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2026-07-23 - 11:10
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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 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2403129691,0sleep00-21swapper/019:24:580
2396625241,0sleep10-21swapper/119:24:151
2430523829,0sleep30-21swapper/319:28:133
2420823627,0sleep20-21swapper/219:27:042
244009970,0cyclictest0-21swapper/120:33:381
339960,0migration/38588-21sh00:49:293
339960,0migration/34784-21missed_timers22:03:403
339960,0migration/331731-21sh22:20:423
339960,0migration/329151-21missed_timers23:03:413
339960,0migration/328026-21sh21:40:393
339960,0migration/325336-21sh22:36:453
339960,0migration/320282-21sh21:38:153
339960,0migration/316984-21fschecks_count23:18:363
339960,0migration/314104-21sh21:53:313
339960,0migration/311011-21sh22:49:003
329960,0watchdog/332449-21sh23:26:123
29815060,0irq/29-eth0-tx-28572-21munin-node21:23:400
29805060,0irq/28-eth0-rx-1072-21ssh23:44:043
244079965,0cyclictest18391-21cat22:13:392
243929965,0cyclictest22031-21perl21:18:330
149960,0migration/06952-21aten_r1power_fr20:23:330
149960,0migration/023904-21sh00:39:360
4150,0ktimersoftd/00-21swapper/022:26:260
339950,0migration/39035-21kthreadcore20:23:393
339950,0migration/36654-21munin-node21:48:373
339950,0migration/35210-21kthreadcore19:58:383
339950,0migration/35210-21kthreadcore19:58:383
339950,0migration/332544-21fschecks_count20:18:343
339950,0migration/332221-21df_abs19:33:343
339950,0migration/328930-21fschecks_count20:38:323
339950,0migration/322980-21df_abs21:58:343
339950,0migration/321228-21ksmtuned20:33:243
339950,0migration/316279-21kthreadcore20:28:383
339950,0migration/315333-21kthreadcore00:13:393
339950,0migration/314105-21taskset22:57:403
339950,0migration/313650-21taskset21:09:583
339950,0migration/312673-21munin-node23:53:383
339950,0migration/311992-21kthreadcore23:33:413
339950,0migration/310721-21kthreadcore22:08:383
329950,0watchdog/332490-21ssh23:08:363
329950,0watchdog/325150-21ssh23:39:283
329950,0watchdog/319962-21munin-node23:58:483
29815050,0irq/29-eth0-tx-5944-21kthreadcore22:23:402
29815050,0irq/29-eth0-tx-3139-21munin-node19:58:430
29815050,0irq/29-eth0-tx-3139-21munin-node19:58:430
29815050,0irq/29-eth0-tx-22639-21munin-node21:58:342
29815050,0irq/29-eth0-tx-18016-21kernelversion23:18:402
29815050,0irq/29-eth0-tx-1294-21ssh22:41:242
29815050,0irq/29-eth0-tx-10414-21munin-node20:03:400
29815050,0irq/29-eth0-tx-0-21swapper/222:55:532
29815050,0irq/29-eth0-tx-0-21swapper/222:33:152
29815050,0irq/29-eth0-tx-0-21swapper/222:08:362
29815050,0irq/29-eth0-tx-0-21swapper/021:03:290
29805050,0irq/28-eth0-rx-7920-40yum-updatesd-he23:29:023
29805050,0irq/28-eth0-rx-6632-21kthreadcore22:43:393
29805050,0irq/28-eth0-rx-6576-21cat19:38:213
29805050,0irq/28-eth0-rx-6145-21sed00:08:383
29805050,0irq/28-eth0-rx-30814-21kthreadcore21:43:383
29805050,0irq/28-eth0-rx-19415-21grep20:53:393
29805050,0irq/28-eth0-rx-16867-21kthreadcore21:13:383
29805050,0irq/28-eth0-rx-0-21swapper/323:48:403
29805050,0irq/28-eth0-rx-0-21swapper/322:23:453
29805050,0irq/28-eth0-rx-0-21swapper/322:13:393
29805050,0irq/28-eth0-rx-0-21swapper/319:28:393
