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2026-03-22 - 17:40
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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 792 highest latencies:
System rack1slot2.osadl.org (updated Sun Mar 22, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2727623727,0sleep20-21swapper/207:17:312
2712423626,0sleep10-21swapper/107:15:461
2731823526,0sleep30-21swapper/307:18:003
2727923026,0sleep00-21swapper/007:17:330
27414991212,0cyclictest0-21swapper/009:19:330
29805070,0irq/28-eth0-rx-18651-21fschecks_time12:13:313
35160,0ktimersoftd/30-21swapper/312:03:443
339960,0migration/3981-21sh12:19:393
339960,0migration/330006-21irqrtprio11:23:343
339960,0migration/328635-21sh10:07:503
339960,0migration/32115-21sh09:51:053
339960,0migration/315735-21ntp_offset09:38:373
339960,0migration/310127-21munin-node12:08:323
29815060,0irq/29-eth0-tx-11623-21munin-run09:58:172
29805060,0irq/28-eth0-rx-7812-21diskstats10:33:303
29805060,0irq/28-eth0-rx-26921-21diskstats11:03:303
274239965,0cyclictest10256-21ps09:18:342
274239960,0cyclictest0-21swapper/209:08:362
274149966,0cyclictest0-21swapper/010:58:350
274149960,0cyclictest14973-21kthreadcore08:58:360
149960,0migration/09760-21sh11:09:220
149960,0migration/026327-21sh11:18:410
339950,0migration/37389-21kthreadcore07:23:363
339950,0migration/36495-21aten_r1power_cu08:33:283
339950,0migration/35175-21kthreadcore08:08:343
339950,0migration/331861-21kthreadcore10:08:333
339950,0migration/32883-21taskset08:53:243
339950,0migration/328625-21kthreadcore09:28:343
339950,0migration/326170-21runrttasks11:03:103
339950,0migration/324448-21munin-node09:43:363
339950,0migration/323885-21kthreadcore11:18:363
339950,0migration/321566-21runrttasks10:21:203
339950,0migration/316522-21kthreadcore12:28:353
339950,0migration/31634-21kthreadcore08:28:343
339950,0migration/316069-21fschecks_count11:53:313
339950,0migration/31596-21gltestperf09:33:283
339950,0migration/315761-21kthreadcore08:38:333
339950,0migration/313919-21taskset11:49:183
329950,0watchdog/35513-21sh10:28:483
329950,0watchdog/330581-21python08:23:403
329950,0watchdog/323137-21munin-node08:18:363
329950,0watchdog/313873-21diskstats07:53:323
329950,0watchdog/313573-21sh09:19:243
329950,0watchdog/312653-21ssh10:15:163
329950,0watchdog/30-21swapper/310:38:323
329950,0watchdog/30-21swapper/309:03:363
29815050,0irq/29-eth0-tx-25679-21interrupts10:43:342
29815050,0irq/29-eth0-tx-24633-21df_abs09:28:282
29815050,0irq/29-eth0-tx-24366-21munin-node08:23:360
29815050,0irq/29-eth0-tx-22454-21ssh09:24:482
29815050,0irq/29-eth0-tx-21694-21ssh10:21:462
29815050,0irq/29-eth0-tx-18877-21ssh12:31:212
29815050,0irq/29-eth0-tx-17169-21munin-node08:18:370
29815050,0irq/29-eth0-tx-16321-21ssh12:10:012
29815050,0irq/29-eth0-tx-0-21swapper/211:49:222
29815050,0irq/29-eth0-tx-0-21swapper/211:30:342
29815050,0irq/29-eth0-tx-0-21swapper/210:58:452
29815050,0irq/29-eth0-tx-0-21swapper/210:32:502
29815050,0irq/29-eth0-tx-0-21swapper/209:59:192
29815050,0irq/29-eth0-tx-0-21swapper/007:55:280
29815050,0irq/29-eth0-tx-0-21swapper/007:50:260
29815050,0irq/29-eth0-tx-0-21swapper/007:20:210
29805050,0irq/28-eth0-rx-8775-21ntp_states12:23:393
