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2025-12-17 - 17:14
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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
Characteristics of the 376 highest latencies:
System rack1slot1.osadl.org (updated Wed Dec 17, 2025 12:45:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
67812206152,21sleep10-21swapper/107:08:371
65602200161,26sleep30-21swapper/307:05:453
66512198158,26sleep20-21swapper/207:06:572
66192197159,24sleep00-21swapper/007:06:310
181532730,0sleep10-21swapper/109:45:191
324342610,0sleep20-21swapper/211:25:122
118982610,1sleep211901-21aten_r1power_cu09:35:112
276382580,0sleep30-21swapper/310:05:203
211932190,0sleep00-21swapper/012:10:110
173652120,0sleep10-21swapper/107:30:111
699199108,1cyclictest35-21ksoftirqd/308:30:003
69919999,0cyclictest35-21ksoftirqd/307:45:013
69839990,9cyclictest61650irq/122-eno112:25:072
69699990,4cyclictest23686-21apt-get10:00:110
69919987,1cyclictest35-21ksoftirqd/310:52:003
69919986,1cyclictest707-21snmpd11:37:133
69919986,1cyclictest707-21snmpd10:31:503
69919986,1cyclictest707-21snmpd09:55:553
69919986,1cyclictest707-21snmpd09:52:223
69919986,1cyclictest707-21snmpd09:21:063
69919986,1cyclictest707-21snmpd09:18:153
69919986,1cyclictest707-21snmpd08:43:293
69919986,1cyclictest707-21snmpd08:19:103
69919985,1cyclictest13650irq/124-ahci[0008:14:553
69919980,4cyclictest685-21apt-get10:20:103
69839987,1cyclictest28-21ksoftirqd/212:05:002
69839987,1cyclictest11918-21mailstats10:40:192
69839986,2cyclictest707-21snmpd11:59:162
69839986,1cyclictest61650irq/122-eno111:30:202
69839986,1cyclictest61650irq/122-eno109:50:102
69839986,1cyclictest28-21ksoftirqd/208:02:452
69839981,1cyclictest0-21swapper/208:48:022
69839980,7cyclictest31350-21python09:05:202
69759980,4cyclictest0-21swapper/109:50:101
69759980,0cyclictest0-21swapper/111:28:171
69699987,1cyclictest22424-21telnet11:05:120
69699986,1cyclictest707-21snmpd09:47:120
69699980,7cyclictest2270-21perf12:40:010
69699980,7cyclictest1631-21/usr/sbin/munin08:05:110
69919975,1cyclictest707-21snmpd12:23:383
69919975,1cyclictest707-21snmpd10:48:173
69919975,1cyclictest707-21snmpd10:28:593
69919975,1cyclictest707-21snmpd09:30:243
69919975,1cyclictest707-21snmpd09:30:243
69919975,1cyclictest707-21snmpd09:03:443
69919975,1cyclictest707-21snmpd08:20:163
69919975,1cyclictest707-21snmpd07:15:123
69919975,1cyclictest35-21ksoftirqd/311:10:003
69919975,1cyclictest35-21ksoftirqd/309:30:003
69919975,1cyclictest35-21ksoftirqd/309:12:003
69919975,1cyclictest35-21ksoftirqd/307:30:103
69919970,1cyclictest240-21systemd-journal12:30:003
69839976,1cyclictest707-21snmpd11:14:242
69839976,1cyclictest707-21snmpd08:12:162
69839976,1cyclictest61650irq/122-eno111:40:012
69839976,1cyclictest61650irq/122-eno111:15:182
69839976,1cyclictest61650irq/122-eno110:23:092
69839976,1cyclictest61650irq/122-eno110:00:112
69839976,1cyclictest61650irq/122-eno108:55:082
69839976,1cyclictest61650irq/122-eno108:50:002
69839975,2cyclictest23432-21systemctl10:00:002
69839975,1cyclictest8322-21ntpq09:25:182
69839975,1cyclictest707-21snmpd07:55:222
69839975,1cyclictest707-21snmpd07:37:242
