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2026-04-02 - 14:00
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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 Thu Apr 02, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
970123826,0sleep30-21swapper/307:17:073
975623727,0sleep20-21swapper/207:17:462
947923725,0sleep00-21swapper/007:14:360
962823425,0sleep10-21swapper/107:16:171
99529976,0cyclictest27500-21kthreadcore11:54:301
99539965,0cyclictest2311-21sort11:59:282
99529965,0cyclictest20056-21diskstats09:59:241
4160,0ktimersoftd/00-21swapper/009:55:230
35160,0ktimersoftd/30-21swapper/309:55:233
339960,0migration/39808-21sh12:19:493
339960,0migration/38079-21sh09:33:523
339960,0migration/34418-21latency_hist10:09:123
339960,0migration/329977-21sh11:37:223
339960,0migration/327667-21sh12:31:313
339960,0migration/325781-21kthreadcore10:39:273
339960,0migration/325425-21sh09:43:293
339960,0migration/323812-21sh11:53:013
339960,0migration/321387-21latency_hist08:39:113
339960,0migration/319784-21sh11:14:063
339960,0migration/315766-21munin-node12:04:353
339960,0migration/311910-21munin-node12:39:383
329960,0watchdog/331480-21hwlatdetect10:24:273
329960,0watchdog/32436-21munin-node09:49:233
29805060,0irq/28-eth0-rx-0-21swapper/310:45:293
19160,0ktimersoftd/114260-21diskmemload09:55:231
149960,0migration/05148-21sh10:25:200
149960,0migration/03148-21sh10:06:150
149960,0migration/022868-21kthreadcore10:54:290
149960,0migration/016681-21fschecks_time11:49:260
99539955,0cyclictest0-21swapper/211:21:122
99539954,0cyclictest26284-21awk09:04:272
99539950,0cyclictest0-21swapper/209:50:512
99529955,0cyclictest23594-21sensors09:39:331
99529954,0cyclictest3524-21snmpd07:56:001
99529950,0cyclictest0-21swapper/112:35:291
99529950,0cyclictest0-21swapper/112:31:421
99529950,0cyclictest0-21swapper/111:31:001
99529950,0cyclictest0-21swapper/110:24:571
99519954,0cyclictest0-21swapper/008:19:250
99519953,0cyclictest10149-21kworker/0:012:34:480
99519953,0cyclictest10149-21kworker/0:012:33:480
99519953,0cyclictest10149-21kworker/0:011:47:390
99519953,0cyclictest10149-21kworker/0:011:04:330
4150,0ktimersoftd/00-21swapper/009:24:220
339950,0migration/38351-21irqcore08:29:273
339950,0migration/35954-21kthreadcore08:49:293
339950,0migration/3566-21timerwakeupswit10:59:373
339950,0migration/34605-21kthreadcore09:09:293
339950,0migration/331224-21kthreadcore09:44:303
339950,0migration/331188-21munin-node09:04:313
339950,0migration/330182-21runrttasks09:25:203
339950,0migration/32943-21timerandwakeup12:34:363
339950,0migration/325077-21sh12:10:343
339950,0migration/324686-21taskset08:18:033
339950,0migration/32364-21kthreadcore11:59:283
339950,0migration/32358-21proc_pri08:44:323
339950,0migration/322750-21kthreadcore10:54:293
339950,0migration/321986-21sh10:19:243
339950,0migration/318080-21taskset07:29:243
339950,0migration/315850-21df_abs10:34:243
339950,0migration/315078-21kthreadcore08:04:253
339950,0migration/314766-21cpuspeed_turbos09:19:253
339950,0migration/314529-21fschecks_time12:44:263
339950,0migration/313303-21kthreadcore08:54:283
339950,0migration/312027-21kthreadcore10:49:283
