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2025-12-21 - 14:03
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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 rackdslot0.osadl.org (updated Sun Dec 21, 2025 00:46:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
32164992213,4cyclictest0-21swapper/223:25:122
3216499214,11cyclictest27743-21munin-run20:55:012
3216299212,18cyclictest23452-21awk00:35:000
3216299212,18cyclictest23452-21awk00:34:590
32162992119,1cyclictest23460-21kworker/0:222:50:440
32164992017,2cyclictest2069-21systemd-udevd22:58:522
32164992016,3cyclictest0-21swapper/219:50:082
3216299200,17cyclictest0-21swapper/000:10:190
3216499193,15cyclictest28-21ksoftirqd/222:08:302
3216499193,15cyclictest0-21swapper/221:12:092
3216499192,16cyclictest23757-21munin-run00:35:012
3216499192,16cyclictest23757-21munin-run00:35:012
32164991917,1cyclictest0-21swapper/220:20:162
32164991915,1cyclictest0-21swapper/221:05:452
3216499190,17cyclictest20168-21nfsd423:30:172
3216499190,16cyclictest4035-21H222:10:212
3216399192,2cyclictest3982-21H222:10:211
3216399192,1cyclictest0-21swapper/119:28:051
3216399192,16cyclictest0-21swapper/119:53:441
32163991915,3cyclictest0-21swapper/119:20:591
32163991914,2cyclictest4035-21H222:10:211
3216399191,16cyclictest0-21swapper/122:55:201
3216399191,16cyclictest0-21swapper/119:45:001
3216299197,11cyclictest0-21swapper/019:37:410
32162991917,1cyclictest9-21ksoftirqd/023:31:520
3216299190,18cyclictest0-21swapper/023:12:450
3216299190,16cyclictest4099-21H222:10:210
3216299190,16cyclictest3983-21H222:10:210
3216499182,1cyclictest13792-21pluginstate22:20:182
3216499182,15cyclictest28-21ksoftirqd/223:49:362
3216499182,15cyclictest0-21swapper/221:40:152
32164991816,1cyclictest28-21ksoftirqd/200:16:192
32164991815,2cyclictest16351-21ntp_offset19:35:202
32164991815,1cyclictest4099-21H222:10:212
32164991814,3cyclictest3976-21H222:10:212
3216499180,2cyclictest4035-21H222:10:212
3216499180,2cyclictest3979-21H222:10:212
3216499180,2cyclictest3979-21H222:10:212
3216499180,17cyclictest3979-21H222:10:212
3216499180,15cyclictest3976-21H222:10:212
3216399182,1cyclictest10102-21date21:20:011
3216399182,1cyclictest0-21swapper/122:30:141
3216399182,15cyclictest21-21ksoftirqd/120:10:321
32163991816,1cyclictest21-21ksoftirqd/123:18:211
32163991816,1cyclictest0-21swapper/120:44:521
32163991815,2cyclictest10229-21fschecks_count22:15:151
32163991815,2cyclictest0-21swapper/100:01:181
32163991814,3cyclictest4035-21H222:10:211
32163991814,3cyclictest3991-21H222:10:211
3216399181,3cyclictest0-21swapper/122:37:301
3216399181,2cyclictest0-21swapper/122:05:101
3216399181,15cyclictest26300-21tr19:55:151
3216399180,4cyclictest3725-21ntpq23:00:201
3216399180,3cyclictest26679-21tr20:50:181
3216399180,3cyclictest0-21swapper/120:24:431
3216399180,2cyclictest3991-21H222:10:211
3216399180,15cyclictest3989-21H222:10:211
3216299182,1cyclictest293272chrt23:46:130
32162991816,1cyclictest9-21ksoftirqd/023:50:280
32162991816,1cyclictest9-21ksoftirqd/000:03:050
32162991816,1cyclictest3981-21H222:10:210
32162991814,3cyclictest1522-21lxd19:48:470
3216299181,16cyclictest9424-21munin-plugin-st19:25:020
3216299180,3cyclictest3976-21H222:10:210
3216299180,2cyclictest3983-21H222:10:210
3216299180,17cyclictest843-21systemd-network23:25:420
3216499172,1cyclictest6628-21ntpq20:15:222
