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2025-12-27 - 19:41

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 Sat Dec 27, 2025 12:44:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2252379997240,26cyclictest2257697-21munin-plugin-st07:40:001
2252379997240,26cyclictest2257697-21munin-plugin-st07:40:001
2252379997015,5cyclictest2277498-21/usr/sbin/munin09:35:181
225237699703,43cyclictest0-21swapper/011:15:000
2252379996732,29cyclictest0-21swapper/112:25:281
2252379996723,37cyclictest1283-21cron08:15:001
2252379996518,38cyclictest0-21swapper/112:10:001
2252379996518,38cyclictest0-21swapper/112:10:001
225237699625,17cyclictest15-21rcuc/011:00:020
2252380996144,12cyclictest311ktimers/208:20:012
2252379996118,30cyclictest0-21swapper/107:15:221
2252379996113,37cyclictest0-21swapper/109:00:171
2252376996155,4cyclictest131ktimers/007:20:010
2252379996019,20cyclictest1653-21lldpd07:35:001
2252379996017,34cyclictest0-21swapper/110:00:011
2252379996017,32cyclictest0-21swapper/112:05:001
2252379996016,36cyclictest2302071-21munin-plugin-st12:00:001
2252376996049,5cyclictest0-21swapper/009:25:120
2252376996049,5cyclictest0-21swapper/009:25:120
2252379995922,30cyclictest0-21swapper/110:15:291
2252379995919,35cyclictest0-21swapper/110:55:271
2252379995826,27cyclictest0-21swapper/110:05:021
2252379995823,28cyclictest0-21swapper/110:40:221
225237999573,15cyclictest2258495-21grep07:40:291
2252379995729,23cyclictest0-21swapper/108:45:281
2252379995719,29cyclictest0-21swapper/108:35:241
2252379995717,33cyclictest0-21swapper/111:05:271
2252379995716,4cyclictest2284229-21cron10:15:001
2252379995619,28cyclictest0-21swapper/109:19:591
2252379995617,4cyclictest2254982-21find07:20:291
2252379995617,4cyclictest2254982-21find07:20:291
2252379995531,18cyclictest2306372-21grep12:20:301
2252379995519,28cyclictest0-21swapper/112:30:201
2252376995518,35cyclictest131ktimers/007:35:000
2252379995418,31cyclictest0-21swapper/107:50:281
2252379995418,30cyclictest0-21swapper/108:20:291
2252379995413,6cyclictest0-21swapper/111:25:241
2252379995413,6cyclictest0-21swapper/110:25:261
2252379995413,6cyclictest0-21swapper/108:55:241
2252379995413,6cyclictest0-21swapper/108:55:241
2252376995446,4cyclictest0-21swapper/012:35:130
225237999533,8cyclictest2265823-21grep08:25:191
2252379995330,19cyclictest2287612-21cron10:35:001
225237999532,9cyclictest2294328-21head11:10:291
2252379995329,19cyclictest0-21swapper/108:00:001
225237999532,8cyclictest2288348-21grep10:35:281
225237999522,7cyclictest2305518-21grep12:15:281
225237999522,10cyclictest2297784-21sed11:30:281
2252379995220,28cyclictest2283205-21sshd10:05:291
2252379995212,5cyclictest0-21swapper/111:45:331
225237999514,14cyclictest2259467-21cron07:50:001
2252379995137,8cyclictest2261899-21grep08:00:291
225237999512,11cyclictest2273022-21head09:05:271
2252379995116,27cyclictest0-21swapper/112:35:291
2252379995113,30cyclictest0-21swapper/109:30:211
2252379995112,28cyclictest0-21swapper/111:25:011
2252376995141,2cyclictest0-21swapper/009:15:120
2252376995124,20cyclictest20650irq/252-8000000.ethernet10:00:050
225237999508,7cyclictest2295097-21grep11:15:301
225237999502,15cyclictest2304301-21cut12:10:201
225237999502,15cyclictest2304301-21cut12:10:201
225237999502,11cyclictest2290934-21unixbench_singl10:50:291
2252379995013,4cyclictest0-21swapper/110:20:301
2252379995013,4cyclictest0-21swapper/107:10:261
2252376995031,16cyclictest167350irq/118-8000000.ethernet-tx009:10:230
225237999495,11cyclictest0-21swapper/108:05:271
225237999495,11cyclictest0-21swapper/108:05:271
2252379994913,30cyclictest0-21swapper/107:30:001
225237999482,14cyclictest2300743-21cut11:50:201
225237999482,14cyclictest2300743-21cut11:50:191
225237999482,14cyclictest2278891-21grep09:40:311
2252379994820,22cyclictest0-21swapper/109:25:261
2252379994820,22cyclictest0-21swapper/109:25:261
225237999481,41cyclictest0-21swapper/108:15:261
2252376994841,4cyclictest167350irq/118-8000000.ethernet-tx007:55:010
2252376994835,10cyclictest2281520-21sendmail10:00:010
