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2026-07-23 - 16:14
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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 Jul 23, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
367324939,0sleep10-21swapper/107:28:161
2913124039,0sleep00-21swapper/007:23:270
328623627,0sleep30-21swapper/307:24:063
345823526,0sleep20-21swapper/207:25:572
3757991111,0cyclictest3524-21snmpd08:11:590
37739970,0cyclictest0-21swapper/211:18:242
29815070,0irq/29-eth0-tx-0-21swapper/211:28:482
37669966,0cyclictest0-21swapper/107:48:471
339960,0migration/35636-21sh12:11:543
339960,0migration/330773-21sh10:51:403
339960,0migration/328116-21munin-node12:03:473
339960,0migration/319638-21munin-node11:23:413
339960,0migration/31111-21sh12:48:303
29815060,0irq/29-eth0-tx-25740-21munin-node08:28:370
29815060,0irq/29-eth0-tx-18409-21munin-node07:38:410
29805060,0irq/28-eth0-rx-27501-21cut11:08:413
29805060,0irq/28-eth0-rx-22176-21cut10:28:373
29805060,0irq/28-eth0-rx-20854-21perl11:43:383
29805060,0irq/28-eth0-rx-17615-21iostat11:03:403
29805060,0irq/28-eth0-rx-16008-21rt-features12:53:433
29805060,0irq/28-eth0-rx-0-21swapper/311:36:313
149960,0migration/09316-21kthreadcore12:13:400
149960,0migration/06619-21sh12:29:500
149960,0migration/026638-21fschecks_time09:13:390
149960,0migration/02369-21sh11:32:460
149960,0migration/014693-21kthreadcore07:33:420
149960,0migration/01322-21fschecks_time08:33:370
8305050,0irq/26-0000:00:11184-21latency_hist07:33:233
8305050,0irq/26-0000:00:0-21swapper/211:48:242
37739955,0cyclictest0-21swapper/212:15:472
37739955,0cyclictest0-21swapper/209:08:482
37669955,0cyclictest0-21swapper/112:05:271
37669955,0cyclictest0-21swapper/111:59:001
37669955,0cyclictest0-21swapper/109:46:151
37669955,0cyclictest0-21swapper/109:03:501
37669950,0cyclictest0-21swapper/111:33:271
37669950,0cyclictest0-21swapper/111:10:071
37669950,0cyclictest0-21swapper/110:06:261
37579955,0cyclictest0-21swapper/009:03:340
37579954,0cyclictest11167-21sh11:38:240
339950,0migration/39121-21kthreadcore10:18:433
339950,0migration/37741-21kthreadcore08:58:403
339950,0migration/36938-21fschecks_time10:38:363
339950,0migration/36643-21taskset10:55:453
339950,0migration/35573-21diskmemload10:37:463
339950,0migration/35211-21fschecks_count11:53:383
339950,0migration/34001-21kthreadcore12:28:433
339950,0migration/328784-21kthreadcore11:28:403
339950,0migration/319923-21irqcore08:23:403
339950,0migration/31907-21munin-node07:48:393
339950,0migration/318839-21munin-node09:08:353
339950,0migration/318478-21turbostat09:08:233
339950,0migration/318129-21munin-node09:48:373
339950,0migration/317603-21idleruntime12:38:393
339950,0migration/314366-21munin-node11:58:403
339950,0migration/314164-21processes09:23:443
339950,0migration/31407-21kthreadcore08:53:423
339950,0migration/313534-21taskset12:15:103
339950,0migration/311955-21fschecks_count11:38:373
339950,0migration/310999-21taskset10:03:283
329950,0watchdog/36674-21memory09:18:423
329950,0watchdog/314772-21kthreadcore10:23:383
329950,0watchdog/314156-21munin-node12:33:433
329950,0watchdog/313460-21latency07:53:423