69839975,1cyclictest21104-21ntpq11:00:172
69839974,1cyclictest240-21systemd-journal10:20:002
69839971,5cyclictest29718-21munin-plugin-st09:05:002
69839970,6cyclictest0-21swapper/208:05:462
69839970,4cyclictest0-21swapper/209:10:122
69759971,6cyclictest0-21swapper/112:34:561
69759970,3cyclictest0-21swapper/110:25:091
69759970,3cyclictest0-21swapper/110:20:121
69759970,2cyclictest0-21swapper/112:25:121
69759970,1cyclictest0-21swapper/108:57:201
69699976,1cyclictest707-21snmpd12:17:060
69699975,2cyclictest3150350/usr/sbin/munin08:00:180
69699975,1cyclictest707-21snmpd10:35:020
69699975,1cyclictest707-21snmpd08:59:170
69699975,1cyclictest25496-21/usr/sbin/munin12:20:160
69699974,2cyclictest2838950/usr/sbin/munin10:10:160
69699970,6cyclictest682-21/usr/sbin/munin10:20:170
69699970,6cyclictest5604-21/usr/sbin/munin10:30:190
69699970,6cyclictest5410-21ntp_states11:35:180
69699970,6cyclictest30743-21/usr/sbin/munin10:15:130
69699970,6cyclictest30416-21memory11:20:160
69699970,6cyclictest29946-21/usr/sbin/munin09:05:130
69699970,6cyclictest27977-21telnet12:25:130
69699970,6cyclictest26844-21aten2.4-expect07:50:110
69699970,6cyclictest1896-21/usr/sbin/munin11:30:150
69699970,6cyclictest17301-21/usr/sbin/munin07:30:170
69699970,6cyclictest15790-21/usr/sbin/munin08:35:140
69699970,6cyclictest15589-21expr10:50:120
69699970,6cyclictest14452-21grep11:55:140
69699970,6cyclictest14253-21/usr/sbin/munin09:40:140
69699970,6cyclictest14059-21ntp_states10:45:160
69699970,6cyclictest12598-21/usr/sbin/munin07:20:140
69699970,6cyclictest11880-21/usr/sbin/munin09:35:130
69699970,6cyclictest11635-21uname10:40:170
69699970,6cyclictest0-21swapper/011:25:120
69699970,6cyclictest0-21swapper/011:00:110
69699970,6cyclictest0-21swapper/008:20:130
69699970,3cyclictest13497-21perf11:55:000
69699970,1cyclictest8982-21/usr/sbin/munin11:45:180
69699970,1cyclictest7182-21/usr/sbin/munin07:10:210
69699970,1cyclictest707-21snmpd09:11:310
69699970,1cyclictest27098-21telnet11:15:120
69699970,1cyclictest24426-21/usr/sbin/munin07:45:120
69699970,1cyclictest21308-21/usr/sbin/munin09:55:180
69699970,1cyclictest20515-21/usr/sbin/munin08:45:170
69699970,1cyclictest14950-21/usr/sbin/munin07:25:140
69699970,1cyclictest101rcuc/010:30:010
69699970,1cyclictest0-21swapper/011:40:190
69699970,1cyclictest0-21swapper/010:55:140
69699970,1cyclictest0-21swapper/009:27:420
69919965,1cyclictest707-21snmpd12:17:203
69919965,1cyclictest707-21snmpd12:11:433
69919965,1cyclictest707-21snmpd11:56:013
69919965,1cyclictest707-21snmpd10:38:503
69919965,1cyclictest32381-21cat08:00:153
69919965,1cyclictest20863-21cat11:00:163
69919964,1cyclictest707-21snmpd12:06:313
69919964,1cyclictest707-21snmpd12:00:403
69919964,1cyclictest707-21snmpd07:35:393
69919964,1cyclictest1270-21users11:25:203
69919962,2cyclictest0-21swapper/311:20:193
69919961,4cyclictest769-21lldpd08:37:073
69919961,3cyclictest22867-21/usr/sbin/munin08:50:143
69919960,4cyclictest0-21swapper/309:05:123
69919960,4cyclictest0-21swapper/307:45:113
69919960,2cyclictest28440-21python11:15:203
69839966,0cyclictest61650irq/122-eno112:30:102
69839966,0cyclictest61650irq/122-eno111:21:242
