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2026-05-19 - 11:55
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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 Tue May 19, 2026 00:45:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
751299253,14cyclictest0-21swapper/019:31:570
7521992314,5cyclictest0-21swapper/223:29:592
751599220,5cyclictest0-21swapper/119:18:451
752199202,1cyclictest0-21swapper/221:54:312
7515992017,2cyclictest11796-21cron00:05:011
7512992017,2cyclictest2638-21mii-tool20:55:160
752199193,15cyclictest28-21ksoftirqd/220:50:172
752199192,1cyclictest0-21swapper/223:45:162
7521991916,2cyclictest22122-21date23:25:022
7521991914,1cyclictest0-21swapper/223:15:172
7521991913,5cyclictest0-21swapper/222:51:092
752199190,5cyclictest0-21swapper/221:18:262
752199190,3cyclictest0-21swapper/221:35:182
752199190,1cyclictest0-21swapper/220:20:362
752199190,18cyclictest1280-21grep19:55:162
752199190,18cyclictest0-21swapper/220:09:392
751599192,16cyclictest0-21swapper/123:42:581
751599192,16cyclictest0-21swapper/100:39:041
751599190,1cyclictest0-21swapper/120:15:161
751299199,5cyclictest0-21swapper/000:40:010
751299192,2cyclictest22048-21tune2fs21:30:140
751299192,2cyclictest12664-21fschecks_count22:10:140
7512991919,0cyclictest0-21swapper/019:15:040
752199182,15cyclictest11652-21missed_timers19:15:192
752199182,15cyclictest0-21swapper/222:05:002
752199182,15cyclictest0-21swapper/219:30:182
7521991816,1cyclictest27834-21ls22:35:212
7521991816,1cyclictest0-21swapper/222:05:132
7521991816,1cyclictest0-21swapper/221:10:142
7521991816,1cyclictest0-21swapper/220:10:192
7521991816,1cyclictest0-21swapper/219:37:352
7521991815,2cyclictest8855-21cat23:00:142
7521991815,2cyclictest6580-21latency_hist23:55:012
7521991815,2cyclictest29433-21expr22:40:122
7521991815,2cyclictest28440-21if_enp1s023:35:142
7521991815,2cyclictest22645-21expr21:30:172
7521991815,2cyclictest18683-21seq21:25:092
7521991814,3cyclictest0-21swapper/223:40:132
7521991814,3cyclictest0-21swapper/220:35:582
752199181,16cyclictest3341-21nvmesmart_nvme020:55:192
752199180,3cyclictest22610-21perf20:35:012
752199180,17cyclictest4389-21grep20:00:142
752199180,17cyclictest3076-21iscsid21:25:012
752199180,17cyclictest0-21swapper/200:25:152
751599182,1cyclictest0-21swapper/122:08:071
751599182,15cyclictest6732-21seq20:05:131
751599182,15cyclictest6027-21needreboot21:00:191
751599182,15cyclictest0-21swapper/123:45:071
751599182,15cyclictest0-21swapper/122:59:571
7515991813,4cyclictest0-21swapper/120:10:421
751599181,16cyclictest28219-21chrt22:37:421
751599181,16cyclictest0-21swapper/123:30:191
7512991816,1cyclictest31255-21chrt22:44:300
7512991815,2cyclictest24667-21nfsd422:30:180
7512991813,5cyclictest0-21swapper/020:35:000
751299181,2cyclictest25728-21if_enp1s023:30:160
751299180,17cyclictest455-21plymouthd20:45:200
752199172,1cyclictest0-21swapper/219:20:132
7521991716,1cyclictest5627-21sendmail-mta22:55:162
7521991714,2cyclictest7869-21cstates21:05:152
7521991714,2cyclictest7253-21sed21:05:002
7521991714,2cyclictest4277-21fschecks_count21:55:142
7521991714,2cyclictest32146-21dpkg22:45:122
7521991714,2cyclictest28665-21grep20:45:142
7521991714,2cyclictest27518-21cstates21:40:122
