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2025-12-25 - 22:37
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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 Thu Dec 25, 2025 12:44:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
312112299268,20sleep20-21swapper/207:09:092
312462285255,20sleep10-21swapper/107:09:361
311892280247,22sleep00-21swapper/007:08:510
311872260230,20sleep30-21swapper/307:08:493
135212190,0sleep10-21swapper/107:40:021
63242130,0sleep10-21swapper/108:35:101
11762120,4sleep334-21ksoftirqd/307:15:023
314119987,1cyclictest34-21ksoftirqd/310:25:003
314119986,2cyclictest34-21ksoftirqd/310:50:013
314119984,2cyclictest275-21systemd-journal07:20:163
314119984,2cyclictest275-21systemd-journal07:20:163
314119982,4cyclictest0-21swapper/311:10:153
314069983,3cyclictest275-21systemd-journal10:59:382
314069983,3cyclictest275-21systemd-journal10:39:482
313989987,1cyclictest12-21ksoftirqd/012:39:590
313989986,1cyclictest12-21ksoftirqd/012:19:590
30079280,4sleep334-21ksoftirqd/310:40:143
314119973,3cyclictest504-21dbus-daemon07:39:253
314119972,3cyclictest275-21systemd-journal10:55:353
314119972,3cyclictest275-21systemd-journal10:10:003
314119972,3cyclictest275-21systemd-journal07:45:193
314119972,3cyclictest0-21swapper/311:00:393
314119971,5cyclictest0-21swapper/311:59:003
314119971,4cyclictest34-21ksoftirqd/312:25:493
314119971,4cyclictest34-21ksoftirqd/311:31:513
314119971,4cyclictest34-21ksoftirqd/309:05:003
314119971,4cyclictest34-21ksoftirqd/309:00:163
314119971,4cyclictest34-21ksoftirqd/308:50:053
314119971,4cyclictest34-21ksoftirqd/308:05:183
314119971,4cyclictest34-21ksoftirqd/308:00:133
314119971,4cyclictest0-21swapper/312:22:333
314119971,4cyclictest0-21swapper/310:38:233
314119971,4cyclictest0-21swapper/310:33:593
314119971,4cyclictest0-21swapper/309:44:213
314119971,4cyclictest0-21swapper/309:16:053
314119971,4cyclictest0-21swapper/308:30:343
314119971,3cyclictest0-21swapper/310:25:373
314119971,2cyclictest34-21ksoftirqd/311:25:153
314119971,2cyclictest26965-21grep08:10:133
314119971,1cyclictest22873-21if_enp4s011:35:133
314069974,2cyclictest275-21systemd-journal07:45:012
314069973,3cyclictest275-21systemd-journal11:25:402
314069972,3cyclictest17793-21idleruntime-cro07:50:002
314029973,3cyclictest658-21snmpd11:00:461
314029973,3cyclictest275-21systemd-journal10:45:001
314029973,2cyclictest275-21systemd-journal07:20:011
314029972,3cyclictest5422-21munin-run08:35:001
313989975,1cyclictest22246-21perf08:00:010
313989974,2cyclictest275-21systemd-journal10:05:270
313989973,3cyclictest560-21gdbus10:55:000
313989973,3cyclictest275-21systemd-journal09:20:350
313989973,2cyclictest275-21systemd-journal09:10:100
314119965,1cyclictest331rcuc/311:24:483
314119965,1cyclictest331rcuc/308:15:203
314119964,1cyclictest331rcuc/309:23:303
314119962,3cyclictest7944-21seq12:15:043
314119962,3cyclictest658-21snmpd12:31:263
314119962,3cyclictest658-21snmpd11:50:123
314119962,3cyclictest658-21snmpd11:47:513
314119962,3cyclictest658-21snmpd10:50:413
314119962,3cyclictest658-21snmpd10:02:373
314119962,3cyclictest658-21snmpd08:45:513