32164991716,1cyclictest28-21ksoftirqd/222:32:102
32164991716,1cyclictest0-21swapper/222:50:452
32164991715,1cyclictest12144-21latency_hist19:30:012
32164991715,1cyclictest0-21swapper/223:40:152
32164991715,1cyclictest0-21swapper/220:55:342
32164991714,2cyclictest8209-21nvmesmart_nvme019:20:192
32164991714,2cyclictest4099-21H222:10:212
32164991714,2cyclictest31850-21ntp_offset21:55:192
32164991714,2cyclictest31685-21grep23:50:162
32164991714,2cyclictest2609-21sort23:55:212
32164991714,2cyclictest22578-21/usr/sbin/munin20:45:162
32164991714,2cyclictest12380-21chrt21:21:512
32164991714,1cyclictest0-21swapper/220:00:202
3216499171,15cyclictest179002sleep200:24:022
3216499170,2cyclictest5807-21timerandwakeup19:15:222
3216499170,2cyclictest3979-21H222:10:212
3216499170,2cyclictest3979-21H222:10:212
3216499170,2cyclictest3976-21H222:10:212
3216499170,2cyclictest20252-21perf19:45:012
3216499170,2cyclictest12526-21nvmesmart_nvme020:25:242
3216499170,2cyclictest12164-21chrt00:10:332
3216499170,1cyclictest3983-21H222:10:212
3216499170,1cyclictest0-21swapper/223:21:442
3216499170,16cyclictest9540-21chrt21:15:332
3216499170,16cyclictest4099-21H222:10:212
3216499170,16cyclictest3991-21H222:10:212
3216499170,16cyclictest3987-21H222:10:212
3216499170,16cyclictest2069-21systemd-udevd22:14:522
3216499170,16cyclictest15603-21gpgv21:30:012
3216499170,16cyclictest1551-21snapd22:40:082
3216499170,16cyclictest0-21swapper/220:44:222
32163991715,1cyclictest0-21swapper/123:06:551
32163991714,2cyclictest9552-21latency_hist22:15:001
32163991714,2cyclictest3991-21H222:10:211
32163991714,2cyclictest3991-21H222:10:211
32163991714,2cyclictest19401-21chrt20:39:451
32163991714,2cyclictest17145-21taskset19:38:341
32163991714,2cyclictest14513-21proc_pri21:25:231
32163991713,3cyclictest4099-21H222:10:211
32163991712,4cyclictest3362-21munin-run19:15:011
32163991712,4cyclictest3362-21munin-run19:15:011
3216399171,1cyclictest17795-21sendmail_mailqu21:30:221
3216399171,15cyclictest21-21ksoftirqd/123:51:101
3216399170,2cyclictest3981-21H222:10:211
3216399170,2cyclictest3976-21H222:10:211
3216399170,2cyclictest30629-21tr21:55:141
3216399170,2cyclictest25721-21which21:45:151
3216399170,2cyclictest24345-21latency_hist21:44:591
3216399170,2cyclictest20715-21munin-run00:29:591
3216399170,2cyclictest15458-21expr22:25:141
3216399170,16cyclictest878-21in:imuxsock20:08:591
3216399170,16cyclictest878-21in:imuxsock20:08:591
3216399170,16cyclictest8088-21grep23:10:131
3216399170,16cyclictest4035-21H222:10:211
3216399170,16cyclictest3979-21H222:10:211
3216399170,16cyclictest24057-21cron23:39:011
3216399170,16cyclictest17987-21sed23:25:221
3216399170,16cyclictest1478-21snapd21:00:091
3216399170,16cyclictest0-21swapper/120:25:261
3216399170,15cyclictest3984-21H222:10:211
32162991714,2cyclictest5957-21postgres22:05:410
32162991714,2cyclictest4099-21H222:10:210
32162991714,2cyclictest4032-21accounts22:10:210
32162991714,2cyclictest3991-21H222:10:210
32162991714,2cyclictest3983-21H222:10:210
32162991714,2cyclictest31581-21apache_volume20:05:130
32162991714,2cyclictest31581-21apache_volume20:05:130
32162991714,2cyclictest25119-21cpuspeed_turbos21:45:120
32162991714,2cyclictest19027-21nfsd422:30:180
32162991714,2cyclictest18597-21/usr/sbin/munin20:35:220
32162991714,2cyclictest16116-21tar21:30:020
32162991714,2cyclictest1516-21lxd00:20:360