339950,0migration/310371-21kthreadcore09:34:293
329950,0watchdog/38787-21cat11:04:313
329950,0watchdog/32013-21aten_r1power_cu07:54:183
29815050,0irq/29-eth0-tx-5270-21unixbench_singl11:39:372
29815050,0irq/29-eth0-tx-2735-21munin-node11:04:292
29815050,0irq/29-eth0-tx-25158-21munin-node09:04:270
29815050,0irq/29-eth0-tx-22917-21kthreadcore09:39:302
29815050,0irq/29-eth0-tx-19627-21munin-node09:59:332
29815050,0irq/29-eth0-tx-18063-21munin-node12:09:322
29815050,0irq/29-eth0-tx-0-21swapper/210:49:272
29815050,0irq/29-eth0-tx-0-21swapper/210:35:472
29815050,0irq/29-eth0-tx-0-21swapper/209:35:392
29815050,0irq/29-eth0-tx-0-21swapper/209:33:332
29815050,0irq/29-eth0-tx-0-21swapper/008:14:220
29815050,0irq/29-eth0-tx-0-21swapper/008:12:090
29815050,0irq/29-eth0-tx-0-21swapper/007:32:090
29805050,0irq/28-eth0-rx-32143-21interrupts11:39:283
29805050,0irq/28-eth0-rx-24697-21cpu11:54:243
29805050,0irq/28-eth0-rx-18516-21ssh12:25:033
29805050,0irq/28-eth0-rx-13356-21ntpq11:44:333
29805050,0irq/28-eth0-rx-0-21swapper/312:14:323
29805050,0irq/28-eth0-rx-0-21swapper/311:31:213
29805050,0irq/28-eth0-rx-0-21swapper/311:22:423
29805050,0irq/28-eth0-rx-0-21swapper/310:33:453
29805050,0irq/28-eth0-rx-0-21swapper/310:16:003
29805050,0irq/28-eth0-rx-0-21swapper/310:04:283
27150,0ktimersoftd/20-21swapper/210:16:522
259950,0migration/228753-21timerandwakeup11:34:382
259950,0migration/225328-21kthreadcore09:24:282
259950,0migration/225211-21idleruntime10:39:252
259950,0migration/21096-21if_eth1.209:09:272
249950,0watchdog/25210-21ssh11:24:232
19150,0ktimersoftd/10-21swapper/111:41:101
179950,0migration/128571-21latency_hist08:44:111
179950,0migration/114044-21kthreadcore12:24:271
149950,0migration/09473-21cpuspeed_turbos10:49:230
149950,0migration/0925-21sh11:00:030
149950,0migration/05254-21aten_r1power_fr12:39:230
149950,0migration/0525-21aten_r1power_vo10:44:240
149950,0migration/031451-21kthreadcore11:19:290
149950,0migration/031226-21cpuspeed_turbos11:39:240
149950,0migration/030473-21missed_timers11:54:310
149950,0migration/027682-21if_eth107:44:220
149950,0migration/026134-21kthreadcore11:34:310
149950,0migration/026003-21munin-node09:44:230
149950,0migration/024576-21munin-node10:39:230
149950,0migration/024426-21kthreadcore08:39:290
149950,0migration/02427-21sendmail_mailqu08:44:320
149950,0migration/022349-21sh10:34:550
149950,0migration/020090-21irqcore07:34:240
149950,0migration/019411-21taskset11:13:030
149950,0migration/019027-21kthreadcore09:39:280
149950,0migration/019007-21gltestperf12:09:260
149950,0migration/018403-21munin-node08:59:250
149950,0migration/017439-21taskset12:08:130
149950,0migration/016456-21unixbench_multi08:04:320
149950,0migration/016377-21kthreadcore08:34:280
149950,0migration/015930-21kthreadcore12:24:270
149950,0migration/015731-21munin-node09:19:290
149950,0migration/014155-21fschecks_count11:29:250
149950,0migration/014103-21gltestperf10:14:250
149950,0migration/013516-21kthreadcore09:34:300
149950,0migration/011954-21kthreadcore08:29:290
149950,0migration/010597-21latency_hist08:54:110
149950,0migration/010582-21kthreadcore11:24:290
