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2025-11-09 - 18:00
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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 Sun Nov 09, 2025 12:45:19)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2783999225,9cyclictest0-21swapper/207:58:132
2783999224,2cyclictest4539-21H212:26:332
2783999220,21cyclictest0-21swapper/211:13:372
2783999220,18cyclictest0-21swapper/209:37:312
27836992218,2cyclictest3350-21master09:38:301
27836992119,1cyclictest21-21ksoftirqd/111:37:121
2783199210,0cyclictest0-21swapper/012:27:540
2783999203,16cyclictest980-21cat12:05:012
2783699204,1cyclictest21-21ksoftirqd/110:16:461
27831992020,0cyclictest0-21swapper/011:55:370
2783199200,0cyclictest0-21swapper/012:10:200
2783999193,15cyclictest4582-21H212:26:332
2783999192,2cyclictest4581-21H212:26:332
2783999192,16cyclictest4582-21H212:26:332
27839991919,0cyclictest0-21swapper/211:08:032
27839991919,0cyclictest0-21swapper/209:20:512
27839991917,1cyclictest0-21swapper/211:20:482
27839991916,2cyclictest3185-21awk09:15:192
27839991915,3cyclictest4594-21H212:26:332
2783999190,19cyclictest0-21swapper/207:26:462
2783999190,16cyclictest4534-21H212:26:332
2783699193,15cyclictest21-21ksoftirqd/108:40:461
2783699192,16cyclictest4527-21H212:26:331
27836991917,1cyclictest21-21ksoftirqd/112:30:021
27836991917,1cyclictest21-21ksoftirqd/112:30:021
27836991916,2cyclictest1328-21latency_hist09:15:001
2783699190,2cyclictest4538-21H212:26:331
2783699190,16cyclictest4530-21H212:26:331
27831991916,2cyclictest4531-21H212:26:330
27831991916,2cyclictest1086-21snmpd08:12:120
2783199190,16cyclictest4528-21H212:26:330
2783999182,15cyclictest9555-21cat08:30:142
27839991818,0cyclictest0-21swapper/210:53:252
27839991816,1cyclictest0-21swapper/207:42:102
27839991815,2cyclictest445-21date08:15:012
27839991815,2cyclictest32625-21latency_hist10:10:012
27839991815,2cyclictest28440-21cpuspeed_turbos11:55:142
27839991815,2cyclictest27826-21cyclictest11:39:002
2783999181,2cyclictest4533-21H212:26:332
2783999181,2cyclictest0-21swapper/208:44:092
2783999181,16cyclictest4581-21H212:26:332
2783999181,16cyclictest1104-21lldpd10:59:542
2783999180,3cyclictest4532-21H212:26:332
2783999180,3cyclictest3245-21apache207:25:012
2783999180,2cyclictest4526-21H212:26:332
2783999180,2cyclictest15471-21sed10:35:012
2783999180,18cyclictest0-21swapper/209:54:252
2783999180,17cyclictest4581-21H212:26:332
2783999180,17cyclictest4581-21H212:26:332
2783999180,17cyclictest4534-21H212:26:332
2783999180,17cyclictest1104-21lldpd11:30:202
2783999180,16cyclictest11073-21nvmesmart_nvme010:25:212
2783999180,0cyclictest0-21swapper/208:22:272
2783699182,16cyclictest1374-21munin-node08:33:401
27836991818,0cyclictest0-21swapper/111:25:561
27836991817,1cyclictest1086-21snmpd09:47:551
27836991816,1cyclictest4581-21H212:26:331
27836991816,1cyclictest0-21swapper/110:02:221
27836991815,2cyclictest5529-21cat07:25:171
27836991815,2cyclictest4539-21H212:26:331
27836991815,2cyclictest3294-21JS12:26:331
27836991815,2cyclictest1086-21snmpd09:05:221
27836991814,3cyclictest454-21plymouthd10:21:341
27836991814,3cyclictest0-21swapper/108:12:081
2783699181,1cyclictest0-21swapper/111:42:421