32162991714,2cyclictest14311-21ntpq00:15:170
32162991714,2cyclictest0-21swapper/020:00:200
32162991713,3cyclictest4099-21H222:10:210
32162991713,3cyclictest3991-21H222:10:210
32162991712,4cyclictest0-21swapper/019:10:420
32162991712,4cyclictest0-21swapper/019:10:410
32162991710,3cyclictest0-21swapper/023:43:040
3216299170,2cyclictest3985-21H222:10:210
3216299170,2cyclictest31595-21expr21:00:150
3216299170,2cyclictest27983-21https20:55:000
3216299170,1cyclictest3979-21H222:10:210
3216299170,16cyclictest3991-21H222:10:210
3216299170,16cyclictest32628-21sed22:55:190
3216299170,16cyclictest3128-21ntp_kernel_pll_21:05:180
3216299170,16cyclictest23298-21nvmesmart_nvme021:40:200
3216299170,16cyclictest21922-21ntp_kernel_pll_22:35:190
3216299170,16cyclictest2069-21systemd-udevd21:10:520
3216299170,16cyclictest1856-21systemd-udevd20:12:520
3216299170,16cyclictest13450-21netstat19:30:200
3216299170,16cyclictest1079-21cups-browsed22:40:210
3216299170,16cyclictest0-21swapper/023:35:040
3216299170,16cyclictest0-21swapper/021:28:480
3216299170,16cyclictest0-21swapper/019:26:450
3216299170,15cyclictest3989-21H222:10:210
32164991614,1cyclictest0-21swapper/223:36:352
32164991614,1cyclictest0-21swapper/222:35:132
32164991614,1cyclictest0-21swapper/220:35:162
32164991614,1cyclictest0-21swapper/220:05:162
32164991614,1cyclictest0-21swapper/220:05:152
32164991614,1cyclictest0-21swapper/219:55:172
32164991613,2cyclictest399-20systemd-journal21:35:012
3216499160,2cyclictest21387-21http_loadtime19:45:162
3216499160,1cyclictest0-21swapper/222:00:112
3216499160,15cyclictest32244-21missed_timers21:00:172
3216499160,15cyclictest27999-21cat21:50:142
3216499160,15cyclictest27999-21cat21:50:132
3216499160,15cyclictest0-21swapper/200:35:112
32163991614,1cyclictest13590-21nfsd419:30:201
32163991614,1cyclictest0-21swapper/121:50:141
32163991614,1cyclictest0-21swapper/121:50:131
3216399161,1cyclictest21-21ksoftirqd/119:47:091
3216399160,1cyclictest13628-21cpuspeed_turbos23:20:151
3216399160,16cyclictest0-21swapper/121:10:411
3216399160,15cyclictest24125-21fschecks_time22:40:151
3216399160,15cyclictest238282sleep100:35:071
3216399160,15cyclictest2062-21missed_timers22:00:171
3216399160,15cyclictest15686-21dpkg00:20:121
3216399160,15cyclictest13330-21latency22:20:171
3216399160,15cyclictest1035-21thermald23:40:211
3216399160,15cyclictest0-21swapper/123:55:111
3216399160,15cyclictest0-21swapper/121:35:191
3216399160,15cyclictest0-21swapper/120:56:301
3216399160,15cyclictest0-21swapper/120:15:251
3216399160,15cyclictest0-21swapper/120:00:171
32162991614,1cyclictest8697-21timerwakeupswit22:10:220
32162991614,1cyclictest30185-21timerandwakeup20:55:250
32162991614,1cyclictest0-21swapper/020:15:190
32162991614,1cyclictest0-21swapper/019:40:190
32162991613,2cyclictest1485-21snapd19:50:090
3216299160,2cyclictest27905-21expr21:50:140
3216299160,2cyclictest27905-21expr21:50:140
3216299160,1cyclictest0-21swapper/022:15:130
3216299160,1cyclictest0-21swapper/021:55:110
3216299160,15cyclictest835-21apache_processe23:55:120
3216299160,15cyclictest3450-21gsd-color19:55:120
3216299160,15cyclictest0-21swapper/023:20:150
3216299160,15cyclictest0-21swapper/022:20:170
3216299160,15cyclictest0-21swapper/021:35:180
32162991514,1cyclictest0-21swapper/022:00:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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