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2026-03-10 - 04:23
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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 792 highest latencies:
System rackdslot0.osadl.org (updated Tue Mar 10, 2026 00:45:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2276499262,18cyclictest3450-21gsd-color20:10:000
2276499260,5cyclictest0-21swapper/020:15:030
22765992423,0cyclictest0-21swapper/121:30:141
22766992313,5cyclictest0-21swapper/221:00:172
22765992220,1cyclictest12135-21mii-tool23:35:141
22765992212,0cyclictest0-21swapper/100:14:011
2276499223,1cyclictest0-21swapper/021:25:190
2276499221,2cyclictest24541-21chrt23:57:490
2276499221,1cyclictest44402sleep000:15:510
2276499220,1cyclictest0-21swapper/020:24:090
2276499220,15cyclictest0-21swapper/020:35:190
22764992114,6cyclictest0-21swapper/019:35:010
22764992112,5cyclictest4900-21grep21:30:130
22764992112,5cyclictest0-21swapper/019:55:180
2276499210,2cyclictest18723-21expr20:00:140
2276499210,20cyclictest6314-21/usr/sbin/munin19:35:200
2276499210,20cyclictest0-21swapper/023:15:120
2276499210,20cyclictest0-21swapper/019:55:010
2276499210,1cyclictest0-21swapper/021:40:010
2276499210,1cyclictest0-21swapper/019:15:000
2276499210,19cyclictest5445-21https23:25:010
2276499210,16cyclictest9336-21ls20:40:150
2276499210,16cyclictest8052-21grep21:35:140
2276499210,16cyclictest6034-21chrt22:27:300
2276499210,16cyclictest26194-21postgres20:11:010
2276499210,16cyclictest0-21swapper/000:27:320
2276499210,15cyclictest19047-21chrt23:47:160
2276499210,15cyclictest0-21swapper/021:10:210
2276499210,15cyclictest0-21swapper/019:40:150
2276499210,15cyclictest0-21swapper/019:40:150
22766992018,1cyclictest0-21swapper/221:30:182
2276699200,20cyclictest0-21swapper/223:13:492
2276699200,20cyclictest0-21swapper/223:13:482
22765992010,10cyclictest0-21swapper/120:35:191
22764992015,4cyclictest0-21swapper/000:11:380
22764992014,5cyclictest2262-21seq20:27:570
22764992014,5cyclictest17774-21mailstats21:50:210
22764992014,5cyclictest0-21swapper/022:15:190
22764992014,5cyclictest0-21swapper/019:22:490
22764992014,5cyclictest0-21swapper/019:15:200
22764992013,6cyclictest7248-21ntp_offset23:25:180
22764992013,6cyclictest32513-21awk19:25:170
22764992013,6cyclictest0-21swapper/022:40:200
2276499200,2cyclictest16588-21sed20:55:010
2276499200,1cyclictest31324-21taskset23:12:240
2276499200,1cyclictest31324-21taskset23:12:240
2276499200,1cyclictest29310-21postgres22:11:320
2276499200,1cyclictest17728-21perf22:50:000
2276499200,1cyclictest0-21swapper/022:50:290
2276499200,1cyclictest0-21swapper/022:30:150
2276499200,1cyclictest0-21swapper/021:45:170
2276499200,1cyclictest0-21swapper/021:20:120
2276499200,1cyclictest0-21swapper/000:05:170
2276499200,19cyclictest0-21swapper/023:40:210
2276499200,19cyclictest0-21swapper/023:00:230
2276499200,19cyclictest0-21swapper/022:00:220
2276499200,19cyclictest0-21swapper/000:20:500
2276499200,16cyclictest10583-21nfsd422:35:190
2276499200,15cyclictest8889-21ls23:30:120
2276499200,15cyclictest0-21swapper/023:05:210
2276699194,15cyclictest0-21swapper/200:26:312
22766991917,1cyclictest29489-21latency21:15:192
2276699190,18cyclictest399-20systemd-journal22:05:002
