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2025-12-24 - 19:22
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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 highest latencies:
System rackdslot0.osadl.org (updated Wed Dec 24, 2025 12:45:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2303999230,22cyclictest13004-21wc10:40:130
2304999225,16cyclictest3976-21H222:10:212
2303999222,2cyclictest3981-21H222:10:210
23039992214,7cyclictest17082-21expr11:45:140
23039992214,7cyclictest0-21swapper/008:26:150
23039992214,7cyclictest0-21swapper/007:35:180
2303999220,2cyclictest5485-21latency_hist11:25:010
2303999220,21cyclictest6447-21chrt08:34:120
2303999220,21cyclictest21236-21chrt08:01:120
2303999220,16cyclictest5516-21expr12:20:140
2303999220,16cyclictest20068-21cat11:50:130
23049992117,3cyclictest0-21swapper/212:27:232
2304999210,3cyclictest0-21swapper/212:03:212
23039992114,6cyclictest8868-21chrt10:31:050
23039992114,6cyclictest24829-21kernelversion11:00:170
23039992114,6cyclictest1914-21chrt11:15:250
23039992114,6cyclictest14615-21nvmesmart_nvme012:35:200
23039992114,6cyclictest0-21swapper/011:59:020
23039992114,6cyclictest0-21swapper/011:35:000
23039992114,6cyclictest0-21swapper/010:01:130
23039992114,6cyclictest0-21swapper/009:16:440
23039992114,6cyclictest0-21swapper/008:10:140
23039992113,7cyclictest12346-21cut08:45:010
2303999211,1cyclictest300252sleep010:12:470
2303999211,19cyclictest0-21swapper/010:10:010
2303999210,2cyclictest9910-21apt-config10:35:020
2303999210,2cyclictest29344-21awk08:15:190
2303999210,2cyclictest19530-21sed10:50:190
2303999210,20cyclictest0-21swapper/007:30:140
2303999210,1cyclictest3979-21H222:10:210
2303999210,1cyclictest0-21swapper/009:45:200
2303999210,1cyclictest0-21swapper/009:20:150
2303999210,1cyclictest0-21swapper/008:50:190
2303999210,16cyclictest9395-21cat12:25:220
2303999210,15cyclictest22979-21timerwakeupswit10:55:210
2303999210,15cyclictest13779-21nfsd408:45:180
2303999210,15cyclictest0-21swapper/011:10:110
2304999202,17cyclictest0-21swapper/209:30:172
23049992018,1cyclictest28-21ksoftirqd/210:47:202
23049992018,1cyclictest28-21ksoftirqd/210:47:202
23049992013,3cyclictest0-21swapper/209:51:142
2304499202,17cyclictest0-21swapper/107:44:351
2304499202,17cyclictest0-21swapper/107:44:351
23039992014,5cyclictest9577-21missed_timers09:35:220
23039992014,5cyclictest3976-21H222:10:210
23039992014,5cyclictest0-21swapper/009:15:010
23039992014,5cyclictest0-21swapper/008:05:140
23039992014,0cyclictest0-21swapper/007:45:180
23039992013,6cyclictest26603-21expr07:15:150
23039992012,2cyclictest31892-21expr12:10:140
2303999200,1cyclictest14199-21cpuspeed_turbos11:40:120
2303999200,1cyclictest0-21swapper/009:40:140
2303999200,1cyclictest0-21swapper/009:25:140
2303999200,1cyclictest0-21swapper/007:25:160
2303999200,19cyclictest0-21swapper/012:30:150
2303999200,19cyclictest0-21swapper/007:10:170
2303999200,18cyclictest0-21swapper/012:15:200
2303999200,16cyclictest6056-21cat11:25:140
2303999200,16cyclictest16557-21grep07:55:140
2303999200,15cyclictest29709-21/usr/sbin/munin07:20:190
2303999200,15cyclictest22410-21expr09:00:200
2303999200,15cyclictest22410-21expr09:00:190
2303999200,15cyclictest0-21swapper/008:55:160
2303999200,14cyclictest0-21swapper/010:48:520
2303999200,14cyclictest0-21swapper/010:48:520