2252376994823,13cyclictest15-21rcuc/008:20:010
225238099474,38cyclictest30-21rcuc/212:20:012
2252380994728,10cyclictest0-21swapper/208:45:012
2252380994728,10cyclictest0-21swapper/208:45:012
225237999475,8cyclictest2280558-21unixbench_multi09:50:281
225237999473,10cyclictest2290104-21head10:45:291
225237999472,12cyclictest2292588-21grep11:00:291
225237999472,11cyclictest2279780-21grep09:45:301
225237999472,11cyclictest2268672-21wc08:40:281
225237999472,11cyclictest2268672-21wc08:40:281
2252379994635,6cyclictest0-21swapper/109:15:001
2252376994638,4cyclictest20650irq/252-8000000.ethernet07:25:240
2252376994638,4cyclictest167350irq/118-8000000.ethernet-tx008:35:210
2252376994636,8cyclictest2269477-21ptp4l08:45:260
2252376994634,6cyclictest2253112-21grep07:10:280
2252376994629,14cyclictest167350irq/118-8000000.ethernet-tx010:10:200
2252380994536,6cyclictest0-21swapper/207:20:002
2252380994532,10cyclictest311ktimers/210:20:162
2252380994530,9cyclictest2276403-21grep09:25:292
2252380994530,9cyclictest2276403-21grep09:25:282
2252380994528,11cyclictest0-21swapper/207:45:302
2252380994510,10cyclictest311ktimers/210:05:292
2252376994540,3cyclictest15-21rcuc/008:00:010
2252376994535,4cyclictest20650irq/252-8000000.ethernet11:15:290
225237999444,5cyclictest2298634-21grep11:35:301
225237999444,5cyclictest2298634-21grep11:35:291
2252376994437,5cyclictest0-21swapper/008:45:010
2252376994437,5cyclictest0-21swapper/008:45:010
2252376994437,4cyclictest167350irq/118-8000000.ethernet-tx011:35:220
2252376994437,4cyclictest167350irq/118-8000000.ethernet-tx011:35:220
2252376994424,17cyclictest0-21swapper/012:10:010
2252376994424,17cyclictest0-21swapper/012:10:010
225237699441,38cyclictest0-21swapper/010:55:010
2252380994333,5cyclictest0-21swapper/208:05:302
2252380994333,5cyclictest0-21swapper/208:05:302
2252380994332,6cyclictest0-21swapper/211:50:272
2252380994332,6cyclictest0-21swapper/211:50:272
2252380994331,7cyclictest0-21swapper/211:55:282
2252380994329,10cyclictest0-21swapper/212:30:272
2252379994316,5cyclictest2266520-21/usr/sbin/munin08:30:221
2252376994326,15cyclictest0-21swapper/011:00:230
2252376994326,15cyclictest0-21swapper/010:40:010
2252376994319,20cyclictest0-21swapper/010:45:010
2252380994235,4cyclictest311ktimers/208:45:282
2252379994214,5cyclictest231ktimers/111:45:011
225237699423,37cyclictest0-21swapper/011:25:320
225237699422,5cyclictest2306419-21unixbench_singl12:20:310
2252376994223,12cyclictest0-21swapper/008:10:010
2252376994223,12cyclictest0-21swapper/008:10:010
225237699421,4cyclictest0-21swapper/012:25:170
225237699421,39cyclictest0-21swapper/011:30:160
2252380994134,5cyclictest311ktimers/207:20:132
2252380994134,5cyclictest311ktimers/207:20:132
2252380994132,6cyclictest2288373-21grep10:35:292
2252380994132,5cyclictest0-21swapper/211:05:272
2252380994128,9cyclictest311ktimers/210:50:112
2252380994125,12cyclictest0-21swapper/211:15:282
225237999413,7cyclictest2270469-21head08:50:281
2252379994113,7cyclictest231ktimers/109:20:141
2252376994132,5cyclictest20850irq/208-8000000.ethernet07:40:260
225237699412,4cyclictest2255315-21sed07:25:010
225237699412,4cyclictest2255315-21sed07:25:010
2252376994115,4cyclictest2257677-21kworker/u8:3-events_freezable_power_07:45:230
225237699411,35cyclictest2272192-21grep09:00:290
225237699411,34cyclictest0-21swapper/012:10:040
225237699411,34cyclictest0-21swapper/012:10:040
225238099406,19cyclictest30-21rcuc/211:25:022
2252380994029,6cyclictest2296923-21grep11:25:322
2252380994025,6cyclictest0-21swapper/208:30:312
2252380994023,9cyclictest0-21swapper/212:10:292
2252380994023,9cyclictest0-21swapper/212:10:292
2252380994022,12cyclictest0-21swapper/210:15:262
2252380994022,10cyclictest0-21swapper/209:55:202
2252380994019,19cyclictest30-21rcuc/212:40:002
225238099401,2cyclictest0-21swapper/208:25:012
2252376994034,4cyclictest167350irq/118-8000000.ethernet-tx011:05:130
2252376994032,5cyclictest20650irq/252-8000000.ethernet07:35:270
2252376994032,5cyclictest20650irq/252-8000000.ethernet07:35:270
