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2026-04-15 - 18:14

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 Wed Apr 15, 2026 12:44:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2341439998253,20cyclictest231ktimers/109:30:081
2341439998253,20cyclictest231ktimers/109:30:081
2341440996763,2cyclictest0-21swapper/211:35:192
234143699673,24cyclictest0-21swapper/011:35:010
234143999644,50cyclictest2365660-21rm09:30:001
2341439996044,10cyclictest2391089-21munin-plugin-st12:00:001
234143699601,56cyclictest0-21swapper/009:05:160
234144099585,22cyclictest30-21rcuc/210:35:012
2341439995713,9cyclictest2396160-21apt-get12:30:011
234143699529,9cyclictest2342405-21munin-node07:15:010
234143699529,9cyclictest2342405-21munin-node07:15:010
2341436995143,4cyclictest2375894-21munin-plugin-st10:30:000
2341440995042,5cyclictest2384339-21sendmail11:20:002
2341436995042,4cyclictest167350irq/118-8000000.ethernet-tx007:15:150
2341436995042,4cyclictest167350irq/118-8000000.ethernet-tx007:15:140
2341440994939,7cyclictest2389405-21munin-plugin-st11:50:002
2341440994939,7cyclictest2389405-21munin-plugin-st11:50:002
2341436994942,4cyclictest167350irq/118-8000000.ethernet-tx011:25:230
2341439994828,14cyclictest0-21swapper/110:40:281
2341439994818,14cyclictest2348805-21/usr/sbin/munin07:50:171
2341436994840,4cyclictest167350irq/118-8000000.ethernet-tx010:50:010
2341440994734,9cyclictest2365504-21apt-key09:30:012
2341440994727,15cyclictest311ktimers/209:30:112
2341440994727,15cyclictest311ktimers/209:30:112
2341439994734,9cyclictest1283-21cron09:24:591
2341439994619,7cyclictest2344296-21apt-get07:25:001
234143699466,36cyclictest0-21swapper/012:25:200
234143699461,2cyclictest0-21swapper/009:30:000
2341440994535,6cyclictest0-21swapper/209:35:282
2341436994533,8cyclictest0-21swapper/009:35:280
234143699451,4cyclictest2375199-21sed10:25:020
2341440994432,6cyclictest2362884-21grep09:10:272
2341440994429,11cyclictest0-21swapper/207:45:222
2341440994415,3cyclictest2378972-21phc2sys-jitter10:45:272
2341439994432,7cyclictest2397009-21grep12:30:271
2341439994431,8cyclictest0-21swapper/109:10:011
2341439994429,9cyclictest0-21swapper/107:30:001
2341439994428,10cyclictest0-21swapper/111:35:201
2341439994428,10cyclictest0-21swapper/110:30:271
234143699442,5cyclictest2380384-21diskstats10:55:160
234144099436,29cyclictest30-21rcuc/207:10:052
234144099436,29cyclictest30-21rcuc/207:10:052
2341440994330,9cyclictest0-21swapper/207:40:272
2341440994329,9cyclictest0-21swapper/208:25:282
2341440994325,13cyclictest311ktimers/210:10:122
2341439994331,8cyclictest2368947-21grep09:45:281
2341436994336,4cyclictest167350irq/118-8000000.ethernet-tx009:58:430
2341436994336,4cyclictest167350irq/118-8000000.ethernet-tx009:58:430
2341436994335,4cyclictest20650irq/252-8000000.ethernet11:50:160
234143699431,5cyclictest2373725-21irqstats10:15:200
2341440994234,5cyclictest2388566-21munin-plugin-st11:45:002
2341440994228,9cyclictest0-21swapper/209:00:192
2341439994228,9cyclictest0-21swapper/112:15:201
234143999421,14cyclictest22-21rcuc/108:05:011
2341436994238,2cyclictest0-21swapper/008:40:260
2341436994238,2cyclictest0-21swapper/008:20:120
2341436994236,3cyclictest0-21swapper/012:30:050
2341436994235,5cyclictest2351984-21munin-plugin-st08:09:590
2341436994234,4cyclictest167350irq/118-8000000.ethernet-tx008:55:000
234143699422,4cyclictest2345726-21meminfo07:30:220
234143699421,39cyclictest0-21swapper/008:35:260
234143699421,39cyclictest0-21swapper/008:35:260
234143699421,38cyclictest2397468-21perl12:35:200
2341440994133,5cyclictest2369876-21kworker/u8:1-events_power_efficient10:25:012
2341440994133,5cyclictest0-21swapper/208:40:292
2341440994123,12cyclictest311ktimers/210:40:132
2341439994126,10cyclictest0-21swapper/110:25:211
234143999411,4cyclictest0-21swapper/108:55:011
2341436994134,4cyclictest20650irq/252-8000000.ethernet10:35:010
