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2026-06-19 - 01:28
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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 376 highest latencies:
System rackaslot8.osadl.org (updated Thu Jun 18, 2026 12:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
283022307281,17sleep20-21swapper/207:10:012
283022307281,17sleep20-21swapper/207:10:002
281382274242,21sleep10-21swapper/107:08:101
281382274242,21sleep10-21swapper/107:08:101
282292271216,19sleep30-21swapper/307:09:213
282292271216,19sleep30-21swapper/307:09:213
282642263230,20sleep00-21swapper/007:09:420
282642263230,20sleep00-21swapper/007:09:420
128092650,2sleep012801-21ntp_kernel_err11:20:150
120422640,0sleep30-21swapper/310:03:143
256212610,1sleep125618-21ssh12:05:451
267632590,0sleep326764-21sh09:52:533
3852570,0sleep20-21swapper/211:50:442
233902560,0sleep30-21swapper/312:24:303
207412550,0sleep10-21swapper/109:30:121
16682540,0sleep20-21swapper/209:37:582
152742540,0sleep10-21swapper/111:02:381
64712530,0sleep20-21swapper/211:16:212
116172160,0sleep00-21swapper/011:39:060
295332150,0sleep20-21swapper/210:32:202
240622140,0sleep00-21swapper/009:50:510
68232130,0sleep10-21swapper/109:40:291
269622130,0sleep20-21swapper/212:06:472
284009994,3cyclictest275-21systemd-journal11:40:321
284129983,4cyclictest25624-21sshd12:05:453
284079984,3cyclictest16798-21sshd10:25:132
284009987,1cyclictest22-21ksoftirqd/111:40:001
284009986,1cyclictest22-21ksoftirqd/111:35:001
284009985,2cyclictest22-21ksoftirqd/108:30:011
283989984,3cyclictest275-21systemd-journal12:05:450
283989983,2cyclictest275-21systemd-journal12:35:280
283989982,3cyclictest16067-21dump-pmu-power09:05:010
283989980,0cyclictest141rcu_preempt09:15:110
284129974,2cyclictest31000-21ssh10:33:283
284129973,3cyclictest658-21snmpd07:44:123
284129973,3cyclictest658-21snmpd07:32:123
284129973,3cyclictest5315-21tune2fs09:40:133
284129973,3cyclictest275-21systemd-journal11:14:163
284129973,1cyclictest0-21swapper/311:26:193
284129973,1cyclictest0-21swapper/310:58:393
284129972,4cyclictest22370-21ssh09:30:273
284129970,7cyclictest0-21swapper/311:51:103
284079976,1cyclictest28-21ksoftirqd/209:20:002
284079976,1cyclictest18154-21ssh12:01:262
284079973,3cyclictest275-21systemd-journal10:17:022
284079973,2cyclictest275-21systemd-journal09:45:062
284079970,6cyclictest275-21systemd-journal08:45:152
284079970,1cyclictest29594-21munin-run09:55:012
284009973,3cyclictest658-21snmpd08:47:141
284009973,3cyclictest658-21snmpd08:05:221
284009973,3cyclictest658-21snmpd07:57:341
284009973,3cyclictest560-21gdbus09:15:011
284009973,3cyclictest275-21systemd-journal11:10:311
284009973,3cyclictest16295-21awk10:25:011
284009970,4cyclictest7219-21awk12:15:001
283989976,1cyclictest12-21ksoftirqd/011:20:010
283989973,3cyclictest658-21snmpd09:27:450
283989973,3cyclictest275-21systemd-journal09:13:410
7288260,0sleep20-21swapper/208:45:002
284129966,0cyclictest0-21swapper/311:06:543
284129966,0cyclictest0-21swapper/307:59:593
284129963,3cyclictest11301-21kworker/3:011:56:153
284129963,2cyclictest937-21ssh10:35:053
284129963,2cyclictest658-21snmpd12:28:503
