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2026-04-11 - 12:28
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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 highest latencies:
System rackaslot8.osadl.org (updated Sat Apr 11, 2026 00:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
236552302275,17sleep20-21swapper/219:05:422
240022280250,20sleep10-21swapper/119:09:551
238332268236,21sleep30-21swapper/319:07:443
238182262231,21sleep00-21swapper/019:07:330
73482620,0sleep00-21swapper/023:21:470
226962620,0sleep20-21swapper/223:30:502
196132610,0sleep20-21swapper/221:12:592
293572600,0sleep30-21swapper/319:20:013
46032570,0sleep20-21swapper/222:21:392
209162550,0sleep10-21swapper/121:52:271
213022540,0sleep30-21swapper/322:31:333
134512540,0sleep10-21swapper/100:05:131
196942180,0sleep20-21swapper/220:10:132
170432160,0sleep30-21swapper/322:10:113
177652130,0sleep20-21swapper/222:49:382
184262110,0sleep10-21swapper/121:31:041
134002100,0sleep00-21swapper/021:48:010
241249998,1cyclictest28-21ksoftirqd/223:10:012
19672290,0sleep10-21swapper/123:29:531
30663280,0sleep30-21swapper/322:18:083
241289983,3cyclictest275-21systemd-journal21:10:013
241249984,3cyclictest275-21systemd-journal20:45:002
241249980,7cyclictest0-21swapper/223:45:122
241159985,2cyclictest658-21snmpd22:21:500
1048280,0sleep30-21swapper/323:57:143
241289973,3cyclictest504-21dbus-daemon23:20:013
241289973,3cyclictest4615-21awk23:00:203
241289973,3cyclictest275-21systemd-journal22:40:543
241289973,3cyclictest275-21systemd-journal22:24:413
241289973,3cyclictest275-21systemd-journal00:18:243
241289972,3cyclictest275-21systemd-journal20:56:483
241289972,3cyclictest275-21systemd-journal00:08:313
241249975,1cyclictest213282sleep223:10:242
241249974,2cyclictest658-21snmpd22:06:012
241249973,3cyclictest658-21snmpd19:26:452
241249973,3cyclictest504-21dbus-daemon20:35:002
241249970,7cyclictest498-21ssh22:39:092
241199975,1cyclictest4593-21memory23:20:151
241199973,3cyclictest658-21snmpd00:38:471
241199973,3cyclictest275-21systemd-journal21:15:201
241199973,3cyclictest21422-21diskstats23:50:121
241199971,1cyclictest116352ssh23:44:321
241199970,1cyclictest11113-21ssh21:26:491
241159975,2cyclictest28569-21apt-get23:35:110
241159973,3cyclictest658-21snmpd23:28:490
241159973,3cyclictest275-21systemd-journal21:59:120
241159973,3cyclictest24228-21cat00:30:170
241159973,2cyclictest275-21systemd-journal22:34:140
241159972,4cyclictest4788-21expr23:40:110
241159971,4cyclictest17078-21awk20:05:010
721260,0sleep30-21swapper/321:40:153
30640260,0sleep00-21swapper/019:20:180
29309260,1sleep30-21swapper/300:34:053
241289966,0cyclictest0-21swapper/323:45:333
241289964,1cyclictest23155-21cpuspeed_turbos21:15:123
241289964,1cyclictest0-21swapper/300:10:143
241289963,2cyclictest968-21ssh00:35:523
241289963,2cyclictest9402-21rm00:21:303
241289963,2cyclictest658-21snmpd23:28:163
241289963,2cyclictest658-21snmpd20:31:193
241289963,2cyclictest2753-21/usr/sbin/munin20:45:153
241289963,2cyclictest21410-21ssh23:10:273
241289963,2cyclictest14221-21ssh22:08:123
