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2026-05-04 - 22:21

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 May 04, 2026 12:44:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2345305998210,17cyclictest2357944-21/usr/sbin/munin08:20:202
234530099781,5cyclictest2352214-21/usr/sbin/munin07:45:270
234530399767,29cyclictest2346105-21apt-get07:15:011
2345305997311,36cyclictest30-21rcuc/207:15:012
2345300997345,24cyclictest167350irq/118-8000000.ethernet-tx009:40:220
234530599694,48cyclictest30-21rcuc/210:15:012
234530099698,30cyclictest2371411-21apt-get09:40:010
2345300996829,33cyclictest0-21swapper/009:25:280
234530099673,5cyclictest2347475-21latency_hist07:20:010
234530099672,4cyclictest2358869-21/usr/sbin/munin08:25:180
234530399649,15cyclictest2376111-21/usr/sbin/munin10:05:191
234530399641,8cyclictest0-21swapper/108:10:191
2345300996430,29cyclictest0-21swapper/011:15:220
234530099642,3cyclictest2355863-21apt-get08:10:000
234530099632,4cyclictest2381362-21tune2fs10:35:210
234530399621,57cyclictest0-21swapper/108:20:201
234530099621,4cyclictest2357720-21cron08:20:000
2345300996126,33cyclictest0-21swapper/011:35:270
2345300996123,32cyclictest0-21swapper/007:25:280
2345300996116,42cyclictest2393329-21sshd11:45:220
2345303996053,4cyclictest0-21swapper/111:40:011
234530099602,5cyclictest2367777-21mailstats09:15:280
2345300996023,32cyclictest0-21swapper/011:15:010
2345300996023,32cyclictest0-21swapper/011:15:010
234530099601,3cyclictest2396414-21latency_hist12:05:010
234530399598,10cyclictest2372356-21apt-get09:45:021
2345300995925,31cyclictest2396618-21fschecks_time12:05:190
234530099591,5cyclictest2368480-21/usr/sbin/munin09:20:220
234530099591,50cyclictest0-21swapper/007:35:010
234530099591,4cyclictest2366523-21ssh09:10:170
2345300995820,22cyclictest20650irq/252-8000000.ethernet11:10:010
2345305995745,6cyclictest2373455-21grep09:50:012
2345300995733,21cyclictest0-21swapper/007:25:000
234530099572,5cyclictest0-21swapper/010:50:190
234530099571,6cyclictest2399797-21sed12:25:010
234530099571,4cyclictest2378724-21diskstats10:20:180
2345300995638,15cyclictest167350irq/118-8000000.ethernet-tx008:10:040
2345300995547,5cyclictest0-21swapper/008:40:210
2345300995532,18cyclictest0-21swapper/007:50:170
234530099552,5cyclictest2395521-21latency_hist12:00:000
2345300995525,25cyclictest0-21swapper/010:05:280
234530099552,49cyclictest2365743-21tune2fs09:05:200
2345300995521,31cyclictest0-21swapper/010:45:290
2345300995520,31cyclictest2364595-21latency_hist09:00:010
234530099551,8cyclictest2401874-21tail12:35:250
2345300995515,35cyclictest0-21swapper/011:30:280
234530399549,20cyclictest22-21rcuc/109:30:181
234530099546,42cyclictest2358544-21grep08:20:300
234530099543,10cyclictest2380336-21apt-get10:30:150
234530099541,8cyclictest2369931-21apt09:30:100
234530099541,5cyclictest2389315-21/usr/sbin/munin11:20:270
234530099541,4cyclictest0-21swapper/008:55:010
2345300995325,24cyclictest20650irq/252-8000000.ethernet10:25:210
2345300995323,26cyclictest0-21swapper/011:00:280
234530099532,11cyclictest2346053-21grep07:10:290
2345300995318,31cyclictest2375851-21grep10:00:290
234530099531,4cyclictest2399849-21apt12:25:120
2345300995314,37cyclictest20850irq/208-8000000.ethernet08:30:260
2345300995314,37cyclictest20850irq/208-8000000.ethernet08:30:260
234530099523,5cyclictest2377765-21latency_hist10:15:010
2345300995219,29cyclictest0-21swapper/008:40:000
234530099521,5cyclictest2398489-21/usr/sbin/munin12:15:260
2345305995142,5cyclictest2367968-21apt-get09:20:002
2345303995142,5cyclictest2354173-21sendmail08:00:001
2345303995142,5cyclictest2354173-21sendmail07:59:591
234530099512,3cyclictest2394172-21/usr/sbin/munin11:50:230
234530099512,3cyclictest2394172-21/usr/sbin/munin11:50:230
234530099511,6cyclictest2401149-21/usr/sbin/munin12:30:280
234530099511,6cyclictest2401149-21/usr/sbin/munin12:30:280
