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2025-03-25 - 03:15

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 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 Mon Mar 24, 2025 12:44:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
241831899701,11cyclictest0-21swapper/208:00:012
241831899701,11cyclictest0-21swapper/208:00:012
2418314997062,5cyclictest0-21swapper/110:40:011
2418318996736,7cyclictest2459110-21sendmail11:40:002
2418314996510,18cyclictest0-21swapper/111:45:011
2418313996455,3cyclictest0-21swapper/007:35:130
241831399635,28cyclictest12-21ksoftirqd/011:50:010
241831399591,44cyclictest0-21swapper/009:20:130
241831399585,15cyclictest15-21rcuc/010:30:010
2418313995747,5cyclictest2466638-21munin-plugin-st12:35:010
2418313995622,13cyclictest12-21ksoftirqd/008:40:020
2418314995536,14cyclictest231ktimers/108:35:151
2418318995417,9cyclictest2459391-21/usr/sbin/munin11:40:182
2418314995434,17cyclictest22-21rcuc/107:20:011
2418314995434,17cyclictest22-21rcuc/107:20:001
2418313995446,4cyclictest0-21swapper/008:55:130
241831499532,20cyclictest22-21rcuc/110:35:011
2418314995234,14cyclictest231ktimers/111:15:101
241831399517,23cyclictest12-21ksoftirqd/007:20:010
241831399517,23cyclictest12-21ksoftirqd/007:20:010
2418318995040,6cyclictest2438515-21unixbench_multi09:10:322
2418314995031,13cyclictest231ktimers/110:10:091
2418314994827,14cyclictest231ktimers/112:00:131
241831399481,3cyclictest0-21swapper/010:00:130
241831499477,14cyclictest2419138-21munin-node07:15:011
2418314994726,16cyclictest231ktimers/108:15:161
241831399476,39cyclictest0-21swapper/007:10:010
2418313994722,18cyclictest20750irq/251-8000000.ethernet07:30:170
241831399471,23cyclictest2427513-21latency_hist08:05:010
2418314994631,9cyclictest0-21swapper/111:00:301
2418314994629,10cyclictest0-21swapper/112:10:011
2418313994615,25cyclictest0-21swapper/012:05:010
2418318994534,5cyclictest2422032-21munin-plugin-st07:30:002
2418318994530,8cyclictest0-21swapper/208:55:002
2418318994530,8cyclictest0-21swapper/208:55:002
2418314994525,13cyclictest231ktimers/109:55:161
241831399451,4cyclictest2447661-21grep10:15:280
241831899446,18cyclictest30-21rcuc/212:15:012
2418313994436,4cyclictest20950irq/209-8000000.ethernet11:30:010
2418313994434,5cyclictest0-21swapper/008:20:290
2418313994433,6cyclictest0-21swapper/007:15:020
2418313994418,22cyclictest0-21swapper/009:05:010
241831499439,16cyclictest22-21rcuc/112:15:021
2418314994329,9cyclictest0-21swapper/108:50:291
2418314994329,9cyclictest0-21swapper/108:50:281
2418314994325,12cyclictest0-21swapper/108:55:241
2418314994322,15cyclictest231ktimers/112:20:121
2418313994332,7cyclictest131ktimers/011:40:180
2418313994315,25cyclictest15-21rcuc/007:25:290
2418318994228,8cyclictest0-21swapper/208:25:212
241831399428,30cyclictest2444457-21dropbear09:55:210
2418313994233,5cyclictest0-21swapper/008:35:000
2418318994132,4cyclictest2450553-21grep10:35:292
2418318994129,8cyclictest0-21swapper/210:55:272
2418318994112,17cyclictest2442451-21/usr/sbin/munin09:40:202
2418314994126,9cyclictest0-21swapper/109:50:221
2418313994133,4cyclictest0-21swapper/009:05:210
2418313994133,4cyclictest0-21swapper/009:05:210
2418313994131,5cyclictest0-21swapper/011:55:000
2418313994131,5cyclictest0-21swapper/008:50:220
2418313994131,5cyclictest0-21swapper/008:50:220
2418313994128,9cyclictest0-21swapper/012:20:290
2418318994029,6cyclictest0-21swapper/209:50:242
2418318994029,5cyclictest0-21swapper/212:00:302
2418318994025,10cyclictest0-21swapper/208:40:262
2418314994027,9cyclictest0-21swapper/110:50:241
2418314994018,15cyclictest231ktimers/108:00:131
2418318993928,5cyclictest0-21swapper/210:20:322
241831899391,32cyclictest2427276-21grep08:00:292
241831499394,15cyclictest22-21rcuc/112:00:011
2418314993931,4cyclictest0-21swapper/112:10:241
2418314993931,4cyclictest0-21swapper/108:30:321
