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2026-09-23 - 20:19

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 Wed Sep 23, 2026 12:44:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1808483999991,6cyclictest131ktimers/010:20:200
180848399942,4cyclictest0-21swapper/009:35:010
180848599871,48cyclictest0-21swapper/108:50:021
180848399772,68cyclictest1835741-21irqstats09:45:210
1808483997427,40cyclictest20850irq/208-8000000.ethernet12:30:270
1808483997332,36cyclictest1846464-21grep10:45:290
180848399721,64cyclictest900-21dropbear12:20:190
180848399721,64cyclictest900-21dropbear12:20:190
180848599706,37cyclictest24-21ksoftirqd/111:55:011
180848399701,63cyclictest1843221-21latency_hist10:30:000
180848399701,4cyclictest1863059-21meminfo12:25:240
180848399691,65cyclictest1810756-21cut07:20:190
180848399691,65cyclictest1810079-21memory07:15:240
180848399682,4cyclictest1838656-21apt-get10:05:020
180848399681,65cyclictest0-21swapper/008:45:250
1808483996810,51cyclictest1829555-21latency_hist09:10:010
1808485996715,18cyclictest1823475-21/usr/sbin/munin08:35:181
180848399672,4cyclictest1834941-21meminfo09:40:230
180848399671,4cyclictest1829637-21df_inode09:10:190
180848399671,3cyclictest1854318-21apt-get11:35:130
180848399671,3cyclictest1815764-21df_inode07:50:170
180848399651,58cyclictest0-21swapper/010:15:010
180848399641,61cyclictest0-21swapper/010:05:010
180848399641,3cyclictest1849896-21munin-run11:10:000
180848399636,53cyclictest0-21swapper/011:30:300
1808483996318,3cyclictest0-21swapper/008:55:010
180848399631,3cyclictest1827100-21df_inode08:55:200
180848399631,10cyclictest1846993-21/usr/sbin/munin10:50:270
180848399623,20cyclictest0-21swapper/012:05:010
1808483996225,31cyclictest0-21swapper/012:10:320
1808483996222,36cyclictest0-21swapper/010:35:290
180848399621,55cyclictest0-21swapper/010:35:010
180848399621,55cyclictest0-21swapper/010:35:000
1808483996150,5cyclictest0-21swapper/009:15:160
180848399612,26cyclictest1824114-21apt-get08:40:060
180848399611,54cyclictest1860154-21latency_hist12:10:010
180848399611,4cyclictest1813772-21users07:35:300
180848399611,3cyclictest1857111-21irqstats11:50:270
1808483996021,34cyclictest0-21swapper/009:25:290
1808483996015,8cyclictest0-21swapper/011:25:280
180848399601,55cyclictest1823751-21uname08:35:240
180848399592,54cyclictest1837458-21meminfo09:55:250
180848399592,3cyclictest1660-21snmpd12:16:390
180848399592,28cyclictest1814142-21grep07:40:200
180848399591,3cyclictest1851582-21munin-run11:20:000
180848399582,4cyclictest1836391-21diskstats09:50:220
1808483995823,4cyclictest0-21swapper/008:10:280
1808483995823,3cyclictest0-21swapper/009:35:280
180848399581,4cyclictest1857865-21perl11:55:200
180848399581,4cyclictest1816605-21df_inode07:55:170
180848399581,4cyclictest1816605-21df_inode07:55:170
180848399581,3cyclictest0-21swapper/011:40:170
180848399581,30cyclictest0-21swapper/010:55:160
180848399581,30cyclictest0-21swapper/010:55:160
180848399581,26cyclictest0-21swapper/007:25:100
180848399571,53cyclictest0-21swapper/008:20:270
180848399571,50cyclictest0-21swapper/012:35:090
180848399571,3cyclictest1845115-21diskstats10:40:170
180848399562,3cyclictest1841487-21latency_hist10:20:020
180848399562,3cyclictest1841487-21latency_hist10:20:020
1808483995616,37cyclictest0-21swapper/007:30:310
180848399561,53cyclictest0-21swapper/011:10:300
180848399561,53cyclictest0-21swapper/011:10:290
180848399561,4cyclictest1828148-21irqstats09:00:240
180848399561,4cyclictest1828148-21irqstats09:00:230
180848399561,25cyclictest1809098-21sendmail_mailqu07:10:270
1808483995535,17cyclictest167350irq/118-8000000.ethernet-tx008:30:310
1808483995515,8cyclictest0-21swapper/011:45:250
180848399541,51cyclictest1849113-21sed11:05:010
180848399541,4cyclictest1820168-21diskstats08:15:200
1808483995324,4cyclictest1831911-21munin-plugin-st09:25:000
