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2026-05-13 - 17:26

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 May 13, 2026 12:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1903201999235,51cyclictest20650irq/252-8000000.ethernet08:25:010
1903201999235,51cyclictest20650irq/252-8000000.ethernet08:25:010
190320199903,11cyclictest1945001-21apt-get11:15:010
1903201998947,36cyclictest20650irq/252-8000000.ethernet08:20:000
1903201998925,53cyclictest1939084-21cron10:40:010
1903201998925,53cyclictest1939084-21cron10:40:000
1903201998120,51cyclictest1930916-21/usr/sbin/munin09:50:150
190320199811,2cyclictest0-21swapper/007:10:010
1903201997930,41cyclictest20650irq/252-8000000.ethernet11:50:000
1903201997930,41cyclictest20650irq/252-8000000.ethernet11:50:000
1903201997927,43cyclictest20650irq/252-8000000.ethernet11:30:180
1903201997724,46cyclictest1930659-21munin-plugin-st09:50:000
1903201997723,47cyclictest20650irq/252-8000000.ethernet09:20:240
1903201997523,46cyclictest20650irq/252-8000000.ethernet12:05:170
190320299741,25cyclictest0-21swapper/112:20:191
1903201997324,42cyclictest20650irq/252-8000000.ethernet09:40:160
1903201997310,24cyclictest0-21swapper/010:15:030
1903201997126,42cyclictest20650irq/252-8000000.ethernet12:25:200
1903201997125,42cyclictest20650irq/252-8000000.ethernet12:10:180
1903201997123,41cyclictest20650irq/252-8000000.ethernet10:00:300
1903201997027,38cyclictest0-21swapper/011:40:000
1903201997027,38cyclictest0-21swapper/011:40:000
1903201997026,40cyclictest1903888-21grep07:10:290
1903201997025,42cyclictest20650irq/252-8000000.ethernet07:35:010
1903201997025,42cyclictest20650irq/252-8000000.ethernet07:35:010
1903201997025,39cyclictest20650irq/252-8000000.ethernet11:05:000
1903201997024,40cyclictest20650irq/252-8000000.ethernet07:35:190
1903201997021,44cyclictest0-21swapper/008:50:010
1903201996925,41cyclictest20650irq/252-8000000.ethernet07:50:170
1903201996924,37cyclictest20650irq/252-8000000.ethernet10:05:150
1903201996922,45cyclictest0-21swapper/010:30:010
1903201996920,43cyclictest1939363-21df10:40:150
1903201996919,46cyclictest1919017-21df08:40:170
1903201996919,46cyclictest1919017-21df08:40:170
190320199681,2cyclictest0-21swapper/011:00:010
1903201996724,39cyclictest20650irq/252-8000000.ethernet10:30:150
1903201996643,20cyclictest20850irq/208-8000000.ethernet07:25:250
1903201996626,35cyclictest20650irq/252-8000000.ethernet10:10:170
1903201996626,35cyclictest20650irq/252-8000000.ethernet10:10:170
1903201996625,39cyclictest20650irq/252-8000000.ethernet09:15:180
1903201996625,38cyclictest20650irq/252-8000000.ethernet08:25:180
1903201996624,39cyclictest20650irq/252-8000000.ethernet11:15:180
1903201996618,44cyclictest0-21swapper/008:55:010
1903201996526,36cyclictest20650irq/252-8000000.ethernet08:10:190
1903201996526,36cyclictest20650irq/252-8000000.ethernet08:10:190
1903201996525,37cyclictest20650irq/252-8000000.ethernet09:05:150
1903201996523,36cyclictest20650irq/252-8000000.ethernet11:55:140
1903201996519,43cyclictest1913119-21ssh08:05:200
1903201996425,36cyclictest20650irq/252-8000000.ethernet09:55:180