329950,0watchdog/30-21swapper/308:13:423
29815050,0irq/29-eth0-tx-7860-21ssh09:41:252
29815050,0irq/29-eth0-tx-6839-21ssh12:30:282
29815050,0irq/29-eth0-tx-30233-21ssh12:08:322
29815050,0irq/29-eth0-tx-27624-21kthreadcore12:23:442
29815050,0irq/29-eth0-tx-15266-21ssh09:28:300
29815050,0irq/29-eth0-tx-11896-21fschecks_count11:38:372
29815050,0irq/29-eth0-tx-0-21swapper/212:18:322
29815050,0irq/29-eth0-tx-0-21swapper/212:03:152
29815050,0irq/29-eth0-tx-0-21swapper/211:06:292
29815050,0irq/29-eth0-tx-0-21swapper/211:01:552
29815050,0irq/29-eth0-tx-0-21swapper/210:44:162
29815050,0irq/29-eth0-tx-0-21swapper/210:34:412
29815050,0irq/29-eth0-tx-0-21swapper/210:23:332
29815050,0irq/29-eth0-tx-0-21swapper/210:20:012
29815050,0irq/29-eth0-tx-0-21swapper/209:34:252
29815050,0irq/29-eth0-tx-0-21swapper/008:18:370
29815050,0irq/29-eth0-tx-0-21swapper/008:03:020
29815050,0irq/29-eth0-tx-0-21swapper/007:51:370
29815050,0irq/29-eth0-tx-0-21swapper/007:45:580
29805050,0irq/28-eth0-rx-27572-21kthreadcore12:43:403
29805050,0irq/28-eth0-rx-25821-21kthreadcore09:33:423
29805050,0irq/28-eth0-rx-1841-21grep11:48:433
29805050,0irq/28-eth0-rx-0-21swapper/311:16:163
29805050,0irq/28-eth0-rx-0-21swapper/310:43:233
29805050,0irq/28-eth0-rx-0-21swapper/310:09:343
29805050,0irq/28-eth0-rx-0-21swapper/309:53:403
29805050,0irq/28-eth0-rx-0-21swapper/309:38:413
27150,0ktimersoftd/20-21swapper/210:39:422
259950,0migration/28603-21fschecks_count12:33:372
259950,0migration/232544-21sa107:48:222
259950,0migration/228858-21sh10:31:192
259950,0migration/226848-21fschecks_count09:53:372
259950,0migration/225194-21kthreadcore08:48:412
259950,0migration/221683-21latency_hist12:03:242
259950,0migration/221469-21kthreadcore09:48:422
259950,0migration/210943-21latency_hist10:03:232
259950,0migration/210843-21munin-node11:18:402
249950,0watchdog/210138-21df_inode12:53:352
249950,0watchdog/20-21swapper/208:13:422
179950,0migration/18913-21kthreadcore10:38:401
179950,0migration/16951-21kthreadcore11:53:421
179950,0migration/1693-21munin-node09:18:341
179950,0migration/12794-21needreboot08:08:431
179950,0migration/118007-21kthreadcore08:43:411
179950,0migration/11712-21munin-node08:33:401
169950,0watchdog/18958-21if_eth108:38:381
169950,0watchdog/129796-21ssh10:33:261
169950,0watchdog/10-21swapper/108:53:381
149950,0migration/09044-21taskset11:17:210
149950,0migration/08760-21fschecks_time12:33:370
149950,0migration/08668-21hwlatdetect07:53:380
149950,0migration/05771-21kthreadcore08:13:410
149950,0migration/05612-21gltestperf11:53:390
149950,0migration/032250-21kthreadcore11:48:420
149950,0migration/031518-21unixbench-2d11:08:490
149950,0migration/031439-21kthreadcore08:53:420
149950,0migration/029704-21kthreadcore10:13:380
149950,0migration/028135-21kthreadcore09:53:400
149950,0migration/02736-21kernelversion12:48:390
149950,0migration/026631-21kthreadcore12:23:430
149950,0migration/023360-21taskset11:04:400
149950,0migration/022608-21taskset12:21:520
149950,0migration/020913-21kthreadcore09:48:420
149950,0migration/020573-21kthreadcore08:23:410
149950,0migration/019129-21df_abs09:08:360
149950,0migration/018369-21aten_r1power_vo11:23:370
