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2025-11-18 - 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 Tue Nov 18, 2025 12:45:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1763899260,5cyclictest0-21swapper/209:30:212
17636992423,1cyclictest1042-21mii-tool10:25:171
17638992322,1cyclictest28-21ksoftirqd/209:09:582
17638992319,3cyclictest28-21ksoftirqd/207:12:492
17638992316,3cyclictest0-21swapper/210:09:102
1763899230,22cyclictest823-21systemd-network08:16:542
1763899230,18cyclictest26306-21updatedb.mlocat07:25:002
1763899230,18cyclictest0-21swapper/212:13:082
1763599230,4cyclictest0-21swapper/010:00:200
1763899222,19cyclictest0-21swapper/211:23:352
1763899222,16cyclictest3254-21smartctl08:35:212
17638992217,2cyclictest796-21grep07:35:192
17638992216,5cyclictest26664-21apt-key10:15:012
17638992214,7cyclictest5182-21seq07:44:072
1763899221,2cyclictest15144-21chrt11:49:412
1763899220,3cyclictest0-21swapper/211:06:452
1763899220,1cyclictest0-21swapper/210:55:152
1763899220,17cyclictest0-21swapper/210:40:182
1763899220,16cyclictest27841-21latency_hist11:15:002
1763899220,16cyclictest24737-21tr12:05:182
1763899220,16cyclictest19169-21seq08:07:462
1763899220,16cyclictest0-21swapper/210:48:272
1763899220,15cyclictest20930-21latency08:10:192
17635992222,0cyclictest0-21swapper/010:05:180
1763599220,4cyclictest0-21swapper/011:20:190
1763599220,18cyclictest0-21swapper/010:33:350
1763899212,18cyclictest0-21swapper/209:18:282
17638992113,7cyclictest29390-21/usr/sbin/munin07:30:142
1763899210,2cyclictest3441-21gsd-color12:15:162
1763899210,2cyclictest2237-21vmstat10:25:232
1763899210,2cyclictest15787-21grep11:50:162
1763899210,20cyclictest5693-21expr09:35:222
1763899210,20cyclictest30214-21ls10:20:142
1763899210,1cyclictest0-21swapper/212:30:222
1763899210,1cyclictest0-21swapper/208:45:232
1763899210,19cyclictest0-21swapper/210:15:192
1763899210,16cyclictest5758-21chrt10:35:012
1763899210,15cyclictest20596-21fschecks_time11:00:162
1763899210,15cyclictest13734-21latency09:50:172
1763899210,15cyclictest0-21swapper/210:00:242
17636992114,3cyclictest0-21swapper/111:05:011
17636992114,3cyclictest0-21swapper/107:39:321
17636992112,0cyclictest0-21swapper/108:45:181
1763599213,3cyclictest10008-21systemctl07:50:220
17638992014,5cyclictest6390-21cat12:30:002
17638992014,5cyclictest32116-21sed09:25:182
17638992014,5cyclictest0-21swapper/211:30:192
17638992014,5cyclictest0-21swapper/208:25:032
17638992014,5cyclictest0-21swapper/208:20:222
17638992013,6cyclictest3441-21gsd-color12:00:532
1763899200,1cyclictest0-21swapper/212:38:592
1763899200,1cyclictest0-21swapper/209:55:142
1763899200,19cyclictest0-21swapper/212:20:012
1763899200,19cyclictest0-21swapper/211:15:182
1763899200,19cyclictest0-21swapper/209:21:422
1763899200,19cyclictest0-21swapper/208:50:262
1763899200,16cyclictest1086-21snmpd08:00:172
1763899200,15cyclictest4530-21H212:26:332
1763699205,1cyclictest0-21swapper/108:55:191
17636992018,1cyclictest0-21swapper/109:35:531
1763699200,19cyclictest2079-21systemd-udevd08:03:071
1763599208,11cyclictest0-21swapper/009:30:560
1763599203,2cyclictest26795-21cpuspeed_turbos07:25:150
17635992016,3cyclictest0-21swapper/012:27:560
1763599200,19cyclictest893-21systemd-logind11:32:070
17638991914,5cyclictest0-21swapper/211:35:222
