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2026-03-28 - 23:03
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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 100 highest latencies:
System rackaslot8.osadl.org (updated Sat Mar 28, 2026 12:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
135902323294,19sleep20-21swapper/207:05:302
136082275220,17sleep00-21swapper/007:05:440
138592265234,21sleep10-21swapper/107:08:591
136742262231,20sleep30-21swapper/307:06:363
3114021000,0sleep20-21swapper/209:45:202
190012670,0sleep30-21swapper/311:54:463
288622660,0sleep10-21swapper/108:50:211
292282600,0sleep00-21swapper/010:04:280
287042600,2sleep012-21ksoftirqd/009:44:350
208162560,0sleep20-21swapper/209:20:122
89152550,0sleep20-21swapper/208:05:212
118692550,1sleep211864-21cron09:15:002
64492540,0sleep10-21swapper/109:10:461
6172540,0sleep00-21swapper/010:06:000
237322540,0sleep20-21swapper/210:20:162
231312510,0sleep20-21swapper/210:39:292
274852200,0sleep10-21swapper/110:41:251
68742180,0sleep20-21swapper/211:08:122
266812180,0sleep10-21swapper/109:23:401
247022180,0sleep10-21swapper/109:41:291
153662180,0sleep30-21swapper/309:35:433
277722160,0sleep20-21swapper/208:50:132
234552160,0sleep20-21swapper/210:58:552
60412150,0sleep00-21swapper/011:07:340
201392150,0sleep20-21swapper/212:14:432
132882150,0sleep20-21swapper/210:52:312
157472140,0sleep20-21swapper/210:15:162
117682140,0sleep00-21swapper/012:09:410
107882140,0sleep30-21swapper/309:52:583
79012130,0sleep20-21swapper/209:31:212
215712130,0sleep10-21swapper/112:34:521
162802110,0sleep20-21swapper/211:52:412
140529995,3cyclictest10578-21apt-get11:30:123
140479993,4cyclictest23548-21basename07:30:002
31351280,5sleep00-21swapper/007:45:130
28766280,0sleep30-21swapper/309:25:063
140529984,3cyclictest658-21snmpd09:47:183
140529984,2cyclictest275-21systemd-journal07:30:183
140529983,3cyclictest275-21systemd-journal11:55:013
140399986,1cyclictest28059-21cron07:40:000
6884270,0sleep10-21swapper/112:25:191
350270,0sleep20-21swapper/211:43:162
16490270,0sleep10-21swapper/108:25:101
140529975,2cyclictest34-21ksoftirqd/312:30:003
140529974,2cyclictest50850irq/136-enp4s0-10:05:113
140529973,3cyclictest23928-21sed12:35:213
140529973,3cyclictest23928-21sed12:35:213
140529973,3cyclictest1504-21sshd10:25:423
140479975,1cyclictest28-21ksoftirqd/210:10:012
140479973,3cyclictest658-21snmpd11:22:302
140479973,3cyclictest504-21dbus-daemon11:35:002
140479970,4cyclictest1-21systemd10:00:012
140439973,3cyclictest275-21systemd-journal11:45:531
140439972,3cyclictest275-21systemd-journal11:10:571
140439970,3cyclictest21053-21rm12:15:141
140399973,3cyclictest658-21snmpd11:13:210
140399973,3cyclictest275-21systemd-journal11:43:220
140399973,3cyclictest275-21systemd-journal07:25:000
140399973,3cyclictest27486-21ntpq11:20:170
140399973,3cyclictest23444-21sshd12:35:180
140399973,3cyclictest23444-21sshd12:35:180
140399973,3cyclictest14951-21apt-get10:15:120
140399973,1cyclictest0-21swapper/012:34:270
140399972,1cyclictest141rcu_preempt11:02:470
5045260,0sleep2271rcuc/212:05:142
29492260,0sleep10-21swapper/107:40:181
19650260,0sleep10-21swapper/111:15:201
140529965,1cyclictest28357-21apt-get07:40:113
140529964,1cyclictest9087-21df10:50:133
140529963,2cyclictest9587-21grep08:10:153
140529963,2cyclictest7606-21cat08:05:133
140529963,2cyclictest691-21expr07:50:143
140529963,2cyclictest658-21snmpd10:10:043
140529963,2cyclictest640-21ssh11:43:283
140529963,2cyclictest5933-21timerwakeupswit12:05:193
140529963,2cyclictest501-21in:imuxsock08:40:103
140529963,2cyclictest2961-21sh12:04:183
140529963,2cyclictest28044-21if_enp4s008:50:153
140529963,2cyclictest27748-21ssh11:00:483
140529963,2cyclictest275-21systemd-journal11:47:323
140529963,2cyclictest26940-21ssh11:20:143
140529963,2cyclictest16522-21grep07:15:013
140529963,2cyclictest16329-21cat10:15:183
140529963,2cyclictest14089-21cut12:30:133
140529963,2cyclictest13047-21expr12:10:113
140529963,2cyclictest12786-21ssh11:11:203
140529963,2cyclictest12674-21expr09:15:153
140529963,1cyclictest0-21swapper/310:02:053
140529962,3cyclictest795-21cut10:45:143
140529962,3cyclictest658-21snmpd11:26:453
140529962,3cyclictest658-21snmpd08:49:523
140529962,3cyclictest658-21snmpd08:38:573
140529962,3cyclictest658-21snmpd08:34:363
140529962,3cyclictest658-21snmpd07:46:593
140529962,3cyclictest658-21snmpd07:35:083
140529962,3cyclictest5170-21cat08:00:143
140529962,3cyclictest30425-21ntpq12:20:183
140529962,3cyclictest1966-21grep11:05:153
140529962,3cyclictest17202-21cut10:55:133
140529962,1cyclictest0-21swapper/311:36:323
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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