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2026-04-12 - 21:38
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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 highest latencies:
System rack1slot2.osadl.org (updated Sun Apr 12, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2467225041,0sleep20-21swapper/207:19:442
2452525041,0sleep10-21swapper/107:18:031
2459824028,0sleep30-21swapper/307:18:533
2436123026,0sleep00-21swapper/007:16:100
29805070,0irq/28-eth0-rx-0-21swapper/310:20:093
35160,0ktimersoftd/320287-21cut11:00:203
35160,0ktimersoftd/30-21swapper/311:11:233
339960,0migration/35302-21latency_hist11:50:023
339960,0migration/328759-21missed_timers12:00:213
339960,0migration/328558-21munin-node12:40:173
339960,0migration/320415-21sh09:27:413
339960,0migration/31564-21sh11:26:213
29805060,0irq/28-eth0-rx-26997-21python11:40:223
29805060,0irq/28-eth0-rx-24294-21python10:05:243
29805060,0irq/28-eth0-rx-0-21swapper/310:30:313
247659966,0cyclictest0-21swapper/010:40:200
149960,0migration/07513-21latency_hist12:10:020
149960,0migration/05074-21munin-node10:50:230
149960,0migration/030411-21aten_r1power_fr09:35:130
149960,0migration/027295-21cpuspeed_turbos11:25:150
149960,0migration/018240-21latency_hist11:20:020
149960,0migration/017315-21kthreadcore09:05:190
149960,0migration/014583-21sh09:42:530
339950,0migration/36519-21kthreadcore11:30:193
339950,0migration/35490-21runrttasks10:50:293
339950,0migration/34459-21kthreadcore12:25:193
339950,0migration/34106-21munin-node12:45:173
339950,0migration/34032-21munin-node08:35:133
339950,0migration/331674-21cpuspeed_turbos12:05:143
339950,0migration/330729-21kthreadcore07:45:203
339950,0migration/32833-21kthreadcore08:55:193
339950,0migration/327805-21munin-node09:10:223
339950,0migration/327384-21kthreadcore08:05:173
339950,0migration/325362-21cpuspeed_turbos12:20:133
339950,0migration/325034-21taskset08:48:083
339950,0migration/324790-21munin-node12:35:213
339950,0migration/323928-21sh12:17:343
339950,0migration/323334-21kthreadcore09:30:183
339950,0migration/322738-21idleruntime08:25:153
339950,0migration/316176-21kthreadcore08:20:193
339950,0migration/313878-21aten_r1power_en10:40:133
339950,0migration/313033-21munin-node09:40:203
339950,0migration/312432-21kthreadcore12:10:243
339950,0migration/310417-21diskmemload10:17:293
339950,0migration/310198-21munin-node09:20:203
329950,0watchdog/331279-21mdstat08:50:203
329950,0watchdog/325810-21ssh11:22:373
329950,0watchdog/320856-21cut09:45:203
329950,0watchdog/315985-21memory12:30:213
29815050,0irq/29-eth0-tx-8966-21ssh12:27:542
29815050,0irq/29-eth0-tx-3760-21diskmemload12:17:542
29815050,0irq/29-eth0-tx-3233-21smartctl11:45:272
29815050,0irq/29-eth0-tx-2922-21ssh11:30:012
29815050,0irq/29-eth0-tx-26371-21cut11:40:182
29815050,0irq/29-eth0-tx-26157-21ssh12:20:162
29815050,0irq/29-eth0-tx-2102-21ssh11:10:192
29815050,0irq/29-eth0-tx-19143-21python09:25:252
29815050,0irq/29-eth0-tx-18716-21ssh10:21:372
29815050,0irq/29-eth0-tx-17938-21munin-node10:05:162
29815050,0irq/29-eth0-tx-0-21swapper/211:52:282
29815050,0irq/29-eth0-tx-0-21swapper/210:35:132
29815050,0irq/29-eth0-tx-0-21swapper/210:26:092
29815050,0irq/29-eth0-tx-0-21swapper/209:59:032
