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2026-08-12 - 06:02
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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 Wed Aug 12, 2026 00:45:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3033499304,8cyclictest0-21swapper/000:09:160
3033699230,20cyclictest11190-21nfsd421:25:202
3033699224,17cyclictest0-21swapper/219:42:562
3033699223,18cyclictest0-21swapper/220:40:182
30335992213,5cyclictest0-21swapper/121:18:501
3033599220,21cyclictest843-21systemd-network20:20:421
3033599220,17cyclictest30939-21cpuspeed_turbos23:00:111
30334992217,5cyclictest0-21swapper/022:10:010
30335992119,1cyclictest21-21ksoftirqd/122:35:281
30335992111,9cyclictest0-21swapper/121:55:091
3033599210,4cyclictest0-21swapper/123:18:561
3033499214,16cyclictest2462-21cpuspeed_turbos20:15:150
3033699202,17cyclictest0-21swapper/219:19:122
3033699200,19cyclictest0-21swapper/221:45:002
3033599204,1cyclictest0-21swapper/100:32:321
3033499204,15cyclictest0-21swapper/023:53:000
3033499202,3cyclictest0-21swapper/023:25:000
3033699193,15cyclictest28-21ksoftirqd/221:15:152
3033699192,1cyclictest0-21swapper/223:40:272
3033699192,16cyclictest4035-21H222:10:212
30336991917,1cyclictest0-21swapper/223:11:052
30336991917,1cyclictest0-21swapper/221:55:092
30336991913,5cyclictest32236-21ntp_kernel_pll_21:05:212
3033699191,16cyclictest7079-21latency00:10:162
3033699190,5cyclictest0-21swapper/219:51:052
3033699190,18cyclictest2620-21strings21:10:182
3033599193,15cyclictest3331-21fschecks_count22:10:141
30335991917,1cyclictest21-21ksoftirqd/120:32:291
30335991917,1cyclictest0-21swapper/122:45:121
30335991917,1cyclictest0-21swapper/119:40:211
30335991914,3cyclictest8028-21sshd22:16:151
3033599190,17cyclictest3989-21H222:10:211
3033599190,16cyclictest3989-21H222:10:211
3033499194,14cyclictest0-21swapper/022:35:140
3033499192,2cyclictest3979-21H222:10:210
30334991917,1cyclictest0-21swapper/021:51:410
30334991916,2cyclictest4035-21H222:10:210
30334991916,2cyclictest16416-21latency21:35:170
3033499190,16cyclictest4035-21H222:10:210
3033499190,16cyclictest3991-21H222:10:210
3033499190,16cyclictest3983-21H222:10:210
3033499190,16cyclictest3979-21H222:10:210
3033699182,15cyclictest56172chrt00:09:222
3033699182,15cyclictest28-21ksoftirqd/219:46:542
3033699182,15cyclictest28-21ksoftirqd/219:46:532
30336991815,2cyclictest4099-21H222:10:212
30336991815,2cyclictest0-21swapper/221:30:432
30336991814,3cyclictest4035-21H222:10:212
30336991814,3cyclictest1377-21lxd00:16:382
30336991814,3cyclictest0-21swapper/220:55:532
3033699180,2cyclictest3987-21H222:10:212
3033699180,17cyclictest0-21swapper/222:05:142
3033699180,16cyclictest3976-21H222:10:212
3033599182,15cyclictest17085-21switchtime21:35:221
30335991817,0cyclictest0-21swapper/122:28:421
30335991816,1cyclictest4420-21acpi23:10:121
30335991816,1cyclictest21-21ksoftirqd/121:48:541
30335991816,1cyclictest0-21swapper/123:54:121
30335991816,1cyclictest0-21swapper/123:47:081
30335991815,2cyclictest7560-21processes00:10:191
3033599181,2cyclictest3981-21H222:10:211
3033599181,2cyclictest3981-21H222:10:211
3033599181,1cyclictest0-21swapper/121:02:111
