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2026-07-31 - 20:07

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 Fri Jul 31, 2026 12:44:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
354063996152,6cyclictest389023-21munin-plugin-st10:35:001
354062995512,38cyclictest0-21swapper/007:55:180
354062995442,8cyclictest363608-21munin-plugin-st08:05:010
35406299511,45cyclictest373793-21grep09:00:300
354063995042,5cyclictest356845-21cron07:25:001
354062995042,5cyclictest392402-21munin-plugin-st10:55:010
354066994839,4cyclictest0-21swapper/210:15:202
354063994841,4cyclictest360233-21munin-plugin-st07:44:591
35406299481,27cyclictest0-21swapper/007:50:010
354063994735,8cyclictest388148-21grep10:25:301
354062994638,4cyclictest167350irq/118-8000000.ethernet-tx008:35:000
354066994532,10cyclictest372976-21sendmail09:00:002
354063994532,8cyclictest0-21swapper/111:25:291
354062994535,7cyclictest0-21swapper/012:10:010
354062994523,19cyclictest20650irq/252-8000000.ethernet07:50:250
354062994523,19cyclictest20650irq/252-8000000.ethernet07:50:250
354066994435,5cyclictest0-21swapper/210:25:012
354066994432,8cyclictest0-21swapper/208:20:302
354063994434,6cyclictest383064-21unixbench_singl09:55:301
354063994434,6cyclictest383064-21unixbench_singl09:55:301
354062994437,4cyclictest167350irq/118-8000000.ethernet-tx012:30:220
354062994437,4cyclictest167350irq/118-8000000.ethernet-tx010:45:250
354066994331,9cyclictest406848-21sendmail12:19:592
354063994334,5cyclictest0-21swapper/108:05:311
354063994332,8cyclictest385642-21munin-plugin-st10:15:001
354063994329,9cyclictest0-21swapper/111:55:181
35406399432,33cyclictest397458-21unixbench_multi11:20:291
354062994334,5cyclictest376160-21sendmail_mailqu09:15:280
354062994334,5cyclictest376160-21sendmail_mailqu09:15:270
354062994334,5cyclictest0-21swapper/008:10:290
354062994329,10cyclictest0-21swapper/009:15:000
354062994328,11cyclictest0-21swapper/012:00:000
354066994231,8cyclictest0-21swapper/209:55:002
354063994233,5cyclictest0-21swapper/109:00:001
354063994223,7cyclictest0-21swapper/112:30:291
354062994236,3cyclictest20650irq/252-8000000.ethernet09:55:250
354062994236,3cyclictest20650irq/252-8000000.ethernet09:55:240
354062994236,3cyclictest0-21swapper/007:10:290
354062994236,3cyclictest0-21swapper/007:10:290
354062994231,7cyclictest0-21swapper/009:35:290
35406299421,38cyclictest380015-21df_inode09:40:170
354066994129,8cyclictest0-21swapper/212:05:292
354066994128,9cyclictest0-21swapper/210:30:012
354063994132,5cyclictest0-21swapper/108:45:301
354063994131,6cyclictest390621-21grep10:40:291
354063994131,5cyclictest400035-21grep11:35:281
354063994127,9cyclictest0-21swapper/107:10:301
354063994127,9cyclictest0-21swapper/107:10:301
354066994031,6cyclictest358441-21grep07:30:302
354066994030,7cyclictest398300-21grep11:25:272
354066994029,6cyclictest0-21swapper/208:25:302
354063994032,5cyclictest410221-21run-parts12:40:011
354063994031,6cyclictest361855-21grep07:50:331
354063994031,6cyclictest361855-21grep07:50:331
354063994031,5cyclictest0-21swapper/109:30:311
354063994030,7cyclictest0-21swapper/107:35:291
354063994029,7cyclictest0-21swapper/107:30:301
354063994027,7cyclictest402556-21grep11:50:291
354063994027,7cyclictest0-21swapper/112:00:291
354063994026,9cyclictest0-21swapper/110:55:021
354063994025,9cyclictest0-21swapper/110:20:291
35406399401,32cyclictest0-21swapper/108:00:291
354062994034,4cyclictest20850irq/208-8000000.ethernet09:55:000
354062994031,5cyclictest20850irq/208-8000000.ethernet07:40:000
35406299401,7cyclictest387234-21unixbench_multi10:20:290
354062994013,25cyclictest131ktimers/009:30:190
354066993930,4cyclictest0-21swapper/207:15:012
354066993926,9cyclictest0-21swapper/211:00:282
354066993926,8cyclictest0-21swapper/210:55:302
354066993924,11cyclictest0-21swapper/211:45:202
35406699391,32cyclictest410161-21unixbench_singl12:35:322
354063993930,5cyclictest0-21swapper/110:35:311