29805050,0irq/28-eth0-rx-7210-21kthreadcore09:53:353
29805050,0irq/28-eth0-rx-4536-21cut11:08:343
29805050,0irq/28-eth0-rx-24707-21munin-node10:43:303
29805050,0irq/28-eth0-rx-24666-21seq09:08:283
29805050,0irq/28-eth0-rx-21315-21diskstats08:43:323
29805050,0irq/28-eth0-rx-21315-21diskstats08:43:323
29805050,0irq/28-eth0-rx-12380-21kthreadcore08:58:363
29805050,0irq/28-eth0-rx-0-21swapper/312:43:563
29805050,0irq/28-eth0-rx-0-21swapper/312:38:293
29805050,0irq/28-eth0-rx-0-21swapper/311:38:353
29805050,0irq/28-eth0-rx-0-21swapper/311:33:043
29805050,0irq/28-eth0-rx-0-21swapper/311:13:313
29805050,0irq/28-eth0-rx-0-21swapper/310:53:393
29805050,0irq/28-eth0-rx-0-21swapper/310:53:043
29805050,0irq/28-eth0-rx-0-21swapper/310:23:353
29805050,0irq/28-eth0-rx-0-21swapper/309:59:303
29805050,0irq/28-eth0-rx-0-21swapper/309:25:433
274239955,0cyclictest0-21swapper/212:38:362
274239950,0cyclictest0-21swapper/209:42:012
274159955,0cyclictest0-21swapper/110:28:381
274159950,0cyclictest0-21swapper/110:47:151
274149955,0cyclictest0-21swapper/012:45:570
274149955,0cyclictest0-21swapper/010:28:280
274149950,0cyclictest0-21swapper/012:37:170
274149950,0cyclictest0-21swapper/012:28:360
274149950,0cyclictest0-21swapper/011:58:580
274149950,0cyclictest0-21swapper/010:05:080
259950,0migration/26931-21munin-node10:13:332
259950,0migration/25331-21kthreadcore10:48:362
259950,0migration/230436-21switchtime07:38:412
259950,0migration/228714-21fschecks_time08:03:312
259950,0migration/220780-21sh11:35:172
259950,0migration/21423-21kthreadcore09:13:372
259950,0migration/212027-21sh12:45:252
249950,0watchdog/24248-21ssh11:27:162
179950,0migration/15858-21gltestperf11:28:301
179950,0migration/1539-21kthreadcore08:03:361
179950,0migration/130315-21rt-features07:38:371
179950,0migration/124794-21kthreadcore10:03:341
179950,0migration/115098-21latency_hist09:23:171
179950,0migration/111780-21latency_hist09:58:171
169950,0watchdog/116693-21ssh11:53:331
149950,0migration/09410-21aten_r1power_fr10:53:320
149950,0migration/09177-21taskset09:37:530
149950,0migration/08962-21sh10:53:070
149950,0migration/07493-21fschecks_count11:48:300
149950,0migration/07255-21fschecks_time08:33:300
149950,0migration/07179-21kthreadcore09:53:350
149950,0migration/05622-21kthreadcore07:23:350
149950,0migration/05337-21kthreadcore08:53:360
149950,0migration/04168-21kthreadcore11:43:360
149950,0migration/04161-21kthreadcore09:13:380
149950,0migration/03508-21fschecks_time12:23:320
149950,0migration/032601-21kthreadcore10:08:340
149950,0migration/028726-21munin-node08:03:310
149950,0migration/026757-21kthreadcore09:08:340
149950,0migration/026380-21aten_r1power_en12:18:290
149950,0migration/025384-21kthreadcore10:23:350
149950,0migration/024587-21aten_r1power_po10:43:290
149950,0migration/01700-21irqcore12:03:340
149950,0migration/016928-21sh10:38:310
149950,0migration/015656-21sh10:38:150
149950,0migration/014233-21fschecks_count08:38:300
149950,0migration/011528-21aten_r1power_po11:13:290
149950,0migration/01107-21timerwakeupswit09:48:420
8305040,0irq/26-0000:00:0-21swapper/208:08:342
339940,0migration/35825-21runrttasks07:46:243
339940,0migration/34006-21kthreadcore11:43:363
