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2026-05-15 - 19:15
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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 rack1slot1.osadl.org (updated Fri May 15, 2026 12:45:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
131822214176,24sleep00-21swapper/007:05:270
134182200159,27sleep30-21swapper/307:08:323
132802199160,26sleep10-21swapper/107:06:441
132142198158,26sleep20-21swapper/207:05:542
1361899209,11cyclictest0-21swapper/009:35:110
1361899209,11cyclictest0-21swapper/009:35:100
85622190,0sleep10-21swapper/108:05:131
17082180,1sleep121-21ksoftirqd/109:45:131
122892180,1sleep312292-21unixbench-2d10:40:223
13631991612,2cyclictest240-21systemd-journal09:54:592
1363199160,15cyclictest18113-21apt-get10:50:102
1363199150,14cyclictest19288-21apt-get11:35:112
1363199150,14cyclictest16656-21aten_r1power_cu10:05:112
1363199150,14cyclictest0-21swapper/211:00:102
323482140,0sleep10-21swapper/107:45:181
1363199141,12cyclictest9574-21cat11:20:202
1363199141,12cyclictest31904-21/usr/sbin/munin12:35:132
1363199140,13cyclictest16989-21apt-get12:15:122
1363199140,12cyclictest12955-21apt-get08:15:122
1363199131,11cyclictest29328-21fschecks_time07:40:132
1363199131,11cyclictest29328-21fschecks_time07:40:122
1363199131,11cyclictest25273-21hwlatdetect12:25:142
1363199130,12cyclictest6698-21hddtemp_smartct08:00:142
1363199130,12cyclictest29708-21cstates11:05:122
1363199130,12cyclictest22289-21sed08:34:592
1363199130,12cyclictest11624-21ntp_states09:15:182
1363199130,12cyclictest0-21swapper/211:45:202
1363199130,12cyclictest0-21swapper/211:42:212
1363199130,12cyclictest0-21swapper/210:10:162
1363199130,12cyclictest0-21swapper/209:27:502
1363199130,11cyclictest27872-21wc09:35:202
1363199130,11cyclictest27872-21wc09:35:192
1363199130,0cyclictest0-21swapper/210:40:062
1363199121,10cyclictest16870-21apt-get07:15:132
1363199121,10cyclictest0-21swapper/208:50:012
1363199120,12cyclictest0-21swapper/211:58:292
1363199120,12cyclictest0-21swapper/211:26:122
1363199120,12cyclictest0-21swapper/211:10:122
1363199120,12cyclictest0-21swapper/210:20:382
1363199120,12cyclictest0-21swapper/209:11:552
1363199120,11cyclictest12721-21apt-config10:00:002
1363199120,11cyclictest0-21swapper/212:30:092
1363199120,11cyclictest0-21swapper/212:12:292
1363199120,11cyclictest0-21swapper/211:19:282
1363199120,11cyclictest0-21swapper/210:30:472
1363199120,11cyclictest0-21swapper/209:56:542
1363199120,11cyclictest0-21swapper/208:40:142
1363199120,0cyclictest0-21swapper/211:30:182
1363199120,0cyclictest0-21swapper/209:05:142
1363199111,10cyclictest0-21swapper/211:00:002
1363199110,9cyclictest10041-21/usr/sbin/munin12:05:152
1363199110,8cyclictest15575-21ntp_states10:45:172
1363199110,11cyclictest0-21swapper/212:00:142
1363199110,10cyclictest399-21cat10:25:162
1363199110,10cyclictest23527-21ntp_states09:30:172
1363199110,10cyclictest0-21swapper/211:50:252
1363199110,10cyclictest0-21swapper/210:17:592
1363199110,10cyclictest0-21swapper/209:46:292
1363199110,10cyclictest0-21swapper/209:42:062
1363199110,0cyclictest0-21swapper/212:20:292
1363199110,0cyclictest0-21swapper/209:23:082
1363199110,0cyclictest0-21swapper/208:50:122
1361899110,10cyclictest6276-21diskmemload10:20:110
1361899110,10cyclictest32177-1kworker/u9:009:50:010
1363799102,5cyclictest0-21swapper/312:28:493
1363199100,9cyclictest19246-21apt-get07:20:122
1363199100,7cyclictest0-21swapper/210:35:482
1363199100,10cyclictest0-21swapper/208:21:052
1361899103,6cyclictest30275-21perf11:50:000
1361899101,4cyclictest23758-21latency_hist07:30:000
4133290,0sleep30-21swapper/309:47:483
136379990,6cyclictest35-21ksoftirqd/309:15:143
136319997,1cyclictest28-21ksoftirqd/208:35:112
136319990,8cyclictest0-21swapper/208:55:182
136319990,0cyclictest0-21swapper/208:05:142
136189998,1cyclictest9-21ksoftirqd/010:10:130
136379988,0cyclictest693-21runrttasks10:04:113
136379983,1cyclictest29323-21apt-get11:05:113
136379981,5cyclictest6276-21diskmemload10:47:013
136379980,6cyclictest11812-21apt-get11:25:113
136379980,2cyclictest0-21swapper/311:10:103
136319984,3cyclictest61650irq/122-eno107:55:112
136319982,5cyclictest22129-21fschecks_count07:25:142
136319980,7cyclictest18852-21ntp_states08:25:182
136319980,6cyclictest240-21systemd-journal07:40:002
136319980,0cyclictest0-21swapper/207:48:142
136319980,0cyclictest0-21swapper/207:11:542
136279981,3cyclictest0-21swapper/111:35:201
136279980,3cyclictest0-21swapper/111:34:161
136189986,1cyclictest9-21ksoftirqd/008:58:530
136189982,5cyclictest774-21sed07:50:010
136189982,3cyclictest0-21swapper/008:10:090
136189981,6cyclictest20764-21ssh09:26:500
136189980,7cyclictest7608-21ssh12:01:020
136189980,7cyclictest24635-21cstates10:15:120
136189980,7cyclictest0-21swapper/011:40:160
136189980,6cyclictest30151-21/usr/sbin/munin09:40:130
136189980,6cyclictest0-21swapper/012:15:120
136189980,4cyclictest6276-21diskmemload12:35:150
136189980,2cyclictest0-21swapper/007:55:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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