2341436994133,4cyclictest167350irq/118-8000000.ethernet-tx007:25:250
2341436994133,4cyclictest0-21swapper/010:35:300
2341436994128,9cyclictest0-21swapper/007:20:270
234143699411,5cyclictest2393244-21irqstats12:10:210
234143699411,5cyclictest2368182-21users09:40:280
234143699411,3cyclictest0-21swapper/011:03:460
234143699411,38cyclictest0-21swapper/010:40:270
2341440994023,12cyclictest311ktimers/208:15:132
2341440994021,13cyclictest311ktimers/209:15:122
2341439994034,4cyclictest2343447-21munin-plugin-st07:20:001
2341439994034,4cyclictest2343447-21munin-plugin-st07:20:001
234143999401,2cyclictest0-21swapper/111:45:011
234143699408,3cyclictest2366420-21apt-get09:35:000
234143699408,3cyclictest2366420-21apt-get09:35:000
2341436994035,2cyclictest0-21swapper/012:20:160
234143699402,4cyclictest2369048-21munin-run09:50:010
234143699402,4cyclictest2350260-21users07:55:310
234143699402,4cyclictest2350260-21users07:55:300
234143699401,4cyclictest2393876-21df12:15:160
234143699401,36cyclictest2353321-21meminfo08:15:240
234143699401,2cyclictest0-21swapper/010:10:010
2341440993929,7cyclictest0-21swapper/208:20:272
2341440993928,6cyclictest0-21swapper/210:35:262
2341440993921,13cyclictest311ktimers/208:00:142
2341440993920,13cyclictest311ktimers/212:30:092
2341436993929,6cyclictest0-21swapper/011:10:290
2341436993928,8cyclictest2349449-21munin-plugin-st07:55:000
2341436993927,8cyclictest0-21swapper/011:45:260
2341436993927,8cyclictest0-21swapper/011:45:260
2341436993923,14cyclictest167350irq/118-8000000.ethernet-tx007:45:220
2341436993923,14cyclictest0-21swapper/008:30:270
2341436993922,15cyclictest0-21swapper/011:55:130
234143699391,4cyclictest0-21swapper/009:15:300
234143699391,3cyclictest0-21swapper/011:40:300
234143699391,3cyclictest0-21swapper/010:05:240
234143699391,36cyclictest0-21swapper/010:50:190
234143699391,36cyclictest0-21swapper/009:20:270
2341440993830,4cyclictest0-21swapper/209:00:012
2341440993829,5cyclictest2362062-21grep09:05:282
2341440993826,9cyclictest0-21swapper/211:00:272
2341440993826,8cyclictest0-21swapper/210:05:272
2341440993822,10cyclictest311ktimers/211:05:132
2341440993821,9cyclictest0-21swapper/212:10:262
2341440993821,11cyclictest311ktimers/212:20:122
2341440993820,11cyclictest0-21swapper/207:10:012
2341440993819,12cyclictest30-21rcuc/210:55:012
234143999388,8cyclictest0-21swapper/108:20:011
2341436993832,4cyclictest20850irq/208-8000000.ethernet09:00:000
2341436993831,4cyclictest20850irq/208-8000000.ethernet08:00:210
234143699381,35cyclictest0-21swapper/009:50:190
234143699381,35cyclictest0-21swapper/008:10:220
2341436993812,24cyclictest0-21swapper/007:44:330
2341440993722,11cyclictest311ktimers/211:10:132
2341440993717,15cyclictest311ktimers/207:55:142
2341440993717,15cyclictest311ktimers/207:55:142
2341439993725,7cyclictest0-21swapper/108:35:261
2341439993725,7cyclictest0-21swapper/108:35:261
2341439993713,17cyclictest0-21swapper/109:40:181
234143699371,34cyclictest0-21swapper/012:00:250
234143699371,34cyclictest0-21swapper/008:25:220
2341440993628,5cyclictest0-21swapper/211:25:002
2341440993620,9cyclictest0-21swapper/212:05:272
2341440993618,13cyclictest311ktimers/212:00:112
234144099361,4cyclictest0-21swapper/208:10:012
2341439993629,4cyclictest2341430-21cyclictest09:17:001
2341439993625,6cyclictest2386761-21grep11:30:271
234143999361,3cyclictest0-21swapper/109:55:011
2341436993632,3cyclictest0-21swapper/011:05:220
2341436993629,4cyclictest0-21swapper/007:35:120
234143699362,32cyclictest0-21swapper/009:00:270
234143699361,33cyclictest0-21swapper/011:40:010
234143699361,33cyclictest0-21swapper/011:22:170
234143699361,33cyclictest0-21swapper/011:15:080
2341440993526,5cyclictest0-21swapper/207:25:282
2341440993524,8cyclictest0-21swapper/209:40:252
2341440993520,10cyclictest0-21swapper/211:55:212
2341440993518,12cyclictest311ktimers/209:50:112
2341439993528,4cyclictest167450irq/126-8000000.ethernet-tx111:25:111
