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2026-03-23 - 15:15
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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 all highest latencies:
System rackaslot8.osadl.org (updated Mon Mar 23, 2026 12:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
194012276249,17sleep10-21swapper/107:09:191
193412275248,18sleep20-21swapper/207:08:322
193122261230,20sleep00-21swapper/007:08:100
193882257230,18sleep30-21swapper/307:09:093
318602620,0sleep20-21swapper/212:20:122
149402600,0sleep00-21swapper/009:32:320
302972570,0sleep230298-21tune2fs11:20:142
221042570,0sleep20-21swapper/210:35:332
156562550,0sleep10-21swapper/111:30:261
133412550,0sleep10-21swapper/112:28:521
41932530,0sleep10-21swapper/109:25:401
171702530,0sleep30-21swapper/310:52:323
228662200,0sleep20-21swapper/208:25:182
154592200,0sleep00-21swapper/011:30:200
78002170,0sleep00-21swapper/012:05:160
153092170,0sleep00-21swapper/012:10:130
156852150,0sleep30-21swapper/311:10:533
319272140,0sleep3331rcuc/311:01:053
326052130,0sleep10-21swapper/110:42:211
26752130,0sleep30-21swapper/311:42:453
1956799113,1cyclictest0-21swapper/211:13:172
1956799100,3cyclictest5624-21idleruntime-cro11:45:012
1956799100,3cyclictest275-21systemd-journal12:38:342
1956799100,2cyclictest275-21systemd-journal10:25:002
20421290,0chrt0-21swapper/212:33:012
195679993,2cyclictest504-21dbus-daemon08:43:072
195679993,2cyclictest31315-21cron07:39:562
195679993,1cyclictest4999-21needreboot10:45:142
195679992,2cyclictest6067-21uname11:05:172
195679992,2cyclictest32252-1kworker/u9:112:12:482
195679992,2cyclictest30377-21ssh12:19:362
195679992,2cyclictest275-21systemd-journal12:01:242
195679992,2cyclictest24232-21ssh09:57:512
195679992,1cyclictest0-21swapper/210:40:152
195679990,5cyclictest29300-21users10:00:222
195679990,3cyclictest3856-21ntpq09:45:172
195679990,2cyclictest275-21systemd-journal09:01:282
195679990,2cyclictest275-21systemd-journal08:35:322
195679990,1cyclictest21918-21ntp_states10:55:172
195649993,3cyclictest16801-21munin-run08:15:011
11345290,0sleep30-21swapper/308:00:183
11345290,0sleep30-21swapper/308:00:173
195729986,1cyclictest0-21swapper/309:51:253
195679983,1cyclictest658-21snmpd08:10:202
195679982,2cyclictest8999-21sh11:26:392
195679982,2cyclictest6937-21ssh10:06:412
195679982,2cyclictest17946-21netstat08:15:162
195679982,1cyclictest5990-21ssh10:25:382
195679982,1cyclictest24001-21timerwakeupswit11:55:192
195679982,1cyclictest12816-21cat10:50:122
195679981,3cyclictest658-21snmpd12:27:032
195679981,3cyclictest32635-21/usr/sbin/munin08:50:192
195679981,3cyclictest0-21swapper/209:15:592
195679980,3cyclictest9250-21sh12:06:052
195679980,3cyclictest8769-21ssh11:46:042
195679980,3cyclictest5726-11brltty11:15:032
195679980,3cyclictest5319-21sh09:26:322
195679980,3cyclictest27546-21ssh11:38:162
195679980,3cyclictest26712-21ssh09:20:122
195679980,3cyclictest2077-21ssh11:03:022
195679980,3cyclictest16296-21sh11:50:352
195679980,3cyclictest15519-21rm09:32:582
195679980,3cyclictest14666-21wc11:30:152
195679980,3cyclictest13594-21sed10:30:192
