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2026-03-11 - 04:08
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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 Wed Mar 11, 2026 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
245312313283,19sleep20-21swapper/219:08:342
246182281249,20sleep10-21swapper/119:09:421
243182268242,17sleep00-21swapper/019:05:510
244692258225,22sleep30-21swapper/319:07:473
221112900,0sleep10-21swapper/100:31:021
242102620,0sleep30-21swapper/323:33:433
171632610,0sleep1211rcuc/121:30:181
176662570,0sleep20-21swapper/200:09:262
60362560,0sleep30-21swapper/300:21:123
202612560,0sleep20-21swapper/221:52:142
110132560,0sleep30-21swapper/300:05:133
159452540,0sleep00-21swapper/021:10:150
49592200,0sleep20-21swapper/223:21:282
24612200,0sleep00-21swapper/022:40:180
24612200,0sleep00-21swapper/022:40:180
268342190,0sleep10-21swapper/100:15:001
62642160,0sleep30-21swapper/323:42:113
52702160,0sleep00-21swapper/021:43:240
290222150,0sleep30-21swapper/322:56:343
220812150,0sleep10-21swapper/122:13:201
292512130,0sleep3331rcuc/319:15:193
177522130,0sleep30-21swapper/322:10:183
156902130,0sleep30-21swapper/300:27:203
2473799108,2cyclictest12-21ksoftirqd/000:00:000
20929290,0sleep00-21swapper/021:33:110
13288290,0sleep20-21swapper/223:46:182
9618280,0sleep00-21swapper/000:04:300
247509984,3cyclictest275-21systemd-journal21:34:593
247459987,1cyclictest28-21ksoftirqd/222:30:012
247459984,3cyclictest27223-21awk00:35:002
247379987,1cyclictest12-21ksoftirqd/019:15:000
247379980,7cyclictest10641-21ssh22:25:190
247379980,2cyclictest14525-21rm22:48:030
17720280,0sleep00-21swapper/021:50:200
17224280,0sleep10-21swapper/123:09:571
247509974,2cyclictest501-21in:imuxsock21:50:013
247509974,2cyclictest491-21systemd-logind20:03:323
247509974,2cyclictest10954-21grep23:45:133
247509973,3cyclictest658-21snmpd23:01:443
247509973,3cyclictest658-21snmpd22:22:293
247509973,3cyclictest658-21snmpd22:16:533
247509973,3cyclictest658-21snmpd21:02:013
247509973,3cyclictest658-21snmpd19:53:053
247509973,3cyclictest30070-21cat20:30:163
247509973,3cyclictest275-21systemd-journal21:40:003
247509973,1cyclictest0-21swapper/321:50:253
247459973,3cyclictest275-21systemd-journal23:07:192
247459973,3cyclictest25340-21df_inode20:20:132
247459973,3cyclictest2180-21ntpq22:40:162
247459973,3cyclictest2180-21ntpq22:40:162
247459973,3cyclictest1869-21seq22:20:192
247459973,2cyclictest275-21systemd-journal22:33:322
247459972,1cyclictest0-21swapper/222:35:522
247459970,4cyclictest1021-21plymouth23:00:022
247419975,1cyclictest29841-21ssh21:19:061
247419974,2cyclictest504-21dbus-daemon20:20:011
247419974,2cyclictest275-21systemd-journal23:41:281
247419973,2cyclictest275-21systemd-journal22:09:171
247379976,1cyclictest12-21ksoftirqd/020:35:010
247379976,1cyclictest12-21ksoftirqd/000:35:000
247379973,3cyclictest275-21systemd-journal21:22:300
247379973,2cyclictest275-21systemd-journal23:31:270
9410260,0sleep20-21swapper/200:04:202
2712260,0sleep20-21swapper/223:40:142
247509966,0cyclictest0-21swapper/321:55:013
247509963,2cyclictest9706-21diskstats22:45:123
247509963,2cyclictest9689-21ssh23:25:023
247509963,2cyclictest8016-21cat21:25:133
247509963,2cyclictest6879-21sh22:04:173
247509963,2cyclictest663-21runrttasks20:43:193
247509963,2cyclictest658-21snmpd21:24:123
247509963,2cyclictest658-21snmpd19:34:363
247509963,2cyclictest6485-21sh22:43:103
247509963,2cyclictest6485-21sh22:43:103
247509963,2cyclictest501-21in:imuxsock20:21:343
247509963,2cyclictest29798-21ssh00:35:383
247509963,2cyclictest29044-21ssh21:18:303
247509963,2cyclictest275-21systemd-journal23:06:283
247509963,2cyclictest275-21systemd-journal20:15:503
247509963,2cyclictest25033-21sh00:33:203
247509963,2cyclictest21600-21ssh23:11:583
247509963,2cyclictest18728-21rm00:10:043
247509963,2cyclictest14537-21diskmemload00:15:353
247509962,3cyclictest658-21snmpd23:55:333
247509962,3cyclictest658-21snmpd23:20:033
247509962,3cyclictest658-21snmpd22:54:143
247509962,3cyclictest658-21snmpd21:42:383
247509962,3cyclictest658-21snmpd20:57:313
247509962,3cyclictest658-21snmpd20:52:583
247509962,3cyclictest658-21snmpd20:06:483
247509962,3cyclictest658-21snmpd19:28:453
247509962,3cyclictest658-21snmpd19:21:583
247509962,3cyclictest5327-21sshd20:46:173
247509962,3cyclictest275-21systemd-journal23:16:253
247509962,2cyclictest674-21lldpd21:11:483
247509962,1cyclictest0-21swapper/322:34:483
247509962,1cyclictest0-21swapper/300:01:303
247509961,4cyclictest8765-21ssh22:25:033
247509960,5cyclictest11977-21ssh22:06:503
247509960,3cyclictest27280-21/usr/sbin/munin23:35:163
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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