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2025-12-25 - 03:11
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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 Thu Dec 25, 2025 00:45:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
12244992724,2cyclictest23095-21mii-tool20:25:160
12246992517,7cyclictest30892-21cpuspeed_turbos22:35:142
12246992513,7cyclictest4692-21ntp_states23:40:192
12246992317,3cyclictest1569-21wc00:35:112
12246992314,5cyclictest0-21swapper/221:20:102
12246992314,4cyclictest0-21swapper/200:05:252
12246992313,8cyclictest9832-21munin-plugin-st22:55:012
1224699231,2cyclictest21665-21chrt20:22:392
12246992310,10cyclictest17390-21chrt19:17:352
1224699230,2cyclictest29200-21perf23:30:002
1224699230,2cyclictest14026-21cut23:00:192
1224699230,22cyclictest23065-21perf19:30:012
1224699230,16cyclictest30848-21/usr/sbin/munin00:30:122
12246992214,7cyclictest11432-21uname22:55:202
1224699221,20cyclictest2051-21chrt23:35:562
1224699220,2cyclictest28239-21cpuspeed_turbos00:25:142
1224699220,2cyclictest28001-21expr20:35:142
1224699220,2cyclictest2634-21apache_volume21:45:102
1224699220,2cyclictest17305-21timerwakeupswit23:05:212
1224699220,21cyclictest24066-21latency_hist23:20:012
1224699220,1cyclictest5813-21expr21:50:132
12244992214,4cyclictest0-21swapper/000:20:000
12244992211,7cyclictest9-21ksoftirqd/022:25:000
12246992114,6cyclictest32158-21pzem_current20:40:182
12246992114,6cyclictest29604-21apache_volume23:30:132
12246992113,7cyclictest13556-21awk21:05:192
12246992113,7cyclictest1035-21thermald20:30:232
12246992112,8cyclictest0-21swapper/222:17:362
1224699210,3cyclictest0-21swapper/220:50:232
1224699210,2cyclictest3981-21H222:10:212
1224699210,20cyclictest20679-21perf21:20:002
1224699210,20cyclictest12341-21netstat22:00:192
1224699210,20cyclictest0-21swapper/222:47:412
1224699210,20cyclictest0-21swapper/221:10:142
1224699210,20cyclictest0-21swapper/219:33:382
1224699210,20cyclictest0-21swapper/200:20:162
1224699210,20cyclictest0-21swapper/200:18:522
1224699210,1cyclictest3989-21H222:10:212
1224699210,16cyclictest6975-21cut20:55:132
1224699210,15cyclictest12486-21nfsd420:05:202
1224699210,15cyclictest0-21swapper/222:25:202
1224699210,15cyclictest0-21swapper/220:15:212
1224699210,0cyclictest0-21swapper/219:20:162
12245992117,3cyclictest0-21swapper/120:27:541
1224599210,3cyclictest0-21swapper/100:25:561
12244992111,5cyclictest0-21swapper/022:30:200
1224699204,15cyclictest0-21swapper/221:45:012
12246992014,5cyclictest29510-21cat21:35:132
12246992014,5cyclictest1777-21cut20:45:162
12246992014,5cyclictest0-21swapper/221:30:012
12246992014,5cyclictest0-21swapper/219:50:122
12246992013,6cyclictest3979-21H222:10:212
12246992013,6cyclictest22768-21expr22:20:132
12246992013,6cyclictest21109-21needreboot00:10:192
12246992013,6cyclictest0-21swapper/223:45:192
1224699200,2cyclictest28013-21timerwakeupswit19:35:212
1224699200,1cyclictest0-21swapper/223:10:172
1224699200,1cyclictest0-21swapper/219:10:202
1224699200,19cyclictest0-21swapper/223:55:212
1224699200,19cyclictest0-21swapper/223:50:172
1224699200,19cyclictest0-21swapper/219:40:172
1224699200,18cyclictest0-21swapper/221:30:162
1224699200,15cyclictest0-21swapper/219:50:012