195679980,3cyclictest13267-21basename08:05:162
195679980,3cyclictest13186-21rm10:10:192
195679980,3cyclictest11741-21/usr/sbin/munin09:50:152
195679980,3cyclictest11409-21sed08:00:202
195679980,3cyclictest11409-21sed08:00:202
195679980,3cyclictest0-21swapper/209:11:262
195679980,2cyclictest275-21systemd-journal09:41:232
195679980,2cyclictest275-21systemd-journal08:56:532
195649983,3cyclictest275-21systemd-journal07:40:021
195649981,4cyclictest11638-21idleruntime-cro10:30:001
195609986,1cyclictest4826-21mailstats10:05:220
21714270,1sleep10-21swapper/111:15:121
195729973,3cyclictest275-21systemd-journal12:36:293
195729973,3cyclictest275-21systemd-journal12:28:093
195729973,2cyclictest275-21systemd-journal07:55:063
195679973,1cyclictest0-21swapper/209:39:292
195679972,1cyclictest32001-21taskset08:45:222
195679971,2cyclictest658-21snmpd07:26:302
195679970,3cyclictest8558-21diskstats07:55:142
195679970,3cyclictest8447-21smart_sda09:05:192
195679970,3cyclictest7156-21smart_sda07:50:182
195679970,3cyclictest27078-11brltty07:45:102
195679970,3cyclictest24032-21ssh10:17:162
195679970,2cyclictest275-21systemd-journal07:30:342
195649976,1cyclictest22-21ksoftirqd/109:15:001
195649973,3cyclictest658-21snmpd11:56:081
195649973,3cyclictest658-21snmpd11:37:561
195609974,2cyclictest658-21snmpd10:25:360
195609973,3cyclictest658-21snmpd12:21:080
195609973,3cyclictest658-21snmpd11:20:220
195609972,3cyclictest275-21systemd-journal09:00:060
195609971,3cyclictest0-21swapper/011:15:010
10682270,0sleep30-21swapper/310:49:083
195729965,1cyclictest34-21ksoftirqd/310:35:013
195729964,1cyclictest1452-21smart_sda08:50:203
195729963,2cyclictest9662-21acpi09:10:113
195729963,2cyclictest8038-21ssh11:06:153
195729963,2cyclictest658-21snmpd07:45:043
195729963,2cyclictest5640-21sshd10:05:423
195729963,2cyclictest504-21dbus-daemon10:55:023
195729963,2cyclictest34-21ksoftirqd/311:30:013
195729963,2cyclictest32404-21tr12:20:153
195729963,2cyclictest28315-21cat10:20:133
195729963,2cyclictest24348-21ssh11:35:433
195729963,2cyclictest20179-21diskstats07:10:123
195729963,2cyclictest15983-21sort12:30:143
195729963,2cyclictest12347-21cat10:10:153
195729963,2cyclictest0-21swapper/309:30:113
195729963,2cyclictest0-21swapper/309:16:423
195729963,1cyclictest0-21swapper/309:46:073
195729962,3cyclictest658-21snmpd11:46:443
195729962,3cyclictest658-21snmpd10:00:023
195729962,3cyclictest658-21snmpd09:58:593
195729962,3cyclictest658-21snmpd09:37:313
195729962,3cyclictest658-21snmpd09:25:093
195729962,3cyclictest658-21snmpd08:49:363
195729962,3cyclictest658-21snmpd08:26:263
195729962,3cyclictest658-21snmpd08:15:563
195729962,3cyclictest658-21snmpd07:28:303
195729962,3cyclictest5944-21ntpq09:00:163
195729962,3cyclictest504-11dbus-daemon08:55:133
195729962,3cyclictest31129-21cut12:00:143
195729962,3cyclictest27837-21wc09:40:153
195729962,3cyclictest25844-21ntpq07:20:163
195729962,1cyclictest141rcu_preempt08:05:213
195729961,3cyclictest488-21rm11:21:243
195729961,3cyclictest29345-21rm09:21:213
195729961,3cyclictest22886-21rm10:36:083
195729960,6cyclictest9218-21diskmemload10:15:503