284129963,2cyclictest34-21ksoftirqd/309:45:113
284129963,2cyclictest31144-21awk09:55:173
284129963,2cyclictest28772-21ssh11:49:033
284129963,2cyclictest22357-21ssh09:11:443
284129963,2cyclictest16295-21ssh11:41:143
284129963,1cyclictest0-21swapper/312:32:253
284129963,1cyclictest0-21swapper/310:40:333
284129963,1cyclictest0-21swapper/309:22:183
284129962,3cyclictest997-21expr08:30:113
284129962,3cyclictest9783-21cat12:35:123
284129962,3cyclictest8219-21memory08:45:163
284129962,3cyclictest658-21snmpd12:11:293
284129962,3cyclictest658-21snmpd11:02:363
284129962,3cyclictest658-21snmpd10:51:573
284129962,3cyclictest658-21snmpd10:22:383
284129962,3cyclictest658-21snmpd07:47:553
284129962,3cyclictest658-21snmpd07:22:273
284129962,3cyclictest658-21snmpd07:12:403
284129962,3cyclictest504-21dbus-daemon11:25:023
284129962,3cyclictest491-21systemd-logind09:28:173
284129962,3cyclictest30055-21cat11:30:203
284129962,3cyclictest275-21systemd-journal08:19:033
284129962,3cyclictest17002-21cat10:25:153
284129962,3cyclictest13026-21mailstats08:55:183
284129962,3cyclictest0-21swapper/311:36:093
284129962,1cyclictest0-21swapper/312:01:233
284129962,1cyclictest0-21swapper/310:16:103
284129962,1cyclictest0-21swapper/310:11:123
284129962,1cyclictest0-21swapper/310:07:203
284129962,1cyclictest0-21swapper/309:35:513
284129961,3cyclictest275-21systemd-journal09:15:013
284129961,3cyclictest275-21systemd-journal08:50:163
284129960,6cyclictest0-21swapper/312:15:363
284129960,6cyclictest0-21swapper/308:20:033
284129960,6cyclictest0-21swapper/307:29:543
284129960,5cyclictest3497-21gltestperf08:35:123
284079966,0cyclictest0-21swapper/211:27:452
284079963,2cyclictest658-21snmpd10:50:452
284079963,2cyclictest658-21snmpd07:24:152
284079963,2cyclictest4903-21cron08:40:012
284079963,2cyclictest3880-21rm12:12:302
284079963,2cyclictest275-21systemd-journal07:16:482
284079963,2cyclictest13914-21ssh11:20:362
284079963,2cyclictest13767-21ssh11:01:312
284079963,2cyclictest11107-21ssh12:35:312
284079963,2cyclictest10361-21wc08:50:142
284079963,1cyclictest0-21swapper/212:25:292
284079963,1cyclictest0-21swapper/210:47:152
284079963,1cyclictest0-21swapper/210:40:512
284079963,1cyclictest0-21swapper/210:10:422
284079962,3cyclictest658-21snmpd11:57:142
284079962,3cyclictest658-21snmpd11:46:552
284079962,3cyclictest658-21snmpd11:36:012
284079962,3cyclictest658-21snmpd11:30:132
284079962,3cyclictest658-21snmpd11:09:472
284079962,3cyclictest658-21snmpd10:39:212
284079962,3cyclictest658-21snmpd09:00:592
284079962,3cyclictest5709-21wc10:00:012
284079962,3cyclictest4252-21cat09:20:152
284079962,3cyclictest29081-21cat08:20:142
284079962,3cyclictest275-21systemd-journal09:15:002
284079962,3cyclictest27293-21find11:10:112
284079962,3cyclictest1208-21ssh12:30:132
284079962,1cyclictest0-21swapper/211:40:532
284079962,1cyclictest0-21swapper/210:05:372
284079960,6cyclictest9902-21ssh10:01:372
284079960,6cyclictest0-21swapper/209:32:082
284079960,3cyclictest30888-21apt07:15:012
284009966,0cyclictest0-21swapper/111:55:521
284009966,0cyclictest0-21swapper/110:30:131
284009963,2cyclictest658-21snmpd12:23:321
