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2026-04-22 - 08:39

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 Apr 22, 2026 00:44:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3904622996051,4cyclictest167350irq/118-8000000.ethernet-tx023:45:220
390462299605,13cyclictest167350irq/118-8000000.ethernet-tx019:40:010
3904622995926,29cyclictest0-21swapper/020:40:280
3904622995748,4cyclictest167350irq/118-8000000.ethernet-tx021:40:010
3904622995350,2cyclictest0-21swapper/019:40:200
3904622995345,5cyclictest3914254-21munin-run20:05:000
3904622995242,4cyclictest0-21swapper/022:45:110
3904622995144,4cyclictest0-21swapper/022:30:120
3904622995042,4cyclictest0-21swapper/020:25:140
3904622995042,4cyclictest0-21swapper/000:20:150
3904622994938,7cyclictest0-21swapper/022:00:200
3904627994735,8cyclictest3946311-21grep23:10:282
3904627994733,10cyclictest3930298-21sendmail21:39:592
3904622994738,5cyclictest20650irq/252-8000000.ethernet22:10:260
3904622994738,5cyclictest20650irq/252-8000000.ethernet22:10:260
3904627994638,5cyclictest3941376-21munin-plugin-st22:45:002
3904627994634,6cyclictest0-21swapper/220:55:292
3904627994620,19cyclictest311ktimers/223:45:002
3904625994639,4cyclictest3926764-21tr21:15:291
3904625994632,9cyclictest3918161-21phc2sys20:25:261
3904625994632,10cyclictest1283-21cron22:50:001
3904622994625,17cyclictest20850irq/208-8000000.ethernet23:10:290
3904625994535,6cyclictest0-21swapper/123:25:011
3904622994533,8cyclictest131ktimers/000:30:120
3904627994437,4cyclictest3938839-21munin-plugin-st22:30:002
3904627994436,5cyclictest3931243-21munin-plugin-st21:45:002
3904625994437,4cyclictest3936297-21munin-plugin-st22:15:011
3904625994437,4cyclictest3936297-21munin-plugin-st22:15:011
3904625994436,4cyclictest167450irq/126-8000000.ethernet-tx120:45:271
3904625994430,9cyclictest0-21swapper/100:00:311
3904622994438,4cyclictest131ktimers/022:30:020
3904627994335,4cyclictest0-21swapper/222:35:312
3904627994334,5cyclictest0-21swapper/219:30:282
3904627994330,9cyclictest0-21swapper/220:25:002
3904625994330,8cyclictest0-21swapper/119:40:281
3904622994335,4cyclictest167350irq/118-8000000.ethernet-tx019:20:170
3904622994330,9cyclictest3954189-21cron00:00:010
3904622994324,4cyclictest23850irq/422-mmc123:55:020
3904627994232,6cyclictest3960148-21grep00:30:272
3904627994232,6cyclictest3945509-21grep23:05:292
3904627994231,8cyclictest0-21swapper/219:30:002
3904627994229,9cyclictest0-21swapper/220:30:002
3904625994234,5cyclictest3933774-21sendmail22:00:001
3904625994234,5cyclictest3933774-21sendmail22:00:001
390462299425,34cyclictest131ktimers/020:15:120
3904622994235,4cyclictest167350irq/118-8000000.ethernet-tx019:30:180
3904622994235,4cyclictest0-21swapper/000:09:590
3904622994234,4cyclictest20650irq/252-8000000.ethernet22:00:000
3904622994234,4cyclictest20650irq/252-8000000.ethernet22:00:000
3904622994232,5cyclictest0-21swapper/022:05:300
390462299421,5cyclictest3956731-21apt-get00:15:010
390462299421,38cyclictest0-21swapper/020:35:160
390462799418,12cyclictest32-21ksoftirqd/219:50:012
3904627994136,3cyclictest3906556-21sendmail19:20:012
3904627994133,4cyclictest0-21swapper/200:20:212
3904627994133,3cyclictest3938000-21munin-plugin-st22:25:002
3904627994127,7cyclictest3949795-21grep23:30:292
3904627994126,9cyclictest0-21swapper/219:10:282
3904625994132,4cyclictest0-21swapper/121:00:171
3904625994129,8cyclictest0-21swapper/120:00:291
3904625994129,8cyclictest0-21swapper/119:25:281
3904625994127,10cyclictest0-21swapper/122:00:261
3904622994134,4cyclictest167350irq/118-8000000.ethernet-tx023:20:230
3904622994133,5cyclictest3949054-21munin-plugin-st23:29:590
3904622994130,7cyclictest3944176-21df23:00:170
3904622994129,9cyclictest0-21swapper/020:55:290
3904627994031,5cyclictest0-21swapper/223:35:262
3904627994031,4cyclictest0-21swapper/219:55:222
3904625994033,4cyclictest3909556-21sh19:35:211
3904625994032,4cyclictest167450irq/126-8000000.ethernet-tx120:20:261