195729960,6cyclictest0-21swapper/311:16:413
195679964,1cyclictest21787-21wc07:15:012
195679963,2cyclictest658-21snmpd07:42:552
195679963,2cyclictest26823-21sshd07:24:592
195679962,3cyclictest658-21snmpd07:16:392
195679962,3cyclictest275-21systemd-journal08:30:242
195679961,2cyclictest658-21snmpd08:22:292
195649966,0cyclictest0-21swapper/111:48:121
195649966,0cyclictest0-21swapper/111:20:171
195649963,2cyclictest658-21snmpd07:11:271
195649963,2cyclictest5865-21sh10:05:531
195649963,2cyclictest5726-11brltty11:25:281
195649963,2cyclictest5686-21ssh09:46:141
195649963,2cyclictest31427-21sh09:42:261
195649963,2cyclictest29904-21sh10:00:471
195649963,2cyclictest29118-21taskset12:18:381
195649963,2cyclictest28039-21ntpq07:25:181
195649963,2cyclictest275-21systemd-journal12:11:241
195649963,2cyclictest275-21systemd-journal10:55:271
195649963,2cyclictest20694-21ssh09:35:331
195649963,1cyclictest0-21swapper/112:06:161
195649963,1cyclictest0-21swapper/110:54:101
195649962,3cyclictest658-21snmpd10:18:331
195649962,3cyclictest658-21snmpd10:11:421
195649962,3cyclictest658-21snmpd09:55:131
195649962,3cyclictest658-21snmpd09:06:381
195649962,3cyclictest658-21snmpd08:35:051
195649962,3cyclictest658-21snmpd08:03:311
195649962,3cyclictest658-21snmpd08:03:311
195649962,3cyclictest658-21snmpd07:49:221
195649962,3cyclictest658-21snmpd07:36:151
195649962,3cyclictest658-21snmpd07:21:211
195649962,3cyclictest658-21snmpd07:20:001
195649962,3cyclictest19647-21expr08:20:121
195649962,3cyclictest17180-21expr08:15:111
195649962,3cyclictest12764-21munin-run11:10:011
195649960,6cyclictest0-21swapper/112:39:391
195649960,6cyclictest0-21swapper/111:02:361
195649960,6cyclictest0-21swapper/110:48:241
195649960,6cyclictest0-21swapper/110:32:031
195649960,2cyclictest11089-21apt-get09:50:131
195609963,2cyclictest658-21snmpd09:57:140
195609963,2cyclictest658-21snmpd08:35:020
195609963,2cyclictest658-21snmpd08:32:050
195609963,2cyclictest504-21dbus-daemon08:30:000
195609963,2cyclictest3936-21sshd09:25:240
195609963,2cyclictest3847-21ssh11:43:390
195609963,2cyclictest275-21systemd-journal08:45:000
195609963,2cyclictest24956-21ssh10:57:150
195609963,2cyclictest22359-21head07:15:020
195609962,3cyclictest7376-21expr12:25:100
195609962,3cyclictest6737-21tail11:05:210
195609962,3cyclictest658-21snmpd12:33:000
195609962,3cyclictest658-21snmpd12:01:500
195609962,3cyclictest658-21snmpd11:58:530
195609962,3cyclictest658-21snmpd11:35:560
195609962,3cyclictest658-21snmpd11:25:030
195609962,3cyclictest658-21snmpd11:15:040
195609962,3cyclictest658-21snmpd11:03:460
195609962,3cyclictest658-21snmpd10:47:040
195609962,3cyclictest658-21snmpd10:41:540
195609962,3cyclictest658-21snmpd09:50:380
195609962,3cyclictest658-21snmpd09:45:490
195609962,3cyclictest658-21snmpd08:07:190
195609962,3cyclictest658-21snmpd07:53:190
195609962,3cyclictest658-21snmpd07:38:580
195609962,3cyclictest28310-21cat10:00:160
195609962,3cyclictest275-21systemd-journal08:45:260
195609962,3cyclictest275-21systemd-journal08:04:200
195609962,3cyclictest275-21systemd-journal08:04:200
195609962,3cyclictest26556-21expr09:20:120