284009963,2cyclictest658-21snmpd10:55:071
284009963,2cyclictest658-21snmpd07:23:061
284009963,2cyclictest31249-21sh12:29:021
284009963,2cyclictest275-21systemd-journal07:55:001
284009963,2cyclictest22654-21sh12:04:531
284009963,2cyclictest15465-21expr10:05:141
284009963,2cyclictest13030-21cat07:45:121
284009963,1cyclictest141rcu_preempt10:53:491
284009962,3cyclictest658-21snmpd11:16:431
284009962,3cyclictest658-21snmpd10:46:031
284009962,3cyclictest658-21snmpd10:15:111
284009962,3cyclictest658-21snmpd09:23:091
284009962,3cyclictest658-21snmpd08:30:471
284009962,3cyclictest658-21snmpd08:10:431
284009962,3cyclictest658-21snmpd08:01:311
284009962,3cyclictest658-21snmpd07:10:391
284009962,3cyclictest3624-21cat08:35:131
284009962,3cyclictest31126-21fw_packets11:50:161
284009962,3cyclictest28930-21awk09:35:111
284009962,3cyclictest275-21systemd-journal07:32:471
284009962,3cyclictest20784-21sed11:25:141
284009962,3cyclictest16984-21cat09:05:151
284009962,3cyclictest16984-21cat09:05:151
284009961,4cyclictest9610-21/usr/sbin/munin08:50:181
284009961,3cyclictest275-21systemd-journal08:59:261
284009960,6cyclictest26413-21expr08:15:121
284009960,6cyclictest0-21swapper/112:30:451
284009960,6cyclictest0-21swapper/112:19:411
284009960,6cyclictest0-21swapper/111:20:081
284009960,6cyclictest0-21swapper/110:27:561
284009960,6cyclictest0-21swapper/109:57:591
284009960,6cyclictest0-21swapper/109:45:211
284009960,0cyclictest0-21swapper/109:29:061
283989964,1cyclictest12-21ksoftirqd/011:35:000
283989963,2cyclictest8029-21ssh09:41:240
283989963,2cyclictest7882-21sh11:55:170
283989963,2cyclictest658-21snmpd09:20:570
283989963,2cyclictest5320-21grep08:40:110
283989963,2cyclictest504-21dbus-daemon10:26:450
283989963,2cyclictest31209-21cut08:25:130
283989963,2cyclictest275-21systemd-journal09:35:030
283989963,2cyclictest2636-21sh10:16:190
283989963,2cyclictest25216-21sh10:49:420
283989963,2cyclictest18744-21ssh10:06:420
283989963,2cyclictest1858-21irqstats10:35:150
283989963,2cyclictest11530-21ntpq11:00:160
283989963,2cyclictest11107-21grep07:40:140
283989962,3cyclictest658-21snmpd12:31:020
283989962,3cyclictest658-21snmpd12:22:470
283989962,3cyclictest658-21snmpd11:50:290
283989962,3cyclictest658-21snmpd11:48:190
283989962,3cyclictest658-21snmpd11:26:370
283989962,3cyclictest658-21snmpd11:13:160
283989962,3cyclictest658-21snmpd10:53:300
283989962,3cyclictest658-21snmpd09:05:320
283989962,3cyclictest658-21snmpd09:05:320
283989962,3cyclictest658-21snmpd07:55:280
283989962,3cyclictest658-21snmpd07:51:460
283989962,3cyclictest658-21snmpd07:37:150
283989962,3cyclictest658-21snmpd07:27:180
283989962,3cyclictest658-21snmpd07:10:240
283989962,3cyclictest504-21dbus-daemon07:24:140
283989962,3cyclictest32435-21cat07:15:150
283989962,3cyclictest32271-21expr12:10:150
283989962,3cyclictest275-21systemd-journal10:00:260
283989962,3cyclictest19322-21df_inode11:05:120
283989962,3cyclictest14648-21sshd07:48:500
283989962,3cyclictest12115-21cat08:55:120
283989962,2cyclictest9813-21timerandwakeup10:20:190
283989962,1cyclictest9381-21turbostat08:50:000
283989961,4cyclictest12227-21sh10:41:080
283989961,3cyclictest29291-21rm12:27:330
