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2026-03-26 - 20:26
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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 all highest latencies:
System rackaslot8.osadl.org (updated Thu Mar 26, 2026 12:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
322552323294,19sleep20-21swapper/207:05:062
15882312280,22sleep10-21swapper/107:07:181
15872275244,20sleep00-21swapper/007:07:170
14912254227,17sleep30-21swapper/307:06:033
273842660,0sleep00-21swapper/010:29:340
266282650,0sleep30-21swapper/310:09:513
287432610,0sleep20-21swapper/211:48:362
188512610,0sleep10-21swapper/107:45:141
276762600,0sleep00-21swapper/010:10:120
232962590,1sleep00-21swapper/012:05:000
32792560,0sleep00-21swapper/010:53:490
312162560,1sleep30-21swapper/310:11:593
314252550,0sleep20-21swapper/210:50:302
146472520,0sleep20-21swapper/212:39:092
157252230,1sleep115691-21ssh12:00:121
61512210,0sleep00-21swapper/011:35:010
97542200,0sleep20-21swapper/211:36:352
95792200,0sleep30-21swapper/309:20:133
297742190,0sleep00-21swapper/009:12:410
40052170,0sleep10-21swapper/111:52:561
289512160,0sleep00-21swapper/011:48:460
158842160,0sleep2271rcuc/212:00:132
88872140,0sleep20-21swapper/208:35:122
68422140,0sleep30-21swapper/308:30:123
275332140,0sleep10-21swapper/109:10:581
183402140,0sleep30-21swapper/309:25:143
1925991311,1cyclictest34-21ksoftirqd/310:40:003
216902120,0sleep10-21swapper/112:23:311
1920991211,1cyclictest28-21ksoftirqd/210:20:002
1920991211,1cyclictest28-21ksoftirqd/210:10:002
127222120,0sleep20-21swapper/209:41:062
192099116,2cyclictest28-21ksoftirqd/207:50:012
192099108,2cyclictest28-21ksoftirqd/210:40:012
192099108,2cyclictest28-21ksoftirqd/209:05:002
192099108,1cyclictest28-21ksoftirqd/207:25:012
192099107,2cyclictest28-21ksoftirqd/210:00:012
192099107,2cyclictest28-21ksoftirqd/209:30:002
192099107,2cyclictest28-21ksoftirqd/207:20:012
8355290,1sleep38356-21sendmail_mailqu07:20:173
19259997,1cyclictest34-21ksoftirqd/307:15:013
19209998,1cyclictest28-21ksoftirqd/212:30:002
19209998,1cyclictest28-21ksoftirqd/208:30:002
19209992,4cyclictest491-21systemd-logind08:17:402
19209992,1cyclictest141rcu_preempt09:15:002
19129994,3cyclictest275-21systemd-journal11:00:450
19129993,3cyclictest10251-21turbostat10:00:010
19129992,4cyclictest26093-21idleruntime-cro09:50:010
4149280,0sleep30-21swapper/311:14:023
19259983,3cyclictest275-21systemd-journal11:50:013
19209987,1cyclictest28-21ksoftirqd/210:45:012
19209987,1cyclictest28-21ksoftirqd/210:35:012
19209987,1cyclictest28-21ksoftirqd/208:55:002
19209987,1cyclictest28-21ksoftirqd/207:45:012
19209987,1cyclictest271rcuc/210:15:012
19209986,2cyclictest28-21ksoftirqd/212:00:012
19209985,2cyclictest658-21snmpd11:31:262
19209985,2cyclictest28-21ksoftirqd/209:10:002
19209985,2cyclictest28-21ksoftirqd/207:35:012
19209985,2cyclictest28-21ksoftirqd/207:15:012
19209983,1cyclictest141rcu_preempt07:25:482
19209982,4cyclictest28-21ksoftirqd/212:15:552
19209982,4cyclictest28-21ksoftirqd/211:14:252
