyclictest472076-1kworker/2:0H+kblockd23:05:012
2580212993526,6cyclictest167450irq/126-8000000.ethernet-tx123:40:011
2580212993526,5cyclictest0-21swapper/123:30:281
2580212993526,5cyclictest0-21swapper/119:14:591
2580212993526,4cyclictest0-21swapper/119:40:291
2580212993524,8cyclictest2599298-21sendmail21:00:001
2580212993524,6cyclictest0-21swapper/100:10:001
2580212993524,4cyclictest167450irq/126-8000000.ethernet-tx123:00:011
2580212993518,13cyclictest0-21swapper/121:20:191
258021299351,28cyclictest0-21swapper/121:45:191
258020999351,32cyclictest2616512-21latency_hist23:10:010
258020999351,32cyclictest2616512-21latency_hist23:10:010
258020999351,32cyclictest0-21swapper/022:05:520
258020999351,32cyclictest0-21swapper/000:18:580
2580213993427,4cyclictest0-21swapper/219:30:182
2580212993424,5cyclictest0-21swapper/120:15:251
2580212993424,5cyclictest0-21swapper/120:10:191
258021299341,4cyclictest0-21swapper/119:35:261
258021299341,27cyclictest0-21swapper/123:20:261
258021299341,27cyclictest0-21swapper/123:00:111
2580209993429,3cyclictest0-21swapper/022:57:140
2580209993427,4cyclictest0-21swapper/022:35:010
258020999341,31cyclictest0-21swapper/021:57:530
2580213993316,13cyclictest0-21swapper/221:25:292
258021399331,4cyclictest0-21swapper/221:45:012
2580212993329,2cyclictest0-21swapper/122:40:011
2580212993313,10cyclictest2580206-21cyclictest21:10:111
2580209993323,7cyclictest0-21swapper/023:10:270
2580213993224,4cyclictest0-21swapper/223:30:212
2580213993221,9cyclictest0-21swapper/222:35:012
2580213993221,8cyclictest0-21swapper/220:50:012
2580213993221,8cyclictest0-21swapper/220:50:012
2580213993220,8cyclictest0-21swapper/223:10:252
2580212993221,7cyclictest2608985-21munin-plugin-st22:00:001
2580212993217,10cyclictest0-21swapper/122:55:011
2580212993216,11cyclictest0-21swapper/121:05:011
258020999323,6cyclictest2593296-21grep20:20:280
2580209993226,4cyclictest0-21swapper/022:48:450
2580209993226,2cyclictest0-21swapper/019:10:010
258020999321,5cyclictest2601255-21diskstats21:10:190
258020999321,29cyclictest0-21swapper/023:28:020
2580213993124,4cyclictest14-21rcu_preempt19:25:282
2580213993122,4cyclictest0-21swapper/219:40:282
2580213993120,6cyclictest30-21rcuc/200:25:012
258021399311,23cyclictest1660-21snmpd22:49:372
2580212993125,4cyclictest0-21swapper/100:20:191
258021299312,3cyclictest2598419-21users20:50:291
2580212993121,7cyclictest0-21swapper/100:30:201
258021299311,25cyclictest0-21swapper/119:45:261
258021299311,25cyclictest0-21swapper/119:45:261
2580213993023,4cyclictest311ktimers/220:15:002
2580213993019,8cyclictest0-21swapper/220:50:292
2580213993018,7cyclictest2580793-21ptp4l19:10:272
258021399301,27cyclictest0-21swapper/221:05:222
2580213993012,12cyclictest167550irq/134-8000000.ethernet-tx222:06:282
2580212993024,4cyclictest0-21swapper/120:05:031
2580212993024,4cyclictest0-21swapper/120:05:031
2580212993022,4cyclictest0-21swapper/123:50:011
2580212993022,4cyclictest0-21swapper/123:50:011
258021299301,27cyclictest0-21swapper/100:00:281
258020999301,27cyclictest0-21swapper/023:45:470
258020999301,27cyclictest0-21swapper/023:45:460
258020999301,27cyclictest0-21swapper/020:40:160
2580213992914,4cyclictest167550irq/134-8000000.ethernet-tx223:47:282
2580213992914,4cyclictest167550irq/134-8000000.ethernet-tx223:47:282
258021399291,23cyclictest0-21swapper/200:16:192
258021299299,12cyclictest2589287-21/usr/sbin/munin20:00:181
2580212992920,6cyclictest2597501-21grep20:45:291
2580212992920,6cyclictest2597501-21grep20:45:291
2580212992920,6cyclictest0-21swapper/119:55:001
258021299291,22cyclictest1653-21lldpd23:25:581
2580213992816,9cyclictest30-21rcuc/222:50:282
2580213992712,13cyclictest167550irq/134-8000000.ethernet-tx222:01:272
2580212992719,5cyclictest2602020-21sshd21:15:041
2580213992617,6cyclictest0-21swapper/223:10:012
2580213992617,6cyclictest0-21swapper/223:10:012
2580213992617,5cyclictest0-21swapper/223:00:022
2580212992615,8cyclictest0-21swapper/100:10:181
2580213992521,3cyclictest0-21swapper/223:58:362
2580213992518,5cyclictest0-21swapper/222:00:012
2580213992515,5cyclictest0-21swapper/219:25:012
258021299254,12cyclictest0-21swapper/120:20:281
2580212992412,7cyclictest2614332-21sshd22:45:041
2580212992317,4cyclictest0-21swapper/123:05:281
2580212992317,4cyclictest0-21swapper/123:05:281
2580212992316,5cyclictest2580211-21date19:09:591
258021299201,3cyclictest0-21swapper/122:26:321
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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