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2026-08-25 - 04:13

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 all highest latencies:
System rackeslot6s.osadl.org (updated Tue Aug 25, 2026 00:44:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
92453399945,21cyclictest972035-21apt-get23:55:021
92453399945,21cyclictest972035-21apt-get23:55:021
924532998981,6cyclictest0-21swapper/023:40:020
92453399589,7cyclictest928155-21apt-get19:30:011
92453299562,47cyclictest0-21swapper/020:10:020
92453599552,23cyclictest0-21swapper/221:50:022
924535995343,6cyclictest927211-21grep19:20:292
92453599526,17cyclictest0-21swapper/219:45:002
92453599521,42cyclictest0-21swapper/221:00:012
92453599521,42cyclictest0-21swapper/221:00:012
92453399515,15cyclictest14-21rcu_preempt00:20:011
92453599501,25cyclictest0-21swapper/222:15:022
92453599501,25cyclictest0-21swapper/222:15:022
924533995043,4cyclictest938473-21munin-plugin-st20:30:011
924533995042,5cyclictest972039-21munin-plugin-st23:55:001
924532995042,5cyclictest969722-21grep23:30:280
924535994937,9cyclictest926473-21sendmail19:20:002
924533994933,12cyclictest231ktimers/121:45:181
924533994930,12cyclictest0-21swapper/100:10:311
924532994941,4cyclictest167350irq/118-8000000.ethernet-tx020:10:160
924532994941,4cyclictest0-21swapper/019:10:010
924532994925,20cyclictest20650irq/252-8000000.ethernet22:30:300
924532994841,4cyclictest167350irq/118-8000000.ethernet-tx019:34:590
924532994832,12cyclictest946920-21sendmail21:20:000
924532994824,20cyclictest20650irq/252-8000000.ethernet20:15:010
92453299481,10cyclictest0-21swapper/000:10:010
924533994736,6cyclictest933190-21grep19:55:291
924533994733,8cyclictest231ktimers/123:25:151
924532994740,4cyclictest131ktimers/019:25:010
924535994631,11cyclictest0-21swapper/220:25:002
92453599461,24cyclictest0-21swapper/222:40:002
924532994639,4cyclictest20650irq/252-8000000.ethernet22:05:310
924532994638,4cyclictest167350irq/118-8000000.ethernet-tx022:10:220
924532994638,4cyclictest167350irq/118-8000000.ethernet-tx022:10:220
924532994631,8cyclictest972886-21grep23:57:150
924532994631,8cyclictest972886-21grep23:57:150
924532994624,16cyclictest15-21rcuc/021:05:000
92453599451,30cyclictest0-21swapper/220:20:022
924533994530,9cyclictest0-21swapper/119:15:011
924532994539,3cyclictest167350irq/118-8000000.ethernet-tx023:40:300
924532994538,4cyclictest167350irq/118-8000000.ethernet-tx019:25:240
924532994536,6cyclictest933257-21unixbench_singl19:55:300
92453299451,42cyclictest0-21swapper/019:45:190
92453299451,41cyclictest0-21swapper/021:05:220
924532994437,3cyclictest0-21swapper/000:30:230
92453299443,5cyclictest953359-21/usr/sbin/munin21:55:240
924532994429,13cyclictest167350irq/118-8000000.ethernet-tx020:20:150
924532994426,10cyclictest0-21swapper/021:40:290
924533994327,11cyclictest0-21swapper/123:10:291
924532994336,4cyclictest167350irq/118-8000000.ethernet-tx023:15:250
924532994331,8cyclictest0-21swapper/023:10:290
92453299432,39cyclictest0-21swapper/019:50:250
924535994234,4cyclictest14-21rcu_preempt22:20:182
924535994228,10cyclictest0-21swapper/223:30:262
924533994232,8cyclictest231ktimers/121:30:151
924533994230,9cyclictest231ktimers/122:35:141
924533994214,14cyclictest952280-21/usr/sbin/munin21:50:181
924532994233,6cyclictest952882-21grep21:50:270
924532994228,11cyclictest0-21swapper/021:10:280
92453299422,5cyclictest968632-21memory23:25:250
92453299422,4cyclictest947775-21munin-run21:25:010
92453299422,4cyclictest947775-21munin-run21:25:010
924532994222,14cyclictest0-21swapper/021:30:300
92453299421,35cyclictest956841-21tail22:15:260
92453299421,11cyclictest0-21swapper/022:25:000
924535994129,5cyclictest0-21swapper/220:39:592
924533994133,5cyclictest926463-21run-parts19:20:001
924533994130,7cyclictest1653-21lldpd22:25:011
924533994128,7cyclictest943464-21grep20:55:271
