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2026-05-08 - 16:40
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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 Fri May 08, 2026 12:44:21)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
211142296270,16sleep20-21swapper/207:07:282
210742272240,21sleep00-21swapper/007:06:580
212082266235,21sleep30-21swapper/307:08:423
193512261229,21sleep10-21swapper/107:05:021
252712630,0sleep00-21swapper/011:13:320
49522550,0sleep20-21swapper/212:37:102
35702180,0sleep00-21swapper/011:57:560
194412180,0sleep20-21swapper/209:14:332
132852130,0sleep30-21swapper/310:46:443
154742120,0sleep00-21swapper/010:10:010
183712110,0sleep30-21swapper/310:11:013
214299995,1cyclictest30966-21tr10:00:022
5793280,0sleep10-21swapper/110:42:261
27506280,0sleep10-21swapper/111:52:541
23523280,0sleep00-21swapper/011:31:020
214339981,2cyclictest6196-21apt-get09:45:113
214299984,3cyclictest275-21systemd-journal11:45:142
214299982,3cyclictest14124-21dump-pmu-power09:50:012
214249984,3cyclictest275-21systemd-journal07:15:011
214249984,2cyclictest275-21systemd-journal08:42:141
214249980,5cyclictest11604-21diskmemload11:28:201
20615280,0sleep20-21swapper/212:08:072
19293280,0sleep00-21swapper/011:48:150
14570280,0sleep20-21swapper/211:06:462
5557270,1sleep25488-21ssh11:40:122
29477270,0sleep30-21swapper/311:54:233
214339974,2cyclictest658-21snmpd11:59:533
214339974,2cyclictest5301-21ls07:45:013
214339973,3cyclictest658-21snmpd12:08:133
214339973,3cyclictest658-21snmpd08:50:033
214339973,3cyclictest658-21snmpd08:47:193
214339973,3cyclictest275-21systemd-journal12:35:543
214339973,3cyclictest275-21systemd-journal09:55:013
214339973,3cyclictest275-21systemd-journal09:40:153
214339973,2cyclictest275-21systemd-journal09:19:033
214299973,3cyclictest658-21snmpd08:36:532
214299973,3cyclictest658-21snmpd08:31:242
214299973,3cyclictest658-21snmpd08:25:212
214299973,3cyclictest28855-21sshd09:20:092
214299972,3cyclictest658-21snmpd10:52:192
214299970,5cyclictest733-21munin-run07:35:012
214249973,3cyclictest658-21snmpd08:59:571
214249973,3cyclictest275-21systemd-journal12:19:431
214249973,3cyclictest275-21systemd-journal09:25:121
214249973,3cyclictest275-21systemd-journal09:18:371
214249972,3cyclictest275-21systemd-journal07:55:001
214249971,1cyclictest141rcu_preempt11:05:111
214249970,4cyclictest11604-21diskmemload10:31:561
214249970,4cyclictest11604-21diskmemload09:36:361
214249970,3cyclictest317132sh10:19:461
214249970,2cyclictest690-21sshd07:34:511
214199976,1cyclictest12-21ksoftirqd/012:05:000
214199974,2cyclictest28638-21sshd08:35:020
214199973,3cyclictest5093-11brltty10:27:560
214199973,3cyclictest275-21systemd-journal11:06:160
214199973,1cyclictest9374-21turbostat09:05:000
19526270,0sleep20-21swapper/208:15:152
214339966,0cyclictest0-21swapper/311:11:093
214339966,0cyclictest0-21swapper/307:45:133
214339963,2cyclictest9557-21ssh10:05:403
214339963,2cyclictest663-21runrttasks10:40:553
214339963,2cyclictest504-21dbus-daemon11:05:523
214339963,2cyclictest504-21dbus-daemon08:20:183
214339963,2cyclictest501-21in:imuxsock11:30:523
214339963,2cyclictest29882-21grep08:35:193
214339963,2cyclictest2921-21diskstats11:00:133
214339963,2cyclictest275-21systemd-journal11:45:423
214339963,2cyclictest275-21systemd-journal11:40:143
214339963,2cyclictest26519-21rt-features10:35:183
214339963,2cyclictest26171-21smart_sda12:30:173
214339963,2cyclictest26116-21rm10:15:303
214339963,2cyclictest23514-21ssh09:35:193
214339963,2cyclictest1550-21ssh11:18:473
214339963,2cyclictest0-21swapper/307:35:143
214339963,1cyclictest0-21swapper/312:22:133
214339962,3cyclictest9586-21grep10:25:163
214339962,3cyclictest7631-21expr09:00:103
214339962,3cyclictest658-21snmpd10:32:093
214339962,3cyclictest658-21snmpd09:56:113
214339962,3cyclictest658-21snmpd09:10:273
214339962,3cyclictest658-21snmpd08:15:143
214339962,3cyclictest504-21dbus-daemon09:00:003
214339962,3cyclictest30859-21kworker/3:112:00:113
214339962,3cyclictest30267-21cut11:35:153
214339962,3cyclictest275-21systemd-journal10:55:263
214339962,3cyclictest21866-21cat07:10:113
214339962,3cyclictest14281-21cat09:30:133
214339962,3cyclictest12653-21tune2fs08:00:133
214339962,2cyclictest275-21systemd-journal07:18:233
214339962,1cyclictest0-21swapper/311:20:043
214339961,3cyclictest275-21systemd-journal12:10:513
214339960,3cyclictest32496-21ntp_states10:00:173
214339960,2cyclictest4868-21cp09:25:003
214339960,2cyclictest13040-21missed_timers11:25:153
214339960,0cyclictest0-21swapper/312:26:043
214339960,0cyclictest0-21swapper/310:51:033
214339960,0cyclictest0-21swapper/310:21:583
214339960,0cyclictest0-21swapper/309:20:433
214299966,0cyclictest0-21swapper/211:55:172
214299963,2cyclictest9134-21ssh10:05:222
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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