149950,0migration/010267-21taskset09:53:010
149950,0migration/010086-21kthreadcore10:29:290
99539943,0cyclictest868-21awk08:24:252
99539943,0cyclictest7939-21awk10:29:272
99539943,0cyclictest4661-21awk08:49:272
99539943,0cyclictest3571-21lldpd12:40:422
99539943,0cyclictest3571-21lldpd11:50:112
99539943,0cyclictest3571-21lldpd08:46:102
99539943,0cyclictest3571-21lldpd07:30:092
99539943,0cyclictest3250-21irqbalance09:19:282
99539943,0cyclictest3250-21irqbalance09:14:582
99539943,0cyclictest3250-21irqbalance08:19:282
99539943,0cyclictest3250-21irqbalance08:14:182
99539943,0cyclictest3250-21irqbalance08:09:182
99539943,0cyclictest3250-21irqbalance08:00:082
99539943,0cyclictest3250-21irqbalance07:49:182
99539943,0cyclictest3250-21irqbalance07:40:282
99539943,0cyclictest3250-21irqbalance07:36:082
99539943,0cyclictest3250-21irqbalance07:24:582
99539943,0cyclictest3250-21irqbalance07:19:182
99539943,0cyclictest27708-21awk07:44:222
99539943,0cyclictest21208-21awk11:14:282
99539943,0cyclictest20292-21munin-node12:29:252
99539943,0cyclictest15463-21awk08:34:272
99539943,0cyclictest14874-21awk11:29:272
99539940,0cyclictest2921-21munin-node12:19:242
99529944,0cyclictest0-21swapper/112:03:101
99529944,0cyclictest0-21swapper/111:09:151
99529944,0cyclictest0-21swapper/110:48:071
99529944,0cyclictest0-21swapper/110:39:551
99529944,0cyclictest0-21swapper/109:28:301
99529943,0cyclictest9625-21awk09:34:271
99529943,0cyclictest8409-21awk09:14:271
99529943,0cyclictest7955-21awk10:29:271
99529943,0cyclictest713-21awk09:29:271
99529943,0cyclictest4255-21sadc10:09:121
99529943,0cyclictest3571-21lldpd09:20:101
99529943,0cyclictest3571-21lldpd09:09:401
99529943,0cyclictest3571-21lldpd08:59:101
99529943,0cyclictest3571-21lldpd08:37:091
99529943,0cyclictest3524-21snmpd08:14:311
99529943,0cyclictest29762-21awk08:44:261
99529943,0cyclictest16587-21awk10:34:271
99529943,0cyclictest14395-21awk10:14:281
99529943,0cyclictest10361-21awk10:49:271
99529940,0cyclictest0-21swapper/111:02:001
99519944,0cyclictest1142-21kworker/0:107:23:090
99519944,0cyclictest0-21swapper/009:59:130
99519943,0cyclictest3571-21lldpd09:12:100
99519943,0cyclictest17729-21sadc08:59:110
99519943,0cyclictest14921-21awk12:44:270
99519943,0cyclictest11886-21awk07:24:220
99519942,0cyclictest10947-21kworker/0:109:30:090
99519942,0cyclictest10149-21kworker/0:012:02:480
99519942,0cyclictest10149-21kworker/0:011:14:290
8305040,0irq/26-0000:00:13783-21latency_hist12:44:132
8305040,0irq/26-0000:00:0-21swapper/307:19:113
339940,0migration/328128-21taskset08:40:343
339940,0migration/317279-21taskset08:10:203
29815040,0irq/29-eth0-tx-7281-21munin-node09:14:260
29815040,0irq/29-eth0-tx-24470-21ssh11:54:132
29815040,0irq/29-eth0-tx-11470-21telnet11:09:242
29815040,0irq/29-eth0-tx-0-21swapper/212:34:242
29815040,0irq/29-eth0-tx-0-21swapper/212:25:082
29815040,0irq/29-eth0-tx-0-21swapper/212:14:322
29815040,0irq/29-eth0-tx-0-21swapper/210:44:392
29815040,0irq/29-eth0-tx-0-21swapper/210:19:422
29815040,0irq/29-eth0-tx-0-21swapper/210:04:252
29815040,0irq/29-eth0-tx-0-21swapper/209:44:152
29815040,0irq/29-eth0-tx-0-21swapper/007:55:390