314119962,3cyclictest32572-21which08:20:213
314119962,3cyclictest275-21systemd-journal12:14:593
314119962,3cyclictest275-21systemd-journal07:30:023
314119962,3cyclictest14301-21cat07:40:133
314119962,3cyclictest1247-21cat12:00:133
314119962,3cyclictest10242-21grep07:30:223
314119962,1cyclictest141rcu_preempt09:35:213
314119961,4cyclictest0-21swapper/312:38:313
314119961,4cyclictest0-21swapper/309:57:553
314119961,4cyclictest0-21swapper/308:44:093
314119961,3cyclictest34-21ksoftirqd/309:45:223
314119961,3cyclictest0-21swapper/311:15:043
314119961,3cyclictest0-21swapper/310:17:563
314119961,3cyclictest0-21swapper/309:52:453
314119961,3cyclictest0-21swapper/307:54:293
314119961,1cyclictest504-21dbus-daemon08:57:533
314119961,1cyclictest34-21ksoftirqd/311:40:143
314119961,1cyclictest34-21ksoftirqd/307:55:173
314119961,1cyclictest21555-21apt-get09:10:113
314119960,4cyclictest34-21ksoftirqd/309:25:173
314119960,2cyclictest4395-21mailstats12:05:173
314119960,2cyclictest34-21ksoftirqd/309:30:183
314119960,1cyclictest34-21ksoftirqd/307:15:173
314069963,2cyclictest658-21snmpd12:05:372
314069963,2cyclictest3120-21seq08:29:182
314069963,2cyclictest28-21ksoftirqd/209:25:012
314069963,2cyclictest17373-21chrt11:23:082
314069962,3cyclictest958-21cat09:35:152
314069962,3cyclictest658-21snmpd12:39:322
314069962,3cyclictest658-21snmpd12:20:012
314069962,3cyclictest658-21snmpd11:17:412
314069962,3cyclictest658-21snmpd11:10:412
314069962,3cyclictest658-21snmpd11:07:292
314069962,3cyclictest658-21snmpd10:49:382
314069962,3cyclictest658-21snmpd09:26:502
314069962,3cyclictest658-21snmpd09:11:412
314069962,3cyclictest658-21snmpd09:00:132
314069962,3cyclictest658-21snmpd08:44:242
314069962,3cyclictest658-21snmpd08:15:552
314069962,3cyclictest658-21snmpd07:57:232
314069962,3cyclictest658-21snmpd07:30:532
314069962,3cyclictest658-21snmpd07:26:592
314069962,3cyclictest658-21snmpd07:12:082
314069962,3cyclictest5759-21sed09:45:172
314069962,3cyclictest275-21systemd-journal12:16:392
314069962,3cyclictest275-21systemd-journal10:15:002
314069962,3cyclictest24707-21ntpq09:15:162
314069962,3cyclictest14918-21cat10:05:212
314069962,3cyclictest11110-21cat08:45:142
314069961,4cyclictest14418-21apt-get12:30:022
314069960,6cyclictest0-21swapper/208:10:282
314029966,0cyclictest0-21swapper/112:10:151
314029963,2cyclictest658-21snmpd11:16:471
314029963,2cyclictest658-21snmpd10:58:221
314029963,2cyclictest658-21snmpd10:10:311
314029963,2cyclictest504-21dbus-daemon11:35:011
314029963,2cyclictest504-21dbus-daemon07:30:011
314029963,2cyclictest501-21in:imuxsock08:15:141
314029963,2cyclictest4131-21sshd09:40:361
314029963,2cyclictest29880-21tr11:50:171
314029963,2cyclictest275-21systemd-journal08:55:101
314029963,2cyclictest19065-21cron09:05:011
314029962,3cyclictest658-21snmpd11:38:061
314029962,3cyclictest658-21snmpd11:24:501
314029962,3cyclictest658-21snmpd10:21:341
314029962,3cyclictest658-21snmpd09:52:151
314029962,3cyclictest658-21snmpd09:21:351
314029962,3cyclictest658-21snmpd09:05:561
314029962,3cyclictest658-21snmpd08:05:181
314029962,3cyclictest658-21snmpd07:52:421
314029962,3cyclictest658-21snmpd07:10:041
