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2026-04-23 - 00:41
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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 376 highest latencies:
System rackaslot8.osadl.org (updated Wed Apr 22, 2026 12:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
221392322293,19sleep20-21swapper/207:08:462
221682287256,21sleep10-21swapper/107:09:101
202582269233,22sleep30-21swapper/307:05:093
218972263233,19sleep00-21swapper/007:05:550
298332660,1sleep229817-21munin-run09:40:012
155412610,0sleep10-21swapper/111:27:041
127152610,0sleep30-21swapper/307:55:193
91912580,0sleep30-21swapper/307:50:113
215062560,0sleep30-21swapper/310:51:423
148742560,0sleep2271rcuc/209:10:342
27392540,0sleep10-21swapper/107:35:111
198992520,0sleep00-21swapper/010:31:410
243582160,0sleep00-21swapper/009:55:210
8462150,1sleep20-21swapper/210:20:182
101802150,0sleep10-21swapper/111:24:191
18362130,0sleep10-21swapper/111:00:011
2235199119,1cyclictest34-21ksoftirqd/309:40:013
2234999103,4cyclictest28906-21idleruntime-cro08:35:002
2234999100,7cyclictest26109-21ssh10:55:012
102062100,0sleep00-21swapper/012:22:080
223499991,3cyclictest0-21swapper/211:21:512
223499990,6cyclictest9809-21ssh12:02:312
223499990,6cyclictest29470-21/usr/sbin/munin09:20:112
223499990,6cyclictest28938-21ssh11:15:202
223499990,6cyclictest28938-21ssh11:15:202
223499990,6cyclictest27452-21sh11:53:582
223499990,6cyclictest23616-21ssh11:12:322
223499990,6cyclictest0-21swapper/212:39:532
223499990,4cyclictest13655-21cpuspeed_turbos12:05:112
223499990,3cyclictest658-21snmpd11:58:382
223499990,3cyclictest30164-21ssh12:15:102
223459998,1cyclictest22-21ksoftirqd/109:10:001
223459993,4cyclictest23543-21cups-browsed08:40:001
223519985,2cyclictest658-21snmpd11:59:173
223519983,3cyclictest275-21systemd-journal09:50:013
223499981,3cyclictest12073-21diskmemload12:11:122
223499981,3cyclictest12073-21diskmemload10:00:402
223499980,6cyclictest29886-21ssh10:18:402
223499980,6cyclictest19402-21ssh09:52:502
223499980,6cyclictest14497-21ssh10:47:572
223499980,6cyclictest10250-21ssh09:47:132
223499980,5cyclictest25873-21ssh09:56:212
223499980,5cyclictest2446-21ssh09:42:292
223499980,5cyclictest0-21swapper/210:30:202
223499980,4cyclictest8087-21ssh11:03:242
223499980,4cyclictest24510-21rm09:16:382
223499980,4cyclictest10908-21sh11:43:582
223499980,3cyclictest31161-21rm11:36:022
223499980,3cyclictest22568-21rm12:30:012
223499980,3cyclictest21519-21rm10:51:412
223499980,3cyclictest19340-21sh10:12:022
223499980,3cyclictest17518-21rm12:26:202
223499980,3cyclictest14951-21taskset10:29:162
223499980,3cyclictest12073-21diskmemload11:30:102
223499980,3cyclictest11204-21sh10:07:092
223499980,2cyclictest14913-21ssh11:26:342
223459987,1cyclictest22-21ksoftirqd/107:35:011
223459986,1cyclictest22-21ksoftirqd/110:20:011
223459980,7cyclictest28031-21ssh09:58:011
223429983,3cyclictest275-21systemd-journal10:05:100
223429983,3cyclictest24835-21munin-run07:15:010
6286270,0sleep00-21swapper/010:24:000
27058270,0sleep00-21swapper/010:16:310
223519974,2cyclictest275-21systemd-journal12:17:143
