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2026-03-19 - 17:33
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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 Thu Mar 19, 2026 12:46:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
9883992113,7cyclictest0-21swapper/208:40:192
988199211,17cyclictest0-21swapper/008:06:360
9881992020,0cyclictest0-21swapper/007:38:250
988199201,18cyclictest0-21swapper/012:10:010
988399190,4cyclictest870-21systemd-logind08:48:522
988399190,18cyclictest426-21systemd-udevd11:04:512
988399190,17cyclictest870-21systemd-logind09:58:522
988299193,15cyclictest0-21swapper/112:14:081
9882991917,1cyclictest0-21swapper/109:56:501
9882991916,2cyclictest26914-21fschecks_time08:35:151
9882991916,1cyclictest0-21swapper/109:23:501
9882991914,3cyclictest0-21swapper/108:32:561
988299190,18cyclictest3162-21cat07:55:011
988199190,18cyclictest0-21swapper/011:04:000
988199190,18cyclictest0-21swapper/010:33:480
988199190,18cyclictest0-21swapper/010:33:480
988399182,15cyclictest5575-21expr08:55:152
988399182,15cyclictest28-21ksoftirqd/207:29:372
9883991816,1cyclictest133892chrt11:56:432
9883991814,2cyclictest9336-21tr10:00:142
9883991813,4cyclictest426-21systemd-udevd12:14:512
988399180,3cyclictest399-20systemd-journal10:59:552
988399180,2cyclictest4035-21H222:10:212
988399180,17cyclictest0-21swapper/210:13:172
988399180,16cyclictest3989-21H222:10:212
988299182,15cyclictest0-21swapper/112:34:191
988299182,15cyclictest0-21swapper/109:40:011
988299182,15cyclictest0-21swapper/107:35:141
9882991816,1cyclictest0-21swapper/111:40:021
9882991816,1cyclictest0-21swapper/110:59:361
9882991815,2cyclictest31460-21nfsd409:40:181
9882991813,3cyclictest0-21swapper/111:24:591
988299181,2cyclictest19696-21gpg-connect-age12:10:001
988299181,1cyclictest0-21swapper/107:17:501
988299180,17cyclictest1525-21lxd08:16:421
988299180,17cyclictest0-21swapper/110:50:181
988199182,15cyclictest9-21ksoftirqd/008:55:150
988199182,15cyclictest0-21swapper/012:30:150
9881991816,1cyclictest31418-21needreboot09:40:180
9881991815,2cyclictest3989-21H222:10:210
9881991815,2cyclictest19782-21switchtime10:15:220
9881991815,2cyclictest15968-21cron09:15:000
9881991814,3cyclictest3987-21H222:10:210
9881991814,3cyclictest0-21swapper/007:49:460
988199180,2cyclictest1441-21sendmail-mta08:50:140
988399172,1cyclictest294232sleep209:37:092
9883991715,1cyclictest104052chrt11:53:392
9883991715,1cyclictest0-21swapper/211:40:182
9883991714,2cyclictest5059-21cut10:45:202
9883991714,2cyclictest18152-21cat08:20:122
9883991714,2cyclictest15777-21taskset09:12:252
988399171,15cyclictest0-21swapper/208:15:132
988399170,2cyclictest9605-21pzem_voltage09:00:222
988399170,2cyclictest29955-21grep07:45:142
988399170,2cyclictest17650-21cut09:15:182
988399170,2cyclictest16754-21snapd08:10:182
988399170,2cyclictest14301-21ntp_kernel_pll_07:15:202
988399170,2cyclictest11447-21chrt08:08:432
988399170,1cyclictest6848-21grep10:50:152
988399170,16cyclictest3991-21H222:10:212
988399170,16cyclictest30231-21/usr/sbin/munin09:40:142
988399170,16cyclictest29724-21ntpq12:25:162
988399170,16cyclictest25023-21proc_pri10:25:182
988399170,16cyclictest24645-21grep08:30:172
988399170,16cyclictest24148-21cut07:35:012
988399170,16cyclictest23438-21pzem_voltage09:25:202
