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2026-04-07 - 06:07

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 Tue Apr 07, 2026 00:44:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
319943999894,53cyclictest3241489-21cmp23:15:012
319943999779,61cyclictest3224259-21apt-get21:35:012
319943999709,56cyclictest3203065-21apt-get19:30:012
3199439996321,34cyclictest0-21swapper/220:25:012
319943999617,50cyclictest0-21swapper/222:05:012
319943999616,42cyclictest3244236-21/usr/sbin/munin23:30:192
3199439996019,32cyclictest0-21swapper/220:55:192
3199439996013,40cyclictest1660-21snmpd00:21:342
3199436996049,9cyclictest15-21rcuc/000:05:140
3199439995918,32cyclictest0-21swapper/221:20:212
319943999591,51cyclictest3236470-21apt-get22:45:152
3199439995816,36cyclictest1660-21snmpd20:48:172
319943999581,49cyclictest3248455-21apt-get23:55:162
319943999581,49cyclictest3248455-21apt-get23:55:162
319943999572,19cyclictest0-21swapper/223:50:022
319943999571,49cyclictest3240545-21/usr/sbin/munin23:05:302
319943999563,44cyclictest3241854-21ssh23:15:212
319943999563,44cyclictest3241854-21ssh23:15:212
3199439995620,27cyclictest0-21swapper/221:15:222
3199439995616,34cyclictest3215756-21grep20:40:272
319943999548,38cyclictest0-21swapper/223:00:172
3199439995442,8cyclictest0-21swapper/222:40:002
319943999542,45cyclictest3254877-21/usr/sbin/munin00:30:252
319943999542,42cyclictest3227229-21cut21:50:202
3199439995418,28cyclictest0-21swapper/221:40:262
3199439995417,28cyclictest0-21swapper/219:50:272
319943999541,44cyclictest3249313-21apt-get00:00:162
3199436995445,5cyclictest20850irq/208-8000000.ethernet19:40:180
3199439995331,17cyclictest274-21systemd-journal22:30:012
319943999532,44cyclictest3250154-21apt-get00:05:152
3199437995337,10cyclictest3254338-21cat00:30:001
3199436995346,5cyclictest3255958-21munin-plugin-st00:39:590
319943999526,39cyclictest0-21swapper/221:45:272
319943999524,41cyclictest3232853-21unixbench_singl22:20:302
319943999522,43cyclictest3210410-21meminfo20:10:242
319943999522,42cyclictest3207712-21ssh19:55:192
319943999522,41cyclictest3200203-21grep19:10:282
319943999522,39cyclictest3211500-21grep20:15:272
3199439995217,31cyclictest0-21swapper/223:20:162
319943999521,42cyclictest3202570-21ssh19:25:192
319943999521,42cyclictest3202570-21ssh19:25:192
3199436995245,4cyclictest3245721-21munin-plugin-st23:40:000
319943699523,15cyclictest15-21rcuc/021:05:000
319943999513,42cyclictest3206348-21wc19:45:272
319943999513,42cyclictest3206348-21wc19:45:272
319943999513,40cyclictest3235629-21/usr/sbin/munin22:40:102
3199439995126,19cyclictest3209865-21grep20:05:292
319943999512,43cyclictest0-21swapper/221:05:212
319943999512,43cyclictest0-21swapper/221:05:212
319943999512,41cyclictest3237377-21/usr/sbin/munin22:50:182
319943999511,44cyclictest3223413-21sshd21:29:162
319943999511,42cyclictest3246029-21fschecks_count23:40:182
3199437995142,5cyclictest3232896-21munin-plugin-st22:24:591
3199436995143,4cyclictest3225203-21sendmail21:40:010
3199436995142,4cyclictest167350irq/118-8000000.ethernet-tx022:30:190
3199439995028,19cyclictest1660-21snmpd21:35:172
319943999502,42cyclictest3204197-21apt-get19:35:112
319943999502,41cyclictest3233931-21/usr/sbin/munin22:30:312
319943999502,39cyclictest3255431-21cut00:35:192
319943999501,42cyclictest3243930-21grep23:25:282
319943999501,41cyclictest3200923-21cut19:15:202
319943999501,41cyclictest3200923-21cut19:15:202
3199437995039,8cyclictest3245726-21sendmail23:39:591
319943999498,36cyclictest3217345-21/usr/sbin/munin20:50:262
319943999492,40cyclictest3228230-21/usr/sbin/munin21:55:252
319943999492,39cyclictest3214030-21grep20:30:272
319943999492,39cyclictest3205051-21/usr/sbin/munin19:40:292
3199439994922,21cyclictest0-21swapper/222:55:192
319943999491,40cyclictest3220242-21apt-get21:10:112
319943999491,40cyclictest3214329-21apt-get20:35:142
319943999491,40cyclictest3201891-21/usr/sbin/munin19:20:242
319943699493,4cyclictest3200841-21fschecks_count19:15:180
319943699493,4cyclictest3200841-21fschecks_count19:15:180