29805050,0irq/28-eth0-rx-0-21swapper/300:43:333
29805050,0irq/28-eth0-rx-0-21swapper/300:33:393
29805050,0irq/28-eth0-rx-0-21swapper/300:24:173
29805050,0irq/28-eth0-rx-0-21swapper/300:03:333
27150,0ktimersoftd/20-21swapper/223:04:352
259950,0migration/225524-21gltestperf19:28:342
259950,0migration/224250-21sh23:38:422
259950,0migration/218146-21kthreadcore21:53:402
259950,0migration/214701-21kthreadcore21:33:392
244079955,0cyclictest0-21swapper/223:33:452
244079955,0cyclictest0-21swapper/222:06:532
244079955,0cyclictest0-21swapper/200:56:502
244079950,0cyclictest0-21swapper/222:20:072
244009954,0cyclictest8897-21ssh23:31:571
243929955,0cyclictest0-21swapper/023:25:470
243929950,0cyclictest0-21swapper/023:44:520
243929950,0cyclictest0-21swapper/021:49:370
243929950,0cyclictest0-21swapper/021:40:570
249950,0watchdog/26731-21tail19:38:312
249950,0watchdog/225581-21tr21:38:402
249950,0watchdog/217908-21cut00:13:402
249950,0watchdog/215198-21idleruntime21:13:362
19150,0ktimersoftd/10-21swapper/122:26:261
179950,0migration/132395-21sh00:44:341
179950,0migration/129520-21gltestperf21:23:411
179950,0migration/120308-21kthreadcore00:38:391
179950,0migration/115547-21switchtime22:28:471
179950,0migration/110630-21aten_r1power_po20:48:331
169950,0watchdog/18952-21kthreadcore19:58:391
169950,0watchdog/18952-21kthreadcore19:58:391
169950,0watchdog/132494-21fschecks_time23:08:361
149950,0migration/09568-21kthreadcore21:08:420
149950,0migration/06033-21kthreadcore00:48:380
149950,0migration/0449-21kthreadcore22:03:380
149950,0migration/032648-21sh23:08:370
149950,0migration/028978-21munin-node00:43:370
149950,0migration/027860-21taskset00:02:260
149950,0migration/027577-21kthreadcore21:58:390
149950,0migration/026941-21fschecks_time22:38:350
149950,0migration/026748-21kthreadcore20:58:380
149950,0migration/021605-21taskset22:59:380
149950,0migration/02039-21hwlatdetect23:28:360
149950,0migration/018255-21fschecks_time20:08:330
149950,0migration/018182-21fschecks_count20:53:350
149950,0migration/013908-21sh22:57:050
149950,0migration/012842-21kthreadcore23:13:390
149950,0migration/011709-21sh00:09:490
149950,0migration/011477-21kthreadcore22:08:390
149950,0migration/010914-21munin-node20:48:340
149950,0migration/010216-21sh23:50:310
339940,0migration/331516-21taskset20:59:203
339940,0migration/322700-21hwlatdetect00:18:353
339940,0migration/322638-21irqcore21:18:363
339940,0migration/314595-21diskmemload22:58:283
329940,0watchdog/323631-21munin-node00:38:483
329940,0watchdog/312004-21cut20:03:393
329940,0watchdog/30-21swapper/321:03:363
329940,0watchdog/30-21swapper/320:43:403
329940,0watchdog/30-21swapper/319:43:593
29815040,0irq/29-eth0-tx-6642-40yum-updatesd-he00:29:142
29815040,0irq/29-eth0-tx-24607-21munin-node19:28:370
29815040,0irq/29-eth0-tx-16892-21ssh00:38:222
29815040,0irq/29-eth0-tx-14912-21grep23:53:392
29815040,0irq/29-eth0-tx-0-21swapper/223:24:382
29815040,0irq/29-eth0-tx-0-21swapper/222:58:422
29815040,0irq/29-eth0-tx-0-21swapper/222:49:252
29815040,0irq/29-eth0-tx-0-21swapper/222:33:322
29815040,0irq/29-eth0-tx-0-21swapper/200:33:222
29815040,0irq/29-eth0-tx-0-21swapper/200:23:222
29815040,0irq/29-eth0-tx-0-21swapper/200:18:332
29815040,0irq/29-eth0-tx-0-21swapper/200:03:252