241289963,2cyclictest13636-21cron21:10:003
241289963,2cyclictest12178-21ssh23:05:153
241289962,3cyclictest658-21snmpd23:37:403
241289962,3cyclictest658-21snmpd22:36:323
241289962,3cyclictest658-21snmpd22:00:073
241289962,3cyclictest658-21snmpd21:30:063
241289962,3cyclictest658-21snmpd21:24:563
241289962,3cyclictest658-21snmpd20:52:293
241289962,3cyclictest658-21snmpd20:40:583
241289962,3cyclictest658-21snmpd20:18:313
241289962,3cyclictest658-21snmpd20:09:433
241289962,3cyclictest658-21snmpd19:38:513
241289962,3cyclictest658-21snmpd19:32:363
241289962,3cyclictest30613-21sensors_temp19:20:173
241289962,3cyclictest24354-21cat21:35:123
241289962,3cyclictest16792-21expr21:50:133
241289962,3cyclictest10129-21cat21:00:143
241289962,1cyclictest0-21swapper/323:40:113
241289962,1cyclictest0-21swapper/323:30:063
241289961,3cyclictest275-21systemd-journal21:55:273
241289961,3cyclictest275-21systemd-journal00:00:013
241289960,5cyclictest7465-21/usr/sbin/munin21:25:153
241289960,5cyclictest14837-21wc20:00:013
241289960,3cyclictest275-21systemd-journal23:50:113
241289960,2cyclictest19682-21expr20:10:133
241289960,0cyclictest0-21swapper/322:28:343
241249966,0cyclictest0-21swapper/221:45:592
241249966,0cyclictest0-21swapper/219:40:232
241249963,2cyclictest9872-21sh23:04:212
241249963,2cyclictest7776-21expr21:25:122
241249963,2cyclictest658-21snmpd20:45:072
241249963,2cyclictest658-21snmpd19:46:182
241249963,2cyclictest3714-21ssh23:39:492
241249963,2cyclictest31883-21smart_sda20:35:182
241249963,2cyclictest29256-21find23:55:112
241249963,2cyclictest275-21systemd-journal21:07:252
241249963,2cyclictest275-21systemd-journal20:59:502
241249963,2cyclictest25970-21cron20:25:002
241249963,2cyclictest25749-21ssh21:35:192
241249963,2cyclictest22094-21cpuspeed00:10:122
241249963,2cyclictest1801-21sh00:36:302
241249963,2cyclictest14479-21ssh00:25:122
241249963,2cyclictest1-21systemd23:20:182
241249963,1cyclictest0-21swapper/222:51:022
241249962,3cyclictest658-21snmpd23:25:432
241249962,3cyclictest658-21snmpd21:31:452
241249962,3cyclictest658-21snmpd21:24:112
241249962,3cyclictest658-21snmpd20:52:022
241249962,3cyclictest658-21snmpd20:07:552
241249962,3cyclictest658-21snmpd00:24:322
241249962,3cyclictest2364-21grep22:40:112
241249962,3cyclictest12554-21find19:55:102
241249962,3cyclictest0-21swapper/222:26:122
241249962,2cyclictest658-21snmpd21:55:462
241249961,4cyclictest658-21snmpd00:07:492
241249961,3cyclictest275-21systemd-journal21:17:192
241249960,6cyclictest0-21swapper/223:53:212
241249960,6cyclictest0-21swapper/223:44:492
241249960,5cyclictest28978-21grep23:15:162
241249960,2cyclictest24306-21/usr/sbin/munin19:10:142
241249960,0cyclictest0-21swapper/220:00:212
241199965,1cyclictest221ksoftirqd/120:00:011
241199963,2cyclictest9197-21awk21:45:171
241199963,2cyclictest658-21snmpd20:23:341
241199963,2cyclictest658-21snmpd19:15:261
241199963,2cyclictest658-21snmpd00:18:051
241199963,2cyclictest504-21dbus-daemon22:35:291
241199963,2cyclictest31466-21chrt23:36:141
241199963,2cyclictest28560-21cat22:55:181
