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2026-06-05 - 11:22

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 Fri Jun 05, 2026 00:44:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
7906549913012,15cyclictest839358-21apt-get23:55:011
79065399604,31cyclictest15-21rcuc/021:25:010
79065399604,31cyclictest15-21rcuc/021:25:010
790653995913,19cyclictest131ktimers/000:20:010
79065799571,33cyclictest0-21swapper/222:35:012
79065799571,30cyclictest0-21swapper/220:35:012
79065799564,13cyclictest791707-21irqstats19:15:012
79065799551,29cyclictest0-21swapper/220:40:012
79065799551,26cyclictest0-21swapper/219:35:012
790653995444,6cyclictest167350irq/118-8000000.ethernet-tx021:05:210
79065399543,25cyclictest20850irq/208-8000000.ethernet21:05:010
79065799531,30cyclictest0-21swapper/223:00:012
790654995315,30cyclictest0-21swapper/119:45:231
79065799523,27cyclictest30-21rcuc/221:25:012
79065799523,27cyclictest30-21rcuc/221:25:012
79065499529,34cyclictest0-21swapper/120:35:241
79065499522,21cyclictest0-21swapper/121:50:011
790653995232,17cyclictest131ktimers/000:20:110
790657995043,4cyclictest311ktimers/223:50:012
79065799501,35cyclictest0-21swapper/221:15:012
79065799501,27cyclictest0-21swapper/220:50:012
790653995042,4cyclictest167350irq/118-8000000.ethernet-tx021:55:310
79065799491,29cyclictest0-21swapper/221:55:012
790654994942,4cyclictest834219-21munin-plugin-st23:25:001
790653994941,4cyclictest167350irq/118-8000000.ethernet-tx019:10:010
790653994939,5cyclictest20650irq/252-8000000.ethernet00:05:310
790653994939,5cyclictest20650irq/252-8000000.ethernet00:05:310
790653994932,14cyclictest167350irq/118-8000000.ethernet-tx019:55:240
790653994931,15cyclictest167350irq/118-8000000.ethernet-tx020:00:290
790653994911,10cyclictest0-21swapper/020:30:000
790653994840,4cyclictest167350irq/118-8000000.ethernet-tx000:30:270
79065399481,8cyclictest833266-21tail23:15:300
79065399481,8cyclictest833266-21tail23:15:300
79065799471,31cyclictest0-21swapper/221:00:012
790654994730,13cyclictest846989-21grep00:35:311
790653994742,2cyclictest0-21swapper/022:05:000
790653994740,4cyclictest167350irq/118-8000000.ethernet-tx019:45:230
790653994737,6cyclictest20850irq/208-8000000.ethernet22:55:220
790657994639,3cyclictest817333-21munin-plugin-st21:45:002
790654994634,8cyclictest809642-21sendmail21:00:011
79065399466,10cyclictest807029-21gpgv20:45:010
790653994639,4cyclictest167350irq/118-8000000.ethernet-tx021:52:280
790653994638,4cyclictest20850irq/208-8000000.ethernet19:15:010
790653994637,5cyclictest167350irq/118-8000000.ethernet-tx020:20:000
790657994539,3cyclictest847060-21sendmail00:40:002
79065499457,9cyclictest0-21swapper/119:15:021
790654994533,9cyclictest823235-21sendmail22:20:001
790657994427,10cyclictest0-21swapper/222:00:232
790654994433,7cyclictest799333-21grep19:55:281
790653994437,4cyclictest20650irq/252-8000000.ethernet23:35:010
790653994435,5cyclictest839269-21unixbench_multi23:50:300
79065399442,40cyclictest0-21swapper/022:20:270
79065399442,40cyclictest0-21swapper/022:20:000
790657994332,5cyclictest0-21swapper/223:40:012
790654994327,12cyclictest0-21swapper/120:50:281
790653994336,4cyclictest167350irq/118-8000000.ethernet-tx020:05:240
79065399431,9cyclictest815440-21unixbench_multi21:30:280
79065399431,9cyclictest815440-21unixbench_multi21:30:280
79065399431,8cyclictest0-21swapper/023:05:010
790657994233,6cyclictest800268-21munin-plugin-st20:04:592
790657994232,6cyclictest833291-21unixbench_singl23:15:302
790657994232,6cyclictest833291-21unixbench_singl23:15:302
790657994231,5cyclictest0-21swapper/222:25:302
790657994230,9cyclictest826617-21sendmail22:40:002
790657994229,9cyclictest842769-21grep00:10:302
790657994229,7cyclictest311ktimers/219:25:122