234530099511,6cyclictest2354155-21sshd07:59:220
234530099511,6cyclictest2354155-21sshd07:59:220
2345300995116,31cyclictest0-21swapper/009:50:180
234530099511,4cyclictest2354634-21sshd08:00:220
2345305995041,5cyclictest2398796-21run-parts12:20:002
234530099502,4cyclictest2351519-21/usr/sbin/munin07:40:280
234530099502,3cyclictest2374479-21/usr/sbin/munin09:55:170
234530099502,11cyclictest2389718-21apt-get11:25:150
234530099501,9cyclictest2365048-21/usr/sbin/munin09:00:220
2345305994941,5cyclictest2382763-21munin-plugin-st10:45:002
2345300994932,14cyclictest2350793-21grep07:40:000
234530099492,4cyclictest0-21swapper/009:45:110
2345303994834,9cyclictest0-21swapper/108:10:011
234530099482,5cyclictest2378375-21grep10:15:300
234530099482,4cyclictest2384703-21df10:55:180
234530099482,4cyclictest2384703-21df10:55:170
234530099481,9cyclictest2397355-21/usr/sbin/munin12:10:160
234530099481,9cyclictest2392554-21meminfo11:40:240
234530099481,8cyclictest2382119-21munin-node10:40:110
234530399471,8cyclictest0-21swapper/107:10:021
2345305994624,15cyclictest311ktimers/210:15:142
2345303994625,9cyclictest0-21swapper/107:25:261
2345300994638,4cyclictest167350irq/118-8000000.ethernet-tx008:45:260
2345303994534,7cyclictest2375062-21sendmail10:00:001
2345303994532,7cyclictest0-21swapper/111:50:291
2345303994532,7cyclictest0-21swapper/111:50:291
2345303994437,4cyclictest167450irq/126-8000000.ethernet-tx110:15:271
2345305994336,3cyclictest0-21swapper/210:30:202
234530399435,11cyclictest0-21swapper/112:15:011
2345303994335,5cyclictest2381829-21sendmail10:40:001
234530399433,20cyclictest0-21swapper/111:10:011
2345303994329,10cyclictest0-21swapper/110:55:001
2345305994235,4cyclictest2354167-21sendmail08:00:002
2345305994235,4cyclictest2354167-21sendmail08:00:002
2345305994232,6cyclictest167550irq/134-8000000.ethernet-tx210:40:002
2345305994229,8cyclictest0-21swapper/208:40:292
2345305994222,13cyclictest311ktimers/209:20:122
234530399426,19cyclictest2370769-21/usr/sbin/munin09:35:191
2345303994232,5cyclictest0-21swapper/107:35:001
2345303994229,6cyclictest2387819-21munin-plugin-st11:15:001
2345303994229,6cyclictest2387819-21munin-plugin-st11:15:001
2345305994131,5cyclictest0-21swapper/207:20:012
2345305994128,8cyclictest0-21swapper/208:30:282
2345305994128,8cyclictest0-21swapper/208:30:282
234530599410,22cyclictest2356153-21/usr/sbin/munin08:10:192
234530399419,18cyclictest2389715-21/usr/sbin/munin11:25:191
2345303994130,7cyclictest2373310-21cat09:50:001
2345303994130,6cyclictest0-21swapper/111:20:001
2345303994129,7cyclictest0-21swapper/110:25:281
2345303994129,6cyclictest0-21swapper/107:50:281
2345303994125,10cyclictest0-21swapper/108:15:291
234530399411,6cyclictest0-21swapper/111:55:191
234530399411,33cyclictest2374106-21unixbench_multi09:50:291
234530099412,11cyclictest2345432-21cat07:10:020
234530599407,22cyclictest30-21rcuc/209:05:122
2345305994032,4cyclictest2371413-21latency_hist09:40:002
2345305994029,6cyclictest2355811-21grep08:05:302
2345303994029,6cyclictest2396154-21grep12:00:271
2345303994029,3cyclictest0-21swapper/107:15:001
2345303994028,7cyclictest0-21swapper/112:30:291
2345303994028,7cyclictest0-21swapper/112:30:291
2345305993931,5cyclictest0-21swapper/210:50:282
2345305993922,11cyclictest0-21swapper/208:45:282
234530399393,29cyclictest2382408-21kernelversion10:40:241
2345303993929,6cyclictest1653-21lldpd08:30:261
2345303993929,6cyclictest1653-21lldpd08:30:261
2345303993927,8cyclictest0-21swapper/109:20:001
2345303993926,8cyclictest0-21swapper/110:10:211
234530399392,30cyclictest0-21swapper/112:05:271
2345305993827,7cyclictest0-21swapper/210:20:292
2345303993831,4cyclictest167450irq/126-8000000.ethernet-tx109:05:281
2345303993830,4cyclictest2359117-21phc2sys08:25:251
2345303993824,9cyclictest0-21swapper/110:20:221
