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2025-11-17 - 22:45
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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 Mon Nov 17, 2025 12:45:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
18231992625,0cyclictest0-21swapper/109:45:171
1823299237,14cyclictest0-21swapper/208:23:332
18232992322,0cyclictest0-21swapper/210:59:442
1823099230,5cyclictest0-21swapper/009:07:520
18232992117,1cyclictest0-21swapper/212:25:142
18231992115,3cyclictest21924-21fschecks_time07:15:151
1823199210,17cyclictest0-21swapper/108:30:141
1823299204,15cyclictest0-21swapper/207:47:202
1823299202,15cyclictest0-21swapper/208:50:152
18232992020,0cyclictest21403-21mii-tool08:10:182
18232992020,0cyclictest21403-21mii-tool08:10:182
1823299200,17cyclictest4526-21H212:26:332
1823199203,16cyclictest4526-21H212:26:331
1823199200,20cyclictest0-21swapper/110:50:181
1823299192,16cyclictest0-21swapper/207:20:182
18232991917,1cyclictest0-21swapper/211:22:182
1823299190,5cyclictest0-21swapper/210:10:092
1823299190,2cyclictest4532-21H212:26:332
1823299190,18cyclictest0-21swapper/209:48:072
1823299190,16cyclictest4538-21H212:26:332
1823299190,16cyclictest4530-21H212:26:332
1823199194,11cyclictest0-21swapper/111:05:001
1823199192,2cyclictest29265-21readlink11:15:231
1823199192,1cyclictest0-21swapper/110:55:011
18231991917,1cyclictest0-21swapper/112:27:201
18231991915,3cyclictest31126-21turbostat.cron08:30:001
1823199190,4cyclictest0-21swapper/110:16:571
1823199190,16cyclictest4581-21H212:26:331
1823199190,16cyclictest4528-21H212:26:331
18230991917,1cyclictest12394-21expr08:50:220
1823099190,2cyclictest4530-21H212:26:330
1823099190,16cyclictest4532-21H212:26:330
1823099190,16cyclictest4530-21H212:26:330
1823299182,15cyclictest32256-21expr12:20:152
1823299182,15cyclictest28-21ksoftirqd/209:33:302
18232991816,1cyclictest28-21ksoftirqd/211:58:242
18232991816,1cyclictest14934-21/usr/sbin/munin09:55:202
18232991816,1cyclictest14934-21/usr/sbin/munin09:55:202
18232991816,1cyclictest0-21swapper/211:35:152
18232991814,3cyclictest4581-21H212:26:332
18232991814,2cyclictest4534-21H212:26:332
1823299180,4cyclictest0-21swapper/207:30:302
1823299180,3cyclictest22715-21cron10:09:002
1823299180,2cyclictest4534-21H212:26:332
1823299180,2cyclictest4528-21H212:26:332
1823299180,2cyclictest0-21swapper/207:12:452
1823299180,17cyclictest13626-21cpuspeed_turbos08:55:142
1823299180,16cyclictest4530-21H212:26:332
1823299180,15cyclictest0-21swapper/208:40:212
18231991816,1cyclictest4528-21H212:26:331
18231991816,1cyclictest27753-21nfsd412:10:191
18231991816,1cyclictest0-21swapper/110:22:491
18231991815,2cyclictest4797-21nfsd407:40:221
18231991814,3cyclictest22899-21python312:05:011
1823199181,16cyclictest4536-21H212:26:331
18231991811,6cyclictest16247-21nfsd409:55:221
18231991811,6cyclictest16247-21nfsd409:55:211
1823199180,2cyclictest4581-21H212:26:331
1823199180,2cyclictest4581-21H212:26:331
1823199180,2cyclictest4536-21H212:26:331
1823199180,2cyclictest4532-21H212:26:331
1823199180,17cyclictest4593-21H212:26:331
1823199180,17cyclictest4593-21H212:26:331
1823199180,17cyclictest4593-21H212:26:331
1823199180,17cyclictest4534-21H212:26:331