29815050,0irq/29-eth0-tx-0-21swapper/009:20:130
29815050,0irq/29-eth0-tx-0-21swapper/009:00:150
29815050,0irq/29-eth0-tx-0-21swapper/008:32:010
29805050,0irq/28-eth0-rx-32645-21diskstats07:25:133
29805050,0irq/28-eth0-rx-30963-21grep09:35:153
29805050,0irq/28-eth0-rx-30208-21cut11:05:193
29805050,0irq/28-eth0-rx-13564-21pluginstate10:55:213
29805050,0irq/28-eth0-rx-0-21swapper/311:57:283
29805050,0irq/28-eth0-rx-0-21swapper/311:50:173
29805050,0irq/28-eth0-rx-0-21swapper/311:37:033
29805050,0irq/28-eth0-rx-0-21swapper/311:15:133
29805050,0irq/28-eth0-rx-0-21swapper/310:45:203
29805050,0irq/28-eth0-rx-0-21swapper/310:38:223
29805050,0irq/28-eth0-rx-0-21swapper/310:12:523
29805050,0irq/28-eth0-rx-0-21swapper/310:01:203
259950,0migration/26671-21munin-node08:10:292
259950,0migration/226719-21irqcore08:50:182
259950,0migration/225446-21sh11:21:352
259950,0migration/225348-21kthreadcore12:00:192
259950,0migration/224505-21munin-node08:00:262
259950,0migration/224505-21munin-node08:00:262
259950,0migration/219346-21fschecks_time12:35:152
259950,0migration/217516-21kthreadcore11:55:192
259950,0migration/214815-21taskset12:11:142
259950,0migration/214768-21munin-node07:35:132
259950,0migration/214308-21sh09:42:042
259950,0migration/213454-21kthreadcore08:40:202
247679955,0cyclictest0-21swapper/211:17:452
247679955,0cyclictest0-21swapper/211:07:302
247679955,0cyclictest0-21swapper/210:03:112
247679955,0cyclictest0-21swapper/209:49:092
247679955,0cyclictest0-21swapper/209:34:482
247679950,0cyclictest0-21swapper/212:09:092
247679950,0cyclictest0-21swapper/211:30:222
247679950,0cyclictest0-21swapper/210:32:212
247669955,0cyclictest0-21swapper/109:30:211
247669950,0cyclictest0-21swapper/110:44:551
247659950,0cyclictest0-21swapper/007:35:240
249950,0watchdog/217052-21hwlatdetect11:00:172
179950,0migration/19835-21aten_r1power_vo11:15:111
179950,0migration/16273-21kthreadcore07:50:181
179950,0migration/122617-21kthreadcore10:05:191
179950,0migration/122474-21kthreadcore08:00:191
179950,0migration/122474-21kthreadcore08:00:191
179950,0migration/115674-21aten_r1power_en09:45:131
179950,0migration/111622-21kernelversion12:30:191
149950,0migration/09743-21sh12:30:020
149950,0migration/09452-21kthreadcore08:15:190
149950,0migration/0876-21taskset12:24:420
149950,0migration/08347-21kthreadcore11:30:200
149950,0migration/07106-21taskset07:30:040
149950,0migration/05734-21kthreadcore12:45:210
149950,0migration/04790-21kthreadcore10:15:180
149950,0migration/04104-21kthreadcore09:55:190
149950,0migration/032164-21kthreadcore10:10:190
149950,0migration/032053-21sh09:53:130
149950,0migration/029389-21fschecks_count10:30:150
149950,0migration/029282-21sh10:45:480
149950,0migration/027377-21aten_r1power_en12:40:120
149950,0migration/022648-21kthreadcore10:25:190
149950,0migration/022449-21fschecks_time09:30:150
149950,0migration/02240-21needreboot07:45:220
149950,0migration/019846-21kthreadcore11:00:200
149950,0migration/019372-21kthreadcore09:45:200
149950,0migration/017218-21sendmail_mailqu08:40:250
149950,0migration/016316-21kthreadcore09:25:200
149950,0migration/01591-21kthreadcore09:15:210
149950,0migration/010029-21kthreadcore12:10:230
