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2026-03-06 - 21:28
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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 all highest latencies:
System rack1slot2.osadl.org (updated Fri Mar 06, 2026 12:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2259325041,0sleep30-21swapper/307:14:593
2252023725,0sleep00-21swapper/007:14:030
2256323626,0sleep10-21swapper/107:14:361
2263623526,0sleep20-21swapper/207:15:262
22833991414,0cyclictest3524-21snmpd08:59:100
228359970,0cyclictest16824-21kthreadcore10:37:172
4160,0ktimersoftd/00-21swapper/010:43:040
339960,0migration/35487-21sh12:23:093
339960,0migration/317166-21kthreadcore10:57:183
339960,0migration/315103-21munin-node10:17:173
339960,0migration/314765-21sh11:15:363
339960,0migration/314372-21sh09:59:493
339960,0migration/312831-21sh09:41:423
29805060,0irq/28-eth0-rx-19574-21crond08:21:573
27160,0ktimersoftd/20-21swapper/210:43:042
149960,0migration/09537-21sh11:47:390
149960,0migration/06049-21sh12:24:440
149960,0migration/018358-21sh09:24:460
339950,0migration/34569-21runrttasks12:06:513
339950,0migration/33454-21kthreadcore11:27:163
339950,0migration/3339-21latency08:27:153
339950,0migration/33374-21irqcore09:17:143
339950,0migration/330973-21kthreadcore07:42:153
339950,0migration/330200-21taskset11:06:373
339950,0migration/329000-21kthreadcore11:22:163
339950,0migration/327873-21kthreadcore08:47:143
339950,0migration/327856-21kthreadcore08:02:143
339950,0migration/327375-21if_eth110:27:133
339950,0migration/322864-21fschecks_count12:17:103
339950,0migration/322079-21cpuspeed_turbos09:47:103
339950,0migration/321738-21munin-node10:02:193
339950,0migration/321463-21kthreadcore07:37:153
339950,0migration/320220-21cpuspeed_turbos11:57:103
339950,0migration/319403-21taskset11:56:103
339950,0migration/316404-21fschecks_count12:32:123
339950,0migration/313743-21kthreadcore10:37:163
339950,0migration/313363-21fschecks_count09:02:103
339950,0migration/311839-21timerwakeupswit08:12:223
329950,0watchdog/39603-21sh10:33:213
329950,0watchdog/36691-21missed_timers12:42:173
329950,0watchdog/331580-21perl08:52:123
329950,0watchdog/314691-21memory07:52:163
329950,0watchdog/310493-21runrttasks11:50:213
329950,0watchdog/30-21swapper/310:42:173
329950,0watchdog/30-21swapper/309:42:173
29815050,0irq/29-eth0-tx-5474-21fschecks_count12:07:122
29815050,0irq/29-eth0-tx-16293-21munin-node08:42:180
29815050,0irq/29-eth0-tx-16050-21munin-node07:57:170
29805050,0irq/28-eth0-rx-6711-21python10:12:213
29805050,0irq/28-eth0-rx-0-21swapper/312:39:353
29805050,0irq/28-eth0-rx-0-21swapper/311:37:123
29805050,0irq/28-eth0-rx-0-21swapper/311:34:383
29805050,0irq/28-eth0-rx-0-21swapper/311:34:383
29805050,0irq/28-eth0-rx-0-21swapper/311:09:183
29805050,0irq/28-eth0-rx-0-21swapper/310:54:493
29805050,0irq/28-eth0-rx-0-21swapper/310:47:143
29805050,0irq/28-eth0-rx-0-21swapper/309:32:043
29805050,0irq/28-eth0-rx-0-21swapper/308:42:153
27150,0ktimersoftd/20-21swapper/212:44:342
228359955,0cyclictest27005-21dump-pmu-power09:11:572
228359955,0cyclictest0-21swapper/210:52:152
228359955,0cyclictest0-21swapper/207:42:172
228359950,0cyclictest0-21swapper/210:23:152
