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2026-05-11 - 10:51
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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 highest latencies:
System rack1slot8.osadl.org (updated Mon May 11, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
6809918181741,62cyclictest15-21rcuop/123:05:230
327242926906,14sleep10-21swapper/119:06:141
68099432353,52cyclictest0-21swapper/019:13:090
68199386305,49cyclictest0-21swapper/119:13:101
68199337260,45cyclictest1326-21nscd23:05:221
6819910514,73cyclictest0-21swapper/119:45:001
681998615,55cyclictest0-21swapper/122:45:581
681998416,51cyclictest0-21swapper/123:37:581
228699820,4rtkit-daemon2285-21rtkit-daemon23:15:181
134392760,7sleep00-21swapper/022:10:020
68199759,55cyclictest0-21swapper/122:58:581
681997538,23cyclictest88750irq/45-eth0-rx-22:09:001
681997216,40cyclictest0-21swapper/121:17:591
680997244,23cyclictest0-21swapper/023:34:590
680997231,34cyclictest15984-21cat21:15:270
680997131,24cyclictest18367-21unixbench_singl19:55:270
680997126,26cyclictest21856-21ssh23:22:280
681997018,34cyclictest0-21swapper/121:14:001
680997058,5cyclictest5370-21ssh22:52:590
228699700,9rtkit-daemon0-21swapper/123:14:281
681996917,36cyclictest0-21swapper/122:43:581
681996915,35cyclictest0-21swapper/120:47:591
680996935,8cyclictest32450-21irqstats21:45:180
680996931,31cyclictest835-21lldpad23:10:220
680996930,31cyclictest27277-21ssh21:35:260
680996929,31cyclictest24468-21aten2.4-expect20:15:120
681996815,34cyclictest0-21swapper/123:40:581
680996847,17cyclictest0-21swapper/022:55:270
680996841,23cyclictest0-21swapper/022:22:180
680996840,21cyclictest0-21swapper/021:20:270
680996831,31cyclictest20924-21aten2.4-expect20:05:120
680996830,32cyclictest4808-21grep23:50:170
680996829,30cyclictest7833-21latency_hist22:00:020
680996826,35cyclictest0-21swapper/022:50:020
680996826,34cyclictest23427-21runrttasks22:26:470
680996826,21cyclictest17797-21irqstats23:15:190
680996812,47cyclictest0-21swapper/023:00:150
3273526818,38sleep00-21swapper/019:06:210
681996716,36cyclictest0-21swapper/123:24:591
681996714,35cyclictest0-21swapper/120:59:591
680996732,8cyclictest2378-21ssh21:50:100
680996729,9cyclictest24743-21ssh23:27:540
680996728,31cyclictest8359-21cpu19:30:130
680996724,37cyclictest29760-21head00:35:150
680996723,28cyclictest0-21swapper/000:19:270
680996713,36cyclictest0-21swapper/023:45:160
681996620,29cyclictest0-21swapper/121:05:591
681996618,32cyclictest0-21swapper/119:40:001
681996617,31cyclictest0-21swapper/121:32:591
681996616,31cyclictest0-21swapper/120:15:591
681996614,35cyclictest0-21swapper/122:11:591
681996614,34cyclictest0-21swapper/122:27:581
681996614,34cyclictest0-21swapper/100:00:581
681996614,31cyclictest0-21swapper/121:22:001
68099666,53cyclictest0-21swapper/022:15:000
680996656,6cyclictest299082sleep022:39:580
680996628,31cyclictest29156-21aten_r1power_en21:40:120
680996627,8cyclictest27198-21ssh00:30:200
680996627,32cyclictest28120-21aten_r1power_fr20:25:120
680996626,34cyclictest31745-21ssh23:40:210
680996624,36cyclictest26121-21ssh21:34:570
681996520,32cyclictest0-21swapper/119:30:001
681996517,32cyclictest0-21swapper/122:22:591
681996517,31cyclictest0-21swapper/119:51:001
681996516,32cyclictest0-21swapper/122:36:581
681996516,31cyclictest0-21swapper/120:03:011
680996539,20cyclictest0-21swapper/022:43:270
