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2026-06-28 - 20:15
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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 Jun 28, 2026 12:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
155712275245,20sleep10-21swapper/107:08:241
154892266237,19sleep20-21swapper/207:07:202
156612264233,21sleep00-21swapper/007:09:300
154852264230,21sleep30-21swapper/307:07:173
264892630,0sleep10-21swapper/107:30:181
36462620,0sleep10-21swapper/109:47:471
94312600,0sleep10-21swapper/112:27:111
316742570,0sleep20-21swapper/211:41:482
221122570,0sleep20-21swapper/210:57:512
56942560,0sleep30-21swapper/311:07:093
217112560,0sleep30-21swapper/310:18:403
269782540,0sleep00-21swapper/007:30:200
217012520,0sleep10-21swapper/110:38:081
198112190,0sleep00-21swapper/009:57:360
299892180,0chrt0-21swapper/011:02:310
83352150,0sleep20-21swapper/212:06:592
326082150,0sleep00-21swapper/010:25:140
268372150,0sleep00-21swapper/010:40:440
25352140,0sleep12537-21rm10:26:081
286032130,0sleep30-21swapper/311:40:143
282182130,0sleep00-21swapper/009:43:050
5362120,0sleep20-21swapper/209:45:242
1582099110,3cyclictest275-21systemd-journal11:50:001
1582099110,2cyclictest26996-21timerwakeupswit11:00:201
1582099110,2cyclictest22691-21gltestperf08:35:191
1582099110,2cyclictest22497-21cstates09:20:111
63532100,0sleep30-21swapper/310:29:053
1582799106,3cyclictest658-21snmpd11:48:373
1582799105,4cyclictest2359-21ssh11:24:503
1582099100,2cyclictest275-21systemd-journal09:00:001
1582099100,2cyclictest275-21systemd-journal07:55:001
1582099100,2cyclictest14590-21timerandwakeup08:15:201
1582099100,2cyclictest13357-21sh10:52:311
1582099100,2cyclictest11856-21diskmemload09:13:391
1582099100,1cyclictest28322-21ssh09:43:101
1582099100,1cyclictest15046-21ssh10:14:561
1582099100,1cyclictest10312-21sed08:05:201
456290,0sleep10-21swapper/111:23:261
158279994,3cyclictest275-21systemd-journal09:29:363
158249998,1cyclictest28-21ksoftirqd/208:20:012
158249992,4cyclictest1425-21cron08:25:012
158209993,5cyclictest658-21snmpd10:40:201
158209992,2cyclictest28269-21date12:00:001
158209992,2cyclictest15188-21head09:35:131
158209992,1cyclictest491-21systemd-logind10:48:081
158209992,1cyclictest30729-21hddtemp_smartct07:40:141
158209991,3cyclictest1575-21ssh11:05:121
158209991,2cyclictest275-21systemd-journal10:55:401
158209990,3cyclictest8023-21/usr/sbin/munin09:50:161
158209990,3cyclictest504-21dbus-daemon12:15:001
158209990,3cyclictest29364-21gltestperf08:50:111
158209990,3cyclictest28824-21munin-run12:20:001
158209990,3cyclictest275-21systemd-journal09:30:221
158209990,3cyclictest24633-21sh12:36:091
158209990,3cyclictest19022-21uniq11:15:141
158209990,3cyclictest15153-21ntp_states09:15:171
158209990,3cyclictest12580-21grep08:10:211
158209990,3cyclictest12222-21grep11:50:111
158209990,2cyclictest5371-21diskmemload10:21:241
158209990,2cyclictest3023-21ssh09:27:471
158209990,2cyclictest275-21systemd-journal09:00:141
158209990,2cyclictest275-21systemd-journal08:40:101
158209990,2cyclictest275-21systemd-journal08:30:011
158209990,2cyclictest275-21systemd-journal07:14:511
158209990,2cyclictest17463-21idleruntime-cro08:25:011
158209990,2cyclictest13080-21tail11:30:221
158209990,1cyclictest304-21systemd-udevd07:35:171
1702280,1sleep21679-21ssh11:05:122
158279985,2cyclictest34-21ksoftirqd/307:50:023
158249987,1cyclictest28-21ksoftirqd/211:05:002
158209982,2cyclictest20176-21fschecks_count11:35:121
158209982,1cyclictest15109-21ssh09:55:091
158209981,1cyclictest0-21swapper/108:45:121
158209980,3cyclictest9083-21chrt12:07:341
158209980,3cyclictest7215-21sed08:00:131
158209980,3cyclictest32368-21uname10:05:161
158209980,3cyclictest29475-21memory12:00:161
158209980,3cyclictest27916-21sh11:40:061
158209980,3cyclictest21475-21grep08:30:211
158209980,3cyclictest14732-21ssh11:12:311
158209980,3cyclictest13479-21ssh12:30:081
158209980,2cyclictest5390-21sh11:25:481
158209980,2cyclictest5390-21sh11:25:471
158209980,2cyclictest491-21systemd-logind10:30:091
158209980,2cyclictest3822-21fschecks_count09:05:141
158209980,2cyclictest29989-21/usr/sbin/munin12:20:121
158209980,2cyclictest23997-21expr10:00:151
158209980,2cyclictest22078-21ntp_states07:20:181
158209980,2cyclictest18533-21fschecks_time07:15:011
158209980,2cyclictest16381-21/usr/sbin/munin10:15:151
158209980,1cyclictest6312-21sendmail08:00:001
158209980,1cyclictest275-21systemd-journal07:29:541
158209980,1cyclictest275-21systemd-journal07:29:541
158279974,2cyclictest6910-21latency_hist10:10:003
158279974,2cyclictest275-21systemd-journal09:35:013
158279973,3cyclictest658-21snmpd10:22:463
158279973,3cyclictest560-21gdbus11:59:593
158279973,3cyclictest504-21dbus-daemon08:40:013
158279973,3cyclictest396-21apt-get10:45:123
158279973,3cyclictest2778-21sshd09:00:243
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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