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2026-04-23 - 21:44
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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 Thu Apr 23, 2026 12:45:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
30504992718,0cyclictest0-21swapper/112:10:131
3050499240,0cyclictest0-21swapper/107:45:131
3050999230,5cyclictest0-21swapper/211:02:262
3050099232,4cyclictest0-21swapper/008:20:000
3050099230,5cyclictest0-21swapper/012:05:340
30504992117,3cyclictest0-21swapper/112:33:301
30504992114,3cyclictest0-21swapper/110:10:131
3050499210,19cyclictest843-21systemd-network09:12:521
3050099213,2cyclictest3981-21H222:10:210
3050999204,15cyclictest0-21swapper/209:46:492
3050999200,1cyclictest0-21swapper/210:35:012
3050999200,19cyclictest843-21systemd-network10:47:392
3050499204,15cyclictest0-21swapper/110:20:171
30504992017,2cyclictest7032-21sed11:09:011
30500992016,3cyclictest0-21swapper/011:29:460
3050999192,2cyclictest17258-21chrt12:23:592
3050999192,1cyclictest0-21swapper/209:10:102
30509991917,1cyclictest0-21swapper/208:35:052
3050999190,16cyclictest3979-21H222:10:212
3050499197,11cyclictest0-21swapper/107:16:401
3050499192,1cyclictest0-21swapper/108:10:061
3050499192,16cyclictest8210-21fschecks_count11:10:141
3050499192,15cyclictest0-21swapper/111:27:311
3050499192,15cyclictest0-21swapper/110:04:351
30504991917,1cyclictest30145-21date11:50:011
30504991916,2cyclictest13222-21latency12:15:171
30504991915,3cyclictest0-21swapper/108:20:011
30504991914,2cyclictest30138-21fschecks_count09:00:141
3050499190,18cyclictest0-21swapper/108:44:171
3050499190,18cyclictest0-21swapper/107:24:571
3050499190,17cyclictest0-21swapper/111:31:161
3050099194,1cyclictest0-21swapper/008:05:160
30500991915,3cyclictest0-21swapper/011:19:540
30500991915,3cyclictest0-21swapper/009:49:440
30500991915,2cyclictest20210-21nvmesmart_nvme010:35:180
3050999183,9cyclictest12154-21munin-run08:30:012
3050999182,15cyclictest28-21ksoftirqd/210:12:522
30509991816,1cyclictest1397-21latency_hist11:00:012
30509991816,1cyclictest0-21swapper/210:25:162
30509991815,2cyclictest32316-21cut07:10:182
30509991815,2cyclictest29605-21pzem_energy10:50:182
3050999180,2cyclictest3976-21H222:10:212
3050999180,15cyclictest3987-21H222:10:212
3050999180,15cyclictest0-21swapper/211:50:012
3050499182,15cyclictest4495-21cat12:00:121
3050499182,15cyclictest3740-21mailstats10:05:201
3050499182,15cyclictest2228-21find09:09:001
3050499182,15cyclictest0-21swapper/110:35:131
3050499182,15cyclictest0-21swapper/107:34:091
3050499182,15cyclictest0-21swapper/107:34:091
30504991816,1cyclictest2772-21cat11:00:171
30504991816,1cyclictest26321-21expr11:40:201
30504991816,1cyclictest17904-21uniq09:35:141
30504991815,2cyclictest13215-21cat11:20:011
30504991815,1cyclictest0-21swapper/109:55:151
30504991814,3cyclictest14642-21cut10:25:171
30504991814,3cyclictest0-21swapper/108:45:191
3050499181,3cyclictest0-21swapper/108:39:121
30504991813,3cyclictest3087-21postgres12:00:001
3050499181,16cyclictest15093-21mailstats11:20:201
3050499180,3cyclictest25497-21sessionclean12:39:001
3050499180,3cyclictest0-21swapper/107:40:151
3050499180,2cyclictest565-21proxymap10:58:261
3050499180,2cyclictest565-21proxymap10:58:261
3050499180,16cyclictest3981-21H222:10:211
3050499180,16cyclictest0-21swapper/107:37:541
3050499180,15cyclictest0-21swapper/112:25:141
3050499180,15cyclictest0-21swapper/109:20:191
30500991816,1cyclictest0-21swapper/007:47:220
30500991815,2cyclictest4099-21H222:10:210
30500991815,2cyclictest1236-21chrt10:02:050
30500991814,3cyclictest21657-21grep12:30:170
30500991814,2cyclictest3989-21H222:10:210
3050099180,15cyclictest0-21swapper/007:30:080
3050099180,15cyclictest0-21swapper/007:30:070
30509991715,1cyclictest21899-21nvmesmart_nvme012:30:182
30509991715,1cyclictest0-21swapper/210:55:212
30509991715,1cyclictest0-21swapper/209:20:152
30509991715,1cyclictest0-21swapper/208:10:222
30509991715,1cyclictest0-21swapper/207:35:212
30509991715,1cyclictest0-21swapper/207:31:142
30509991715,1cyclictest0-21swapper/207:31:132
30509991714,2cyclictest8415-21expr10:15:132
30509991714,2cyclictest23198-21pzem_energy11:35:192
30509991714,2cyclictest22984-21sed07:50:222
30509991714,2cyclictest21494-21munin-run10:40:002
30509991714,2cyclictest19965-21sed11:30:152
30509991714,2cyclictest18158-21kernelversion09:35:172
30509991714,2cyclictest12689-21cat12:15:152
30509991713,3cyclictest22185-21ls08:45:182
3050999171,15cyclictest5526-21systemctl12:00:202
3050999171,15cyclictest0-21swapper/209:40:202
3050999170,2cyclictest3985-21H222:10:212
3050999170,2cyclictest25684-21nfsd407:55:192
3050999170,2cyclictest23199-21/usr/sbin/munin12:35:162
3050999170,2cyclictest17744-21anvil12:28:252
3050999170,2cyclictest12139-21ntpq11:15:182
3050999170,1cyclictest5392-21tune2fs11:05:152
3050999170,1cyclictest3989-21H222:10:212
3050999170,16cyclictest713-21master11:55:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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