3904625994031,4cyclictest167450irq/126-8000000.ethernet-tx123:10:221
3904625994030,6cyclictest3932083-21munin-plugin-st21:50:001
3904625994029,6cyclictest0-21swapper/122:15:221
3904625994028,7cyclictest0-21swapper/123:35:291
3904625994028,7cyclictest0-21swapper/120:40:281
3904625994027,10cyclictest0-21swapper/121:15:001
390462599401,32cyclictest3905911-21/usr/sbin/munin19:15:251
3904622994034,4cyclictest3928606-21cron21:30:000
3904622994032,4cyclictest167350irq/118-8000000.ethernet-tx022:55:200
3904622994031,4cyclictest0-21swapper/020:05:300
390462299401,5cyclictest3960578-21lsblk00:35:230
390462299401,5cyclictest3960578-21lsblk00:35:230
3904627993930,5cyclictest3949018-21grep23:25:292
3904627993929,6cyclictest0-21swapper/222:30:192
3904627993921,14cyclictest311ktimers/222:00:132
3904625993932,4cyclictest3957674-21sendmail00:20:001
3904625993925,9cyclictest0-21swapper/123:00:181
3904625993925,8cyclictest0-21swapper/122:50:271
3904625993925,8cyclictest0-21swapper/122:50:271
3904622993932,4cyclictest20650irq/252-8000000.ethernet21:45:260
3904622993930,5cyclictest20650irq/252-8000000.ethernet21:10:020
3904622993930,5cyclictest0-21swapper/022:15:290
3904622993930,4cyclictest0-21swapper/020:00:010
3904622993929,5cyclictest0-21swapper/023:40:300
3904622993925,9cyclictest0-21swapper/020:10:260
390462299391,4cyclictest3925693-21irqstats21:10:260
3904627993827,7cyclictest3925161-21grep21:05:292
3904627993826,8cyclictest0-21swapper/222:05:312
3904627993824,10cyclictest0-21swapper/221:55:222
3904627993824,10cyclictest0-21swapper/221:55:212
3904627993813,15cyclictest311ktimers/223:00:142
3904627993811,15cyclictest311ktimers/220:15:122
390462599387,21cyclictest0-21swapper/121:30:001
390462599386,11cyclictest3939875-21/usr/sbin/munin22:35:191
3904625993831,4cyclictest167450irq/126-8000000.ethernet-tx119:55:261
3904625993829,4cyclictest167450irq/126-8000000.ethernet-tx100:20:241
3904622993831,3cyclictest3929554-21latency_hist21:35:010
3904622993831,3cyclictest3929554-21latency_hist21:35:010
3904622993826,8cyclictest3931138-21grep21:40:290
3904622993826,7cyclictest3924514-21cat21:05:020
390462299381,35cyclictest0-21swapper/020:50:120
390462299381,35cyclictest0-21swapper/020:50:120
3904627993730,4cyclictest0-21swapper/222:45:212
3904625993732,2cyclictest0-21swapper/121:35:251
3904625993727,5cyclictest0-21swapper/123:45:251
3904625993724,9cyclictest0-21swapper/119:50:261
3904625993723,10cyclictest0-21swapper/119:35:011
390462599371,29cyclictest3949497-21if_eth123:30:231
3904622993730,5cyclictest20850irq/208-8000000.ethernet21:20:290
3904622993730,4cyclictest20650irq/252-8000000.ethernet23:05:180
3904622993730,4cyclictest20650irq/252-8000000.ethernet22:35:210
3904622993730,4cyclictest20650irq/252-8000000.ethernet19:10:150
3904622993729,4cyclictest3908151-21unixbench_multi19:25:270
3904622993716,8cyclictest3125638-1kworker/0:1H+mmc_complete21:20:010
3904627993629,5cyclictest0-21swapper/222:15:282
3904627993628,5cyclictest0-21swapper/220:05:292
3904627993628,4cyclictest0-21swapper/220:55:012
3904627993628,4cyclictest0-21swapper/220:55:012
3904627993627,6cyclictest3948126-21munin-plugin-st23:25:012
3904627993625,7cyclictest0-21swapper/221:25:292
3904627993623,10cyclictest311ktimers/221:00:142
3904627993620,11cyclictest0-21swapper/220:35:282
390462799361,29cyclictest0-21swapper/200:25:232
3904622993629,4cyclictest20850irq/208-8000000.ethernet21:55:000
3904622993629,4cyclictest20650irq/252-8000000.ethernet20:20:180
3904622993629,4cyclictest0-21swapper/020:30:110
3904622993628,5cyclictest20850irq/208-8000000.ethernet23:35:000
3904622993626,5cyclictest0-21swapper/019:15:270
390462299362,4cyclictest3950696-21grep23:35:290
390462299361,3cyclictest0-21swapper/000:15:120
3904627993527,5cyclictest3957606-21grep00:15:292
390462599353,29cyclictest0-21swapper/120:10:281
3904625993528,4cyclictest0-21swapper/122:40:291
3904625993518,9cyclictest0-21swapper/121:40:191
