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2025-06-28 - 23:14
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 376 highest latencies:
System rack1slot8.osadl.org (updated Sat Jun 28, 2025 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4504999514,14cyclictest0-21swapper/107:10:101
450399928855,65cyclictest0-21swapper/007:10:100
450499820777,29cyclictest0-21swapper/107:50:271
450399815742,37cyclictest19748-21strings07:50:270
44432673654,13sleep10-21swapper/107:09:451
294982840,3sleep129500-21sed11:20:301
249432830,17sleep0450399cyclictest12:09:320
216899830,4rtkit-daemon2167-21rtkit-daemon12:10:221
450399794,69cyclictest0-21swapper/010:58:580
450499788,21cyclictest0-21swapper/112:35:291
450499788,21cyclictest0-21swapper/112:35:291
450499776,18cyclictest0-21swapper/109:53:301
450499766,17cyclictest0-21swapper/110:55:011
450499766,17cyclictest0-21swapper/108:00:191
450499765,17cyclictest0-21swapper/111:17:521
4504997631,38cyclictest4649-21ksmtuned09:45:011
4504997612,23cyclictest0-21swapper/109:45:191
216899760,4rtkit-daemon0-21swapper/009:52:240
450499756,29cyclictest0-21swapper/109:30:191
450499756,28cyclictest0-21swapper/111:35:321
450499756,27cyclictest0-21swapper/111:57:351
450499755,26cyclictest0-21swapper/111:26:031
4504997518,12cyclictest0-21swapper/108:10:011
4504997517,16cyclictest0-21swapper/111:13:311
4504997517,13cyclictest0-21swapper/112:05:331
4504997516,19cyclictest0-21swapper/108:20:251
450499748,19cyclictest0-21swapper/109:00:011
450499747,28cyclictest0-21swapper/111:40:191
450499746,29cyclictest0-21swapper/109:26:281
450499746,27cyclictest0-21swapper/110:20:211
450499746,20cyclictest0-21swapper/109:35:021
450499746,17cyclictest0-21swapper/112:17:531
450499745,25cyclictest0-21swapper/110:05:271
450499745,15cyclictest0-21swapper/110:18:121
4504997413,18cyclictest0-21swapper/111:08:081
450399745,62cyclictest0-21swapper/008:20:210
450399742,65cyclictest28379-21basename10:25:170
450499737,27cyclictest0-21swapper/108:12:541
450499737,20cyclictest0-21swapper/112:30:271
450499737,20cyclictest0-21swapper/112:30:271
450499737,17cyclictest0-21swapper/112:20:211
450499736,27cyclictest0-21swapper/111:49:401
450499736,27cyclictest0-21swapper/111:49:401
450499736,27cyclictest0-21swapper/111:33:071
450499736,26cyclictest0-21swapper/108:33:421
450499736,24cyclictest0-21swapper/109:23:261
450499735,27cyclictest0-21swapper/110:49:321
4504997314,19cyclictest0-21swapper/110:00:341
4504997313,14cyclictest0-21swapper/107:20:021
450499728,21cyclictest0-21swapper/110:35:201
450499728,21cyclictest0-21swapper/107:40:201
450499727,27cyclictest0-21swapper/107:37:561
450499727,20cyclictest0-21swapper/112:25:191
450499726,27cyclictest0-21swapper/110:30:131
450499726,27cyclictest0-21swapper/107:23:021
450499725,27cyclictest0-21swapper/109:15:391
450399722,40cyclictest4373-21ssh12:30:020
450499718,23cyclictest0-21swapper/109:00:281
450499717,29cyclictest0-21swapper/110:40:181
450499717,20cyclictest0-21swapper/109:55:081
450499716,29cyclictest0-21swapper/111:50:201
450499716,27cyclictest0-21swapper/110:25:231
450499716,27cyclictest0-21swapper/109:10:291
450499716,25cyclictest0-21swapper/109:05:231
450499715,27cyclictest0-21swapper/110:51:531
4504997116,17cyclictest0-21swapper/107:30:281
450399712,57cyclictest10057-21munin-node07:25:200
216899710,5rtkit-daemon2167-21rtkit-daemon10:54:410
450499708,19cyclictest0-21swapper/108:40:101
450499706,18cyclictest0-21swapper/108:50:291