228349955,0cyclictest0-21swapper/112:07:311
228349955,0cyclictest0-21swapper/109:19:081
228349950,0cyclictest0-21swapper/111:32:121
228349950,0cyclictest0-21swapper/111:32:121
228349950,0cyclictest0-21swapper/109:53:021
228349950,0cyclictest0-21swapper/108:11:591
228339955,0cyclictest0-21swapper/011:56:240
228339955,0cyclictest0-21swapper/009:52:200
228339950,0cyclictest0-21swapper/010:18:580
228339950,0cyclictest0-21swapper/009:11:580
19150,0ktimersoftd/10-21swapper/110:43:041
179950,0migration/18569-21irqcore12:27:141
179950,0migration/16987-21latency_hist12:26:581
179950,0migration/1495-21munin-node07:42:201
179950,0migration/14660-21munin-node11:07:211
179950,0migration/14482-21latency_hist10:51:581
179950,0migration/13926-21kthreadcore12:42:161
179950,0migration/131105-21kthreadcore09:12:161
179950,0migration/129261-21taskset11:03:591
179950,0migration/126772-21sh09:29:011
179950,0migration/126538-21latency_hist07:41:571
179950,0migration/124226-21sh11:22:101
179950,0migration/122148-21sh10:02:291
179950,0migration/122003-21kthreadcore11:57:151
179950,0migration/118771-21sh10:40:001
179950,0migration/115305-21kthreadcore09:22:171
179950,0migration/114049-21fschecks_time10:57:141
179950,0migration/112007-21sh10:54:031
179950,0migration/111880-21fschecks_count11:52:111
169950,0watchdog/16781-21cat08:57:121
169950,0watchdog/131392-21if_eth107:22:121
169950,0watchdog/12975-21if_eth1.208:32:121
149950,0migration/06608-21kthreadcore09:17:160
149950,0migration/06518-21sh11:11:320
149950,0migration/06438-21munin-node10:12:170
149950,0migration/05536-21fschecks_count12:07:120
149950,0migration/05395-21kthreadcore08:32:140
149950,0migration/04157-21runrttasks07:22:190
149950,0migration/04095-21kthreadcore11:27:160
149950,0migration/031607-21taskset10:09:480
149950,0migration/030060-21kthreadcore12:37:170
149950,0migration/029926-21kthreadcore08:27:150
149950,0migration/029240-21rt-features07:17:190
149950,0migration/029155-21kthreadcore07:42:150
149950,0migration/026105-21kthreadcore12:17:150
149950,0migration/02465-21gltestperf07:47:100
149950,0migration/02344-21kthreadcore12:42:150
149950,0migration/023198-21latency_hist08:01:570
149950,0migration/023014-21munin-node11:02:130
149950,0migration/022560-21sh11:18:130
149950,0migration/021859-21kthreadcore07:37:150
149950,0migration/020933-21sh10:59:450
149950,0migration/020812-21idleruntime08:22:110
149950,0migration/019108-21irqrtprio10:22:130
149950,0migration/018401-21taskset10:38:580
149950,0migration/013569-21iostat07:32:120
149950,0migration/013051-21cpuspeed_turbos09:02:090
149950,0migration/011988-21kthreadcore08:37:160
149950,0migration/010667-21kthreadcore07:27:210
339940,0migration/39579-21kthreadcore07:27:213
339940,0migration/332421-21kthreadcore09:12:163
339940,0migration/32725-21kthreadcore08:07:163
339940,0migration/322705-21kthreadcore10:22:153
329940,0watchdog/30-21swapper/308:57:123
329940,0watchdog/30-21swapper/308:32:123
329940,0watchdog/30-21swapper/307:22:123
329940,0watchdog/30-21swapper/307:21:523
29815040,0irq/29-eth0-tx-9416-21ssh09:19:272
29815040,0irq/29-eth0-tx-28484-21sendmail_mailqu12:17:192
29815040,0irq/29-eth0-tx-17922-21ssh11:37:092
