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2025-12-01 - 21:27
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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 Mon Dec 01, 2025 12:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
43072316284,20sleep10-21swapper/107:07:241
43492269238,20sleep00-21swapper/007:07:550
44142265233,20sleep30-21swapper/307:08:463
41862264231,20sleep20-21swapper/207:05:482
90672630,0sleep00-21swapper/010:14:150
144892620,0sleep014490-21sendmail_mailqu12:00:180
76902600,0sleep00-21swapper/007:15:110
52132550,0sleep10-21swapper/111:26:431
112962540,0sleep20-21swapper/210:40:202
12792180,0sleep20-21swapper/211:49:552
6962160,0sleep00-21swapper/010:07:180
26752140,0sleep20-21swapper/210:33:512
461999138,4cyclictest12-21ksoftirqd/010:20:010
72922120,0sleep20-21swapper/210:12:202
462199119,1cyclictest22-21ksoftirqd/111:35:001
37692110,1sleep33774-21unixbench_multi11:25:213
462199108,1cyclictest22-21ksoftirqd/107:15:011
42792100,1sleep20-21swapper/211:00:172
42792100,1sleep20-21swapper/211:00:172
220062100,0sleep30-21swapper/310:48:373
46299994,3cyclictest19982-21systemd-journal10:01:253
46259995,3cyclictest508-21dbus-daemon09:10:002
46259994,3cyclictest19982-21systemd-journal08:04:112
46259993,3cyclictest2419-21apt12:15:002
46199997,1cyclictest121ksoftirqd/011:50:000
46199994,3cyclictest19982-21systemd-journal11:58:140
46299984,3cyclictest19982-21systemd-journal12:28:113
46299984,3cyclictest14106-21memory12:00:153
46299980,1cyclictest14871-21sh11:09:313
46259985,2cyclictest28-21ksoftirqd/212:20:002
46259984,3cyclictest19982-21systemd-journal11:14:112
46259984,3cyclictest19982-21systemd-journal10:05:012
46259983,3cyclictest19982-21systemd-journal12:21:132
46259983,3cyclictest19982-21systemd-journal08:59:142
46259983,3cyclictest19982-21systemd-journal07:28:432
46259982,3cyclictest25411-21ls07:55:002
46259980,4cyclictest19982-21systemd-journal12:35:002
46219984,3cyclictest6405-21cat09:20:151
46219983,3cyclictest19982-21systemd-journal09:50:081
46219982,3cyclictest32265-21munin-run12:35:001
46219982,3cyclictest2410-21munin-run12:15:011
46219982,3cyclictest10916-21apt-get08:35:001
46199985,2cyclictest11736-21in:imuxsock12:10:440
46199984,3cyclictest7051-21df_inode08:25:130
46199983,3cyclictest19982-21systemd-journal12:32:250
46199983,3cyclictest19982-21systemd-journal10:52:120
46199982,3cyclictest15330-21perf11:10:010
31324280,0sleep10-21swapper/109:40:201
16879280,0sleep10-21swapper/109:29:341
11522280,0sleep00-21swapper/011:31:310
46299976,1cyclictest51850irq/136-enp4s0-10:50:113
46299974,2cyclictest508-21dbus-daemon12:37:273
46299974,2cyclictest30654-21snmpd12:11:393
46299974,2cyclictest11078-21gunzip07:20:183
46299973,3cyclictest508-21dbus-daemon12:10:003
46299973,3cyclictest508-21dbus-daemon07:15:013
46299973,3cyclictest30904-21wc09:40:173
46299973,3cyclictest19982-21systemd-journal11:51:023
46299973,3cyclictest12598-21sshd10:16:043
46299973,1cyclictest0-21swapper/311:02:553
46299973,1cyclictest0-21swapper/311:02:553
46299973,1cyclictest0-21swapper/310:40:483
46299972,3cyclictest19982-21systemd-journal10:20:523
46299972,3cyclictest19982-21systemd-journal08:12:073
46299972,2cyclictest34-21ksoftirqd/307:50:003
46299970,5cyclictest19982-21systemd-journal10:55:543
46299970,1cyclictest30869-21ssh09:13:263
46259976,1cyclictest28-21ksoftirqd/210:10:012
46259976,1cyclictest28-21ksoftirqd/208:40:002
46259974,2cyclictest29741-11brltty12:05:192
46259974,2cyclictest28-21ksoftirqd/208:00:012
46259974,2cyclictest19982-21systemd-journal09:56:492
46259973,3cyclictest5203-21cron09:20:002
46259973,3cyclictest0-21swapper/209:22:372
46259973,1cyclictest0-21swapper/209:53:472
46259973,1cyclictest0-21swapper/209:36:332
46259972,3cyclictest19982-21systemd-journal10:51:012
46259972,3cyclictest19982-21systemd-journal09:29:582
46259971,4cyclictest19982-21systemd-journal11:25:172
46219976,1cyclictest22-21ksoftirqd/111:40:001
46219974,2cyclictest29878-21cron08:05:001
46219974,2cyclictest19119-21sshd10:20:491
46219974,2cyclictest1-21systemd11:44:021
46219974,2cyclictest11736-21in:imuxsock07:54:591
46219973,3cyclictest22-21ksoftirqd/112:15:001
46219973,3cyclictest19982-21systemd-journal11:17:461
46219973,3cyclictest19982-21systemd-journal08:15:001
46219973,2cyclictest19982-21systemd-journal08:55:371
46219973,2cyclictest19982-21systemd-journal08:53:241
46219973,1cyclictest0-21swapper/109:36:531
46219973,1cyclictest0-21swapper/109:31:231
46219972,4cyclictest22-21ksoftirqd/108:20:501
46219972,4cyclictest0-21swapper/110:29:221
46219972,3cyclictest7661-21lldpd08:25:061
46219972,3cyclictest19982-21systemd-journal10:10:041
46219972,2cyclictest25250-21perf12:30:001
46219971,1cyclictest141rcu_preempt07:30:131
46219970,4cyclictest27536-21expr09:10:121
46219970,1cyclictest141rcu_preempt08:35:151
46199976,1cyclictest12-21ksoftirqd/011:10:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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