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2026-07-15 - 14:33
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack5slot2.osadl.org (updated Wed Jul 15, 2026 12:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
234812205190,11sleep10-21swapper/107:09:161
235222195181,10sleep00-21swapper/007:09:470
233392189156,28sleep30-21swapper/307:07:303
23467211798,14sleep20-21swapper/207:09:052
67912480,0sleep10-21swapper/112:00:131
125732460,0sleep20-21swapper/210:25:382
194162440,0sleep10-21swapper/110:29:521
159702440,0sleep30-21swapper/309:55:203
310442420,0sleep10-21swapper/110:03:101
237159971,3cyclictest9563-21munin-run10:25:010
237299960,5cyclictest2071-21/usr/sbin/munin07:30:173
237249960,5cyclictest9738-21df_inode11:45:142
237159961,5cyclictest26308-21kworker/0:111:35:140
237159960,6cyclictest0-21swapper/009:14:390
237299955,0cyclictest18572-21kworker/3:212:07:243
237299952,3cyclictest0-21swapper/312:04:223
237299950,5cyclictest0-21swapper/311:31:483
237299950,5cyclictest0-21swapper/309:25:013
237299950,3cyclictest0-21swapper/312:27:503
237299950,0cyclictest0-21swapper/312:13:173
237299950,0cyclictest0-21swapper/312:13:173
237299950,0cyclictest0-21swapper/311:05:193
237249950,5cyclictest0-21swapper/210:57:142
237249950,5cyclictest0-21swapper/210:33:222
237249950,4cyclictest4542-21apt-get07:35:122
237249950,4cyclictest14621-21apt-get09:00:092
237249950,4cyclictest0-21swapper/212:20:122
237209955,0cyclictest0-21swapper/109:40:221
237209951,3cyclictest0-21swapper/111:00:111
237209951,2cyclictest0-21swapper/110:40:131
237209950,5cyclictest0-21swapper/111:08:411
237209950,5cyclictest0-21swapper/109:51:071
237159955,0cyclictest0-21swapper/011:03:380
237159950,5cyclictest26308-21kworker/0:109:25:150
237159950,5cyclictest0-21swapper/010:03:150
237159950,4cyclictest0-21swapper/011:45:120
31226240,0sleep20-21swapper/207:20:222
237299944,0cyclictest0-21swapper/312:38:453
237299943,1cyclictest391ktimersoftd/311:20:133
237299943,1cyclictest16756-21grep11:00:123
237299942,2cyclictest57150irq/125-eth009:40:053
237299942,1cyclictest802-21snmpd08:20:043
237299942,1cyclictest802-21snmpd07:40:053
237299942,1cyclictest802-21snmpd07:10:023
237299942,1cyclictest29553-21/usr/sbin/munin07:20:143
237299942,1cyclictest16518-21ssh11:48:413
237299941,3cyclictest57150irq/125-eth009:36:583
237299941,3cyclictest3050-21fschecks_count12:30:133
237299941,2cyclictest0-21swapper/308:45:123
237299941,2cyclictest0-21swapper/307:55:133
237299941,1cyclictest0-21swapper/307:35:133
237299940,4cyclictest352-21taskset10:52:023
237299940,4cyclictest19661-21apt10:30:013
237299940,4cyclictest0-21swapper/311:37:473
237299940,4cyclictest0-21swapper/311:15:123
237299940,4cyclictest0-21swapper/311:10:133
237299940,4cyclictest0-21swapper/310:42:303
237299940,4cyclictest0-21swapper/310:20:123
237299940,4cyclictest0-21swapper/310:15:143
237299940,4cyclictest0-21swapper/310:05:413
237299940,4cyclictest0-21swapper/309:20:143
237299940,4cyclictest0-21swapper/309:15:113
237299940,4cyclictest0-21swapper/308:55:123
237299940,4cyclictest0-21swapper/308:25:013
237299940,4cyclictest0-21swapper/307:15:153
237299940,3cyclictest802-21snmpd08:40:143
237299940,3cyclictest7596-21ssh12:15:593
237299940,3cyclictest5943-21/usr/sbin/munin10:55:183
237299940,3cyclictest4936-21ssh09:50:163
237299940,3cyclictest4112-21sh11:42:113
237299940,3cyclictest29971-21sh10:35:013
237299940,3cyclictest28163-21ssh09:30:013
237299940,3cyclictest2141-21perl11:25:123
237299940,3cyclictest20686-21diskstats10:30:113
237299940,3cyclictest20317-21memory11:50:163
237299940,3cyclictest15296-21/usr/sbin/munin12:20:133
237299940,3cyclictest14499-21apt-config07:55:003
237299940,3cyclictest10195-21diskstats08:50:153
237299940,2cyclictest0-21swapper/309:48:233
237299940,1cyclictest30404-21memory11:55:163
237299940,1cyclictest20694-21memory08:05:183
237249944,0cyclictest0-21swapper/210:06:452
237249944,0cyclictest0-21swapper/207:15:202
237249942,2cyclictest520-21in:imuxsock11:45:002
237249942,2cyclictest0-21swapper/212:37:042
237249940,4cyclictest9401-21ssh10:40:182
237249940,4cyclictest28611-21taskset10:01:402
237249940,4cyclictest19337-21diskmemload11:01:402
237249940,4cyclictest0-21swapper/212:25:112
237249940,4cyclictest0-21swapper/212:15:122
237249940,4cyclictest0-21swapper/212:06:412
237249940,4cyclictest0-21swapper/211:55:132
237249940,4cyclictest0-21swapper/211:32:052
237249940,4cyclictest0-21swapper/211:25:102
237249940,4cyclictest0-21swapper/211:22:352
237249940,4cyclictest0-21swapper/211:15:122
237249940,4cyclictest0-21swapper/211:05:142
237249940,4cyclictest0-21swapper/210:50:342
237249940,4cyclictest0-21swapper/209:58:572
237249940,4cyclictest0-21swapper/209:54:512
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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