69839966,0cyclictest61650irq/122-eno110:48:552
69839966,0cyclictest61650irq/122-eno110:10:152
69839966,0cyclictest61650irq/122-eno109:34:082
69839966,0cyclictest61650irq/122-eno109:34:082
69839966,0cyclictest61650irq/122-eno109:20:142
69839966,0cyclictest61650irq/122-eno109:19:462
69839966,0cyclictest61650irq/122-eno108:43:442
69839966,0cyclictest61650irq/122-eno108:15:162
69839966,0cyclictest61650irq/122-eno107:50:182
69839965,1cyclictest61650irq/122-eno112:15:092
69839965,0cyclictest61650irq/122-eno109:45:122
69839965,0cyclictest61650irq/122-eno108:30:122
69839964,1cyclictest61650irq/122-eno112:35:112
69839964,1cyclictest61650irq/122-eno107:45:152
69839964,1cyclictest20768-21apt-get12:10:102
69839963,2cyclictest26040-21apt-get10:05:112
69839961,4cyclictest9329-21munin-node12:05:102
69839961,2cyclictest0-21swapper/207:25:112
69839961,1cyclictest9229-21df08:20:132
69839960,6cyclictest0-21swapper/211:54:312
69839960,6cyclictest0-21swapper/211:07:362
69839960,5cyclictest0-21swapper/211:43:222
69839960,5cyclictest0-21swapper/210:34:472
69839960,5cyclictest0-21swapper/209:41:512
69839960,1cyclictest0-21swapper/207:20:112
69759960,6cyclictest0-21swapper/112:17:231
69759960,6cyclictest0-21swapper/111:58:161
69759960,6cyclictest0-21swapper/111:54:581
69759960,6cyclictest0-21swapper/111:21:221
69759960,6cyclictest0-21swapper/110:58:581
69759960,6cyclictest0-21swapper/109:43:091
69759960,6cyclictest0-21swapper/109:29:571
69759960,6cyclictest0-21swapper/108:49:201
69759960,6cyclictest0-21swapper/107:45:151
69759960,6cyclictest0-21swapper/107:40:571
69759960,6cyclictest0-21swapper/107:25:191
69759960,5cyclictest0-21swapper/112:06:281
69759960,5cyclictest0-21swapper/112:00:151
69759960,5cyclictest0-21swapper/107:15:141
69759960,4cyclictest0-21swapper/111:35:121
69759960,4cyclictest0-21swapper/107:35:121
69759960,3cyclictest0-21swapper/108:20:101
69759960,1cyclictest0-21swapper/111:09:451
69759960,1cyclictest0-21swapper/108:39:321
69759960,1cyclictest0-21swapper/107:50:141
69699966,0cyclictest10344-21telnet07:15:110
69699965,1cyclictest707-21snmpd12:31:470
69699965,1cyclictest27688-21telnet09:00:120
69699961,5cyclictest18319-21telnet08:40:120
69699961,2cyclictest0-21swapper/008:25:120
69699960,6cyclictest0-21swapper/012:00:140
69699960,6cyclictest0-21swapper/011:10:040
69699960,6cyclictest0-21swapper/008:50:080
69699960,6cyclictest0-21swapper/008:30:130
69699960,6cyclictest0-21swapper/008:15:120
69699960,6cyclictest0-21swapper/007:40:200
69699960,5cyclictest4814-21/usr/sbin/munin09:20:150
69699960,5cyclictest3989-21/usr/sbin/munin08:10:160
69699960,5cyclictest20047-21cstates07:35:140
69699960,5cyclictest0-21swapper/007:55:120
69699960,1cyclictest26036-21/usr/sbin/munin10:05:130
69699960,1cyclictest10034-21df_inode09:30:130
69699960,1cyclictest10034-21df_inode09:30:130
69699960,0cyclictest0-21swapper/012:05:120
69699960,0cyclictest0-21swapper/009:50:120
69699960,0cyclictest0-21swapper/009:16:120
69919954,1cyclictest707-21snmpd12:35:053
69919954,1cyclictest707-21snmpd09:42:573
69919954,1cyclictest18007-21sensors09:45:183
69919954,1cyclictest15465-21sshd08:34:003
69919953,1cyclictest707-21snmpd09:36:003