2276599199,9cyclictest22176-21nfsd422:55:181
2276599192,2cyclictest29392-21sed20:20:021
2276599192,16cyclictest0-21swapper/123:26:061
22765991917,1cyclictest0-21swapper/100:35:121
22765991916,2cyclictest15745-21cron21:50:001
22765991914,3cyclictest0-21swapper/122:08:371
2276599190,18cyclictest0-21swapper/119:26:441
2276599190,17cyclictest0-21swapper/122:45:151
22764991914,4cyclictest0-21swapper/021:55:130
22764991913,5cyclictest0-21swapper/022:57:040
22764991912,6cyclictest0-21swapper/023:35:180
2276499190,1cyclictest0-21swapper/022:05:160
2276499190,1cyclictest0-21swapper/021:00:190
2276499190,1cyclictest0-21swapper/020:30:180
2276499190,1cyclictest0-21swapper/000:30:160
2276499190,1cyclictest0-21swapper/000:00:170
2276499190,18cyclictest0-21swapper/000:35:170
2276499190,0cyclictest0-21swapper/022:24:060
22766991816,1cyclictest23168-21cpuspeed_turbos19:10:142
22766991816,1cyclictest0-21swapper/223:20:462
22766991816,1cyclictest0-21swapper/222:20:142
22766991815,2cyclictest3053-21systemd-logind19:58:522
22766991815,2cyclictest30156-21sed00:05:212
22766991815,2cyclictest19235-21grep20:00:142
22766991815,1cyclictest0-21swapper/219:28:292
2276699180,2cyclictest15844-21cron00:40:012
2276699180,16cyclictest3987-21H222:10:212
22765991815,2cyclictest2106-21expr19:30:141
22765991814,3cyclictest0-21swapper/123:20:141
2276599181,2cyclictest23759-21chrt20:09:481
2276599181,16cyclictest0-21swapper/123:16:291
2276599180,3cyclictest19258-21fschecks_time20:00:151
22764991814,3cyclictest0-21swapper/021:05:140
22764991813,4cyclictest0-21swapper/023:50:160
22764991813,4cyclictest0-21swapper/020:55:200
22764991811,6cyclictest29488-21latency21:15:180
22766991715,1cyclictest61632chrt22:29:172
22766991714,2cyclictest5815-21apt-config23:25:012
22766991714,2cyclictest3111-21expr19:30:172
22766991714,2cyclictest25857-21switchtime20:10:222
22766991714,2cyclictest1856-21systemd-udevd22:36:512
22766991714,2cyclictest13287-21fschecks_count22:40:132
2276699171,15cyclictest12815-21nfsd420:45:192
2276699170,2cyclictest7641-21/usr/sbin/munin19:40:122
2276699170,2cyclictest7641-21/usr/sbin/munin19:40:112
2276699170,2cyclictest5496-21date19:35:142
2276699170,2cyclictest27294-21cat20:15:162
2276699170,2cyclictest21616-21idleruntime22:55:152
2276699170,2cyclictest18503-21pzem_power20:55:202
2276699170,2cyclictest1057-21cron23:55:002
2276699170,16cyclictest9575-21chrt21:38:082
2276699170,16cyclictest7449-21sendmail_mailst20:35:212
2276699170,16cyclictest3300-21expr20:30:142
2276699170,16cyclictest32406-21expr23:15:132
2276699170,16cyclictest29909-21grep20:20:132
2276699170,16cyclictest2950-21nfsd421:25:172
2276699170,16cyclictest27340-21fgrep19:15:202
2276699170,16cyclictest21447-21cat22:00:012
2276699170,16cyclictest1516-21lxd20:40:482
2276699170,16cyclictest10469-21apt-key21:40:022
2276699170,16cyclictest0-21swapper/222:10:152
22765991715,1cyclictest3976-21H222:10:211
22765991715,1cyclictest0-21swapper/120:20:151
22765991715,1cyclictest0-21swapper/100:30:181
22765991714,2cyclictest917-21chrt21:22:211
22765991714,2cyclictest8991-21missed_timers00:25:171
22765991714,2cyclictest27792-21apt-config00:05:001
22765991714,2cyclictest27624-21expr23:05:171
22765991714,2cyclictest24595-21pzem19:10:211