319943999482,39cyclictest3253534-21apt-get00:25:112
319943999482,39cyclictest3208428-21/usr/sbin/munin20:00:112
319943999482,39cyclictest1660-21snmpd20:25:052
319943999482,39cyclictest1660-21snmpd20:25:052
319943999482,38cyclictest3219165-21grep21:00:292
319943999482,36cyclictest3231392-21apt-get22:15:042
319943999482,36cyclictest3231392-21apt-get22:15:042
319943999481,37cyclictest3230518-21df22:10:172
319943999481,11cyclictest3251834-21apt-get00:15:102
3199436994841,5cyclictest0-21swapper/021:20:130
319943999472,38cyclictest3247838-21/usr/sbin/munin23:50:222
319943999472,38cyclictest3245278-21/usr/sbin/munin23:35:212
3199436994735,7cyclictest3233681-21grep22:25:280
3199436994730,15cyclictest0-21swapper/023:30:270
319943999469,31cyclictest0-21swapper/200:10:222
3199437994625,8cyclictest0-21swapper/120:20:291
319943699466,10cyclictest0-21swapper/023:50:190
3199436994639,4cyclictest20650irq/252-8000000.ethernet21:30:230
3199436994635,7cyclictest0-21swapper/021:55:130
3199436994632,8cyclictest0-21swapper/000:25:290
319943999452,39cyclictest3230053-21grep22:05:282
319943999452,39cyclictest3230053-21grep22:05:282
3199437994535,6cyclictest0-21swapper/100:05:171
3199437994531,9cyclictest0-21swapper/100:40:001
3199437994527,11cyclictest0-21swapper/122:50:281
319943699458,32cyclictest3206431-21grep19:45:270
319943699458,32cyclictest3206431-21grep19:45:270
3199436994538,4cyclictest167350irq/118-8000000.ethernet-tx022:15:230
3199436994538,4cyclictest167350irq/118-8000000.ethernet-tx022:15:230
319943699452,4cyclictest3208502-21diskstats20:00:190
319943699452,41cyclictest0-21swapper/000:20:220
319943699452,40cyclictest0-21swapper/020:15:260
319943999442,35cyclictest3199563-21latency_hist19:10:022
3199437994431,9cyclictest0-21swapper/119:30:281
3199437994429,11cyclictest0-21swapper/123:10:001
3199436994437,4cyclictest167350irq/118-8000000.ethernet-tx023:00:040
3199436994436,5cyclictest0-21swapper/021:05:230
3199436994436,5cyclictest0-21swapper/021:05:230
3199436994436,4cyclictest167350irq/118-8000000.ethernet-tx023:00:020
319943699441,38cyclictest0-21swapper/022:40:000
3199437994325,10cyclictest0-21swapper/122:25:281
319943799432,31cyclictest3243977-21unixbench_singl23:25:291
319943699434,6cyclictest3225547-21tune2fs21:40:200
3199436994336,4cyclictest167350irq/118-8000000.ethernet-tx000:10:170
3199436994335,4cyclictest3223423-21munin-plugin-st21:30:000
3199436994328,13cyclictest167350irq/118-8000000.ethernet-tx020:40:110
319943699432,38cyclictest3203641-21kernelversion19:30:230
319943699431,40cyclictest0-21swapper/020:35:000
319943699431,36cyclictest0-21swapper/023:25:000
3199437994235,4cyclictest3227731-21munin-plugin-st21:55:001
3199437994235,4cyclictest167450irq/126-8000000.ethernet-tx119:40:271
319943699424,30cyclictest3246534-21sed23:40:280
3199436994233,6cyclictest3248996-21grep23:55:270
3199436994233,6cyclictest3248996-21grep23:55:270
3199436994231,5cyclictest167350irq/118-8000000.ethernet-tx019:35:260
319943699422,32cyclictest3237231-21latency_hist22:50:000
3199436994223,16cyclictest0-21swapper/022:00:130
319943699421,39cyclictest0-21swapper/023:15:190
319943699421,39cyclictest0-21swapper/023:15:190
319943699421,38cyclictest3215004-21latency_hist20:40:000
3199437994132,5cyclictest0-21swapper/120:00:281
3199437994126,11cyclictest231ktimers/122:30:121
319943799412,5cyclictest3219934-21grep21:05:291
319943799412,5cyclictest3219934-21grep21:05:291
319943799411,4cyclictest3226827-21grep21:45:261
3199436994137,2cyclictest0-21swapper/023:10:010
3199436994135,3cyclictest167350irq/118-8000000.ethernet-tx019:10:110
319943699413,4cyclictest3212457-21latency_hist20:25:000
3199436994132,5cyclictest0-21swapper/021:10:280
319943699412,37cyclictest0-21swapper/022:24:590
319943699404,28cyclictest3202391-21cat19:25:010
3199436994033,4cyclictest0-21swapper/000:00:250
3199436994031,5cyclictest3241531-21apt-key23:15:000
3199436994024,12cyclictest0-21swapper/019:25:200
3199436994024,12cyclictest0-21swapper/019:25:200
319943699401,37cyclictest0-21swapper/021:50:370
319943699401,2cyclictest0-21swapper/022:55:010