1823199180,17cyclictest1079-21gdbus11:35:211
1823199180,17cyclictest0-21swapper/111:22:491
1823099183,1cyclictest0-21swapper/008:44:140
1823099182,15cyclictest0-21swapper/011:15:160
1823099182,15cyclictest0-21swapper/010:42:270
1823099182,15cyclictest0-21swapper/007:35:490
18230991816,1cyclictest0-21swapper/011:22:270
18230991816,1cyclictest0-21swapper/008:48:100
18230991815,2cyclictest4530-21H212:26:330
18230991815,2cyclictest0-21swapper/010:30:230
18230991814,3cyclictest4536-21H212:26:330
1823099181,16cyclictest30008-21snapd09:59:190
1823099181,16cyclictest30008-21snapd09:59:190
1823099181,16cyclictest2133-21cut08:35:160
1823099181,16cyclictest17771-21grep11:55:140
1823099180,2cyclictest4593-21H212:26:330
1823099180,2cyclictest4581-21H212:26:330
1823099180,17cyclictest1603-21lxd11:40:470
1823099180,15cyclictest4581-21H212:26:330
1823099180,15cyclictest4538-21H212:26:330
1823099180,15cyclictest4534-21H212:26:330
1823099180,15cyclictest4523-21H212:26:330
18232991714,2cyclictest4593-21H212:26:332
18232991714,2cyclictest4538-21H212:26:332
18232991714,2cyclictest4526-21H212:26:332
18232991714,2cyclictest32531-21latency08:30:192
18232991714,2cyclictest25290-21cat11:10:142
18232991714,2cyclictest22607-21expr11:05:162
18232991714,2cyclictest21386-21if_lxdbr012:00:182
18232991713,3cyclictest4593-21H212:26:332
18232991713,3cyclictest4532-21H212:26:332
1823299171,15cyclictest28-21ksoftirqd/211:25:072
1823299170,2cyclictest9584-21sed08:45:242
1823299170,2cyclictest5181-21awk11:30:192
1823299170,2cyclictest4593-21H212:26:332
1823299170,2cyclictest4581-21H212:26:332
1823299170,2cyclictest4538-21H212:26:332
1823299170,2cyclictest4536-21H212:26:332
1823299170,2cyclictest4536-21H212:26:332
1823299170,2cyclictest28004-21wc12:10:222
1823299170,16cyclictest4532-21H212:26:332
1823299170,16cyclictest31529-21/usr/sbin/munin10:25:132
1823299170,16cyclictest30295-21processes10:20:222
1823299170,16cyclictest29244-21/usr/sbin/munin12:15:132
1823299170,16cyclictest29106-21nvmesmart_nvme011:15:222
1823299170,16cyclictest2642-21phpquery07:39:012
1823299170,16cyclictest15010-21/usr/sbin/munin11:50:162
1823299170,16cyclictest14641-21sort09:55:012
1823299170,16cyclictest14026-21sed11:45:222
1823299170,16cyclictest12013-21cstates07:55:172
1823299170,16cyclictest0-21swapper/209:21:112
1823299170,15cyclictest4530-21H212:26:332
18231991715,1cyclictest0-21swapper/107:25:241
18231991714,2cyclictest9134-21nfsd410:40:181
18231991714,2cyclictest8231-21apache_accesses12:35:161
18231991714,2cyclictest4538-21H212:26:331
18231991714,2cyclictest4536-21H212:26:331
18231991714,2cyclictest4536-21H212:26:331
18231991714,2cyclictest4523-21H212:26:331
18231991714,2cyclictest30818-21sed07:30:191
18231991714,2cyclictest30677-21cstates09:25:151
18231991714,2cyclictest28562-21kernelversion09:20:201
18231991714,2cyclictest2855-21sendmail07:40:001
18231991714,2cyclictest19591-21cstates09:05:161
18231991714,2cyclictest11948-21grep10:45:201
18231991714,2cyclictest1086-21snmpd08:58:231
18231991713,3cyclictest0-21swapper/110:09:291
1823199171,15cyclictest30539-21grep12:15:201
1823199170,2cyclictest8817-21/usr/sbin/munin08:45:181
1823199170,2cyclictest4528-21H212:26:331
