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2025-12-12 - 05:06

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 Fri Dec 12, 2025 00:44:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
282269799781,47cyclictest391ktimers/319:15:013
2822691997430,38cyclictest0-21swapper/122:15:011
2822688996753,6cyclictest0-21swapper/000:15:180
2822688996753,6cyclictest0-21swapper/000:15:180
282268899673,45cyclictest15-21rcuc/019:15:020
282268899673,45cyclictest15-21rcuc/019:15:010
2822691996631,28cyclictest0-21swapper/119:20:191
2822691996422,32cyclictest0-21swapper/121:40:231
2822691996422,32cyclictest0-21swapper/121:40:221
2822691996410,44cyclictest0-21swapper/122:35:271
2822691996321,33cyclictest0-21swapper/100:20:291
2822691996229,30cyclictest2839079-21munin-plugin-st20:45:011
2822691996219,34cyclictest0-21swapper/123:20:001
282268899622,37cyclictest2833910-21apt-get20:15:020
2822691996127,28cyclictest2866933-21grep23:25:301
2822691996023,30cyclictest0-21swapper/123:45:191
2822691996019,32cyclictest0-21swapper/121:50:311
2822691995919,31cyclictest0-21swapper/123:35:291
2822691995814,34cyclictest0-21swapper/123:55:311
2822691995719,28cyclictest0-21swapper/100:05:291
2822691995719,28cyclictest0-21swapper/100:05:291
2822691995717,31cyclictest0-21swapper/100:25:301
2822693995611,7cyclictest2854270-21apt-get22:15:022
2822691995618,28cyclictest2860209-21grep22:45:271
2822691995613,32cyclictest0-21swapper/100:15:231
2822691995613,32cyclictest0-21swapper/100:15:231
2822691995612,36cyclictest0-21swapper/123:05:001
2822691995610,36cyclictest0-21swapper/119:10:201
2822691995610,36cyclictest0-21swapper/119:10:201
2822691995522,26cyclictest0-21swapper/100:00:241
2822691995520,27cyclictest2844333-21/usr/sbin/munin21:15:261
2822691995516,30cyclictest0-21swapper/121:30:011
2822691995516,30cyclictest0-21swapper/121:30:011
2822693995411,21cyclictest2870610-21/usr/sbin/munin23:50:202
2822693995411,21cyclictest2870610-21/usr/sbin/munin23:50:202
282269199548,8cyclictest0-21swapper/100:35:321
282269199548,8cyclictest0-21swapper/100:35:321
2822691995429,20cyclictest0-21swapper/121:20:241
2822691995417,29cyclictest0-21swapper/122:55:311
2822691995417,28cyclictest0-21swapper/119:40:221
2822691995413,32cyclictest0-21swapper/122:20:211
2822691995316,29cyclictest0-21swapper/123:30:291
2822691995312,30cyclictest0-21swapper/120:55:261
2822691995310,6cyclictest0-21swapper/119:45:291
2822688995343,6cyclictest2846672-21munin-run21:30:000
2822688995343,6cyclictest2846672-21munin-run21:30:000
282269199528,8cyclictest0-21swapper/122:30:231
282269199528,6cyclictest0-21swapper/121:30:211
282269199524,12cyclictest0-21swapper/123:25:011
2822691995219,25cyclictest0-21swapper/121:00:281
2822691995218,27cyclictest168350irq/126-8000000.ethernet-tx119:25:201
2822691995217,28cyclictest0-21swapper/120:50:021
2822691995216,30cyclictest168350irq/126-8000000.ethernet-tx100:30:211
2822691995213,5cyclictest0-21swapper/122:15:251
2822691995211,4cyclictest0-21swapper/120:30:231
282269199519,6cyclictest0-21swapper/123:05:301
2822691995122,23cyclictest0-21swapper/121:40:011
282269199512,10cyclictest2824724-21cat19:20:001
2822691995118,28cyclictest0-21swapper/121:05:221
2822691995117,24cyclictest0-21swapper/119:35:261
2822691995111,7cyclictest0-21swapper/120:20:231
282269199511,13cyclictest2856820-21grep22:25:311
282269199511,13cyclictest2856820-21grep22:25:311
2822691995111,32cyclictest0-21swapper/120:10:201
2822693995030,12cyclictest0-21swapper/222:15:322
282269199509,7cyclictest0-21swapper/122:40:221
2822691995023,21cyclictest0-21swapper/120:25:301
2822691995013,6cyclictest1668-21snmpd22:06:371
282268899505,24cyclictest12-21ksoftirqd/000:35:000
282268899505,16cyclictest12-21ksoftirqd/022:10:010
2822688995024,14cyclictest131ktimers/023:05:160
282269199494,12cyclictest0-21swapper/123:10:321
2822691994812,4cyclictest0-21swapper/121:10:281
2822691994811,5cyclictest0-21swapper/120:00:201
2822691994810,7cyclictest0-21swapper/122:50:311
