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2026-06-23 - 19:23
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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 rack1slot2.osadl.org (updated Tue Jun 23, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1422627371,0sleep20-21swapper/207:21:512
1426425958,0sleep10-21swapper/107:22:151
14664995050,0cyclictest83050irq/26-0000:00:09:35:202
1444325039,0sleep30-21swapper/307:24:173
1457223524,0sleep00-21swapper/007:25:460
14662991515,0cyclictest3524-21snmpd11:18:220
146629999,0cyclictest3524-21snmpd11:53:280
8305060,0irq/26-0000:00:28121-21diskstats08:41:103
8305060,0irq/26-0000:00:27293-21perl07:56:093
8305060,0irq/26-0000:00:25436-21python07:51:183
8305060,0irq/26-0000:00:13610-21grep09:11:213
339960,0migration/330052-21sh11:53:443
339960,0migration/327114-21sh11:31:523
339960,0migration/325272-21sh12:26:563
339960,0migration/310532-21fschecks_time12:21:123
29805060,0irq/28-eth0-rx-7117-21timerwakeupswit11:01:243
29805060,0irq/28-eth0-rx-30143-21ssh09:42:003
29805060,0irq/28-eth0-rx-2678-21ssh10:21:393
146629960,0cyclictest0-21swapper/009:38:200
149960,0migration/04403-21sh11:39:350
149960,0migration/031528-21sh12:11:350
149960,0migration/030718-21sh09:43:190
149960,0migration/023156-21turbostat.cron08:15:560
149960,0migration/021432-21kthreadcore12:26:160
8305050,0irq/26-0000:00:95532chrt08:48:243
8305050,0irq/26-0000:00:4194-21kthreadcore08:01:143
8305050,0irq/26-0000:00:32434-21grep09:06:093
8305050,0irq/26-0000:00:25748-21if_eth009:01:143
8305050,0irq/26-0000:00:24485-21kthreadcore09:21:113
8305050,0irq/26-0000:00:21130-21taskset09:18:083
8305050,0irq/26-0000:00:15069-21sensors08:06:183
8305050,0irq/26-0000:00:10270-21ls08:51:103
8305050,0irq/26-0000:00:10010-21kthreadcore08:26:143
8305050,0irq/26-0000:00:0-21swapper/308:36:143
8305050,0irq/26-0000:00:0-21swapper/308:21:093
8305050,0irq/26-0000:00:0-21swapper/307:46:113
8305050,0irq/26-0000:00:0-21swapper/307:26:083
339950,0migration/37438-21kthreadcore10:06:153
339950,0migration/34687-21munin-node10:41:233
339950,0migration/34406-21taskset09:29:473
339950,0migration/33732-21gltestperf11:21:093
339950,0migration/33549-21switchtime07:36:203
339950,0migration/330972-21kthreadcore10:01:153
339950,0migration/323546-21munin-node08:56:183
339950,0migration/320367-21kthreadcore12:06:143
339950,0migration/313751-21munin-node10:31:113
339950,0migration/313311-21cpuspeed_turbos08:31:093
339950,0migration/311800-21cpuspeed_turbos11:26:113
329950,0watchdog/315251-21awk09:36:113
329950,0watchdog/310179-21cut12:01:163
29815050,0irq/29-eth0-tx-6104-21ssh10:44:312
29815050,0irq/29-eth0-tx-27700-21munin-node08:41:100
29815050,0irq/29-eth0-tx-26437-21munin-node07:56:150
29815050,0irq/29-eth0-tx-25582-21memory10:16:152
29815050,0irq/29-eth0-tx-19226-21runrttasks07:51:070
29815050,0irq/29-eth0-tx-18366-21if_err_eth009:56:112
29815050,0irq/29-eth0-tx-1808-21ssh11:01:152
29815050,0irq/29-eth0-tx-13041-21munin-node08:31:130
29815050,0irq/29-eth0-tx-12233-21kthreadcore12:21:162
29815050,0irq/29-eth0-tx-0-21swapper/211:56:082
29815050,0irq/29-eth0-tx-0-21swapper/211:51:082
29815050,0irq/29-eth0-tx-0-21swapper/209:38:212
