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2026-06-28 - 06:23
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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 rackbslot7.osadl.org (updated Sun Jun 28, 2026 00:44:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1353221319,55sleep213555-21irqstats18:53:412
146859911630,44cyclictest0-21swapper/020:23:230
146859911630,44cyclictest0-21swapper/020:23:230
146859911597,10cyclictest3441-21runrttasks23:08:300
146859911446,57cyclictest0-21swapper/019:04:400
14685991143,69cyclictest19858-21/usr/sbin/munin21:48:430
14685991113,67cyclictest2983-21runrttasks21:18:470
14685991113,67cyclictest2983-21runrttasks21:18:470
14685991103,58cyclictest21020-21modprobe23:38:090
14696991094,35cyclictest31399-21apt-get19:48:362
146859910723,65cyclictest0-21swapper/023:53:380
146859910723,65cyclictest0-21swapper/023:53:380
14685991063,71cyclictest18829-21sendmail-msp20:48:100
146969910557,41cyclictest352-21runrttasks22:34:042
146859910531,56cyclictest0-21swapper/022:23:280
146859910520,61cyclictest19098-21rm21:46:580
14696991043,40cyclictest10988-21grep00:13:482
14685991043,70cyclictest12963-21rm21:36:310
14685991043,70cyclictest12963-21rm21:36:310
146859910415,58cyclictest7830-21date21:28:140
146859910328,45cyclictest0-21swapper/023:29:020
14685991032,52cyclictest0-21swapper/021:53:480
14685991024,89cyclictest14686-21cat18:58:150
14685991023,64cyclictest22324-21grep23:38:460
146859910235,60cyclictest0-21swapper/019:28:120
146969910151,43cyclictest30225-21fschecks_count19:43:322
14685991013,75cyclictest21974-21/usr/sbin/munin19:18:350
14685991013,69cyclictest352-21runrttasks21:07:150
14685991013,69cyclictest352-21runrttasks21:07:150
14685991013,65cyclictest28177-21ls19:38:100
146859910122,53cyclictest0-21swapper/022:43:460
146859910118,52cyclictest0-21swapper/023:48:170
146969910048,44cyclictest0-21swapper/223:43:472
146969910048,44cyclictest0-21swapper/223:43:472
146969910032,13cyclictest0-21swapper/221:13:122
14685991003,57cyclictest2113-21modprobe22:13:100
14685991003,57cyclictest2113-21modprobe22:13:100
146859910016,67cyclictest17357-21sh00:24:520
146859910016,52cyclictest7637-21sh22:22:000
146859910016,52cyclictest7637-21sh22:22:000
1468999993,74cyclictest27694-21sh23:48:431
1468599997,54cyclictest0-21swapper/021:58:310
1468599997,54cyclictest0-21swapper/021:58:310
14685999938,55cyclictest0-21swapper/019:48:110
1468599993,68cyclictest6568-21taskset23:13:310
1468599993,63cyclictest26298-21latency_hist22:53:130
1468599993,58cyclictest9920-21ssh21:31:210
1468599993,55cyclictest26603-21unin-run19:33:110
1468599992,61cyclictest9651-21fschecks_time23:18:320
1468599992,61cyclictest9651-21fschecks_time23:18:320
14685999924,58cyclictest0-21swapper/000:03:260
14685999924,58cyclictest0-21swapper/000:03:260
14696999834,13cyclictest0-21swapper/223:08:152
14696999834,12cyclictest0-21swapper/223:13:122
14696999831,12cyclictest0-21swapper/200:23:402
14696999817,29cyclictest25617-21cat19:28:372
1468599983,89cyclictest0-21swapper/022:58:210
1468599983,89cyclictest0-21swapper/022:58:210
1468599983,62cyclictest1460-21uname23:58:370
1468599983,60cyclictest0-21swapper/023:43:440
1468599983,60cyclictest0-21swapper/023:43:440
14685999814,66cyclictest20494-21date20:53:120
1469699974,34cyclictest14101-21fschecks_count21:38:322
1469699972,38cyclictest5210-21grep20:03:462
1468599973,55cyclictest9809-21latency_hist00:13:120
1469699964,36cyclictest22863-21/usr/sbin/munin21:53:322
14696999635,13cyclictest0-21swapper/221:28:282
1469699963,38cyclictest9026-21modprobe23:18:092
1469699963,35cyclictest22650-21latency_hist21:53:122
1468599964,57cyclictest0-21swapper/021:41:520
1468599963,62cyclictest17626-21apt-get22:38:240
14685999631,55cyclictest0-21swapper/020:18:320
1469699953,39cyclictest2374-21systemd-journal22:06:152
1469699953,38cyclictest28324-21grep23:49:232
1469699953,36cyclictest1863-21/usr/sbin/munin21:18:432
1469699953,36cyclictest1863-21/usr/sbin/munin21:18:432
1469699953,35cyclictest14972-21mailstats20:34:402
14685999537,51cyclictest0-21swapper/019:13:130
1468599953,62cyclictest12737-21taskset23:23:350
14685999533,53cyclictest0-21swapper/022:35:120
14685999530,58cyclictest0-21swapper/022:03:250
1468599952,49cyclictest0-21swapper/021:15:500
1469699947,38cyclictest352-21runrttasks19:09:042
1469699943,40cyclictest32134-21fschecks_count22:08:322
1469699943,40cyclictest32134-21fschecks_count22:08:322
1469699943,38cyclictest7547-21cpu20:13:262
1469699943,37cyclictest23456-21latency_hist22:48:132
1469699943,26cyclictest352-21runrttasks22:02:302
1469699943,26cyclictest352-21runrttasks22:02:302
1469699942,36cyclictest12579-21fschecks_count20:28:322
1468599948,51cyclictest0-21swapper/023:08:120
1468599943,57cyclictest12011-21ntp_states22:28:400
1468599943,56cyclictest13434-21memory00:18:380
1468599943,53cyclictest12638-21perl20:28:330
1468599943,52cyclictest0-21swapper/019:03:140
1468599943,52cyclictest0-21swapper/019:03:140
1468599942,62cyclictest29004-21sh21:08:420
1468599942,57cyclictest21731-21awk19:18:100
1468599942,55cyclictest22891-21ssh20:58:380
14685999416,47cyclictest10989-21tail00:13:480
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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