149950,0migration/014381-21munin-node09:23:480
149950,0migration/014136-21kthreadcore11:38:410
149950,0migration/01355-21irqcore09:38:390
8305040,0irq/26-0000:00:0-21swapper/209:18:232
37739944,0cyclictest0-21swapper/208:33:392
37739944,0cyclictest0-21swapper/208:28:362
37739943,0cyclictest3524-21snmpd10:09:452
37739943,0cyclictest3524-21snmpd09:24:442
37739943,0cyclictest3524-21snmpd09:05:142
37739943,0cyclictest3524-21snmpd08:44:442
37739943,0cyclictest3524-21snmpd08:25:442
37739943,0cyclictest3524-21snmpd08:10:442
37739943,0cyclictest3524-21snmpd07:37:432
37739943,0cyclictest3524-21snmpd07:28:432
37739943,0cyclictest17659-21awk12:38:392
37739943,0cyclictest12455-21awk08:18:372
37669944,0cyclictest0-21swapper/110:44:351
37669944,0cyclictest0-21swapper/109:59:391
37669943,0cyclictest5295-21awk10:18:391
37669943,0cyclictest5176-21awk08:13:391
37669943,0cyclictest3524-21snmpd12:47:021
37669943,0cyclictest3524-21snmpd12:23:311
37669943,0cyclictest3524-21snmpd09:25:291
37669943,0cyclictest3524-21snmpd08:24:291
37669943,0cyclictest29198-21awk10:13:371
37669943,0cyclictest26814-21awk08:28:391
37669943,0cyclictest22474-21awk10:28:391
37669943,0cyclictest20691-21awk10:08:391
37669943,0cyclictest16000-21awk12:18:391
37669943,0cyclictest15950-21awk07:58:381
37669943,0cyclictest12544-21awk11:38:391
37579944,0cyclictest0-21swapper/012:03:370
37579944,0cyclictest0-21swapper/008:51:350
37579943,0cyclictest8919-21awk10:58:390
37579943,0cyclictest5328-21awk10:18:400
37579943,0cyclictest3524-21snmpd10:33:150
37579943,0cyclictest3524-21snmpd08:59:590
37579943,0cyclictest32761-21awk10:53:380
37579943,0cyclictest31408-21kworker/0:012:54:350
37579943,0cyclictest26171-21awk12:43:380
37579943,0cyclictest24226-21awk10:48:390
37579943,0cyclictest15025-21munin-node08:43:370
37579943,0cyclictest12104-21awk10:03:400
339940,0migration/39287-21df_abs09:43:373
339940,0migration/38468-21mdstat09:58:413
339940,0migration/332328-21taskset08:29:023
339940,0migration/332100-21unixbench_singl07:43:483
339940,0migration/331639-21kthreadcore08:08:413
339940,0migration/324874-21kthreadcore08:03:413
329940,0watchdog/311565-21munin-node08:18:343
329940,0watchdog/30-21swapper/308:33:343
29815040,0irq/29-eth0-tx-3524-21snmpd07:30:550
29815040,0irq/29-eth0-tx-18217-21munin-node11:23:422
29815040,0irq/29-eth0-tx-0-21swapper/212:48:292
29815040,0irq/29-eth0-tx-0-21swapper/211:53:272
29815040,0irq/29-eth0-tx-0-21swapper/211:43:382
29815040,0irq/29-eth0-tx-0-21swapper/211:33:372
29815040,0irq/29-eth0-tx-0-21swapper/210:54:442
29815040,0irq/29-eth0-tx-0-21swapper/210:50:452
29815040,0irq/29-eth0-tx-0-21swapper/210:13:382
29815040,0irq/29-eth0-tx-0-21swapper/209:58:312
29815040,0irq/29-eth0-tx-0-21swapper/209:43:362
29815040,0irq/29-eth0-tx-0-21swapper/009:18:350
29805040,0irq/28-eth0-rx-0-21swapper/312:23:293
29805040,0irq/28-eth0-rx-0-21swapper/312:18:593
29805040,0irq/28-eth0-rx-0-21swapper/311:19:073
29805040,0irq/28-eth0-rx-0-21swapper/311:02:183
29805040,0irq/28-eth0-rx-0-21swapper/310:13:453
29805040,0irq/28-eth0-rx-0-21swapper/309:29:133
259940,0migration/26343-21kthreadcore08:58:402
259940,0migration/225901-21latency_hist09:13:232