195609962,3cyclictest11831-21apt-get10:50:010
195609962,1cyclictest0-21swapper/010:33:540
195609962,1cyclictest0-21swapper/009:39:470
195609961,4cyclictest275-21systemd-journal12:40:000
195609961,3cyclictest275-21systemd-journal09:40:430
195609960,5cyclictest15222-21diskstats08:10:110
195729952,2cyclictest7727-21ps12:05:153
195729952,2cyclictest7223-21cat09:05:123
195729952,2cyclictest658-21snmpd10:25:093
195729952,2cyclictest6335-21sh07:50:133
195729952,2cyclictest31568-21sshd07:35:103
195729952,2cyclictest28872-21cat08:40:153
195729952,2cyclictest23542-21open_files11:55:163
195729952,2cyclictest22886-21expr07:15:123
195729952,2cyclictest19728-21tune2fs08:20:143
195729952,2cyclictest15049-21expr08:10:113
195729952,1cyclictest0-21swapper/310:40:153
195729951,3cyclictest658-21snmpd07:30:073
195729951,3cyclictest2483-21ntpq07:40:183
195729951,3cyclictest24088-21cat08:30:123
195729951,3cyclictest14077-21cat11:30:113
195729951,3cyclictest0-21swapper/312:10:023
195729950,4cyclictest23749-21hddtemp_smartct12:15:153
195729950,3cyclictest14255-21/usr/sbin/munin11:50:173
195649954,1cyclictest31388-21apt-get12:20:101
195649953,1cyclictest658-21snmpd11:50:051
195649953,1cyclictest658-21snmpd07:50:341
195649953,1cyclictest5393-21df09:00:121
195649953,1cyclictest22833-21cat08:25:191
195649952,2cyclictest9109-21tr07:55:171
195649952,2cyclictest658-21snmpd11:10:131
195649952,2cyclictest658-21snmpd09:30:131
195649952,2cyclictest658-21snmpd08:46:091
195649952,2cyclictest32023-21sh11:40:241
195649952,2cyclictest30459-21ssh12:00:041
195649952,2cyclictest28985-21cat08:40:161
195649952,2cyclictest24250-21gltestperf08:30:131
195649952,2cyclictest21979-21rm10:35:281
195649952,2cyclictest17867-21ssh09:15:061
195649952,2cyclictest15935-21head12:30:141
195649952,2cyclictest13764-21sendmail_mailqu08:05:201
195649952,1cyclictest0-21swapper/109:20:061
195649951,3cyclictest874-21cat08:50:151
195649951,3cyclictest3159-21/usr/sbin/munin08:55:131
195649951,3cyclictest31323-21idleruntime-cro07:35:011
195649951,3cyclictest28132-21rm10:20:131
195609953,1cyclictest29133-21sh10:20:180
195609953,1cyclictest17478-21tune2fs08:15:130
195609952,2cyclictest9478-21sh09:10:020
195609952,2cyclictest6837-21cat11:45:160
195609952,2cyclictest658-21snmpd10:35:020
195609952,2cyclictest658-21snmpd08:50:080
195609952,2cyclictest658-21snmpd07:46:250
195609952,2cyclictest658-21snmpd07:30:300
195609952,2cyclictest658-21snmpd07:10:060
195609952,2cyclictest28336-21expr07:25:190
195609952,2cyclictest23799-21ssh12:15:150
195609952,2cyclictest20159-21expr10:15:130
195609952,1cyclictest0-21swapper/010:10:020
195609952,1cyclictest0-21swapper/009:15:060
195609951,3cyclictest9123-21ntp_states07:55:180
195609951,3cyclictest7229-21find09:05:120
195609951,3cyclictest658-21snmpd08:20:050
195609951,3cyclictest658-21snmpd07:40:040
195609951,3cyclictest24863-21sort07:20:100
195609951,3cyclictest0-21swapper/011:50:030
195609950,4cyclictest4299-21head08:55:210
195729940,3cyclictest25949-21find08:35:113
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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