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2026-04-17 - 16:39
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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 Fri Apr 17, 2026 12:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
21432322289,22sleep10-21swapper/107:05:551
23252293263,20sleep20-21swapper/207:08:162
22882263233,19sleep00-21swapper/007:07:470
23942259229,20sleep30-21swapper/307:08:533
272482630,0sleep30-21swapper/309:10:403
117572590,0sleep00-21swapper/011:00:110
3182570,0sleep00-21swapper/009:54:070
289092570,0sleep10-21swapper/109:11:591
191152570,0sleep20-21swapper/210:25:052
121742570,0sleep20-21swapper/211:39:522
109342570,0sleep20-21swapper/212:17:532
102682530,0sleep10-21swapper/111:18:501
313832210,0sleep30-21swapper/311:11:263
492290,0sleep00-21swapper/011:51:360
25829994,3cyclictest504-21dbus-daemon12:05:110
25949985,2cyclictest658-21snmpd11:29:263
25949985,2cyclictest658-21snmpd11:29:263
25949984,3cyclictest275-21systemd-journal08:45:003
25919986,1cyclictest24408-21ssh12:25:352
25869985,2cyclictest658-21snmpd11:25:531
25869985,2cyclictest658-21snmpd11:25:531
25869984,1cyclictest22-21ksoftirqd/108:00:001
25869983,4cyclictest909-21ssh09:15:121
25869981,4cyclictest999-21sh09:35:001
25829984,3cyclictest275-21systemd-journal08:39:280
23341280,0sleep30-21swapper/310:27:093
25949976,1cyclictest30822-21ssh11:30:343
25949975,1cyclictest5709-21ssh10:16:133
25949973,3cyclictest658-21snmpd08:04:093
25949973,3cyclictest12326-21ssh11:20:123
25949972,4cyclictest9738-21sshd07:23:263
25949971,4cyclictest275-21systemd-journal10:24:373
25919976,1cyclictest28-21ksoftirqd/211:55:002
25919975,1cyclictest28-21ksoftirqd/208:00:002
25919974,2cyclictest275-21systemd-journal11:02:222
25919974,2cyclictest275-21systemd-journal10:04:372
25919973,3cyclictest504-21dbus-daemon09:31:402
25919973,3cyclictest275-21systemd-journal08:37:482
25919972,3cyclictest275-21systemd-journal11:09:052
25919970,1cyclictest16891-21ssh11:22:332
25869974,2cyclictest275-21systemd-journal07:15:011
25869973,3cyclictest674-21lldpd10:39:361
25869973,3cyclictest17596-21ssh12:02:051
25869973,1cyclictest0-21swapper/109:48:121
25869970,4cyclictest22391-21munin-run09:05:001
25829974,2cyclictest12-21ksoftirqd/009:00:000
25829973,3cyclictest658-21snmpd12:31:040
25829973,3cyclictest560-21gdbus10:55:000
25829972,3cyclictest275-21systemd-journal07:43:270
9800260,0sleep00-21swapper/011:57:230
9632260,0sleep20-21swapper/212:36:342
25949966,0cyclictest0-21swapper/311:16:363
25949965,1cyclictest34-21ksoftirqd/311:00:013
25949963,2cyclictest5780-21expr11:55:113
25949963,2cyclictest25319-21ssh09:49:443
25949963,2cyclictest1999-21/usr/sbin/munin09:35:133
25949963,2cyclictest14076-21cat12:40:003
25949963,2cyclictest13142-1kworker/u9:210:46:253
25949963,2cyclictest12191-21rm11:39:523
25949963,2cyclictest0-21swapper/309:32:543
25949963,1cyclictest0-21swapper/311:03:183
25949963,1cyclictest0-21swapper/310:05:093
25949963,1cyclictest0-21swapper/309:29:113
25949962,3cyclictest658-21snmpd12:03:153
25949962,3cyclictest658-21snmpd09:06:033
25949962,3cyclictest658-21snmpd08:05:583
25949962,3cyclictest504-21dbus-daemon09:50:183
25949962,3cyclictest4961-21fschecks_count07:15:023
25949962,3cyclictest275-21systemd-journal09:41:403
25949962,3cyclictest27020-21expr10:10:123
25949962,3cyclictest2197-21chrt12:32:103
25949962,3cyclictest14416-21cat08:45:143
25949962,3cyclictest13683-21seq10:40:453
25949962,3cyclictest12365-21apt-get07:30:113
25949962,2cyclictest275-21systemd-journal10:33:583
25949962,1cyclictest0-21swapper/312:27:353
25949962,1cyclictest0-21swapper/312:21:083
25949962,1cyclictest0-21swapper/312:12:563
25949960,6cyclictest0-21swapper/310:37:383
25949960,6cyclictest0-21swapper/309:17:233
25949960,5cyclictest9508-21expr09:20:123
25949960,2cyclictest8402-21sed08:30:203
25949960,0cyclictest0-21swapper/312:06:243
25949960,0cyclictest0-21swapper/311:43:473
25919963,2cyclictest7258-21ssh10:37:092
25919963,2cyclictest4934-21sh10:15:382
25919963,2cyclictest3565-21/usr/sbin/munin10:55:132
25919963,2cyclictest32358-21ssh12:30:252
25919963,2cyclictest31429-21ssh12:10:182
25919963,2cyclictest275-21systemd-journal11:29:072
25919963,2cyclictest275-21systemd-journal11:29:072
25919963,2cyclictest275-21systemd-journal10:50:582
25919963,2cyclictest27464-21cat10:10:142
25919963,2cyclictest24893-21ssh10:08:562
25919963,2cyclictest23456-21ssh10:47:032
25919963,2cyclictest20852-21taskset07:47:152
25919963,2cyclictest0-21swapper/210:20:352
25919963,1cyclictest0-21swapper/210:40:052
25919963,1cyclictest0-21swapper/209:46:032
25919962,3cyclictest658-21snmpd09:57:242
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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