8305040,0irq/26-0000:00:0-21swapper/212:45:102
339940,0migration/33190-21taskset08:31:113
339940,0migration/327891-21diskmemload09:50:193
339940,0migration/321793-21kthreadcore08:00:193
339940,0migration/321793-21kthreadcore08:00:193
339940,0migration/320943-21fschecks_time10:25:153
339940,0migration/317675-21taskset08:41:153
329940,0watchdog/332190-21tr09:15:203
329940,0watchdog/30-21swapper/307:34:123
29815040,0irq/29-eth0-tx-14562-21telnet08:20:130
29815040,0irq/29-eth0-tx-0-21swapper/212:30:112
29815040,0irq/29-eth0-tx-0-21swapper/211:37:362
29815040,0irq/29-eth0-tx-0-21swapper/210:15:122
29815040,0irq/29-eth0-tx-0-21swapper/209:50:502
29815040,0irq/29-eth0-tx-0-21swapper/209:35:572
29815040,0irq/29-eth0-tx-0-21swapper/008:00:120
29815040,0irq/29-eth0-tx-0-21swapper/008:00:120
29805040,0irq/28-eth0-rx-8724-21iostat_ios09:00:173
29805040,0irq/28-eth0-rx-0-21swapper/309:55:403
29805040,0irq/28-eth0-rx-0-21swapper/309:05:203
29805040,0irq/28-eth0-rx-0-21swapper/307:50:183
259940,0migration/23469-21runrttasks08:34:112
259940,0migration/232365-21kthreadcore10:10:192
259940,0migration/228952-21kthreadcore07:20:192
259940,0migration/228151-21kthreadcore08:05:182
259940,0migration/218230-21runrttasks08:45:082
247679944,0cyclictest0-21swapper/212:41:002
247679944,0cyclictest0-21swapper/210:40:142
247679944,0cyclictest0-21swapper/209:20:082
247679943,0cyclictest8678-21awk09:00:172
247679943,0cyclictest4993-21awk08:35:172
247679943,0cyclictest3571-21lldpd07:52:232
247679943,0cyclictest32634-21ps09:15:212
247679943,0cyclictest32227-21awk10:50:172
247679943,0cyclictest23590-21awk10:45:182
247679943,0cyclictest22839-21awk08:25:162
247679940,0cyclictest0-21swapper/208:17:142
247669944,0cyclictest0-21swapper/111:02:161
247669944,0cyclictest0-21swapper/110:17:201
247669943,0cyclictest8902-21awk12:10:211
247669943,0cyclictest8374-21awk08:15:171
247669943,0cyclictest8069-21awk09:40:161
247669943,0cyclictest4752-21awk12:45:191
247669943,0cyclictest3571-21lldpd12:25:551
247669943,0cyclictest3571-21lldpd12:23:251
247669943,0cyclictest3571-21lldpd11:55:551
247669943,0cyclictest3571-21lldpd11:25:551
247669943,0cyclictest3571-21lldpd11:22:551
247669943,0cyclictest3571-21lldpd11:05:551
247669943,0cyclictest3571-21lldpd09:56:541
247669943,0cyclictest3571-21lldpd08:57:531
247669943,0cyclictest3524-21snmpd09:22:211
247669943,0cyclictest3250-21irqbalance09:15:181
247669943,0cyclictest3250-21irqbalance07:40:171
247669943,0cyclictest3250-21irqbalance07:25:071
247669943,0cyclictest3250-21irqbalance07:20:371
247669943,0cyclictest30008-21awk08:30:171
247669943,0cyclictest28409-21awk12:40:161
247669943,0cyclictest23006-21awk09:10:181
247669943,0cyclictest17543-21awk12:15:171
247669943,0cyclictest15402-21awk07:35:161
247669943,0cyclictest13036-21awk11:35:151
247669943,0cyclictest12097-21awk08:40:181
247669940,0cyclictest0-21swapper/111:48:091
247659944,0cyclictest0-21swapper/012:15:240
247659943,0cyclictest3524-21snmpd11:59:070
247659943,0cyclictest25735-21awk11:05:160
247659943,0cyclictest23054-21awk09:10:190
247659940,0cyclictest3572-21munin-node07:50:190
247659940,0cyclictest0-21swapper/010:59:060
247659940,0cyclictest0-21swapper/008:50:150
249940,0watchdog/27595-21cpu10:55:132
