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2026-06-14 - 03:36
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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 highest latencies:
System rackdslot0.osadl.org (updated Sun Jun 14, 2026 00:46:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
835299253,16cyclictest30569-21expr20:45:122
835299250,5cyclictest0-21swapper/220:52:492
835299250,24cyclictest843-21systemd-network19:14:442
835299240,18cyclictest30480-21cut23:35:182
834799244,2cyclictest0-21swapper/122:22:591
835299239,10cyclictest28774-21postgres21:38:102
8352992318,4cyclictest4035-21H222:10:212
835299230,2cyclictest27765-21expr20:40:152
835299230,22cyclictest0-21swapper/220:37:092
835299230,17cyclictest18602-21if_lxdbr000:10:192
835299230,16cyclictest29168-21cut23:35:012
835299230,16cyclictest20712-21hddtemp_smartct19:30:162
834799235,3cyclictest14225-21cat19:20:141
8347992319,3cyclictest6709-21munin-run21:00:001
8352992214,7cyclictest6872-21if_eno123:50:152
8352992214,7cyclictest0-21swapper/219:25:122
835299221,2cyclictest7960-21grep21:00:152
835299221,15cyclictest27569-21chrt22:32:572
835299221,15cyclictest0-21swapper/221:17:322
835299220,2cyclictest28367-21perf19:45:002
835299220,2cyclictest19236-21apache_volume20:25:132
835299220,21cyclictest0-21swapper/221:45:502
835299220,1cyclictest15666-21cut19:20:192
835299220,16cyclictest3976-21H222:10:212
835299220,16cyclictest21654-21ls21:25:142
835299220,16cyclictest15377-21switchtime20:15:202
835299220,16cyclictest15377-21switchtime20:15:202
835299220,15cyclictest0-21swapper/222:10:152
834799225,16cyclictest16144-21expr23:10:121
834799223,18cyclictest0-21swapper/121:25:161
8347992219,2cyclictest7458-21grep22:55:111
8347992219,2cyclictest10636-21cat20:10:001
8347992218,3cyclictest6319-21df_inode21:55:161
8347992218,3cyclictest28361-21sort21:35:201
8347992218,3cyclictest25109-21nfsd421:30:181
8347992218,3cyclictest19104-21sed23:15:141
8347992218,3cyclictest1626-21date00:40:011
8347992218,3cyclictest1626-21date00:40:011
8347992218,3cyclictest1496-21systemctl21:45:201
8347992218,3cyclictest0-21swapper/122:35:211
834799220,21cyclictest0-21swapper/123:26:581
8352992114,6cyclictest2700-21apache_processe21:50:122
8352992114,6cyclictest12769-21nfsd400:00:182
8352992114,6cyclictest0-21swapper/223:40:012
8352992114,6cyclictest0-21swapper/221:20:152
8352992114,6cyclictest0-21swapper/220:24:252
835299210,2cyclictest1833-21expr22:45:132
835299210,20cyclictest23904-21cut19:35:182
835299210,20cyclictest23209-21postgres23:22:152
835299210,20cyclictest19003-21fschecks_count23:15:142
835299210,20cyclictest0-21swapper/222:55:202
835299210,20cyclictest0-21swapper/221:30:152
835299210,1cyclictest0-21swapper/222:50:232
835299210,1cyclictest0-21swapper/222:15:192
835299210,15cyclictest8183-21cpuspeed_turbos20:05:142
834799215,15cyclictest0-21swapper/100:30:141
834799214,2cyclictest19071-21cat19:25:201
834799214,16cyclictest3401-21df_inode21:50:161
834799214,16cyclictest25671-21cat00:25:011
834799214,16cyclictest15294-21fgrep20:15:211
834799214,16cyclictest15294-21fgrep20:15:201
834799214,16cyclictest12847-21wc19:15:191
834799214,16cyclictest0-21swapper/119:55:011
834799213,17cyclictest533-21apt-config20:50:021
8347992118,2cyclictest6311-21tr23:50:131
8347992118,2cyclictest28647-21missed_timers20:40:191