29805050,0irq/28-eth0-rx-918-21ssh12:15:593
29805050,0irq/28-eth0-rx-8089-21if_eth110:46:123
29805050,0irq/28-eth0-rx-3682-21grep09:46:153
29805050,0irq/28-eth0-rx-24230-21ssh10:56:013
29805050,0irq/28-eth0-rx-21672-21kthreadcore10:16:133
29805050,0irq/28-eth0-rx-18787-21kthreadcore10:51:143
29805050,0irq/28-eth0-rx-13302-21tr11:06:153
29805050,0irq/28-eth0-rx-12619-21ssh10:29:533
29805050,0irq/28-eth0-rx-12464-21sed10:11:133
29805050,0irq/28-eth0-rx-0-21swapper/312:41:143
29805050,0irq/28-eth0-rx-0-21swapper/311:56:143
29805050,0irq/28-eth0-rx-0-21swapper/311:40:593
29805050,0irq/28-eth0-rx-0-21swapper/311:11:173
29805050,0irq/28-eth0-rx-0-21swapper/309:59:153
29805050,0irq/28-eth0-rx-0-21swapper/309:31:123
259950,0migration/2855-21munin-node09:46:132
259950,0migration/229946-21kthreadcore10:21:132
259950,0migration/224327-21kthreadcore12:46:152
259950,0migration/218576-21timerwakeupswit12:41:212
259950,0migration/217625-21kthreadcore07:26:142
19150,0ktimersoftd/10-21swapper/108:53:161
179950,0migration/19548-21latency_hist12:20:571
179950,0migration/18372-21taskset08:04:201
179950,0migration/128094-21munin-node12:31:111
179950,0migration/126202-21sh07:55:561
179950,0migration/12339-21kthreadcore11:01:151
179950,0migration/121360-21kthreadcore12:26:161
179950,0migration/120426-21timerwakeupswit11:46:211
179950,0migration/112369-21fschecks_time11:26:121
179950,0migration/111987-21hwlatdetect10:11:111
146649953,0cyclictest3003-21swap09:26:222
146639955,0cyclictest0-21swapper/112:36:111
146639950,0cyclictest0-21swapper/111:55:211
146639950,0cyclictest0-21swapper/110:40:371
146639950,0cyclictest0-21swapper/108:13:221
146629955,0cyclictest0-21swapper/012:34:450
146629955,0cyclictest0-21swapper/009:53:370
146629955,0cyclictest0-21swapper/009:28:330
146629955,0cyclictest0-21swapper/007:32:410
146629954,0cyclictest3524-21snmpd11:56:530
146629954,0cyclictest21577-21grep08:36:120
146629950,0cyclictest0-21swapper/010:52:540
146629950,0cyclictest0-21swapper/009:09:000
146629950,0cyclictest0-21swapper/007:27:470
149950,0migration/09924-21kthreadcore10:46:140
149950,0migration/08996-21sh12:19:400
149950,0migration/08745-21taskset11:05:260
149950,0migration/06021-21sendmail_mailqu09:46:190
149950,0migration/05633-21kthreadcore11:21:120
149950,0migration/04420-21latency_hist07:40:560
149950,0migration/031784-21kthreadcore12:51:140
149950,0migration/03038-21latency07:36:140
149950,0migration/026256-21cpuspeed_turbos10:01:090
149950,0migration/024519-21latency_hist09:00:560
149950,0migration/023598-21kthreadcore09:21:110
149950,0migration/022627-21fschecks_time10:36:100
149950,0migration/017503-21irqcore12:06:130
149950,0migration/017330-21kthreadcore12:41:150
149950,0migration/016029-21kthreadcore10:31:160
149950,0migration/015229-21timerwakeupswit08:06:220
149950,0migration/014995-21kthreadcore10:11:140
149950,0migration/014873-21hwlatdetect11:46:110
149950,0migration/014215-21latency_hist09:15:560
149950,0migration/012879-21latency09:11:130
149950,0migration/012410-21kthreadcore12:01:170
149950,0migration/010235-21taskset10:09:390
149950,0migration/010118-21aten_r1power_fr08:51:090
8305040,0irq/26-0000:00:6314-21runrttasks08:15:573