2252376994031,6cyclictest20850irq/208-8000000.ethernet08:30:200
2252376994030,7cyclictest2286730-21grep10:25:280
2252376994030,7cyclictest2270467-21grep08:50:280
225237699401,7cyclictest0-21swapper/011:45:000
2252380993926,9cyclictest2292598-21grep11:00:292
2252376993932,4cyclictest0-21swapper/011:20:160
225237699392,7cyclictest0-21swapper/009:05:190
225237699391,4cyclictest0-21swapper/010:10:020
225237699391,3cyclictest2300148-21ps11:45:300
225237699391,36cyclictest0-21swapper/010:30:150
225237699391,36cyclictest0-21swapper/010:20:300
225237699391,36cyclictest0-21swapper/009:50:240
225237699391,35cyclictest0-21swapper/011:55:170
225238099381,29cyclictest2282638-21latency_hist10:05:012
2252376993832,4cyclictest0-21swapper/008:10:240
2252376993828,5cyclictest0-21swapper/012:30:270
2252380993731,3cyclictest14-21rcu_preempt08:25:192
2252380993729,4cyclictest14-21rcu_preempt09:05:272
2252380993727,5cyclictest0-21swapper/207:40:282
2252380993723,8cyclictest2278031-21grep09:35:282
2252380993722,11cyclictest311ktimers/208:00:152
2252380993722,11cyclictest0-21swapper/211:40:022
2252380993722,11cyclictest0-21swapper/211:40:012
2252380993720,4cyclictest2238384-21kworker/u8:1-ext4-rsv-conversion07:10:012
2252376993732,3cyclictest0-21swapper/012:00:190
2252376993731,3cyclictest20650irq/252-8000000.ethernet08:00:220
225237699372,33cyclictest0-21swapper/010:45:220
2252376993721,14cyclictest0-21swapper/009:20:120
225237699371,7cyclictest2305625-21cron12:19:590
225237699371,34cyclictest0-21swapper/010:15:140
225237699371,2cyclictest0-21swapper/009:35:000
2252380993628,5cyclictest0-21swapper/211:45:322
2252380993626,6cyclictest0-21swapper/211:30:282
2252380993625,7cyclictest0-21swapper/207:30:292
2252380993625,6cyclictest0-21swapper/210:40:202
2252380993622,8cyclictest30-21rcuc/209:45:122
2252380993620,9cyclictest2291730-21grep10:55:292
2252380993615,16cyclictest311ktimers/211:15:012
2252380993614,14cyclictest2257046-21/usr/sbin/munin07:35:182
2252380993614,14cyclictest2257046-21/usr/sbin/munin07:35:182
225237699365,4cyclictest0-21swapper/009:40:000
2252376993632,2cyclictest0-21swapper/009:00:020
2252376993632,2cyclictest0-21swapper/009:00:020
2252376993629,4cyclictest20650irq/252-8000000.ethernet09:40:200
225237699361,33cyclictest0-21swapper/011:50:130
225237699361,33cyclictest0-21swapper/011:50:130
225237699361,33cyclictest0-21swapper/008:29:510
225238099356,15cyclictest0-21swapper/212:25:172
225238099354,26cyclictest32-21ksoftirqd/209:00:012
225238099354,26cyclictest32-21ksoftirqd/209:00:012
2252380993521,8cyclictest30-21rcuc/209:40:312
2252380993520,8cyclictest30-21rcuc/210:25:202
2252376993529,4cyclictest20850irq/208-8000000.ethernet08:20:180
2252376993528,4cyclictest20650irq/252-8000000.ethernet09:45:290
2252380993423,6cyclictest30-21rcuc/211:40:252
2252380993423,6cyclictest0-21swapper/209:30:292
2252380993418,4cyclictest2274736-21kworker/u8:2+events_power_efficient09:20:002
2252380993418,11cyclictest2273866-21grep09:10:282
2252380993416,14cyclictest311ktimers/208:50:122
2252380993325,5cyclictest0-21swapper/212:00:282
2252380993324,5cyclictest0-21swapper/207:55:192
225238099332,15cyclictest32-21ksoftirqd/210:50:012
2252380993320,7cyclictest30-21rcuc/209:50:132
2252380993317,9cyclictest30-21rcuc/212:10:012
2252380993317,9cyclictest30-21rcuc/212:10:012
2252380993226,4cyclictest14-21rcu_preempt09:25:002
2252380993224,5cyclictest2286976-21/usr/sbin/munin10:30:172
2252380993221,7cyclictest2272180-21grep09:00:282
2252380993221,6cyclictest0-21swapper/210:10:262
2252380993218,9cyclictest30-21rcuc/207:15:012
2252380993218,5cyclictest2263139-21/usr/sbin/munin08:10:202
2252380993124,4cyclictest14-21rcu_preempt07:25:242
225237699311,25cyclictest0-21swapper/007:10:020
2252380993020,7cyclictest30-21rcuc/212:20:302
2252380992923,4cyclictest14-21rcu_preempt07:50:202
2252380992921,6cyclictest30-21rcuc/208:35:202
2252379992815,8cyclictest0-21swapper/107:10:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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