17638991914,4cyclictest1634-21grep11:25:162
17638991913,5cyclictest22908-21df09:10:162
17638991913,5cyclictest10933-21if_err_lxdbr009:45:182
17638991913,5cyclictest0-21swapper/209:00:152
17638991913,5cyclictest0-21swapper/209:00:152
1763899190,1cyclictest0-21swapper/210:50:212
1763899190,18cyclictest0-21swapper/210:40:002
1763899190,18cyclictest0-21swapper/207:45:142
1763899190,18cyclictest0-21swapper/207:15:272
1763899190,18cyclictest0-21swapper/207:15:272
1763899190,17cyclictest0-21swapper/207:25:152
1763899190,0cyclictest0-21swapper/211:55:132
1763899190,0cyclictest0-21swapper/207:54:552
1763699193,15cyclictest31969-21sshd12:15:541
1763699193,15cyclictest21-21ksoftirqd/107:32:381
1763699192,15cyclictest0-21swapper/111:06:201
17636991917,1cyclictest4536-21H212:26:331
17636991917,1cyclictest4536-21H212:26:331
17636991917,1cyclictest0-21swapper/111:30:151
17636991917,1cyclictest0-21swapper/108:40:591
17636991916,2cyclictest24074-21cstates12:05:151
17636991916,2cyclictest18251-21date11:55:011
17636991916,2cyclictest12820-21date11:45:011
17636991916,1cyclictest0-21swapper/108:05:201
17636991915,3cyclictest0-21swapper/107:58:301
1763699190,16cyclictest4523-21H212:26:331
1763599197,11cyclictest0-21swapper/009:35:560
1763599192,3cyclictest0-21swapper/011:19:000
1763599192,2cyclictest12152-21grep08:50:200
17635991917,1cyclictest0-21swapper/010:52:490
17635991916,2cyclictest6615-21expr10:35:160
17635991915,3cyclictest30106-21grep10:20:140
1763599191,17cyclictest0-21swapper/009:08:050
1763599190,3cyclictest17706-21sort08:05:180
1763599190,3cyclictest0-21swapper/008:29:120
1763599190,2cyclictest4528-21H212:26:330
1763599190,2cyclictest4528-21H212:26:330
1763599190,1cyclictest0-21swapper/008:40:180
17638991814,3cyclictest0-21swapper/208:56:332
17638991813,4cyclictest4526-21H212:26:332
17638991813,4cyclictest0-21swapper/208:40:152
17638991810,7cyclictest32707-21ntpq08:30:202
1763899180,17cyclictest0-21swapper/207:55:202
1763699182,1cyclictest10045-21fschecks_count12:35:191
1763699182,15cyclictest23533-21nfsd409:10:191
1763699182,15cyclictest0-21swapper/112:28:371
1763699182,15cyclictest0-21swapper/108:25:451
17636991818,0cyclictest0-21swapper/110:20:161
17636991816,1cyclictest25753-21expr09:15:151
17636991816,1cyclictest21-21ksoftirqd/111:23:221
17636991816,1cyclictest0-21swapper/112:00:181
17636991816,1cyclictest0-21swapper/109:55:141
17636991814,3cyclictest4536-21H212:26:331
17636991814,3cyclictest29321-21sort09:20:181
17636991814,3cyclictest0-21swapper/110:10:151
1763699181,2cyclictest0-21swapper/110:30:231
17636991812,3cyclictest0-21swapper/110:50:021
1763699181,16cyclictest28242-21/usr/sbin/munin11:15:171
1763699180,3cyclictest9626-21cron09:45:001
1763699180,2cyclictest4538-21H212:26:331
1763699180,2cyclictest4523-21H212:26:331
1763699180,17cyclictest454-21plymouthd12:35:001
1763699180,17cyclictest4534-21H212:26:331
1763699180,17cyclictest18654-21tune2fs07:10:191
1763699180,17cyclictest10613-21cstates09:45:161
1763599183,1cyclictest24642-21idleruntime10:10:170
1763599182,1cyclictest2841-21cat12:20:230
1763599182,15cyclictest3342-21df07:40:130
17635991816,1cyclictest0-21swapper/011:45:400
17635991816,1cyclictest0-21swapper/011:25:090
17635991816,1cyclictest0-21swapper/008:39:340
