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2026-04-03 - 04:40
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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 Fri Apr 03, 2026 00:45:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
22293992525,0cyclictest0-21swapper/020:05:170
22294992414,10cyclictest0-21swapper/121:15:181
2229599237,15cyclictest0-21swapper/200:27:522
2229499230,23cyclictest0-21swapper/120:54:541
2229499230,23cyclictest0-21swapper/120:30:141
2229499220,18cyclictest0-21swapper/100:00:211
2229399220,0cyclictest0-21swapper/022:40:160
22295992117,3cyclictest0-21swapper/220:01:172
2229599210,20cyclictest843-21systemd-network22:51:362
2229499210,20cyclictest0-21swapper/119:38:591
2229499204,15cyclictest0-21swapper/122:22:191
2229499204,15cyclictest0-21swapper/120:25:151
2229499203,2cyclictest13862-21if_err_enp1s023:40:151
2229499203,16cyclictest32638-21timerwakeupswit19:25:211
2229499200,20cyclictest0-21swapper/123:00:161
2229499200,19cyclictest10306-21cpuspeed_turbos23:35:131
2229399202,1cyclictest0-21swapper/023:20:330
22293992017,2cyclictest22206-21cut23:00:000
22293992014,5cyclictest0-21swapper/022:05:160
22295991917,1cyclictest0-21swapper/221:27:102
2229599190,3cyclictest0-21swapper/223:59:422
2229599190,3cyclictest0-21swapper/222:36:462
2229599190,2cyclictest3983-21H222:10:212
2229599190,18cyclictest25969-21chrt21:10:162
2229499192,2cyclictest22955-21expr21:05:151
2229499192,16cyclictest9131-21chrt19:40:281
2229499192,16cyclictest0-21swapper/100:25:221
22294991917,1cyclictest0-21swapper/123:12:331
22294991917,1cyclictest0-21swapper/100:30:151
22294991916,2cyclictest23721-21latency_hist20:10:011
22294991916,2cyclictest1937-21basename21:25:151
22294991914,3cyclictest0-21swapper/123:06:481
2229499190,2cyclictest3981-21H222:10:211
2229499190,2cyclictest25226-21cat19:15:011
2229499190,18cyclictest15343-21dpkg19:55:021
2229499190,18cyclictest0-21swapper/122:15:131
2229499190,18cyclictest0-21swapper/121:20:181
2229499190,17cyclictest31850irq/133-nvme0q221:40:141
2229499190,16cyclictest3501-21grep00:20:001
2229399191,16cyclictest0-21swapper/023:05:170
2229599182,15cyclictest32682-21timerwakeupswit19:25:222
22295991814,3cyclictest20749-21grep22:00:002
22295991814,3cyclictest20749-21grep22:00:002
22295991814,3cyclictest17710-21proxymap19:55:212
22295991812,5cyclictest0-21swapper/222:30:182
2229599181,16cyclictest9812-21cron21:40:002
2229599180,3cyclictest10151-21lxd00:30:332
2229599180,17cyclictest0-21swapper/222:40:192
2229599180,16cyclictest3991-21H222:10:212
2229599180,15cyclictest3983-21H222:10:212
2229499182,15cyclictest236872sleep123:56:491
2229499182,15cyclictest17826-21chrt19:56:461
2229499182,15cyclictest0-21swapper/121:15:011
2229499182,15cyclictest0-21swapper/120:35:121
22294991816,1cyclictest0-21swapper/123:20:121
22294991816,1cyclictest0-21swapper/122:45:261
22294991815,2cyclictest13738-21basename21:45:141
22294991815,2cyclictest11244-21expr19:45:181
22294991815,1cyclictest3987-21H222:10:211
22294991815,1cyclictest0-21swapper/122:00:041
22294991814,3cyclictest13735-21/usr/sbin/munin00:35:191
22294991813,3cyclictest0-21swapper/122:55:021
2229499181,2cyclictest19856-21grep23:50:171
22294991812,3cyclictest0-21swapper/120:55:171