8305040,0irq/26-0000:00:0-21swapper/212:35:572
8305040,0irq/26-0000:00:0-21swapper/211:05:572
339940,0migration/332547-21sh12:14:253
339940,0migration/327688-21if_eth1.211:16:133
339940,0migration/327680-21fschecks_time12:31:093
339940,0migration/310618-21kthreadcore09:51:143
329940,0watchdog/30-21swapper/312:51:003
329940,0watchdog/30-21swapper/312:47:083
329940,0watchdog/30-21swapper/312:36:043
29815040,0irq/29-eth0-tx-971-21ssh12:16:072
29815040,0irq/29-eth0-tx-6892-21ssh10:46:002
29815040,0irq/29-eth0-tx-4554-21ssh10:25:592
29815040,0irq/29-eth0-tx-23056-21ssh12:07:012
29815040,0irq/29-eth0-tx-0-21swapper/212:01:092
29815040,0irq/29-eth0-tx-0-21swapper/211:36:162
29815040,0irq/29-eth0-tx-0-21swapper/211:31:132
29815040,0irq/29-eth0-tx-0-21swapper/211:21:542
29815040,0irq/29-eth0-tx-0-21swapper/211:16:062
29815040,0irq/29-eth0-tx-0-21swapper/210:36:032
29815040,0irq/29-eth0-tx-0-21swapper/210:30:582
29815040,0irq/29-eth0-tx-0-21swapper/210:11:072
29815040,0irq/29-eth0-tx-0-21swapper/210:01:102
29815040,0irq/29-eth0-tx-0-21swapper/209:51:032
29815040,0irq/29-eth0-tx-0-21swapper/008:18:300
29815040,0irq/29-eth0-tx-0-21swapper/008:02:440
29805040,0irq/28-eth0-rx-0-21swapper/311:46:143
29805040,0irq/28-eth0-rx-0-21swapper/311:36:143
29805040,0irq/28-eth0-rx-0-21swapper/307:41:143
259940,0migration/26700-21irqrtprio11:41:122
259940,0migration/230995-21kthreadcore07:56:142
259940,0migration/229780-21kthreadcore10:56:132
259940,0migration/22818-21kthreadcore12:51:152
259940,0migration/227347-21df_abs12:31:092
259940,0migration/222938-21kthreadcore08:36:132
259940,0migration/222663-21fschecks_count07:31:092
259940,0migration/220105-21kthreadcore08:56:142
259940,0migration/213998-21aten_r1power_po11:46:082
259940,0migration/21308-21kthreadcore07:36:132
249940,0watchdog/225188-21diskstats12:11:082
249940,0watchdog/218852-21munin-node11:11:122
249940,0watchdog/20-21swapper/208:16:152
179940,0migration/19251-21fschecks_count08:06:101
179940,0migration/18982-21kthreadcore08:26:141
179940,0migration/16417-21taskset09:07:171
179940,0migration/13642-21hwlatdetect08:46:101
179940,0migration/13426-21fschecks_count11:21:081
179940,0migration/130815-21kthreadcore10:21:131
179940,0migration/130438-21irqrtprio11:36:131
179940,0migration/130256-21fschecks_time07:36:091
179940,0migration/129594-21kthreadcore11:16:141
179940,0migration/128625-21kthreadcore09:41:161
179940,0migration/12820-21fschecks_count10:06:101
179940,0migration/128162-21kthreadcore09:01:171
179940,0migration/125655-21fschecks_time12:11:091
179940,0migration/122556-21kthreadcore12:46:141
179940,0migration/121349-21kthreadcore12:06:151
179940,0migration/119806-21taskset08:32:181
179940,0migration/119284-21kthreadcore08:56:141
179940,0migration/118033-21missed_timers12:41:151
179940,0migration/115095-21fschecks_time09:16:071
179940,0migration/112061-21kthreadcore12:21:161
169940,0watchdog/132186-21cut08:41:151
169940,0watchdog/120722-21munin-node10:16:121
169940,0watchdog/114263-21grep11:06:161
169940,0watchdog/114053-21perl10:31:121
169940,0watchdog/10-21swapper/112:01:121
169940,0watchdog/10-21swapper/110:41:161