3033599180,2cyclictest3981-21H222:10:211
3033599180,2cyclictest3979-21H222:10:211
3033599180,17cyclictest843-21systemd-network22:01:401
3033599180,17cyclictest3989-21H222:10:211
3033599180,17cyclictest3989-21H222:10:211
3033599180,17cyclictest1522-21lxd20:52:521
3033599180,15cyclictest3991-21H222:10:211
3033599180,15cyclictest0-21swapper/122:20:201
3033499182,15cyclictest3991-21H222:10:210
3033499182,15cyclictest0-21swapper/019:50:310
30334991815,2cyclictest11717-21cpuspeed_turbos22:25:120
30334991814,3cyclictest4099-21H222:10:210
30334991814,3cyclictest3979-21H222:10:210
30334991814,3cyclictest23910-21wc20:50:220
3033499180,2cyclictest3991-21H222:10:210
3033499180,2cyclictest3987-21H222:10:210
3033499180,2cyclictest3976-21H222:10:210
3033499180,17cyclictest1526-21lxd00:30:370
3033499180,15cyclictest3979-21H222:10:210
3033499180,15cyclictest3976-21H222:10:210
30336991715,1cyclictest9494-21chrt21:24:402
30336991715,1cyclictest28-21ksoftirqd/223:00:112
30336991715,1cyclictest28-21ksoftirqd/220:45:172
30336991714,2cyclictest4297-21nvmesmart_nvme022:10:192
30336991714,2cyclictest4035-21H222:10:212
30336991714,2cyclictest3987-21H222:10:212
30336991714,2cyclictest29739-21smtpd21:01:312
30336991714,2cyclictest25414-21cat21:50:202
30336991714,2cyclictest14558-21tr00:25:132
30336991714,2cyclictest12927-21grep00:20:192
3033699171,2cyclictest12545-21cpuspeed_turbos19:35:142
3033699171,15cyclictest28-21ksoftirqd/220:30:382
3033699171,15cyclictest0-21swapper/223:15:182
3033699170,2cyclictest9468-21fschecks_time22:20:142
3033699170,2cyclictest4099-21H222:10:212
3033699170,2cyclictest3976-21H222:10:212
3033699170,2cyclictest331-21expr00:00:152
3033699170,2cyclictest31198-21expr19:10:142
3033699170,2cyclictest31173-21timerwakeupswit22:00:222
3033699170,2cyclictest19987-21grep00:35:142
3033699170,2cyclictest16567-21idleruntime-cro22:35:012
3033699170,1cyclictest0-21swapper/222:45:132
3033699170,1cyclictest0-21swapper/219:55:092
3033699170,16cyclictest4099-21H222:10:212
3033699170,16cyclictest4099-21H222:10:212
3033699170,16cyclictest3983-21H222:10:212
3033699170,16cyclictest3981-21H222:10:212
3033699170,16cyclictest3976-21H222:10:212
3033699170,16cyclictest32708-21kernelversion20:10:182
3033699170,16cyclictest26662-21nfsd422:50:192
3033699170,16cyclictest14259-21cat20:35:172
3033699170,16cyclictest10484-21df23:20:132
3033699170,16cyclictest0-21swapper/223:00:012
3033699170,15cyclictest3987-21H222:10:212
30335991714,2cyclictest4272-21expr19:20:141
30335991714,2cyclictest3991-21H222:10:211
30335991714,2cyclictest3989-21H222:10:211
30335991714,2cyclictest3983-21H222:10:211
30335991714,2cyclictest3981-21H222:10:211
30335991714,2cyclictest3981-21H222:10:211
30335991714,2cyclictest20135-21ls00:35:141
30335991713,3cyclictest3989-21H222:10:211
30335991713,3cyclictest25765-21awk20:00:011
30335991713,3cyclictest0-21swapper/121:41:091
3033599170,2cyclictest4035-21H222:10:211
3033599170,2cyclictest4035-21H222:10:211
3033599170,2cyclictest3991-21H222:10:211
3033599170,2cyclictest3311-21cat20:15:181
3033599170,2cyclictest2069-21systemd-udevd21:14:511
3033599170,2cyclictest18303-21sed20:40:181
3033599170,2cyclictest10747-21users00:15:221
