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2026-04-26 - 19:10
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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 Sun Apr 26, 2026 12:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
309732204189,11sleep10-21swapper/107:08:321
288722194175,14sleep00-21swapper/007:05:100
307902181163,13sleep30-21swapper/307:06:093
310672171155,12sleep20-21swapper/207:09:412
4212460,0sleep00-21swapper/009:43:480
48392450,0sleep10-21swapper/109:45:211
28702420,0sleep20-21swapper/211:51:082
28702420,0sleep20-21swapper/211:51:082
56382400,0sleep30-21swapper/312:09:073
221142120,0sleep20-21swapper/210:41:122
180242100,0sleep00-21swapper/011:10:510
312599965,1cyclictest31-21ksoftirqd/208:15:122
312539966,0cyclictest3-21ksoftirqd/012:20:130
5440250,0sleep00-21swapper/012:09:000
312639955,0cyclictest0-21swapper/311:50:143
312639955,0cyclictest0-21swapper/311:50:143
312639955,0cyclictest0-21swapper/310:09:243
312639950,5cyclictest0-21swapper/312:35:113
312639950,5cyclictest0-21swapper/312:10:363
312639950,5cyclictest0-21swapper/311:13:343
312639950,4cyclictest3609-21hddtemp_smartct08:20:143
312639950,0cyclictest0-21swapper/309:53:153
312599954,1cyclictest31-21ksoftirqd/209:30:112
312599954,1cyclictest31-21ksoftirqd/209:20:002
312599953,1cyclictest31-21ksoftirqd/207:40:012
312599950,5cyclictest0-21swapper/210:08:392
312549951,2cyclictest0-21swapper/111:30:121
312549951,2cyclictest0-21swapper/109:10:121
312549950,5cyclictest0-21swapper/110:19:541
312539951,3cyclictest11009-21tail07:30:160
312539950,5cyclictest0-21swapper/012:01:380
312539950,5cyclictest0-21swapper/010:48:270
312539950,4cyclictest5433-21apt-get08:25:010
312539950,4cyclictest0-21swapper/007:45:010
312539950,3cyclictest81rcu_preempt10:05:130
312539950,0cyclictest0-21swapper/009:14:010
20674250,0sleep30-21swapper/311:28:273
11762250,0sleep00-21swapper/011:24:240
312639944,0cyclictest25955-21kworker/3:012:25:413
312639944,0cyclictest25955-21kworker/3:009:48:563
312639944,0cyclictest25955-21kworker/3:008:52:573
312639944,0cyclictest25955-21kworker/3:008:41:463
312639944,0cyclictest25955-21kworker/3:008:30:333
312639944,0cyclictest25955-21kworker/3:007:34:343
312639944,0cyclictest25955-21kworker/3:007:12:113
312639944,0cyclictest0-21swapper/312:31:163
312639944,0cyclictest0-21swapper/311:19:323
312639944,0cyclictest0-21swapper/311:05:253
312639944,0cyclictest0-21swapper/310:30:043
312639944,0cyclictest0-21swapper/309:30:503
312639944,0cyclictest0-21swapper/309:25:113
312639944,0cyclictest0-21swapper/309:22:333
312639943,1cyclictest12820-21df_inode07:35:123
312639942,2cyclictest27685-21diskmemload09:59:423
312639942,1cyclictest25970-21df_inode09:05:133
312639942,1cyclictest23226-21ssh10:10:163
312639941,2cyclictest0-21swapper/307:20:113
312639941,1cyclictest28224-21ssh09:10:133
312639941,1cyclictest0-21swapper/308:05:123
312639940,4cyclictest27685-21diskmemload11:45:123
312639940,4cyclictest27685-21diskmemload11:41:153
312639940,4cyclictest1528-21unixbench-2d07:15:003
312639940,4cyclictest0-21swapper/311:38:413
312639940,4cyclictest0-21swapper/311:30:123
312639940,4cyclictest0-21swapper/311:00:123
312639940,4cyclictest0-21swapper/310:55:113
312639940,4cyclictest0-21swapper/310:53:013
312639940,4cyclictest0-21swapper/310:35:023
312639940,4cyclictest0-21swapper/310:15:263
312639940,4cyclictest0-21swapper/309:42:113
312639940,4cyclictest0-21swapper/309:15:563
312639940,3cyclictest2803-21ssh11:20:023
312639940,3cyclictest25617-21diskstats08:00:133
312639940,3cyclictest19985-21date10:25:013
312639940,3cyclictest14867-21/usr/sbin/munin09:35:163
312639940,3cyclictest0-21swapper/311:55:123
312639940,3cyclictest0-21swapper/308:45:123
312599944,0cyclictest31-21ksoftirqd/210:40:012
312599944,0cyclictest31-21ksoftirqd/210:00:112
312599944,0cyclictest31-21ksoftirqd/208:10:112
312599944,0cyclictest31-21ksoftirqd/207:20:112
312599943,1cyclictest31-21ksoftirqd/212:25:112
312599942,1cyclictest802-21snmpd09:03:312
312599942,1cyclictest14542-21ssh09:35:012
312599942,1cyclictest10186-21ssh11:39:272
312599941,3cyclictest57150irq/125-eth012:10:122
312599941,2cyclictest0-21swapper/209:10:122
312599941,2cyclictest0-21swapper/208:30:122
312599940,4cyclictest9813-21apt-get07:30:012
312599940,4cyclictest9482-21ssh11:55:052
312599940,4cyclictest31-21ksoftirqd/210:45:132
312599940,4cyclictest29457-21tr12:20:172
312599940,4cyclictest26506-21df_inode12:35:132
312599940,4cyclictest0-21swapper/212:30:192
312599940,4cyclictest0-21swapper/212:05:122
312599940,4cyclictest0-21swapper/211:40:112
312599940,4cyclictest0-21swapper/211:15:122
312599940,4cyclictest0-21swapper/211:10:112
312599940,4cyclictest0-21swapper/210:30:122
312599940,4cyclictest0-21swapper/210:20:102
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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