390462599351,3cyclictest3956377-21kernelversion00:10:241
3904622993529,4cyclictest20850irq/208-8000000.ethernet23:15:250
3904622993528,4cyclictest20650irq/252-8000000.ethernet22:50:160
3904622993528,4cyclictest20650irq/252-8000000.ethernet22:50:160
3904622993528,4cyclictest20650irq/252-8000000.ethernet19:45:160
3904622993527,4cyclictest0-21swapper/020:45:160
3904627993426,5cyclictest3925962-21grep21:10:302
3904627993424,5cyclictest0-21swapper/200:05:232
3904627993422,10cyclictest3943897-21sendmail22:59:592
3904627993417,10cyclictest0-21swapper/219:35:222
3904627993415,15cyclictest311ktimers/223:50:112
3904625993427,4cyclictest0-21swapper/119:10:271
3904625993423,7cyclictest0-21swapper/119:20:271
390462599341,3cyclictest3955539-21kernelversion00:05:241
3904622993427,4cyclictest20850irq/208-8000000.ethernet00:00:170
3904622993418,4cyclictest3935704-21kworker/u8:2+events_power_efficient22:25:020
390462299341,31cyclictest0-21swapper/022:41:080
390462799334,15cyclictest3907322-21grep19:20:272
3904627993325,4cyclictest0-21swapper/220:45:212
3904627993323,6cyclictest0-21swapper/221:20:302
3904627993322,7cyclictest3932806-21grep21:50:282
3904627993321,8cyclictest0-21swapper/223:55:262
3904627993317,8cyclictest0-21swapper/223:50:012
3904625993327,4cyclictest0-21swapper/100:40:001
3904625993327,4cyclictest0-21swapper/100:40:001
3904625993321,8cyclictest0-21swapper/123:05:291
3904625993320,8cyclictest0-21swapper/123:50:181
3904622993319,9cyclictest0-21swapper/019:10:010
390462799325,20cyclictest3912465-21grep19:50:282
3904627993223,6cyclictest0-21swapper/200:00:312
3904627993215,4cyclictest3923521-21kworker/u8:0-events_freezable_power_21:20:012
3904625993221,8cyclictest0-21swapper/119:45:251
390462599321,4cyclictest0-21swapper/123:25:021
3904622993212,10cyclictest0-21swapper/019:55:010
3904627993123,5cyclictest0-21swapper/220:30:272
3904627993122,5cyclictest3915891-21grep20:10:282
3904627993122,5cyclictest0-21swapper/223:15:222
3904627993120,6cyclictest0-21swapper/221:45:202
3904627993117,9cyclictest311ktimers/220:00:162
3904625993123,5cyclictest3919234-21grep20:30:281
3904625993123,5cyclictest0-21swapper/123:00:001
3904625993123,5cyclictest0-21swapper/122:25:271
3904625993123,5cyclictest0-21swapper/121:54:591
3904625993119,9cyclictest0-21swapper/123:15:221
3904625993118,9cyclictest0-21swapper/121:30:201
3904625993118,9cyclictest0-21swapper/121:30:191
3904627993021,7cyclictest0-21swapper/219:40:282
3904627993020,5cyclictest3920902-21grep20:40:282
3904627993020,5cyclictest0-21swapper/200:15:022
390462799301,26cyclictest3935654-21/usr/sbin/munin22:10:262
390462799301,26cyclictest3935654-21/usr/sbin/munin22:10:262
3904625993023,4cyclictest0-21swapper/121:05:271
3904625993018,8cyclictest0-21swapper/100:30:201
3904622993024,3cyclictest3959041-21/usr/sbin/munin00:25:250
3904627992913,8cyclictest3943007-21unixbench_singl22:50:262
3904627992913,8cyclictest3943007-21unixbench_singl22:50:262
390462599291,2cyclictest0-21swapper/122:10:011
390462599281,25cyclictest0-21swapper/100:29:161
390462799274,16cyclictest3961005-21head00:35:302
390462799274,16cyclictest3961005-21head00:35:302
390462799274,16cyclictest3928982-21cut21:30:212
390462799274,16cyclictest3928982-21cut21:30:202
3904625992721,4cyclictest3937992-21cron22:25:001
3904625992721,3cyclictest0-21swapper/122:30:281
3904625992720,4cyclictest0-21swapper/120:35:181
3904625992717,6cyclictest0-21swapper/120:15:241
3904625992618,4cyclictest0-21swapper/120:05:251
390462599261,23cyclictest0-21swapper/123:43:151
390462599251,3cyclictest0-21swapper/120:55:021
390462599251,3cyclictest0-21swapper/120:55:021
3904625992418,3cyclictest0-21swapper/120:56:201
3904625992417,4cyclictest0-21swapper/121:20:291
3904625992416,6cyclictest231ktimers/123:55:031
3904627992312,5cyclictest30-21rcuc/219:10:012
390462599182,10cyclictest0-21swapper/119:10:011
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