2303999200,14cyclictest0-21swapper/010:25:160
2303999200,0cyclictest0-21swapper/009:05:150
2304999192,3cyclictest0-21swapper/210:07:402
23049991916,2cyclictest27527-21idleruntime09:10:152
2304999190,16cyclictest3985-21H222:10:212
23044991916,2cyclictest3981-21H222:10:211
2304499191,3cyclictest23908-21egrep09:05:121
2304499191,17cyclictest3989-21H222:10:211
2304499191,17cyclictest0-21swapper/111:26:121
2304499190,3cyclictest0-21swapper/111:15:141
2304499190,3cyclictest0-21swapper/109:00:171
2304499190,3cyclictest0-21swapper/109:00:171
2304499190,16cyclictest3985-21H222:10:211
23039991914,4cyclictest0-21swapper/012:05:150
23039991913,5cyclictest3989-21H222:10:210
23039991913,5cyclictest3981-21H222:10:210
23039991913,0cyclictest0-21swapper/007:40:200
23039991913,0cyclictest0-21swapper/007:40:200
23039991911,2cyclictest18282-21ps09:50:200
2303999190,1cyclictest0-21swapper/010:20:180
2303999190,1cyclictest0-21swapper/010:15:180
2303999190,18cyclictest0-21swapper/012:00:150
2303999190,18cyclictest0-21swapper/011:35:140
2303999190,0cyclictest0-21swapper/011:09:260
2304999182,15cyclictest3981-21H222:10:212
2304999182,15cyclictest28-21ksoftirqd/211:36:212
2304999182,15cyclictest0-21swapper/211:55:022
23049991816,1cyclictest0-21swapper/210:51:542
23049991816,1cyclictest0-21swapper/208:56:442
23049991815,2cyclictest4099-21H222:10:212
23049991815,2cyclictest3991-21H222:10:212
23049991815,2cyclictest20420-21nfsd408:00:182
23049991814,3cyclictest6605-21nfsd407:35:182
23049991814,3cyclictest3985-21H222:10:212
23049991814,3cyclictest3985-21H222:10:212
2304999180,3cyclictest3983-21H222:10:212
2304999180,2cyclictest3981-21H222:10:212
2304999180,16cyclictest3979-21H222:10:212
2304499182,1cyclictest90082sleep108:37:011
2304499182,15cyclictest0-21swapper/110:45:141
2304499182,15cyclictest0-21swapper/110:45:131
23044991816,1cyclictest9380-21interrupts09:35:201
23044991816,1cyclictest21-21ksoftirqd/107:11:571
23044991816,1cyclictest0-21swapper/109:33:041
23044991814,3cyclictest4099-21H222:10:211
23044991814,3cyclictest20432-21python309:00:011
23044991813,2cyclictest4035-21H222:10:211
2304499181,2cyclictest5548-21cut11:25:011
2304499181,2cyclictest31091-21systemctl09:15:221
2304499181,2cyclictest17771-21expr09:50:191
2304499180,3cyclictest28163-21sshd07:17:321
2304499180,3cyclictest13152-21cpuspeed_turbos10:40:141
2304499180,2cyclictest3991-21H222:10:211
2304499180,17cyclictest3987-21H222:10:211
2304499180,17cyclictest3983-21H222:10:211
2304499180,17cyclictest2544-21grep07:30:151
2304499180,17cyclictest23496-21awk11:55:201
2304499180,15cyclictest6587-21cat10:30:011
2304999172,1cyclictest28-21ksoftirqd/209:40:482
2304999172,15cyclictest0-21swapper/210:40:162
23049991714,2cyclictest399-20systemd-journal12:17:002
23049991714,2cyclictest3981-21H222:10:212
23049991714,2cyclictest3981-21H222:10:212
23049991714,2cyclictest29879-21chrt10:10:482
23049991714,2cyclictest27301-21nfsd407:15:182
23049991714,2cyclictest15561-21sed07:50:202
2304999170,2cyclictest3983-21H222:10:212
2304999170,2cyclictest3979-21H222:10:212
2304999170,2cyclictest3979-21H222:10:212
2304999170,2cyclictest3976-21H222:10:212
2304999170,2cyclictest3976-21H222:10:212
2304999170,2cyclictest24861-21pzem_voltage07:10:182
2304999170,2cyclictest2007-21systemd-journal09:26:342
2304999170,2cyclictest15967-21fschecks_time08:50:152
