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2026-04-27 - 08:51

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 Mon Apr 27, 2026 00:44:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4129237999991,5cyclictest0-21swapper/019:30:010
4129237999991,5cyclictest0-21swapper/019:30:000
412923799781,43cyclictest0-21swapper/022:15:010
4129240997567,5cyclictest22-21rcuc/120:25:021
4129241997467,4cyclictest311ktimers/223:05:012
4129237995444,7cyclictest20850irq/208-8000000.ethernet19:10:010
4129237995338,10cyclictest0-21swapper/023:15:000
4129241995037,8cyclictest0-21swapper/219:49:592
4129237995039,8cyclictest4160061-21munin-plugin-st22:10:000
412923799494,42cyclictest0-21swapper/020:05:270
4129240994832,10cyclictest0-21swapper/120:35:281
412924099482,12cyclictest4162764-21rm22:25:011
4129237994823,22cyclictest0-21swapper/022:25:010
412923799481,3cyclictest0-21swapper/023:05:120
4129240994733,10cyclictest4131172-21munin-plugin-st19:20:001
4129241994630,9cyclictest0-21swapper/223:55:292
4129241994629,9cyclictest0-21swapper/223:25:002
412924099461,2cyclictest0-21swapper/120:20:011
4129237994634,8cyclictest4141400-21sendmail20:20:000
4129241994534,7cyclictest4144811-21grep20:35:282
4129240994535,6cyclictest14-21rcu_preempt19:55:281
4129240994533,7cyclictest4166888-21unixbench_multi22:45:291
4129240994533,7cyclictest0-21swapper/120:55:311
4129237994539,4cyclictest167350irq/118-8000000.ethernet-tx023:55:130
4129237994539,3cyclictest167350irq/118-8000000.ethernet-tx022:15:140
4129237994538,4cyclictest0-21swapper/000:10:190
4129237994538,4cyclictest0-21swapper/000:10:190
4129237994536,4cyclictest4154985-21run-parts21:39:590
4129237994534,8cyclictest4168770-21sendmail23:00:000
4129241994430,8cyclictest0-21swapper/220:05:282
4129240994435,5cyclictest4170457-21munin-plugin-st23:10:001
4129240994430,8cyclictest0-21swapper/122:35:291
4129237994433,8cyclictest4154144-21munin-plugin-st21:35:000
4129237994432,7cyclictest0-21swapper/020:55:300
4129241994335,4cyclictest311ktimers/221:50:132
4129241994335,4cyclictest311ktimers/221:50:122
4129241994333,7cyclictest0-21swapper/221:05:292
4129241994330,6cyclictest0-21swapper/219:15:002
4129241994324,11cyclictest0-21swapper/200:00:302
4129240994333,6cyclictest4154060-21grep21:30:291
4129240994325,13cyclictest231ktimers/121:55:121
412923799432,8cyclictest0-21swapper/022:00:010
4129241994233,4cyclictest14-21rcu_preempt20:30:202
4129241994233,4cyclictest14-21rcu_preempt20:30:202
4129241994229,7cyclictest4158253-21grep21:55:292
4129240994232,6cyclictest4176422-21grep23:40:291
4129237994235,4cyclictest4174764-21munin-plugin-st23:35:000
4129237994235,4cyclictest0-21swapper/020:25:260
412923799423,37cyclictest0-21swapper/022:26:320
4129237994231,8cyclictest15-21rcuc/021:00:160
4129237994231,7cyclictest0-21swapper/023:00:280
412923799422,5cyclictest4185260-21diskstats00:35:190
412923799421,5cyclictest4130413-21users19:15:050
4129241994131,7cyclictest311ktimers/221:40:122
4129241994129,7cyclictest0-21swapper/221:45:272
4129241994129,4cyclictest0-21swapper/221:25:282
4129241994127,10cyclictest0-21swapper/221:20:292
4129240994133,4cyclictest14-21rcu_preempt20:00:181
4129240994131,7cyclictest0-21swapper/122:40:291
4129240994131,6cyclictest0-21swapper/121:30:011
4129240994129,8cyclictest0-21swapper/120:30:291
4129240994129,8cyclictest0-21swapper/120:30:291
4129240994126,9cyclictest0-21swapper/119:10:011
4129240994126,10cyclictest0-21swapper/123:20:301
4129240994124,8cyclictest0-21swapper/123:20:001
412923799413,5cyclictest0-21swapper/021:10:010
4129237994130,8cyclictest0-21swapper/022:50:000
4129237994129,8cyclictest0-21swapper/000:25:310
4129237994128,9cyclictest0-21swapper/022:35:190