1823199170,2cyclictest3441-21gsd-color11:05:221
1823199170,2cyclictest3066-21systemd-logind10:33:071
1823199170,2cyclictest10408-21grep07:50:201
1823199170,2cyclictest10068-21cat11:40:151
1823199170,1cyclictest0-21swapper/108:15:111
1823199170,16cyclictest5063-21netstat09:35:201
1823199170,16cyclictest4593-21H212:26:331
1823199170,16cyclictest4593-21H212:26:331
1823199170,16cyclictest4538-21H212:26:331
1823199170,16cyclictest4536-21H212:26:331
1823199170,16cyclictest4530-21H212:26:331
1823199170,16cyclictest4523-21H212:26:331
1823199170,16cyclictest26892-21if_enp1s008:20:181
1823199170,16cyclictest23327-21apt-get10:10:161
1823199170,16cyclictest12713-21expr11:45:161
18230991716,1cyclictest30053-21snapd10:51:240
18230991714,2cyclictest5664-21/usr/sbin/munin11:30:240
18230991714,2cyclictest4593-21H212:26:330
18230991714,2cyclictest4538-21H212:26:330
18230991714,2cyclictest4534-21H212:26:330
18230991714,2cyclictest4530-21H212:26:330
18230991714,2cyclictest4530-21H212:26:330
18230991714,2cyclictest4526-21H212:26:330
18230991714,2cyclictest4523-21H212:26:330
18230991714,2cyclictest4523-21H212:26:330
18230991714,2cyclictest28942-21nfsd409:20:230
18230991714,2cyclictest24202-21awk10:10:210
18230991714,2cyclictest1299-21lxd11:05:020
18230991713,3cyclictest0-21swapper/007:12:540
1823099171,15cyclictest4532-21H212:26:330
1823099171,15cyclictest4532-21H212:26:330
1823099170,2cyclictest995-21irqbalance07:16:320
1823099170,2cyclictest7086-21cstates09:40:160
1823099170,2cyclictest4581-21H212:26:330
1823099170,2cyclictest4536-21H212:26:330
1823099170,2cyclictest4534-21H212:26:330
1823099170,2cyclictest14602-21cron11:54:560
1823099170,2cyclictest13530-21nfsd409:50:190
1823099170,1cyclictest4536-21H212:26:330
1823099170,1cyclictest0-21swapper/008:07:380
1823099170,16cyclictest4536-21H212:26:330
1823099170,16cyclictest4534-21H212:26:330
1823099170,16cyclictest4534-21H212:26:330
1823099170,16cyclictest4534-21H212:26:330
1823099170,16cyclictest4530-21H212:26:330
1823099170,16cyclictest4526-21H212:26:330
1823099170,16cyclictest3831-21cstates07:40:170
1823099170,16cyclictest30025-21snapd07:49:040
1823099170,16cyclictest29207-21expr08:25:160
1823099170,16cyclictest27522-21expr07:25:170
1823099170,16cyclictest22666-21expr09:10:150
1823099170,16cyclictest10339-21grep07:50:190
1823099170,16cyclictest0-21swapper/012:30:190
1823099170,16cyclictest0-21swapper/009:25:190
1823099170,15cyclictest4538-21H212:26:330
18232991614,1cyclictest0-21swapper/210:35:162
18232991614,1cyclictest0-21swapper/209:15:152
18232991614,1cyclictest0-21swapper/208:35:062
1823299160,1cyclictest21494-21munin-run11:05:012
1823299160,15cyclictest4534-21H212:26:332
1823299160,15cyclictest4534-21H212:26:332
1823299160,15cyclictest0-21swapper/207:15:152
18231991613,2cyclictest4530-21H212:26:331
1823199160,15cyclictest18777-21expr07:10:141
1823199160,15cyclictest15209-21fschecks_time08:00:171
18230991614,1cyclictest2458-21apt-get12:25:130
18230991614,1cyclictest0-21swapper/011:35:220
1823099160,15cyclictest4526-21H212:26:330
1823099160,15cyclictest0-21swapper/010:20:190
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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