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2026-06-10 - 03:37

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 Wed Jun 10, 2026 00:44:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1018872996210,18cyclictest1046697-21/usr/sbin/munin21:50:181
1018868996154,4cyclictest131ktimers/021:10:020
1018868995930,26cyclictest20850irq/208-8000000.ethernet19:55:210
1018868995547,5cyclictest1047340-21munin-plugin-st21:54:590
1018868995245,4cyclictest20650irq/252-8000000.ethernet20:45:270
1018868995243,6cyclictest1029216-21grep20:05:280
1018875995139,7cyclictest1073502-21unixbench_multi00:25:292
1018872995135,11cyclictest1034490-21sendmail20:40:001
101886899514,43cyclictest15-21rcuc/023:00:010
1018868995141,7cyclictest0-21swapper/023:30:130
101886899502,12cyclictest1050600-21tail22:10:280
101886899502,12cyclictest1050600-21tail22:10:280
1018875994942,4cyclictest1071914-21sendmail00:20:002
1018875994835,8cyclictest0-21swapper/219:50:282
1018872994813,19cyclictest1047536-21/usr/sbin/munin21:55:201
101886899485,15cyclictest15-21rcuc/021:20:010
1018868994834,10cyclictest0-21swapper/023:05:010
1018868994740,4cyclictest20650irq/252-8000000.ethernet20:30:300
1018868994738,5cyclictest14-21rcu_preempt20:20:180
1018868994738,5cyclictest1026660-21unixbench_singl19:50:290
1018868994738,4cyclictest20650irq/252-8000000.ethernet20:20:000
1018868994712,10cyclictest12-21ksoftirqd/022:25:020
101887599467,34cyclictest32-21ksoftirqd/223:00:012
1018875994633,8cyclictest1057476-21munin-plugin-st22:55:002
1018872994636,6cyclictest1061462-21ptp4l23:15:291
1018872994636,6cyclictest1061462-21ptp4l23:15:291
1018872994628,12cyclictest22-21rcuc/123:10:021
1018868994639,4cyclictest1021654-21munin-plugin-st19:25:010
1018868994637,6cyclictest0-21swapper/022:45:200
1018875994534,6cyclictest0-21swapper/223:45:292
1018875994525,11cyclictest1067513-21grep23:50:292
1018875994436,5cyclictest1020684-21grep19:15:282
1018872994435,5cyclictest0-21swapper/122:30:011
1018868994437,4cyclictest167350irq/118-8000000.ethernet-tx019:40:240
1018868994435,5cyclictest1075217-21unixbench_multi00:35:280
1018868994435,5cyclictest1019618-21grep19:10:280
1018868994434,8cyclictest1020686-21unixbench_multi19:15:290
1018875994335,4cyclictest1-21systemd23:10:012
1018875994332,7cyclictest0-21swapper/221:50:012
1018875994329,10cyclictest0-21swapper/221:50:272
101887299435,30cyclictest0-21swapper/119:15:261
1018868994337,4cyclictest167350irq/118-8000000.ethernet-tx019:29:590
1018868994336,4cyclictest167350irq/118-8000000.ethernet-tx023:15:250
1018868994336,4cyclictest167350irq/118-8000000.ethernet-tx023:15:240
1018868994332,8cyclictest0-21swapper/020:55:000
101886899432,4cyclictest1032232-21df_inode20:25:180
101886899432,4cyclictest1032232-21df_inode20:25:170
101886899432,37cyclictest1045769-21/usr/sbin/munin21:45:110
1018868994311,30cyclictest12-21ksoftirqd/020:35:200
1018875994231,7cyclictest0-21swapper/220:25:012
101887299426,29cyclictest1036963-21unixbench_singl20:50:281
1018872994233,5cyclictest0-21swapper/122:05:001
1018872994230,8cyclictest0-21swapper/120:30:311
1018868994234,4cyclictest20650irq/252-8000000.ethernet22:50:250
1018868994227,9cyclictest0-21swapper/023:50:290
1018868994222,18cyclictest1060000-21kworker/u8:1+events_power_efficient23:40:320
101886899421,36cyclictest0-21swapper/022:45:010
1018875994133,4cyclictest14-21rcu_preempt23:55:302
1018875994127,10cyclictest0-21swapper/219:15:012
1018872994132,6cyclictest0-21swapper/123:00:271
101886899419,5cyclictest0-21swapper/022:00:260
1018868994135,3cyclictest0-21swapper/000:25:290
1018868994133,4cyclictest0-21swapper/000:00:300
1018868994133,4cyclictest0-21swapper/000:00:290
1018868994132,5cyclictest14-21rcu_preempt22:30:280
1018868994130,8cyclictest0-21swapper/021:05:290
1018868994130,8cyclictest0-21swapper/021:05:290
1018868994130,5cyclictest0-21swapper/021:30:340
1018868994129,9cyclictest0-21swapper/000:15:350
1018868994126,9cyclictest0-21swapper/023:10:020