7521991714,2cyclictest24629-21dpkg19:40:022
7521991714,2cyclictest24629-21dpkg19:40:012
7521991714,2cyclictest19429-21ps00:15:192
7521991714,2cyclictest17766-21dpkg22:20:012
7521991714,2cyclictest15329-21cat22:15:142
7521991714,2cyclictest13020-21awk00:05:162
7521991714,2cyclictest11999-21chrt22:10:052
7521991714,2cyclictest11160-21grep23:05:122
752199170,3cyclictest3978-21H222:10:212
752199170,3cyclictest3978-21H222:10:212
752199170,2cyclictest28074-21expr19:45:152
752199170,2cyclictest20622-21chrt22:25:032
752199170,2cyclictest15644-21cstates00:10:152
752199170,2cyclictest12562-21cstates20:15:132
752199170,16cyclictest8435-21tune2fs19:10:132
752199170,16cyclictest7107-21expr23:55:112
752199170,16cyclictest30312-21cat19:50:142
752199170,16cyclictest29945-21apt-config21:45:002
752199170,16cyclictest29937-21chrt00:35:172
752199170,16cyclictest26504-21df20:40:142
752199170,16cyclictest25406-21cstates23:30:132
752199170,16cyclictest23686-21expr22:30:132
752199170,16cyclictest21751-21cat00:20:172
752199170,16cyclictest17583-21grep20:25:122
752199170,16cyclictest16273-21cstates19:25:142
752199170,16cyclictest10030-21cat00:00:152
752199170,15cyclictest14082-21cpuspeed_turbos23:10:142
751599172,1cyclictest0-21swapper/121:15:051
7515991715,1cyclictest0-21swapper/119:55:141
7515991714,2cyclictest31452-21grep19:50:181
7515991714,2cyclictest31320-21perf22:45:001
7515991714,2cyclictest30170-21find21:45:131
7515991714,2cyclictest28860-21expr20:45:141
7515991714,2cyclictest28245-21munin-run20:45:011
7515991714,2cyclictest25447-21grep19:40:181
7515991714,2cyclictest25447-21grep19:40:171
7515991714,2cyclictest22561-21cat21:30:161
7515991714,2cyclictest20677-21nfsd423:20:181
7515991714,2cyclictest20174-21chrt00:18:431
7515991714,2cyclictest16006-21/usr/sbin/munin19:25:211
7515991714,2cyclictest15613-21munin-run19:25:011
7515991713,3cyclictest863-21avahi-daemon21:50:191
7515991713,3cyclictest843-21systemd-network00:22:481
7515991712,1cyclictest0-21swapper/120:55:131
751599170,2cyclictest9800-21chrt21:08:441
751599170,2cyclictest5569-21sendmail_mailqu23:50:201
751599170,2cyclictest24655-21expr21:35:131
751599170,2cyclictest22747-21nfsd419:35:211
751599170,2cyclictest18685-21/usr/sbin/munin21:25:211
751599170,2cyclictest14501-21snapd23:28:281
751599170,2cyclictest1164-21ntp_kernel_pll_22:45:181
751599170,2cyclictest11181-21cpuspeed_turbos23:05:121
751599170,2cyclictest0-21swapper/119:30:201
751599170,1cyclictest0-21swapper/121:10:181
751599170,16cyclictest870-21systemd-logind00:14:411
751599170,16cyclictest6996-21df22:00:151
751599170,16cyclictest4276-21ntp_offset22:50:171
751599170,16cyclictest4226-21cat21:55:141
751599170,16cyclictest30158-21basename23:40:001
751599170,16cyclictest23203-21munin-run22:30:011
751599170,16cyclictest16619-21grep21:20:141
751599170,15cyclictest3981-21H222:10:211
7512991714,2cyclictest4921-21sshd22:51:360
7512991714,2cyclictest31458-21awk21:45:220
7512991714,2cyclictest30721-21expr19:50:140
7512991714,2cyclictest28976-21proc_pri19:45:210
7512991714,2cyclictest27131-21nfsd420:40:190
7512991714,2cyclictest23660-21chrt19:38:340
7512991714,2cyclictest18321-21cat00:15:130
7512991714,2cyclictest17574-21wc19:25:200