283989960,6cyclictest0-21swapper/010:57:260
283989960,6cyclictest0-21swapper/009:56:270
283989960,6cyclictest0-21swapper/009:30:340
27143260,0sleep10-21swapper/110:11:411
26267260,3sleep012-21ksoftirqd/008:15:130
10600260,0sleep20-21swapper/210:20:432
284129953,1cyclictest31511-21processes07:15:023
284129953,1cyclictest22772-21proc_pri08:05:173
284129952,3cyclictest11301-21kworker/3:009:00:113
284129952,2cyclictest8492-21cat07:35:133
284129952,2cyclictest658-21snmpd08:40:113
284129952,2cyclictest658-21snmpd08:25:013
284129952,2cyclictest24485-21expr08:10:133
284129952,2cyclictest19439-21taskset08:00:023
284129952,2cyclictest17654-21sh10:45:093
284129952,2cyclictest15001-21sshd07:50:073
284129951,3cyclictest658-21snmpd09:05:143
284129951,3cyclictest658-21snmpd09:05:143
284129950,2cyclictest3301-21sshd11:15:113
284079953,2cyclictest504-21dbus-daemon07:36:442
284079953,1cyclictest658-21snmpd07:50:012
284079952,2cyclictest658-21snmpd09:40:062
284079952,2cyclictest658-21snmpd09:25:092
284079952,2cyclictest658-21snmpd07:45:132
284079952,2cyclictest6444-21fschecks_count07:30:132
284079952,2cyclictest3965-21expr07:25:142
284079952,2cyclictest30788-21cpuspeed_turbos08:25:122
284079952,2cyclictest28-21ksoftirqd/208:15:112
284079952,2cyclictest24818-21cut08:10:152
284079952,2cyclictest17924-21cat07:55:152
284079952,2cyclictest16688-21df09:05:122
284079952,2cyclictest16688-21df09:05:122
284079952,2cyclictest16177-21cat12:20:102
284079952,2cyclictest12523-21cat08:55:142
284079951,3cyclictest7686-21sh12:15:122
284079951,3cyclictest19440-21sshd08:00:032
284079951,3cyclictest1277-21grep08:30:132
284079951,2cyclictest275-21systemd-journal10:55:062
284079950,3cyclictest275-21systemd-journal07:41:442
284079950,3cyclictest21673-21sshd08:05:072
284009955,0cyclictest0-21swapper/109:10:071
284009953,1cyclictest97662sleep112:35:121
284009953,1cyclictest4773-21sh07:25:181
284009953,1cyclictest18288-21diskmemload11:05:131
284009953,1cyclictest1518-21entropy10:35:131
284009952,2cyclictest658-21snmpd07:15:031
284009952,2cyclictest5304-21cpuspeed_turbos08:40:111
284009952,2cyclictest28979-21gltestperf08:20:141
284009952,2cyclictest21792-21cpuspeed_turbos09:50:131
284009952,2cyclictest14090-21chrt09:00:091
284009952,2cyclictest11313-21ssh10:40:251
284009952,2cyclictest10563-21sshd07:40:061
284009951,3cyclictest8436-21tr07:35:141
284009950,4cyclictest6853-21diskstats10:00:141
284009950,4cyclictest22046-21sh11:45:111
283989953,1cyclictest7552-21sh12:15:060
283989953,1cyclictest19869-21df08:00:120
283989953,1cyclictest10112-21fschecks_time08:50:120
283989952,2cyclictest6613-21expr07:30:140
283989952,2cyclictest28368-21sshd08:20:080
283989952,2cyclictest25070-21sh10:30:100
283989952,2cyclictest21823-21grep08:05:120
283989952,2cyclictest15400-21uniq12:00:120
283989952,2cyclictest13765-21cat11:40:140
283989951,3cyclictest3160-21cat08:35:110
283989951,3cyclictest24547-21ls08:10:150
283989950,3cyclictest23454-21rm10:10:060
283989950,2cyclictest827-21sshd08:30:110
283989950,2cyclictest14143-21memory09:45:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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