3199437993929,5cyclictest0-21swapper/123:45:241
3199437993928,5cyclictest0-21swapper/121:35:011
3199436993929,6cyclictest0-21swapper/022:05:290
3199436993929,6cyclictest0-21swapper/022:05:290
319943699391,36cyclictest0-21swapper/000:30:180
3199437993830,4cyclictest0-21swapper/119:20:221
3199437993828,5cyclictest0-21swapper/120:40:281
3199437993826,7cyclictest3235333-21unixbench_multi22:35:291
3199437993823,9cyclictest0-21swapper/122:40:201
319943799382,27cyclictest0-21swapper/122:05:251
319943799382,27cyclictest0-21swapper/122:05:251
3199437993822,11cyclictest231ktimers/100:15:141
3199436993833,3cyclictest0-21swapper/019:55:160
3199436993833,2cyclictest0-21swapper/023:25:170
3199436993827,5cyclictest0-21swapper/020:50:280
319943699381,35cyclictest0-21swapper/023:45:130
319943699381,35cyclictest0-21swapper/020:10:130
319943699381,35cyclictest0-21swapper/019:50:190
3199437993729,4cyclictest3242970-21ptp4l23:20:251
3199437993726,6cyclictest3231237-21latency_hist22:15:011
3199437993726,6cyclictest0-21swapper/120:45:291
3199437993725,8cyclictest0-21swapper/120:15:271
319943699371,34cyclictest0-21swapper/020:55:290
319943699371,34cyclictest0-21swapper/020:26:070
319943699371,34cyclictest0-21swapper/020:26:070
3199437993628,4cyclictest167450irq/126-8000000.ethernet-tx123:00:231
3199437993625,5cyclictest0-21swapper/122:55:261
3199437993622,7cyclictest0-21swapper/121:15:301
3199437993621,9cyclictest0-21swapper/121:05:001
3199437993621,7cyclictest0-21swapper/119:35:281
3199437993616,7cyclictest0-21swapper/120:25:161
3199437993616,7cyclictest0-21swapper/120:25:161
3199436993629,4cyclictest167350irq/118-8000000.ethernet-tx022:40:230
3199436993624,8cyclictest0-21swapper/021:20:000
3199436993617,17cyclictest0-21swapper/000:15:450
319943699361,4cyclictest0-21swapper/021:45:340
3199437993527,4cyclictest0-21swapper/120:05:281
3199437993525,5cyclictest0-21swapper/119:55:261
3199437993525,5cyclictest0-21swapper/100:10:281
3199437993520,7cyclictest0-21swapper/122:15:271
3199437993520,7cyclictest0-21swapper/122:15:271
3199437993519,12cyclictest3199431-21cyclictest21:35:111
319943799351,28cyclictest0-21swapper/121:25:191
3199436993530,3cyclictest0-21swapper/020:05:030
3199436993528,4cyclictest20850irq/208-8000000.ethernet22:15:010
3199436993527,3cyclictest3199525-21latency_hist19:10:010
3199437993426,4cyclictest167450irq/126-8000000.ethernet-tx123:10:211
3199437993426,4cyclictest0-21swapper/100:20:201
3199437993425,4cyclictest167450irq/126-8000000.ethernet-tx120:10:251
3199437993424,3cyclictest0-21swapper/123:15:251
3199437993424,3cyclictest0-21swapper/123:15:241
3199437993422,8cyclictest0-21swapper/119:45:251
3199437993422,8cyclictest0-21swapper/119:45:251
3199437993422,8cyclictest0-21swapper/100:00:291
3199437993420,8cyclictest0-21swapper/123:30:291
3199437993416,10cyclictest0-21swapper/122:00:181
3199437993414,14cyclictest167450irq/126-8000000.ethernet-tx121:41:181
3199436993429,3cyclictest0-21swapper/020:49:170
3199437993325,5cyclictest0-21swapper/100:30:141
319943799331,26cyclictest0-21swapper/123:40:201
3199437993223,4cyclictest0-21swapper/120:30:191
3199437993221,6cyclictest0-21swapper/119:30:011
3199437993221,6cyclictest0-21swapper/119:30:011
3199437993220,8cyclictest0-21swapper/123:50:231
319943799321,7cyclictest0-21swapper/122:50:011
3199437993123,5cyclictest3200223-21dropbear19:12:181
3199437993123,4cyclictest3200519-21munin-node19:15:041
3199437993123,4cyclictest3200519-21munin-node19:15:031
3199437993023,4cyclictest3222466-21unixbench_multi21:20:311
3199437993018,9cyclictest1660-21snmpd21:10:131
3199437992918,7cyclictest0-21swapper/119:50:271
3199437992918,5cyclictest0-21swapper/123:55:281
3199437992918,5cyclictest0-21swapper/123:55:281
3199437992914,10cyclictest0-21swapper/120:55:191
3199437992821,5cyclictest3214948-21sshd20:37:171
3199437992815,7cyclictest0-21swapper/121:55:281
3199437992619,5cyclictest0-21swapper/120:50:161
319943799194,9cyclictest0-21swapper/119:10:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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