2418314993917,15cyclictest231ktimers/109:00:131
2418313993932,4cyclictest20950irq/209-8000000.ethernet08:25:120
2418313993928,8cyclictest131ktimers/010:35:260
2418313993916,21cyclictest0-21swapper/009:50:160
2418318993830,5cyclictest0-21swapper/211:30:172
2418318993829,5cyclictest0-21swapper/209:35:312
2418318993829,4cyclictest0-21swapper/208:20:212
2418318993826,8cyclictest0-21swapper/209:00:292
2418314993828,5cyclictest0-21swapper/111:35:291
2418314993823,10cyclictest0-21swapper/111:50:241
241831399383,6cyclictest2438626-21apt09:15:000
2418313993831,4cyclictest0-21swapper/008:40:210
2418313993829,6cyclictest2461856-21grep11:55:280
241831399381,32cyclictest2466965-21cat12:40:010
2418318993729,5cyclictest2465798-21munin-plugin-st12:30:002
2418318993726,7cyclictest0-21swapper/208:45:282
2418318993725,6cyclictest2420135-21grep07:15:272
2418318993725,6cyclictest2420135-21grep07:15:272
2418318993722,10cyclictest0-21swapper/211:15:192
241831899371,7cyclictest0-21swapper/208:15:012
2418314993730,4cyclictest2426470-21cron08:00:001
2418314993730,4cyclictest2426470-21cron07:59:591
241831499371,32cyclictest22-21rcuc/107:35:011
2418314993710,11cyclictest1666-21snmpd07:20:051
2418313993732,3cyclictest2454035-21rt-features11:00:290
241831399372,5cyclictest0-21swapper/010:50:000
2418313993724,9cyclictest0-21swapper/008:10:240
2418313993716,19cyclictest0-21swapper/010:10:160
241831399371,4cyclictest0-21swapper/011:35:010
2418313993712,23cyclictest14-21rcu_preempt07:50:130
2418318993629,4cyclictest168450irq/135-8000000.ethernet-tx210:00:142
2418314993630,3cyclictest2438629-21munin-plugin-st09:15:001
2418314993625,7cyclictest0-21swapper/108:10:261
2418314993612,15cyclictest2454658-21/usr/sbin/munin11:10:151
2418313993630,4cyclictest20950irq/209-8000000.ethernet09:38:140
2418313993630,4cyclictest20950irq/209-8000000.ethernet07:55:220
2418313993630,4cyclictest20950irq/209-8000000.ethernet07:55:220
2418313993628,3cyclictest14-21rcu_preempt10:30:240
2418313993624,8cyclictest2424796-21grep07:50:010
241831399361,33cyclictest0-21swapper/012:06:470
2418318993528,4cyclictest168450irq/135-8000000.ethernet-tx207:35:132
2418318993521,8cyclictest2432568-21grep08:35:302
241831899351,5cyclictest0-21swapper/208:10:012
2418314993528,4cyclictest0-21swapper/107:50:011
2418314993525,4cyclictest168350irq/127-8000000.ethernet-tx107:50:111
241831499352,30cyclictest2433459-21tail08:40:271
241831399353,5cyclictest15-21rcuc/007:20:210
2418313993528,4cyclictest20950irq/209-8000000.ethernet11:35:160
2418313993528,4cyclictest20950irq/209-8000000.ethernet10:50:230
2418313993521,7cyclictest15-21rcuc/011:15:120
2418313993516,2cyclictest203-21pr/ttyS209:20:000
241831399351,29cyclictest0-21swapper/012:26:120
241831899346,6cyclictest2449683-21apt-get10:35:012
2418318993427,4cyclictest0-21swapper/209:15:312
2418318993424,5cyclictest0-21swapper/207:10:222
241831899341,9cyclictest0-21swapper/209:50:012
241831899341,9cyclictest0-21swapper/209:50:012
241831899341,18cyclictest0-21swapper/210:45:002
241831899341,18cyclictest0-21swapper/210:45:002
241831499343,2cyclictest0-21swapper/110:05:011
2418314993428,4cyclictest2439468-21cron09:20:001
2418314993419,10cyclictest0-21swapper/111:20:311
2418314993419,10cyclictest0-21swapper/111:20:311
2418313993428,4cyclictest20950irq/209-8000000.ethernet10:55:280
2418313993427,5cyclictest12-21ksoftirqd/012:15:300
2418313993427,4cyclictest20950irq/209-8000000.ethernet08:15:200
2418313993427,2cyclictest0-21swapper/010:45:020
2418313993426,6cyclictest131ktimers/007:40:290
2418313993421,9cyclictest0-21swapper/009:40:300
241831399341,2cyclictest0-21swapper/009:30:010
2418318993326,4cyclictest0-21swapper/212:30:092
2418318993325,5cyclictest0-21swapper/207:30:312
241831899331,2cyclictest0-21swapper/209:00:012
241831899331,26cyclictest0-21swapper/212:20:172
241831899331,26cyclictest0-21swapper/207:50:012