680996532,27cyclictest23908-21aten2.4-expect00:25:130
680996532,27cyclictest17380-21munin-node22:15:270
680996527,21cyclictest16324-21ssh00:10:240
680996526,30cyclictest0-21swapper/022:30:180
680996525,34cyclictest1271-21ksmtuned20:46:420
680996525,34cyclictest11262-21rm00:00:470
228699650,3rtkit-daemon14422-21ssh00:07:041
681996416,34cyclictest0-21swapper/120:07:591
681996415,32cyclictest0-21swapper/122:02:591
681996412,34cyclictest0-21swapper/120:21:011
681996411,34cyclictest0-21swapper/121:41:591
680996436,22cyclictest11862-21diskmemload22:01:450
680996431,27cyclictest21868-21unixbench_singl21:25:260
680996431,27cyclictest21868-21unixbench_singl21:25:260
680996431,25cyclictest12808-21ssh00:05:120
680996426,31cyclictest29944-21aten2.4-expect20:30:120
680996424,34cyclictest30470-21ssh23:38:320
680996421,35cyclictest0-21swapper/023:57:250
680996421,35cyclictest0-21swapper/023:57:240
680996420,24cyclictest23084-21ssh00:23:170
680996419,38cyclictest0-21swapper/019:15:210
68199637,42cyclictest0-21swapper/100:16:591
681996317,34cyclictest0-21swapper/120:45:001
681996317,30cyclictest0-21swapper/122:53:591
680996319,38cyclictest0-21swapper/019:25:200
68199626,41cyclictest0-21swapper/120:29:591
681996216,33cyclictest0-21swapper/119:56:001
681996215,32cyclictest0-21swapper/119:25:011
83852616,15sleep10-21swapper/121:00:131
681996116,31cyclictest0-21swapper/120:39:591
681996115,33cyclictest0-21swapper/119:49:001
681996115,33cyclictest0-21swapper/119:33:001
681996113,32cyclictest0-21swapper/100:22:581
681996112,32cyclictest0-21swapper/121:55:591
680996131,8cyclictest31659-21munin-node20:35:190
680996127,28cyclictest6431-21ls20:55:000
681996016,33cyclictest0-21swapper/120:53:001
681996016,32cyclictest0-21swapper/122:30:591
681996015,34cyclictest0-21swapper/119:16:001
681996014,32cyclictest0-21swapper/123:04:581
681996014,31cyclictest0-21swapper/121:52:591
681996010,31cyclictest0-21swapper/100:35:581
680996035,18cyclictest0-21swapper/020:55:210
680996028,9cyclictest12612-21latency21:10:170
229502605,15sleep10-21swapper/121:28:531
229502605,15sleep10-21swapper/121:28:521
681995917,31cyclictest0-21swapper/121:46:001
68099596,46cyclictest0-21swapper/019:20:140
680995929,24cyclictest12402-21munin-node19:40:180
680995928,8cyclictest2242-21grep20:40:250
680995922,31cyclictest10152-21aten2.4-expect19:35:130
68099586,44cyclictest0-21swapper/019:45:210
68099586,35cyclictest0-21swapper/019:55:010
680995824,23cyclictest11865-21munin-run21:10:000
64022584,12sleep10-21swapper/123:53:081
681995714,28cyclictest0-21swapper/120:12:001
680995727,8cyclictest9501-21munin-node21:00:270
680995716,34cyclictest0-21swapper/020:20:220
681995615,29cyclictest0-21swapper/100:27:581
681995615,27cyclictest0-21swapper/120:34:011
681995614,31cyclictest0-21swapper/123:48:591
681995614,29cyclictest0-21swapper/100:10:591
680995627,23cyclictest19624-21memory20:00:190
680995623,8cyclictest1568-21runrttasks20:11:490
681995515,26cyclictest0-21swapper/121:37:001
240992554,12sleep10-21swapper/123:25:421
268782544,12sleep10-21swapper/123:30:441
68199535,42cyclictest0-21swapper/122:19:391
290292514,11sleep10-21swapper/100:34:381
681994814,24cyclictest0-21swapper/123:59:581
681994814,24cyclictest0-21swapper/123:59:581
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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