259940,0migration/225868-21gltestperf11:08:372
259940,0migration/225649-21kthreadcore08:03:422
259940,0migration/219953-21kthreadcore09:28:422
259940,0migration/218491-21kthreadcore07:58:412
259940,0migration/213807-21ntp_kernel_err08:38:422
259940,0migration/21296-21munin-node07:48:362
249940,0watchdog/230072-21fschecks_time08:53:382
249940,0watchdog/225072-21munin-node12:43:392
249940,0watchdog/213483-21latency07:53:422
179940,0migration/19602-21kthreadcore12:13:411
179940,0migration/18501-21kthreadcore08:58:401
179940,0migration/13579-21kthreadcore12:48:391
179940,0migration/132427-21fschecks_time10:53:361
179940,0migration/128618-21kthreadcore10:48:421
179940,0migration/128418-21kthreadcore09:33:431
179940,0migration/126120-21fschecks_count07:43:361
179940,0migration/122882-21kthreadcore11:23:431
179940,0migration/121148-21munin-node11:43:401
179940,0migration/120297-21kthreadcore09:48:421
179940,0migration/120132-21kthreadcore12:38:421
179940,0migration/119927-21kthreadcore09:28:421
179940,0migration/119628-21kthreadcore11:03:421
179940,0migration/114422-21kthreadcore08:18:391
179940,0migration/111696-21fschecks_count07:33:381
169940,0watchdog/132564-21aten_r1power_po09:38:341
169940,0watchdog/127341-21irqcore09:13:421
169940,0watchdog/11938-21latency11:48:431
169940,0watchdog/11701-21ssh09:57:101
169940,0watchdog/10-21swapper/112:53:351
169940,0watchdog/10-21swapper/112:33:391
169940,0watchdog/10-21swapper/110:23:381
169940,0watchdog/10-21swapper/107:53:421
149940,0migration/03858-21sensors_temp10:33:470
149940,0migration/028017-21ntp_offset08:03:450
149940,0migration/024538-21kthreadcore11:43:420
149940,0migration/024040-21cpuspeed_turbos09:33:370
149940,0migration/023430-21sh12:39:170
149940,0migration/020285-21sh11:59:410
149940,0migration/015499-21kthreadcore10:23:390
37739932,0cyclictest19587-21awk07:38:392
37669932,0cyclictest3524-21snmpd07:31:581
37669932,0cyclictest23109-21awk08:03:391
37669932,0cyclictest2149-21awk11:13:391
37579933,0cyclictest28238-21kworker/0:108:38:240
37579933,0cyclictest27669-21kworker/0:112:08:250
37579933,0cyclictest27669-21kworker/0:111:18:310
37579933,0cyclictest27669-21kworker/0:110:43:330
37579933,0cyclictest27669-21kworker/0:110:38:370
37579933,0cyclictest18692-21kworker/0:010:08:250
37579933,0cyclictest18692-21kworker/0:009:58:310
37579933,0cyclictest18692-21kworker/0:009:43:300
329930,0watchdog/327342-21irqcore09:13:423
329930,0watchdog/316027-21munin-node08:43:383
329930,0watchdog/30-21swapper/308:38:383
29805030,0irq/28-eth0-rx-0-21swapper/308:50:263
29805030,0irq/28-eth0-rx-0-21swapper/307:58:353
29805030,0irq/28-eth0-rx-0-21swapper/307:38:253
29805030,0irq/28-eth0-rx-0-21swapper/307:28:343
179930,0migration/129071-21runrttasks08:52:041
169930,0watchdog/131897-21munin-node12:28:431
169930,0watchdog/11129-40yum-updatesd-he11:29:071
169930,0watchdog/10-21swapper/112:08:311
169930,0watchdog/10-21swapper/111:18:391
169930,0watchdog/10-21swapper/111:01:391
169930,0watchdog/10-21swapper/107:38:421
169920,0watchdog/10-21swapper/109:08:301
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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