7512991714,2cyclictest1525-21lxd23:18:360
7512991714,2cyclictest12977-21irqstats20:15:150
7512991712,4cyclictest27205-21munin-plugin-st19:45:000
7512991712,4cyclictest27205-21munin-plugin-st19:45:000
751299171,15cyclictest0-21swapper/021:00:220
751299170,2cyclictest4159-21grep23:50:140
751299170,2cyclictest399-20systemd-journal00:09:000
751299170,2cyclictest28808-21sed21:40:190
751299170,2cyclictest1929-21grep19:55:180
751299170,2cyclictest1552-21df23:45:170
751299170,2cyclictest15015-21wc22:15:150
751299170,2cyclictest13020-21latency_hist21:15:010
751299170,2cyclictest10554-21missed_timers00:00:180
751299170,1cyclictest0-21swapper/021:55:110
751299170,1cyclictest0-21swapper/021:05:210
751299170,16cyclictest7211-21plymouth22:55:220
751299170,16cyclictest455-21plymouthd21:15:180
751299170,16cyclictest28579-21perf22:40:010
751299170,16cyclictest28429-21if_eno123:35:140
751299170,16cyclictest27310-21grep00:30:160
751299170,16cyclictest27310-21grep00:30:160
751299170,16cyclictest1094-21expr21:50:120
751299170,16cyclictest10208-21/usr/sbin/munin20:10:160
7515991614,1cyclictest31646-21expr20:50:141
7515991614,1cyclictest14925-21cat20:20:101
7515991614,1cyclictest0-21swapper/123:10:141
7515991614,1cyclictest0-21swapper/122:15:051
7515991614,1cyclictest0-21swapper/121:40:171
7515991614,1cyclictest0-21swapper/120:35:151
7515991614,1cyclictest0-21swapper/119:45:151
7515991613,2cyclictest23464-21cpuspeed_turbos22:30:141
7515991613,2cyclictest17717-21cpuspeed_turbos20:25:121
751599160,2cyclictest18215-21expr22:20:121
751599160,1cyclictest8762-21expr23:00:141
751599160,15cyclictest26541-21cat00:30:131
751599160,15cyclictest26541-21cat00:30:121
751599160,15cyclictest20724-21cat20:30:131
751599160,15cyclictest12285-21cat22:10:131
751599160,15cyclictest0-21swapper/123:55:091
751599160,15cyclictest0-21swapper/123:15:161
751599160,15cyclictest0-21swapper/120:00:171
751599160,15cyclictest0-21swapper/100:05:151
7512991615,0cyclictest0-21swapper/022:20:010
7512991614,1cyclictest20401-21kernelversion23:20:170
7512991614,1cyclictest11068-21/usr/sbin/munin23:05:200
7512991614,1cyclictest0-21swapper/023:25:110
7512991614,1cyclictest0-21swapper/023:00:190
7512991614,1cyclictest0-21swapper/021:25:120
7512991614,1cyclictest0-21swapper/020:50:130
7512991614,1cyclictest0-21swapper/020:20:120
7512991614,1cyclictest0-21swapper/000:25:100
7512991614,1cyclictest0-21swapper/000:20:060
7512991613,2cyclictest6573-21grep20:05:140
7512991613,2cyclictest31306-21apt-get22:45:020
7512991613,2cyclictest1100-21snmpd21:20:040
751299160,2cyclictest25055-21chrt20:36:320
751299160,2cyclictest15703-21sed23:10:230
751299160,2cyclictest13592-21cat19:20:140
751299160,1cyclictest6857-21expr23:55:100
751299160,1cyclictest0-21swapper/022:25:130
751299160,1cyclictest0-21swapper/022:02:140
751299160,15cyclictest24684-21expr21:35:130
751299160,15cyclictest19837-21chrt20:29:430
751299160,15cyclictest0-21swapper/023:40:140
751299160,15cyclictest0-21swapper/020:05:000
751299160,15cyclictest0-21swapper/000:10:170
7512991514,1cyclictest0-21swapper/019:10:100
751299150,1cyclictest0-21swapper/022:05:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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