29815040,0irq/29-eth0-tx-0-21swapper/020:33:340
29815040,0irq/29-eth0-tx-0-21swapper/019:48:370
29815040,0irq/29-eth0-tx-0-21swapper/019:43:340
29815040,0irq/29-eth0-tx-0-21swapper/019:33:320
29805040,0irq/28-eth0-rx-0-21swapper/323:13:413
29805040,0irq/28-eth0-rx-0-21swapper/322:38:393
29805040,0irq/28-eth0-rx-0-21swapper/322:28:263
29805040,0irq/28-eth0-rx-0-21swapper/319:53:333
29805040,0irq/28-eth0-rx-0-21swapper/300:53:233
29805040,0irq/28-eth0-rx-0-21swapper/300:28:373
259940,0migration/2899-21kthreadcore19:53:402
259940,0migration/28335-21kthreadcore23:48:412
259940,0migration/25508-21kthreadcore00:48:382
259940,0migration/226795-21kthreadcore20:58:382
259940,0migration/222017-21fschecks_time20:33:342
259940,0migration/218288-21kthreadcore20:28:392
244079943,0cyclictest3524-21snmpd21:28:382
244079943,0cyclictest3524-21snmpd21:25:082
244079943,0cyclictest3524-21snmpd21:19:522
244079943,0cyclictest3524-21snmpd21:10:372
244079943,0cyclictest3524-21snmpd20:48:372
244079943,0cyclictest3524-21snmpd20:44:522
244079943,0cyclictest3524-21snmpd20:39:222
244079943,0cyclictest3524-21snmpd20:15:522
244079943,0cyclictest3524-21snmpd20:09:372
244079943,0cyclictest3524-21snmpd19:58:212
244079943,0cyclictest3524-21snmpd19:58:212
244079943,0cyclictest3524-21snmpd19:48:212
244079943,0cyclictest3514-21awk22:43:362
244079943,0cyclictest3250-21irqbalance21:48:572
244079943,0cyclictest3250-21irqbalance21:43:372
244079943,0cyclictest3250-21irqbalance00:43:282
244079943,0cyclictest21085-21awk23:58:392
244079940,0cyclictest4647-21munin-node00:08:342
244079940,0cyclictest1040-21munin-node23:28:472
244009944,0cyclictest3171-21diskmemload00:33:261
244009944,0cyclictest0-21swapper/123:33:501
244009944,0cyclictest0-21swapper/120:53:211
244009943,0cyclictest3524-21snmpd22:58:531
244009943,0cyclictest3524-21snmpd00:51:101
244009943,0cyclictest3250-21irqbalance23:54:181
244009943,0cyclictest3250-21irqbalance23:43:281
244009943,0cyclictest3250-21irqbalance23:23:271
244009943,0cyclictest3250-21irqbalance22:44:071
244009943,0cyclictest3250-21irqbalance22:35:471
244009943,0cyclictest3250-21irqbalance21:28:271
244009943,0cyclictest3250-21irqbalance21:13:371
244009943,0cyclictest3250-21irqbalance21:08:371
244009943,0cyclictest3250-21irqbalance20:19:171
244009943,0cyclictest3250-21irqbalance20:08:571
244009943,0cyclictest3250-21irqbalance20:03:371
244009943,0cyclictest3250-21irqbalance19:33:371
244009943,0cyclictest3250-21irqbalance19:28:471
244009943,0cyclictest3250-21irqbalance00:53:281
244009943,0cyclictest29624-21awk20:38:351
244009943,0cyclictest29550-21awk00:03:371
244009943,0cyclictest27235-21awk22:38:361
244009943,0cyclictest25947-21awk20:13:371
244009943,0cyclictest23759-21awk21:58:371
244009943,0cyclictest14275-21awk00:13:381
244009940,0cyclictest0-21swapper/123:04:401
244009940,0cyclictest0-21swapper/122:50:391
244009940,0cyclictest0-21swapper/100:29:391
243929944,0cyclictest0-21swapper/022:32:200
243929944,0cyclictest0-21swapper/022:17:310
243929943,0cyclictest687-21awk20:18:360
243929943,0cyclictest4540-21awk21:28:360
243929943,0cyclictest24263-21awk23:03:380
243929943,0cyclictest2062-21ps19:53:430
243929943,0cyclictest17510-21awk23:18:380
