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2025-12-11 - 09:10

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 Thu Dec 11, 2025 00:44:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
19449799911135,65cyclictest0-21swapper/023:35:120
1944979999512,39cyclictest0-21swapper/022:15:020
1944979998413,32cyclictest0-21swapper/022:55:010
1944979998025,7cyclictest1959737-21unixbench_multi20:30:290
194497999797,33cyclictest0-21swapper/022:10:010
194497999742,18cyclictest0-21swapper/019:45:010
194497999729,29cyclictest0-21swapper/023:25:000
1944979997227,7cyclictest1957476-21df20:20:160
1944979997224,4cyclictest1961222-21phc2sys20:40:250
194497999689,38cyclictest1999960-21gpg-connect-age00:30:010
1944979996860,4cyclictest0-21swapper/022:20:110
1944979996744,16cyclictest0-21swapper/021:30:180
1944979996744,16cyclictest0-21swapper/021:30:170
1944979996628,3cyclictest1967911-21irqstats21:20:250
1944979996533,26cyclictest1987566-21/usr/sbin/munin23:15:280
1944979996527,3cyclictest1982578-21/usr/sbin/munin22:45:280
1944979996524,9cyclictest1989395-21grep23:25:290
194497999634,33cyclictest0-21swapper/020:30:010
1944979996323,33cyclictest1962983-21tail20:50:280
1944979996235,16cyclictest0-21swapper/021:10:140
1944979996216,12cyclictest2001156-21/usr/sbin/munin00:35:210
194497999621,48cyclictest0-21swapper/000:10:120
1944979996041,11cyclictest1961731-21apt-get20:45:160
1944979996020,31cyclictest1947966-21wc19:25:010
1944979995939,11cyclictest1968490-21apt-get21:25:160
1944979995830,3cyclictest1986921-21users23:10:290
1944979995827,8cyclictest1945534-21/usr/sbin/munin19:10:260
1944979995827,8cyclictest1945534-21/usr/sbin/munin19:10:260
1944979995824,29cyclictest0-21swapper/020:35:280
1944979995812,18cyclictest0-21swapper/020:15:010
1944979995734,13cyclictest0-21swapper/020:55:170
1944979995728,3cyclictest1984699-21diskstats23:00:180
1944979995728,3cyclictest1984699-21diskstats23:00:180
194498199567,25cyclictest22-21rcuc/121:10:011
194498199567,25cyclictest22-21rcuc/121:10:011
1944979995627,26cyclictest1984007-21/usr/sbin/munin22:55:230
1944979995623,8cyclictest1954027-21diskstats20:00:210
1944979995616,32cyclictest1985973-21mailstats23:05:290
1944981995547,5cyclictest22-21rcuc/100:20:021
1944981995547,5cyclictest22-21rcuc/100:20:011
1944979995544,5cyclictest1979555-21apt-get22:30:150
1944979995542,5cyclictest1951420-21apt-get19:45:190
1944979995539,11cyclictest1954795-21apt-get20:05:160
1944979995524,25cyclictest1971174-21df21:40:170
1944979995523,8cyclictest1956853-21kernelversion20:15:240
1944979995519,8cyclictest1965874-21wc21:10:010
1944979995519,8cyclictest1965874-21wc21:10:010
1944981995444,7cyclictest1287-21cron23:05:001
1944981995444,7cyclictest1287-21cron23:05:001
1944979995445,4cyclictest1949721-21apt-get19:35:140
1944979995439,8cyclictest1993992-21apt-get23:55:160
1944979995436,14cyclictest0-21swapper/022:15:120
1944979995432,3cyclictest2000263-21/usr/sbin/munin00:30:220
1944979995431,11cyclictest0-21swapper/022:35:140
1944979995429,14cyclictest0-21swapper/021:00:150
