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2026-05-19 - 09:23
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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 May 19, 2026 00:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
105662198182,11sleep30-21swapper/319:06:163
105782197181,12sleep00-21swapper/019:06:260
107462195179,11sleep10-21swapper/119:08:361
10634211480,12sleep20-21swapper/219:07:082
298152490,0sleep10-21swapper/122:24:201
149692460,0sleep30-21swapper/322:32:353
149692460,0sleep30-21swapper/322:32:353
77872450,0sleep20-21swapper/222:13:242
99162430,0sleep10-21swapper/100:37:351
306312430,0sleep10-21swapper/100:31:351
235732390,0sleep00-21swapper/023:25:000
244772130,0sleep10-21swapper/122:53:151
96752110,0sleep10-21swapper/122:45:261
110299992,4cyclictest3258-21munin-run23:14:590
110299982,3cyclictest21813-21munin-run23:39:590
110299981,3cyclictest8765-21awk22:30:010
9241260,0sleep20-21swapper/221:58:182
110429960,6cyclictest0-21swapper/322:20:103
110389960,5cyclictest0-21swapper/222:55:122
110299960,3cyclictest24041-21munin-run20:40:000
110299960,3cyclictest16813-21perf21:15:010
32194250,0sleep10-21swapper/122:40:381
27381250,0sleep10-21swapper/123:42:111
22197250,0sleep20-21swapper/223:55:172
110429955,0cyclictest28606-21ssh23:59:043
110429955,0cyclictest0-21swapper/323:11:303
110429950,5cyclictest0-21swapper/323:16:003
110429950,5cyclictest0-21swapper/321:47:503
110429950,5cyclictest0-21swapper/300:33:333
110429950,4cyclictest6486-21diskmemload22:40:103
110429950,4cyclictest16822-21apt-get20:25:113
110429950,4cyclictest0-21swapper/322:50:113
110429950,4cyclictest0-21swapper/321:40:023
110429950,4cyclictest0-21swapper/321:25:113
110429950,4cyclictest0-21swapper/321:10:123
110429950,4cyclictest0-21swapper/321:00:133
110429950,4cyclictest0-21swapper/320:40:123
110429950,4cyclictest0-21swapper/320:05:113
110429950,0cyclictest6486-21diskmemload21:54:403
110429950,0cyclictest0-21swapper/323:20:323
110429950,0cyclictest0-21swapper/322:13:363
110429950,0cyclictest0-21swapper/322:02:153
110389954,1cyclictest17402-21ssh22:34:042
110389954,1cyclictest17402-21ssh22:34:032
110389950,5cyclictest0-21swapper/200:39:552
110389950,4cyclictest0-21swapper/222:35:132
110389950,2cyclictest0-21swapper/222:40:182
110339955,0cyclictest0-21swapper/119:35:021
110339950,5cyclictest0-21swapper/123:33:401
110339950,5cyclictest0-21swapper/123:26:141
110339950,5cyclictest0-21swapper/123:04:251
110339950,0cyclictest0-21swapper/122:10:431
110299955,0cyclictest0-21swapper/022:43:090
110299951,4cyclictest20738-21munin-run22:20:000
110299950,5cyclictest0-21swapper/023:56:290
110299950,5cyclictest0-21swapper/023:29:000
110299950,5cyclictest0-21swapper/022:55:580
110299950,5cyclictest0-21swapper/022:31:050
110299950,5cyclictest0-21swapper/022:31:040
110299950,5cyclictest0-21swapper/000:08:170
110299950,4cyclictest19581-21wc20:30:110
110429944,0cyclictest0-21swapper/323:51:403
110429944,0cyclictest0-21swapper/321:37:573
110429943,1cyclictest25004-21df19:35:193
110429942,2cyclictest30661-21/usr/sbin/munin00:00:163
110429942,1cyclictest6490-21grep23:00:153
110429941,2cyclictest799-21runrttasks22:35:063
110429941,2cyclictest0-21swapper/300:10:133
110429940,4cyclictest16431-21ssh22:17:233
110429940,4cyclictest0-21swapper/323:40:113
110429940,4cyclictest0-21swapper/323:25:113
110429940,4cyclictest0-21swapper/322:55:133
110429940,4cyclictest0-21swapper/322:45:113
110429940,4cyclictest0-21swapper/321:20:103
110429940,4cyclictest0-21swapper/321:15:133
110429940,4cyclictest0-21swapper/320:45:123
110429940,4cyclictest0-21swapper/320:35:123
110429940,4cyclictest0-21swapper/300:25:003
110429940,4cyclictest0-21swapper/300:20:513
110429940,3cyclictest6486-21diskmemload21:30:033
110429940,3cyclictest6121-21ssh21:56:233
110429940,3cyclictest32007-21df_inode22:25:133
110429940,3cyclictest29438-21apt-get19:45:133
110429940,3cyclictest24274-21sed19:35:013
110429940,3cyclictest15527-21taskset23:05:003
110429940,3cyclictest14189-21ntpq19:15:023
110429940,3cyclictest1410-21ssh23:45:193
110429940,3cyclictest0-21swapper/323:35:013
110429940,3cyclictest0-21swapper/322:07:503
110429940,3cyclictest0-21swapper/319:20:113
110429940,1cyclictest6287-21users20:00:193
110389944,0cyclictest31-21ksoftirqd/221:50:172
110389944,0cyclictest31-21ksoftirqd/221:40:002
110389944,0cyclictest31-21ksoftirqd/220:19:592
110389944,0cyclictest0-21swapper/221:21:462
110389944,0cyclictest0-21swapper/221:15:392
110389944,0cyclictest0-21swapper/220:29:572
110389944,0cyclictest0-21swapper/220:05:132
110389944,0cyclictest0-21swapper/200:17:042
110389943,1cyclictest9382-21/usr/sbin/munin20:10:202
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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