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2026-04-11 - 14:55
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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 rackaslot8.osadl.org (updated Sat Apr 11, 2026 12:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
244102303276,17sleep20-21swapper/207:09:442
243362270240,20sleep10-21swapper/107:08:471
243472267234,22sleep00-21swapper/007:08:540
243452260229,20sleep30-21swapper/307:08:533
119282590,0sleep10-21swapper/111:25:171
108712580,0sleep00-21swapper/009:46:220
309782560,0sleep30-21swapper/312:35:543
147662560,0sleep10-21swapper/111:46:391
149082550,0sleep30-21swapper/310:08:433
195962520,0sleep20-21swapper/212:29:482
104932180,1sleep310495-21fschecks_time10:45:153
312832170,0sleep00-21swapper/007:20:180
15862170,0sleep012-21ksoftirqd/012:38:150
14202170,0sleep30-21swapper/310:40:103
44682160,0sleep30-21swapper/311:20:223
149972160,1sleep30-21swapper/311:27:113
8092140,0sleep00-21swapper/009:20:260
36722140,0sleep30-21swapper/309:42:073
324462130,0sleep30-21swapper/311:57:383
285102130,0sleep00-21swapper/011:55:150
208122120,0sleep10-21swapper/108:10:161
23502110,0sleep00-21swapper/012:19:090
8668290,0sleep30-21swapper/309:45:173
245479990,8cyclictest8382-21chrt11:23:262
245449998,1cyclictest22-21ksoftirqd/111:45:001
245449992,4cyclictest14422-21awk09:10:001
31051280,0sleep20-21swapper/212:35:572
245519988,0cyclictest18455-21kworker/3:011:47:333
245479983,4cyclictest504-21dbus-daemon08:00:012
245449983,3cyclictest275-21systemd-journal07:55:011
21310280,0sleep00-21swapper/010:51:240
8759270,0sleep30-21swapper/312:22:453
25721270,0sleep20-21swapper/209:16:002
25461270,0sleep30-21swapper/311:33:563
245519975,1cyclictest19485-21turbostat.cron12:10:003
245519974,2cyclictest923-21sshd09:20:313
245519973,3cyclictest658-21snmpd08:04:063
245519973,3cyclictest304-21systemd-udevd07:32:363
245519973,3cyclictest275-21systemd-journal09:06:503
245519973,3cyclictest25279-21apt-get10:15:133
245519973,3cyclictest25279-21apt-get10:15:133
245519973,3cyclictest18359-21perl08:05:153
245519973,2cyclictest14954-21cat09:10:113
245519972,2cyclictest22796-21ssh12:30:543
245479976,1cyclictest14411-21diskmemload10:57:202
245479973,3cyclictest275-21systemd-journal09:01:442
245479972,3cyclictest658-21snmpd10:27:462
245479971,5cyclictest4536-21tr07:35:122
245449973,3cyclictest275-21systemd-journal11:34:101
245449973,3cyclictest275-21systemd-journal10:03:121
245409976,1cyclictest12-21ksoftirqd/009:10:000
245409974,2cyclictest658-21snmpd09:35:080
245409973,3cyclictest275-21systemd-journal12:06:010
245409973,3cyclictest275-21systemd-journal08:10:210
245409971,3cyclictest6472-21turbostat07:40:010
15949270,0sleep20-21swapper/211:08:162
14522270,0sleep30-21swapper/311:07:093
5279260,0sleep20-21swapper/211:40:392
31150260,0sleep10-21swapper/111:36:581
245519966,0cyclictest0-21swapper/310:20:213
245519963,2cyclictest663-21runrttasks07:44:043
245519963,2cyclictest658-21snmpd10:28:223
245519963,2cyclictest658-21snmpd08:50:073
245519963,2cyclictest3428-21rm12:00:063
245519963,2cyclictest32027-21taskset11:18:003
245519963,2cyclictest31508-21ssh10:38:333
245519963,2cyclictest304-21systemd-udevd07:48:363
245519963,2cyclictest304-21systemd-udevd07:38:363
245519963,2cyclictest28447-21cat12:15:133
245519963,2cyclictest275-21systemd-journal09:25:323
245519963,2cyclictest26036-21wc09:55:213
245519963,2cyclictest21426-21ssh10:32:053
245519963,2cyclictest17284-21ssh09:30:313
245519963,2cyclictest16675-21expr09:50:143
245519963,2cyclictest13151-21ntpq12:25:163
245519963,2cyclictest10618-21diskstats09:00:133
245519962,3cyclictest658-21snmpd12:10:213
245519962,3cyclictest658-21snmpd11:50:363
245519962,3cyclictest658-21snmpd11:38:173
245519962,3cyclictest658-21snmpd11:12:023
245519962,3cyclictest658-21snmpd11:04:323
245519962,3cyclictest658-21snmpd10:00:573
245519962,3cyclictest658-21snmpd08:55:013
245519962,3cyclictest658-21snmpd08:47:553
245519962,3cyclictest658-21snmpd08:35:333
245519962,3cyclictest658-21snmpd08:27:453
245519962,3cyclictest658-21snmpd07:57:083
245519962,3cyclictest658-21snmpd07:52:263
245519962,3cyclictest658-21snmpd07:24:193
245519962,3cyclictest658-21snmpd07:16:223
245519962,3cyclictest26701-21cat10:55:133
245519962,3cyclictest21018-21ntpq08:10:173
245519962,2cyclictest674-21lldpd08:41:583
245519961,4cyclictest17975-21cat10:10:163
245519960,6cyclictest0-21swapper/310:51:373
245479966,0cyclictest0-21swapper/211:14:322
245479966,0cyclictest0-21swapper/210:40:292
245479964,2cyclictest501-21in:imuxsock08:55:002
245479963,2cyclictest9836-21ssh12:23:362
245479963,2cyclictest9195-21cron10:45:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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