1944979995424,24cyclictest1991871-21/usr/sbin/munin23:40:280
1944979995414,33cyclictest1990262-21unixbench_singl23:30:280
194498199534,13cyclictest1945887-21munin-node19:15:011
194498199534,13cyclictest1945887-21munin-node19:15:011
1944981995340,8cyclictest1977592-21grep22:15:271
1944985995244,5cyclictest0-21swapper/222:20:012
1944981995243,5cyclictest1955434-21munin-plugin-st20:10:001
1944979995244,4cyclictest1993152-21apt-get23:50:160
1944979995239,7cyclictest1978973-21/usr/sbin/munin22:25:230
1944979995237,10cyclictest1966788-21apt-get21:15:160
1944979995233,13cyclictest1949179-21/usr/sbin/munin19:30:250
1944979995222,27cyclictest1995265-21ptp4l00:00:260
1944979995216,30cyclictest1971958-21dpkg21:45:090
1944979995136,9cyclictest1953098-21apt-get19:55:170
1944979995133,10cyclictest1992391-21/usr/sbin/munin23:45:180
1944979995131,13cyclictest1998668-21/usr/sbin/munin00:20:280
1944979995131,13cyclictest1998668-21/usr/sbin/munin00:20:270
1944979995128,15cyclictest1981826-21head22:40:270
1944979995124,25cyclictest1997852-21/usr/sbin/munin00:15:290
1944979995124,25cyclictest1997852-21/usr/sbin/munin00:15:290
1944979995122,3cyclictest1973581-21latency_hist21:55:010
1944979995122,3cyclictest1973581-21latency_hist21:55:010
1944985994942,4cyclictest1954596-21munin-plugin-st20:05:002
1944981994940,5cyclictest1994634-21munin-plugin-st23:59:591
1944981994936,10cyclictest0-21swapper/120:25:011
1944981994924,12cyclictest231ktimers/100:20:151
1944981994924,12cyclictest231ktimers/100:20:141
1944979994940,6cyclictest1946408-21/usr/sbin/munin19:15:170
1944979994938,4cyclictest1973634-21apt-get21:55:160
1944979994927,14cyclictest1945136-21latency_hist19:10:010
1944985994835,8cyclictest0-21swapper/221:55:012
1944985994835,8cyclictest0-21swapper/221:55:002
1944981994827,14cyclictest231ktimers/100:10:121
1944979994837,7cyclictest0-21swapper/021:35:290
1944979994837,7cyclictest0-21swapper/021:35:290
1944979994834,11cyclictest1952363-21/usr/sbin/munin19:50:170
1944979994833,10cyclictest1948181-21cut19:25:210
1944981994732,10cyclictest0-21swapper/123:30:291
1944981994730,11cyclictest231ktimers/120:40:111
1944981994728,15cyclictest231ktimers/121:45:101
1944981994728,13cyclictest231ktimers/120:15:121
1944985994637,6cyclictest1963211-21munin-plugin-st20:55:002
1944981994630,10cyclictest0-21swapper/119:45:311
1944981994617,10cyclictest1979552-21/usr/sbin/munin22:30:181
1944979994617,12cyclictest1996282-21unixbench_singl00:05:310
1944979994617,12cyclictest1996282-21unixbench_singl00:05:310
194498599452,36cyclictest0-21swapper/223:30:232
1944981994529,11cyclictest1950365-21munin-plugin-st19:40:001
1944985994434,5cyclictest0-21swapper/200:05:242
1944985994434,5cyclictest0-21swapper/200:05:232
1944985994429,8cyclictest1964061-21sendmail21:00:002
1944985994425,11cyclictest0-21swapper/219:40:282
1944981994432,9cyclictest0-21swapper/122:35:291
1944979994430,11cyclictest1974693-21/usr/sbin/munin22:00:230
1944985994327,9cyclictest0-21swapper/222:30:252
1944981994316,15cyclictest231ktimers/119:55:161
1944985994225,10cyclictest0-21swapper/219:15:282
