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2026-05-24 - 16:26

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 Sun May 24, 2026 12:44:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
323695299962,23cyclictest3243108-21kworker/u8:4+events_power_efficient07:50:000
323695299821,65cyclictest0-21swapper/009:30:110
323695299821,65cyclictest0-21swapper/009:30:110
3236952997766,5cyclictest0-21swapper/010:05:140
323695299761,2cyclictest0-21swapper/010:50:010
323695299706,8cyclictest0-21swapper/008:55:020
3236952997032,35cyclictest20650irq/252-8000000.ethernet11:10:280
3236952996932,33cyclictest20650irq/252-8000000.ethernet10:55:260
3236952996846,17cyclictest167350irq/118-8000000.ethernet-tx008:40:280
3236952996831,33cyclictest20650irq/252-8000000.ethernet09:50:210
3236952996723,32cyclictest131ktimers/012:20:140
323695299669,18cyclictest0-21swapper/012:30:010
3236952996630,31cyclictest0-21swapper/007:55:130
323695299652,6cyclictest3238305-21df_inode07:15:160
3236952996435,26cyclictest20650irq/252-8000000.ethernet07:20:220
3236952996428,31cyclictest3284845-21apt-get11:50:020
3236952996428,31cyclictest0-21swapper/010:10:250
3236952996428,31cyclictest0-21swapper/010:10:250
3236952996331,27cyclictest20650irq/252-8000000.ethernet08:55:160
3236952996327,31cyclictest0-21swapper/007:30:280
3236952996231,28cyclictest20650irq/252-8000000.ethernet09:15:170
3236952996231,28cyclictest20650irq/252-8000000.ethernet09:15:170
3236952996224,35cyclictest3261098-21users09:25:300
3236952996137,20cyclictest167350irq/118-8000000.ethernet-tx009:45:140
3236952996124,33cyclictest0-21swapper/011:05:300
3236952996122,33cyclictest0-21swapper/010:15:260
3236952996030,25cyclictest3254052-21grep08:45:270
323695299601,4cyclictest3240547-21unixbench_singl07:25:290
3236952995831,23cyclictest20650irq/252-8000000.ethernet12:00:240
3236952995828,21cyclictest20650irq/252-8000000.ethernet07:50:150
3236952995826,28cyclictest3266015-21mailstats09:55:290
3236952995825,30cyclictest20850irq/208-8000000.ethernet08:20:220
3236952995824,29cyclictest3283438-21df_inode11:40:170
3236952995823,32cyclictest3266789-21/usr/sbin/munin10:00:260
3236956995650,4cyclictest311ktimers/212:05:012
3236952995636,15cyclictest20650irq/252-8000000.ethernet10:30:250
3236952995617,35cyclictest0-21swapper/009:35:290
3236952995525,26cyclictest3273760-21users10:40:290
3236952995521,30cyclictest3270688-21entropy10:25:190
323695299551,9cyclictest20850irq/208-8000000.ethernet09:20:130
323695299551,4cyclictest3276676-21df_inode11:00:190
323695299551,4cyclictest0-21swapper/010:20:290
3236954995441,7cyclictest0-21swapper/110:25:171
3236954995419,13cyclictest22-21rcuc/107:55:011
323695299548,3cyclictest250-21jbd2/mmcblk1p2-808:40:000
3236952995433,17cyclictest20650irq/252-8000000.ethernet07:40:180
3236952995430,21cyclictest20650irq/252-8000000.ethernet11:35:160
3236952995430,20cyclictest20650irq/252-8000000.ethernet08:05:250
3236952995411,4cyclictest0-21swapper/012:15:130
3236956995341,9cyclictest1283-21cron10:40:002
3236952995345,4cyclictest167350irq/118-8000000.ethernet-tx012:10:310
3236952995345,4cyclictest167350irq/118-8000000.ethernet-tx012:10:310
3236952995333,16cyclictest20650irq/252-8000000.ethernet08:30:160
3236952995327,23cyclictest0-21swapper/012:10:000
323695299531,11cyclictest3285700-21/usr/sbin/munin11:50:280
3236952995231,18cyclictest20650irq/252-8000000.ethernet11:20:170
3236952995230,19cyclictest20650irq/252-8000000.ethernet09:10:250
3236956995118,20cyclictest30-21rcuc/211:05:012
3236954995134,11cyclictest231ktimers/111:35:171
323695299514,6cyclictest0-21swapper/011:25:290
3236952995127,21cyclictest0-21swapper/007:35:280
323695299512,6cyclictest3281773-21cut11:30:190
323695299512,46cyclictest0-21swapper/010:35:120
3236952995116,30cyclictest0-21swapper/008:05:010
3236952995114,34cyclictest3237757-21/usr/sbin/munin07:15:010
3236952995114,34cyclictest3237757-21/usr/sbin/munin07:15:000