17635991815,2cyclictest25190-21ntp_kernel_pll_12:05:200
17635991815,2cyclictest11162-21grep07:55:140
17635991814,3cyclictest1411-21lxd08:15:030
17635991814,3cyclictest0-21swapper/008:00:160
1763599181,2cyclictest29468-21expr09:20:190
1763599180,2cyclictest4536-21H212:26:330
1763599180,1cyclictest0-21swapper/007:20:110
1763599180,17cyclictest0-21swapper/012:35:220
1763599180,15cyclictest0-21swapper/010:45:160
1763699172,1cyclictest0-21swapper/108:30:151
17636991714,2cyclictest9374-21expr10:40:171
17636991714,2cyclictest6603-21cat10:35:161
17636991714,2cyclictest5670-21/usr/sbin/munin07:45:161
17636991714,2cyclictest4526-21H212:26:331
17636991714,2cyclictest28035-21cat12:10:161
17636991714,2cyclictest28032-21ps07:25:201
17636991714,2cyclictest23037-21perf07:20:011
17636991714,2cyclictest23037-21perf07:20:011
17636991714,2cyclictest22665-21apache_accesses08:15:141
17636991714,2cyclictest20851-21/usr/sbin/munin08:10:191
17636991714,2cyclictest2013-21expr08:35:161
17636991714,2cyclictest1757-21if_lxdbr012:20:181
17636991714,2cyclictest16559-21cstates09:00:151
17636991714,2cyclictest16559-21cstates09:00:151
17636991714,2cyclictest13132-21cstates09:50:141
1763699170,2cyclictest21684-21fschecks_time10:05:171
1763699170,2cyclictest19388-21expr09:05:161
1763699170,16cyclictest8634-21smartctl11:35:201
1763699170,16cyclictest30935-21/usr/sbin/munin09:25:141
1763699170,16cyclictest2736-21grep07:40:131
1763699170,16cyclictest26936-21tar10:15:011
1763699170,16cyclictest23805-21cstates07:20:141
1763699170,16cyclictest18836-21cstates10:00:161
1763699170,16cyclictest11913-21cpuspeed_turbos10:45:161
1763699170,16cyclictest10909-21grep08:50:161
17635991714,2cyclictest4526-21H212:26:330
17635991714,2cyclictest31166-21cpuspeed_turbos09:25:140
17635991714,2cyclictest14776-21expr08:55:210
17635991714,2cyclictest10062-21apache_volume09:45:140
17635991714,1cyclictest0-21swapper/008:45:150
17635991713,3cyclictest23408-21perf12:05:000
1763599170,2cyclictest8608-21grep11:35:190
1763599170,2cyclictest7048-21/usr/sbin/munin07:45:180
1763599170,2cyclictest4536-21H212:26:330
1763599170,2cyclictest30620-21awk07:30:180
1763599170,2cyclictest26487-21ls08:20:180
1763599170,2cyclictest25238-21gpgv09:15:020
1763599170,2cyclictest20326-21expr11:00:150
1763599170,2cyclictest18613-21fschecks_time07:10:190
1763599170,2cyclictest18056-21cat09:00:230
1763599170,2cyclictest18056-21cat09:00:230
1763599170,2cyclictest17918-21idleruntime10:55:160
1763599170,2cyclictest16959-21/usr/sbin/munin09:55:200
1763599170,2cyclictest11415-21cut11:40:190
1763599170,1cyclictest0-21swapper/007:35:490
1763599170,16cyclictest6656-21acpi12:30:150
1763599170,16cyclictest30395-21expr12:15:150
1763599170,16cyclictest27472-21expr10:15:160
1763599170,16cyclictest26936-21/usr/sbin/munin11:10:190
1763599170,16cyclictest24339-21taskset09:11:210
1763599170,16cyclictest22642-21apache_accesses11:05:150
1763599170,16cyclictest22076-21chrt08:12:590
1763599170,16cyclictest19668-21expr11:55:180
1763599170,16cyclictest10875-21cat10:40:250
17635991614,1cyclictest0-21swapper/009:40:150
1763599160,15cyclictest31405-21cpuspeed_turbos08:30:150
1763599160,15cyclictest13052-21cstates09:50:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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