241831499335,18cyclictest22-21rcuc/112:30:011
2418314993322,7cyclictest0-21swapper/108:20:191
241831499331,26cyclictest2440753-21/usr/sbin/munin09:30:181
241831399333,28cyclictest0-21swapper/008:45:230
2418313993327,4cyclictest20950irq/209-8000000.ethernet11:20:210
2418313993327,4cyclictest20950irq/209-8000000.ethernet11:20:210
2418313993327,3cyclictest0-21swapper/010:05:200
2418313993321,9cyclictest0-21swapper/011:10:230
2418313993321,8cyclictest0-21swapper/009:30:150
241831399330,2cyclictest203-21pr/ttyS211:10:000
2418318993225,4cyclictest2421125-21grep07:20:292
2418318993224,4cyclictest0-21swapper/207:40:332
2418318993220,8cyclictest2457400-21cat11:30:002
2418318993220,8cyclictest0-21swapper/211:00:222
2418318993212,4cyclictest27350irq/343-s-wl18xx10:12:292
2418314993226,3cyclictest0-21swapper/111:30:001
2418314993223,5cyclictest0-21swapper/108:45:281
2418314993220,9cyclictest0-21swapper/110:30:001
2418313993228,2cyclictest0-21swapper/010:45:010
2418313993219,7cyclictest15-21rcuc/010:20:140
241831399320,5cyclictest15-21rcuc/012:10:120
2418318993115,10cyclictest311ktimers/211:20:272
2418318993115,10cyclictest311ktimers/211:20:262
2418314993125,3cyclictest0-21swapper/109:20:281
2418314993118,8cyclictest231ktimers/109:05:271
2418314993118,8cyclictest231ktimers/109:05:271
2418314993117,10cyclictest231ktimers/107:35:141
2418318993024,4cyclictest168450irq/135-8000000.ethernet-tx210:17:242
2418318993021,6cyclictest2460989-21grep11:50:242
241831899301,4cyclictest2437290-21ssh09:05:202
241831899301,4cyclictest2437290-21ssh09:05:202
2418314993021,4cyclictest0-21swapper/107:30:021
241831499301,27cyclictest2447978-21/usr/sbin/munin10:20:311
241831499301,23cyclictest0-21swapper/110:05:131
241831899299,4cyclictest27350irq/343-s-wl18xx09:28:162
2418318992915,8cyclictest1666-21snmpd10:28:362
241831899291,26cyclictest0-21swapper/212:10:082
241831899291,26cyclictest0-21swapper/208:15:282
2418314992921,6cyclictest0-21swapper/112:30:161
2418314992917,8cyclictest0-21swapper/110:55:291
241831499291,13cyclictest24-21ksoftirqd/111:50:011
2418313992924,3cyclictest0-21swapper/009:49:190
2418313992924,3cyclictest0-21swapper/009:49:190
241831399291,17cyclictest0-21swapper/008:05:430
2418318992820,5cyclictest2441366-21awk09:30:242
2418318992818,7cyclictest0-21swapper/209:20:292
241831899281,21cyclictest0-21swapper/211:05:132
2418314992821,4cyclictest2443086-21cron09:45:001
2418314992819,4cyclictest0-21swapper/108:25:271
241831499281,12cyclictest22-21rcuc/108:08:011
2418318992719,4cyclictest0-21swapper/211:10:222
2418318992717,6cyclictest0-21swapper/208:30:312
241831899271,3cyclictest0-21swapper/207:50:082
241831899271,2cyclictest0-21swapper/211:55:232
241831899271,23cyclictest1666-21snmpd12:08:552
2418314992719,4cyclictest0-21swapper/111:30:301
2418314992718,6cyclictest0-21swapper/110:40:291
2418314992718,6cyclictest0-21swapper/110:40:291
2418314992718,4cyclictest0-21swapper/110:50:011
241831499271,24cyclictest2447118-21/usr/sbin/munin10:15:261
2418318992619,4cyclictest2444890-21grep09:55:302
241831899261,13cyclictest0-21swapper/212:35:032
241831499267,4cyclictest27250irq/343-wl18xx12:36:581
2418314992618,6cyclictest0-21swapper/111:10:011
241831499261,4cyclictest0-21swapper/109:40:011
241831499261,14cyclictest0-21swapper/107:41:061
241831899251,22cyclictest0-21swapper/210:08:322
241831899251,19cyclictest0-21swapper/210:50:042
241831499251,14cyclictest0-21swapper/109:26:351
241831499251,13cyclictest0-21swapper/109:45:461
241831499251,13cyclictest0-21swapper/109:45:461
2418318992315,5cyclictest311ktimers/210:50:002
241831899231,20cyclictest0-21swapper/211:47:452
241831899224,11cyclictest0-21swapper/207:10:002
2418314991911,5cyclictest2418400-21latency_hist07:10:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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