2341439993523,8cyclictest0-21swapper/107:30:271
2341439993523,7cyclictest2393105-21sh12:10:181
234143999351,2cyclictest0-21swapper/109:15:011
234143699351,4cyclictest0-21swapper/010:05:010
234143699351,32cyclictest0-21swapper/009:12:470
234143699351,32cyclictest0-21swapper/008:46:300
2341440993426,5cyclictest0-21swapper/207:35:282
2341440993426,4cyclictest0-21swapper/212:35:262
2341440993424,7cyclictest2371589-21munin-plugin-st10:05:002
2341440993424,7cyclictest0-21swapper/209:45:272
2341440993424,7cyclictest0-21swapper/208:35:002
2341440993423,8cyclictest0-21swapper/208:45:262
2341440993422,9cyclictest23521821/usr/sbin/munin08:10:152
2341440993418,12cyclictest311ktimers/209:55:132
2341440993418,12cyclictest311ktimers/209:55:132
2341440993416,11cyclictest311ktimers/211:30:122
2341439993425,6cyclictest0-21swapper/108:25:291
2341439993425,5cyclictest0-21swapper/111:45:191
2341439993425,5cyclictest0-21swapper/111:45:191
234143999342,2cyclictest0-21swapper/110:25:021
2341439993419,8cyclictest2350177-21unixbench_multi07:55:291
2341439993419,8cyclictest2350177-21unixbench_multi07:55:291
234143999341,4cyclictest0-21swapper/108:35:001
2341440993326,5cyclictest2343339-21grep07:15:282
2341440993326,5cyclictest2343339-21grep07:15:282
2341440993325,5cyclictest2390153-21grep11:50:282
234144099332,4cyclictest2357012-21users08:35:282
234144099332,4cyclictest2357012-21users08:35:282
234144099331,26cyclictest0-21swapper/210:25:192
234144099331,26cyclictest0-21swapper/207:50:152
2341439993323,7cyclictest2370090-21/usr/sbin/munin09:55:101
2341439993323,7cyclictest2370090-21/usr/sbin/munin09:55:101
2341439993318,9cyclictest0-21swapper/110:35:221
234143999331,7cyclictest0-21swapper/111:00:011
234143999331,2cyclictest0-21swapper/110:50:011
234143699337,24cyclictest2392145-21/usr/sbin/munin12:05:110
2341436993324,6cyclictest0-21swapper/007:10:020
234144099324,21cyclictest2344218-21unixbench_multi07:20:282
2341440993223,6cyclictest2345997-21grep07:30:272
2341439993224,4cyclictest0-21swapper/110:05:151
2341439993222,5cyclictest0-21swapper/108:10:251
2341439993219,8cyclictest2374100-21cron10:20:001
2341439993219,8cyclictest0-21swapper/110:10:271
234144099315,15cyclictest2385943-21sed11:25:272
2341439993123,6cyclictest2385178-21sshd11:23:561
2341439993123,5cyclictest0-21swapper/111:15:001
2341439993122,6cyclictest2346873-21grep07:35:281
2341439993119,8cyclictest0-21swapper/111:10:021
234144099304,21cyclictest32-21ksoftirqd/210:55:142
234144099303,19cyclictest2396374-21latency_hist12:30:022
2341440993013,5cyclictest167550irq/134-8000000.ethernet-tx210:18:392
2341439993020,8cyclictest1660-21snmpd12:39:081
2341439993017,9cyclictest0-21swapper/110:50:201
234143999301,27cyclictest0-21swapper/109:35:191
234143999301,27cyclictest0-21swapper/108:05:221
234143999301,24cyclictest0-21swapper/108:55:101
234144099291,26cyclictest0-21swapper/209:20:252
2341439992922,5cyclictest2360637-21/usr/sbin/munin09:00:231
2341439992921,6cyclictest2341672-21/usr/sbin/munin07:10:261
2341439992921,6cyclictest2341672-21/usr/sbin/munin07:10:261
2341439992921,4cyclictest0-21swapper/108:20:011
2341439992920,6cyclictest1653-21lldpd11:15:271
2341439992919,7cyclictest2341489-21latency_hist07:10:011
2341439992919,7cyclictest0-21swapper/110:00:251
234143999291,26cyclictest0-21swapper/111:01:111
2341439992818,6cyclictest0-21swapper/112:20:231
2341439992815,8cyclictest0-21swapper/107:50:021
234143999281,21cyclictest0-21swapper/112:00:121
2341440992720,3cyclictest0-21swapper/208:55:022
234144099271,23cyclictest1660-21snmpd12:19:042
234143999273,13cyclictest2347125-21/usr/sbin/munin07:40:191
2341439992719,4cyclictest231ktimers/108:40:211
2341439992619,3cyclictest2358898-21latency_hist08:50:021
2341439992514,8cyclictest0-21swapper/111:50:281
2341439992415,6cyclictest231ktimers/112:05:181
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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