1018875994028,8cyclictest0-21swapper/200:05:332
1018875994026,9cyclictest0-21swapper/223:29:592
1018875994026,9cyclictest0-21swapper/222:35:262
1018875994026,9cyclictest0-21swapper/222:35:262
1018875994024,8cyclictest0-21swapper/220:55:292
1018875994023,9cyclictest0-21swapper/222:10:262
1018875994023,9cyclictest0-21swapper/222:10:262
1018875994023,12cyclictest311ktimers/219:45:122
1018872994031,5cyclictest1032808-21munin-plugin-st20:30:011
1018872994031,5cyclictest1032808-21munin-plugin-st20:30:011
1018872994023,9cyclictest0-21swapper/120:45:261
1018868994030,5cyclictest0-21swapper/019:35:270
101886899401,36cyclictest1066395-21kernelversion23:45:240
1018875993928,7cyclictest0-21swapper/221:20:202
101887599392,30cyclictest1027772-21/usr/sbin/munin20:00:212
101887299393,15cyclictest22-21rcuc/121:50:011
1018872993927,7cyclictest0-21swapper/100:05:331
1018872993924,10cyclictest0-21swapper/119:15:021
101887299391,31cyclictest0-21swapper/119:30:201
1018868993932,4cyclictest0-21swapper/000:05:240
1018868993931,5cyclictest1062469-21grep23:20:300
1018868993929,7cyclictest1035284-21grep20:40:290
101886899392,3cyclictest1063047-21meminfo23:25:250
1018875993829,5cyclictest0-21swapper/221:15:322
1018875993827,7cyclictest1039482-21grep21:05:302
1018875993827,7cyclictest1039482-21grep21:05:302
1018875993827,7cyclictest1036151-21grep20:45:282
1018875993825,9cyclictest0-21swapper/219:20:302
101887299384,4cyclictest1022138-21kernelversion19:25:221
1018872993830,5cyclictest1025032-21munin-run19:45:001
1018872993829,6cyclictest0-21swapper/120:20:291
1018872993829,5cyclictest0-21swapper/122:35:261
1018872993829,5cyclictest0-21swapper/122:35:261
1018872993815,17cyclictest0-21swapper/121:04:591
101886899387,20cyclictest15-21rcuc/021:30:010
1018868993831,4cyclictest20650irq/252-8000000.ethernet22:20:260
1018868993831,4cyclictest20650irq/252-8000000.ethernet19:45:250
101886899381,35cyclictest0-21swapper/023:55:290
1018875993728,5cyclictest1072717-21grep00:20:292
1018875993727,7cyclictest0-21swapper/221:40:292
1018875993726,7cyclictest0-21swapper/222:20:002
1018875993723,10cyclictest0-21swapper/223:40:002
1018875993722,9cyclictest0-21swapper/222:05:202
1018872993727,5cyclictest0-21swapper/120:55:281
1018868993730,4cyclictest20650irq/252-8000000.ethernet22:35:230
1018868993730,4cyclictest20650irq/252-8000000.ethernet22:35:220
1018868993729,5cyclictest20850irq/208-8000000.ethernet20:05:010
1018868993729,5cyclictest0-21swapper/020:55:180
101886899371,34cyclictest0-21swapper/019:30:130
1018875993626,7cyclictest0-21swapper/222:30:292
1018875993625,7cyclictest0-21swapper/222:20:302
1018872993623,8cyclictest0-21swapper/122:10:271
1018872993623,8cyclictest0-21swapper/122:10:271
101887299361,5cyclictest1041180-21unixbench_singl21:15:321
1018868993631,3cyclictest1051334-21ptp4l22:15:260
1018868993630,4cyclictest0-21swapper/021:20:170
1018868993630,4cyclictest0-21swapper/021:00:160
1018868993629,4cyclictest20650irq/252-8000000.ethernet20:10:290
1018868993629,4cyclictest20650irq/252-8000000.ethernet00:30:170
1018868993627,4cyclictest0-21swapper/021:35:270
1018868993625,8cyclictest0-21swapper/000:10:150
1018875993526,6cyclictest0-21swapper/223:00:292
1018875993523,9cyclictest1069373-21sshd00:02:272
1018875993523,9cyclictest1069373-21sshd00:02:272
1018872993530,2cyclictest0-21swapper/100:35:281
1018872993528,4cyclictest167450irq/126-8000000.ethernet-tx120:20:001
1018872993523,8cyclictest0-21swapper/122:35:001
101887299351,27cyclictest0-21swapper/122:55:241
1018868993529,3cyclictest20650irq/252-8000000.ethernet21:40:260
101886899351,32cyclictest0-21swapper/023:35:160
1018875993426,4cyclictest0-21swapper/221:55:302
1018875993425,5cyclictest0-21swapper/220:20:002
1018875993422,8cyclictest0-21swapper/220:40:282
1018872993427,4cyclictest167450irq/126-8000000.ethernet-tx121:10:271
1018872993426,6cyclictest1021375-21proc_pri19:20:261
1018872993426,4cyclictest167450irq/126-8000000.ethernet-tx100:30:281