8347992118,2cyclictest28221-21chrt00:29:571
8347992118,2cyclictest27498-21latency_hist20:40:001
8347992118,2cyclictest21711-21munin-plugin-st20:30:021
8347992118,2cyclictest17704-21/usr/sbin/munin00:10:231
8347992117,3cyclictest5890-21date23:50:011
8347992117,2cyclictest8024-21fschecks_time21:00:161
8345992114,3cyclictest0-21swapper/023:45:130
8352992016,3cyclictest0-21swapper/200:30:122
8352992014,5cyclictest6549-21sendmail-msp21:00:012
8352992014,5cyclictest1-21systemd19:50:022
8352992013,6cyclictest455-21plymouthd00:35:142
8352992013,6cyclictest455-21plymouthd00:35:132
8352992013,6cyclictest31459-21users21:40:212
8352992013,6cyclictest29318-21expr19:45:142
8352992013,6cyclictest23751-21expr00:20:142
8352992013,6cyclictest22231-21expr20:30:132
8352992013,6cyclictest14633-21cat23:05:212
835299200,2cyclictest7688-21cron20:05:012
835299200,1cyclictest0-21swapper/223:00:112
835299200,1cyclictest0-21swapper/222:40:182
835299200,1cyclictest0-21swapper/222:25:142
835299200,1cyclictest0-21swapper/222:25:142
835299200,1cyclictest0-21swapper/221:10:182
835299200,1cyclictest0-21swapper/219:16:312
835299200,19cyclictest3991-21H222:10:212
835299200,16cyclictest6999-21awk21:55:202
835299200,15cyclictest29023-21if_err_lxdbr022:35:172
835299200,15cyclictest0-21swapper/221:05:182
835299200,15cyclictest0-21swapper/200:25:342
835299200,14cyclictest0-21swapper/200:16:462
834799204,2cyclictest1592-21awk23:40:161
834799203,16cyclictest9338-21fschecks_time19:10:141
834799203,16cyclictest0-21swapper/123:05:141
834799203,16cyclictest0-21swapper/122:45:001
834799203,16cyclictest0-21swapper/122:25:131
834799203,16cyclictest0-21swapper/122:25:121
834799203,16cyclictest0-21swapper/122:15:531
834799203,16cyclictest0-21swapper/121:05:171
834799203,16cyclictest0-21swapper/120:35:001
834799203,16cyclictest0-21swapper/119:55:171
834799203,16cyclictest0-21swapper/100:00:141
834799202,17cyclictest0-21swapper/121:40:201
834799202,17cyclictest0-21swapper/119:40:031
8347992017,2cyclictest15036-21taskset21:11:581
8347992017,2cyclictest0-21swapper/123:00:061
8347992017,2cyclictest0-21swapper/100:05:021
8347992016,3cyclictest24619-21timerwakeupswit19:35:241
8347992016,3cyclictest0-21swapper/123:30:171
8347992015,4cyclictest0-21swapper/120:20:151
834799201,18cyclictest0-21swapper/122:50:191
834799201,18cyclictest0-21swapper/120:00:201
8345992016,3cyclictest0-21swapper/019:31:010
8352991916,2cyclictest0-21swapper/200:09:012
8352991915,3cyclictest0-21swapper/222:20:162
8352991913,5cyclictest0-21swapper/220:10:202
8352991912,6cyclictest12074-21if_err_lxdbr022:05:162
835299190,18cyclictest0-21swapper/223:13:362
835299190,0cyclictest0-21swapper/222:00:142
835299190,0cyclictest0-21swapper/222:00:142
834799193,15cyclictest0-21swapper/122:10:031
834799192,16cyclictest0-21swapper/123:35:221
834799192,16cyclictest0-21swapper/122:45:161
834799192,16cyclictest0-21swapper/120:10:201
834799192,16cyclictest0-21swapper/119:45:111
8347991916,2cyclictest22956-21wc23:20:211
8347991916,2cyclictest0-21swapper/120:50:011
834799191,17cyclictest0-21swapper/121:15:231
8345991915,3cyclictest19342-21grep20:25:140
8345991914,4cyclictest0-21swapper/022:18:000
834599190,18cyclictest870-21systemd-logind00:26:520
8352991816,1cyclictest3360-21expr23:45:132
8347991815,2cyclictest0-21swapper/122:30:131