2304999170,2cyclictest11707-21fschecks_time07:45:152
2304999170,16cyclictest5554-21sed11:25:012
2304999170,16cyclictest3989-21H222:10:212
2304999170,16cyclictest3989-21H222:10:212
2304999170,16cyclictest3983-21H222:10:212
2304999170,16cyclictest3983-21H222:10:212
2304999170,16cyclictest30360-21/usr/sbin/munin07:20:242
2304999170,16cyclictest30263-21cron08:20:012
2304999170,16cyclictest29477-21/usr/sbin/munin09:15:182
2304999170,16cyclictest23570-21nfsd408:05:182
2304999170,16cyclictest21153-21apache_volume10:55:122
2304999170,16cyclictest2037-21sh11:17:012
2304999170,16cyclictest16047-21vmstat09:45:212
2304999170,16cyclictest15608-21processes11:40:182
2304999170,16cyclictest1079-21cups-browsed10:00:232
2304999170,16cyclictest10734-21cstates12:30:142
2304999170,16cyclictest0-21swapper/211:12:122
2304999170,16cyclictest0-21swapper/210:15:202
2304499172,1cyclictest21-21ksoftirqd/110:58:271
2304499172,1cyclictest21-21ksoftirqd/109:22:221
23044991714,2cyclictest6105-21missed_timers12:20:171
23044991714,2cyclictest4099-21H222:10:211
23044991714,2cyclictest3979-21H222:10:211
23044991714,2cyclictest32004-21ntpq10:15:181
23044991714,2cyclictest19914-21expr09:55:141
23044991714,2cyclictest18408-21/usr/sbin/munin10:50:171
23044991713,3cyclictest3991-21H222:10:211
2304499171,16cyclictest3981-21H222:10:211
2304499171,15cyclictest301092sleep108:17:551
2304499171,15cyclictest30014-21nfsd407:20:211
2304499170,2cyclictest7366-21expr10:30:151
2304499170,2cyclictest3985-21H222:10:211
2304499170,2cyclictest28157-21ntp_offset09:10:181
2304499170,2cyclictest27770-21needreboot11:05:171
2304499170,2cyclictest22257-21sh08:05:011
2304499170,2cyclictest19307-21cpuspeed_turbos08:00:141
2304499170,2cyclictest1761-21systemd11:48:511
2304499170,2cyclictest15251-21needreboot11:40:161
2304499170,1cyclictest3979-21H222:10:211
2304499170,1cyclictest0-21swapper/110:10:121
2304499170,16cyclictest4099-21H222:10:211
2304499170,16cyclictest3981-21H222:10:211
2304499170,16cyclictest30777-21python312:10:011
2304499170,16cyclictest2930-21cpuspeed_turbos09:25:141
2304499170,16cyclictest14694-21expr07:50:161
2304499170,16cyclictest11198-21http_loadtime12:30:161
2304499170,16cyclictest11187-21/usr/sbin/munin11:35:211
2304499170,16cyclictest0-21swapper/112:38:301
2304499170,16cyclictest0-21swapper/112:17:021
2304499170,16cyclictest0-21swapper/112:00:021
23049991614,1cyclictest17122-21fschecks_count07:55:162
23049991614,1cyclictest0-21swapper/211:45:182
23049991614,1cyclictest0-21swapper/211:28:572
23049991614,1cyclictest0-21swapper/209:55:082
23049991614,1cyclictest0-21swapper/209:35:162
2304999160,15cyclictest32421-21kernelversion12:10:182
2304999160,15cyclictest0-21swapper/211:05:192
2304999160,15cyclictest0-21swapper/211:02:452
2304999160,15cyclictest0-21swapper/210:25:082
2304999160,15cyclictest0-21swapper/208:25:142
2304999160,15cyclictest0-21swapper/208:20:132
23044991614,1cyclictest23970-21cpuspeed_turbos11:00:141
23044991614,1cyclictest0-21swapper/108:31:321
23044991614,1cyclictest0-21swapper/107:45:081
2304499160,15cyclictest8147-21expr12:25:141
2304499160,15cyclictest32484-21df07:25:141
2304499160,15cyclictest26452-21awk08:10:191
2304499160,15cyclictest22291-21chrt10:00:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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