988399170,16cyclictest20764-21mailstats09:20:212
988399170,16cyclictest19819-21threads10:15:222
988399170,16cyclictest19470-21chrt11:13:202
988399170,16cyclictest15977-21mailstats11:05:192
988399170,16cyclictest0-21swapper/210:30:112
988399170,16cyclictest0-21swapper/210:30:112
988399170,16cyclictest0-21swapper/210:05:472
988399170,16cyclictest0-21swapper/208:25:592
9882991715,1cyclictest0-21swapper/110:15:231
9882991714,2cyclictest22482-21df09:25:141
9882991714,2cyclictest16745-21snapd12:37:481
9882991714,2cyclictest1300-21lxd09:50:421
9882991714,2cyclictest12127-21nfsd409:05:181
988299170,3cyclictest0-21swapper/110:31:171
988299170,3cyclictest0-21swapper/110:31:171
988299170,2cyclictest4099-21H222:10:211
988299170,2cyclictest30889-21latency_hist12:30:011
988299170,16cyclictest6766-21grep11:45:171
988299170,16cyclictest3991-21H222:10:211
988299170,16cyclictest3837-21/usr/sbin/munin11:40:201
988299170,16cyclictest3753-21awk08:50:171
988299170,16cyclictest31819-21acpi08:45:121
988299170,16cyclictest26084-21ps09:30:181
988299170,16cyclictest22811-21awk07:30:161
988299170,16cyclictest21380-21awk11:15:191
988299170,16cyclictest16898-21netstat07:20:181
988299170,16cyclictest1650-21switchtime10:40:191
988299170,16cyclictest16436-21basename12:05:001
988299170,16cyclictest15945-21lxd11:52:421
988299170,16cyclictest12875-21nfsd411:00:161
9881991714,2cyclictest5380-21mktemp11:45:010
9881991714,2cyclictest5313-21awk09:50:200
9881991714,2cyclictest3894-21cat10:45:130
9881991714,2cyclictest2628-21missed_timers12:35:150
9881991714,2cyclictest21279-21ls10:20:140
9881991714,2cyclictest2069-21systemd-udevd10:04:530
9881991714,2cyclictest17974-21mailstats09:15:200
9881991714,2cyclictest15022-21fschecks_count11:05:130
9881991714,2cyclictest13680-21awk12:00:000
9881991714,2cyclictest10801-21apache_volume09:05:120
9881991713,3cyclictest426-21systemd-udevd11:10:510
988199171,1cyclictest8905-21cat08:05:010
988199171,15cyclictest4939-21needreboot07:55:170
988199171,15cyclictest4939-21needreboot07:55:160
988199170,2cyclictest399-20systemd-journal09:20:010
988199170,2cyclictest29772-21fschecks_time08:40:150
988199170,2cyclictest24009-21nfsd411:20:180
988199170,2cyclictest21739-21ntpq08:25:180
988199170,16cyclictest4099-21H222:10:210
988199170,16cyclictest3981-21H222:10:210
988199170,16cyclictest30775-21ntpq10:35:180
988199170,16cyclictest3030-21gmain12:06:040
988199170,16cyclictest24994-21/usr/sbin/munin10:25:180
988199170,16cyclictest24101-21fschecks_count08:30:140
988199170,16cyclictest2329-21turbostat.cron10:45:000
988199170,16cyclictest22821-21proxymap12:15:010
988199170,16cyclictest22821-21proxymap12:15:010
988199170,16cyclictest18233-21fschecks_count08:20:130
988199170,16cyclictest16171-21expr07:20:130
988199170,16cyclictest15506-21grep10:10:110
988199170,16cyclictest1313-21fschecks_time09:45:150
988199170,16cyclictest1035-21thermald07:40:200
988199170,16cyclictest0-21swapper/009:56:560
9883991615,1cyclictest0-21swapper/212:00:162
9883991614,1cyclictest360-21expr07:50:142
9883991614,1cyclictest29930-21expr10:35:132
9883991614,1cyclictest0-21swapper/212:30:112
9883991614,1cyclictest0-21swapper/212:20:092
9883991614,1cyclictest0-21swapper/211:35:162
9883991614,1cyclictest0-21swapper/209:45:142
