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2024-04-26 - 00:59
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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 Thu Apr 25, 2024 12:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3126721308,92sleep231327-21grep07:00:532
3126721308,92sleep231327-21grep07:00:532
3213899952,53cyclictest19473-21apt-get09:25:301
32138999315,53cyclictest28494-21apt-get09:40:581
32138999315,53cyclictest28494-21apt-get09:40:581
32138999166,16cyclictest22148-21idleruntime-cro11:20:101
32138999114,60cyclictest0-21swapper/109:55:521
32155998337,27cyclictest141rcu_preempt08:40:313
32155998337,27cyclictest141rcu_preempt08:40:313
32138998259,14cyclictest25290-21latency_hist09:35:131
32155997837,20cyclictest19512-21kworker/u8:409:34:113
32155997830,9cyclictest141rcu_preempt11:55:133
32146997853,16cyclictest19920-21fschecks_time12:10:352
99052760,6sleep20-21swapper/209:10:132
32146997659,11cyclictest22744-21sendmail08:15:102
3213899762,12cyclictest7637-21cut11:50:131
3213899754,60cyclictest16644-21ssh10:15:221
3213899754,10cyclictest16265-21apt-get09:20:201
3142927524,24sleep10-21swapper/107:00:561
3142927524,24sleep10-21swapper/107:00:561
32155997445,7cyclictest141rcu_preempt08:50:123
3215599742,33cyclictest141rcu_preempt09:10:513
32146997455,13cyclictest26494-21unixbench_multi11:25:492
32146997455,13cyclictest26494-21unixbench_multi11:25:492
32146997437,10cyclictest141rcu_preempt07:25:312
32123997440,10cyclictest141rcu_preempt08:10:140
3213899734,58cyclictest1903-21apt-get11:40:221
3213899733,60cyclictest16406-21ssh11:10:241
3213899732,9cyclictest2702-21timerwakeupswit08:50:451
32138997325,39cyclictest10817-21ssh11:55:261
32138997325,39cyclictest10817-21ssh11:55:261
32155997247,17cyclictest1589-21munin-plugin-st11:40:103
32155997239,11cyclictest347-21in:imklog10:33:233
32155997234,8cyclictest141rcu_preempt10:55:523
3213899724,60cyclictest0-21swapper/109:11:091
3213899723,59cyclictest25746-21fschecks_count11:25:321
3213899723,59cyclictest25746-21fschecks_count11:25:321
3213899722,15cyclictest31317-21apt-get12:30:201
32155997148,13cyclictest10053-21wc09:10:143
32155997129,15cyclictest141rcu_preempt09:40:123
32146997112,22cyclictest33-21ksoftirqd/210:10:142
3213899714,57cyclictest0-21swapper/111:05:221
32138997144,15cyclictest0-21swapper/108:55:541
32138997138,18cyclictest25-21ksoftirqd/110:30:251
3213899713,60cyclictest26482-21grep09:35:491
3213899713,13cyclictest18124-21apt-get08:00:191
3213899712,13cyclictest23493-21/usr/sbin/munin12:15:511
32138997110,35cyclictest13315-21apt-get12:00:371
32155997045,15cyclictest25975-21idleruntime-cro08:25:103
32155997034,8cyclictest141rcu_preempt11:45:313
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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