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2026-07-26 - 15:41
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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 rack7slot2.osadl.org (updated Sun Jul 26, 2026 12:44:08)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
529380998047,25cyclictest53-21kswapd012:35:100
529380997628,28cyclictest703384-21sed11:50:200
529380997160,7cyclictest665376-21kworker/u4:2+events_unbound11:44:280
529380997127,39cyclictest0-21swapper/009:05:130
529381997056,12cyclictest712304-21df_inode12:00:191
529381997056,12cyclictest712304-21df_inode12:00:181
52938099685,55cyclictest734146-21ssh12:25:160
52938099685,55cyclictest734146-21ssh12:25:150
529380996833,33cyclictest672337-21cpu11:15:190
529380996739,25cyclictest553890-21systemd08:43:480
529380996734,29cyclictest557255-21grep08:55:290
529380996631,33cyclictest730033-21entropy12:20:200
529381996547,10cyclictest739427-21ssh12:30:371
529380996536,27cyclictest716142-21apt12:05:010
529380996536,27cyclictest716142-21apt12:05:000
52938099652,56cyclictest739429-21ntpq12:30:370
529381996456,6cyclictest544926-21kworker/u4:5+events_unbound08:13:451
529381996456,6cyclictest544926-21kworker/u4:5+events_unbound08:13:451
52938099646,52cyclictest619600-21ssh10:15:280
529380996434,27cyclictest0-21swapper/009:50:270
52938099641,56cyclictest726165-21ssh12:15:360
529380996355,5cyclictest589959-21kworker/u4:16+events_unbound09:49:060
529380996340,20cyclictest614725-21df_abs10:10:160
529380996340,20cyclictest0-21swapper/011:34:280
52938099633,52cyclictest676558-21ssh11:20:110
529380996331,29cyclictest633100-21sh10:30:390
529380996327,34cyclictest645372-21latency_hist10:45:010
529380996238,21cyclictest579469-21ntp_kernel_pll_09:30:300
529380996231,27cyclictest583606-21tune2fs09:35:200
52938099622,44cyclictest628657-21ntpq10:25:370
52938099622,42cyclictest681737-21ssh11:25:300
52938099621,56cyclictest637357-21ntpq10:35:270
529381996146,10cyclictest618882-21apt-get10:15:121
529381996132,10cyclictest0-21swapper/109:30:361
529381996131,14cyclictest632873-21sh10:30:281
529381996127,18cyclictest0-21swapper/111:20:281
52938099614,51cyclictest707549-21apt-get11:55:110
529380996131,26cyclictest589959-21kworker/u4:16-rpciod10:05:250
529380996128,30cyclictest0-21swapper/007:30:350
529380996127,31cyclictest654913-21if_eth010:55:230
52938099612,54cyclictest659611-21ssh11:00:330
529381996049,9cyclictest37-21kcompactd009:40:371
529381996047,10cyclictest53-21kswapd011:35:011
529381996042,13cyclictest574199-21apt-get09:25:131
529381996040,16cyclictest659074-21ssh11:00:191
529381996040,15cyclictest583925-21ssh09:35:291
529380996029,28cyclictest0-21swapper/012:05:180
529380996027,30cyclictest540824-21timerwakeupswit07:50:490
529380996023,33cyclictest0-21swapper/007:25:120
52938099601,40cyclictest699164-21grep11:45:210
529381995951,5cyclictest665376-21kworker/u4:2+events_unbound11:40:021
529381995949,8cyclictest674405-21kworker/u4:1+events_unbound11:49:291
529381995942,12cyclictest544445-21ntpq08:05:321
529381995927,8cyclictest565187-21apt-get09:15:141
52938099595,50cyclictest650229-21diskstats10:50:180
52938099595,47cyclictest0-21swapper/009:55:170
529380995954,3cyclictest571763-21kworker/u4:5+events_unbound09:23:560
52938099593,49cyclictest530801-21apt-get07:15:120
52938099593,48cyclictest721542-21ssh12:10:260
529380995929,27cyclictest0-21swapper/009:40:400
529380995927,28cyclictest0-21swapper/007:45:190
529380995925,32cyclictest0-21swapper/009:25:150
529381995841,13cyclictest628663-21ssh10:25:381
529381995823,10cyclictest0-21swapper/111:10:321
529380995831,25cyclictest0-21swapper/011:05:180
52938099582,42cyclictest645638-21ssh10:45:150
529380995814,40cyclictest623373-21ssh10:20:140
