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2026-04-11 - 17:27
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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 highest latencies:
System rackaslot8.osadl.org (updated Sat Apr 11, 2026 12:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
244102303276,17sleep20-21swapper/207:09:442
243362270240,20sleep10-21swapper/107:08:471
243472267234,22sleep00-21swapper/007:08:540
243452260229,20sleep30-21swapper/307:08:533
119282590,0sleep10-21swapper/111:25:171
108712580,0sleep00-21swapper/009:46:220
309782560,0sleep30-21swapper/312:35:543
147662560,0sleep10-21swapper/111:46:391
149082550,0sleep30-21swapper/310:08:433
195962520,0sleep20-21swapper/212:29:482
104932180,1sleep310495-21fschecks_time10:45:153
312832170,0sleep00-21swapper/007:20:180
15862170,0sleep012-21ksoftirqd/012:38:150
14202170,0sleep30-21swapper/310:40:103
44682160,0sleep30-21swapper/311:20:223
149972160,1sleep30-21swapper/311:27:113
8092140,0sleep00-21swapper/009:20:260
36722140,0sleep30-21swapper/309:42:073
324462130,0sleep30-21swapper/311:57:383
285102130,0sleep00-21swapper/011:55:150
208122120,0sleep10-21swapper/108:10:161
23502110,0sleep00-21swapper/012:19:090
8668290,0sleep30-21swapper/309:45:173
245479990,8cyclictest8382-21chrt11:23:262
245449998,1cyclictest22-21ksoftirqd/111:45:001
245449992,4cyclictest14422-21awk09:10:001
31051280,0sleep20-21swapper/212:35:572
245519988,0cyclictest18455-21kworker/3:011:47:333
245479983,4cyclictest504-21dbus-daemon08:00:012
245449983,3cyclictest275-21systemd-journal07:55:011
21310280,0sleep00-21swapper/010:51:240
8759270,0sleep30-21swapper/312:22:453
25721270,0sleep20-21swapper/209:16:002
25461270,0sleep30-21swapper/311:33:563
245519975,1cyclictest19485-21turbostat.cron12:10:003
245519974,2cyclictest923-21sshd09:20:313
245519973,3cyclictest658-21snmpd08:04:063
245519973,3cyclictest304-21systemd-udevd07:32:363
245519973,3cyclictest275-21systemd-journal09:06:503
245519973,3cyclictest25279-21apt-get10:15:133
245519973,3cyclictest25279-21apt-get10:15:133
245519973,3cyclictest18359-21perl08:05:153
245519973,2cyclictest14954-21cat09:10:113
245519972,2cyclictest22796-21ssh12:30:543
245479976,1cyclictest14411-21diskmemload10:57:202
245479973,3cyclictest275-21systemd-journal09:01:442
245479972,3cyclictest658-21snmpd10:27:462
245479971,5cyclictest4536-21tr07:35:122
245449973,3cyclictest275-21systemd-journal11:34:101
245449973,3cyclictest275-21systemd-journal10:03:121
245409976,1cyclictest12-21ksoftirqd/009:10:000
245409974,2cyclictest658-21snmpd09:35:080
245409973,3cyclictest275-21systemd-journal12:06:010
245409973,3cyclictest275-21systemd-journal08:10:210
245409971,3cyclictest6472-21turbostat07:40:010
15949270,0sleep20-21swapper/211:08:162
14522270,0sleep30-21swapper/311:07:093
5279260,0sleep20-21swapper/211:40:392
31150260,0sleep10-21swapper/111:36:581
245519966,0cyclictest0-21swapper/310:20:213
245519963,2cyclictest663-21runrttasks07:44:043
245519963,2cyclictest658-21snmpd10:28:223
245519963,2cyclictest658-21snmpd08:50:073
245519963,2cyclictest3428-21rm12:00:063
245519963,2cyclictest32027-21taskset11:18:003