2822688994837,8cyclictest2868660-21grep23:35:300
2822688994828,15cyclictest131ktimers/022:10:120
282269199475,11cyclictest0-21swapper/119:50:291
282269199472,12cyclictest2834632-21cut20:15:271
282269199471,2cyclictest0-21swapper/119:30:261
2822691994712,5cyclictest0-21swapper/120:35:331
2822693994635,7cyclictest2850895-21munin-run21:55:002
282269199468,6cyclictest0-21swapper/120:05:201
282269199465,12cyclictest0-21swapper/123:40:251
282269199464,9cyclictest0-21swapper/123:50:221
282269199464,9cyclictest0-21swapper/123:50:211
282269199463,7cyclictest2840723-21sed20:50:321
282269199461,38cyclictest0-21swapper/121:55:331
2822688994637,4cyclictest21250irq/208-8000000.ethernet23:15:290
2822688994632,9cyclictest0-21swapper/022:55:300
2822693994534,8cyclictest0-21swapper/223:25:002
282269199451,14cyclictest2849512-21cut21:45:201
2822688994536,6cyclictest2832965-21grep20:05:300
2822688994531,9cyclictest12-21ksoftirqd/019:35:110
2822688994530,10cyclictest131ktimers/023:55:140
282269199442,6cyclictest2831367-21cron20:00:011
282269199442,11cyclictest2874331-21grep00:10:291
282269199441,37cyclictest0-21swapper/122:00:231
2822688994426,7cyclictest2829586-21unixbench_multi19:45:280
2822693994331,8cyclictest0-21swapper/221:25:012
2822693994319,15cyclictest2827355-21/usr/sbin/munin19:35:202
2822688994330,9cyclictest0-21swapper/021:50:330
2822688994321,17cyclictest131ktimers/022:15:180
282268899424,30cyclictest12-21ksoftirqd/020:55:010
282268899423,11cyclictest2833910-21apt-get20:15:020
282268899421,36cyclictest0-21swapper/019:25:170
2822693994135,3cyclictest2831372-21cron20:00:002
2822693994133,5cyclictest2870413-21munin-plugin-st23:50:002
282269399411,33cyclictest0-21swapper/221:05:342
282269399411,33cyclictest0-21swapper/220:05:292
2822688994125,11cyclictest0-21swapper/022:50:320
2822688994122,14cyclictest131ktimers/019:30:120
2822688994122,13cyclictest131ktimers/021:30:130
2822688994032,5cyclictest0-21swapper/023:25:310
2822688994032,4cyclictest2848370-21sendmail21:40:000
2822688994030,7cyclictest2856064-21munin-plugin-st22:25:000
2822688994030,6cyclictest2856857-21grep22:25:310
2822688994030,6cyclictest2856857-21grep22:25:300
282268899401,33cyclictest0-21swapper/021:00:150
2822693993933,4cyclictest2872901-21unixbench_singl00:00:312
2822693993932,4cyclictest168450irq/134-8000000.ethernet-tx220:00:292
2822693993930,6cyclictest2873685-21unixbench_multi00:05:302
2822693993930,6cyclictest2873685-21unixbench_multi00:05:302
2822693993924,7cyclictest0-21swapper/200:10:322
2822688993931,3cyclictest0-21swapper/019:15:170
2822688993925,9cyclictest0-21swapper/020:00:010
282269399384,4cyclictest2876317-21unixbench_multi00:20:302
2822693993827,6cyclictest0-21swapper/223:30:292
2822693993827,6cyclictest0-21swapper/220:15:272
2822693993825,9cyclictest0-21swapper/221:10:302
2822693993822,11cyclictest0-21swapper/219:15:042
2822688993832,4cyclictest21250irq/208-8000000.ethernet19:20:180
2822688993829,5cyclictest0-21swapper/021:10:300
2822688993828,4cyclictest0-21swapper/023:20:330
2822688993820,12cyclictest131ktimers/021:20:180
282268899381,2cyclictest0-21swapper/023:50:000
282268899381,2cyclictest0-21swapper/000:25:020
2822693993727,6cyclictest2858524-21grep22:35:282
2822693993727,6cyclictest2835619-21grep20:20:312
2822693993724,9cyclictest0-21swapper/219:20:262
2822693993724,7cyclictest0-21swapper/222:45:212
282269399371,29cyclictest2862706-21unixbench_multi23:00:332
2822688993732,2cyclictest0-21swapper/020:35:320
2822688993729,5cyclictest2857629-21sed22:30:330
2822688993727,7cyclictest2849102-21unixbench_multi21:40:320
2822688993727,7cyclictest2849102-21unixbench_multi21:40:310
2822688993726,4cyclictest21250irq/208-8000000.ethernet23:30:180
2822688993716,16cyclictest131ktimers/023:10:140
2822693993626,6cyclictest0-21swapper/223:55:322
2822693993625,6cyclictest0-21swapper/221:30:322
2822693993623,9cyclictest0-21swapper/220:40:282
2822693993622,9cyclictest0-21swapper/223:10:242
2822688993629,4cyclictest21250irq/208-8000000.ethernet19:40:170