241199963,2cyclictest275-21systemd-journal20:07:091
241199963,2cyclictest275-21systemd-journal00:14:231
241199963,2cyclictest26026-21ssh23:14:001
241199963,2cyclictest23430-21sshd20:16:391
241199963,2cyclictest21498-21sh00:29:271
241199963,2cyclictest17445-21df_inode22:10:121
241199963,2cyclictest13469-21cat23:45:151
241199963,2cyclictest11107-21ssh00:22:491
241199963,1cyclictest13660-21diskmemload22:26:151
241199963,1cyclictest0-21swapper/123:17:211
241199963,1cyclictest0-21swapper/122:51:391
241199963,1cyclictest0-21swapper/122:19:231
241199962,3cyclictest658-21snmpd20:27:341
241199962,3cyclictest658-21snmpd19:51:181
241199962,3cyclictest658-21snmpd19:45:061
241199962,3cyclictest658-21snmpd19:43:361
241199962,3cyclictest658-21snmpd19:35:481
241199962,3cyclictest658-21snmpd19:14:441
241199962,3cyclictest5286-21cat00:00:131
241199962,3cyclictest32083-21tune2fs19:25:141
241199962,3cyclictest32028-21cat20:35:191
241199962,3cyclictest2302-21sed22:00:211
241199962,1cyclictest0-21swapper/122:21:421
241199962,1cyclictest0-21swapper/121:20:011
241199960,6cyclictest0-21swapper/123:30:071
241199960,6cyclictest0-21swapper/123:04:301
241199960,6cyclictest0-21swapper/122:06:311
241199960,6cyclictest0-21swapper/121:59:111
241199960,6cyclictest0-21swapper/121:41:511
241199960,0cyclictest0-21swapper/121:36:191
241159963,2cyclictest658-21snmpd22:44:080
241159963,2cyclictest658-21snmpd22:25:410
241159963,2cyclictest658-21snmpd00:25:260
241159963,2cyclictest504-21dbus-daemon19:16:380
241159963,2cyclictest4250-21grep19:35:150
241159963,2cyclictest30409-21ssh21:38:560
241159963,2cyclictest29555-21ssh23:15:190
241159963,2cyclictest275-21systemd-journal23:01:450
241159963,2cyclictest16220-21diskstats21:30:150
241159963,2cyclictest13264-21sshd21:05:390
241159963,1cyclictest0-21swapper/000:17:560
241159962,3cyclictest658-21snmpd23:49:040
241159962,3cyclictest658-21snmpd21:41:000
241159962,3cyclictest658-21snmpd21:15:050
241159962,3cyclictest658-21snmpd20:55:560
241159962,3cyclictest658-21snmpd20:21:370
241159962,3cyclictest658-21snmpd20:06:070
241159962,3cyclictest658-21snmpd19:40:210
241159962,3cyclictest658-21snmpd19:10:590
241159962,3cyclictest658-21snmpd00:20:110
241159962,3cyclictest3729-21ntpq20:45:160
241159962,3cyclictest31927-21expr19:25:130
241159962,3cyclictest275-21systemd-journal21:05:000
241159962,3cyclictest27332-21ntpq22:35:160
241159962,3cyclictest21011-21cat23:10:190
241159962,3cyclictest20902-21grep23:30:150
241159962,3cyclictest20627-21processes20:10:180
241159962,3cyclictest17970-21cat21:50:200
241159962,3cyclictest12669-21cat19:55:120
241159962,3cyclictest11198-21if_enp4s022:45:160
241159962,3cyclictest10331-21cat22:05:190
241159962,1cyclictest141rcu_preempt22:50:180
241159962,1cyclictest0-21swapper/022:56:020
241159962,1cyclictest0-21swapper/022:10:500
241159960,6cyclictest13660-21diskmemload00:07:450
241159960,6cyclictest0-21swapper/021:11:310
241159960,3cyclictest9721-21ssh21:25:440
241159960,1cyclictest31391-21ssh21:20:010
241159960,0cyclictest0-21swapper/000:35:030
241159960,0cyclictest0-21swapper/000:00:100
