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2026-06-24 - 20:33
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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 Wed Jun 24, 2026 12:44:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
272032301280,13sleep20-21swapper/207:09:502
271902282252,20sleep10-21swapper/107:09:421
270902273243,19sleep00-21swapper/007:08:230
269272271241,20sleep30-21swapper/307:06:333
146172630,0sleep30-21swapper/309:46:303
37112620,0sleep30-21swapper/312:16:073
312102580,0sleep20-21swapper/208:25:202
278332570,0sleep20-21swapper/212:30:222
269342560,0sleep30-21swapper/310:52:573
228412560,0sleep00-21swapper/012:27:560
158212550,0sleep00-21swapper/009:47:270
251242540,0sleep10-21swapper/112:10:111
298282520,0sleep00-21swapper/011:53:160
320262210,0sleep20-21swapper/212:14:212
92682180,0sleep10-21swapper/108:50:141
8992180,0chrt0-21swapper/209:38:392
325392180,0sleep00-21swapper/011:35:150
313932170,0sleep20-21swapper/211:15:152
100662160,0sleep10-21swapper/107:40:161
2735399153,3cyclictest25589-21munin-run09:15:002
247722150,1sleep324774-21fschecks_time11:50:113
111802150,0sleep00-21swapper/010:43:380
108342140,0sleep30-21swapper/311:41:223
2735399133,3cyclictest14124-21smartctl10:45:132
2735399133,3cyclictest13931-21sed11:05:012
24162130,1sleep3341ksoftirqd/309:20:153
2735399123,6cyclictest28419-21sh10:15:052
2735399123,4cyclictest29785-21date10:55:002
2735399123,2cyclictest30458-21latency_hist11:15:022
2735399113,5cyclictest27549-21ssh11:32:172
2735399113,5cyclictest27549-21ssh11:32:172
2735399113,5cyclictest17430-21ssh11:06:252
2735399113,3cyclictest5889-21cat10:20:192
2735399112,6cyclictest24005-21ssh10:11:522
2735399112,3cyclictest15825-21perl09:05:142
61282100,0sleep10-21swapper/109:22:171
2735399105,4cyclictest8405-21idleruntime-cro08:50:012
2735399103,5cyclictest25056-21ssh09:33:542
2735399103,5cyclictest25056-21ssh09:33:542
2735399103,5cyclictest20713-21ssh12:26:182
2735399103,5cyclictest0-21swapper/209:48:112
2735399103,3cyclictest9886-21perl12:20:132
2735399103,3cyclictest9394-21sed08:50:152
2735399103,3cyclictest8871-21grep07:35:422
2735399103,3cyclictest8040-21ssh12:38:262
2735399103,3cyclictest5862-21ssh09:22:042
2735399103,3cyclictest5292-21cat10:40:122
2735399103,3cyclictest32378-21ssh11:35:142
2735399103,3cyclictest26640-21expr09:15:142
2735399103,3cyclictest19037-21sh12:05:472
2735399103,3cyclictest14116-21ssh10:05:362
2735399103,3cyclictest13393-21ssh09:26:172
2735399103,2cyclictest5232-21sh12:17:162
2735399103,2cyclictest3838-21if_enp4s009:40:132
2735399103,2cyclictest24804-21perl11:50:112
2735399102,5cyclictest3294-21ssh10:38:562
2735399102,5cyclictest2515-21ssh11:55:502
2735399102,5cyclictest24168-21ssh10:31:262
2735399102,5cyclictest22891-21runrttasks08:10:012
2735399102,5cyclictest22082-21ssh09:50:552
273539997,2cyclictest76-21kswapd012:00:122
273539996,2cyclictest29359-21munin-run08:25:002
273539995,3cyclictest20455-21latency_hist08:05:012
273539995,3cyclictest0-21swapper/207:25:112
273539994,4cyclictest15064-21sh09:05:002
273539993,2cyclictest27735-21sh09:55:072
273539992,5cyclictest8568-21ssh10:02:442
273539992,5cyclictest3738-21taskset08:37:562