1944981994235,5cyclictest231ktimers/120:50:011
1944985994129,8cyclictest0-21swapper/220:35:292
1944985994127,7cyclictest0-21swapper/219:55:302
1944985994125,8cyclictest0-21swapper/220:45:292
1944981994128,9cyclictest0-21swapper/120:50:291
1944985994028,7cyclictest0-21swapper/219:50:182
1944985994025,11cyclictest0-21swapper/221:25:262
194498199405,18cyclictest22-21rcuc/121:55:011
194498199405,18cyclictest22-21rcuc/121:55:011
1944985993930,5cyclictest0-21swapper/221:35:292
1944985993930,5cyclictest0-21swapper/221:35:292
1944985993926,8cyclictest0-21swapper/200:15:292
1944985993926,8cyclictest0-21swapper/200:15:292
1944985993924,10cyclictest0-21swapper/221:10:262
1944981993925,9cyclictest0-21swapper/119:30:291
1944981993921,9cyclictest0-21swapper/123:35:211
1944981993919,13cyclictest231ktimers/121:15:131
1944981993915,15cyclictest231ktimers/121:20:171
1944985993832,4cyclictest168450irq/134-8000000.ethernet-tx221:45:242
1944985993831,4cyclictest1991182-21sendmail23:40:002
1944985993829,5cyclictest1988646-21munin-plugin-st23:25:012
1944985993829,5cyclictest1968290-21munin-plugin-st21:25:002
1944985993829,5cyclictest0-21swapper/200:35:272
1944985993829,4cyclictest0-21swapper/221:40:292
1944985993825,4cyclictest0-21swapper/222:20:282
194498599381,2cyclictest0-21swapper/223:20:012
1944981993828,6cyclictest0-21swapper/123:05:301
1944981993825,6cyclictest0-21swapper/100:25:291
1944981993822,8cyclictest0-21swapper/122:50:311
1944985993729,3cyclictest0-21swapper/222:25:272
1944985993727,6cyclictest0-21swapper/220:10:292
1944985993726,8cyclictest1999975-21latency_hist00:30:002
1944985993725,7cyclictest1976749-21grep22:10:302
1944985993725,7cyclictest0-21swapper/221:15:132
1944985993715,15cyclictest168450irq/134-8000000.ethernet-tx220:30:272
1944981993728,6cyclictest0-21swapper/119:25:301
1944981993724,8cyclictest0-21swapper/120:55:311
1944981993724,7cyclictest1976754-21grep22:10:301
1944981993718,13cyclictest231ktimers/123:40:161
1944981993624,8cyclictest0-21swapper/121:30:311
1944981993624,8cyclictest0-21swapper/121:30:311
1944981993623,7cyclictest0-21swapper/122:55:291
194498199361,4cyclictest0-21swapper/120:35:011
1944981993613,13cyclictest1977871-21/usr/sbin/munin22:20:181
1944985993528,3cyclictest1958884-21unixbench_multi20:25:312
1944985993525,4cyclictest0-21swapper/219:40:012
1944985993517,13cyclictest1993989-21/usr/sbin/munin23:55:182
1944981993522,5cyclictest0-21swapper/122:00:001
1944981993517,15cyclictest231ktimers/123:10:121
194498199351,29cyclictest0-21swapper/121:10:251
194498199351,28cyclictest1964266-21/usr/sbin/munin21:00:281
194498199351,27cyclictest1974488-21/usr/sbin/munin22:00:261
194498599344,25cyclictest0-21swapper/219:49:262
1944985993423,8cyclictest1998313-21/usr/sbin/munin00:20:292
1944985993423,8cyclictest1998313-21/usr/sbin/munin00:20:292
1944985993421,7cyclictest0-21swapper/222:05:172
194498599341,27cyclictest0-21swapper/200:10:202
194498199342,11cyclictest1993149-21/usr/sbin/munin23:50:211
1944981993419,8cyclictest1982440-21phc2sys-jitter22:45:261
194498199341,28cyclictest0-21swapper/119:52:271