1903201996424,38cyclictest0-21swapper/012:05:000
1903201996422,40cyclictest0-21swapper/011:55:010
190320599639,35cyclictest32-21ksoftirqd/208:40:012
1903201996326,33cyclictest20650irq/252-8000000.ethernet10:45:180
1903201996319,39cyclictest0-21swapper/012:35:210
1903201996319,38cyclictest0-21swapper/011:20:170
1903201996224,35cyclictest20650irq/252-8000000.ethernet10:50:190
1903201996224,35cyclictest20650irq/252-8000000.ethernet10:50:190
1903201996220,39cyclictest1918177-21/usr/sbin/munin08:35:170
1903201996219,40cyclictest0-21swapper/009:30:010
190320199613,53cyclictest1958558-21ptp4l12:30:250
1903201996126,31cyclictest20650irq/252-8000000.ethernet11:30:010
1903201996122,35cyclictest1928843-21grep09:35:290
1903201996122,35cyclictest1928843-21grep09:35:290
1903201996028,27cyclictest1911785-21tail07:55:280
1903201996025,32cyclictest20650irq/252-8000000.ethernet12:15:140
1903201996021,36cyclictest20650irq/252-8000000.ethernet12:24:430
1903201996019,38cyclictest1927552-21diskstats09:30:180
1903201996016,40cyclictest0-21swapper/009:05:010
1903201995923,33cyclictest20650irq/252-8000000.ethernet09:10:200
190320199591,9cyclictest1921665-21ssh08:55:200
1903201995821,9cyclictest1936501-21/usr/sbin/munin10:20:280
190320199571,20cyclictest1913566-21kworker/u8:2+ext4-rsv-conversion08:35:010
1903202995640,10cyclictest0-21swapper/109:00:001
1903201995625,28cyclictest20650irq/252-8000000.ethernet08:05:010
190320199554,10cyclictest1905873-21grep07:20:290
1903201995520,33cyclictest1943701-21cut11:05:200
1903201995515,3cyclictest0-21swapper/007:45:180
190320199542,9cyclictest1909251-21grep07:40:280
190320599531,23cyclictest0-21swapper/209:20:012
190320299531,19cyclictest0-21swapper/111:25:011
190320199531,24cyclictest1904551-21dropbear07:15:170
190320599502,26cyclictest0-21swapper/208:45:012
190320599502,26cyclictest0-21swapper/208:45:012
1903205994941,5cyclictest1933195-21munin-plugin-st10:05:002
1903202994928,11cyclictest0-21swapper/112:00:001
1903201994918,29cyclictest0-21swapper/011:44:430
1903202994836,8cyclictest0-21swapper/109:30:001
1903202994828,13cyclictest0-21swapper/111:35:001
1903202994738,5cyclictest1941626-21munin-plugin-st10:55:001
1903202994738,5cyclictest1941626-21munin-plugin-st10:55:001
1903202994735,6cyclictest0-21swapper/109:10:011
1903205994634,7cyclictest1949259-21grep11:35:302
1903205994634,7cyclictest1949259-21grep11:35:292
190320599462,19cyclictest0-21swapper/210:55:012
190320599462,19cyclictest0-21swapper/210:55:012
1903202994537,4cyclictest14-21rcu_preempt09:35:291
1903202994537,4cyclictest14-21rcu_preempt09:35:291
190320299446,5cyclictest0-21swapper/108:40:011
1903205994331,8cyclictest0-21swapper/209:05:002
1903202994334,6cyclictest0-21swapper/109:50:161
1903205994232,5cyclictest1913544-21grep08:05:282
1903202994232,5cyclictest0-21swapper/111:00:261
1903202994230,7cyclictest1905045-21grep07:15:271
1903202994229,9cyclictest0-21swapper/110:25:281
190320299422,23cyclictest0-21swapper/110:40:011
190320299422,23cyclictest0-21swapper/110:40:011
1903205994135,4cyclictest1915281-21sendmail08:20:002