273539992,5cyclictest17456-21ssh11:25:532
273539992,5cyclictest13730-21taskset07:49:372
273539992,5cyclictest12632-21ssh10:25:072
273539992,3cyclictest7686-21ssh11:40:092
273539992,3cyclictest18568-21sh11:45:562
273539992,3cyclictest14319-21cat07:50:122
273539992,3cyclictest12639-21sshd08:57:592
273539991,3cyclictest17291-21diskmemload11:20:122
273429998,1cyclictest12-21ksoftirqd/010:05:000
273429997,1cyclictest12-21ksoftirqd/007:20:010
7861280,1sleep37882-21ssh10:21:403
273539985,3cyclictest0-21swapper/208:30:102
273539985,2cyclictest31162-21ntp_states10:55:152
273539984,3cyclictest9958-21cat07:40:142
273539984,3cyclictest5336-21cstates07:30:122
273539984,3cyclictest5336-21cstates07:30:122
273539984,3cyclictest4983-21/usr/sbin/munin08:40:152
273539984,3cyclictest29844-21cat07:15:012
273539984,3cyclictest26162-21/usr/sbin/munin08:15:172
273539984,3cyclictest21451-21cat08:05:172
273539982,4cyclictest27509-21taskset07:10:092
273539982,2cyclictest16256-21dpkg07:55:102
273489981,1cyclictest141rcu_preempt09:25:011
273489980,7cyclictest30423-21ssh09:17:211
273429983,3cyclictest275-21systemd-journal08:25:120
273429980,5cyclictest0-21swapper/011:23:150
730270,0sleep00-21swapper/010:56:180
273579974,2cyclictest658-21snmpd11:30:113
273579974,2cyclictest658-21snmpd11:30:113
273579974,2cyclictest15068-21munin-plugin-st09:05:013
273579973,3cyclictest658-21snmpd11:08:403
273579973,3cyclictest658-21snmpd08:53:003
273579973,3cyclictest16526-21smart_sda09:05:203
273579973,3cyclictest16472-21diskstats11:45:123
273579973,3cyclictest10726-21sshd10:43:173
273579973,2cyclictest275-21systemd-journal11:26:533
273579970,6cyclictest1517-21cut12:35:003
273539973,3cyclictest747-21tail07:20:132
273489973,4cyclictest22-21ksoftirqd/107:52:461
273489973,3cyclictest275-21systemd-journal11:53:591
273489973,3cyclictest275-21systemd-journal09:33:051
273489973,3cyclictest275-21systemd-journal09:33:041
273489970,0cyclictest141rcu_preempt12:30:001
273429976,1cyclictest12-21ksoftirqd/012:00:000
273429974,2cyclictest3928-21readlink08:40:000
273429973,3cyclictest658-21snmpd11:27:380
273429973,3cyclictest504-21dbus-daemon08:10:000
273429973,3cyclictest2948-21ntpq09:20:180
273429973,3cyclictest275-21systemd-journal09:19:080
273429973,1cyclictest12-21ksoftirqd/011:00:200
273429972,4cyclictest10425-21sshd08:52:580
273429970,1cyclictest141rcu_preempt07:45:110
21762270,0sleep10-21swapper/110:10:191
273579966,0cyclictest0-21swapper/311:24:163
273579963,2cyclictest658-21snmpd11:00:223
273579963,2cyclictest658-21snmpd09:16:283
273579963,2cyclictest658-21snmpd07:44:523
273579963,2cyclictest504-21dbus-daemon09:10:443
273579963,2cyclictest3722-21sshd08:37:533
273579963,2cyclictest34-21ksoftirqd/308:25:003
273579963,2cyclictest275-21systemd-journal09:32:533
273579963,2cyclictest275-21systemd-journal09:32:533
273579963,2cyclictest25454-21diskstats12:10:133
273579963,2cyclictest22759-21cat11:10:123
273579963,2cyclictest21175-21sh12:26:403
273579963,2cyclictest20716-21apt-get08:05:143
273579963,2cyclictest14344-21ssh10:05:463
273579962,3cyclictest658-21snmpd12:21:043
273579962,3cyclictest658-21snmpd11:56:363
273579962,3cyclictest658-21snmpd10:39:043
273579962,3cyclictest658-21snmpd10:25:243