529381995740,12cyclictest708272-21ssh11:55:271
529381995739,14cyclictest637358-21sed10:35:281
529381995736,17cyclictest717273-21ssh12:05:331
529381995736,16cyclictest610858-21ssh10:05:351
529381995735,15cyclictest730520-21ntpq12:20:311
529380995728,26cyclictest0-21swapper/009:15:260
529380995726,28cyclictest0-21swapper/007:10:000
529380995725,29cyclictest0-21swapper/007:55:430
52938099571,53cyclictest537909-21ntpq07:40:290
52938099571,40cyclictest668581-21ssh11:10:370
529380995713,41cyclictest689929-21aten_r7power_en11:35:170
529381995650,4cyclictest714276-21kworker/u4:2+events_unbound12:17:011
529381995648,4cyclictest734108-21apt-get12:25:161
529381995648,4cyclictest734108-21apt-get12:25:151
529381995643,9cyclictest597259-21memory09:50:241
529381995641,10cyclictest537910-21awk07:40:291
529381995636,16cyclictest721561-21ssh12:10:261
529380995627,26cyclictest0-21swapper/008:20:460
529380995625,28cyclictest0-21swapper/007:20:190
529380995624,29cyclictest555835-21gltestperf08:50:230
529380995617,37cyclictest536842-21sed07:35:370
529381995540,11cyclictest614453-21apt-get10:10:111
529381995540,10cyclictest672118-21apt-get11:15:141
529381995539,14cyclictest606596-21ps10:00:401
529381995537,14cyclictest559863-21sed09:05:251
52938099554,48cyclictest530236-21ps07:10:350
52938099553,46cyclictest552094-21awk08:35:280
529380995528,24cyclictest0-21swapper/009:10:460
529380995518,34cyclictest549578-21ntpq08:25:310
52938099551,48cyclictest546394-21apt-get08:15:120
529381995446,5cyclictest542810-21fschecks_time08:00:191
529381995442,7cyclictest0-21swapper/109:10:421
529381995438,12cyclictest570585-21ntpq09:20:341
529381995437,13cyclictest645529-21ssh10:45:131
529380995432,20cyclictest543083-21/usr/sbin/munin08:00:280
52938099541,37cyclictest606425-21ssh10:00:330
529381995343,4cyclictest680962-21apt-get11:25:121
529381995341,9cyclictest703805-21ntpq11:50:271
529381995340,9cyclictest649928-21apt-get10:50:131
529381995339,9cyclictest556031-21ntpq08:50:301
529381995339,10cyclictest694560-21df_inode11:40:191
529381995338,10cyclictest534738-21apt-get07:30:091
529381995337,13cyclictest663230-21ssh11:05:131
529381995334,15cyclictest743696-21ssh12:35:301
52938099533,45cyclictest550835-21ntpq08:30:290
52938099533,33cyclictest546210-21cron08:15:010
52938099533,33cyclictest546210-21cron08:15:000
529381995241,5cyclictest592203-21ssh09:45:151
529381995239,9cyclictest552130-21ntpq08:35:311
529381995238,11cyclictest623335-21apt-get10:20:131
529381995238,11cyclictest546939-21ntpq08:15:251
529381995236,10cyclictest641117-21sh10:40:121
52938099522,46cyclictest544555-21proc_pri08:05:390
52938099521,48cyclictest558709-21ps09:00:360
529381995137,9cyclictest538572-21apt-get07:45:111
529381995137,11cyclictest558567-21ntpq09:00:271
529381995136,9cyclictest654373-21ssh10:55:131
529381995136,11cyclictest601781-21ssh09:55:271
529381995132,15cyclictest1073-21snmpd07:25:341
529380995116,32cyclictest555023-21cat08:45:470
529381995038,9cyclictest540512-21ntpq07:50:401
529381995037,9cyclictest554812-21ntpq08:45:431
529381995037,8cyclictest530002-21irqstats07:10:211
529381995037,10cyclictest550789-21ntpq08:30:271
529381995036,5cyclictest553408-21ntpq08:40:281
529381995036,10cyclictest557274-21ntpq08:55:291
529381994939,7cyclictest548777-21kworker/u4:9+events_unbound08:23:461
529381994934,11cyclictest549198-21diskstats08:25:191
529381994934,11cyclictest541201-21apt-get07:55:171
529381994933,13cyclictest536613-21ntpq07:35:301
529381994933,13cyclictest532616-21memory07:20:231
529381994835,9cyclictest530801-21apt-get07:15:141
529381994831,13cyclictest529397-21latency_hist07:10:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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