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2026-05-17 - 17:18
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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 Sun May 17, 2026 12:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
13332291259,22sleep10-21swapper/107:06:131
13592282252,19sleep20-21swapper/207:06:342
16182273241,21sleep30-21swapper/307:09:373
16102271240,21sleep00-21swapper/007:09:300
6472600,0sleep00-21swapper/010:33:180
269002600,0sleep20-21swapper/209:10:192
172062580,0sleep20-21swapper/212:00:412
318582570,0sleep20-21swapper/211:30:222
282532560,0sleep30-21swapper/311:48:293
180612560,0sleep10-21swapper/111:41:571
120712550,0sleep00-21swapper/011:00:010
303272540,0sleep20-21swapper/211:50:002
261292190,0sleep10-21swapper/109:30:121
312242140,0sleep30-21swapper/310:12:233
211472140,0sleep00-21swapper/011:05:130
272552130,0sleep30-21swapper/310:30:013
17779994,3cyclictest275-21systemd-journal12:22:582
17749990,8cyclictest21756-21ssh10:06:281
4391280,0sleep30-21swapper/308:24:553
17829987,1cyclictest34-21ksoftirqd/307:15:013
17829983,3cyclictest275-21systemd-journal08:30:013
17749984,3cyclictest31147-21ntpq11:30:171
17749980,1cyclictest0-21swapper/109:15:131
17719984,3cyclictest17753-21munin-run08:55:000
17719983,2cyclictest275-21systemd-journal10:50:530
1517280,0sleep20-21swapper/209:54:562
29834270,0sleep20-21swapper/210:30:482
17829975,2cyclictest34-21ksoftirqd/311:20:013
17829973,3cyclictest4707-21smart_sda10:35:183
17829973,3cyclictest275-21systemd-journal11:39:573
17829973,2cyclictest275-21systemd-journal12:10:043
17829973,1cyclictest0-21swapper/310:59:443
17779973,3cyclictest658-21snmpd07:41:242
17779973,3cyclictest504-21dbus-daemon07:20:062
17779973,3cyclictest504-21dbus-daemon07:20:062
17779970,5cyclictest31088-21ls12:10:002
17779970,4cyclictest4407-21cron08:25:002
17749974,2cyclictest501-21in:imuxsock08:05:121
17749974,2cyclictest23047-21sshd12:05:021
17749973,3cyclictest28378-21memory10:30:161
17749973,2cyclictest304-21systemd-udevd11:25:351
17749973,1cyclictest0-21swapper/111:12:161
17749972,3cyclictest275-21systemd-journal09:35:571
17749970,4cyclictest21349-21munin-run11:25:011
17719975,2cyclictest12-21ksoftirqd/012:20:000
17719975,1cyclictest1284-21ssh11:31:480
17719973,3cyclictest658-21snmpd10:44:570
17719973,3cyclictest658-21snmpd10:27:240
17719973,3cyclictest658-21snmpd07:15:030
17719970,1cyclictest23822-21ssh11:25:320
14670270,0sleep20-21swapper/212:39:052
17829963,3cyclictest21831-21apt-get11:25:123
17829963,2cyclictest9894-21ssh10:19:313
17829963,2cyclictest8589-21taskset12:35:133
17829963,2cyclictest8433-21ntpq12:15:163
17829963,2cyclictest658-21snmpd09:29:303
17829963,2cyclictest658-21snmpd07:50:123
17829963,2cyclictest6517-21ssh09:57:273
17829963,2cyclictest504-21dbus-daemon08:40:003
17829963,2cyclictest31681-21rm11:10:443
17829963,2cyclictest29640-21ssh09:51:383
17829963,2cyclictest28673-21ssh09:11:403
17829963,2cyclictest28017-21sh09:30:413
17829963,2cyclictest27573-21ssh12:26:423
17829963,2cyclictest26545-21grep08:00:193
17829963,2cyclictest17653-21/usr/sbin/munin07:40:213
17829963,2cyclictest16050-21ssh10:22:513
17829963,2cyclictest13862-21ssh10:40:453
17829963,2cyclictest0-21swapper/311:00:153
17829963,1cyclictest0-21swapper/311:41:163
17829962,3cyclictest658-21snmpd11:51:053
17829962,3cyclictest658-21snmpd09:21:453
17829962,3cyclictest658-21snmpd09:21:443
17829962,3cyclictest658-21snmpd09:16:143
17829962,3cyclictest658-21snmpd09:05:113
17829962,3cyclictest658-21snmpd08:58:053
17829962,3cyclictest658-21snmpd07:35:183
17829962,3cyclictest658-21snmpd07:33:093
17829962,3cyclictest658-21snmpd07:29:393
17829962,3cyclictest504-21dbus-daemon11:55:003
17829962,3cyclictest2419-21cat09:35:153
17829962,3cyclictest23345-21cat12:05:103
17829962,3cyclictest17626-21sed12:20:203
17829962,3cyclictest16449-21cat12:00:193
17829962,3cyclictest10634-21cat09:40:163
17829962,2cyclictest6542-21sshd08:29:183
17829962,1cyclictest0-21swapper/312:30:483
17829962,1cyclictest0-21swapper/310:00:073
17829961,4cyclictest27484-21/usr/sbin/munin10:30:113
17829960,6cyclictest0-21swapper/309:47:323
17829960,5cyclictest18998-21forks10:05:133
17829960,0cyclictest0-21swapper/311:31:563
17779966,0cyclictest0-21swapper/209:56:182
17779965,1cyclictest28-21ksoftirqd/212:20:002
17779963,2cyclictest997-21ssh10:53:042
17779963,2cyclictest916-21ssh11:12:002
17779963,2cyclictest658-21snmpd09:26:092
17779963,2cyclictest658-21snmpd08:09:012
17779963,2cyclictest501-21in:imuxsock08:45:002
17779963,2cyclictest2152-21fschecks_count09:35:142
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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