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2025-12-08 - 17:00
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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 Mon Dec 08, 2025 12:45:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
17288993433,0cyclictest0-21swapper/012:10:140
17288993433,0cyclictest0-21swapper/012:10:140
17292992313,9cyclictest26476-21kworker/2:108:08:302
1729099236,2cyclictest20297-21latency_hist08:10:011
17288992320,2cyclictest6510-21cat07:45:170
1728899230,5cyclictest0-21swapper/009:05:140
1728899221,4cyclictest0-21swapper/011:00:000
1728899220,18cyclictest0-21swapper/011:35:180
1729299204,15cyclictest0-21swapper/212:13:392
1729299204,15cyclictest0-21swapper/212:13:382
17292992010,1cyclictest0-21swapper/211:46:042
1729099202,17cyclictest0-21swapper/108:15:011
17290991916,1cyclictest0-21swapper/111:35:151
17288991917,1cyclictest0-21swapper/009:48:230
17288991917,1cyclictest0-21swapper/009:10:210
1728899190,2cyclictest11735-21latency_hist10:45:000
1728899190,18cyclictest0-21swapper/011:31:470
1729299182,15cyclictest0-21swapper/209:51:372
1729299182,15cyclictest0-21swapper/209:18:382
17292991816,1cyclictest0-21swapper/210:03:312
17292991816,1cyclictest0-21swapper/210:03:312
1729299181,16cyclictest4535-21H212:26:332
1729299181,16cyclictest21662-21latency07:15:172
1729299180,2cyclictest4534-21H212:26:332
1729299180,17cyclictest0-21swapper/211:13:472
1729299180,16cyclictest1845-21systemd-journal11:09:002
1729099182,1cyclictest31520-21strings12:15:191
17290991816,1cyclictest0-21swapper/112:21:221
1729099180,2cyclictest4593-21H212:26:331
1729099180,17cyclictest0-21swapper/110:28:291
1728899187,0cyclictest0-21swapper/007:20:160
1728899182,15cyclictest30275-21sendmail_mailqu11:15:200
17288991817,1cyclictest0-21swapper/007:30:210
17288991816,1cyclictest11113-21grep11:40:150
17288991816,1cyclictest0-21swapper/010:15:160
17288991816,1cyclictest0-21swapper/008:00:130
17288991815,2cyclictest23715-21chrt10:08:370
17288991815,2cyclictest2012-21chrt07:39:000
17288991815,2cyclictest11690-21cat08:50:170
17288991815,2cyclictest10219-21kernelversion12:35:170
17288991814,3cyclictest0-21swapper/011:10:210
17288991814,2cyclictest1472-21lxd10:45:050
17288991814,2cyclictest0-21swapper/008:25:120
17288991813,4cyclictest0-21swapper/012:26:490
1728899180,2cyclictest8102-21fschecks_count09:40:160
1728899180,1cyclictest0-21swapper/009:18:120
1728899180,16cyclictest32287-21grep09:25:190
1728899180,16cyclictest0-21swapper/008:10:330
17292991715,2cyclictest4535-21H212:26:332
17292991715,1cyclictest28-21ksoftirqd/209:00:092
17292991714,2cyclictest8430-21cat09:40:192
17292991714,2cyclictest8134-21awk12:30:222
17292991714,2cyclictest29013-21latency_hist07:30:012
17292991714,2cyclictest27554-21cat10:15:162
17292991714,2cyclictest1603-21lxd12:28:502
17292991714,2cyclictest12542-21kernelversion07:55:212
17292991714,2cyclictest12527-21basename09:50:012
17292991714,1cyclictest0-21swapper/210:13:342
1729299171,15cyclictest535-21nfsd408:30:202
1729299171,15cyclictest0-21swapper/210:35:152
1729299170,2cyclictest4581-21H212:26:332
1729299170,2cyclictest29726-21ntp_offset09:20:192
1729299170,2cyclictest2618-21/usr/sbin/munin11:25:162
1729299170,2cyclictest14104-21vmstat10:45:252
1729299170,2cyclictest13318-21postgres11:44:382
1729299170,2cyclictest11313-21latency_hist07:55:012