245519963,2cyclictest31508-21ssh10:38:333
245519963,2cyclictest304-21systemd-udevd07:48:363
245519963,2cyclictest304-21systemd-udevd07:38:363
245519963,2cyclictest28447-21cat12:15:133
245519963,2cyclictest275-21systemd-journal09:25:323
245519963,2cyclictest26036-21wc09:55:213
245519963,2cyclictest21426-21ssh10:32:053
245519963,2cyclictest17284-21ssh09:30:313
245519963,2cyclictest16675-21expr09:50:143
245519963,2cyclictest13151-21ntpq12:25:163
245519963,2cyclictest10618-21diskstats09:00:133
245519962,3cyclictest658-21snmpd12:10:213
245519962,3cyclictest658-21snmpd11:50:363
245519962,3cyclictest658-21snmpd11:38:173
245519962,3cyclictest658-21snmpd11:12:023
245519962,3cyclictest658-21snmpd11:04:323
245519962,3cyclictest658-21snmpd10:00:573
245519962,3cyclictest658-21snmpd08:55:013
245519962,3cyclictest658-21snmpd08:47:553
245519962,3cyclictest658-21snmpd08:35:333
245519962,3cyclictest658-21snmpd08:27:453
245519962,3cyclictest658-21snmpd07:57:083
245519962,3cyclictest658-21snmpd07:52:263
245519962,3cyclictest658-21snmpd07:24:193
245519962,3cyclictest658-21snmpd07:16:223
245519962,3cyclictest26701-21cat10:55:133
245519962,3cyclictest21018-21ntpq08:10:173
245519962,2cyclictest674-21lldpd08:41:583
245519961,4cyclictest17975-21cat10:10:163
245519960,6cyclictest0-21swapper/310:51:373
245479966,0cyclictest0-21swapper/211:14:322
245479966,0cyclictest0-21swapper/210:40:292
245479964,2cyclictest501-21in:imuxsock08:55:002
245479963,2cyclictest9836-21ssh12:23:362
245479963,2cyclictest9195-21cron10:45:012
245479963,2cyclictest658-21snmpd11:31:142
245479963,2cyclictest658-21snmpd09:50:122
245479963,2cyclictest658-21snmpd09:42:292
245479963,2cyclictest658-21snmpd08:20:092
245479963,2cyclictest658-21snmpd08:20:092
245479963,2cyclictest504-21dbus-daemon12:10:192
245479963,2cyclictest479-21ssh10:00:082
245479963,2cyclictest4145-21hddtemp_smartct08:45:142
245479963,2cyclictest32552-21rm12:17:252
245479963,2cyclictest31776-21taskset07:20:592
245479963,2cyclictest31015-21sh09:59:042
245479963,2cyclictest28-21ksoftirqd/212:05:182
245479963,2cyclictest275-21systemd-journal11:27:542
245479963,2cyclictest275-21systemd-journal07:45:182
245479963,2cyclictest19120-21sshd10:10:362
245479963,1cyclictest0-21swapper/211:03:522
245479962,3cyclictest658-21snmpd11:55:242
245479962,3cyclictest658-21snmpd11:50:092
245479962,3cyclictest658-21snmpd11:17:022
245479962,3cyclictest658-21snmpd09:45:572
245479962,3cyclictest658-21snmpd09:30:112
245479962,3cyclictest658-21snmpd09:25:552
245479962,3cyclictest658-21snmpd08:58:432
245479962,3cyclictest658-21snmpd07:41:472
245479962,3cyclictest658-21snmpd07:10:132
245479962,3cyclictest504-21dbus-daemon09:05:182
245479962,3cyclictest28073-21tr07:15:132
245479962,3cyclictest24586-21cat09:35:152
245479962,3cyclictest11839-21cat07:50:172
245479962,2cyclictest275-21systemd-journal07:28:262
245479962,1cyclictest14802-1kworker/u9:210:20:112
245479960,6cyclictest0-21swapper/210:51:402
245479960,6cyclictest0-21swapper/209:10:232
245479960,3cyclictest5217-21unixbench_singl12:00:192
245479960,3cyclictest11596-21cstates11:45:132
245479960,0cyclictest0-21swapper/210:17:452
245479960,0cyclictest0-21swapper/210:17:452
