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2025-12-10 - 12:48

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 Dec 10, 2025 00:44:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
106512499736,11cyclictest1086859-21/usr/sbin/munin21:15:200
106512599719,21cyclictest1115762-21/usr/sbin/munin00:05:231
106512599719,21cyclictest1115762-21/usr/sbin/munin00:05:231
1065124996723,4cyclictest0-21swapper/020:00:290
1065124996629,30cyclictest1108683-21grep23:20:300
1065124996629,30cyclictest1108683-21grep23:20:300
106512499662,26cyclictest1065957-21munin-node19:15:020
106512499651,2cyclictest0-21swapper/022:25:010
106512499651,2cyclictest0-21swapper/022:25:010
1065124996424,29cyclictest0-21swapper/019:20:210
106512499631,25cyclictest1104111-21/usr/sbin/munin22:55:290
1065124996224,4cyclictest1112077-21grep23:40:290
1065124996123,28cyclictest0-21swapper/020:30:250
1065124996023,4cyclictest21250irq/208-8000000.ethernet00:20:240
106512499602,24cyclictest1106298-21latency_hist23:10:020
1065124995929,27cyclictest21250irq/208-8000000.ethernet21:05:270
1065124995928,26cyclictest1095954-21munin-plugin-st22:10:000
1065124995928,26cyclictest1095954-21munin-plugin-st22:09:590
1065124995928,24cyclictest0-21swapper/023:30:290
1065124995923,3cyclictest1116941-21phc2sys-jitter00:10:270
1065124995917,5cyclictest0-21swapper/021:50:290
1065124995723,5cyclictest0-21swapper/000:30:200
1065124995722,5cyclictest0-21swapper/020:45:280
1065124995627,24cyclictest0-21swapper/019:30:210
1065124995621,8cyclictest0-21swapper/000:15:260
1065124995617,7cyclictest0-21swapper/023:35:280
106512499561,32cyclictest1-21systemd22:45:160
1065125995441,9cyclictest1085005-21apt-key21:05:001
106512499542,5cyclictest1109532-21users23:25:300
1065125995343,7cyclictest1108722-21munin-plugin-st23:25:001
1065125995343,7cyclictest1108722-21munin-plugin-st23:24:591
1065124995326,23cyclictest21250irq/208-8000000.ethernet22:35:270
1065124995324,4cyclictest168250irq/118-8000000.ethernet-tx000:02:280
1065124995313,9cyclictest0-21swapper/022:10:260
1065125995228,15cyclictest22-21rcuc/123:10:011
1065124995126,21cyclictest21050irq/252-8000000.ethernet23:15:240
1065124995120,6cyclictest0-21swapper/022:00:280
106512499511,24cyclictest0-21swapper/000:05:160
106512499511,24cyclictest0-21swapper/000:05:160
1065125995034,11cyclictest1092568-21kworker/u8:0+events_power_efficient22:30:001
106512499507,6cyclictest0-21swapper/020:30:010
1065124995024,2cyclictest0-21swapper/022:30:210
106512499501,2cyclictest0-21swapper/020:55:010
1065125994934,10cyclictest0-21swapper/120:40:291
1065124994924,4cyclictest21250irq/208-8000000.ethernet22:40:180
1065124994922,7cyclictest1075577-21sshd20:06:470
1065127994840,6cyclictest1067136-21cron19:20:002
1065127994840,5cyclictest1092477-21grep21:45:272
1065127994839,5cyclictest0-21swapper/220:15:332
1065124994822,4cyclictest1092466-21grep21:45:280
106512499481,38cyclictest0-21swapper/023:45:130
1065125994734,8cyclictest0-21swapper/119:25:271
1065124994727,16cyclictest21050irq/252-8000000.ethernet19:10:010
1065124994723,3cyclictest1084926-21latency_hist21:05:010
1065125994631,8cyclictest0-21swapper/121:09:591
1065125994616,27cyclictest231ktimers/122:35:011
106512499468,2cyclictest0-21swapper/021:30:000
1065124994622,6cyclictest131ktimers/020:40:010
1065127994534,7cyclictest1119783-21sh00:30:002
1065127994534,7cyclictest0-21swapper/219:55:282
1065127994534,7cyclictest0-21swapper/219:55:272
1065124994523,5cyclictest1104712-21tune2fs23:00:200
106512499451,2cyclictest0-21swapper/021:40:010
1065125994425,14cyclictest0-21swapper/120:00:311
106512599441,4cyclictest1110396-21apt-get23:35:011
1065127994329,10cyclictest0-21swapper/221:35:012
1065124994332,7cyclictest0-21swapper/019:15:060
1065124994318,4cyclictest741984-1kworker/0:0H+mmc_complete20:45:010
106512599427,26cyclictest0-21swapper/121:15:281
1065125994234,5cyclictest1101801-21grep22:40:281
1065125994231,8cyclictest0-21swapper/120:25:311