241289953,2cyclictest26780-21head20:25:143
241289952,2cyclictest8103-21ssh21:45:093
241289952,2cyclictest7863-21cron19:45:013
241289952,2cyclictest7500-21taskset19:40:403
241289952,2cyclictest658-21snmpd23:20:093
241289952,2cyclictest275-21systemd-journal19:50:033
241289952,2cyclictest275-21systemd-journal19:25:233
241289952,2cyclictest26847-21rm22:55:033
241289952,2cyclictest24271-21expr20:20:133
241289952,2cyclictest19434-21if_enp4s022:50:143
241289952,2cyclictest14957-21gpgconf20:00:013
241289951,3cyclictest24704-21df19:10:123
241289951,3cyclictest14998-21/usr/sbin/munin00:25:143
241289950,4cyclictest30660-21/usr/sbin/munin20:35:113
241289950,3cyclictest275-21systemd-journal22:45:043
241249953,1cyclictest17508-21fschecks_count22:10:132
241249953,1cyclictest16882-21df_inode21:50:142
241249952,2cyclictest658-21snmpd21:40:062
241249952,2cyclictest658-21snmpd21:00:022
241249952,2cyclictest4929-21cups-browsed00:00:012
241249952,2cyclictest4331-21/usr/sbin/munin19:35:162
241249952,2cyclictest26996-21cat22:55:102
241249952,2cyclictest26304-21cat20:25:122
241249952,2cyclictest26071-21if_enp4s022:15:162
241249952,2cyclictest23847-21processes00:30:152
241249952,2cyclictest22558-21load20:15:152
241249952,2cyclictest18770-21cat22:30:162
241249952,2cyclictest1186-21latency_hist19:30:012
241249952,2cyclictest10988-21cat19:50:152
241249952,1cyclictest0-21swapper/222:00:192
241249952,1cyclictest0-21swapper/200:15:012
241249951,3cyclictest30088-21cat19:20:142
241249951,3cyclictest28126-21ntpq19:15:182
241199953,1cyclictest29102-21ssh23:55:041
241199953,1cyclictest18548-21fschecks_time22:30:141
241199953,1cyclictest15160-21cpu20:00:121
241199953,1cyclictest13995-21apt-config21:10:001
241199953,1cyclictest13660-21diskmemload23:05:171
241199952,2cyclictest9471-21wc21:00:121
241199952,2cyclictest851-21expr20:40:131
241199952,2cyclictest5167-21cut20:50:111
241199952,2cyclictest3706-21ntpq20:45:161
241199952,2cyclictest29405-21find19:20:101
241199952,2cyclictest29133-21cat20:30:151
241199952,2cyclictest22852-21expr00:30:101
241199952,2cyclictest21380-21chrt20:13:321
241199952,2cyclictest2034-21ssh22:40:061
241199952,2cyclictest12351-21cat21:05:151
241199952,1cyclictest13660-21diskmemload22:45:071
241199951,3cyclictest7605-21df_inode20:55:121
241199951,3cyclictest275-21systemd-journal19:30:031
241159953,1cyclictest658-21snmpd20:50:050
241159953,1cyclictest20820-21sh23:50:040
241159953,1cyclictest1-21systemd20:33:300
241159952,2cyclictest8234-21cat19:45:130
241159952,2cyclictest658-21snmpd22:15:080
241159952,2cyclictest658-21snmpd20:35:010
241159952,2cyclictest22349-21tail20:15:140
241159952,2cyclictest21939-21sh00:10:080
241159952,2cyclictest1120-21expr20:40:140
241159952,2cyclictest11019-21ssh23:05:030
241159952,2cyclictest10349-21apt19:50:120
241159951,3cyclictest29876-21head23:55:130
241159951,3cyclictest27444-21swap20:25:180
241159950,3cyclictest304-21systemd-udevd19:30:020
241159950,2cyclictest334-21sh22:00:040
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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