790657994216,17cyclictest830193-21/usr/sbin/munin23:00:192
79065799421,23cyclictest0-21swapper/219:40:012
790654994234,5cyclictest205-21ptp019:15:271
790654994228,9cyclictest0-21swapper/121:25:211
790654994212,21cyclictest834417-21/usr/sbin/munin23:25:181
790653994235,4cyclictest20650irq/252-8000000.ethernet22:50:300
790653994234,4cyclictest0-21swapper/023:55:190
790653994233,6cyclictest0-21swapper/000:25:300
790653994231,6cyclictest792533-21grep19:15:270
79065399422,5cyclictest846717-21meminfo00:35:270
79065399422,5cyclictest840735-21if_eth000:00:210
79065399422,4cyclictest0-21swapper/023:45:270
79065399421,4cyclictest832135-21irqstats23:10:220
790657994130,8cyclictest1283-21cron22:10:002
790657994130,7cyclictest0-21swapper/200:30:182
790657994125,11cyclictest0-21swapper/222:10:272
790654994129,7cyclictest844521-21cron00:25:011
790653994134,4cyclictest20650irq/252-8000000.ethernet20:55:210
790653994133,4cyclictest842638-21sendmail_mailqu00:10:290
790653994124,15cyclictest0-21swapper/021:25:220
79065399411,5cyclictest794974-21ptp4l-jitter19:30:260
79065399411,4cyclictest821543-21munin-run22:10:000
790657994031,5cyclictest807159-21apt-key20:45:012
790657994029,6cyclictest818088-21grep21:45:292
790657994029,6cyclictest797638-21grep19:45:282
79065799401,11cyclictest0-21swapper/220:20:022
790654994027,9cyclictest0-21swapper/120:10:251
790654994027,8cyclictest812914-21grep21:15:301
790654994024,9cyclictest0-21swapper/122:10:271
790653994036,2cyclictest0-21swapper/020:30:100
790653994033,4cyclictest20650irq/252-8000000.ethernet20:35:190
790653994032,5cyclictest20850irq/208-8000000.ethernet19:55:010
790653994031,4cyclictest817253-21unixbench_multi21:40:290
790653994030,6cyclictest0-21swapper/020:10:270
790653994028,9cyclictest834643-21/usr/sbin/munin23:25:210
79065399402,4cyclictest0-21swapper/023:05:290
79065399402,3cyclictest822370-21sendmail-mta22:13:230
790653994022,15cyclictest131ktimers/020:20:110
79065399401,37cyclictest0-21swapper/021:10:180
790657993924,11cyclictest841982-21sh00:10:002
790657993924,11cyclictest841982-21sh00:10:002
79065799391,7cyclictest0-21swapper/223:05:012
790654993927,6cyclictest0-21swapper/121:30:291
790654993927,6cyclictest0-21swapper/121:30:291
790654993926,7cyclictest0-21swapper/122:35:011
790653993932,4cyclictest20650irq/252-8000000.ethernet23:40:010
790653993932,4cyclictest20650irq/252-8000000.ethernet22:45:170
790653993932,4cyclictest20650irq/252-8000000.ethernet22:40:240
790653993932,4cyclictest20650irq/252-8000000.ethernet21:35:180
790653993929,6cyclictest796316-21/usr/sbin/munin19:40:160
79065399391,36cyclictest0-21swapper/019:25:230
79065399391,35cyclictest796034-21munin-run19:40:000
790657993829,5cyclictest0-21swapper/221:35:012
790657993829,5cyclictest0-21swapper/221:35:012
790657993826,9cyclictest0-21swapper/223:10:272
790657993826,8cyclictest1660-21snmpd22:40:232
790657993826,8cyclictest0-21swapper/220:05:292
790654993826,8cyclictest0-21swapper/122:20:261
79065499381,30cyclictest795390-21/usr/sbin/munin19:35:171
790653993831,4cyclictest20650irq/252-8000000.ethernet22:35:230
790653993831,4cyclictest20650irq/252-8000000.ethernet22:30:260
790653993821,15cyclictest0-21swapper/020:50:110
79065399381,4cyclictest0-21swapper/022:25:300
79065399381,3cyclictest837682-21munin-run23:45:000
79065399381,35cyclictest0-21swapper/020:45:030
790657993728,4cyclictest0-21swapper/222:15:262
790657993725,8cyclictest0-21swapper/222:20:272
790657993725,8cyclictest0-21swapper/221:55:312
790654993726,6cyclictest0-21swapper/121:40:291
790654993725,8cyclictest843610-21grep00:15:301
790654993725,8cyclictest0-21swapper/120:15:251
790654993725,7cyclictest0-21swapper/122:50:301
79065499371,4cyclictest0-21swapper/119:35:001
79065499371,30cyclictest0-21swapper/123:15:291
