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2025-07-14 - 22:49
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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
Characteristics of the 100 highest latencies:
System rackcslot2.osadl.org (updated Mon Jul 14, 2025 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3176527251,8sleep00-21swapper/007:04:300
3183126847,17sleep10-21swapper/107:05:131
144672680,0sleep10-21swapper/110:29:431
181962530,0sleep10-21swapper/111:58:071
3225399291,24cyclictest0-21swapper/112:16:281
32252992927,1cyclictest556-21ssh12:18:300
32252992910,14cyclictest0-21swapper/010:33:300
32253992810,0cyclictest0-21swapper/109:51:221
32252992828,0cyclictest0-21swapper/012:30:460
32252992827,0cyclictest7-21ksoftirqd/009:27:340
32252992725,1cyclictest7-21ksoftirqd/007:22:590
32252992710,8cyclictest0-21swapper/011:33:350
32252992624,1cyclictest7-21ksoftirqd/012:33:040
32252992624,1cyclictest7-21ksoftirqd/011:00:200
32252992620,5cyclictest9741-21apache210:20:400
32252992610,3cyclictest0-21swapper/012:00:390
32253992523,1cyclictest12915-21ssh11:52:341
3225399251,24cyclictest0-21swapper/112:17:441
32253992510,9cyclictest0-21swapper/109:53:541
3225299255,4cyclictest91rcu_preempt09:36:210
3225299254,7cyclictest91rcu_preempt09:22:180
32252992523,1cyclictest0-21swapper/010:53:570
32252992520,1cyclictest7-21ksoftirqd/012:24:330
32252992510,3cyclictest0-21swapper/009:08:520
32252992510,0cyclictest0-21swapper/012:04:340
3225299250,13cyclictest8316-21apache_volume10:22:590
32253992424,0cyclictest0-21swapper/109:16:081
32253992417,4cyclictest0-21swapper/109:28:001
32253992411,12cyclictest0-21swapper/109:09:101
32253992410,7cyclictest0-21swapper/109:43:001
32253992410,1cyclictest0-21swapper/111:41:401
3225399240,19cyclictest0-21swapper/111:30:411
32252992421,2cyclictest7-21ksoftirqd/009:46:270
3225299242,12cyclictest0-21swapper/010:05:170
683022310,1sleep10-21swapper/111:43:051
3225399236,6cyclictest0-21swapper/108:27:581
3225399235,11cyclictest26371-21idleruntime-cro11:27:441
3225399235,11cyclictest26371-21idleruntime-cro11:27:441
32253992323,0cyclictest0-21swapper/110:01:031
32253992322,1cyclictest0-21swapper/110:14:171
32253992318,4cyclictest9761-21apache208:38:041
3225399231,14cyclictest9710-21apache207:32:591
32253992310,2cyclictest0-21swapper/108:47:581
3225299234,10cyclictest0-21swapper/011:23:070
3225299234,10cyclictest0-21swapper/011:23:070
32252992322,1cyclictest0-21swapper/009:05:130
32252992322,1cyclictest0-21swapper/008:34:520
32252992321,1cyclictest7-21ksoftirqd/011:52:390
32252992317,1cyclictest7-21ksoftirqd/012:08:050
32252992310,6cyclictest0-21swapper/010:28:380
32252992310,3cyclictest0-21swapper/011:11:550
1625322310,0sleep00-21swapper/011:57:030
79202220,4sleep081ktimersoftd/011:44:480
3225399228,9cyclictest0-21swapper/112:10:331
32253992218,3cyclictest9741-21apache212:28:071
32253992218,3cyclictest9741-21apache210:07:471
32253992216,3cyclictest717-21snmpd12:05:141
32253992210,8cyclictest0-21swapper/109:37:551
32253992210,5cyclictest0-21swapper/110:41:281
32252992222,0cyclictest0-21swapper/011:06:160
32252992221,0cyclictest7-21ksoftirqd/009:53:050
32252992217,2cyclictest7-21ksoftirqd/010:41:530
32252992216,5cyclictest9741-21apache211:42:180
3225299221,1cyclictest91rcu_preempt10:50:160
3225299221,17cyclictest0-21swapper/011:12:520
32252992210,6cyclictest0-21swapper/007:30:540
32252992210,5cyclictest0-21swapper/009:12:530
3225299220,1cyclictest91rcu_preempt10:42:560
509422110,2sleep10-21swapper/112:24:581
3225399215,8cyclictest636-21nscd10:24:191
32253992116,2cyclictest0-21swapper/111:12:271
32253992113,3cyclictest13835-21diskmemload10:06:281
32253992110,7cyclictest0-21swapper/109:27:351
32253992110,6cyclictest0-21swapper/107:38:071
32253992110,4cyclictest0-21swapper/107:07:541
32253992110,3cyclictest0-21swapper/111:22:221
3225299212,4cyclictest91rcu_preempt08:17:560
32252992115,4cyclictest7-21ksoftirqd/011:22:120
32252992113,5cyclictest7-21ksoftirqd/009:41:010
32252992110,4cyclictest0-21swapper/012:13:030
32252992110,4cyclictest0-21swapper/008:48:050
3225299210,10cyclictest10012-21munin-run08:57:440
2857522110,0sleep10-21swapper/108:19:311
2278922110,2sleep00-21swapper/009:58:240
3225399208,7cyclictest636-21nscd10:52:591
3225399204,9cyclictest0-21swapper/109:18:051
32253992010,4cyclictest0-21swapper/112:32:571
32252992016,3cyclictest7-21ksoftirqd/009:51:550
32252992015,1cyclictest7-21ksoftirqd/010:16:060
32252992013,6cyclictest9741-21apache208:47:190
3055322010,0sleep10-21swapper/110:50:491
369321910,0sleep10-21swapper/109:34:291
32253991919,0cyclictest0-21swapper/110:58:291
32253991917,1cyclictest9761-21apache211:53:181
32253991910,4cyclictest0-21swapper/110:17:551
32253991910,4cyclictest0-21swapper/107:47:561
32253991910,4cyclictest0-21swapper/107:27:581
32253991910,3cyclictest0-21swapper/111:07:211
32253991910,2cyclictest0-21swapper/108:54:351
32253991910,0cyclictest0-21swapper/111:32:591
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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