2229499181,1cyclictest0-21swapper/123:30:121
2229499181,16cyclictest31553-21cat00:10:181
2229499181,16cyclictest25168-21expr22:05:181
2229499180,17cyclictest32687-21chrt23:16:131
2229499180,17cyclictest27655-21cstates00:05:141
2229499180,17cyclictest10000-21awk20:40:181
2229399182,2cyclictest18029-21latency_hist21:55:000
2229399182,1cyclictest23852-21grep19:10:170
2229399182,1cyclictest0-21swapper/000:38:590
2229399182,15cyclictest25594-21nfsd400:00:170
22293991814,1cyclictest0-21swapper/020:00:010
22293991813,3cyclictest7551-21grep23:30:130
2229399180,17cyclictest32655-21master23:15:470
2229399180,17cyclictest20315-21fschecks_time21:00:140
2229399180,15cyclictest0-21swapper/022:35:010
22295991715,1cyclictest0-21swapper/223:25:142
22295991715,1cyclictest0-21swapper/219:20:122
22295991714,2cyclictest6373-21cat20:35:132
22295991714,2cyclictest4099-21H222:10:212
22295991714,2cyclictest3981-21H222:10:212
22295991714,2cyclictest3979-21H222:10:212
22295991714,2cyclictest3141-21wc20:30:122
22295991714,2cyclictest30827-21grep21:20:132
22295991714,2cyclictest2740-21chrt22:25:122
22295991714,2cyclictest24234-21expr22:05:132
22295991714,2cyclictest23278-21fschecks_time19:10:152
22295991714,2cyclictest15938-21grep23:45:142
22295991714,2cyclictest1007-21missed_timers20:25:172
2229599171,15cyclictest28-21ksoftirqd/223:39:512
2229599170,2cyclictest9404-21munin-run23:35:002
2229599170,2cyclictest9058-21expr20:40:142
2229599170,2cyclictest4035-21H222:10:212
2229599170,2cyclictest3979-21H222:10:212
2229599170,2cyclictest27093-21/usr/sbin/munin00:05:152
2229599170,2cyclictest23629-21cron20:09:002
2229599170,2cyclictest1579-21expr19:30:122
2229599170,16cyclictest814-21/usr/sbin/munin00:15:172
2229599170,16cyclictest7486-21expr19:40:142
2229599170,16cyclictest5420-21nvmesmart_nvme000:20:182
2229599170,16cyclictest4099-21H222:10:212
2229599170,16cyclictest3991-21H222:10:212
2229599170,16cyclictest3991-21H222:10:212
2229599170,16cyclictest3981-21H222:10:212
2229599170,16cyclictest30645-21tr00:10:132
2229599170,16cyclictest3058-21rs:main2
2229599170,16cyclictest24609-21postgres21:08:582
2229599170,16cyclictest24127-21/usr/sbin/munin20:10:132
2229599170,16cyclictest16173-21taskset20:51:102
2229599170,16cyclictest14745-21threads23:40:232
2229599170,16cyclictest11950-21cat20:45:132
2229599170,16cyclictest0-21swapper/223:05:142
2229599170,16cyclictest0-21swapper/222:55:162
2229599170,16cyclictest0-21swapper/221:15:232
22294991714,2cyclictest9599-21sed22:35:191
22294991714,2cyclictest28400-21pzem20:15:191
22294991714,2cyclictest26881-21find19:15:211
22294991714,2cyclictest19960-21expr21:00:131
22294991714,2cyclictest16212-21expr23:45:141
2229499171,15cyclictest3984-21H222:10:211
2229499171,15cyclictest11457-21grep20:45:131
2229499170,2cyclictest6798-21/usr/sbin/munin22:30:171
2229499170,2cyclictest4853-21fschecks_time23:25:141
2229499170,2cyclictest24127-21/usr/sbin/munin20:10:131
2229499170,2cyclictest19199-21cut20:00:131
2229499170,2cyclictest1482-21expr19:30:131
2229499170,16cyclictest7367-21grep21:35:131
2229499170,16cyclictest4639-21apt-get21:30:131
2229499170,16cyclictest4456-21ls00:20:131
2229499170,16cyclictest4277-21grep22:25:191
2229499170,16cyclictest30828-21nfsd420:20:171