19209982,4cyclictest23592-21cron12:25:002
19209981,5cyclictest28-21ksoftirqd/210:20:152
19209981,5cyclictest28-21ksoftirqd/208:45:132
19209981,5cyclictest28-21ksoftirqd/208:20:162
19209981,3cyclictest28-21ksoftirqd/209:35:382
19179986,1cyclictest9063-21kworker/u8:211:40:201
19129984,2cyclictest275-21systemd-journal09:40:370
19259974,2cyclictest11403-21dump-pmu-power10:20:003
19259973,3cyclictest8597-21grep12:35:133
19259973,3cyclictest658-21snmpd08:53:063
19259973,3cyclictest275-21systemd-journal10:35:003
19259973,2cyclictest275-21systemd-journal11:07:063
19259973,2cyclictest275-21systemd-journal09:03:003
19259973,1cyclictest24504-21diskmemload11:28:073
19259972,3cyclictest275-21systemd-journal08:20:003
19209976,1cyclictest28-21ksoftirqd/211:50:012
19209975,2cyclictest28-21ksoftirqd/209:30:132
19209974,2cyclictest504-21dbus-daemon08:01:182
19209974,1cyclictest28-21ksoftirqd/210:25:142
19209973,3cyclictest28-21ksoftirqd/210:58:372
19209973,2cyclictest275-21systemd-journal12:10:002
19209972,3cyclictest28-21ksoftirqd/212:33:312
19209972,3cyclictest28-21ksoftirqd/212:08:052
19209972,3cyclictest28-21ksoftirqd/211:29:212
19209972,3cyclictest141rcu_preempt11:07:032
19209972,2cyclictest1398-21grep09:15:142
19209971,4cyclictest28-21ksoftirqd/208:30:132
19209971,3cyclictest28-21ksoftirqd/207:50:162
19209970,5cyclictest19753-21perf09:00:002
19179976,1cyclictest22-21ksoftirqd/111:00:011
19179975,2cyclictest22-21ksoftirqd/111:40:011
19179975,2cyclictest22-21ksoftirqd/109:40:001
19179973,3cyclictest658-21snmpd12:12:061
19179973,3cyclictest658-21snmpd10:34:091
19179973,3cyclictest275-21systemd-journal10:05:011
19129973,3cyclictest658-21snmpd12:33:400
19129973,3cyclictest658-21snmpd10:08:210
19129973,3cyclictest504-21dbus-daemon09:38:580
19129973,3cyclictest304-21systemd-udevd11:44:350
19129973,3cyclictest304-21systemd-udevd10:24:360
19129972,3cyclictest304-21systemd-udevd08:47:350
19129971,3cyclictest14165-21grep11:40:010
19129970,5cyclictest13130-21perf11:00:010
9514260,0sleep10-21swapper/108:35:151
31390260,0sleep30-21swapper/311:30:153
19259966,0cyclictest0-21swapper/309:45:003
19259964,1cyclictest15517-21switchtime11:20:183
19259963,2cyclictest658-21snmpd12:30:523
19259963,2cyclictest658-21snmpd10:43:583
19259963,2cyclictest658-21snmpd08:56:483
19259963,2cyclictest6205-21ssh11:35:033
19259963,2cyclictest4851-21entropy07:15:023
19259963,2cyclictest4353-21sh09:55:273
19259963,2cyclictest28361-21ssh12:27:193
19259963,2cyclictest24717-21ssh09:48:583
19259963,2cyclictest24223-21tr07:55:173
19259963,2cyclictest22980-21ssh10:45:243
19259963,2cyclictest21202-21rm12:23:083
19259963,2cyclictest21018-21ssh11:43:593
19259963,2cyclictest20392-21cron07:50:013
19259963,2cyclictest19338-21rm10:24:443
19259963,2cyclictest12233-21cat10:00:193
19259963,2cyclictest11641-21acpi07:30:113
19259963,2cyclictest11426-21ssh11:57:173
19259962,3cyclictest658-21snmpd12:16:093
19259962,3cyclictest658-21snmpd12:11:093
19259962,3cyclictest658-21snmpd12:08:273
19259962,3cyclictest658-21snmpd11:15:223
