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2026-03-15 - 23:34
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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 Sun Mar 15, 2026 12:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
187292314289,17sleep20-21swapper/207:06:102
187032309278,21sleep10-21swapper/107:05:501
188562265233,21sleep30-21swapper/307:07:483
189372258223,22sleep00-21swapper/007:08:380
180732640,0sleep2271rcuc/209:15:112
253052630,0sleep30-21swapper/307:20:143
130932630,0sleep20-21swapper/209:31:102
178302590,0sleep00-21swapper/009:34:510
168482580,2sleep122-21ksoftirqd/108:15:001
104582580,1sleep210464-21needreboot09:10:142
37182570,0sleep00-21swapper/010:25:010
133242540,0sleep10-21swapper/109:31:201
220702530,0sleep30-21swapper/309:17:083
246022180,0sleep20-21swapper/211:35:182
102222180,0sleep20-21swapper/210:48:022
210012170,0sleep20-21swapper/210:15:192
273132160,0sleep00-21swapper/011:17:550
302632150,0sleep30-21swapper/310:40:193
83342140,0sleep30-21swapper/311:45:133
11482140,0sleep00-21swapper/010:23:130
187062130,0sleep10-21swapper/111:51:071
185142130,0sleep00-21swapper/012:10:240
209362100,0sleep30-21swapper/312:12:153
19303290,0sleep00-21swapper/011:51:350
191639996,2cyclictest34-21ksoftirqd/308:40:003
191509993,3cyclictest26729-21munin-run07:25:010
21110280,7sleep321208-21apt-config08:25:003
191639984,3cyclictest27702-21ntpq09:40:163
191589986,1cyclictest7967-21df11:45:102
6259270,0sleep30-21swapper/309:00:203
5607270,0sleep10-21swapper/109:26:441
30653270,0sleep10-21swapper/112:37:401
191639974,2cyclictest34-21ksoftirqd/308:20:003
191639974,2cyclictest275-21systemd-journal10:23:573
191639974,2cyclictest275-21systemd-journal07:10:233
191639973,3cyclictest275-21systemd-journal08:56:003
191639972,3cyclictest275-21systemd-journal08:14:563
191589976,1cyclictest28-21ksoftirqd/212:40:002
191589974,2cyclictest275-21systemd-journal08:49:102
191589973,3cyclictest275-21systemd-journal11:15:192
191589970,4cyclictest11703-21munin-run10:30:012
191559973,3cyclictest560-21gdbus10:35:001
191559973,3cyclictest560-21gdbus08:40:011
191559973,3cyclictest275-21systemd-journal11:45:001
191559970,4cyclictest275-21systemd-journal08:20:001
191509974,2cyclictest275-21systemd-journal10:05:010
191509972,3cyclictest674-21lldpd08:31:280
8030260,0sleep00-21swapper/009:05:170
191639966,0cyclictest0-21swapper/310:49:163
191639965,1cyclictest15554-21ssh12:09:303
191639963,2cyclictest658-21snmpd12:26:143
191639963,2cyclictest5949-21cut07:50:113
191639963,2cyclictest5535-21latency_hist07:50:003
191639963,2cyclictest4201-21cstates10:25:143
191639963,2cyclictest32064-21ssh11:00:423
191639963,2cyclictest29767-21ssh12:17:433
191639963,2cyclictest26180-21sh10:18:553
191639963,2cyclictest25202-21ls08:30:173
191639963,2cyclictest23738-21ssh10:55:413
191639963,2cyclictest22665-21ssh10:35:283
191639963,2cyclictest1993-21ssh09:25:083
191639963,2cyclictest18790-21ls09:55:013
191639963,2cyclictest18628-21cut12:30:163
191639963,2cyclictest18425-21sh09:35:093
191639963,2cyclictest17359-21ssh10:32:473
191639963,2cyclictest16301-11brltty11:41:073
191639963,2cyclictest14891-21cut11:30:143
191639963,2cyclictest12524-21ssh09:11:203
191639963,2cyclictest1-21systemd12:35:193
191639963,1cyclictest0-21swapper/311:36:313
191639962,3cyclictest658-21snmpd12:20:023
191639962,3cyclictest658-21snmpd12:02:403
191639962,3cyclictest658-21snmpd11:16:273
191639962,3cyclictest658-21snmpd09:57:523
191639962,3cyclictest658-21snmpd09:45:173
191639962,3cyclictest658-21snmpd07:55:343
191639962,3cyclictest658-21snmpd07:40:563
191639962,3cyclictest658-21snmpd07:32:443
191639962,3cyclictest6342-21cat11:05:133
191639962,3cyclictest4016-21tail10:05:133
191639962,3cyclictest26938-21basename09:20:133
191639962,1cyclictest0-21swapper/311:23:513
191639962,1cyclictest0-21swapper/311:12:393
191639962,1cyclictest0-21swapper/310:52:213
191639961,4cyclictest0-21swapper/310:00:133
191639960,0cyclictest0-21swapper/311:51:433
191639960,0cyclictest0-21swapper/309:30:293
191589966,0cyclictest0-21swapper/210:09:042
191589964,2cyclictest658-21snmpd12:05:462
191589963,2cyclictest716-21sh11:21:002
191589963,2cyclictest674-21lldpd08:41:452
191589963,2cyclictest658-21snmpd10:00:012
191589963,2cyclictest658-21snmpd08:16:482
191589963,2cyclictest6423-21basename07:50:152
191589963,2cyclictest504-21dbus-daemon11:55:002
191589963,2cyclictest29535-21sh12:17:332
191589963,2cyclictest28212-21sh09:20:302
191589963,2cyclictest275-21systemd-journal10:30:032
191589963,2cyclictest24777-21ssh10:56:292
191589963,2cyclictest23316-21rm10:35:592
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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