339940,0migration/330632-21kthreadcore08:03:353
329940,0watchdog/30-21swapper/309:13:403
329940,0watchdog/30-21swapper/307:33:363
329940,0watchdog/30-21swapper/307:18:363
29815040,0irq/29-eth0-tx-3534-21sshd10:34:042
29815040,0irq/29-eth0-tx-26035-21kthreadcore11:58:352
29815040,0irq/29-eth0-tx-18416-21munin-node09:43:322
29815040,0irq/29-eth0-tx-10060-21ssh12:25:422
29815040,0irq/29-eth0-tx-0-21swapper/212:13:422
29815040,0irq/29-eth0-tx-0-21swapper/212:03:262
29815040,0irq/29-eth0-tx-0-21swapper/211:54:072
29815040,0irq/29-eth0-tx-0-21swapper/211:38:312
29815040,0irq/29-eth0-tx-0-21swapper/211:18:272
29815040,0irq/29-eth0-tx-0-21swapper/211:13:252
29815040,0irq/29-eth0-tx-0-21swapper/211:08:272
29815040,0irq/29-eth0-tx-0-21swapper/211:03:292
29815040,0irq/29-eth0-tx-0-21swapper/210:03:532
29815040,0irq/29-eth0-tx-0-21swapper/209:48:272
29815040,0irq/29-eth0-tx-0-21swapper/008:48:280
29815040,0irq/29-eth0-tx-0-21swapper/008:13:330
29815040,0irq/29-eth0-tx-0-21swapper/007:58:360
29815040,0irq/29-eth0-tx-0-21swapper/007:40:480
29805040,0irq/28-eth0-rx-0-21swapper/312:33:303
29805040,0irq/28-eth0-rx-0-21swapper/311:58:303
29805040,0irq/28-eth0-rx-0-21swapper/311:35:053
274239943,0cyclictest3571-21lldpd09:03:192
274239943,0cyclictest3571-21lldpd07:49:182
274239943,0cyclictest3571-21lldpd07:35:182
274239943,0cyclictest32479-21awk07:43:312
274239943,0cyclictest31895-21awk11:43:332
274239943,0cyclictest30123-21awk10:08:312
274239943,0cyclictest27417-21awk12:18:332
274239943,0cyclictest21999-21awk08:43:342
274239943,0cyclictest21999-21awk08:43:342
274239943,0cyclictest1745-21awk09:33:302
274239943,0cyclictest10527-21awk10:53:372
274159944,0cyclictest0-21swapper/107:18:401
274159943,0cyclictest8464-21awk10:33:321
274159943,0cyclictest4448-21awk09:53:331
274159943,0cyclictest3976-21awk08:53:341
274159943,0cyclictest3571-21lldpd12:43:231
274159943,0cyclictest3571-21lldpd12:23:221
274159943,0cyclictest3571-21lldpd11:34:211
274159943,0cyclictest3571-21lldpd11:09:511
274159943,0cyclictest3571-21lldpd10:50:201
274159943,0cyclictest3571-21lldpd10:21:191
274159943,0cyclictest3571-21lldpd10:08:191
274159943,0cyclictest3571-21lldpd09:34:191
274159943,0cyclictest3571-21lldpd09:17:481
274159943,0cyclictest3571-21lldpd08:51:481
274159943,0cyclictest29699-21awk11:23:331
274159943,0cyclictest21004-21awk12:33:341
274159943,0cyclictest16547-21awk09:23:321
274159943,0cyclictest14631-21awk07:53:351
274159940,0cyclictest0-21swapper/111:44:471
274159940,0cyclictest0-21swapper/111:03:571
274149944,0cyclictest0-21swapper/011:40:500
274149943,0cyclictest3524-21snmpd12:12:420
274149943,0cyclictest3524-21snmpd09:26:400
274149943,0cyclictest32699-21awk08:28:320
274149943,0cyclictest25304-21awk09:28:310
274149943,0cyclictest11067-21ps09:38:330
274149940,0cyclictest0-21swapper/007:28:290
259940,0migration/25145-21missed_timers08:28:362
259940,0migration/230903-21munin-node08:23:432
259940,0migration/229041-21irqrtprio07:18:342
259940,0migration/228134-21sh08:48:272
259940,0migration/226928-21kthreadcore10:23:352
259940,0migration/222612-21kthreadcore12:33:372
259940,0migration/218019-21fschecks_time08:18:302
259940,0migration/216568-21sshd07:31:532