19259962,3cyclictest658-21snmpd10:26:033
19259962,3cyclictest658-21snmpd09:31:403
19259962,3cyclictest658-21snmpd09:14:183
19259962,3cyclictest658-21snmpd08:40:353
19259962,3cyclictest658-21snmpd08:27:563
19259962,3cyclictest658-21snmpd08:01:043
19259962,3cyclictest658-21snmpd07:40:253
19259962,3cyclictest658-21snmpd07:29:523
19259962,3cyclictest30650-21memory08:10:153
19259962,3cyclictest15860-21sshd11:00:443
19259962,3cyclictest15291-21cron08:50:003
19259962,3cyclictest1500-21sed09:15:153
19259962,1cyclictest0-21swapper/309:50:033
19259961,4cyclictest0-21swapper/310:50:133
19259961,3cyclictest275-21systemd-journal08:35:123
19259960,6cyclictest0-21swapper/310:57:243
19259960,2cyclictest2512-21memory09:35:143
19209966,0cyclictest0-21swapper/209:50:032
19209963,2cyclictest504-21dbus-daemon08:15:002
19209963,1cyclictest28-21ksoftirqd/210:00:122
19209963,1cyclictest28-21ksoftirqd/207:55:172
19209963,1cyclictest141rcu_preempt10:45:202
19209963,1cyclictest141rcu_preempt08:40:142
19209962,3cyclictest18835-21perl09:45:162
19209962,1cyclictest141rcu_preempt11:20:112
19209962,1cyclictest141rcu_preempt11:15:062
19209962,1cyclictest141rcu_preempt11:00:082
19209960,4cyclictest2092-21kworker/2:009:20:112
19209960,4cyclictest14646-21latency07:35:162
19209960,1cyclictest0-21swapper/211:40:132
19179965,1cyclictest51050irq/138-enp4s0-08:34:491
19179963,2cyclictest658-21snmpd11:32:561
19179963,2cyclictest658-21snmpd08:51:181
19179963,2cyclictest658-21snmpd07:52:221
19179963,2cyclictest4444-21apt08:25:121
19179963,2cyclictest2917-21sh12:31:221
19179963,2cyclictest25440-21sh11:46:011
19179963,2cyclictest24504-21diskmemload09:43:341
19179963,2cyclictest22950-21ntp_kernel_pll_11:05:211
19179963,2cyclictest22815-21ssh09:47:311
19179963,2cyclictest21409-21cat10:45:141
19179963,2cyclictest20859-21grep09:00:131
19179963,2cyclictest13533-21cat08:45:111
19179963,2cyclictest11271-21sh12:16:471
19179963,2cyclictest0-21swapper/110:18:341
19179962,3cyclictest9349-21expr09:20:131
19179962,3cyclictest658-21snmpd11:11:191
19179962,3cyclictest658-21snmpd10:36:031
19179962,3cyclictest658-21snmpd07:25:491
19179962,3cyclictest658-21snmpd07:24:371
19179962,3cyclictest5642-21cat07:15:161
19179962,3cyclictest29693-21cat10:50:131
19179962,3cyclictest275-21systemd-journal07:15:011
19179962,3cyclictest2450-21expr08:20:131
19179962,3cyclictest22636-21expr11:25:131
19179962,3cyclictest13652-21munin-plugin-st11:20:011
19179962,1cyclictest141rcu_preempt09:05:161
19179962,1cyclictest0-21swapper/110:40:131
19179961,3cyclictest24504-21diskmemload12:05:561
19179961,1cyclictest25151-21perf08:00:011
19179960,6cyclictest0-21swapper/108:14:021
19179960,5cyclictest18185-21latency_hist07:45:011
19179960,3cyclictest27375-21munin-run08:05:011
19179960,0cyclictest0-21swapper/111:56:411
19179960,0cyclictest0-21swapper/110:07:291
19179960,0cyclictest0-21swapper/109:53:241
19129966,0cyclictest0-21swapper/009:25:180
19129964,1cyclictest4994-21grep08:25:140
19129963,2cyclictest658-21snmpd11:14:130
19129963,2cyclictest658-21snmpd09:03:510