8347991815,2cyclictest0-21swapper/119:30:141
834799181,17cyclictest0-21swapper/100:17:511
834799181,16cyclictest0-21swapper/122:05:141
8345991817,0cyclictest0-21swapper/022:25:000
8345991816,1cyclictest308582chrt00:33:490
8345991814,2cyclictest21772-21nfsd400:15:160
834599181,3cyclictest0-21swapper/021:16:490
834599181,16cyclictest3987-21H222:10:210
834599180,3cyclictest30861-21cut21:40:180
834599180,3cyclictest0-21swapper/020:15:140
834599180,3cyclictest0-21swapper/020:15:140
834599180,2cyclictest3987-21H222:10:210
834599180,17cyclictest870-21systemd-logind22:46:520
8347991714,2cyclictest19603-21needreboot21:20:161
834799171,15cyclictest0-21swapper/123:55:131
834799170,17cyclictest0-21swapper/122:00:151
834799170,17cyclictest0-21swapper/122:00:141
834599172,1cyclictest9-21ksoftirqd/019:51:180
834599172,15cyclictest9-21ksoftirqd/020:04:070
8345991716,1cyclictest9-21ksoftirqd/021:05:150
8345991714,2cyclictest3981-21H222:10:210
8345991714,2cyclictest3981-21H222:10:210
8345991714,2cyclictest3976-21H222:10:210
8345991714,2cyclictest32305-21kernelversion00:35:170
8345991714,2cyclictest32305-21kernelversion00:35:160
8345991714,2cyclictest2069-21systemd-udevd23:08:510
8345991714,2cyclictest17417-21irqstats20:20:170
8345991714,2cyclictest1493-21ls20:50:150
8345991713,3cyclictest16333-21fschecks_time23:10:130
8345991713,3cyclictest0-21swapper/019:17:240
8345991712,3cyclictest0-21swapper/021:01:130
834599171,15cyclictest4052-21sh19:55:190
834599170,2cyclictest4099-21H222:10:210
834599170,2cyclictest4035-21H222:10:210
834599170,2cyclictest3979-21H222:10:210
834599170,2cyclictest31032-21sendmail-mta19:49:430
834599170,2cyclictest25449-21sshd00:24:200
834599170,2cyclictest22516-21expr20:30:140
834599170,1cyclictest3985-21H222:10:210
834599170,1cyclictest3976-21H222:10:210
834599170,1cyclictest0-21swapper/019:44:470
834599170,16cyclictest9360-21smartctl19:10:160
834599170,16cyclictest8055-21perf22:00:010
834599170,16cyclictest4035-21H222:10:210
834599170,16cyclictest32617-21apt-get23:40:100
834599170,16cyclictest32405-21chrt20:47:310
834599170,16cyclictest31641-21expr22:40:150
834599170,16cyclictest24959-21cat20:35:130
834599170,16cyclictest19782-21/usr/sbin/munin23:15:190
834599170,16cyclictest13095-21chrt20:12:220
834599170,15cyclictest3989-21H222:10:210
8345991614,1cyclictest3985-21H222:10:210
8345991614,1cyclictest29533-21ntp_kernel_pll_22:35:180
8345991614,1cyclictest24456-21fschecks_count23:25:140
8345991614,1cyclictest0-21swapper/023:50:220
8345991614,1cyclictest0-21swapper/022:05:150
8345991614,1cyclictest0-21swapper/022:00:230
8345991614,1cyclictest0-21swapper/022:00:230
8345991614,1cyclictest0-21swapper/021:50:090
8345991614,1cyclictest0-21swapper/021:27:320
8345991614,1cyclictest0-21swapper/021:10:180
8345991614,1cyclictest0-21swapper/020:55:190
8345991614,1cyclictest0-21swapper/000:10:190
8345991613,2cyclictest24467-21expr21:30:130
8345991613,2cyclictest12335-21munin-run23:05:000
834599160,15cyclictest24233-21/usr/sbin/munin22:25:200
834599160,15cyclictest24233-21/usr/sbin/munin22:25:200
834599160,15cyclictest18467-21apt-get21:20:120
834599160,15cyclictest14812-21ls22:10:120
834599160,15cyclictest0-21swapper/021:35:110
834599160,15cyclictest0-21swapper/020:40:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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