169940,0watchdog/10-21swapper/110:01:031
146649943,0cyclictest3571-21lldpd12:27:042
146649943,0cyclictest3571-21lldpd10:06:032
146649943,0cyclictest3571-21lldpd09:41:032
146649943,0cyclictest3571-21lldpd09:11:322
146649943,0cyclictest3571-21lldpd08:26:302
146649943,0cyclictest3571-21lldpd08:13:002
146649943,0cyclictest3571-21lldpd08:09:302
146649943,0cyclictest3571-21lldpd07:48:302
146649943,0cyclictest3250-21irqbalance08:51:032
146649943,0cyclictest3250-21irqbalance08:46:432
146649943,0cyclictest31839-21awk08:21:122
146649943,0cyclictest28735-21awk08:41:122
146649943,0cyclictest25732-21awk09:01:142
146649943,0cyclictest2423-21awk08:01:122
146649943,0cyclictest12640-21awk11:26:142
146649940,0cyclictest0-21swapper/210:51:492
146639944,0cyclictest0-21swapper/107:43:251
146639943,0cyclictest695-21awk09:46:121
146639943,0cyclictest3571-21lldpd09:26:331
146639943,0cyclictest3524-21snmpd12:53:391
146639943,0cyclictest3524-21snmpd11:56:381
146639943,0cyclictest3524-21snmpd09:59:371
146639943,0cyclictest3524-21snmpd09:54:371
146639943,0cyclictest3524-21snmpd09:40:371
146639943,0cyclictest3524-21snmpd09:35:371
146639943,0cyclictest3524-21snmpd09:14:211
146639943,0cyclictest27517-21awk07:56:121
146639943,0cyclictest25449-21awk10:56:101
146639943,0cyclictest24491-21awk08:16:121
146639943,0cyclictest23254-21awk07:31:111
146639943,0cyclictest16687-21awk10:51:121
146639940,0cyclictest24622-21sh11:11:351
146639940,0cyclictest0-21swapper/109:21:001
146629944,0cyclictest0-21swapper/009:56:470
146629944,0cyclictest0-21swapper/008:24:230
146629943,0cyclictest6336-21awk11:41:110
146629943,0cyclictest3524-21snmpd11:27:080
146629943,0cyclictest3524-21snmpd10:44:080
146629943,0cyclictest21876-21awk12:46:130
146629943,0cyclictest21441-21irqcore11:31:120
149940,0migration/09819-21kthreadcore09:31:150
149940,0migration/08157-21kthreadcore08:26:140
149940,0migration/026804-21kthreadcore10:56:120
149940,0migration/017731-21latency_hist11:10:570
8305030,0irq/26-0000:00:0-21swapper/308:11:063
8305030,0irq/26-0000:00:0-21swapper/307:31:093
329930,0watchdog/30-21swapper/310:36:083
29815030,0irq/29-eth0-tx-0-21swapper/009:01:090
29815030,0irq/29-eth0-tx-0-21swapper/008:46:070
29815030,0irq/29-eth0-tx-0-21swapper/007:46:070
249930,0watchdog/224749-21kthreadcore09:21:112
249930,0watchdog/20-21swapper/208:31:152
249930,0watchdog/20-21swapper/207:41:072
169930,0watchdog/10-21swapper/108:21:151
169930,0watchdog/10-21swapper/107:46:071
146649932,0cyclictest542-21awk09:06:112
146649932,0cyclictest3571-21lldpd07:51:002
146649932,0cyclictest15466-21awk09:16:102
146639932,0cyclictest5260-21uniq10:26:111
146639932,0cyclictest21258-21awk11:31:111
146639932,0cyclictest20416-21grep07:26:141
146639932,0cyclictest20286-21cat08:35:561
146639930,0cyclictest8526-21kthreadcore11:41:131
146639930,0cyclictest8300-21irqcore10:46:131
146629932,0cyclictest9783-21sensors12:36:220
146629932,0cyclictest29456-21awk10:21:120
146629932,0cyclictest12556-21ssh10:29:420
146629932,0cyclictest10309-21awk11:06:120
149930,0migration/026578-21sh10:16:590
146629920,0cyclictest9715-21sh12:21:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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