323695299511,10cyclictest3248356-21grep08:15:010
323695299507,39cyclictest0-21swapper/012:35:200
3236952995032,15cyclictest20850irq/208-8000000.ethernet11:55:310
3236952995032,15cyclictest20850irq/208-8000000.ethernet11:55:310
3236952995016,31cyclictest131ktimers/009:05:200
323695299501,4cyclictest3249971-21apt-get08:25:050
3236952995013,32cyclictest0-21swapper/011:15:280
3236954994938,6cyclictest3256043-21apt09:00:001
3236954994917,10cyclictest24-21ksoftirqd/111:45:011
3236952994941,4cyclictest167350irq/118-8000000.ethernet-tx009:40:180
3236952994931,14cyclictest20650irq/252-8000000.ethernet12:35:010
323695299491,3cyclictest0-21swapper/009:00:270
3236956994838,7cyclictest900-21dropbear09:50:012
3236956994832,9cyclictest0-21swapper/212:00:002
3236956994832,9cyclictest0-21swapper/212:00:002
3236956994832,8cyclictest3265224-21unixbench_multi09:50:282
323695299482,4cyclictest3248670-21perl08:15:230
3236954994734,9cyclictest0-21swapper/109:05:281
323695299471,8cyclictest3275031-21/usr/sbin/munin10:50:220
323695699464,31cyclictest30-21rcuc/209:35:192
3236954994627,9cyclictest0-21swapper/108:00:291
3236956994532,7cyclictest3244806-21munin-plugin-st07:55:012
3236954994536,4cyclictest0-21swapper/111:30:281
3236954994533,8cyclictest0-21swapper/109:20:011
3236954994533,8cyclictest0-21swapper/109:20:011
3236954994533,7cyclictest0-21swapper/109:50:171
3236956994435,6cyclictest3284786-21grep11:45:292
3236954994429,6cyclictest231ktimers/110:45:201
323695299444,9cyclictest0-21swapper/007:10:000
3236956994332,7cyclictest0-21swapper/210:15:282
3236956994328,10cyclictest0-21swapper/210:25:262
3236956994312,25cyclictest3267477-21if_eth110:05:232
3236954994332,8cyclictest231ktimers/109:30:011
3236954994329,9cyclictest3273869-21latency_hist10:45:021
3236956994227,10cyclictest0-21swapper/209:30:262
3236956994227,10cyclictest0-21swapper/209:30:262
3236954994233,4cyclictest0-21swapper/107:35:271
3236954994232,6cyclictest3252583-21cat08:40:011
3236956994132,5cyclictest274-21systemd-journal11:20:002
3236956994128,8cyclictest0-21swapper/212:00:302
3236956994127,9cyclictest3289886-21grep12:15:272
3236956994126,10cyclictest0-21swapper/211:35:262
3236956994120,16cyclictest311ktimers/208:30:122
3236956994120,15cyclictest311ktimers/207:55:142
323695499419,19cyclictest24-21ksoftirqd/108:40:021
3236954994133,4cyclictest3292428-21unixbench_multi12:30:271
3236954994125,7cyclictest0-21swapper/110:05:221
3236954994119,12cyclictest231ktimers/107:25:011
3236954994111,24cyclictest0-21swapper/111:00:201
3236956994031,5cyclictest3267029-21munin-plugin-st10:05:012
3236956994024,11cyclictest311ktimers/212:30:122
3236956994022,13cyclictest311ktimers/212:10:142
3236956994022,13cyclictest311ktimers/212:10:142
323695699401,15cyclictest30-21rcuc/207:10:012
323695499407,6cyclictest24-21ksoftirqd/108:55:021
3236954994031,5cyclictest231ktimers/110:20:251
3236954994023,9cyclictest0-21swapper/108:25:301
323695499401,31cyclictest3278462-21sshd11:10:221
3236956993932,4cyclictest167550irq/134-8000000.ethernet-tx207:30:162
3236956993930,5cyclictest167550irq/134-8000000.ethernet-tx210:20:232
3236956993928,6cyclictest0-21swapper/212:25:282
3236956993918,14cyclictest311ktimers/208:50:112
3236954993928,7cyclictest0-21swapper/111:25:291
3236954993926,9cyclictest231ktimers/110:30:201
3236954993926,5cyclictest0-21swapper/111:50:191
3236956993829,5cyclictest0-21swapper/209:45:002
3236956993828,5cyclictest0-21swapper/209:15:202
3236956993828,5cyclictest0-21swapper/209:15:202
3236956993827,7cyclictest3249864-21grep08:20:292
3236956993826,7cyclictest3268667-21grep10:10:272
3236956993826,7cyclictest3268667-21grep10:10:272
323695699381,30cyclictest3265784-21if_eth109:55:242
3236954993828,6cyclictest3260244-21unixbench_singl09:20:291
3236954993827,6cyclictest0-21swapper/109:10:281
3236954993826,7cyclictest0-21swapper/109:35:271
3236954993824,10cyclictest3283433-21sshd11:40:161