245449966,0cyclictest0-21swapper/110:13:061
245449964,2cyclictest22-21ksoftirqd/107:25:011
245449964,1cyclictest9312-21grep10:05:141
245449964,1cyclictest22-21ksoftirqd/107:40:011
245449964,1cyclictest0-21swapper/109:30:191
245449963,2cyclictest674-21lldpd09:54:081
245449963,2cyclictest6615-21ssh10:23:211
245449963,2cyclictest658-21snmpd09:01:221
245449963,2cyclictest504-21dbus-daemon12:18:511
245449963,2cyclictest504-21dbus-daemon07:12:411
245449963,2cyclictest29613-21sh10:56:271
245449963,2cyclictest28421-21tune2fs07:15:151
245449963,2cyclictest275-21systemd-journal12:00:001
245449963,2cyclictest25992-21sendmail_mailst08:20:201
245449963,2cyclictest25992-21sendmail_mailst08:20:191
245449963,2cyclictest21060-21cat12:30:141
245449963,2cyclictest20083-21cat12:10:131
245449963,2cyclictest18567-11brltty10:18:371
245449963,2cyclictest18567-11brltty10:18:361
245449963,1cyclictest0-21swapper/110:33:151
245449962,3cyclictest9543-21head09:45:211
245449962,3cyclictest658-21snmpd11:19:051
245449962,3cyclictest658-21snmpd09:39:321
245449962,3cyclictest658-21snmpd09:18:281
245449962,3cyclictest658-21snmpd08:41:091
245449962,3cyclictest658-21snmpd08:37:031
245449962,3cyclictest658-21snmpd08:20:001
245449962,3cyclictest658-21snmpd07:30:051
245449962,3cyclictest32463-21expr09:40:131
245449962,3cyclictest29276-21cat12:35:161
245449962,3cyclictest25707-21awk09:55:191
245449962,3cyclictest19906-21expr11:50:131
245449962,3cyclictest16052-21which09:10:171
245449962,3cyclictest13102-21sensors_temp12:05:191
245449960,6cyclictest0-21swapper/110:45:271
245449960,6cyclictest0-21swapper/110:25:151
245449960,5cyclictest19014-21systemctl08:05:201
245449960,0cyclictest0-21swapper/112:00:311
245449960,0cyclictest0-21swapper/111:10:431
245449960,0cyclictest0-21swapper/111:01:201
245449960,0cyclictest0-21swapper/109:23:391
245409965,1cyclictest12-21ksoftirqd/007:15:010
245409964,1cyclictest2632-21munin-plugin-st11:40:000
245409963,2cyclictest6463-21ssh09:44:200
245409963,2cyclictest504-21dbus-daemon10:47:240
245409963,2cyclictest31731-21ssh10:19:030
245409963,2cyclictest31731-21ssh10:19:030
245409963,2cyclictest275-21systemd-journal11:15:540
245409963,2cyclictest275-21systemd-journal08:35:260
245409963,2cyclictest275-21systemd-journal07:26:520
245409963,2cyclictest15409-21ssh10:09:070
245409963,2cyclictest10684-21cstates11:05:130
245409963,1cyclictest663-21runrttasks10:10:120
245409962,3cyclictest658-21snmpd12:27:160
245409962,3cyclictest658-21snmpd11:31:590
245409962,3cyclictest658-21snmpd11:25:230
245409962,3cyclictest658-21snmpd10:32:160
245409962,3cyclictest658-21snmpd08:50:190
245409962,3cyclictest658-21snmpd08:44:090
245409962,3cyclictest658-21snmpd08:33:480
245409962,3cyclictest658-21snmpd08:25:030
245409962,3cyclictest658-21snmpd08:15:360
245409962,3cyclictest658-21snmpd07:59:440
245409962,3cyclictest658-21snmpd07:47:560
245409962,3cyclictest658-21snmpd07:13:550
245409962,3cyclictest3840-21cat11:40:140
245409962,3cyclictest3062-21cat11:00:170
245409962,3cyclictest275-21systemd-journal11:45:510
245409962,3cyclictest275-21systemd-journal08:20:180
245409962,3cyclictest275-21systemd-journal08:20:180