3033599170,1cyclictest0-21swapper/119:11:571
3033599170,16cyclictest843-21systemd-network22:57:491
3033599170,16cyclictest8024-21grep19:25:181
3033599170,16cyclictest3981-21H222:10:211
3033599170,16cyclictest3976-21H222:10:211
3033599170,16cyclictest31221-21cstates21:05:161
3033599170,16cyclictest26732-21nvmesmart_nvme022:50:191
3033599170,16cyclictest2104-21date20:15:021
3033599170,16cyclictest20451-21df22:40:121
3033599170,16cyclictest14096-21timerandwakeup19:35:221
3033599170,16cyclictest12942-21ls23:25:141
3033599170,10cyclictest10438-21/usr/sbin/munin20:30:011
3033499172,1cyclictest0-21swapper/019:55:570
30334991715,1cyclictest9-21ksoftirqd/019:37:070
30334991715,1cyclictest0-21swapper/022:18:320
30334991714,2cyclictest8594-21cut00:15:010
30334991714,2cyclictest3991-21H222:10:210
30334991714,2cyclictest31575-21apt22:05:010
30334991714,2cyclictest31442-21df_inode21:05:170
30334991714,2cyclictest28365-21fschecks_time21:00:160
30334991714,2cyclictest24967-21apache_volume20:55:130
30334991714,2cyclictest15753-21/usr/sbin/munin22:30:210
30334991714,2cyclictest1423-21apache_volume21:10:130
30334991713,3cyclictest9460-21cron23:20:000
30334991713,3cyclictest863-21avahi-daemon00:15:210
3033499171,15cyclictest4035-21H222:10:210
3033499170,2cyclictest5437-21nfsd419:20:190
3033499170,2cyclictest31188-21ls19:10:130
3033499170,2cyclictest18313-21expr19:45:140
3033499170,2cyclictest18313-21expr19:45:130
3033499170,2cyclictest13904-21nfsd421:30:190
3033499170,2cyclictest10082-21cut21:25:150
3033499170,16cyclictest845-21proc_pri20:10:220
3033499170,16cyclictest3987-21H222:10:210
3033499170,16cyclictest24876-21cat23:45:190
3033499170,16cyclictest23152-21cat22:45:130
3033499170,16cyclictest21160-21ntp_states00:35:190
3033499170,16cyclictest14217-21cat20:35:160
3033499170,16cyclictest12831-21cat20:30:230
3033499170,15cyclictest3987-21H222:10:210
30336991614,1cyclictest154382chrt21:35:142
3033699160,1cyclictest30405-21nfsd423:55:202
3033699160,1cyclictest26678-21cpuspeed_turbos23:50:132
3033699160,15cyclictest8356-21expr20:25:152
3033699160,15cyclictest455-21plymouthd23:35:112
3033699160,15cyclictest3991-21H222:10:212
3033699160,15cyclictest0-21swapper/220:15:152
30335991614,1cyclictest24946-21acpi20:55:121
30335991614,1cyclictest0-21swapper/121:20:191
30335991613,2cyclictest27578-21ntp_states20:00:231
3033599160,1cyclictest0-21swapper/119:15:181
3033599160,15cyclictest3989-21H222:10:211
30334991614,1cyclictest5439-21cpuspeed_turbos20:20:140
30334991614,1cyclictest24722chrt19:15:190
30334991614,1cyclictest0-21swapper/020:05:230
30334991614,1cyclictest0-21swapper/000:00:140
3033499161,1cyclictest22803-21timerandwakeup23:40:230
3033499160,1cyclictest0-21swapper/023:35:110
3033499160,1cyclictest0-21swapper/000:25:180
3033499160,15cyclictest3976-21H222:10:210
3033499160,15cyclictest0-21swapper/023:25:120
3033499160,15cyclictest0-21swapper/023:00:120
3033499160,15cyclictest0-21swapper/022:55:170
3033499160,15cyclictest0-21swapper/021:15:150
3033499160,15cyclictest0-21swapper/020:25:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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