180848399531,50cyclictest1852418-21sshd11:22:430
180848399531,3cyclictest1818241-21apt-get08:05:130
180848399531,30cyclictest0-21swapper/007:49:460
180848399531,28cyclictest0-21swapper/008:27:080
1808489995245,4cyclictest1819810-21munin-plugin-st08:14:592
1808489995240,8cyclictest0-21swapper/211:24:592
180848999522,28cyclictest1824238-21cmp08:40:012
1808485995141,5cyclictest1862563-21munin-plugin-st12:25:001
1808485995141,5cyclictest1862563-21munin-plugin-st12:25:001
180848399501,3cyclictest1818033-21cron08:04:590
1808485994917,17cyclictest1848417-21/usr/sbin/munin11:00:181
1808489994838,7cyclictest1865091-21sendmail12:40:012
1808485994835,9cyclictest1835828-21phc2sys-jitter09:45:251
1808489994739,4cyclictest1809453-21fschecks_count07:15:022
180848599471,4cyclictest0-21swapper/110:50:021
1808489994634,8cyclictest1858336-21sendmail12:00:012
1808489994435,5cyclictest0-21swapper/211:10:002
1808485994425,10cyclictest0-21swapper/108:55:301
180848599441,4cyclictest0-21swapper/111:35:011
1808489994328,8cyclictest0-21swapper/211:40:292
1808485994335,5cyclictest1863394-21cron12:29:591
1808485994327,10cyclictest0-21swapper/109:05:291
1808485994314,2cyclictest0-21swapper/109:25:001
1808489994233,6cyclictest274-21systemd-journal08:10:002
1808489994233,5cyclictest1837714-21grep09:55:282
1808489994233,4cyclictest1822437-21munin-plugin-st08:29:592
1808489994230,8cyclictest1835221-21grep09:40:292
1808489994230,8cyclictest1283-21cron09:54:592
1808489994228,8cyclictest0-21swapper/211:50:332
1808489994223,5cyclictest347814-1kworker/2:0H+kblockd10:40:042
1808485994231,5cyclictest1835166-21grep09:40:291
1808485994223,14cyclictest231ktimers/109:30:131
180848399421,35cyclictest0-21swapper/007:10:000
1808489994131,6cyclictest0-21swapper/210:10:302
1808489994128,9cyclictest0-21swapper/211:30:302
1808485994129,6cyclictest0-21swapper/111:40:001
1808485994123,11cyclictest1849889-21cron11:10:001
1808485994117,12cyclictest231ktimers/109:35:121
1808489994030,5cyclictest0-21swapper/211:45:282
1808489994030,5cyclictest0-21swapper/210:20:302
1808485994024,10cyclictest0-21swapper/110:25:201
1808489993927,8cyclictest0-21swapper/208:50:302
1808489993925,8cyclictest0-21swapper/210:05:232
180848599394,6cyclictest0-21swapper/112:05:011
1808485993931,6cyclictest22-21rcuc/112:10:021
1808485993929,6cyclictest0-21swapper/107:20:281
1808485993928,5cyclictest0-21swapper/110:05:171
1808485993925,9cyclictest0-21swapper/108:40:281
1808485993924,10cyclictest0-21swapper/108:30:281
1808485993826,7cyclictest0-21swapper/112:35:281
1808485993826,6cyclictest0-21swapper/110:55:281
1808485993826,6cyclictest0-21swapper/110:55:281
1808485993825,9cyclictest1821550-21grep08:20:281
1808485993824,8cyclictest1852319-21grep11:20:281
1808485993824,10cyclictest0-21swapper/108:10:051
1808485993812,23cyclictest22-21rcuc/108:50:001
1808489993728,4cyclictest1813681-21unixbench_multi07:35:282
1808489993728,4cyclictest0-21swapper/211:35:302
1808489993726,6cyclictest0-21swapper/209:15:192
1808489993724,8cyclictest0-21swapper/207:30:292
1808485993731,3cyclictest1844757-21apt-get10:40:001
1808485993728,4cyclictest0-21swapper/107:55:281
1808485993728,4cyclictest0-21swapper/107:55:281
1808485993727,6cyclictest0-21swapper/110:20:241
1808485993724,9cyclictest0-21swapper/110:20:001
1808485993724,9cyclictest0-21swapper/110:20:001
180848599371,30cyclictest1861061-21/usr/sbin/munin12:15:171
1808489993628,5cyclictest1848943-21unixbench_multi11:00:292
1808489993627,4cyclictest0-21swapper/207:50:192
1808489993625,7cyclictest0-21swapper/207:25:012
1808489993624,8cyclictest0-21swapper/212:15:282
1808489993624,8cyclictest0-21swapper/209:35:292
180848999360,29cyclictest200-21pr/ttyS210:40:002
1808485993625,5cyclictest167450irq/126-8000000.ethernet-tx108:20:011
1808485993615,14cyclictest0-21swapper/112:30:251