924533994128,7cyclictest943464-21grep20:55:271
924533994124,9cyclictest0-21swapper/123:20:261
92453399411,33cyclictest0-21swapper/121:30:001
924532994135,3cyclictest167350irq/118-8000000.ethernet-tx022:55:150
924532994134,4cyclictest0-21swapper/019:20:010
92453299412,5cyclictest943195-21meminfo20:55:240
92453299412,5cyclictest943195-21meminfo20:55:230
92453299412,4cyclictest939047-21/usr/sbin/munin20:30:270
92453299411,36cyclictest968291-21wc23:25:020
924535994025,10cyclictest0-21swapper/221:00:282
924533994030,6cyclictest971413-21grep23:40:291
924533994027,9cyclictest0-21swapper/122:40:191
92453299403,3cyclictest0-21swapper/023:50:010
924532994031,6cyclictest0-21swapper/000:15:010
924532994027,9cyclictest0-21swapper/023:05:290
92453299402,5cyclictest942182-21fschecks_time20:50:220
92453299401,9cyclictest979219-21latency_hist00:40:010
92453299401,9cyclictest979219-21latency_hist00:40:000
92453299401,37cyclictest0-21swapper/022:45:270
92453299401,37cyclictest0-21swapper/019:10:270
92453299401,2cyclictest0-21swapper/020:45:170
924535993929,6cyclictest0-21swapper/200:25:302
924535993927,7cyclictest0-21swapper/223:55:012
92453599392,24cyclictest0-21swapper/219:45:002
924533993926,9cyclictest231ktimers/120:10:141
924533993926,8cyclictest0-21swapper/120:20:301
924532993932,4cyclictest20850irq/208-8000000.ethernet21:40:000
924532993932,4cyclictest20650irq/252-8000000.ethernet22:35:280
92453299391,9cyclictest0-21swapper/019:45:000
92453299391,3cyclictest964734-21sshd23:03:070
92453299391,36cyclictest0-21swapper/000:25:170
924535993828,6cyclictest963054-21munin-plugin-st22:55:012
924535993828,6cyclictest963054-21munin-plugin-st22:55:012
924535993824,11cyclictest0-21swapper/200:05:312
924535993818,10cyclictest958196-21/usr/sbin/munin22:25:192
92453599381,31cyclictest1660-21snmpd21:35:272
92453399385,4cyclictest0-21swapper/120:35:021
924533993831,4cyclictest0-21swapper/120:45:011
924533993825,8cyclictest231ktimers/122:10:101
924533993825,8cyclictest231ktimers/122:10:101
924533993825,10cyclictest231ktimers/120:35:121
924533993824,10cyclictest979128-21sendmail00:40:001
924533993824,10cyclictest979128-21sendmail00:40:001
92453299386,4cyclictest972042-21http23:55:000
924532993825,9cyclictest0-21swapper/021:45:300
924535993727,5cyclictest0-21swapper/221:20:292
924535993727,5cyclictest0-21swapper/221:20:292
924535993724,9cyclictest0-21swapper/220:45:272
92453599371,4cyclictest936015-21wc20:15:012
92453599371,30cyclictest947974-21/usr/sbin/munin21:25:222
92453399376,28cyclictest0-21swapper/123:31:191
924533993725,8cyclictest0-21swapper/122:00:311
924533993720,13cyclictest231ktimers/122:50:111
924533993720,13cyclictest231ktimers/122:50:111
924532993730,4cyclictest167350irq/118-8000000.ethernet-tx000:20:140
924532993728,7cyclictest975736-21munin-plugin-st00:20:000
92453299371,3cyclictest960903-21ssh22:40:210
92453299371,34cyclictest0-21swapper/022:50:180
92453299371,34cyclictest0-21swapper/022:50:180
92453299371,34cyclictest0-21swapper/020:40:050
92453299371,34cyclictest0-21swapper/020:00:260
92453299371,34cyclictest0-21swapper/000:00:280
924535993629,3cyclictest0-21swapper/221:50:252
924535993624,7cyclictest0-21swapper/223:05:292
924535993621,11cyclictest0-21swapper/222:55:302
924535993620,4cyclictest0-21swapper/222:40:192
92453599361,2cyclictest0-21swapper/223:40:022
924533993626,5cyclictest957048-21grep22:15:281
924533993626,5cyclictest0-21swapper/123:15:291
924533993625,8cyclictest955460-21munin-plugin-st22:10:001
924533993619,8cyclictest0-21swapper/100:20:161
92453399361,29cyclictest965768-21cut23:10:021
924532993617,17cyclictest20650irq/252-8000000.ethernet20:35:180
924535993527,5cyclictest929934-21sendmail19:40:012
924535993527,5cyclictest929934-21sendmail19:40:012
924535993526,5cyclictest0-21swapper/223:25:282
924535993523,9cyclictest0-21swapper/219:30:002
924535993523,8cyclictest925479-21if_eth019:15:012