29815040,0irq/29-eth0-tx-1767-21diskmemload12:37:012
29815040,0irq/29-eth0-tx-0-21swapper/212:22:112
29815040,0irq/29-eth0-tx-0-21swapper/212:12:142
29815040,0irq/29-eth0-tx-0-21swapper/211:57:182
29815040,0irq/29-eth0-tx-0-21swapper/211:42:252
29815040,0irq/29-eth0-tx-0-21swapper/211:23:032
29815040,0irq/29-eth0-tx-0-21swapper/211:20:052
29815040,0irq/29-eth0-tx-0-21swapper/210:57:032
29815040,0irq/29-eth0-tx-0-21swapper/210:49:472
29815040,0irq/29-eth0-tx-0-21swapper/210:18:362
29815040,0irq/29-eth0-tx-0-21swapper/210:07:112
29815040,0irq/29-eth0-tx-0-21swapper/210:02:052
29815040,0irq/29-eth0-tx-0-21swapper/209:49:442
29815040,0irq/29-eth0-tx-0-21swapper/209:43:372
29815040,0irq/29-eth0-tx-0-21swapper/209:32:062
29815040,0irq/29-eth0-tx-0-21swapper/209:22:112
29815040,0irq/29-eth0-tx-0-21swapper/009:09:120
29815040,0irq/29-eth0-tx-0-21swapper/007:52:080
29805040,0irq/28-eth0-rx-29974-21kthreadcore11:42:143
29805040,0irq/28-eth0-rx-0-21swapper/312:27:013
29805040,0irq/28-eth0-rx-0-21swapper/312:13:273
29805040,0irq/28-eth0-rx-0-21swapper/312:07:113
29805040,0irq/28-eth0-rx-0-21swapper/311:17:153
29805040,0irq/28-eth0-rx-0-21swapper/310:07:043
29805040,0irq/28-eth0-rx-0-21swapper/309:53:583
29805040,0irq/28-eth0-rx-0-21swapper/309:27:123
29805040,0irq/28-eth0-rx-0-21swapper/309:22:133
259940,0migration/28937-21kthreadcore08:57:142
259940,0migration/27065-21kthreadcore09:37:162
259940,0migration/25662-21kthreadcore10:12:162
259940,0migration/231057-21cpuspeed_turbos08:52:112
259940,0migration/216936-21fschecks_time07:57:102
259940,0migration/210970-21kthreadcore11:32:152
259940,0migration/210970-21kthreadcore11:32:152
249940,0watchdog/224127-21cut07:37:162
249940,0watchdog/221386-21kthreadcore12:32:172
249940,0watchdog/212881-21memory11:12:172
249940,0watchdog/20-21swapper/211:47:092
249940,0watchdog/20-21swapper/208:32:122
228359943,0cyclictest7902-21awk09:57:122
228359943,0cyclictest6374-21ps07:27:202
228359943,0cyclictest3571-21lldpd09:52:092
228359943,0cyclictest3524-21snmpd12:03:502
228359943,0cyclictest3524-21snmpd10:27:032
228359943,0cyclictest3524-21snmpd08:42:152
228359943,0cyclictest3524-21snmpd07:54:452
228359943,0cyclictest31800-21awk11:07:142
228359943,0cyclictest31563-21awk08:07:132
228359943,0cyclictest23088-21awk11:02:132
228359943,0cyclictest1506-21awk11:27:132
228359943,0cyclictest11354-21munin-node11:52:122
228359943,0cyclictest10134-21awk08:37:132
228359940,0cyclictest2414-21munin-node10:32:112
228349944,0cyclictest0-21swapper/112:02:191
228349944,0cyclictest0-21swapper/110:22:121
228349944,0cyclictest0-21swapper/109:40:061
228349943,0cyclictest6247-21awk07:27:191
228349943,0cyclictest3524-21snmpd12:38:361
228349943,0cyclictest3524-21snmpd11:44:501
228349943,0cyclictest3524-21snmpd11:37:191
228349943,0cyclictest3524-21snmpd09:49:021
228349943,0cyclictest3524-21snmpd09:35:171
228349943,0cyclictest3524-21snmpd08:55:311
228349943,0cyclictest28054-21awk08:27:121
228349943,0cyclictest24324-21awk08:02:121
228349943,0cyclictest21169-21awk09:07:141
228349943,0cyclictest19331-21sadc07:36:571
228349943,0cyclictest16602-21awk11:17:131
228349943,0cyclictest10123-21awk10:17:131