245409962,3cyclictest27166-21cat10:55:150
245409962,3cyclictest25492-21cat09:55:170
245409962,3cyclictest19169-21expr08:05:210
245409962,3cyclictest16077-21gdbus09:50:010
245409962,3cyclictest10902-21cat09:00:150
245409962,2cyclictest275-21systemd-journal12:10:540
245409962,1cyclictest0-21swapper/012:30:530
245409962,1cyclictest0-21swapper/011:50:150
245409962,1cyclictest0-21swapper/010:04:380
245409962,1cyclictest0-21swapper/009:33:290
245409961,4cyclictest0-21swapper/009:25:110
245409960,6cyclictest0-21swapper/011:20:200
245409960,6cyclictest0-21swapper/010:25:220
245519952,2cyclictest658-21snmpd08:20:333
245519952,2cyclictest658-21snmpd08:20:333
245519952,2cyclictest29448-21cut08:30:143
245519952,2cyclictest23327-21cut09:15:133
245519952,2cyclictest22895-21hwlatdetect08:15:163
245519952,2cyclictest14802-1kworker/u9:209:35:023
245519951,3cyclictest658-21snmpd11:40:083
245519951,3cyclictest25008-21expr07:10:133
245519950,3cyclictest275-21systemd-journal07:25:123
245479953,1cyclictest20816-21fschecks_time12:30:132
245479952,2cyclictest9895-21open_files10:05:172
245479952,2cyclictest658-21snmpd08:11:422
245479952,2cyclictest31786-21cat08:35:142
245479952,2cyclictest31376-21awk09:20:122
245479952,2cyclictest28923-21unixbench_multi11:35:192
245479952,2cyclictest22587-21cat08:15:142
245479952,2cyclictest1938-21/usr/sbin/munin08:40:152
245479952,2cyclictest18518-21cat08:05:162
245479952,2cyclictest15821-21expr08:00:142
245479952,1cyclictest0-21swapper/210:35:012
245479951,3cyclictest658-21snmpd08:30:062
245479951,3cyclictest2820-21cat07:30:152
245479951,3cyclictest27763-21/usr/sbin/munin08:25:142
245479951,3cyclictest17874-21ssh10:30:142
245449953,1cyclictest4985-21grep12:20:171
245449952,2cyclictest7519-21seq08:52:271
245449952,2cyclictest4309-21grep08:45:161
245449952,2cyclictest29955-21cat08:30:161
245449952,2cyclictest28638-21sshd08:25:221
245449952,2cyclictest275-21systemd-journal07:28:571
245449952,2cyclictest26011-21expr10:35:131
245449952,2cyclictest15928-21expr08:00:141
245449952,2cyclictest12334-21cat12:25:121
245449952,2cyclictest10345-21sh11:05:081
245449952,1cyclictest0-21swapper/110:40:041
245449951,3cyclictest8362-21cat08:55:121
245449951,3cyclictest2460-21ssh11:20:021
245449951,3cyclictest211rcuc/107:40:121
245449951,3cyclictest13383-21/usr/sbin/munin07:55:131
245449950,4cyclictest7137-21ssh09:25:111
245449950,4cyclictest18454-21expr10:50:131
245449950,3cyclictest9555-21sshd07:45:151
245409952,2cyclictest6803-21cpuspeed07:40:130
245409952,2cyclictest658-21snmpd09:15:040
245409952,2cyclictest658-21snmpd08:55:040
245409952,2cyclictest658-21snmpd08:45:060
245409952,2cyclictest4341-21taskset12:00:140
245409952,2cyclictest4201-21seq12:20:140
245409952,2cyclictest25436-21ssh10:35:030
245409952,2cyclictest17325-21taskset08:01:420
245409952,2cyclictest1379-21sh10:40:080
245409952,2cyclictest11170-21cat07:50:140
245409952,2cyclictest0-21swapper/010:20:140
245409951,3cyclictest15100-21cat09:10:120
245409950,4cyclictest3424-21cat07:30:190
245409950,4cyclictest18620-21/usr/sbin/munin11:10:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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