223519974,2cyclictest275-21systemd-journal12:04:553
223519974,2cyclictest275-21systemd-journal11:41:123
223519973,3cyclictest6699-21tail12:20:133
223519973,3cyclictest658-21snmpd08:57:263
223519972,4cyclictest1052-21tr10:20:193
223519970,1cyclictest24725-21ssh12:11:123
223519970,1cyclictest0-21swapper/310:43:243
223499971,3cyclictest9857-21basename09:04:592
223499970,5cyclictest27393-21taskset07:16:322
223499970,4cyclictest663-21runrttasks08:35:482
223499970,4cyclictest13769-21ssh11:45:162
223499970,3cyclictest9058-21/usr/sbin/munin07:50:142
223499970,3cyclictest394-21fschecks_count07:30:132
223499970,3cyclictest31784-21/usr/sbin/munin08:40:142
223499970,3cyclictest28186-21cat07:20:132
223499970,3cyclictest17090-21ssh09:31:372
223499970,3cyclictest12073-21diskmemload11:05:042
223499970,3cyclictest12073-21diskmemload09:25:302
223499970,2cyclictest9827-21ssh12:21:512
223499970,2cyclictest957-21sh10:40:122
223499970,2cyclictest12073-21diskmemload10:35:082
223459974,2cyclictest658-21snmpd09:13:331
223459973,3cyclictest10722-21awk11:05:111
223459970,6cyclictest25878-21cron10:55:011
223429973,3cyclictest658-21snmpd07:26:450
223429973,3cyclictest19130-21rm12:08:170
223429970,6cyclictest12462-21ssh12:04:330
223519966,0cyclictest0-21swapper/307:35:163
223519965,1cyclictest34-21ksoftirqd/312:10:003
223519964,1cyclictest34-21ksoftirqd/307:50:003
223519963,2cyclictest8554-21sh09:26:283
223519963,2cyclictest504-21dbus-daemon11:22:223
223519963,2cyclictest32697-21expr07:30:123
223519963,2cyclictest26275-21ssh10:55:093
223519963,2cyclictest24747-21ssh11:32:303
223519963,2cyclictest24392-21unixbench-2d12:30:193
223519963,2cyclictest22704-21sh11:11:503
223519963,2cyclictest16982-21sh09:50:593
223519963,2cyclictest14606-21sh11:45:263
223519963,2cyclictest10367-21ntp_kernel_pll_10:45:163
223519963,2cyclictest0-21swapper/311:02:373
223519962,3cyclictest658-21snmpd11:50:433
223519962,3cyclictest658-21snmpd11:36:443
223519962,3cyclictest658-21snmpd09:44:043
223519962,3cyclictest658-21snmpd09:30:123
223519962,3cyclictest658-21snmpd08:46:233
223519962,3cyclictest658-21snmpd07:43:303
223519962,3cyclictest658-21snmpd07:23:513
223519962,3cyclictest504-21dbus-daemon08:40:193
223519962,3cyclictest504-21dbus-daemon08:19:593
223519962,3cyclictest504-21dbus-daemon08:11:303
223519962,3cyclictest275-21systemd-journal07:19:153
223519962,3cyclictest25784-21ntp_kernel_pll_10:35:173
223519962,3cyclictest24376-21sshd08:24:143
223519962,3cyclictest21831-21cat09:15:153
223519962,3cyclictest11815-21cat11:25:123
223519962,2cyclictest674-21lldpd08:52:303
223519962,2cyclictest32153-1kworker/u9:011:05:273
223519962,1cyclictest0-21swapper/311:15:323
223519962,1cyclictest0-21swapper/311:15:323
223519962,1cyclictest0-21swapper/310:10:203
223519960,6cyclictest0-21swapper/312:36:133
223519960,6cyclictest0-21swapper/310:18:523
223519960,6cyclictest0-21swapper/310:04:113
223519960,6cyclictest0-21swapper/309:12:333
223519960,6cyclictest0-21swapper/307:10:153
223519960,1cyclictest0-21swapper/309:20:113
223519960,0cyclictest0-21swapper/312:29:073
223499963,2cyclictest658-21snmpd09:06:392