1944985993326,4cyclictest168450irq/134-8000000.ethernet-tx220:15:252
1944985993323,5cyclictest0-21swapper/219:10:012
1944985993322,8cyclictest0-21swapper/221:55:292
1944985993320,9cyclictest0-21swapper/222:50:272
194498599331,2cyclictest0-21swapper/220:05:292
194498599331,26cyclictest1994906-21df00:00:162
1944981993322,6cyclictest1992891-21grep23:45:271
1944981993320,8cyclictest0-21swapper/119:40:231
194498199331,26cyclictest0-21swapper/121:40:161
1944985993225,3cyclictest1965684-21unixbench_singl21:05:292
1944985993225,3cyclictest1965684-21unixbench_singl21:05:282
1944985993218,10cyclictest0-21swapper/219:20:172
1944981993225,4cyclictest0-21swapper/120:25:311
1944981993224,5cyclictest1975330-21/usr/sbin/munin22:05:211
1944981993223,4cyclictest0-21swapper/123:25:211
1944981993222,7cyclictest1988531-21grep23:20:291
1944981993218,9cyclictest0-21swapper/100:35:211
1944985993125,3cyclictest1993722-21grep23:50:312
1944985993125,3cyclictest168450irq/134-8000000.ethernet-tx219:25:132
1944985993123,5cyclictest1986036-21grep23:05:302
1944985993123,5cyclictest1981777-21unixbench_multi22:40:282
1944985993121,6cyclictest0-21swapper/200:30:212
1944985993114,15cyclictest168450irq/134-8000000.ethernet-tx223:41:262
194498599311,28cyclictest0-21swapper/219:10:172
194498599311,28cyclictest0-21swapper/219:10:172
1944981993125,4cyclictest168350irq/126-8000000.ethernet-tx121:36:291
1944981993125,4cyclictest168350irq/126-8000000.ethernet-tx121:36:291
1944981993123,4cyclictest1932319-21kworker/u8:0-ext4-rsv-conversion19:10:011
1944981993122,6cyclictest1953953-21/usr/sbin/munin20:00:281
1944981993119,7cyclictest0-21swapper/100:05:221
1944981993119,7cyclictest0-21swapper/100:05:221
194498199311,4cyclictest0-21swapper/120:40:011
194498199311,27cyclictest1946585-21sshd19:15:221
194498199311,27cyclictest0-21swapper/100:30:291
1944985993020,5cyclictest0-21swapper/221:30:312
1944985993020,5cyclictest0-21swapper/221:30:312
1944985993018,8cyclictest0-21swapper/223:50:002
1944981993016,9cyclictest0-21swapper/122:25:291
194498199301,24cyclictest0-21swapper/122:40:161
1944985992923,4cyclictest1989488-21munin-plugin-st23:30:012
1944985992922,4cyclictest0-21swapper/222:45:292
1944985992920,7cyclictest1949503-21sshd19:32:212
1944985992919,5cyclictest0-21swapper/220:40:192
194498599290,27cyclictest204-21pr/ttyS223:00:002
1944981992922,4cyclictest0-21swapper/123:15:261
1944981992921,4cyclictest22-21rcuc/120:10:291
1944981992916,8cyclictest0-21swapper/119:20:231
1944985992821,4cyclictest168450irq/134-8000000.ethernet-tx222:35:242
1944985992819,7cyclictest311ktimers/223:00:232
1944985992819,7cyclictest311ktimers/223:00:232
1944985992816,9cyclictest1975120-21sshd22:04:232
194498599281,25cyclictest0-21swapper/223:10:172
194498199287,12cyclictest1968487-21/usr/sbin/munin21:25:191
194498199281,25cyclictest0-21swapper/100:02:241
1944985992618,6cyclictest311ktimers/220:20:272
1944985992416,4cyclictest0-21swapper/221:00:212
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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