1224699200,14cyclictest0-21swapper/221:00:142
1224699200,14cyclictest0-21swapper/219:55:242
1224599203,2cyclictest4234-21cpuspeed_turbos20:50:161
1224599200,17cyclictest0-21swapper/121:09:351
1224599200,17cyclictest0-21swapper/119:52:221
12244992015,4cyclictest0-21swapper/022:54:170
1224499200,6cyclictest843-21systemd-network20:35:370
12246991914,4cyclictest0-21swapper/223:20:132
12246991913,5cyclictest0-21swapper/222:05:122
12246991913,5cyclictest0-21swapper/200:00:162
1224699190,1cyclictest3983-21H222:10:212
1224699190,1cyclictest3983-21H222:10:212
1224699190,1cyclictest0-21swapper/222:40:142
1224699190,14cyclictest0-21swapper/220:10:152
12245991916,1cyclictest0-21swapper/122:01:501
1224599190,2cyclictest3981-21H222:10:211
1224599190,17cyclictest4099-21H222:10:211
1224599190,16cyclictest3981-21H222:10:211
12244991916,2cyclictest9454-21http_loadtime23:50:150
12244991916,2cyclictest1829-21systemd-journal19:34:580
1224499190,15cyclictest0-21swapper/019:50:540
1224699180,0cyclictest0-21swapper/221:59:012
1224599182,15cyclictest5238-21cron21:50:011
1224599182,15cyclictest175852chrt21:10:361
1224599182,15cyclictest0-21swapper/100:37:591
12245991817,1cyclictest21-21ksoftirqd/121:53:331
12245991815,2cyclictest3979-21H222:10:211
12245991815,1cyclictest0-21swapper/120:40:171
12245991814,3cyclictest3989-21H222:10:211
12245991814,3cyclictest2007-21systemd-journal23:26:371
1224599180,2cyclictest4099-21H222:10:211
1224599180,2cyclictest3991-21H222:10:211
1224599180,15cyclictest0-21swapper/119:30:171
1224499182,15cyclictest9-21ksoftirqd/021:14:230
1224499182,15cyclictest0-21swapper/020:50:360
12244991816,1cyclictest0-21swapper/020:45:160
12244991815,2cyclictest6097-21swap22:45:200
12244991815,2cyclictest20080-21ntpq23:10:190
12244991814,3cyclictest3259-21cpuspeed_turbos23:40:140
12244991814,3cyclictest3053-21systemd-logind19:22:520
1224499181,2cyclictest15503-21open_files20:10:190
1224499181,16cyclictest0-21swapper/019:25:170
1224499180,3cyclictest2751-21grep22:40:170
1224499180,2cyclictest4099-21H222:10:210
1224499180,2cyclictest3989-21H222:10:210
1224499180,1cyclictest0-21swapper/019:35:560
1224599172,1cyclictest21-21ksoftirqd/120:19:261
12245991716,1cyclictest21-21ksoftirqd/119:45:151
12245991715,1cyclictest21-21ksoftirqd/120:31:261
12245991715,1cyclictest21-21ksoftirqd/119:57:201
12245991715,1cyclictest0-21swapper/123:35:121
12245991715,1cyclictest0-21swapper/120:05:201
12245991714,2cyclictest8164-21sed22:50:171
12245991714,2cyclictest4035-21H222:10:211
12245991714,2cyclictest3987-21H222:10:211
12245991714,2cyclictest31527-21awk22:35:151
12245991714,2cyclictest20815-21if_lxdbr000:10:171
12245991714,2cyclictest13975-21awk23:00:181
1224599170,2cyclictest6000-21cat23:45:101
1224599170,2cyclictest3981-21H222:10:211
1224599170,2cyclictest26726-21tr21:30:141
1224599170,2cyclictest21958-21expr23:15:151
1224599170,2cyclictest2007-21systemd-journal22:56:381
1224599170,2cyclictest19577-21awk21:15:181
1224599170,2cyclictest19559-21latency_hist00:10:001
1224599170,2cyclictest18603-21apt-config23:10:021
1224599170,1cyclictest0-21swapper/120:55:101
1224599170,16cyclictest4035-21H222:10:211
1224599170,16cyclictest3989-21H222:10:211
1224599170,16cyclictest3987-21H222:10:211