1729299170,1cyclictest0-21swapper/208:45:192
1729299170,16cyclictest7423-21timerandwakeup07:45:212
1729299170,16cyclictest5683-21expr11:30:142
1729299170,16cyclictest4534-21H212:26:332
1729299170,16cyclictest31443-21pzem_energy10:20:212
1729299170,16cyclictest30514-21nfsd407:30:182
1729299170,16cyclictest23345-21irqstats09:10:182
1729299170,16cyclictest19086-21processes10:55:202
1729299170,16cyclictest18649-21fschecks_time07:10:152
1729299170,16cyclictest14987-21cat08:55:202
1729299170,16cyclictest1055-21smartctl07:35:202
1729299170,16cyclictest10353-21chrt11:38:592
1729099172,15cyclictest4593-21H212:26:331
17290991715,1cyclictest0-21swapper/107:30:131
17290991714,2cyclictest754-21needreboot07:35:181
17290991714,2cyclictest29842-21missed_timers11:15:171
17290991714,2cyclictest29814-21nfsd408:25:161
17290991714,2cyclictest25780-21latency_hist11:10:011
17290991714,2cyclictest19607-21expr09:05:141
17290991714,2cyclictest14470-21munin-run10:50:001
17290991714,2cyclictest10359-21grep09:45:141
17290991713,3cyclictest19040-21tr10:00:151
17290991713,3cyclictest19040-21tr10:00:151
1729099171,1cyclictest0-21swapper/108:35:241
1729099171,15cyclictest32286-21nfsd409:25:191
1729099170,2cyclictest26485-21fschecks_count08:20:161
1729099170,2cyclictest21624-21nfsd411:00:211
1729099170,2cyclictest13941-21awk08:00:011
1729099170,1cyclictest4530-21H212:26:331
1729099170,16cyclictest9963-21sendmail_mailqu07:50:221
1729099170,16cyclictest8802-21sessionclean10:39:001
1729099170,16cyclictest6824-21sort09:39:001
1729099170,16cyclictest6824-21sort09:39:001
1729099170,16cyclictest5674-21/usr/sbin/munin07:45:151
1729099170,16cyclictest4098-21expr12:25:131
1729099170,16cyclictest30191-21expr10:20:141
1729099170,16cyclictest27806-21cpuspeed_turbos12:10:121
1729099170,16cyclictest27806-21cpuspeed_turbos12:10:121
1729099170,16cyclictest25845-21perf07:25:021
1729099170,16cyclictest23800-21fschecks_time08:15:151
1729099170,16cyclictest21479-21sshd11:59:251
1729099170,16cyclictest20581-21cut07:15:021
1729099170,16cyclictest15113-21nfsd411:45:181
1729099170,16cyclictest15023-21cpuspeed_turbos10:50:141
1729099170,16cyclictest14985-21ntpq08:55:201
1729099170,16cyclictest1439-21anvil08:34:301
1729099170,16cyclictest0-21swapper/109:55:161
1728899177,9cyclictest0-21swapper/010:10:590
17288991715,1cyclictest1832-21expr09:30:140
17288991714,2cyclictest6992-21cstates10:35:150
17288991714,2cyclictest6534-21chrt09:36:030
17288991714,2cyclictest6534-21chrt09:36:020
17288991714,2cyclictest6161-21idleruntime08:40:160
17288991714,2cyclictest3707-21lxd07:51:050
17288991714,2cyclictest31757-21apache_accesses08:30:130
17288991714,2cyclictest2716-21/usr/sbin/munin11:25:160
17288991714,2cyclictest26112-21ntp_states12:05:210
17288991714,2cyclictest25881-21apt-get08:20:130
17288991714,2cyclictest22685-21perl12:00:150
17288991714,2cyclictest22123-21ntpq07:15:180
17288991714,2cyclictest2092-21nfsd410:25:190
17288991714,2cyclictest20381-21needreboot11:55:200
17288991714,2cyclictest20348-21/usr/sbin/munin11:00:240
17288991714,2cyclictest18680-21fschecks_time07:10:160
17288991714,2cyclictest17157-21grep11:50:150
17288991714,2cyclictest16600-21cat09:00:160
17288991714,2cyclictest1654-21/usr/sbin/munin12:20:200
17288991714,2cyclictest15959-21apt-config09:55:010
17288991714,2cyclictest15022-21awk11:45:180
17288991714,2cyclictest1442-21chrt11:24:460
