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2025-11-25 - 23:29
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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 Tue Nov 25, 2025 12:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
175652200183,12sleep30-21swapper/307:06:493
175982199182,12sleep10-21swapper/107:07:151
175872196177,14sleep00-21swapper/007:07:050
156002174157,12sleep20-21swapper/207:05:122
255842480,0sleep30-21swapper/310:52:163
144232450,0sleep10-21swapper/109:10:141
195682430,0sleep20-21swapper/209:45:062
134612420,0sleep20-21swapper/210:46:032
109452420,0sleep10-21swapper/110:29:201
273482300,1sleep11802099cyclictest10:36:571
23914290,0sleep10-21swapper/108:25:131
180139973,4cyclictest3723-21munin-run08:50:000
180139971,3cyclictest11152-21munin-run09:05:010
180139962,4cyclictest22547-21sendmail-msp11:40:010
180139960,3cyclictest1298-21basename07:40:010
8825250,0sleep10-21swapper/111:00:151
23979250,0sleep00-21swapper/011:56:070
180299950,5cyclictest23955-21sed11:40:153
180299950,5cyclictest0-21swapper/311:53:323
180299950,5cyclictest0-21swapper/311:19:303
180299950,5cyclictest0-21swapper/310:48:223
180299950,5cyclictest0-21swapper/309:29:043
180299950,4cyclictest0-21swapper/309:55:023
180299950,3cyclictest0-21swapper/311:34:123
180299950,3cyclictest0-21swapper/309:51:293
180299950,1cyclictest2125-21ssh12:35:003
180249954,1cyclictest0-21swapper/212:20:172
180249950,5cyclictest0-21swapper/212:00:142
180249950,5cyclictest0-21swapper/211:57:522
180249950,5cyclictest0-21swapper/210:34:392
180249950,5cyclictest0-21swapper/210:15:142
180249950,5cyclictest0-21swapper/210:08:102
180249950,5cyclictest0-21swapper/207:35:222
180249950,4cyclictest6741-21memory11:15:172
180249950,4cyclictest21342-21ssh11:06:072
180249950,4cyclictest18036-21ssh12:10:122
180249950,4cyclictest0-21swapper/209:15:112
180209951,2cyclictest0-21swapper/109:50:131
180209951,2cyclictest0-21swapper/109:35:131
180209950,5cyclictest0-21swapper/112:00:421
180209950,5cyclictest0-21swapper/111:50:571
180139950,5cyclictest0-21swapper/012:27:400
180139950,5cyclictest0-21swapper/011:04:010
180139950,5cyclictest0-21swapper/010:18:280
180139950,5cyclictest0-21swapper/010:06:240
180139950,5cyclictest0-21swapper/009:58:060
180139950,5cyclictest0-21swapper/009:31:450
180139950,1cyclictest7545-21munin-run11:00:010
180139950,1cyclictest20544-21latency_hist07:15:000
13522250,0sleep10-21swapper/110:30:161
5037240,0sleep10-21swapper/111:46:511
4496240,0sleep00-21swapper/012:19:490
180299944,0cyclictest32624-21kworker/3:112:00:113
180299944,0cyclictest32003-21kworker/3:209:12:163
180299944,0cyclictest32003-21kworker/3:208:05:073
180299944,0cyclictest0-21swapper/311:45:153
180299943,1cyclictest28732-21/usr/sbin/munin08:35:153
180299942,1cyclictest714-21snmpd08:00:083
180299942,1cyclictest4743-21ssh10:10:023
180299942,1cyclictest18582-21diskstats12:10:143
180299941,3cyclictest714-21snmpd07:45:203
180299941,3cyclictest55950irq/130-eth011:55:133
180299941,3cyclictest55950irq/130-eth011:35:183
180299941,2cyclictest0-21swapper/310:30:123
180299941,2cyclictest0-21swapper/307:10:023
180299941,1cyclictest0-21swapper/309:20:133
180299941,1cyclictest0-21swapper/307:30:133
180299940,4cyclictest8926-21apt-get07:55:133
180299940,4cyclictest3762-21munin-run07:45:013
180299940,4cyclictest14760-21ssh09:42:133
180299940,4cyclictest0-21swapper/312:37:543
180299940,4cyclictest0-21swapper/311:25:133
180299940,4cyclictest0-21swapper/311:05:393
180299940,4cyclictest0-21swapper/310:00:123
180299940,4cyclictest0-21swapper/309:38:343
180299940,4cyclictest0-21swapper/309:30:123
180299940,4cyclictest0-21swapper/309:15:133
180299940,4cyclictest0-21swapper/308:50:113
180299940,4cyclictest0-21swapper/308:45:113
180299940,4cyclictest0-21swapper/308:20:133
180299940,4cyclictest0-21swapper/307:50:103
180299940,4cyclictest0-21swapper/307:50:093
180299940,4cyclictest0-21swapper/307:20:103
180299940,3cyclictest7850-21sh12:20:373
180299940,3cyclictest5979-21ssh10:26:113
180299940,3cyclictest30172-21ssh10:55:023
180299940,3cyclictest27101-21hddtemp_smartct08:30:143
180299940,3cyclictest26502-21/usr/sbin/munin07:25:163
180299940,3cyclictest22487-21ssh10:35:023
180299940,3cyclictest21808-21users09:45:223
180299940,3cyclictest15398-21sh11:03:413
180299940,3cyclictest15136-21ssh10:15:143
180299940,1cyclictest8909-21/usr/sbin/munin09:00:173
180299940,1cyclictest23791-21/usr/sbin/munin08:25:133
180299940,1cyclictest2082-21python10:40:213
180299940,1cyclictest18829-21/usr/sbin/munin08:15:193
180299940,1cyclictest15265-21/usr/sbin/munin12:25:143
180249944,0cyclictest0-21swapper/211:28:292
180249944,0cyclictest0-21swapper/210:27:482
180249942,2cyclictest714-21snmpd08:13:142
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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