1224599170,16cyclictest30807-21nfsd423:30:181
1224599170,16cyclictest28398-21grep20:35:161
1224599170,16cyclictest26162-21idleruntime00:20:131
1224599170,16cyclictest22435-21nfsd421:20:161
1224599170,16cyclictest21772-21chrt20:24:061
1224599170,16cyclictest2099-21chrt21:43:521
1224599170,16cyclictest15343-21missed_timers00:00:201
1224599170,16cyclictest12722-21awk23:55:181
1224599170,16cyclictest0-21swapper/100:34:341
12244991715,1cyclictest3976-21H222:10:210
12244991715,1cyclictest27158-21expr00:20:200
12244991715,1cyclictest0-21swapper/019:12:180
12244991714,2cyclictest9907-21/usr/sbin/munin22:55:210
12244991714,2cyclictest6876-21nfsd421:50:180
12244991714,2cyclictest24495-21fschecks_time21:25:130
12244991714,2cyclictest20923-21latency00:10:170
12244991714,2cyclictest1481-21snapd23:45:080
12244991714,2cyclictest1079-21cups-browsed19:45:020
12244991714,1cyclictest0-21swapper/019:57:540
12244991714,1cyclictest0-21swapper/000:06:010
1224499171,2cyclictest3981-21H222:10:210
1224499171,15cyclictest0-21swapper/023:05:360
1224499171,15cyclictest0-21swapper/021:55:120
1224499171,15cyclictest0-21swapper/000:00:170
1224499170,2cyclictest3983-21H222:10:210
1224499170,2cyclictest3979-21H222:10:210
1224499170,2cyclictest1856-21systemd-udevd22:06:520
1224499170,2cyclictest1522-21lxd23:00:330
1224499170,16cyclictest4099-21H222:10:210
1224499170,16cyclictest3707-21master19:40:020
1224499170,16cyclictest3351-21lxd23:36:330
1224499170,16cyclictest26212-21nfsd420:30:180
1224499170,16cyclictest24593-21python322:25:020
1224499170,16cyclictest15822-21expr19:15:140
1224499170,16cyclictest12792-21grep23:55:190
1224499170,16cyclictest1174-21nfsd421:40:180
1224499170,16cyclictest0-21swapper/023:25:130
12245991614,1cyclictest261362sleep123:20:491
12245991614,1cyclictest0-21swapper/122:30:161
12245991614,1cyclictest0-21swapper/122:15:101
12245991614,1cyclictest0-21swapper/119:35:031
12245991613,2cyclictest13842-21/usr/sbin/munin22:05:121
1224599160,2cyclictest0-21swapper/120:10:191
1224599160,1cyclictest0-21swapper/120:05:011
1224599160,1cyclictest0-21swapper/120:05:011
1224599160,15cyclictest23872-21cpuspeed_turbos21:25:131
1224599160,15cyclictest10655-21memory21:00:171
1224599160,15cyclictest0-21swapper/121:55:151
1224599160,15cyclictest0-21swapper/100:15:151
12244991614,1cyclictest24739-21/usr/sbin/munin23:20:140
12244991614,1cyclictest0-21swapper/023:15:180
12244991614,1cyclictest0-21swapper/021:30:170
12244991614,1cyclictest0-21swapper/021:15:120
12244991614,1cyclictest0-21swapper/021:05:170
12244991614,1cyclictest0-21swapper/020:20:080
12244991614,1cyclictest0-21swapper/020:15:140
12244991614,1cyclictest0-21swapper/020:00:180
12244991614,1cyclictest0-21swapper/020:00:170
12244991614,1cyclictest0-21swapper/000:35:120
12244991613,2cyclictest26616-21tlsmgr22:02:210
12244991613,2cyclictest11381-21cpuspeed_turbos20:05:150
1224499160,1cyclictest4099-21H222:10:210
1224499160,1cyclictest0-21swapper/020:55:160
1224499160,15cyclictest788-21munin-run20:45:010
1224499160,15cyclictest3981-21H222:10:210
1224499160,15cyclictest0-21swapper/021:00:190
12245991513,1cyclictest0-21swapper/122:20:221
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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