1065125994226,10cyclictest0-21swapper/122:10:211
1065125994220,13cyclictest0-21swapper/119:15:021
1065124994234,5cyclictest0-21swapper/022:00:010
1065124994234,4cyclictest0-21swapper/023:50:280
1065124994230,8cyclictest0-21swapper/020:15:010
1065124994230,8cyclictest0-21swapper/020:15:010
106512499421,9cyclictest0-21swapper/000:00:000
1065124994214,3cyclictest1104908-1kworker/0:0H+mmc_complete00:30:010
1065127994128,8cyclictest0-21swapper/223:55:302
106512799411,33cyclictest0-21swapper/222:45:012
1065125994130,8cyclictest0-21swapper/100:35:291
1065125994129,7cyclictest0-21swapper/122:35:311
106512599411,4cyclictest0-21swapper/120:20:011
1065124994115,5cyclictest1084032-21latency_hist21:00:020
106512499411,3cyclictest0-21swapper/021:35:010
1065127994031,6cyclictest1287-21cron00:15:002
1065125994026,8cyclictest0-21swapper/100:15:281
106512599401,31cyclictest1112383-21/usr/sbin/munin23:45:241
106512499402,6cyclictest1070883-21sh19:40:180
106512499402,6cyclictest1070883-21sh19:40:180
106512499401,8cyclictest1103318-21ptp4l22:50:260
1065127993931,4cyclictest168450irq/134-8000000.ethernet-tx221:20:232
1065127993927,8cyclictest0-21swapper/221:00:012
1065127993925,10cyclictest0-21swapper/221:25:252
1065127993924,10cyclictest0-21swapper/220:50:312
106512599391,3cyclictest1079705-21unixbench_multi20:30:281
106512599391,31cyclictest0-21swapper/119:45:211
106512599391,30cyclictest1092276-21phc2sys-jitter21:45:261
1065127993830,4cyclictest168450irq/134-8000000.ethernet-tx221:40:222
1065127993829,7cyclictest1090886-21sendmail21:40:002
1065127993823,12cyclictest311ktimers/222:05:152
1065127993823,12cyclictest311ktimers/222:05:152
1065127993823,11cyclictest0-21swapper/222:15:282
106512799382,29cyclictest0-21swapper/222:20:282
106512799382,29cyclictest0-21swapper/222:20:272
1065127993821,12cyclictest311ktimers/223:15:152
1065125993827,7cyclictest1073790-21grep19:55:281
1065125993827,7cyclictest1073790-21grep19:55:281
1065125993823,10cyclictest0-21swapper/122:05:301
1065125993823,10cyclictest0-21swapper/122:05:301
1065124993829,5cyclictest1097515-21grep22:15:280
106512499381,2cyclictest0-21swapper/020:20:000
1065127993729,4cyclictest168450irq/134-8000000.ethernet-tx220:45:242
1065127993726,6cyclictest0-21swapper/223:10:302
1065127993716,15cyclictest311ktimers/221:15:132
1065127993715,11cyclictest14-21rcu_preempt19:30:122
1065125993730,4cyclictest0-21swapper/121:40:271
1065125993729,4cyclictest0-21swapper/123:00:271
1065125993727,8cyclictest1080658-21munin-plugin-st20:40:001
1065125993726,8cyclictest0-21swapper/122:00:291
1065125993726,7cyclictest0-21swapper/122:50:281
106512599371,33cyclictest1089931-21unixbench_multi21:30:331
106512599371,2cyclictest0-21swapper/123:55:021
106512599371,29cyclictest1083082-21unixbench_multi20:50:311
106512599371,29cyclictest0-21swapper/121:50:231
106512499371,8cyclictest1087915-21ssh21:20:200
1065127993628,5cyclictest168450irq/134-8000000.ethernet-tx223:30:272
1065127993626,4cyclictest0-21swapper/221:55:192
106512599362,7cyclictest231ktimers/121:30:011
1065125993624,6cyclictest0-21swapper/120:10:311
1065125993624,6cyclictest0-21swapper/120:10:311
1065125993621,11cyclictest0-21swapper/121:35:301
1065125993614,10cyclictest1110396-21apt-get23:35:021
106512599361,3cyclictest1113753-21unixbench_multi23:50:291
106512599361,3cyclictest0-21swapper/123:30:001
106512599361,32cyclictest1119676-21unixbench_multi00:25:311
1065127993527,5cyclictest1068841-21munin-plugin-st19:30:012
1065127993525,5cyclictest0-21swapper/219:15:002
1065127993522,8cyclictest0-21swapper/221:05:222
1065127993521,9cyclictest1079450-21kernelversion20:30:232
1065127993517,13cyclictest311ktimers/219:40:112
1065127993517,13cyclictest311ktimers/219:40:112
1065125993528,4cyclictest168350irq/126-8000000.ethernet-tx119:35:161
1065125993528,4cyclictest168350irq/126-8000000.ethernet-tx119:15:061
1065125993526,6cyclictest0-21swapper/122:55:311
1065125993525,7cyclictest0-21swapper/119:30:281