69919953,1cyclictest27916-21ntpq07:50:163
69919952,2cyclictest0-21swapper/307:15:003
69919951,3cyclictest9332-21kworker/3:108:05:123
69919951,1cyclictest16183-21tr07:25:183
69919950,4cyclictest0-21swapper/310:15:143
69919950,0cyclictest0-21swapper/310:55:123
69839955,0cyclictest61650irq/122-eno112:20:092
69839955,0cyclictest61650irq/122-eno110:55:032
69839955,0cyclictest61650irq/122-eno110:25:012
69839955,0cyclictest61650irq/122-eno107:30:112
69839955,0cyclictest61650irq/122-eno107:15:112
69839955,0cyclictest0-21swapper/207:10:002
69839953,1cyclictest9249-21tr11:45:122
69839953,1cyclictest16189-21cat10:50:152
69839953,1cyclictest16059-21cut08:35:132
69839953,1cyclictest0-21swapper/210:35:132
69839950,4cyclictest11083-21/usr/sbin/munin08:25:212
69839950,2cyclictest240-21systemd-journal07:45:012
69759952,1cyclictest0-21swapper/109:05:181
69759951,3cyclictest0-21swapper/112:35:111
69759951,2cyclictest0-21swapper/110:00:131
69759950,5cyclictest0-21swapper/112:12:551
69759950,5cyclictest0-21swapper/111:03:111
69759950,5cyclictest0-21swapper/110:14:111
69759950,5cyclictest0-21swapper/109:22:561
69759950,5cyclictest0-21swapper/109:00:071
69759950,5cyclictest0-21swapper/108:40:111
69759950,5cyclictest0-21swapper/108:33:261
69759950,5cyclictest0-21swapper/108:11:011
69759950,5cyclictest0-21swapper/108:06:041
69759950,5cyclictest0-21swapper/107:59:501
69759950,5cyclictest0-21swapper/107:24:371
69759950,5cyclictest0-21swapper/107:11:061
69759950,4cyclictest0-21swapper/110:44:321
69759950,0cyclictest0-21swapper/111:41:121
69919944,0cyclictest707-21snmpd11:52:023
69919943,1cyclictest707-21snmpd08:56:293
69919943,1cyclictest28742-21expr10:10:133
69919943,1cyclictest25686-21missed_timers11:10:153
69919943,0cyclictest6624-21apt-get11:40:103
69919942,2cyclictest10544-21apt-get10:40:123
69919942,1cyclictest693-21runrttasks10:01:503
69919942,1cyclictest31245-21missed_timers12:30:163
69919942,1cyclictest21784-21proc_pri08:45:193
69919942,1cyclictest13238-21tune2fs07:20:143
69919942,1cyclictest0-21swapper/311:45:123
69919940,1cyclictest30052-21kernelversion07:55:173
69759943,1cyclictest29084-21chrt11:19:141
69759943,1cyclictest170472sleep110:51:031
69759942,1cyclictest12901-21chrt10:45:101
69759941,2cyclictest0-21swapper/111:45:101
69759941,2cyclictest0-21swapper/109:55:101
69759941,2cyclictest0-21swapper/108:25:201
69759941,1cyclictest0-21swapper/110:35:011
69759941,1cyclictest0-21swapper/109:35:111
69759940,4cyclictest0-21swapper/110:16:481
69759940,3cyclictest28118-21taskset10:09:421
69759940,3cyclictest0-21swapper/109:15:101
69759940,2cyclictest0-21swapper/112:20:091
69759940,2cyclictest0-21swapper/111:30:161
69759940,1cyclictest0-21swapper/110:35:011
69759940,0cyclictest0-21swapper/108:50:211
69759940,0cyclictest0-21swapper/108:15:191
10052240,0sleep10-21swapper/109:30:131
10052240,0sleep10-21swapper/109:30:131
69919932,1cyclictest1893-21chrt11:30:103
69759931,1cyclictest0-21swapper/108:00:111
69759930,3cyclictest0-21swapper/111:10:091
69759930,1cyclictest0-21swapper/109:10:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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