2783699181,16cyclictest4527-21H212:26:331
2783699181,16cyclictest1104-21lldpd12:21:201
2783699181,16cyclictest1086-21snmpd10:35:031
2783699180,3cyclictest1104-21lldpd11:33:001
2783699180,17cyclictest4528-21H212:26:331
2783699180,16cyclictest4523-21H212:26:331
2783199183,15cyclictest9-21ksoftirqd/008:36:200
2783199182,2cyclictest4581-21H212:26:330
2783199182,2cyclictest1086-21snmpd10:35:010
2783199182,2cyclictest1086-21snmpd09:08:000
2783199182,1cyclictest20101-21switchtime10:40:250
2783199182,15cyclictest1086-21snmpd09:41:490
2783199182,15cyclictest1086-21snmpd09:41:490
27831991818,0cyclictest0-21swapper/008:56:380
27831991816,1cyclictest9-21ksoftirqd/011:03:000
27831991816,1cyclictest9-21ksoftirqd/008:48:460
27831991816,1cyclictest13518-21kworker/0:111:25:310
27831991816,1cyclictest0-21swapper/009:56:310
27831991815,2cyclictest4535-21H212:26:330
2783199181,16cyclictest1086-21snmpd11:45:220
2783199181,16cyclictest0-21swapper/008:01:440
2783199180,2cyclictest4536-21H212:26:330
2783199180,2cyclictest4528-21H212:26:330
2783199180,2cyclictest4528-21H212:26:330
2783199180,2cyclictest4523-21H212:26:330
2783199180,2cyclictest4523-21H212:26:330
2783199180,2cyclictest4523-21H212:26:330
2783199180,17cyclictest4532-21H212:26:330
2783199180,0cyclictest0-21swapper/010:12:370
2783999172,1cyclictest28-21ksoftirqd/209:29:122
27839991715,1cyclictest0-21swapper/211:45:012
27839991715,1cyclictest0-21swapper/207:46:532
27839991714,2cyclictest7537-21cpuspeed_turbos07:30:142
27839991714,2cyclictest4537-21H212:26:332
27839991714,2cyclictest4537-21H212:26:332
27839991714,2cyclictest4526-21H212:26:332
27839991714,2cyclictest24952-21expr09:55:152
27839991714,2cyclictest19524-21chrt08:46:172
27839991714,2cyclictest10104-21/usr/sbin/munin12:20:182
27839991714,2cyclictest0-21swapper/212:25:202
27839991714,2cyclictest0-21swapper/210:33:052
27839991713,3cyclictest4538-21H212:26:332
2783999171,15cyclictest4534-21H212:26:332
2783999170,3cyclictest454-21plymouthd08:00:222
2783999170,2cyclictest6435-21apt-get08:25:152
2783999170,2cyclictest4528-21H212:26:332
2783999170,2cyclictest4526-21H212:26:332
2783999170,16cyclictest663-21grep10:10:142
2783999170,16cyclictest4581-21H212:26:332
2783999170,16cyclictest4537-21H212:26:332
2783999170,16cyclictest32472-21cat09:10:172
2783999170,16cyclictest31009-21tr07:15:132
2783999170,16cyclictest26208-21expr09:00:152
2783999170,16cyclictest23722-21ls08:55:152
2783999170,16cyclictest11261-21sed07:35:182
2783999170,16cyclictest1104-21lldpd08:52:282
2783999170,16cyclictest0-21swapper/209:08:072
27836991715,1cyclictest3706-21cpuspeed_turbos08:20:141
27836991715,1cyclictest1104-21lldpd08:55:131
27836991715,1cyclictest0-21swapper/112:12:221
27836991715,1cyclictest0-21swapper/109:32:191
27836991714,2cyclictest6275-21taskset09:20:201
27836991714,2cyclictest4528-21H212:26:331
27836991714,2cyclictest4528-21H212:26:331
27836991714,2cyclictest3692-21master09:50:481
27836991714,2cyclictest21842-21cupsd12:00:321
27836991714,2cyclictest19807-21ntpq10:40:201
27836991714,2cyclictest13121-21dpkg07:40:151
27836991714,2cyclictest1104-21lldpd08:00:181
27836991714,2cyclictest1104-21lldpd07:22:231
2783699170,2cyclictest90332chrt09:25:171
2783699170,2cyclictest4530-21H212:26:331