450499705,29cyclictest0-21swapper/112:01:221
450499705,26cyclictest0-21swapper/108:20:011
4504997018,15cyclictest0-21swapper/111:00:191
4504997010,22cyclictest0-21swapper/108:48:021
450399704,59cyclictest0-21swapper/008:50:010
450399703,38cyclictest21693-21latency_hist09:20:010
450399702,62cyclictest27940-21kworker/0:010:05:180
450399702,60cyclictest5244-21munin-node12:30:230
450399702,60cyclictest5244-21munin-node12:30:230
450399702,35cyclictest10725-21ssh11:45:020
450399702,35cyclictest10725-21ssh11:45:010
450499699,27cyclictest0-21swapper/108:25:171
450499696,27cyclictest0-21swapper/110:10:211
4504996915,16cyclictest0-21swapper/107:25:471
450399692,61cyclictest26577-21unixbench_multi10:20:300
450399692,61cyclictest10538-21df_abs08:55:160
450399692,59cyclictest1701-21idleruntime-cro10:35:010
450399692,38cyclictest7842-21munin-node11:40:260
450499687,27cyclictest0-21swapper/107:45:221
450499687,26cyclictest0-21swapper/108:35:221
4504996813,19cyclictest0-21swapper/107:55:261
450399682,49cyclictest2875-21idleruntime-cro08:35:000
450399682,38cyclictest26190-21memory11:15:250
450399674,57cyclictest0-21swapper/009:28:470
450399673,50cyclictest1371-21latency_hist12:25:000
450399672,57cyclictest21116-21awk07:55:150
450399672,35cyclictest12609-21kernelversion09:00:220
450399665,39cyclictest0-21swapper/011:36:350
450399664,56cyclictest0-21swapper/010:00:190
450399663,43cyclictest14035-21df11:50:190
450399663,37cyclictest25315-21munin-run11:15:010
4503996626,25cyclictest8250irq/14-pata_sch11:55:160
450399662,58cyclictest8490-21grep12:35:290
450399662,58cyclictest8490-21grep12:35:290
450399662,57cyclictest23015-21unixbench-2d09:20:270
450399662,49cyclictest4172-21ssh11:33:190
450399662,48cyclictest7959-21munin-node10:45:140
450399658,50cyclictest0-21swapper/011:25:410
450399653,55cyclictest16730-21munin-node11:00:340
450399653,46cyclictest18609-21crond09:15:000
450399653,36cyclictest29762-21munin-run08:20:010
450399652,56cyclictest5230-21gltestperf09:45:190
450399652,56cyclictest27977-21idleruntime-cro12:14:590
450399652,38cyclictest21723-21ksmtuned12:03:230
450399652,35cyclictest13392-21idleruntime-cro10:00:000
4503996517,28cyclictest0-21swapper/010:37:460
450399642,56cyclictest30182-21sh11:21:590
450399642,55cyclictest8257-21munin-node07:20:270
450399642,55cyclictest5380-21idleruntime10:40:210
450399642,55cyclictest18292sleep009:40:160
450399642,40cyclictest1086-21ntpd07:40:230
450399642,36cyclictest15525-21munin-run09:10:000
450399635,51cyclictest0-21swapper/009:35:180
450399634,52cyclictest0-21swapper/010:15:340
450399632,55cyclictest28479-21grep09:30:220
450399632,55cyclictest20418-21ntp_kernel_err11:05:270
450399632,36cyclictest8097-21crond07:20:010
408426323,28sleep00-21swapper/007:06:100
450399622,53cyclictest13509-21idleruntime-cro07:35:010
450399614,52cyclictest0-21swapper/010:10:240
450399613,32cyclictest29443-21yum12:15:330
450399612,53cyclictest24765-21df_abs08:05:180
450399612,44cyclictest24016-21ps08:01:460
450399602,52cyclictest3426-21tail08:35:210
450399593,51cyclictest8449-21munin-node08:50:240
216899590,4rtkit-daemon2167-21rtkit-daemon08:27:280
450399582,50cyclictest6512-21latency_hist08:45:010
450399582,37cyclictest13665-21munin-node07:35:240
450399564,46cyclictest0-21swapper/008:10:130
450399552,47cyclictest18815-21seq07:49:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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