29805040,0irq/28-eth0-rx-0-21swapper/311:24:143
29805040,0irq/28-eth0-rx-0-21swapper/311:15:363
29805040,0irq/28-eth0-rx-0-21swapper/309:59:293
29805040,0irq/28-eth0-rx-0-21swapper/309:14:303
29805040,0irq/28-eth0-rx-0-21swapper/307:39:123
259940,0migration/27102-21latency_hist08:29:122
259940,0migration/24500-21taskset10:09:162
259940,0migration/231409-21gltestperf10:24:262
259940,0migration/228476-21kthreadcore10:59:292
259940,0migration/224664-21runrttasks09:01:142
259940,0migration/22425-21df_abs07:54:202
259940,0migration/221506-21runrttasks08:39:212
259940,0migration/219007-21munin-node10:54:272
259940,0migration/211088-21aten_r1power_po09:54:232
249940,0watchdog/214122-21ssh11:45:072
249940,0watchdog/210037-21telnet08:04:182
249940,0watchdog/20-21swapper/212:04:312
249940,0watchdog/20-21swapper/208:54:272
179940,0migration/19040-21kthreadcore11:44:301
179940,0migration/16528-21irqrtprio11:24:281
179940,0migration/131571-21runrttasks09:04:361
179940,0migration/126081-21taskset07:41:281
179940,0migration/124654-21taskset09:01:091
179940,0migration/123315-21kthreadcore12:09:301
179940,0migration/120758-21kthreadcore07:34:241
179940,0migration/11910-21runrttasks12:17:161
179940,0migration/117579-21runrttasks12:08:391
149940,0migration/0324-21sh12:14:340
99529933,0cyclictest3571-21lldpd08:12:091
99529933,0cyclictest0-21swapper/112:39:161
99529932,0cyclictest9277-21sort07:59:121
99529932,0cyclictest8335-21grep08:29:271
99529932,0cyclictest4597-21awk08:49:261
99529932,0cyclictest29500-21tune2fs11:19:251
99529932,0cyclictest2735-21munin-node11:04:231
99529932,0cyclictest27135-21tune2fs07:44:201
99529932,0cyclictest26378-21irqcore08:19:281
99529932,0cyclictest23271-21grep11:34:261
99529932,0cyclictest22942-21awk10:19:281
99529932,0cyclictest21779-21grep11:14:291
99529932,0cyclictest18619-21grep10:54:251
99529932,0cyclictest18124-21taskset07:29:551
99529932,0cyclictest16205-21tr11:49:251
99529932,0cyclictest10078-21cut08:04:191
99529931,0cyclictest4401-21cat10:09:121
99529931,0cyclictest26699-21tune2fs09:44:251
99529930,0cyclictest14299-21diskstats12:44:251
99519933,0cyclictest10845-21kworker/0:207:59:190
99519933,0cyclictest10845-21kworker/0:207:49:190
99519933,0cyclictest10845-21kworker/0:207:39:410
99519933,0cyclictest10149-21kworker/0:012:19:440
99519932,0cyclictest5596-21awk10:09:260
99519932,0cyclictest32397-21egrep08:24:220
99519932,0cyclictest23218-21sed10:19:290
8305030,0irq/26-0000:00:0-21swapper/308:20:123
339930,0migration/31369-21taskset07:49:373
329930,0watchdog/30-21swapper/308:59:273
329930,0watchdog/30-21swapper/308:24:313
329930,0watchdog/30-21swapper/307:24:143
29805030,0irq/28-eth0-rx-0-21swapper/307:34:193
179930,0migration/132353-21aten_r1power_po08:24:211
179930,0migration/113137-21kthreadcore07:24:241
179930,0migration/110193-21runrttasks07:19:431
169930,0watchdog/16314-21runrttasks07:53:261
169930,0watchdog/10-21swapper/112:19:231
169930,0watchdog/10-21swapper/109:49:271
329920,0watchdog/30-21swapper/307:59:143
329920,0watchdog/30-21swapper/307:44:143
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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