228339943,0cyclictest7928-21awk09:57:120
228339943,0cyclictest3571-21lldpd11:32:100
228339943,0cyclictest3571-21lldpd11:32:100
228339943,0cyclictest3571-21lldpd10:03:090
228339943,0cyclictest3529-21awk10:32:140
228339943,0cyclictest29517-21awk10:47:120
228339943,0cyclictest27505-21awk11:42:120
228339943,0cyclictest25303-21awk11:22:140
228339943,0cyclictest20630-21awk09:27:120
228339943,0cyclictest16965-21awk12:32:150
228339943,0cyclictest13078-21sadc10:56:580
228339941,0cyclictest10-21rcuc/008:12:100
228339940,0cyclictest0-21swapper/008:20:250
179940,0migration/19632-21kthreadcore11:12:151
179940,0migration/19172-21kthreadcore09:57:141
179940,0migration/19011-21aten_r1power_vo07:52:091
179940,0migration/131023-21fschecks_count08:07:111
179940,0migration/129981-21unixbench-2d08:47:211
179940,0migration/128134-21kthreadcore10:07:151
179940,0migration/12655-21kthreadcore11:27:151
179940,0migration/125319-21kthreadcore07:17:151
179940,0migration/123716-21runrttasks12:35:501
179940,0migration/121531-21kthreadcore08:22:141
179940,0migration/113670-21fschecks_time09:02:101
179940,0migration/111599-21kthreadcore08:37:161
169940,0watchdog/17822-21ssh10:14:291
169940,0watchdog/130321-21ssh12:21:211
169940,0watchdog/121925-21chrt12:16:571
169940,0watchdog/10-21swapper/111:47:091
169940,0watchdog/10-21swapper/110:27:411
169940,0watchdog/10-21swapper/109:42:171
169940,0watchdog/10-21swapper/108:17:081
149940,0migration/032617-21kthreadcore08:52:160
149940,0migration/028757-21fschecks_count09:32:110
149940,0migration/027132-21kthreadcore09:47:160
149940,0migration/021368-21kthreadcore11:37:140
149940,0migration/017573-21kthreadcore09:42:160
329930,0watchdog/30-21swapper/308:37:123
329930,0watchdog/30-21swapper/308:22:203
29805030,0irq/28-eth0-rx-0-21swapper/309:07:093
29805030,0irq/28-eth0-rx-0-21swapper/307:47:123
29805030,0irq/28-eth0-rx-0-21swapper/307:32:083
27130,0ktimersoftd/20-21swapper/207:50:572
249930,0watchdog/211411-21nfs_client08:12:162
249930,0watchdog/20-21swapper/212:27:092
249930,0watchdog/20-21swapper/209:02:562
249930,0watchdog/20-21swapper/208:17:082
249930,0watchdog/20-21swapper/207:32:122
249930,0watchdog/20-21swapper/207:22:082
228359932,0cyclictest3571-21lldpd09:16:082
228359932,0cyclictest24555-21awk08:47:112
228359932,0cyclictest24451-21awk08:02:122
228359932,0cyclictest24228-21awk07:17:132
228359932,0cyclictest20991-21awk08:22:122
228359930,0cyclictest26968-21wc08:26:572
228359930,0cyclictest0-21swapper/209:27:092
228349933,0cyclictest20405-21kthreadcore08:42:151
228349932,0cyclictest3524-21snmpd07:58:301
228339933,0cyclictest8158-21awk11:12:140
228339933,0cyclictest0-21swapper/012:28:250
228339933,0cyclictest0-21swapper/009:39:050
228339932,0cyclictest4393-21sensors08:07:200
228339932,0cyclictest3571-21lldpd10:28:390
228339932,0cyclictest23520-21munin-node08:47:080
228339932,0cyclictest2154-21memory12:02:180
228339932,0cyclictest21109-21awk11:57:130
228339930,0cyclictest0-21swapper/012:12:070
169930,0watchdog/10-21swapper/110:32:171
329920,0watchdog/30-21swapper/307:57:003
169920,0watchdog/10-21swapper/107:47:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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