249940,0watchdog/20-21swapper/209:10:162
249940,0watchdog/20-21swapper/207:45:202
179940,0migration/19092-21kthreadcore11:30:201
179940,0migration/17077-21latency_hist07:30:011
179940,0migration/14908-21kthreadcore12:05:211
179940,0migration/14769-21kthreadcore11:10:201
179940,0migration/132211-21kthreadcore10:30:201
179940,0migration/131426-21df10:50:141
179940,0migration/130129-21kthreadcore08:05:181
179940,0migration/127147-21fschecks_count10:10:141
179940,0migration/126608-21munin-node10:25:261
179940,0migration/126299-21fschecks_time08:50:151
179940,0migration/12380-21kthreadcore09:35:201
179940,0migration/123265-21kthreadcore08:45:201
179940,0migration/122733-21cpuspeed_turbos10:45:151
179940,0migration/114308-21taskset09:03:041
179940,0migration/112211-21fschecks_count10:20:141
169940,0watchdog/17593-21cpu10:55:131
169940,0watchdog/131430-21ssh09:51:291
169940,0watchdog/131130-21kthreadcore07:45:201
169940,0watchdog/130196-21ssh12:02:251
169940,0watchdog/115662-21python10:00:251
169940,0watchdog/10-21swapper/112:35:171
169940,0watchdog/10-21swapper/111:50:211
169940,0watchdog/10-21swapper/110:35:171
169940,0watchdog/10-21swapper/107:55:201
149940,0migration/05368-21kthreadcore08:55:200
149940,0migration/025492-21kthreadcore07:40:180
149940,0migration/021625-21diskmemload11:40:140
149940,0migration/020334-21kthreadcore08:45:190
149940,0migration/011108-21cpuspeed_turbos07:55:140
8305030,0irq/26-0000:00:0-21swapper/308:15:283
329930,0watchdog/30-21swapper/308:10:123
329930,0watchdog/30-21swapper/307:55:203
29815030,0irq/29-eth0-tx-0-21swapper/008:35:120
29815030,0irq/29-eth0-tx-0-21swapper/008:25:120
29815030,0irq/29-eth0-tx-0-21swapper/007:20:130
29805030,0irq/28-eth0-rx-0-21swapper/307:40:123
29805030,0irq/28-eth0-rx-0-21swapper/307:35:263
29805030,0irq/28-eth0-rx-0-21swapper/307:22:313
259930,0migration/227167-21kthreadcore07:40:192
247679932,0cyclictest3788-21kthreadcore07:25:182
247679932,0cyclictest1312-21awk08:55:172
247679930,0cyclictest0-21swapper/208:23:202
247669933,0cyclictest22800-21awk08:25:161
247669932,0cyclictest3571-21lldpd09:05:531
247669932,0cyclictest3571-21lldpd08:39:231
247669932,0cyclictest21764-21awk11:40:151
247669932,0cyclictest15646-21awk08:20:171
247659933,0cyclictest3571-21lldpd11:36:550
247659933,0cyclictest3571-21lldpd10:01:540
247659933,0cyclictest30434-21awk11:45:190
247659932,0cyclictest6306-21awk10:35:160
247659932,0cyclictest3760-21diskmemload12:03:290
247659932,0cyclictest3571-21lldpd10:20:250
247659932,0cyclictest32340-21aten2.4-expect07:25:120
247659932,0cyclictest24274-21sensors10:05:230
247659932,0cyclictest21311-21kthreadcore12:35:190
247659932,0cyclictest10766-21awk11:15:150
247659932,0cyclictest10446-21df_inode12:30:150
247659930,0cyclictest32192-21munin-run08:10:010
249930,0watchdog/20-21swapper/209:08:002
249930,0watchdog/20-21swapper/207:55:202
249930,0watchdog/20-21swapper/207:34:122
179930,0migration/112807-21sh09:25:091
169930,0watchdog/10-21swapper/108:10:201
247659921,0cyclictest5273-21sadc11:50:020
247659920,0cyclictest0-21swapper/011:10:130
247659920,0cyclictest0-21swapper/008:10:100
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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