22765991714,2cyclictest22407-21apache_volume23:55:121
22765991714,2cyclictest19344-21nfsd422:50:181
22765991714,2cyclictest19275-21apt-get21:00:011
22765991714,2cyclictest1484-21snapd22:10:081
22765991714,2cyclictest11145-21munin-run23:35:001
22765991713,3cyclictest17570-21ls19:55:221
2276599171,1cyclictest26600-21if_enp1s019:15:151
2276599171,15cyclictest1-21systemd21:38:591
2276599171,15cyclictest0-21swapper/100:05:171
2276599170,2cyclictest9714-21kernelversion20:40:161
2276599170,2cyclictest31169-21vmstat23:10:231
2276599170,2cyclictest31169-21vmstat23:10:231
2276599170,2cyclictest23960-21cron22:05:011
2276599170,2cyclictest19642-21apt-config21:00:001
2276599170,2cyclictest14277-21readlink22:40:201
2276599170,2cyclictest10944-21expr21:40:141
2276599170,16cyclictest21449-21sed23:50:201
2276599170,16cyclictest2007-21systemd-journal22:39:011
2276599170,16cyclictest14880-21fschecks_time23:40:151
2276599170,16cyclictest14298-21awk20:50:141
2276599170,16cyclictest12774-21latency_hist19:50:001
2276599170,16cyclictest12747-21cut20:45:181
2276599170,16cyclictest0-21swapper/119:37:241
2276599170,15cyclictest3182-21nvmesmart_nvme021:25:191
22764991710,5cyclictest0-21swapper/020:45:120
22766991614,1cyclictest27381-21missed_timers23:05:172
22766991614,1cyclictest0-21swapper/223:45:212
22766991614,1cyclictest0-21swapper/223:40:122
22766991614,1cyclictest0-21swapper/223:37:382
22766991614,1cyclictest0-21swapper/222:05:112
22766991614,1cyclictest0-21swapper/221:52:352
22766991614,1cyclictest0-21swapper/221:20:142
22766991614,1cyclictest0-21swapper/221:05:222
22766991614,1cyclictest0-21swapper/219:20:132
22766991614,1cyclictest0-21swapper/200:20:162
22766991614,1cyclictest0-21swapper/200:10:142
22766991614,1cyclictest0-21swapper/200:00:172
22766991612,3cyclictest10569-21cpuspeed_turbos19:45:132
2276699160,2cyclictest23302-21cat23:55:162
2276699160,1cyclictest0-21swapper/222:45:152
2276699160,15cyclictest2693-21pluginstate20:30:012
2276699160,15cyclictest23859-21cstates23:00:142
2276699160,15cyclictest2140-21apache_volume00:15:112
2276699160,15cyclictest1085-21gdbus20:50:212
2276699160,15cyclictest0-21swapper/222:50:202
2276699160,15cyclictest0-21swapper/222:15:142
2276699160,15cyclictest0-21swapper/221:45:202
2276699160,15cyclictest0-21swapper/221:10:212
22765991614,1cyclictest0-21swapper/123:45:141
22765991614,1cyclictest0-21swapper/122:30:141
22765991614,1cyclictest0-21swapper/121:50:131
22765991614,1cyclictest0-21swapper/120:30:221
22765991614,1cyclictest0-21swapper/119:50:151
22765991614,1cyclictest0-21swapper/119:40:181
22765991614,1cyclictest0-21swapper/119:40:171
22765991613,2cyclictest23508-21fschecks_time21:05:161
2276599161,14cyclictest28473-21apt-get21:15:141
2276599160,2cyclictest5076-21grep22:25:171
2276599160,2cyclictest32713-21expr20:25:141
2276599160,15cyclictest5183-21trivial-rewrite00:20:021
2276599160,15cyclictest30252-21grep22:15:141
2276599160,15cyclictest2417-21expr00:15:131
2276599160,15cyclictest0-21swapper/123:00:141
2276599160,15cyclictest0-21swapper/122:20:001
22766991514,1cyclictest0-21swapper/200:30:122
2276599150,14cyclictest0-21swapper/121:10:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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