35406299393,31cyclictest0-21swapper/011:55:000
354062993931,4cyclictest167350irq/118-8000000.ethernet-tx008:25:210
354062993918,19cyclictest363873-21/usr/sbin/munin08:05:200
35406299391,36cyclictest0-21swapper/007:30:160
354066993830,4cyclictest0-21swapper/210:35:302
354066993828,6cyclictest0-21swapper/209:00:222
354066993827,8cyclictest0-21swapper/212:30:292
35406699382,32cyclictest407903-21/usr/sbin/munin12:25:192
35406399386,25cyclictest370011-21kernelversion08:40:241
354063993828,7cyclictest372015-21grep08:50:291
354063993828,7cyclictest372015-21grep08:50:291
354063993828,6cyclictest393224-21grep10:55:291
354063993828,6cyclictest360973-21grep07:45:301
354062993830,5cyclictest0-21swapper/011:15:180
354062993830,5cyclictest0-21swapper/011:15:180
354062993830,4cyclictest167350irq/118-8000000.ethernet-tx012:35:280
35406299381,4cyclictest0-21swapper/008:50:150
35406299381,4cyclictest0-21swapper/008:50:140
35406299381,3cyclictest404296-21users12:00:290
35406299381,2cyclictest0-21swapper/010:25:200
354066993727,7cyclictest0-21swapper/209:55:292
354066993727,7cyclictest0-21swapper/209:55:292
354066993727,6cyclictest0-21swapper/208:35:292
354066993727,5cyclictest0-21swapper/207:50:322
354066993727,5cyclictest0-21swapper/207:50:322
354066993725,7cyclictest0-21swapper/207:45:312
354063993729,5cyclictest407590-21grep12:20:251
354063993729,5cyclictest407590-21grep12:20:251
354063993727,5cyclictest0-21swapper/112:10:201
354063993726,7cyclictest0-21swapper/108:35:301
354063993724,9cyclictest0-21swapper/109:45:011
354063993724,9cyclictest0-21swapper/107:25:261
354063993724,7cyclictest0-21swapper/109:20:291
354063993724,10cyclictest368150-21sh08:30:221
354062993732,3cyclictest20650irq/252-8000000.ethernet07:40:220
354062993730,5cyclictest407702-21munin-run12:25:010
354062993730,5cyclictest407702-21munin-run12:25:000
354062993729,4cyclictest374467-21grep09:05:280
354062993727,7cyclictest0-21swapper/010:34:590
354062993727,6cyclictest393257-21grep10:55:310
354062993726,7cyclictest400774-21mailstats11:40:330
354062993726,7cyclictest400774-21mailstats11:40:320
354062993725,9cyclictest0-21swapper/008:15:280
354062993725,9cyclictest0-21swapper/008:15:280
354062993725,8cyclictest0-21swapper/011:10:220
354062993725,6cyclictest357648-21grep07:25:300
354066993628,5cyclictest0-21swapper/208:05:302
354066993628,4cyclictest0-21swapper/211:55:182
354066993627,5cyclictest0-21swapper/209:25:262
354066993626,7cyclictest0-21swapper/211:40:342
354066993626,7cyclictest0-21swapper/211:40:332
354066993624,8cyclictest390661-21grep10:40:282
354066993624,8cyclictest0-21swapper/208:15:002
354066993622,7cyclictest0-21swapper/207:55:292
354066993614,4cyclictest832-21systemd-network10:30:222
35406399364,26cyclictest22-21rcuc/109:10:301
354063993629,4cyclictest167450irq/126-8000000.ethernet-tx109:45:131
354063993629,4cyclictest167450irq/126-8000000.ethernet-tx107:55:141
354063993628,5cyclictest0-21swapper/109:35:291
354063993627,5cyclictest0-21swapper/109:50:261
354063993627,4cyclictest0-21swapper/107:15:321
354063993626,7cyclictest0-21swapper/108:15:301
354063993626,7cyclictest0-21swapper/108:15:301
354063993623,8cyclictest0-21swapper/110:15:191
354063993619,10cyclictest0-21swapper/109:05:221
35406399361,29cyclictest0-21swapper/109:25:211
35406399361,28cyclictest0-21swapper/111:05:251
354062993631,2cyclictest0-21swapper/011:25:240
354062993629,4cyclictest20850irq/208-8000000.ethernet10:05:260
354062993629,4cyclictest0-21swapper/011:20:300
354062993627,5cyclictest0-21swapper/009:45:210
354062993623,8cyclictest408442-21grep12:25:280
354066993527,4cyclictest0-21swapper/212:20:262
354066993527,4cyclictest0-21swapper/212:20:252
354066993526,5cyclictest0-21swapper/212:10:192
354066993526,5cyclictest0-21swapper/211:30:272
354066993524,8cyclictest0-21swapper/209:50:012
35406699351,27cyclictest394670-21kernelversion11:05:252
354063993526,5cyclictest0-21swapper/108:25:311