273579962,3cyclictest658-21snmpd09:52:353
273579962,3cyclictest658-21snmpd09:28:283
273579962,3cyclictest658-21snmpd08:04:373
273579962,3cyclictest658-21snmpd07:21:103
273579962,3cyclictest504-21dbus-daemon10:00:183
273579962,3cyclictest3986-21systemctl07:25:173
273579962,3cyclictest31862-21ntpq11:15:183
273579962,3cyclictest31286-21ls08:25:203
273579962,3cyclictest2876-21head12:35:123
273579962,3cyclictest28643-21cat10:15:123
273579962,3cyclictest275-21systemd-journal11:35:373
273579962,3cyclictest27471-21expr09:35:133
273579962,3cyclictest1-21systemd09:40:173
273579962,1cyclictest0-21swapper/310:48:273
273579962,1cyclictest0-21swapper/310:30:213
273579960,6cyclictest0-21swapper/312:09:573
273579960,6cyclictest0-21swapper/309:59:343
273579960,6cyclictest0-21swapper/307:30:103
273579960,6cyclictest0-21swapper/307:30:103
273579960,2cyclictest4168-21/usr/sbin/munin08:40:133
273579960,0cyclictest0-21swapper/310:55:013
273489964,1cyclictest141rcu_preempt09:35:021
273489963,2cyclictest7477-21ssh11:59:401
273489963,2cyclictest6684-21grep11:00:141
273489963,2cyclictest658-21snmpd10:32:041
273489963,2cyclictest658-21snmpd10:08:271
273489963,2cyclictest504-21dbus-daemon07:36:001
273489963,2cyclictest32699-21sed08:30:141
273489963,2cyclictest29119-21ssh10:35:041
273489963,2cyclictest26776-21cat12:30:141
273489963,2cyclictest24087-21sh09:13:511
273489963,2cyclictest16922-21cat07:55:121
273489963,2cyclictest16282-21ssh10:46:111
273489963,2cyclictest0-21swapper/111:20:201
273489963,1cyclictest0-21swapper/112:16:071
273489962,3cyclictest658-21snmpd11:35:141
273489962,3cyclictest658-21snmpd10:57:471
273489962,3cyclictest658-21snmpd10:50:171
273489962,3cyclictest658-21snmpd08:49:381
273489962,3cyclictest658-21snmpd08:25:381
273489962,3cyclictest658-21snmpd07:10:121
273489962,3cyclictest504-21dbus-daemon09:05:001
273489962,3cyclictest4017-21cat10:00:121
273489962,3cyclictest28067-21grep09:55:131
273489962,3cyclictest275-21systemd-journal09:10:001
273489962,3cyclictest24120-21grep11:10:201
273489962,3cyclictest17337-21fw_packets12:05:151
273489962,3cyclictest16489-21fschecks_count11:45:141
273489962,3cyclictest13649-21cat10:25:151
273489962,1cyclictest0-21swapper/111:40:131
273489961,4cyclictest6163-21turbostat08:45:011
273489961,4cyclictest221ksoftirqd/109:55:011
273489960,6cyclictest0-21swapper/112:03:431
273489960,6cyclictest0-21swapper/111:34:441
273489960,6cyclictest0-21swapper/111:34:441
273489960,6cyclictest0-21swapper/111:17:321
273489960,6cyclictest0-21swapper/111:09:001
273489960,6cyclictest0-21swapper/110:22:191
273489960,5cyclictest0-21swapper/108:10:001
273489960,4cyclictest4567-21sshd07:27:401
273489960,4cyclictest17291-21diskmemload10:40:111
273489960,4cyclictest0-21swapper/110:15:171
273489960,4cyclictest0-21swapper/107:32:421
273489960,4cyclictest0-21swapper/107:32:411
273429966,0cyclictest0-21swapper/012:35:180
273429966,0cyclictest0-21swapper/010:30:050
273429966,0cyclictest0-21swapper/009:28:000
273429966,0cyclictest0-21swapper/007:10:160
273429964,1cyclictest23615-21irqstats08:10:150
273429963,2cyclictest754-21head07:20:130
273429963,2cyclictest275-21systemd-journal11:31:530
273429963,2cyclictest275-21systemd-journal11:31:530