2783699170,2cyclictest4530-21H212:26:331
2783699170,2cyclictest4530-21H212:26:331
2783699170,2cyclictest4523-21H212:26:331
2783699170,2cyclictest31695-21sed10:05:221
2783699170,2cyclictest12581-21cpuspeed_turbos10:30:141
2783699170,2cyclictest11408-21awk07:35:191
2783699170,16cyclictest995-21irqbalance07:34:221
2783699170,16cyclictest4536-21H212:26:331
2783699170,16cyclictest4536-21H212:26:331
2783699170,16cyclictest4528-21H212:26:331
2783699170,16cyclictest4526-21H212:26:331
2783699170,16cyclictest4526-21H212:26:331
2783699170,16cyclictest4523-21H212:26:331
2783699170,16cyclictest3241-21apache_processe11:10:121
2783699170,16cyclictest29526-21cut11:55:191
2783699170,16cyclictest25186-21tune2fs09:55:161
2783699170,16cyclictest23991-21nfsd411:45:191
2783699170,16cyclictest1893-21grep08:15:191
2783699170,16cyclictest10359-21tune2fs10:25:161
2783199172,1cyclictest0-21swapper/010:56:290
2783199172,1cyclictest0-21swapper/010:51:520
2783199172,1cyclictest0-21swapper/009:12:520
27831991716,1cyclictest9-21ksoftirqd/010:25:360
27831991715,1cyclictest4537-21H212:26:330
27831991715,1cyclictest4375-21kworker/0:207:45:070
27831991715,1cyclictest0-21swapper/011:50:210
27831991715,1cyclictest0-21swapper/007:55:110
27831991714,2cyclictest4538-21H212:26:330
27831991714,2cyclictest4529-21H212:26:330
27831991714,2cyclictest4527-21H212:26:330
27831991714,2cyclictest20029-21/usr/sbin/munin11:40:160
27831991714,2cyclictest1086-21snmpd10:35:010
27831991714,2cyclictest1086-21snmpd08:34:570
27831991714,2cyclictest1086-21snmpd07:25:150
27831991713,3cyclictest4532-21H212:26:330
27831991713,3cyclictest1104-21lldpd09:20:040
2783199171,2cyclictest1086-21snmpd08:40:420
2783199171,15cyclictest1086-21snmpd12:16:480
2783199171,15cyclictest1086-21snmpd07:50:030
2783199171,15cyclictest0-21swapper/009:25:090
2783199171,15cyclictest0-21swapper/008:05:060
2783199171,15cyclictest0-21swapper/008:05:060
2783199170,2cyclictest4593-21H212:26:330
2783199170,2cyclictest4593-21H212:26:330
2783199170,2cyclictest4526-21H212:26:330
2783199170,2cyclictest20241-21apache_volume08:50:120
2783199170,2cyclictest1104-21lldpd09:49:480
2783199170,16cyclictest4581-21H212:26:330
2783199170,16cyclictest4534-21H212:26:330
2783199170,16cyclictest4532-21H212:26:330
2783199170,16cyclictest4523-21H212:26:330
2783199170,16cyclictest4168-21updatedb.mlocat07:25:010
2783199170,16cyclictest30880-21apache_accesses07:15:100
2783199170,16cyclictest11767-21/usr/sbin/munin09:30:180
2783199170,16cyclictest1104-21lldpd11:35:220
2783199170,16cyclictest1104-21lldpd08:17:220
27839991614,1cyclictest0-21swapper/211:42:092
2783999160,15cyclictest0-21swapper/212:05:102
2783999160,15cyclictest0-21swapper/212:05:102
2783999160,15cyclictest0-21swapper/208:05:152
2783999160,15cyclictest0-21swapper/208:05:152
27836991614,1cyclictest0-21swapper/110:10:081
27836991614,1cyclictest0-21swapper/107:10:221
27836991613,2cyclictest32517-21apache_volume11:05:151
27836991613,2cyclictest24290-21apt10:50:111
2783699160,1cyclictest0-21swapper/108:50:141
2783199160,15cyclictest1086-21snmpd09:50:060
2783199160,15cyclictest0-21swapper/007:35:080
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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