1903205994134,4cyclictest1944155-21cron11:10:002
1903205994133,5cyclictest0-21swapper/208:25:162
1903205994130,7cyclictest0-21swapper/210:40:002
1903205994130,7cyclictest0-21swapper/210:40:002
1903202994130,7cyclictest1928029-21grep09:30:281
1903202994130,6cyclictest0-21swapper/107:55:151
1903202994130,4cyclictest0-21swapper/108:05:201
1903202994126,10cyclictest0-21swapper/108:45:191
1903205994029,6cyclictest1929782-21grep09:40:282
1903205994027,8cyclictest0-21swapper/210:05:212
190320599401,26cyclictest0-21swapper/209:50:012
1903202994028,8cyclictest0-21swapper/111:35:291
1903202994028,8cyclictest0-21swapper/111:35:291
1903202994028,7cyclictest0-21swapper/112:15:271
1903202994026,8cyclictest1907579-21grep07:30:291
1903202994026,8cyclictest1907579-21grep07:30:291
1903202994026,6cyclictest0-21swapper/109:20:001
1903202994026,10cyclictest231ktimers/112:05:131
1903205993932,4cyclictest14-21rcu_preempt10:15:292
1903205993930,5cyclictest1956158-21grep12:15:282
1903205993930,4cyclictest1911792-21unixbench_multi07:55:282
1903205993928,5cyclictest0-21swapper/210:45:262
1903205993918,12cyclictest311ktimers/210:30:142
1903202993932,4cyclictest0-21swapper/108:30:161
1903202993931,4cyclictest0-21swapper/107:45:151
1903202993928,7cyclictest0-21swapper/108:10:291
1903202993928,7cyclictest0-21swapper/108:10:291
1903202993928,6cyclictest1908448-21grep07:35:291
190320299391,31cyclictest1932552-21/usr/sbin/munin10:00:231
190320599385,5cyclictest0-21swapper/211:40:182
1903205993830,5cyclictest0-21swapper/207:50:002
1903205993826,7cyclictest1903960-21grep07:10:302
1903205993821,12cyclictest311ktimers/209:30:112
1903202993829,5cyclictest0-21swapper/108:15:291
1903202993824,9cyclictest0-21swapper/108:25:011
1903202993824,9cyclictest0-21swapper/108:25:011
1903205993729,4cyclictest0-21swapper/212:05:272
1903205993727,6cyclictest0-21swapper/209:15:292
1903202993730,4cyclictest0-21swapper/109:15:001
1903202993727,6cyclictest1940727-21grep10:45:291
1903202993727,6cyclictest1905937-21grep07:20:291
1903202993727,6cyclictest0-21swapper/109:05:001
1903202993726,8cyclictest0-21swapper/111:10:301
1903202993726,6cyclictest0-21swapper/109:25:011
1903205993627,4cyclictest0-21swapper/207:20:262
1903205993624,9cyclictest0-21swapper/207:15:282
1903205993624,7cyclictest0-21swapper/208:10:202
1903205993624,7cyclictest0-21swapper/208:10:202
1903202993627,5cyclictest1932283-21grep09:55:291
190320299362,3cyclictest0-21swapper/108:45:011
190320299362,3cyclictest0-21swapper/108:45:011
1903205993528,4cyclictest0-21swapper/211:30:282
1903202993528,4cyclictest0-21swapper/111:00:001
1903202993526,4cyclictest0-21swapper/111:50:011
1903202993526,4cyclictest0-21swapper/111:50:001
1903202993526,4cyclictest0-21swapper/110:40:191
1903205993426,4cyclictest14-21rcu_preempt07:30:292
1903205993426,4cyclictest14-21rcu_preempt07:30:292
1903205993426,4cyclictest0-21swapper/211:20:292
1903205993425,4cyclictest0-21swapper/210:55:292
1903205993424,5cyclictest1917836-21grep08:30:282
1903205993419,7cyclictest30-21rcuc/212:20:122
1903202993428,4cyclictest14-21rcu_preempt07:50:221