2822688993628,4cyclictest0-21swapper/021:20:000
2822688993627,5cyclictest0-21swapper/022:00:290
282268899361,2cyclictest0-21swapper/020:45:010
282268899361,2cyclictest0-21swapper/019:55:010
282268899361,12cyclictest0-21swapper/000:40:010
282268899361,12cyclictest0-21swapper/000:40:010
2822693993528,4cyclictest2837381-21munin-plugin-st20:35:012
2822693993521,9cyclictest0-21swapper/220:35:272
2822693993519,11cyclictest0-21swapper/222:20:262
282268899354,28cyclictest14-21rcu_preempt20:50:010
2822688993529,4cyclictest21250irq/208-8000000.ethernet23:40:140
2822688993529,4cyclictest21250irq/208-8000000.ethernet22:35:180
2822688993529,4cyclictest21250irq/208-8000000.ethernet20:30:210
2822688993523,8cyclictest0-21swapper/020:20:290
282268899351,30cyclictest0-21swapper/020:25:020
282269399349,11cyclictest2875474-21apt-get00:20:012
282269399349,11cyclictest2875474-21apt-get00:20:012
2822693993428,3cyclictest2865224-21unixbench_multi23:15:282
2822693993426,5cyclictest168450irq/134-8000000.ethernet-tx221:45:302
2822693993424,6cyclictest0-21swapper/223:35:292
2822693993423,7cyclictest0-21swapper/222:30:322
2822693993410,17cyclictest2825679-21/usr/sbin/munin19:25:192
2822688993428,4cyclictest2871255-21munin-plugin-st23:55:000
2822688993428,4cyclictest2871255-21munin-plugin-st23:55:000
2822688993425,5cyclictest0-21swapper/021:05:330
2822688993424,6cyclictest0-21swapper/023:05:000
2822688993423,7cyclictest0-21swapper/000:25:310
2822688993422,8cyclictest0-21swapper/020:55:300
2822693993327,4cyclictest2849215-21munin-plugin-st21:45:002
2822693993327,4cyclictest2849215-21munin-plugin-st21:45:002
2822693993326,4cyclictest168450irq/134-8000000.ethernet-tx222:25:142
2822693993326,4cyclictest168450irq/134-8000000.ethernet-tx222:25:142
2822693993324,5cyclictest0-21swapper/222:50:252
282269399331,2cyclictest0-21swapper/200:30:022
2822688993328,3cyclictest21250irq/208-8000000.ethernet22:45:180
2822688993327,4cyclictest21250irq/208-8000000.ethernet20:00:130
2822688993326,4cyclictest20050irq/27-20000000.i2c21:45:200
282268899331,29cyclictest2851399-21memory21:55:300
2822693993223,5cyclictest0-21swapper/221:55:332
2822693993223,5cyclictest0-21swapper/219:45:282
2822693993223,5cyclictest0-21swapper/219:10:292
2822693993223,5cyclictest0-21swapper/219:10:292
2822693993222,5cyclictest0-21swapper/223:40:282
2822693993222,5cyclictest0-21swapper/223:25:202
2822693993217,9cyclictest311ktimers/221:25:262
2822693993217,9cyclictest311ktimers/221:25:262
2822688993227,3cyclictest21250irq/208-8000000.ethernet00:00:140
2822693993126,3cyclictest0-21swapper/220:55:292
2822693993125,3cyclictest168450irq/134-8000000.ethernet-tx219:30:132
2822693993123,4cyclictest0-21swapper/222:55:292
2822693993123,4cyclictest0-21swapper/221:00:312
2822693993122,5cyclictest0-21swapper/220:45:282
2822693993117,9cyclictest0-21swapper/222:05:002
2822693993022,4cyclictest0-21swapper/220:25:302
2822688993023,4cyclictest0-21swapper/022:40:170
2822688993022,5cyclictest2874155-21sh00:10:250
282268899301,26cyclictest15-21rcuc/000:05:180
282268899301,26cyclictest15-21rcuc/000:05:180
2822693992922,4cyclictest0-21swapper/220:50:312
2822693992920,4cyclictest0-21swapper/220:10:282
2822693992919,5cyclictest0-21swapper/219:40:282
2822693992918,8cyclictest0-21swapper/221:15:222
2822693992822,4cyclictest30-21rcuc/222:45:012
2822693992818,7cyclictest2848245-21grep21:35:272
282269399281,25cyclictest0-21swapper/222:06:112
2822691992821,4cyclictest168350irq/126-8000000.ethernet-tx119:10:021
282268899281,3cyclictest2822732-21latency_hist19:10:000
2822693992619,5cyclictest168450irq/134-8000000.ethernet-tx200:33:202
2822693992613,9cyclictest2863650-21apt23:10:012
282269399251,2cyclictest0-21swapper/200:35:202
282269399251,2cyclictest0-21swapper/200:35:202
2822693992315,6cyclictest311ktimers/219:50:152
2822693992015,3cyclictest2822650-21latency_hist19:10:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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