354063993523,8cyclictest0-21swapper/111:40:311
354063993523,8cyclictest0-21swapper/111:40:311
354062993529,4cyclictest20850irq/208-8000000.ethernet10:35:240
354062993529,3cyclictest0-21swapper/011:00:270
354062993527,5cyclictest20850irq/208-8000000.ethernet08:55:110
354062993527,5cyclictest0-21swapper/010:40:290
354062993526,5cyclictest0-21swapper/008:20:210
35406299351,32cyclictest0-21swapper/008:45:140
35406299351,32cyclictest0-21swapper/007:15:280
354066993426,5cyclictest0-21swapper/211:20:282
354066993426,4cyclictest0-21swapper/211:10:222
354066993423,7cyclictest392284-21grep10:50:282
35406699342,26cyclictest0-21swapper/210:05:142
354063993428,4cyclictest1261-21rs:main1
354063993424,6cyclictest395830-21grep11:10:291
354063993423,8cyclictest0-21swapper/111:15:301
354063993423,8cyclictest0-21swapper/111:15:301
354062993430,2cyclictest0-21swapper/008:40:000
354062993425,5cyclictest0-21swapper/012:15:300
354062993424,6cyclictest377120-21grep09:20:300
354062993423,8cyclictest400096-21sendmail11:40:000
354062993420,9cyclictest0-21swapper/011:05:280
35406299341,6cyclictest401563-21grep11:45:260
35406299341,21cyclictest4109060-1kworker/0:2H+kblockd07:10:000
354066993326,4cyclictest0-21swapper/208:45:272
354066993326,4cyclictest0-21swapper/207:40:252
354066993325,5cyclictest0-21swapper/210:10:192
354066993324,6cyclictest0-21swapper/207:15:012
354066993323,6cyclictest0-21swapper/207:15:322
35406399338,15cyclictest399194-21grep11:30:271
354063993325,5cyclictest0-21swapper/110:00:321
354063993324,5cyclictest0-21swapper/111:45:181
354062993326,4cyclictest0-21swapper/010:00:130
35406299331,3cyclictest0-21swapper/010:10:180
354066993222,5cyclictest0-21swapper/208:50:292
354066993222,5cyclictest0-21swapper/208:50:292
354066993221,8cyclictest0-21swapper/211:15:272
354066993221,8cyclictest0-21swapper/211:15:272
354066993221,8cyclictest0-21swapper/209:05:272
354066993221,7cyclictest0-21swapper/211:50:292
354063993224,4cyclictest0-21swapper/111:00:301
354063993223,4cyclictest0-21swapper/112:25:201
354063993221,8cyclictest0-21swapper/112:05:301
354062993228,2cyclictest0-21swapper/011:30:280
354062993225,4cyclictest0-21swapper/008:40:270
354062993223,5cyclictest0-21swapper/009:25:210
354066993122,6cyclictest357576-21grep07:25:292
354066993113,4cyclictest167550irq/134-8000000.ethernet-tx207:20:292
354063993122,6cyclictest0-21swapper/108:20:281
354063993121,5cyclictest0-21swapper/109:15:291
354063993121,5cyclictest0-21swapper/109:15:291
354062993124,4cyclictest167350irq/118-8000000.ethernet-tx012:10:210
35406299311,6cyclictest356514-21memory07:20:260
354066993023,5cyclictest1660-21snmpd08:19:142
354066993023,5cyclictest1660-21snmpd08:19:142
354066993022,6cyclictest0-21swapper/209:35:282
354066993021,5cyclictest0-21swapper/209:10:292
354066993018,8cyclictest0-21swapper/210:45:282
354066993017,9cyclictest0-21swapper/207:10:012
354063993018,8cyclictest390978-21dropbear10:45:171
354062993019,8cyclictest131ktimers/010:15:260
354066992917,8cyclictest0-21swapper/211:35:282
354066992911,5cyclictest167550irq/134-8000000.ethernet-tx209:34:332
354066992911,5cyclictest167550irq/134-8000000.ethernet-tx208:30:282
354063992920,7cyclictest231ktimers/109:00:271
354063992919,6cyclictest384713-21grep10:05:291
354066992820,5cyclictest0-21swapper/212:00:262
354066992820,4cyclictest0-21swapper/208:40:272
354066992818,7cyclictest0-21swapper/209:40:272
354066992813,10cyclictest0-21swapper/210:00:162
35406699281,25cyclictest1660-21snmpd07:37:562
35406699278,16cyclictest167550irq/134-8000000.ethernet-tx208:03:012
35406399275,13cyclictest365183-21grep08:10:291
354066992612,8cyclictest311ktimers/209:20:162
354066992415,6cyclictest0-21swapper/209:15:202
354066992415,6cyclictest0-21swapper/209:15:202
35406399232,13cyclictest354181-21latency_hist07:10:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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