101887299341,27cyclictest1043142-21/usr/sbin/munin21:30:351
101887299341,27cyclictest0-21swapper/123:40:251
1018868993428,3cyclictest20850irq/208-8000000.ethernet00:20:250
1018868993428,3cyclictest20650irq/252-8000000.ethernet23:10:170
1018868993426,4cyclictest20850irq/208-8000000.ethernet22:00:000
1018875993321,7cyclictest1070983-21unixbench_multi00:10:272
1018875993320,9cyclictest0-21swapper/219:40:282
1018875993320,10cyclictest0-21swapper/220:50:262
101887299337,15cyclictest1071265-21/usr/sbin/munin00:15:201
1018872993325,5cyclictest0-21swapper/121:20:221
1018872993324,4cyclictest0-21swapper/122:50:191
101887299331,30cyclictest1029448-21/usr/sbin/munin20:10:171
1018868993326,4cyclictest0-21swapper/022:05:260
101887599323,20cyclictest1052613-21/usr/sbin/munin22:25:182
1018875993225,4cyclictest0-21swapper/220:39:592
1018875993224,4cyclictest0-21swapper/221:35:212
1018875993223,5cyclictest0-21swapper/220:10:302
1018875993222,6cyclictest0-21swapper/222:40:302
1018875993221,8cyclictest0-21swapper/223:40:312
1018875993217,8cyclictest1055993-21/usr/sbin/munin22:45:182
101887299327,17cyclictest22-21rcuc/120:05:011
1018872993225,4cyclictest167450irq/126-8000000.ethernet-tx123:30:281
1018872993223,6cyclictest1660-21snmpd22:20:261
1018872993223,5cyclictest0-21swapper/122:45:001
101887299322,26cyclictest1039277-21/usr/sbin/munin21:05:281
101887299322,26cyclictest1039277-21/usr/sbin/munin21:05:281
1018872993216,9cyclictest0-21swapper/122:05:301
1018875993127,2cyclictest0-21swapper/200:40:012
1018875993123,6cyclictest1061908-21/usr/sbin/munin23:20:302
1018875993123,5cyclictest0-21swapper/219:35:312
1018875993121,6cyclictest1040386-21kworker/u8:4-ext4-rsv-conversion21:15:012
1018875993121,5cyclictest0-21swapper/221:30:302
1018875993119,8cyclictest0-21swapper/220:05:272
1018875993114,14cyclictest167550irq/134-8000000.ethernet-tx200:31:052
101887299317,15cyclictest1026915-21/usr/sbin/munin19:55:181
101887299314,19cyclictest1066961-21/usr/sbin/munin23:50:191
1018872993124,5cyclictest1034705-21/usr/sbin/munin20:40:301
1018872993124,4cyclictest0-21swapper/122:15:271
1018872993123,5cyclictest14-21rcu_preempt21:25:121
1018872993123,4cyclictest0-21swapper/123:25:281
1018875993022,4cyclictest0-21swapper/223:10:282
1018875993022,4cyclictest0-21swapper/221:00:262
1018875993017,10cyclictest1022470-21sshd19:26:282
101887299304,18cyclictest22-21rcuc/121:45:001
1018872993024,4cyclictest1072968-21/usr/sbin/munin00:25:181
101887299302,20cyclictest0-21swapper/121:40:001
1018872993021,7cyclictest1071057-21sshd00:14:271
1018872993021,5cyclictest0-21swapper/123:45:281
1018872993016,9cyclictest0-21swapper/100:20:291
1018872993013,6cyclictest0-21swapper/100:00:311
1018872993013,6cyclictest0-21swapper/100:00:311
101886899302,4cyclictest0-21swapper/019:10:010
1018875992920,7cyclictest0-21swapper/223:30:182
1018875992918,8cyclictest0-21swapper/222:00:292
1018875992918,6cyclictest1061872-21latency_hist23:20:022
1018875992918,6cyclictest1061872-21latency_hist23:20:022
1018875992917,6cyclictest1031877-21latency_hist20:25:012
1018875992917,6cyclictest1031877-21latency_hist20:25:012
101887599291,26cyclictest0-21swapper/219:55:152
1018872992921,4cyclictest0-21swapper/123:05:261
1018872992918,8cyclictest0-21swapper/123:35:211
1018872992918,6cyclictest0-21swapper/119:35:211
1018872992917,8cyclictest0-21swapper/119:50:261
1018875992820,4cyclictest0-21swapper/221:25:262
101887599281,25cyclictest0-21swapper/220:30:192
1018872992822,3cyclictest0-21swapper/120:05:221
1018872992818,5cyclictest0-21swapper/123:20:301
1018875992720,3cyclictest0-21swapper/219:35:012
1018872992716,8cyclictest231ktimers/119:45:121
101887299271,24cyclictest0-21swapper/123:57:101
1018872992515,7cyclictest1056637-21munin-plugin-st22:50:001
101887299249,9cyclictest0-21swapper/119:10:011
1018875992318,2cyclictest0-21swapper/219:10:002
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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