2229499170,16cyclictest29976-21cat19:20:201
2229499170,16cyclictest27241-21expr22:10:131
2229499170,16cyclictest18414-21debian-sa121:55:011
2229499170,16cyclictest18414-21debian-sa121:55:001
22293991715,1cyclictest29708-21apt-get00:10:020
22293991714,2cyclictest31440-21fschecks_time21:20:150
22293991714,2cyclictest31007-21cpuspeed_turbos19:25:130
22293991714,2cyclictest29292-21nfsd419:20:170
22293991714,2cyclictest1854-21cut19:30:130
22293991714,2cyclictest17466-21switchtime23:45:210
22293991714,2cyclictest1228-21/usr/sbin/munin21:25:130
22293991714,2cyclictest0-21swapper/020:45:120
22293991714,1cyclictest0-21swapper/021:47:480
22293991711,3cyclictest17121-21grep20:55:120
2229399170,2cyclictest32310-21grep22:20:140
2229399170,2cyclictest30454-21uname22:15:160
2229399170,2cyclictest23513-21munin-run22:05:000
2229399170,2cyclictest22843-21expr21:05:160
2229399170,2cyclictest19235-21if_eno121:55:150
2229399170,2cyclictest19235-21if_eno121:55:150
2229399170,2cyclictest14466-21ls20:50:130
2229399170,1cyclictest3991-21H222:10:210
2229399170,16cyclictest7962-21fschecks_count21:35:130
2229399170,16cyclictest6599-21sessionclean19:39:010
2229399170,16cyclictest5464-21if_err_eno121:30:150
2229399170,16cyclictest4282-21cut22:25:190
2229399170,16cyclictest4035-21H222:10:210
2229399170,16cyclictest32246-21latency_hist20:25:010
2229399170,16cyclictest1522-21lxd23:56:340
2229399170,16cyclictest13994-21ntpq19:50:190
2229399170,16cyclictest13519-21expr23:40:130
2229399170,16cyclictest10203-21cpuspeed_turbos23:35:140
2229399170,16cyclictest0-21swapper/023:25:190
2229399170,16cyclictest0-21swapper/020:00:140
22295991614,1cyclictest0-21swapper/222:45:142
22295991614,1cyclictest0-21swapper/221:00:152
22295991613,2cyclictest17132-21cpuspeed_turbos20:55:132
2229599160,1cyclictest0-21swapper/223:20:132
2229599160,1cyclictest0-21swapper/200:00:112
2229599160,15cyclictest14236-21cut19:50:202
2229599160,15cyclictest12400-21cpuspeed_turbos00:35:132
2229599160,15cyclictest0-21swapper/223:10:132
2229599160,15cyclictest0-21swapper/221:50:152
2229599160,15cyclictest0-21swapper/221:45:132
2229599160,15cyclictest0-21swapper/221:30:182
22293991614,1cyclictest27405-21/usr/sbin/munin22:10:150
22293991614,1cyclictest1716-21switchtime20:25:220
22293991614,1cyclictest10678-21nfsd400:30:200
22293991614,1cyclictest0-21swapper/021:18:510
22293991614,1cyclictest0-21swapper/020:35:160
22293991614,1cyclictest0-21swapper/019:15:140
22293991614,1cyclictest0-21swapper/000:05:130
22293991613,2cyclictest8739-21mailstats19:40:200
2229399160,2cyclictest8485-21apache_accesses22:35:130
2229399160,1cyclictest0-21swapper/020:10:140
2229399160,15cyclictest7330-21df_inode00:25:150
2229399160,15cyclictest3818-21cat20:30:150
2229399160,15cyclictest15145-21latency22:45:180
2229399160,15cyclictest0-21swapper/023:50:120
2229399160,15cyclictest0-21swapper/023:10:140
2229399160,15cyclictest0-21swapper/021:40:180
2229399160,15cyclictest0-21swapper/020:15:130
2229399160,15cyclictest0-21swapper/000:20:150
2229399160,15cyclictest0-21swapper/000:15:130
2229399150,1cyclictest0-21swapper/022:50:080
2229399150,14cyclictest0-21swapper/021:10:180
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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