259940,0migration/212319-21missed_timers08:33:352
259940,0migration/211747-21kthreadcore08:13:352
249940,0watchdog/23415-21fschecks_count08:53:322
249940,0watchdog/226833-21python07:58:402
249940,0watchdog/2202752sleep208:38:522
249940,0watchdog/219840-21timerwakeupswit07:53:442
249940,0watchdog/20-21swapper/210:38:322
249940,0watchdog/20-21swapper/208:58:322
249940,0watchdog/20-21swapper/207:23:322
179940,0migration/19547-21kthreadcore07:48:351
179940,0migration/127947-21kernelversion12:18:361
179940,0migration/124759-21kthreadcore08:43:371
179940,0migration/124759-21kthreadcore08:43:371
179940,0migration/123870-21taskset08:20:191
179940,0migration/123118-21fschecks_count10:23:301
179940,0migration/12026-21missed_timers12:38:361
179940,0migration/120039-21kthreadcore12:13:351
179940,0migration/119880-21irqrtprio09:43:341
179940,0migration/118834-21gltestperf10:58:311
179940,0migration/118680-21kthreadcore08:38:341
179940,0migration/117811-21forks09:03:301
179940,0migration/115717-21kthreadcore11:13:351
179940,0migration/113595-21kthreadcore12:28:341
179940,0migration/112434-21kthreadcore08:13:351
179940,0migration/111597-21kthreadcore09:38:341
179940,0migration/111513-21kthreadcore07:28:331
179940,0migration/110551-21munin-node10:53:371
169940,0watchdog/17691-21ssh12:05:051
169940,0watchdog/13334-21gltestperf07:23:321
169940,0watchdog/131365-21ssh09:29:441
169940,0watchdog/126795-21ssh11:19:001
169940,0watchdog/117043-21if_err_eth1.310:38:321
169940,0watchdog/115915-21ssh12:08:531
169940,0watchdog/114805-21ps11:51:491
169940,0watchdog/11442-21ssh09:49:121
169940,0watchdog/10-21swapper/108:58:321
169940,0watchdog/10-21swapper/107:33:361
149940,0migration/07168-21kthreadcore10:13:340
149940,0migration/028616-21kthreadcore11:03:340
149940,0migration/021851-21gltestperf08:43:330
149940,0migration/021851-21gltestperf08:43:330
149940,0migration/018114-21df_abs12:13:300
149940,0migration/016588-21kthreadcore10:18:350
149940,0migration/016586-21kthreadcore09:58:350
149940,0migration/015782-21cpu11:53:290
4130,0ktimersoftd/025170-21sh09:43:470
329930,0watchdog/30-21swapper/308:48:283
329930,0watchdog/30-21swapper/307:58:403
329930,0watchdog/30-21swapper/307:38:283
29805030,0irq/28-eth0-rx-0-21swapper/308:13:293
29805030,0irq/28-eth0-rx-0-21swapper/307:48:283
29805030,0irq/28-eth0-rx-0-21swapper/307:32:343
274159932,0cyclictest7528-21awk08:33:321
274159932,0cyclictest3804-21awk08:08:321
274159932,0cyclictest3571-21lldpd07:58:181
274159932,0cyclictest25335-21awk11:58:341
274159930,0cyclictest6251-21perl10:13:301
274159930,0cyclictest30785-21python09:08:401
274149932,0cyclictest6074-21awk11:28:330
274149932,0cyclictest6026-21cat07:48:170
274149932,0cyclictest3571-21lldpd08:08:180
274149932,0cyclictest29723-21awk11:23:330
274149932,0cyclictest29621-21awk12:38:330
274149932,0cyclictest23570-21sensors09:03:390
274149932,0cyclictest19862-21sensors11:33:420
274149932,0cyclictest17978-21awk07:33:340
179930,0migration/15969-21runrttasks08:30:131
169930,0watchdog/10-21swapper/111:41:411
274159921,0cyclictest24311-21cat08:23:171
169920,0watchdog/10-21swapper/107:43:201
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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