223499963,2cyclictest658-21snmpd08:20:552
223499962,3cyclictest658-21snmpd08:16:492
223499962,3cyclictest658-21snmpd08:06:012
223499962,3cyclictest658-21snmpd08:00:512
223499962,3cyclictest658-21snmpd07:36:092
223499962,3cyclictest6255-21hwlatdetect08:55:152
223499962,3cyclictest23827-21ntpq07:10:172
223499962,3cyclictest0-21swapper/208:10:132
223499960,2cyclictest8224-21wc07:45:202
223499960,2cyclictest4622-21smartctl08:50:192
223499960,2cyclictest26517-21taskset08:28:162
223499960,2cyclictest0-21swapper/207:41:552
223459966,0cyclictest19588-21ssh10:12:131
223459966,0cyclictest0-21swapper/112:20:031
223459964,1cyclictest22-21ksoftirqd/111:30:001
223459963,2cyclictest658-21snmpd10:39:001
223459963,2cyclictest504-21dbus-daemon10:45:061
223459963,2cyclictest501-21in:imuxsock07:41:251
223459963,2cyclictest29950-21cron07:25:011
223459963,2cyclictest24827-21sh12:30:331
223459963,2cyclictest24360-21ssh09:16:321
223459963,2cyclictest23629-21sendmail_mailst08:20:191
223459963,2cyclictest22500-21ssh10:33:391
223459963,2cyclictest2137-21rm11:58:001
223459963,2cyclictest19276-21cat11:10:121
223459963,2cyclictest15604-21wc09:50:181
223459963,2cyclictest11285-21/usr/sbin/munin07:55:171
223459963,1cyclictest0-21swapper/112:35:131
223459962,3cyclictest994-21ssh10:00:451
223459962,3cyclictest6788-21ls12:00:191
223459962,3cyclictest658-21snmpd12:28:361
223459962,3cyclictest658-21snmpd12:09:141
223459962,3cyclictest658-21snmpd11:18:551
223459962,3cyclictest658-21snmpd11:18:551
223459962,3cyclictest658-21snmpd10:20:331
223459962,3cyclictest658-21snmpd09:20:271
223459962,3cyclictest30690-21df09:40:121
223459962,3cyclictest28809-21expr11:35:131
223459962,3cyclictest2576-21expr11:00:131
223459962,3cyclictest25155-21tune2fs08:25:141
223459962,3cyclictest18324-21expr08:10:121
223459962,1cyclictest0-21swapper/109:38:281
223459962,1cyclictest0-21swapper/109:26:221
223459960,6cyclictest0-21swapper/111:42:471
223459960,6cyclictest0-21swapper/110:27:081
223459960,6cyclictest0-21swapper/109:32:451
223459960,5cyclictest6830-21/usr/sbin/munin07:45:141
223459960,3cyclictest26588-21sshd11:53:191
223459960,0cyclictest0-21swapper/109:47:251
223429963,2cyclictest663-21runrttasks08:12:460
223429963,2cyclictest658-21snmpd09:05:120
223429963,2cyclictest5092-21ssh12:38:530
223429963,2cyclictest491-21systemd-logind09:12:070
223429963,2cyclictest29901-21ssh10:56:440
223429963,2cyclictest23947-21ssh11:12:470
223429963,2cyclictest19723-21rm09:33:370
223429963,2cyclictest14956-21sh10:48:180
223429963,2cyclictest13748-21ssh10:28:190
223429963,2cyclictest0-21swapper/011:35:560
223429963,1cyclictest0-21swapper/011:40:240
223429962,3cyclictest658-21snmpd12:10:320
223429962,3cyclictest658-21snmpd11:58:290
223429962,3cyclictest658-21snmpd11:52:590
223429962,3cyclictest658-21snmpd11:30:050
223429962,3cyclictest658-21snmpd09:40:250
223429962,3cyclictest658-21snmpd09:23:060
223429962,3cyclictest658-21snmpd08:50:260
223429962,3cyclictest658-21snmpd08:35:530
223429962,3cyclictest658-21snmpd08:33:500
223429962,3cyclictest658-21snmpd07:50:580
223429962,3cyclictest658-21snmpd07:45:570
223429962,3cyclictest658-21snmpd07:42:410