273429963,2cyclictest275-21systemd-journal10:48:180
273429963,2cyclictest17708-21/usr/sbin/munin09:10:120
273429962,3cyclictest658-21snmpd11:45:470
273429962,3cyclictest658-21snmpd11:43:320
273429962,3cyclictest658-21snmpd10:36:080
273429962,3cyclictest658-21snmpd09:36:250
273429962,3cyclictest658-21snmpd08:56:360
273429962,3cyclictest658-21snmpd08:45:560
273429962,3cyclictest658-21snmpd08:30:120
273429962,3cyclictest658-21snmpd08:02:130
273429962,3cyclictest658-21snmpd07:59:370
273429962,3cyclictest658-21snmpd07:52:040
273429962,3cyclictest658-21snmpd07:34:380
273429962,3cyclictest658-21snmpd07:34:370
273429962,3cyclictest658-21snmpd07:27:370
273429962,3cyclictest28069-21cat08:20:150
273429962,3cyclictest275-21systemd-journal09:58:090
273429962,3cyclictest26028-21apt12:30:120
273429962,3cyclictest25758-21cat12:10:140
273429962,3cyclictest23465-21grep10:50:200
273429962,3cyclictest0-21swapper/011:12:480
273429962,1cyclictest141rcu_preempt12:03:320
273429962,1cyclictest0-21swapper/012:15:520
273429962,1cyclictest0-21swapper/011:05:390
273429961,4cyclictest17291-21diskmemload11:15:120
273429961,4cyclictest0-21swapper/010:23:260
273429960,6cyclictest0-21swapper/010:15:160
273429960,6cyclictest0-21swapper/010:05:390
273429960,6cyclictest0-21swapper/009:51:420
273429960,6cyclictest0-21swapper/009:40:300
273429960,5cyclictest275-21systemd-journal07:42:390
273429960,1cyclictest141rcu_preempt12:20:110
273429960,1cyclictest0-21swapper/009:32:070
273429960,1cyclictest0-21swapper/009:32:070
273579953,1cyclictest7935-21interrupts07:35:153
273579953,1cyclictest11309-21grep08:55:123
273579953,1cyclictest0-21swapper/310:10:053
273579952,2cyclictest658-21snmpd08:46:023
273579952,2cyclictest658-21snmpd08:15:113
273579952,2cyclictest658-21snmpd07:50:013
273579952,2cyclictest32642-21fw_packets08:30:133
273579952,2cyclictest24096-21sendmail_mailtr08:10:193
273579952,2cyclictest16536-21cat07:55:103
273579952,2cyclictest12099-21cat07:45:123
273579951,3cyclictest8262-21ssh12:00:053
273579951,3cyclictest31063-21cat07:15:153
273579951,3cyclictest28152-21grep07:10:163
273489953,1cyclictest17291-21diskmemload12:20:111
273489953,1cyclictest11922-21cpuspeed_turbos07:45:111
273489952,2cyclictest674-21lldpd07:22:301
273489952,2cyclictest658-21snmpd09:45:031
273489952,2cyclictest31595-21smart_sda07:15:181
273489952,2cyclictest2976-21ssh09:40:051
273489952,2cyclictest27614-21cat08:20:121
273489952,2cyclictest23852-21ntpq08:10:161
273489952,2cyclictest16655-21grep11:25:191
273489952,2cyclictest10920-21cat08:55:101
273489951,3cyclictest3234-21grep08:35:211
273489951,3cyclictest25478-21cstates08:15:121
273489950,0cyclictest141rcu_preempt12:35:011
273489950,0cyclictest141rcu_preempt08:00:111
273429953,1cyclictest4541-21cat08:40:110
273429952,2cyclictest25443-21expr08:15:120
273429952,2cyclictest21074-21irqstats10:10:140
273429952,2cyclictest15928-21hwlatdetect09:05:140
273429951,3cyclictest658-21snmpd12:05:000
273429951,3cyclictest658-21snmpd07:35:040
273429951,3cyclictest13776-21cat09:00:130
273429951,3cyclictest13490-21/usr/sbin/munin10:25:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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