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2025-12-01 - 20:11
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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 50 highest latencies:
System rackbslot7.osadl.org (updated Mon Dec 01, 2025 12:44:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
266319914067,17cyclictest497-21latency_hist12:03:470
2562521379,102sleep00-21swapper/007:04:210
266419912260,10cyclictest0-21swapper/209:39:202
266419911866,45cyclictest30573-21latency_hist07:18:492
266419911866,45cyclictest30573-21latency_hist07:18:492
2618821166,16sleep10-21swapper/107:04:431
266339911232,41cyclictest0-21swapper/108:39:071
266339911232,41cyclictest0-21swapper/108:39:071
266419911055,12cyclictest0-21swapper/212:38:482
266419911055,12cyclictest0-21swapper/212:38:482
266419910854,13cyclictest1-21systemd10:00:452
266419910743,21cyclictest29190-21cut08:53:472
26633991054,92cyclictest5685-21apt-get11:14:491
2622121056,16sleep20-21swapper/207:05:092
266339910433,40cyclictest0-21swapper/109:54:041
26633999828,34cyclictest0-21swapper/110:04:031
26631999466,19cyclictest11343-21latency_hist07:58:480
26631999466,19cyclictest11343-21latency_hist07:58:480
26631999454,21cyclictest4764-21ssh12:09:420
26641999372,13cyclictest7311-21sh10:18:462
26633999362,21cyclictest1598-21diskmemload11:08:481
2664199923,56cyclictest5685-21apt-get11:14:072
26641999048,11cyclictest181rcu_preempt08:19:142
2663399902,51cyclictest28336-21grep07:13:491
2663399902,51cyclictest28336-21grep07:13:491
2663399902,50cyclictest31530-21find07:19:401
26641998961,9cyclictest181rcu_preempt08:04:242
26641998961,9cyclictest181rcu_preempt08:04:242
26633998942,40cyclictest3593-21cpu12:09:021
2663399892,51cyclictest14451-21wc11:29:121
2663399892,51cyclictest14451-21wc11:29:121
26641998863,10cyclictest181rcu_preempt10:29:312
26641998863,10cyclictest181rcu_preempt10:29:312
2663399887,72cyclictest19053-21grep12:34:231
2663399887,72cyclictest19053-21grep12:34:231
2663399882,63cyclictest23915-21apt-get10:48:591
26631998865,9cyclictest181rcu_preempt09:28:470
26631998850,11cyclictest26622-21cyclictest09:19:200
2665199873,37cyclictest4521-21chrt10:13:453
26641998765,12cyclictest0-21swapper/210:54:222
2665199863,70cyclictest24512-21chrt10:49:063
26641998665,15cyclictest12964-21latency_hist08:03:482
26641998665,15cyclictest12964-21latency_hist08:03:482
2664199865,44cyclictest27912-21fschecks_time11:54:072
26633998663,17cyclictest12890-21apt-key08:03:471
26633998663,17cyclictest12890-21apt-key08:03:471
2663399862,52cyclictest1598-21diskmemload11:59:101
26641998563,12cyclictest0-21swapper/211:08:482
26641998557,16cyclictest181rcu_preempt12:25:362
2663399856,45cyclictest0-21swapper/109:37:531
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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