314029962,3cyclictest31284-21ls11:55:121
314029962,3cyclictest275-21systemd-journal12:19:061
314029962,3cyclictest275-21systemd-journal08:10:311
314029962,3cyclictest23205-21cat10:25:121
314029962,3cyclictest16502-21cat07:45:161
314029962,3cyclictest11655-21cat07:35:141
314029962,3cyclictest1011-21apt-get12:00:131
314029960,4cyclictest10725-21idleruntime-cro07:35:011
314029960,2cyclictest14634-21ntp_states10:05:181
314029960,2cyclictest12203-21munin-run12:25:001
313989965,1cyclictest12-21ksoftirqd/007:15:010
313989965,0cyclictest23270-21diskstats10:25:120
313989963,2cyclictest658-21snmpd08:22:210
313989963,2cyclictest504-21dbus-daemon11:25:200
313989963,2cyclictest504-21dbus-daemon09:07:040
313989963,2cyclictest504-21dbus-daemon08:13:410
313989963,2cyclictest28223-21uname10:35:150
313989963,2cyclictest10967-21tail08:45:140
313989962,3cyclictest7236-21sed07:25:160
313989962,3cyclictest658-21snmpd12:13:000
313989962,3cyclictest658-21snmpd12:01:540
313989962,3cyclictest658-21snmpd11:55:370
313989962,3cyclictest658-21snmpd11:54:430
313989962,3cyclictest658-21snmpd11:36:090
313989962,3cyclictest658-21snmpd11:34:060
313989962,3cyclictest658-21snmpd11:21:450
313989962,3cyclictest658-21snmpd11:18:240
313989962,3cyclictest658-21snmpd10:44:220
313989962,3cyclictest658-21snmpd10:16:490
313989962,3cyclictest658-21snmpd10:14:580
313989962,3cyclictest658-21snmpd10:01:490
313989962,3cyclictest658-21snmpd09:36:070
313989962,3cyclictest658-21snmpd08:51:100
313989962,3cyclictest658-21snmpd08:40:220
313989962,3cyclictest658-21snmpd08:30:570
313989962,3cyclictest658-21snmpd08:25:270
313989962,3cyclictest658-21snmpd08:06:140
313989962,3cyclictest658-21snmpd08:01:290
313989962,3cyclictest658-21snmpd07:40:390
313989962,3cyclictest658-21snmpd07:36:210
313989962,3cyclictest658-21snmpd07:33:270
313989962,3cyclictest11784-21cat11:10:150
313989962,2cyclictest275-21systemd-journal09:19:090
314119952,2cyclictest13787-21cpuspeed_turbos10:05:143
314119952,1cyclictest141rcu_preempt08:25:143
314119951,2cyclictest275-21systemd-journal11:05:013
314119950,1cyclictest34-21ksoftirqd/308:35:023
314069953,1cyclictest9549-21cat09:55:122
314069953,1cyclictest31297-21cut11:55:112
314069953,1cyclictest19081-21sed07:50:172
314069953,1cyclictest11606-21grep10:00:132
314069952,2cyclictest6932-21expr11:00:132
314069952,2cyclictest658-21snmpd12:25:142
314069952,2cyclictest658-21snmpd12:13:282
314069952,2cyclictest658-21snmpd12:00:012
314069952,2cyclictest658-21snmpd11:40:352
314069952,2cyclictest658-21snmpd11:30:022
314069952,2cyclictest658-21snmpd10:40:082
314069952,2cyclictest658-21snmpd08:55:372
314069952,2cyclictest504-21dbus-daemon10:50:022
314069952,2cyclictest4127-21interrupts08:30:142
314069952,2cyclictest3213-21cat09:40:142
314069952,2cyclictest32078-21if_enp4s008:20:182
314069952,2cyclictest31399-21ntpq09:30:182
314069952,2cyclictest27415-21cat11:45:162
314069952,2cyclictest26704-21taskset10:30:392
314069952,2cyclictest22547-21ls11:35:112
314069952,2cyclictest20857-21cut10:20:162
314069952,2cyclictest18711-21cat10:15:122
314069952,2cyclictest12628-21chrt08:50:092
314069952,2cyclictest1-21systemd07:20:092