4129237994127,10cyclictest0-21swapper/019:40:300
412923799412,4cyclictest4140209-21memory20:10:240
412923799412,3cyclictest4138385-21ssh20:00:200
412923799411,5cyclictest4133793-21/usr/sbin/munin19:34:590
412923799411,37cyclictest0-21swapper/023:20:240
412923799411,11cyclictest0-21swapper/000:25:010
4129241994032,5cyclictest4178347-21cat23:55:012
4129241994028,8cyclictest30-21rcuc/220:40:222
4129241994028,5cyclictest0-21swapper/200:20:292
4129241994027,8cyclictest4171237-21grep23:10:292
4129241994024,10cyclictest0-21swapper/219:35:282
4129241994024,10cyclictest0-21swapper/200:05:202
4129241994012,13cyclictest4140745-21/usr/sbin/munin20:15:192
4129240994029,8cyclictest0-21swapper/120:40:281
4129240994027,9cyclictest0-21swapper/100:00:311
4129240994025,9cyclictest0-21swapper/123:10:291
4129240994024,8cyclictest0-21swapper/121:50:301
4129240994024,8cyclictest0-21swapper/121:50:301
4129240994023,9cyclictest0-21swapper/100:05:281
4129237994033,4cyclictest4175603-21sendmail23:40:000
4129237994031,6cyclictest4164144-21tail22:30:260
4129237994030,7cyclictest0-21swapper/000:05:280
412923799402,32cyclictest4168005-21latency_hist22:55:010
412923799401,37cyclictest0-21swapper/021:40:160
4129241993930,4cyclictest0-21swapper/220:20:302
4129241993930,4cyclictest0-21swapper/219:40:272
4129241993929,6cyclictest311ktimers/223:15:252
4129241993929,6cyclictest0-21swapper/220:45:282
4129241993928,7cyclictest311ktimers/220:15:012
4129241993922,7cyclictest0-21swapper/223:35:262
4129240993931,4cyclictest4151607-21sendmail21:20:001
4129240993930,4cyclictest0-21swapper/100:15:231
4129240993927,8cyclictest0-21swapper/121:10:281
4129240993927,8cyclictest0-21swapper/121:10:281
4129240993926,9cyclictest0-21swapper/119:50:001
4129240993926,8cyclictest0-21swapper/119:30:301
4129237993931,5cyclictest0-21swapper/023:15:270
4129237993929,7cyclictest0-21swapper/020:50:300
4129237993928,7cyclictest0-21swapper/020:30:280
4129237993928,7cyclictest0-21swapper/020:30:280
4129241993827,7cyclictest4161646-21grep22:15:282
4129241993824,9cyclictest0-21swapper/222:50:292
4129241993823,9cyclictest0-21swapper/219:15:292
4129241993823,8cyclictest311ktimers/222:20:192
4129240993828,6cyclictest0-21swapper/100:35:291
4129240993827,8cyclictest0-21swapper/119:15:011
412924099382,4cyclictest0-21swapper/120:50:001
412924099382,30cyclictest0-21swapper/123:35:171
4129240993821,12cyclictest231ktimers/123:25:141
4129240993821,12cyclictest231ktimers/123:25:141
4129237993830,4cyclictest0-21swapper/020:45:280
4129237993821,15cyclictest0-21swapper/022:00:170
412923799381,4cyclictest4141667-21df20:20:180
412923799381,35cyclictest0-21swapper/023:25:130
412923799381,35cyclictest0-21swapper/023:25:130
412923799381,35cyclictest0-21swapper/021:45:130
412923799381,35cyclictest0-21swapper/021:20:260
412923799381,35cyclictest0-21swapper/020:43:510
4129241993729,4cyclictest30-21rcuc/200:25:232
4129241993728,7cyclictest311ktimers/222:25:072
4129241993728,5cyclictest4166035-21unixbench_multi22:40:292
4129241993726,7cyclictest0-21swapper/221:15:302
4129241993725,8cyclictest0-21swapper/222:10:292
4129241993724,9cyclictest0-21swapper/200:40:012
4129241993723,7cyclictest0-21swapper/222:30:282
4129241993721,10cyclictest0-21swapper/220:55:312
4129240993727,6cyclictest0-21swapper/119:35:291
4129240993725,8cyclictest0-21swapper/122:00:301
4129240993725,8cyclictest0-21swapper/120:10:001
4129240993724,8cyclictest0-21swapper/100:25:301
4129240993721,9cyclictest0-21swapper/122:15:281
4129240993721,8cyclictest0-21swapper/123:30:281
4129237993729,5cyclictest131ktimers/019:10:260
4129237993729,4cyclictest0-21swapper/021:55:000
4129237993729,4cyclictest0-21swapper/021:55:000
4129237993729,4cyclictest0-21swapper/000:15:300
