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2025-11-15 - 23:16
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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 100 highest latencies:
System rackdslot0.osadl.org (updated Sat Nov 15, 2025 12:45:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1395499220,18cyclictest0-21swapper/208:49:452
13949992214,4cyclictest0-21swapper/008:49:260
1394999220,6cyclictest0-21swapper/008:50:550
1395099212,3cyclictest0-21swapper/108:45:041
1395499204,15cyclictest0-21swapper/210:50:462
13950992017,2cyclictest4526-21H212:26:331
1395499192,9cyclictest0-21swapper/211:44:172
1395499192,16cyclictest29770-21chrt11:20:382
1395499192,16cyclictest0-21swapper/209:26:132
13954991916,2cyclictest8383-21processes10:45:212
13954991915,1cyclictest0-21swapper/209:45:142
13954991914,3cyclictest21709-21ps09:15:402
1395499190,2cyclictest4532-21H212:26:332
1395499190,1cyclictest0-21swapper/208:21:252
1395499190,17cyclictest4582-21H212:26:332
1395499190,17cyclictest4538-21H212:26:332
1395099193,15cyclictest21-21ksoftirqd/111:25:011
13950991917,1cyclictest0-21swapper/111:01:281
13950991917,1cyclictest0-21swapper/110:55:201
13950991914,2cyclictest4593-21H212:26:331
13950991914,1cyclictest0-21swapper/111:11:521
1395099190,2cyclictest4581-21H212:26:331
1395099190,18cyclictest0-21swapper/107:16:531
1395099190,16cyclictest4538-21H212:26:331
13949991917,1cyclictest0-21swapper/011:28:170
13949991916,2cyclictest4536-21H212:26:330
1394999190,18cyclictest823-21systemd-network11:03:090
1394999190,16cyclictest4532-21H212:26:330
13954991816,1cyclictest28-21ksoftirqd/210:18:352
13954991816,1cyclictest0-21swapper/211:55:582
13954991816,1cyclictest0-21swapper/209:44:582
13954991816,1cyclictest0-21swapper/209:05:202
13954991815,2cyclictest4307-21munin-plugin-st07:50:022
13954991815,2cyclictest15199-21phpquery08:09:002
1395499181,2cyclictest5479-21ps11:35:282
1395499180,2cyclictest4526-21H212:26:332
1395499180,2cyclictest4526-21H212:26:332
1395499180,17cyclictest4532-21H212:26:332
1395499180,17cyclictest4530-21H212:26:332
1395499180,17cyclictest4530-21H212:26:332
1395499180,17cyclictest4523-21H212:26:332
1395499180,17cyclictest18364-21ls10:10:002
1395499180,16cyclictest4526-21H212:26:332
1395099182,15cyclictest4523-21H212:26:331
1395099182,15cyclictest2792-21iscsid11:08:021
13950991816,1cyclictest31958-21tr07:40:171
13950991815,2cyclictest8132-21cut11:40:181
13950991814,3cyclictest4528-21H212:26:331
13950991814,3cyclictest3037-21postgres11:17:061
13950991814,3cyclictest22464-21systemctl07:25:011
13950991814,2cyclictest1404-21lxd09:31:031
1395099181,16cyclictest8202-21sed12:40:011
1395099180,1cyclictest4581-21H212:26:331
1395099180,17cyclictest20958-21cat10:14:551
1395099180,16cyclictest4536-21H212:26:331
1395099180,16cyclictest4528-21H212:26:331
1395099180,15cyclictest4536-21H212:26:331
13949991816,1cyclictest9-21ksoftirqd/010:15:380
13949991816,1cyclictest9-21ksoftirqd/010:15:010
1394999180,2cyclictest4538-21H212:26:330
1394999180,2cyclictest4538-21H212:26:330
1394999180,2cyclictest4526-21H212:26:330
1394999180,17cyclictest0-21swapper/007:25:210
1394999180,15cyclictest4530-21H212:26:330
1394999180,15cyclictest12935-21cpuspeed_turbos10:55:150
13954991717,0cyclictest0-21swapper/212:01:512
13954991717,0cyclictest0-21swapper/208:17:562
13954991715,1cyclictest0-21swapper/207:10:152
13954991714,2cyclictest8223-21http_loadtime07:55:162
13954991714,2cyclictest4581-21H212:26:332
13954991714,2cyclictest4532-21H212:26:332
13954991714,2cyclictest4532-21H212:26:332
13954991714,2cyclictest4523-21H212:26:332
13954991714,2cyclictest3223-21expr12:30:172
13954991714,2cyclictest30226-21https10:30:012
13954991714,2cyclictest2857-21sed10:35:252
13954991714,2cyclictest25027-21/usr/sbin/munin11:15:192
13954991714,2cyclictest23390-21ls07:25:162
13954991714,2cyclictest23282-21expr09:20:152
13954991713,3cyclictest4530-21H212:26:332
13954991713,3cyclictest4526-21H212:26:332
1395499171,15cyclictest27912-21nfsd412:15:192
1395499170,2cyclictest4593-21H212:26:332
1395499170,2cyclictest4538-21H212:26:332
1395499170,2cyclictest4538-21H212:26:332
1395499170,2cyclictest4530-21H212:26:332
1395499170,2cyclictest31429-21cpuspeed_turbos09:35:152
1395499170,2cyclictest1059-21cups-browsed08:10:012
1395499170,16cyclictest4526-21H212:26:332
1395499170,16cyclictest30088-21grep08:35:142
1395499170,16cyclictest28279-21/usr/sbin/munin07:35:162
1395499170,16cyclictest27970-21fschecks_time08:30:162
1395499170,16cyclictest27693-21cat10:25:162
1395499170,16cyclictest18021-21expr09:10:142
1395499170,16cyclictest16150-21cat11:00:172
1395499170,16cyclictest0-21swapper/208:30:022
13950991716,0cyclictest0-21swapper/109:15:391
13950991715,1cyclictest170772sleep111:55:381
13950991715,1cyclictest1616-21/usr/sbin/munin07:45:151
13950991714,2cyclictest4581-21H212:26:331
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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