223429962,3cyclictest504-21dbus-daemon07:32:400
223429962,3cyclictest30708-21expr12:15:130
223429962,3cyclictest29815-21turbostat09:40:010
223429962,3cyclictest275-21systemd-journal09:20:010
223429962,3cyclictest15152-21cat09:50:150
223429962,3cyclictest11561-21expr07:55:120
223429962,1cyclictest0-21swapper/011:25:050
223429962,1cyclictest0-21swapper/011:05:110
223429961,4cyclictest0-21swapper/010:42:140
223429960,5cyclictest2317-21/usr/sbin/munin11:00:170
223519953,1cyclictest100762sleep309:05:113
223519952,2cyclictest7878-21ssh10:25:043
223519952,2cyclictest6901-21ssh10:05:053
223519952,2cyclictest658-21snmpd07:25:113
223519952,2cyclictest27557-21basename08:30:163
223519952,2cyclictest24990-21expr08:25:133
223519952,2cyclictest15869-21cat08:05:123
223519952,2cyclictest14078-21expr08:00:143
223519951,3cyclictest8540-21cat09:00:143
223519951,3cyclictest331rcuc/310:30:123
223519951,3cyclictest29353-21cat08:35:123
223519950,2cyclictest22665-21rm09:55:083
223499953,1cyclictest663-21runrttasks07:25:052
223499952,2cyclictest12861-21users07:55:202
223499951,3cyclictest2127-21/usr/sbin/munin08:45:162
223459953,1cyclictest8254-21expr09:00:121
223459953,1cyclictest663-21runrttasks11:45:011
223459953,1cyclictest25327-21sh07:15:011
223459953,1cyclictest1314-21expr10:40:121
223459952,2cyclictest7150-21awk10:05:121
223459952,2cyclictest658-21snmpd12:10:081
223459952,2cyclictest5621-21chrt08:55:111
223459952,2cyclictest30816-21idleruntime12:15:131
223459952,2cyclictest30311-21tr07:25:131
223459952,2cyclictest20237-21apt-get08:15:121
223459952,2cyclictest1366-21expr08:45:111
223459952,2cyclictest13270-21cron08:00:001
223459952,2cyclictest10397-21cat07:50:181
223459951,3cyclictest4018-21which08:50:141
223459951,3cyclictest27160-21expr08:30:141
223459951,3cyclictest23824-21ntp_states07:10:171
223459951,3cyclictest16433-21basename08:05:141
223459950,1cyclictest31373-21/usr/sbin/munin08:40:141
223429953,1cyclictest28539-21gltestperf07:20:150
223429953,1cyclictest14189-21idleruntime08:00:140
223429952,2cyclictest658-21snmpd11:20:030
223429952,2cyclictest658-21snmpd10:00:080
223429952,2cyclictest658-21snmpd08:25:020
223429952,2cyclictest6053-21ssh09:45:050
223429952,2cyclictest5832-21cut08:55:130
223429952,2cyclictest31586-21cat08:40:120
223429952,2cyclictest2750-21sh07:35:110
223429952,2cyclictest25593-21wc07:15:020
223429952,2cyclictest24637-21sh10:35:080
223429952,2cyclictest22623-21sh12:30:030
223429952,2cyclictest21194-21ntp_states08:15:170
223429952,2cyclictest1826-21idleruntime08:45:140
223429952,2cyclictest17761-21ssh10:50:020
223429952,2cyclictest15282-21sh10:10:060
223429952,2cyclictest13046-21expr11:45:110
223429951,3cyclictest7860-21/usr/sbin/munin09:00:130
223429951,3cyclictest6089-21cat09:25:150
223429951,3cyclictest27909-21expr11:15:140
223429951,3cyclictest27909-21expr11:15:130
223429951,3cyclictest16187-21/usr/sbin/munin08:05:130
223429951,3cyclictest15131-21grep12:25:140
223429950,4cyclictest22462-21/usr/sbin/munin08:20:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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