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2026-09-08 - 16:27
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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 Tue Sep 08, 2026 12:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
151372320290,19sleep20-21swapper/207:09:542
149122282256,17sleep10-21swapper/107:07:151
150202264232,21sleep30-21swapper/307:08:383
149892253223,20sleep00-21swapper/007:08:150
45272590,0sleep20-21swapper/210:06:312
311212580,0sleep00-21swapper/010:03:290
289512580,0sleep30-21swapper/308:50:113
171032580,0sleep10-21swapper/111:11:441
91402570,0sleep10-21swapper/110:48:071
311252570,0sleep20-21swapper/207:40:202
283192570,0sleep10-21swapper/109:42:431
77562560,0sleep30-21swapper/312:24:103
196372220,0sleep10-21swapper/112:11:151
255612190,0sleep10-21swapper/111:16:501
275672170,0sleep00-21swapper/012:15:550
71842150,0sleep00-21swapper/008:00:160
112862150,0sleep10-21swapper/111:27:551
283022100,0sleep00-21swapper/010:59:590
1524799109,1cyclictest12-21ksoftirqd/011:30:010
16743290,0sleep00-21swapper/009:55:080
152479994,4cyclictest0-21swapper/011:05:010
19962280,0sleep00-21swapper/012:30:480
1944280,1sleep30-21swapper/309:45:413
16519280,0sleep20-21swapper/211:30:322
152599986,1cyclictest16388-21ssh10:52:183
152519984,3cyclictest275-21systemd-journal08:10:011
152479986,2cyclictest12-21ksoftirqd/009:40:010
152479986,1cyclictest12902-21runrttasks12:26:450
29507270,0sleep20-21swapper/211:19:512
23797270,0sleep20-21swapper/211:35:172
19093270,0sleep00-21swapper/011:13:160
152599973,3cyclictest504-21dbus-daemon07:22:263
152599973,3cyclictest275-21systemd-journal09:40:003
152599973,3cyclictest17620-21sshd12:30:123
152599972,3cyclictest275-21systemd-journal09:16:203
152599970,1cyclictest22829-21diskmemload10:17:393
152569973,3cyclictest9166-21snmpd09:12:442
152569972,3cyclictest275-21systemd-journal12:14:102
152519974,2cyclictest24913-21ssh10:19:151
152519973,3cyclictest9166-21snmpd10:50:471
152519973,3cyclictest7143-21sshd11:45:071
152519973,3cyclictest7143-21sshd11:45:071
152479974,2cyclictest9166-21snmpd09:41:090
152479974,2cyclictest663-21runrttasks10:15:140
152479973,3cyclictest674-21lldpd09:33:030
152479973,3cyclictest275-21systemd-journal07:18:160
152599966,0cyclictest0-21swapper/312:13:293
152599966,0cyclictest0-21swapper/310:56:233
152599966,0cyclictest0-21swapper/309:00:033
152599965,1cyclictest0-21swapper/311:37:533
152599964,1cyclictest17429-21sh07:15:003
152599963,2cyclictest9166-21snmpd12:26:353
152599963,2cyclictest9166-21snmpd11:45:043
152599963,2cyclictest9166-21snmpd11:45:043
152599963,2cyclictest9166-21snmpd11:13:093
152599963,2cyclictest9166-21snmpd10:45:113
152599963,2cyclictest8342-21ls08:05:003
152599963,2cyclictest31777-21diskstats11:40:143
152599963,2cyclictest30570-21uname07:40:163
152599963,2cyclictest23089-21cat07:25:123
152599963,2cyclictest2274-21ssh12:00:483
152599963,2cyclictest18308-21ssh09:55:203
152599963,2cyclictest11004-21ssh09:50:593
152599963,2cyclictest11004-21ssh09:50:593
152599963,1cyclictest0-21swapper/311:51:363
152599963,1cyclictest0-21swapper/309:40:333
152599962,3cyclictest9166-21snmpd11:58:403
152599962,3cyclictest9166-21snmpd11:21:333
152599962,3cyclictest9166-21snmpd11:07:153
152599962,3cyclictest9166-21snmpd10:36:493
152599962,3cyclictest9166-21snmpd10:27:053
152599962,3cyclictest9166-21snmpd10:11:343
152599962,3cyclictest9166-21snmpd10:08:493
152599962,3cyclictest9166-21snmpd09:26:443
152599962,3cyclictest9166-21snmpd09:22:023
152599962,3cyclictest9166-21snmpd08:31:163
152599962,3cyclictest9166-21snmpd08:21:493
152599962,3cyclictest9166-21snmpd08:11:033
152599962,3cyclictest9166-21snmpd08:09:063
152599962,3cyclictest9166-21snmpd07:51:543
152599962,3cyclictest9166-21snmpd07:48:063
152599962,3cyclictest9166-21snmpd07:16:083
152599962,3cyclictest8762-21grep12:05:143
152599962,3cyclictest30313-21ssh12:18:003
152599962,3cyclictest28915-21apt11:00:143
152599962,3cyclictest28578-21cat10:40:153
152599962,3cyclictest275-21systemd-journal11:15:023
152599962,3cyclictest275-21systemd-journal09:32:403
152599962,2cyclictest275-21systemd-journal08:39:323
152599960,6cyclictest0-21swapper/311:31:513
152599960,6cyclictest0-21swapper/311:28:233
152599960,6cyclictest0-21swapper/307:58:213
152599960,6cyclictest0-21swapper/307:30:483
152569966,0cyclictest0-21swapper/210:46:322
152569963,2cyclictest9166-21snmpd09:20:232
152569963,2cyclictest8101-21ssh12:05:032
152569963,2cyclictest656-21apt-get09:00:112
152569963,2cyclictest31445-21cpuspeed11:40:132
152569963,2cyclictest28911-11brltty09:51:562
152569963,2cyclictest28911-11brltty09:51:562
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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