9883991614,1cyclictest0-21swapper/209:30:142
9883991614,1cyclictest0-21swapper/207:55:012
9883991614,1cyclictest0-21swapper/207:55:012
9883991614,1cyclictest0-21swapper/207:35:162
9883991613,2cyclictest5015-21nfsd409:50:182
9883991613,2cyclictest16891-21cpuspeed_turbos12:05:112
988399160,1cyclictest22892-21expr11:20:122
988399160,1cyclictest1-21systemd08:52:522
988399160,15cyclictest6282-21if_eno111:45:142
988399160,15cyclictest460-21cat10:40:122
988399160,15cyclictest292742sleep207:42:232
988399160,15cyclictest2198-21smartctl12:35:142
988399160,15cyclictest21517-21fschecks_time10:20:142
988399160,15cyclictest20340-21expr11:15:132
988399160,15cyclictest12182-21ntp_offset09:05:192
988399160,15cyclictest0-21swapper/212:18:522
988399160,15cyclictest0-21swapper/212:18:512
988399160,15cyclictest0-21swapper/211:30:142
9882991614,1cyclictest6952-21cat08:00:131
9882991614,1cyclictest0-21swapper/111:05:121
9882991614,1cyclictest0-21swapper/110:35:131
9882991614,1cyclictest0-21swapper/110:20:211
9882991614,1cyclictest0-21swapper/109:00:131
9882991614,1cyclictest0-21swapper/108:25:151
9882991614,1cyclictest0-21swapper/108:10:191
9882991614,1cyclictest0-21swapper/107:45:181
9882991614,1cyclictest0-21swapper/107:25:161
9882991613,2cyclictest653-21tr09:45:141
9882991613,2cyclictest25712-21sort12:20:121
988299160,2cyclictest28410-21tr11:30:111
988299160,2cyclictest14723-21find10:08:591
988299160,1cyclictest0-21swapper/111:10:151
988299160,15cyclictest5508-21threads07:55:201
988299160,15cyclictest5508-21threads07:55:201
988299160,15cyclictest24428-21if_err_lxdbr010:25:151
988299160,15cyclictest24064-21nfsd412:15:161
988299160,15cyclictest24064-21nfsd412:15:161
988299160,15cyclictest11733-21expr11:55:131
988299160,15cyclictest11375-21python310:02:481
988299160,15cyclictest0-21swapper/111:25:201
988299160,15cyclictest0-21swapper/110:46:341
988299160,15cyclictest0-21swapper/110:10:191
988299160,15cyclictest0-21swapper/109:10:051
988299160,15cyclictest0-21swapper/108:55:151
988299160,15cyclictest0-21swapper/108:40:131
988299160,15cyclictest0-21swapper/108:20:181
988299160,15cyclictest0-21swapper/108:05:131
988299160,15cyclictest0-21swapper/107:40:171
9881991614,1cyclictest28316-21acpi12:25:100
9881991614,1cyclictest0-21swapper/012:20:110
9881991614,1cyclictest0-21swapper/011:50:120
9881991614,1cyclictest0-21swapper/011:40:090
9881991614,1cyclictest0-21swapper/011:35:130
9881991614,1cyclictest0-21swapper/011:25:140
9881991614,1cyclictest0-21swapper/010:50:230
9881991614,1cyclictest0-21swapper/010:05:130
9881991614,1cyclictest0-21swapper/008:15:160
9881991613,2cyclictest9418-21expr10:55:130
9881991613,2cyclictest32320-21ls08:45:130
9881991613,2cyclictest27358-21/usr/sbin/munin08:35:170
9881991611,4cyclictest8744-21cut09:00:140
988199160,2cyclictest14657-21cat12:00:130
988199160,15cyclictest455-21plymouthd07:53:290
988199160,15cyclictest29695-21grep11:30:180
988199160,15cyclictest27859-21expr09:35:120
988199160,15cyclictest25114-21expr09:30:120
988199160,15cyclictest22476-21df09:25:140
988199160,15cyclictest20160-21expr11:15:130
988199160,15cyclictest12736-21/usr/sbin/munin08:10:140
988399150,14cyclictest0-21swapper/208:35:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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