1808489993524,7cyclictest1828425-21grep09:00:292
1808489993524,7cyclictest1828425-21grep09:00:282
1808489993524,7cyclictest0-21swapper/211:30:002
1808489993524,6cyclictest0-21swapper/208:40:292
1808489993522,9cyclictest0-21swapper/210:50:222
1808485993522,8cyclictest1839873-21/usr/sbin/munin10:10:211
180848599351,2cyclictest0-21swapper/110:45:011
180848599351,2cyclictest0-21swapper/109:15:011
1808489993427,5cyclictest1822636-21/usr/sbin/munin08:30:172
1808489993426,4cyclictest0-21swapper/208:00:262
1808489993421,8cyclictest0-21swapper/210:30:252
1808489993421,8cyclictest0-21swapper/210:30:252
1808489993421,8cyclictest0-21swapper/208:20:182
1808489993410,13cyclictest0-21swapper/207:45:002
1808485993424,5cyclictest0-21swapper/111:55:291
1808485993424,5cyclictest0-21swapper/107:10:201
1808485993421,6cyclictest0-21swapper/110:50:321
1808485993419,9cyclictest0-21swapper/107:40:191
180848599341,3cyclictest0-21swapper/109:20:011
180848599341,2cyclictest0-21swapper/111:20:011
1808489993323,7cyclictest1859080-21grep12:00:312
1808489993323,6cyclictest0-21swapper/208:00:012
1808489993323,6cyclictest0-21swapper/208:00:012
1808489993322,7cyclictest0-21swapper/212:30:332
1808489993321,8cyclictest0-21swapper/208:15:292
1808489993321,6cyclictest1860221-21/usr/sbin/munin12:10:222
1808489993320,8cyclictest0-21swapper/210:55:172
1808489993320,8cyclictest0-21swapper/210:55:162
1808489993315,7cyclictest0-21swapper/211:15:022
1808485993327,4cyclictest0-21swapper/110:30:191
1808485993327,4cyclictest0-21swapper/110:30:191
1808485993321,8cyclictest231ktimers/110:00:131
1808485993319,9cyclictest0-21swapper/107:20:011
1808489993228,2cyclictest0-21swapper/210:50:002
1808489993224,4cyclictest0-21swapper/210:25:292
180848999321,8cyclictest0-21swapper/207:50:012
180848999321,2cyclictest0-21swapper/207:30:012
1808485993223,5cyclictest0-21swapper/112:05:261
1808485993222,7cyclictest0-21swapper/107:45:281
1808485993222,5cyclictest0-21swapper/111:10:331
1808485993222,5cyclictest0-21swapper/111:10:331
1808485993221,7cyclictest1828459-21grep09:00:301
1808485993221,7cyclictest1828459-21grep09:00:301
1808485993221,7cyclictest0-21swapper/107:25:281
1808489993120,8cyclictest0-21swapper/210:00:202
1808485993123,5cyclictest0-21swapper/107:40:001
1808485993120,6cyclictest22-21rcuc/111:25:281
1808485993118,8cyclictest0-21swapper/109:50:271
1808489993022,6cyclictest1835482-21/usr/sbin/munin09:45:152
1808489993018,8cyclictest0-21swapper/211:15:302
180848599303,19cyclictest1856660-21latency_hist11:50:001
1808485993024,4cyclictest0-21swapper/108:05:141
1808485993023,4cyclictest0-21swapper/107:30:271
1808485993019,5cyclictest0-21swapper/108:25:201
180848599301,26cyclictest0-21swapper/111:44:221
1808489992922,4cyclictest0-21swapper/212:25:282
1808489992921,5cyclictest1832730-21sshd09:28:202
1808489992918,7cyclictest1810334-21grep07:15:282
1808489992916,7cyclictest0-21swapper/209:10:282
1808489992915,9cyclictest0-21swapper/212:05:282
180848999291,26cyclictest0-21swapper/211:10:222
1808485992921,6cyclictest1818017-21sshd08:01:431
180848599291,2cyclictest0-21swapper/107:55:001
1808489992819,5cyclictest0-21swapper/208:45:272
1808489992819,4cyclictest0-21swapper/209:10:002
180848999281,25cyclictest0-21swapper/212:20:282
180848999281,25cyclictest0-21swapper/212:20:282
1808489992617,7cyclictest311ktimers/209:30:312
1808489992614,8cyclictest0-21swapper/209:20:272
1808489992612,10cyclictest0-21swapper/209:00:012
1808489992517,4cyclictest0-21swapper/210:15:162
1808489992517,4cyclictest0-21swapper/210:15:162
1808485992415,7cyclictest231ktimers/109:55:141
1808485992415,6cyclictest0-21swapper/109:25:161
1808485992218,2cyclictest0-21swapper/107:10:001
180848999189,6cyclictest0-21swapper/207:10:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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