19129963,2cyclictest4330-21sh09:16:390
19129963,2cyclictest275-21systemd-journal08:16:250
19129963,2cyclictest275-21systemd-journal07:57:340
19129963,2cyclictest24504-21diskmemload12:05:160
19129963,2cyclictest11464-21sh12:36:390
19129963,2cyclictest10303-21ssh10:19:100
19129962,3cyclictest6980-21ls08:30:120
19129962,3cyclictest658-21snmpd11:50:050
19129962,3cyclictest658-21snmpd09:20:540
19129962,3cyclictest658-21snmpd08:41:140
19129962,3cyclictest658-21snmpd08:22:530
19129962,3cyclictest658-21snmpd07:46:220
19129962,3cyclictest658-21snmpd07:17:130
19129962,3cyclictest658-21snmpd07:13:060
19129962,3cyclictest6159-21expr11:15:120
19129962,3cyclictest30528-21cat08:10:140
19129962,3cyclictest28846-21ls10:30:140
19129962,3cyclictest28295-21cat08:05:130
19129962,3cyclictest26889-21uname09:30:180
19129962,3cyclictest24493-21ssh11:25:370
19129962,3cyclictest16902-21cat07:40:140
19129962,3cyclictest16586-21cat12:20:130
19129962,3cyclictest11885-21cat07:30:120
19129962,3cyclictest11040-21expr10:00:120
19129962,2cyclictest304-21systemd-udevd08:51:350
19129962,1cyclictest0-21swapper/012:27:530
19129962,1cyclictest0-21swapper/012:18:260
19129961,3cyclictest275-21systemd-journal11:05:260
19129960,6cyclictest0-21swapper/011:21:020
19129960,5cyclictest27407-21ssh09:50:170
19129960,5cyclictest13528-21grep10:40:140
19129960,0cyclictest0-21swapper/010:37:290
1396260,0sleep10-21swapper/109:15:151
19259953,1cyclictest24504-21diskmemload11:45:053
19259952,2cyclictest21635-21cat07:50:153
19259952,2cyclictest14546-21cat07:35:153
19259951,3cyclictest16310-21/usr/sbin/munin12:00:163
19259951,2cyclictest275-21systemd-journal09:05:133
19259951,2cyclictest275-21systemd-journal08:15:003
19259950,4cyclictest27612-21/usr/sbin/munin08:05:163
19209951,3cyclictest27701-21cat08:05:112
19179955,0cyclictest0-21swapper/111:20:071
19179953,1cyclictest28807-21sendmail_mailtr08:05:171
19179953,1cyclictest13971-21cat07:35:131
19179953,1cyclictest116812sleep110:20:031
19179952,2cyclictest7874-21ssh12:35:041
19179952,2cyclictest658-21snmpd08:15:201
19179952,2cyclictest26241-21rm12:25:411
19179952,2cyclictest25903-21cat09:30:131
19179952,2cyclictest18606-21missed_timers08:55:161
19179952,2cyclictest13600-21ssh11:00:111
19179952,2cyclictest12049-21sh07:30:131
19179952,1cyclictest0-21swapper/110:25:131
19179952,1cyclictest0-21swapper/109:56:311
19179951,3cyclictest27159-21ssh10:10:051
19179950,3cyclictest17310-21rm09:25:051
19179950,2cyclictest674-21lldpd08:44:491
19129953,1cyclictest21333-21expr10:45:140
19129953,1cyclictest10402-21sh07:25:170
19129952,2cyclictest7886-21cat07:20:140
19129952,2cyclictest26013-21sh08:00:140
19129952,2cyclictest22900-21expr09:05:120
19129952,2cyclictest21365-21awk07:50:140
19129952,2cyclictest1674-21seq12:10:440
19129952,2cyclictest14336-21cut07:35:140
19129951,3cyclictest7092-21ssh11:55:100
19129951,3cyclictest10083-21smart_sda08:35:180
19129950,3cyclictest275-21systemd-journal08:55:360
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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