323695499382,27cyclictest3244163-21kworker/u8:2+rpciod07:58:231
3236956993728,5cyclictest0-21swapper/209:05:292
3236956993726,6cyclictest0-21swapper/207:10:302
3236956993726,6cyclictest0-21swapper/207:10:302
3236956993725,7cyclictest0-21swapper/207:40:292
3236956993722,9cyclictest311ktimers/207:45:142
3236956993721,9cyclictest0-21swapper/207:15:242
3236954993728,6cyclictest231ktimers/112:20:271
3236954993727,6cyclictest0-21swapper/109:40:281
3236954993727,5cyclictest0-21swapper/110:40:011
323695699367,24cyclictest0-21swapper/210:50:252
3236956993620,11cyclictest311ktimers/212:35:112
323695699361,2cyclictest0-21swapper/207:30:012
323695499368,4cyclictest0-21swapper/112:10:011
323695499362,27cyclictest3264578-21latency_hist09:50:011
3236954993619,10cyclictest0-21swapper/107:25:261
323695499361,29cyclictest3261322-21/usr/sbin/munin09:30:241
323695499361,29cyclictest3261322-21/usr/sbin/munin09:30:241
3236956993525,6cyclictest0-21swapper/209:25:282
3236956993522,7cyclictest3239654-21grep07:20:272
3236956993518,11cyclictest311ktimers/208:45:112
323695699351,28cyclictest0-21swapper/211:30:112
323695499357,3cyclictest22-21rcuc/112:10:281
323695499357,3cyclictest22-21rcuc/112:10:281
3236954993527,6cyclictest231ktimers/112:00:211
3236954993525,7cyclictest231ktimers/107:10:151
3236954993525,7cyclictest231ktimers/107:10:151
3236954993523,9cyclictest231ktimers/108:30:121
323695499351,28cyclictest0-21swapper/108:16:191
323695699346,24cyclictest0-21swapper/208:55:262
3236956993422,7cyclictest3285671-21grep11:50:282
323695699341,4cyclictest0-21swapper/208:15:302
3236954993426,6cyclictest231ktimers/111:20:181
3236954993426,5cyclictest231ktimers/108:10:221
3236954993426,5cyclictest231ktimers/107:50:001
3236954993425,6cyclictest231ktimers/110:55:231
3236954993425,4cyclictest0-21swapper/110:00:261
3236954993423,9cyclictest231ktimers/109:00:151
3236954993423,8cyclictest231ktimers/108:05:261
3236954993423,7cyclictest231ktimers/109:55:171
3236954993420,7cyclictest0-21swapper/107:40:251
323695499341,2cyclictest0-21swapper/112:20:011
3236954993323,7cyclictest231ktimers/108:22:151
323695699325,22cyclictest30-21rcuc/208:10:182
3236956993224,5cyclictest0-21swapper/208:40:252
323695699322,25cyclictest0-21swapper/209:10:162
3236956993220,9cyclictest0-21swapper/211:00:222
323695699321,7cyclictest0-21swapper/211:25:012
3236954993224,5cyclictest0-21swapper/107:30:141
3236954993223,4cyclictest0-21swapper/110:50:211
3236954993222,7cyclictest3253640-21/usr/sbin/munin08:45:191
3236954993220,7cyclictest231ktimers/110:15:021
3236954993220,7cyclictest231ktimers/110:15:021
3236954993220,6cyclictest231ktimers/112:35:201
3236954993216,9cyclictest3277448-21/usr/sbin/munin11:05:191
3236956993123,4cyclictest0-21swapper/209:20:212
3236954993126,3cyclictest14-21rcu_preempt10:15:231
3236956993023,3cyclictest0-21swapper/208:05:002
3236956993013,12cyclictest311ktimers/207:35:132
323695699301,27cyclictest3273983-21/usr/sbin/munin10:45:282
3236954993024,4cyclictest231ktimers/111:15:201
3236956992924,4cyclictest0-21swapper/208:05:172
3236954992920,6cyclictest14-21rcu_preempt11:55:211
3236954992920,6cyclictest14-21rcu_preempt11:55:211
3236956992823,4cyclictest0-21swapper/208:25:192
3236954992821,4cyclictest0-21swapper/107:20:011
3236956992721,4cyclictest0-21swapper/210:55:162
3236956992718,6cyclictest0-21swapper/210:30:202
3236956992718,4cyclictest0-21swapper/209:05:012
323695699271,24cyclictest0-21swapper/212:20:162
3236954992718,6cyclictest3282295-21kworker/u8:4+rpciod12:27:211
3236956992617,5cyclictest0-21swapper/208:35:172
3236956992616,6cyclictest0-21swapper/211:40:142
323695699261,2cyclictest0-21swapper/211:15:022
3236954992516,6cyclictest231ktimers/107:10:011
3236956992416,6cyclictest0-21swapper/211:30:012
323695699238,13cyclictest167550irq/134-8000000.ethernet-tx210:40:172
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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