243929943,0cyclictest14391-21awk00:13:380
243929943,0cyclictest12899-21kworker/0:100:56:150
249940,0watchdog/23094-21grep21:03:362
249940,0watchdog/230015-21kthreadcore23:43:402
249940,0watchdog/221069-21kthreadcore20:53:402
249940,0watchdog/212005-21tr20:03:392
249940,0watchdog/20-21swapper/223:13:242
249940,0watchdog/20-21swapper/223:08:362
249940,0watchdog/20-21swapper/219:43:312
249940,0watchdog/20-21swapper/219:34:232
179940,0migration/19403-21irqrtprio23:13:381
179940,0migration/19327-21kthreadcore20:23:391
179940,0migration/18793-21kthreadcore21:48:401
179940,0migration/15883-21kthreadcore20:43:391
179940,0migration/130818-21fschecks_count00:23:371
179940,0migration/129842-21kthreadcore20:58:391
179940,0migration/129146-21latency_hist21:43:201
179940,0migration/127983-21kthreadcore22:18:381
179940,0migration/122751-21munin-node21:18:371
179940,0migration/121227-21kthreadcore23:18:411
179940,0migration/120432-21fschecks_count23:58:361
179940,0migration/119336-21kthreadcore22:13:401
179940,0migration/118975-21fschecks_time23:38:361
179940,0migration/116037-21kthreadcore20:28:381
179940,0migration/114124-21cpuspeed_turbos19:43:321
179940,0migration/113826-21kthreadcore21:33:391
179940,0migration/11131-21kthreadcore22:03:381
169940,0watchdog/16727-21aten2.4-expect19:38:311
169940,0watchdog/1337-21perl21:03:321
169940,0watchdog/131873-21tr19:53:391
169940,0watchdog/126964-21sensors_temp21:38:441
169940,0watchdog/117362-21grep21:53:401
169940,0watchdog/114193-21ssh22:09:081
169940,0watchdog/10-21swapper/123:48:401
149940,0migration/07265-21fschecks_count19:38:330
149940,0migration/07060-21runrttasks00:30:130
149940,0migration/030330-21aten_r1power_en00:23:350
149940,0migration/029295-21kthreadcore20:13:390
149940,0migration/010885-21interrupts23:33:390
339930,0migration/321075-21runrttasks19:48:243
329930,0watchdog/30-21swapper/320:48:403
329930,0watchdog/30-21swapper/320:13:393
29805030,0irq/28-eth0-rx-10217-40yum-updatesd-he21:29:023
29805030,0irq/28-eth0-rx-0-21swapper/321:23:483
29805030,0irq/28-eth0-rx-0-21swapper/320:09:403
244079932,0cyclictest7955-21awk20:23:372
244079932,0cyclictest31974-21munin-node20:18:332
244009932,0cyclictest5648-21hwlatdetect00:08:361
244009930,0cyclictest22396-21perl00:18:341
244009930,0cyclictest21816-21perl19:48:331
243929933,0cyclictest12899-21kworker/0:123:53:220
243929933,0cyclictest12899-21kworker/0:122:48:300
243929933,0cyclictest12899-21kworker/0:122:37:380
243929933,0cyclictest12899-21kworker/0:121:53:320
243929933,0cyclictest12899-21kworker/0:121:33:280
243929933,0cyclictest12899-21kworker/0:120:43:320
243929933,0cyclictest12899-21kworker/0:100:33:510
243929933,0cyclictest12899-21kworker/0:100:03:540
243929932,0cyclictest3524-21snmpd23:38:240
243929932,0cyclictest3399-21awk22:43:360
243929932,0cyclictest25557-21awk22:18:370
243929932,0cyclictest14081-21cut20:28:320
243929930,0cyclictest29082-21cat21:43:200
243929930,0cyclictest28471-21munin-node20:38:310
243929930,0cyclictest22137-21diskstats00:18:330
243929930,0cyclictest18813-21kthreadcore21:13:390
179930,0migration/113814-21diskmemload22:56:481
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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