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2026-03-21 - 17:41
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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 100 highest latencies:
System rackdslot0.osadl.org (updated Sat Mar 21, 2026 12:45:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
11955992411,7cyclictest16292-21proxymap08:11:360
1195599232,1cyclictest0-21swapper/008:16:460
1195599230,2cyclictest31322-21chrt10:32:340
1195799220,21cyclictest843-21systemd-network09:55:592
1195599221,16cyclictest1274-21runrttasks10:10:120
1195599220,2cyclictest5458-21ps11:40:180
1195599220,2cyclictest29795-21tune2fs07:40:140
1195599220,2cyclictest12631-21chrt09:01:440
1195599220,21cyclictest22601-21interrupts09:20:160
1195599220,21cyclictest15420-21/usr/sbin/munin12:00:130
1195599220,16cyclictest3703-21irqstats10:40:160
1195599220,16cyclictest29659-21latency_hist09:35:010
1195699210,20cyclictest843-21systemd-network12:14:071
11955992114,6cyclictest18238-21cat07:20:130
11955992114,6cyclictest18238-21cat07:20:130
1195599210,2cyclictest31413-21sendmail_mailqu09:35:200
1195599210,2cyclictest31292-21chrt12:27:500
1195599210,1cyclictest25373-21expr11:20:130
1195599210,1cyclictest0-21swapper/012:15:100
1195599210,1cyclictest0-21swapper/011:25:220
1195599210,1cyclictest0-21swapper/008:50:160
1195599210,1cyclictest0-21swapper/008:10:010
1195599210,16cyclictest5942-21cat10:45:130
1195599210,16cyclictest22331-21nfsd410:15:170
1195599210,16cyclictest15482-21fschecks_count10:05:150
1195599210,15cyclictest0-21swapper/012:05:040
1195599210,15cyclictest0-21swapper/010:00:220
1195599210,15cyclictest0-21swapper/009:15:170
1195599210,15cyclictest0-21swapper/008:45:010
1195599210,15cyclictest0-21swapper/007:25:210
1195699205,14cyclictest0-21swapper/109:05:231
1195699200,19cyclictest843-21systemd-network10:50:061
1195699200,17cyclictest0-21swapper/109:41:131
11955992014,5cyclictest4320-21grep07:50:200
11955992014,5cyclictest26099-21perf10:25:010
11955992014,5cyclictest16749-21snapd07:48:030
11955992014,5cyclictest0-21swapper/011:50:170
11955992014,5cyclictest0-21swapper/011:10:010
11955992014,5cyclictest0-21swapper/009:05:130
11955992014,5cyclictest0-21swapper/008:00:130
11955992013,6cyclictest15202-21smartctl11:00:180
11955992013,6cyclictest0-21swapper/008:30:200
11955992012,7cyclictest22953-21/usr/sbin/munin11:15:160
11955992011,8cyclictest863-21avahi-daemon10:50:200
1195599200,1cyclictest0-21swapper/011:45:160
1195599200,1cyclictest0-21swapper/011:38:590
1195599200,1cyclictest0-21swapper/011:30:140
1195599200,1cyclictest0-21swapper/008:55:210
1195599200,19cyclictest0-21swapper/010:55:220
1195599200,19cyclictest0-21swapper/009:45:180
1195599200,19cyclictest0-21swapper/009:25:140
1195599200,19cyclictest0-21swapper/007:35:140
1195599200,15cyclictest20985-21/usr/sbin/munin08:20:160
1195599200,15cyclictest13986-21ntp_states11:55:180
1195599200,15cyclictest0-21swapper/009:14:400
1195599200,14cyclictest0-21swapper/007:55:020
1195799192,1cyclictest0-21swapper/208:59:002
1195799190,18cyclictest843-21systemd-network11:50:252
1195799190,18cyclictest843-21systemd-network10:01:392
1195799190,18cyclictest0-21swapper/210:33:042
1195699197,11cyclictest0-21swapper/110:45:341
11956991917,1cyclictest0-21swapper/108:59:001
11956991916,2cyclictest22347-21tr11:15:121
11955991914,5cyclictest0-21swapper/011:10:230
11955991914,4cyclictest0-21swapper/012:30:220
11955991914,4cyclictest0-21swapper/007:30:160
1195599190,1cyclictest0-21swapper/010:35:120
1195599190,1cyclictest0-21swapper/007:15:080
1195599190,1cyclictest0-21swapper/007:10:180
1195599190,18cyclictest0-21swapper/012:35:010
1195599190,18cyclictest0-21swapper/012:20:160
1195599190,18cyclictest0-21swapper/009:50:130
1195599190,18cyclictest0-21swapper/009:42:070
1195599190,0cyclictest0-21swapper/009:55:140
1195599190,0cyclictest0-21swapper/008:47:190
11957991815,2cyclictest21552-21idleruntime07:25:162
1195799181,15cyclictest0-21swapper/208:50:182
1195799180,2cyclictest4099-21H222:10:212
1195799180,17cyclictest3981-21H222:10:212
1195799180,16cyclictest3983-21H222:10:212
1195799180,16cyclictest14635-21nfsd409:05:182
1195699182,2cyclictest5577-21if_lxdbr008:50:171
1195699182,15cyclictest0-21swapper/109:39:121
11956991816,1cyclictest286992chrt10:28:501
11956991816,1cyclictest21-21ksoftirqd/111:55:001
11956991816,1cyclictest10135-21/usr/sbin/munin08:00:211
11956991815,2cyclictest23811-21chrt09:22:341
11956991814,3cyclictest16748-21snapd08:35:041
1195699181,2cyclictest0-21swapper/112:25:181
1195699180,17cyclictest870-21systemd-logind12:31:521
1195699180,17cyclictest870-21systemd-logind10:36:521
1195699180,17cyclictest843-21systemd-network12:17:131
1195699180,17cyclictest3991-21H222:10:211
1195699180,17cyclictest20835-21nvmesmart_nvme011:10:191
1195699180,16cyclictest3987-21H222:10:211
1195699180,16cyclictest15945-21lxd07:52:441
11955991813,4cyclictest0-21swapper/012:10:130
11955991812,5cyclictest28604-21seq10:27:370
11955991812,5cyclictest0-21swapper/008:38:590
1195599180,0cyclictest0-21swapper/008:29:040
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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