106512599351,2cyclictest0-21swapper/120:25:011
106512499351,32cyclictest0-21swapper/019:51:520
106512499351,2cyclictest0-21swapper/023:15:010
106512499351,29cyclictest0-21swapper/022:25:040
1065127993427,4cyclictest168450irq/134-8000000.ethernet-tx220:40:292
1065127993427,4cyclictest168450irq/134-8000000.ethernet-tx220:10:272
1065127993427,4cyclictest168450irq/134-8000000.ethernet-tx220:10:272
1065127993426,5cyclictest0-21swapper/223:55:002
1065127993423,8cyclictest0-21swapper/221:10:302
1065127993422,8cyclictest0-21swapper/223:10:012
1065127993421,8cyclictest0-21swapper/200:20:302
106512599343,4cyclictest1072951-21unixbench_multi19:50:291
1065125993428,3cyclictest168350irq/126-8000000.ethernet-tx123:15:271
1065125993417,9cyclictest0-21swapper/120:45:281
106512599341,27cyclictest0-21swapper/122:15:231
1065124993428,4cyclictest21250irq/208-8000000.ethernet19:45:170
1065124993424,4cyclictest0-21swapper/020:25:000
106512499341,8cyclictest1070234-21proc_pri19:35:270
1065127993327,4cyclictest0-21swapper/200:35:292
106512799331,4cyclictest1104395-21munin-run23:00:002
106512799331,4cyclictest0-21swapper/223:25:012
106512799331,4cyclictest0-21swapper/223:25:012
1065125993327,4cyclictest14-21rcu_preempt22:00:001
1065125993322,7cyclictest0-21swapper/119:40:281
1065125993322,7cyclictest0-21swapper/119:40:281
1065125993320,7cyclictest1084048-21sendmail21:00:011
1065124993326,4cyclictest21250irq/208-8000000.ethernet19:25:250
1065124993324,5cyclictest1086602-21grep21:10:300
106512499332,28cyclictest1121251-21grep00:35:280
106512499331,4cyclictest0-21swapper/020:00:010
106512499331,4cyclictest0-21swapper/020:00:010
1065127993223,6cyclictest1116351-21grep00:05:332
1065127993223,6cyclictest1116351-21grep00:05:332
1065127993222,5cyclictest0-21swapper/222:10:262
1065125993227,2cyclictest0-21swapper/100:00:281
1065125993225,4cyclictest1111832-21kernelversion23:40:241
1065125993221,7cyclictest0-21swapper/122:45:281
106512599321,4cyclictest0-21swapper/123:15:001
106512799317,9cyclictest1092774-21/usr/sbin/munin21:50:192
1065127993124,4cyclictest1095114-21munin-plugin-st22:05:002
1065127993123,6cyclictest1070498-21dropbear19:36:382
1065127993121,7cyclictest0-21swapper/222:30:312
1065127993121,5cyclictest0-21swapper/220:25:232
1065127993120,8cyclictest1120609-21sshd00:31:002
106512799311,5cyclictest1099034-21phc2sys-jitter22:25:272
106512799311,4cyclictest1103168-21irqstats22:50:232
106512799311,2cyclictest0-21swapper/220:35:252
106512799311,2cyclictest0-21swapper/219:10:012
106512799311,28cyclictest0-21swapper/219:45:222
106512799311,25cyclictest0-21swapper/222:45:112
1065125993124,5cyclictest231ktimers/100:20:271
1065125993124,4cyclictest0-21swapper/122:20:201
1065125993124,4cyclictest0-21swapper/122:20:201
1065125993122,4cyclictest0-21swapper/100:30:291
1065125993121,6cyclictest1086557-21grep21:10:291
1065125993119,7cyclictest0-21swapper/119:20:171
1065127993021,6cyclictest0-21swapper/223:35:192
1065127993020,6cyclictest0-21swapper/220:00:192
1065127993019,7cyclictest0-21swapper/219:25:002
1065125993023,5cyclictest0-21swapper/100:10:181
1065125993021,5cyclictest0-21swapper/120:05:201
1065127992919,6cyclictest1109443-21grep23:25:292
1065127992917,8cyclictest0-21swapper/220:05:292
1065127992916,7cyclictest0-21swapper/221:05:012
1065127992913,11cyclictest0-21swapper/200:00:272
1065125992922,4cyclictest0-21swapper/121:20:201
106512499291,23cyclictest0-21swapper/021:40:020
1065127992822,3cyclictest0-21swapper/220:20:182
1065127992819,5cyclictest0-21swapper/219:50:292
1065127992818,7cyclictest311ktimers/222:35:192
1065127992720,4cyclictest0-21swapper/200:15:232
1065127992718,4cyclictest1112095-21grep23:40:292
1065125992722,3cyclictest1065128-21latency_hist19:10:011
1065127992619,4cyclictest0-21swapper/223:05:002
1065127992313,6cyclictest0-21swapper/223:45:172
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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