2345303993822,10cyclictest0-21swapper/107:20:281
234530399380,2cyclictest0-21swapper/111:25:011
2345305993730,3cyclictest0-21swapper/209:45:022
2345305993729,4cyclictest0-21swapper/209:55:292
2345305993727,4cyclictest0-21swapper/209:50:192
2345305993726,8cyclictest2385497-21/usr/sbin/munin11:00:182
2345305993724,9cyclictest0-21swapper/212:00:272
2345305993722,7cyclictest0-21swapper/210:00:282
2345303993724,8cyclictest0-21swapper/108:45:301
2345303993722,9cyclictest0-21swapper/110:45:221
234530399371,2cyclictest0-21swapper/111:00:011
234530399371,2cyclictest0-21swapper/111:00:011
234530399371,28cyclictest2369380-21kernelversion09:25:231
234530399371,26cyclictest0-21swapper/108:35:221
2345305993627,5cyclictest0-21swapper/211:35:182
2345305993626,5cyclictest0-21swapper/211:05:292
2345305993626,5cyclictest0-21swapper/210:45:292
2345305993625,7cyclictest0-21swapper/207:50:282
2345305993624,9cyclictest14-21rcu_preempt11:25:002
2345303993625,7cyclictest2402127-21grep12:35:281
2345305993526,6cyclictest2376662-21grep10:05:282
2345305993525,5cyclictest0-21swapper/207:35:002
2345305993524,6cyclictest0-21swapper/208:55:272
2345305993523,8cyclictest0-21swapper/212:30:202
2345305993523,8cyclictest0-21swapper/212:30:202
2345305993521,7cyclictest0-21swapper/212:39:592
234530599351,4cyclictest0-21swapper/208:20:012
234530599351,29cyclictest0-21swapper/212:25:272
2345303993523,8cyclictest0-21swapper/107:40:001
2345303993520,8cyclictest0-21swapper/110:05:001
2345305993427,4cyclictest0-21swapper/211:25:262
2345305993425,5cyclictest0-21swapper/209:25:262
234530599342,27cyclictest0-21swapper/211:40:202
2345305993418,8cyclictest0-21swapper/208:35:262
234530599341,27cyclictest30-21rcuc/211:30:192
2345303993425,5cyclictest2351552-21grep07:40:281
2345303993418,8cyclictest0-21swapper/111:50:001
2345303993416,9cyclictest0-21swapper/111:40:271
2345305993326,3cyclictest0-21swapper/210:55:202
2345305993326,3cyclictest0-21swapper/210:55:202
2345305993324,6cyclictest0-21swapper/212:05:202
2345305993324,4cyclictest0-21swapper/211:45:212
2345305993323,6cyclictest0-21swapper/211:50:292
2345305993323,6cyclictest0-21swapper/211:50:292
2345305993322,8cyclictest2397306-21/usr/sbin/munin12:10:182
234530399335,17cyclictest22-21rcuc/109:00:111
2345303993323,5cyclictest0-21swapper/107:50:021
234530399331,4cyclictest0-21swapper/110:30:271
2345305993214,12cyclictest311ktimers/208:25:102
234530599321,26cyclictest0-21swapper/212:20:162
234530599321,24cyclictest0-21swapper/209:30:252
2345303993217,8cyclictest0-21swapper/108:40:291
2345305993124,4cyclictest0-21swapper/207:50:002
2345305993123,5cyclictest2354382-21/usr/sbin/munin08:00:292
2345305993123,4cyclictest0-21swapper/210:25:272
2345305993122,4cyclictest0-21swapper/209:10:172
2345303993121,6cyclictest0-21swapper/111:00:221
2345303993118,8cyclictest0-21swapper/109:20:291
2345305993023,4cyclictest0-21swapper/211:55:262
2345305993023,4cyclictest0-21swapper/207:40:282
2345305993021,6cyclictest0-21swapper/207:35:202
2345305993021,5cyclictest2347962-21cut07:20:262
2345303993023,4cyclictest0-21swapper/112:25:171
2345303993021,6cyclictest1660-21snmpd08:52:531
2345303993019,7cyclictest0-21swapper/108:00:291
2345305992920,6cyclictest2348636-21cut07:25:202
2345305992919,7cyclictest2365093-21sshd09:00:242
2345305992822,4cyclictest0-21swapper/211:10:182
2345305992822,4cyclictest0-21swapper/211:10:172
2345305992817,8cyclictest0-21swapper/211:15:302
2345305992812,8cyclictest0-21swapper/207:10:022
2345303992821,5cyclictest47-21kauditd12:15:011
2345305992717,7cyclictest0-21swapper/208:50:172
2345303992721,4cyclictest2364438-21grep08:55:271
234530399271,2cyclictest0-21swapper/109:15:011
234530399271,23cyclictest832-21systemd-network12:23:581
2345303992619,5cyclictest0-21swapper/111:30:261
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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