1903202993428,4cyclictest0-21swapper/112:30:201
1903202993427,4cyclictest0-21swapper/112:25:281
1903202993426,4cyclictest0-21swapper/111:50:201
1903202993425,5cyclictest0-21swapper/110:30:291
1903202993425,5cyclictest0-21swapper/110:10:271
1903202993425,5cyclictest0-21swapper/110:10:271
1903202993422,9cyclictest0-21swapper/107:40:291
1903202993421,8cyclictest0-21swapper/109:40:281
1903205993326,4cyclictest14-21rcu_preempt11:10:222
1903205993324,5cyclictest0-21swapper/211:45:272
1903205993324,5cyclictest0-21swapper/211:45:272
1903205993323,4cyclictest0-21swapper/211:00:202
1903205993322,8cyclictest30-21rcuc/211:15:102
1903205993322,8cyclictest0-21swapper/207:35:292
1903205993322,5cyclictest1934767-21grep10:10:272
1903205993322,5cyclictest1934767-21grep10:10:272
1903205993320,9cyclictest0-21swapper/212:35:012
1903205993224,6cyclictest0-21swapper/211:55:012
1903205993224,5cyclictest1932219-21grep09:55:282
1903205993224,4cyclictest14-21rcu_preempt10:40:262
1903205993224,4cyclictest14-21rcu_preempt09:05:242
1903205993223,6cyclictest0-21swapper/208:55:272
1903205993221,7cyclictest1931406-21grep09:50:262
1903205993219,9cyclictest0-21swapper/208:00:282
190320599321,26cyclictest0-21swapper/211:25:252
1903202993226,4cyclictest14-21rcu_preempt08:50:211
1903202993224,5cyclictest14-21rcu_preempt12:00:181
1903202993224,4cyclictest14-21rcu_preempt11:40:261
1903202993221,6cyclictest1936537-21grep10:20:281
1903205993123,6cyclictest1924100-21/usr/sbin/munin09:10:222
1903205993122,4cyclictest0-21swapper/208:50:272
1903205993118,7cyclictest1952735-21grep11:55:282
1903202993124,5cyclictest1945292-21/usr/sbin/munin11:15:211
190320599302,7cyclictest30-21rcuc/207:52:432
1903205993021,6cyclictest1927229-21grep09:25:272
1903205993021,6cyclictest0-21swapper/207:40:292
1903205993020,6cyclictest30-21rcuc/212:10:222
1903205993020,6cyclictest1920328-21grep08:45:282
1903202993021,6cyclictest1955248-21grep12:10:291
190320299301,3cyclictest0-21swapper/109:50:011
1903202993013,14cyclictest231ktimers/111:05:211
1903205992923,3cyclictest0-21swapper/210:20:282
1903205992922,5cyclictest1916120-21sshd08:24:392
1903205992922,5cyclictest1916120-21sshd08:24:392
1903205992920,6cyclictest1906813-21sshd07:27:442
1903205992919,6cyclictest0-21swapper/212:25:202
190320599291,26cyclictest0-21swapper/210:25:162
1903202992924,4cyclictest0-21swapper/112:35:151
1903202992923,4cyclictest0-21swapper/107:10:121
190320299291,26cyclictest0-21swapper/111:25:431
1903205992819,6cyclictest0-21swapper/209:40:012
1903205992819,6cyclictest0-21swapper/209:40:012
1903205992818,7cyclictest0-21swapper/207:10:022
190320599281,24cyclictest1947613-21kworker/u8:4+rpciod12:01:172
1903202992817,4cyclictest0-21swapper/108:05:021
1903202992722,3cyclictest14-21rcu_preempt10:05:191
1903202992720,4cyclictest22-21rcuc/107:25:281
1903202992719,6cyclictest0-21swapper/108:25:261
1903202992716,7cyclictest0-21swapper/110:15:271
1903205992619,4cyclictest0-21swapper/212:35:202
1903202992113,6cyclictest0-21swapper/107:10:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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