412923799371,3cyclictest0-21swapper/019:55:000
412923799371,34cyclictest0-21swapper/021:17:000
412923799371,34cyclictest0-21swapper/021:14:400
412923799371,34cyclictest0-21swapper/021:14:400
412923799371,34cyclictest0-21swapper/020:40:000
412923799371,34cyclictest0-21swapper/019:55:160
4129241993625,8cyclictest4137924-21grep19:55:292
4129241993624,7cyclictest0-21swapper/223:45:202
4129241993623,7cyclictest4159957-21grep22:05:292
4129241993622,6cyclictest0-21swapper/222:00:222
4129241993620,11cyclictest0-21swapper/219:25:212
4129241993620,11cyclictest0-21swapper/219:25:212
412924099364,15cyclictest22-21rcuc/100:00:011
4129240993628,5cyclictest0-21swapper/122:05:291
4129240993627,5cyclictest0-21swapper/123:55:011
4129240993627,5cyclictest0-21swapper/119:25:001
4129240993624,8cyclictest0-21swapper/123:45:281
4129240993624,8cyclictest0-21swapper/121:00:291
4129237993629,4cyclictest0-21swapper/000:30:150
4129237993626,6cyclictest0-21swapper/021:25:290
4129241993526,5cyclictest0-21swapper/220:50:302
4129241993525,7cyclictest0-21swapper/223:30:282
4129241993522,9cyclictest0-21swapper/223:00:012
412924199351,29cyclictest4176398-21sed23:40:292
4129240993522,9cyclictest0-21swapper/100:10:251
4129240993522,9cyclictest0-21swapper/100:10:251
412923799353,4cyclictest4131924-21wc19:20:290
4129237993529,4cyclictest20850irq/208-8000000.ethernet00:00:200
4129237993528,5cyclictest131ktimers/022:40:230
412924199346,21cyclictest4143093-21grep20:25:302
412924199345,19cyclictest4182337-21grep00:15:302
4129241993427,4cyclictest14-21rcu_preempt00:15:012
4129241993424,8cyclictest311ktimers/222:35:252
412924199342,22cyclictest0-21swapper/223:30:012
412924199342,22cyclictest0-21swapper/223:30:012
4129241993421,8cyclictest311ktimers/221:00:162
4129241993417,8cyclictest0-21swapper/219:20:272
4129240993424,6cyclictest0-21swapper/121:05:261
4129240993423,7cyclictest0-21swapper/123:00:281
4129240993423,7cyclictest0-21swapper/121:40:281
4129240993423,7cyclictest0-21swapper/100:30:301
412924099341,27cyclictest0-21swapper/122:25:251
4129237993429,2cyclictest0-21swapper/019:50:010
4129237993427,4cyclictest4134625-21cron19:40:000
4129237993424,7cyclictest131ktimers/023:50:240
412924199336,19cyclictest4181527-21sed00:10:282
4129241993327,4cyclictest311ktimers/220:00:282
4129241993327,4cyclictest30-21rcuc/222:45:262
4129241993323,8cyclictest311ktimers/221:30:272
4129240993326,4cyclictest4135484-21cron19:45:011
4129240993324,6cyclictest0-21swapper/121:20:291
4129240993311,5cyclictest8321systemd-network22:50:381
4129240993310,14cyclictest24-21ksoftirqd/119:25:011
4129240993310,14cyclictest24-21ksoftirqd/119:25:011
4129237993327,4cyclictest20850irq/208-8000000.ethernet23:45:220
4129237993318,13cyclictest0-21swapper/023:42:380
4129241993222,7cyclictest4170403-21grep23:05:302
4129241993222,6cyclictest0-21swapper/219:30:282
4129241993221,7cyclictest0-21swapper/200:35:012
4129240993223,5cyclictest0-21swapper/120:10:171
412924099322,2cyclictest0-21swapper/120:55:011
4129240993219,10cyclictest231ktimers/122:30:111
412924199314,18cyclictest4137052-21unixbench_multi19:50:282
4129241993121,7cyclictest4154871-21grep21:35:282
4129240993124,4cyclictest205-21ptp000:20:271
4129240993116,11cyclictest231ktimers/122:55:111
4129240993019,7cyclictest22-21rcuc/122:10:161
412924199294,17cyclictest4150719-21head21:10:282
412924199294,17cyclictest4150719-21head21:10:272
4129240992919,7cyclictest0-21swapper/121:45:281
4129240992918,7cyclictest0-21swapper/121:35:291
4129240992825,2cyclictest0-21swapper/120:25:211
412924099281,25cyclictest0-21swapper/119:50:281
4129241992716,5cyclictest311ktimers/219:10:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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