314069952,2cyclictest1-21systemd07:20:092
314069951,3cyclictest504-21dbus-daemon08:35:002
314069951,3cyclictest3054-21ls07:15:182
314069951,3cyclictest275-21systemd-journal09:05:322
314069951,3cyclictest25393-21cat08:05:142
314069951,3cyclictest23394-21gltestperf10:25:142
314069951,3cyclictest11324-21expr07:35:122
314069950,4cyclictest22733-21expr08:00:152
314069950,3cyclictest275-21systemd-journal09:53:212
314029953,1cyclictest12148-21head11:10:171
314029952,2cyclictest658-21snmpd12:38:041
314029952,2cyclictest658-21snmpd10:40:011
314029952,2cyclictest658-21snmpd09:55:571
314029952,2cyclictest658-21snmpd07:55:091
314029952,2cyclictest652-21chrt09:35:121
314029952,2cyclictest27538-21cat10:35:111
314029952,2cyclictest275-21systemd-journal08:40:001
314029952,2cyclictest2690-21unixbench_multi08:25:181
314029952,2cyclictest25326-21expr10:30:151
314029952,2cyclictest24611-21cat09:15:161
314029952,2cyclictest24511-21cat11:40:091
314029952,2cyclictest22833-21expr08:00:151
314029952,2cyclictest21681-21cpuspeed_turbos09:10:131
314029952,2cyclictest19370-21chrt11:25:361
314029952,2cyclictest12665-21ls12:25:131
314029952,2cyclictest11905-21cut10:00:141
314029951,3cyclictest658-21snmpd11:05:071
314029951,3cyclictest658-21snmpd10:15:041
314029951,3cyclictest658-21snmpd09:45:111
314029951,3cyclictest4869-21expr07:20:151
314029951,3cyclictest4869-21expr07:20:151
314029951,3cyclictest3299-21cat12:05:111
314029951,3cyclictest32105-21cat08:20:171
314029951,3cyclictest31615-21wc09:30:191
314029951,3cyclictest15628-21if_enp4s012:30:151
314029951,3cyclictest13513-21expr08:50:161
314029950,4cyclictest28615-21sshd09:25:121
314029950,4cyclictest28038-21expr11:45:211
314029950,4cyclictest10414-21/usr/sbin/munin08:45:171
314029950,1cyclictest674-21lldpd10:50:121
313989953,1cyclictest0-21swapper/007:45:110
313989952,2cyclictest9029-21grep11:05:130
313989952,2cyclictest7171-21tune2fs11:00:160
313989952,2cyclictest658-21snmpd09:50:100
313989952,2cyclictest658-21snmpd09:30:040
313989952,2cyclictest6238-21expr08:35:110
313989952,2cyclictest5701-21wc07:20:220
313989952,2cyclictest5701-21wc07:20:210
313989952,2cyclictest4404-21chrt10:55:130
313989952,2cyclictest32752-21sh10:45:160
313989952,2cyclictest29635-21fschecks_time08:15:140
313989952,2cyclictest2774-21expr09:40:130
313989952,2cyclictest21828-21grep10:20:200
313989952,2cyclictest18026-21taskset07:50:070
313989952,2cyclictest1555-21tail07:15:010
313989951,3cyclictest658-21snmpd09:55:310
313989951,3cyclictest658-21snmpd09:45:060
313989951,3cyclictest4684-21grep12:05:180
313989951,3cyclictest26720-21/usr/sbin/munin11:45:140
313989951,3cyclictest26544-21cut11:45:010
313989951,3cyclictest15179-21seq12:30:130
313989951,3cyclictest14850-21/usr/sbin/munin08:55:160
313989951,3cyclictest1-21systemd10:30:070
313989951,3cyclictest10892-21cat12:20:150
313989950,4cyclictest18431-21wc09:00:190
313989950,3cyclictest275-21systemd-journal12:25:460
313989950,3cyclictest275-21systemd-journal09:30:000
314069940,3cyclictest28937-21/usr/sbin/munin11:50:122
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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