17288991714,2cyclictest13666-21grep08:55:140
17288991713,1cyclictest0-21swapper/012:15:140
1728899171,2cyclictest4526-21H212:26:330
1728899171,2cyclictest23485-21cat11:05:140
1728899170,2cyclictest15319-21cat10:50:140
1728899170,2cyclictest0-21swapper/008:15:180
1728899170,16cyclictest9779-21sed08:45:240
1728899170,16cyclictest4762-21sed10:30:190
1728899170,16cyclictest3359-21df07:40:140
1728899170,16cyclictest3329-21cat08:35:170
1728899170,16cyclictest32430-21munin-run10:25:000
1728899170,16cyclictest27792-21awk07:25:200
1728899170,16cyclictest27480-21cron09:24:570
1728899170,16cyclictest20193-21ntpq10:00:200
1728899170,16cyclictest20193-21ntpq10:00:200
1728899170,16cyclictest17888-21cstates08:05:160
1728899170,16cyclictest13514-21/usr/sbin/munin09:50:150
1728899170,16cyclictest13029-21cut07:55:220
17292991614,1cyclictest9434-21apt-get10:40:142
17292991614,1cyclictest25918-21netstat12:05:202
17292991614,1cyclictest0-21swapper/212:20:162
17292991614,1cyclictest0-21swapper/211:15:142
17292991614,1cyclictest0-21swapper/211:00:042
17292991614,1cyclictest0-21swapper/210:00:002
17292991614,1cyclictest0-21swapper/208:50:132
17292991614,1cyclictest0-21swapper/208:00:172
1729299160,2cyclictest25313-21timerwakeupswit07:20:212
1729299160,1cyclictest4474-21apache_volume09:35:132
1729299160,1cyclictest4474-21apache_volume09:35:132
1729299160,1cyclictest30321-21anvil12:15:072
1729299160,1cyclictest0-21swapper/210:25:182
1729299160,1cyclictest0-21swapper/208:39:022
1729299160,16cyclictest0-21swapper/209:33:512
1729299160,15cyclictest6109-21perl08:40:152
1729299160,15cyclictest31847-21cat11:20:142
1729299160,15cyclictest20893-21expr08:10:122
1729299160,15cyclictest16564-21cpuspeed_turbos11:50:142
1729299160,15cyclictest16124-21awk10:50:182
1729299160,15cyclictest0-21swapper/212:35:152
1729299160,15cyclictest0-21swapper/211:55:192
1729299160,15cyclictest0-21swapper/210:30:152
1729299160,15cyclictest0-21swapper/208:15:222
17290991614,1cyclictest5390-21/usr/sbin/munin08:40:151
17290991614,1cyclictest4528-21H212:26:331
17290991614,1cyclictest22395-40apt-check09:10:061
17290991614,1cyclictest0-21swapper/112:35:171
17290991614,1cyclictest0-21swapper/111:20:141
17290991614,1cyclictest0-21swapper/111:10:141
17290991614,1cyclictest0-21swapper/110:10:181
17290991614,1cyclictest0-21swapper/109:30:171
17290991614,1cyclictest0-21swapper/109:15:211
17290991614,1cyclictest0-21swapper/109:00:241
17290991614,1cyclictest0-21swapper/107:40:151
17290991614,1cyclictest0-21swapper/107:18:441
1729099160,1cyclictest16308-21pzem_voltage08:00:211
1729099160,1cyclictest101162chrt08:45:491
1729099160,1cyclictest0-21swapper/110:40:151
1729099160,15cyclictest7130-21expr12:30:141
1729099160,15cyclictest28853-21switchtime10:15:241
1729099160,15cyclictest2566-21fschecks_time11:25:151
1729099160,15cyclictest18465-21if_err_enp1s010:55:161
1729099160,15cyclictest11060-21/usr/sbin/munin11:40:151
1729099160,15cyclictest0-21swapper/112:05:161
1729099160,15cyclictest0-21swapper/112:05:011
1729099160,15cyclictest0-21swapper/111:50:171
1729099160,15cyclictest0-21swapper/110:30:141
1729099160,15cyclictest0-21swapper/107:25:171
1729299150,14cyclictest0-21swapper/208:25:102
1729099150,1cyclictest28320-21acpi09:20:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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