79065499371,30cyclictest0-21swapper/123:15:291
790653993731,3cyclictest20650irq/252-8000000.ethernet23:20:260
79065399371,3cyclictest0-21swapper/019:20:250
79065399371,34cyclictest0-21swapper/021:45:140
790657993621,11cyclictest311ktimers/219:10:102
79065799361,3cyclictest0-21swapper/222:55:022
790657993613,15cyclictest810686-21/usr/sbin/munin21:05:192
790654993627,6cyclictest0-21swapper/122:30:001
790654993615,12cyclictest0-21swapper/100:25:281
79065399361,33cyclictest0-21swapper/021:15:150
79065799355,15cyclictest796247-21/usr/sbin/munin19:40:192
790657993526,6cyclictest814617-21grep21:25:302
790657993524,7cyclictest0-21swapper/200:15:302
79065799351,28cyclictest0-21swapper/223:25:162
790654993523,8cyclictest0-21swapper/119:50:251
790654993523,7cyclictest0-21swapper/121:10:271
79065499351,28cyclictest0-21swapper/123:55:181
79065499351,26cyclictest810973-21kernelversion21:05:231
790657993428,4cyclictest311ktimers/220:10:162
790657993426,4cyclictest0-21swapper/219:55:192
790657993419,10cyclictest0-21swapper/223:20:292
79065799341,27cyclictest0-21swapper/221:35:182
790654993426,5cyclictest0-21swapper/120:40:291
790654993426,4cyclictest0-21swapper/121:45:171
790654993425,6cyclictest0-21swapper/100:00:311
790654993425,5cyclictest0-21swapper/100:15:001
79065499341,28cyclictest1660-21snmpd20:04:531
79065499341,27cyclictest0-21swapper/122:40:201
79065499341,27cyclictest0-21swapper/120:20:171
79065499341,26cyclictest0-21swapper/119:25:221
790657993325,4cyclictest0-21swapper/223:40:172
790657993322,7cyclictest0-21swapper/223:50:292
790657993322,7cyclictest0-21swapper/220:25:282
790657993317,9cyclictest0-21swapper/223:55:052
790654993325,4cyclictest0-21swapper/123:10:011
790654993323,7cyclictest803846-21/usr/sbin/munin20:25:231
790654993323,5cyclictest0-21swapper/119:10:021
790654993321,4cyclictest0-21swapper/120:45:191
790654993320,10cyclictest836740-21sendmail23:40:001
79065799323,16cyclictest827657-21/usr/sbin/munin22:45:192
79065799322,9cyclictest0-21swapper/200:25:022
790657993215,12cyclictest311ktimers/219:50:142
790654993225,4cyclictest167450irq/126-8000000.ethernet-tx123:45:301
790654993223,6cyclictest0-21swapper/121:20:301
790654993223,6cyclictest0-21swapper/121:20:301
790654993220,8cyclictest0-21swapper/122:00:211
79065499321,28cyclictest793406-21unixbench_multi19:20:301
790657993123,5cyclictest0-21swapper/219:20:292
790657993121,7cyclictest802747-21grep20:15:272
79065799311,26cyclictest0-21swapper/223:30:162
790654993123,4cyclictest167450irq/126-8000000.ethernet-tx120:05:231
790654993123,4cyclictest167450irq/126-8000000.ethernet-tx100:05:311
790654993123,4cyclictest167450irq/126-8000000.ethernet-tx100:05:311
79065499312,27cyclictest804684-21/usr/sbin/munin20:30:271
790654993122,4cyclictest0-21swapper/122:55:231
790654993121,7cyclictest828208-21grep22:45:291
790654993121,7cyclictest816393-21grep21:35:291
790654993121,5cyclictest0-21swapper/123:40:201
790654993120,7cyclictest0-21swapper/122:05:291
790654993023,4cyclictest0-21swapper/119:40:291
790654993022,5cyclictest0-21swapper/122:40:001
79065499301,27cyclictest0-21swapper/123:30:231
79065499301,23cyclictest0-21swapper/121:00:151
790657992819,5cyclictest0-21swapper/219:10:012
790657992813,8cyclictest0-21swapper/221:05:012
79065799281,23cyclictest0-21swapper/221:20:012
790654992822,4cyclictest0-21swapper/123:12:271
790654992719,6cyclictest0-21swapper/123:00:311
790657992618,5cyclictest0-21swapper/220:50:272
790654992618,6cyclictest0-21swapper/100:30:261
79065499261,6cyclictest832-21systemd-network21:57:221
790657992518,4cyclictest311ktimers/200:00:202
790657992415,6cyclictest0-21swapper/200:25:242
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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