924533993527,5cyclictest1653-21lldpd23:35:311
924533993525,6cyclictest973528-21phc2sys-jitter00:00:241
924533993522,8cyclictest0-21swapper/121:15:311
924532993529,4cyclictest20850irq/208-8000000.ethernet21:25:230
924532993529,4cyclictest20850irq/208-8000000.ethernet19:35:240
924532993529,4cyclictest20850irq/208-8000000.ethernet19:35:240
924535993427,4cyclictest946039-21grep21:10:292
924535993420,9cyclictest0-21swapper/200:35:282
924535993420,9cyclictest0-21swapper/200:35:282
924535993419,9cyclictest0-21swapper/223:15:302
924535993413,11cyclictest0-21swapper/223:50:012
924533993426,5cyclictest0-21swapper/119:40:011
924533993426,5cyclictest0-21swapper/119:40:011
924533993423,6cyclictest0-21swapper/121:05:231
924533993420,10cyclictest231ktimers/120:50:141
924533993419,8cyclictest0-21swapper/121:35:281
924532993428,4cyclictest0-21swapper/022:01:260
924535993326,3cyclictest0-21swapper/219:55:202
924535993324,4cyclictest0-21swapper/223:00:212
924535993322,8cyclictest1660-21snmpd21:15:222
924533993323,7cyclictest0-21swapper/121:10:291
924533993321,8cyclictest0-21swapper/119:45:201
924533993319,10cyclictest0-21swapper/100:10:001
92453399331,26cyclictest0-21swapper/119:25:241
924533993311,14cyclictest231ktimers/121:20:131
924533993311,14cyclictest231ktimers/121:20:131
924532993325,5cyclictest0-21swapper/020:25:200
92453299332,28cyclictest0-21swapper/022:30:000
924535993224,4cyclictest0-21swapper/223:57:152
924535993224,4cyclictest0-21swapper/223:57:152
924535993219,7cyclictest0-21swapper/222:00:302
924533993221,6cyclictest0-21swapper/119:40:301
924533993221,5cyclictest0-21swapper/121:40:281
924533993220,8cyclictest0-21swapper/120:15:291
92453399321,28cyclictest941213-21/usr/sbin/munin20:45:271
924535993126,3cyclictest167550irq/134-8000000.ethernet-tx221:55:072
924535993124,5cyclictest970862-21/usr/sbin/munin23:40:252
924535993124,4cyclictest966361-21grep23:10:292
924535993124,4cyclictest0-21swapper/219:30:282
924535993123,6cyclictest0-21swapper/219:50:202
924535993120,8cyclictest0-21swapper/222:15:292
924535993119,7cyclictest0-21swapper/221:30:292
924533993123,6cyclictest231ktimers/122:45:131
924533993121,6cyclictest0-21swapper/122:30:291
924533993120,8cyclictest0-21swapper/122:55:121
924533993120,7cyclictest0-21swapper/120:00:271
924533993111,4cyclictest8321systemd-network19:22:191
924535993019,8cyclictest0-21swapper/222:30:292
924535993018,9cyclictest0-21swapper/200:21:312
92453599301,3cyclictest1660-21snmpd21:40:282
92453599301,27cyclictest972022-21kworker/u8:3+events_power_efficient00:01:172
92453599301,24cyclictest0-21swapper/222:45:102
924533993023,5cyclictest953120-21/usr/sbin/munin21:55:241
924533993023,4cyclictest924527-21cyclictest00:25:261
924533993022,5cyclictest958765-21grep22:25:291
924533993022,4cyclictest0-21swapper/119:50:271
924533993018,9cyclictest231ktimers/121:00:121
92453399301,23cyclictest0-21swapper/123:45:571
924535992922,4cyclictest14-21rcu_preempt00:10:172
92453599291,13cyclictest0-21swapper/220:35:022
924533992920,5cyclictest0-21swapper/100:30:281
924533992917,5cyclictest0-21swapper/120:05:201
924535992821,5cyclictest1660-21snmpd20:25:142
924535992813,10cyclictest14-21rcu_preempt21:10:012
924535992812,14cyclictest167550irq/134-8000000.ethernet-tx223:20:462
924535992812,14cyclictest167550irq/134-8000000.ethernet-tx220:54:082
924533992818,6cyclictest0-21swapper/123:00:301
924535992718,7cyclictest311ktimers/200:30:302
924535992716,6cyclictest0-21swapper/200:17:002
924535992616,7cyclictest0-21swapper/220:05:282
924535992613,7cyclictest0-21swapper/220:00:192
924535992514,8cyclictest0-21swapper/220:40:252
924535992512,8cyclictest0-21swapper/219:10:012
924535992315,6cyclictest954917-21dropbear22:05:202
924533992313,6cyclictest0-21swapper/119:10:021
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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