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2026-04-27 - 18:44
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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 Mon Apr 27, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
632826965,0sleep00-21swapper/007:20:290
632826965,0sleep00-21swapper/007:20:290
618923727,0sleep30-21swapper/307:18:523
618923727,0sleep30-21swapper/307:18:523
637823526,0sleep10-21swapper/107:21:031
637823526,0sleep10-21swapper/107:21:031
3179122925,0sleep20-21swapper/207:16:232
3179122925,0sleep20-21swapper/207:16:232
64709984,0cyclictest30845-21fschecks_count12:16:292
64709983,0cyclictest3226-21sadc09:11:152
64709973,0cyclictest833-21awk11:21:312
64709973,0cyclictest5594-21awk12:01:332
64709973,0cyclictest4653-21awk09:11:322
64709973,0cyclictest3571-21lldpd10:20:052
64709973,0cyclictest3524-21snmpd09:52:512
64709973,0cyclictest3524-21snmpd08:44:512
64709973,0cyclictest3524-21snmpd07:50:512
64709973,0cyclictest3524-21snmpd07:43:502
64709973,0cyclictest3524-21snmpd07:25:502
64709973,0cyclictest22849-21awk12:11:332
64709972,0cyclictest21436-21sadc12:11:162
64709971,0cyclictest4093-21sadc12:01:162
64709970,0cyclictest0-21swapper/210:41:522
339970,0migration/327074-21sh11:54:193
64709964,0cyclictest21302-21munin-node10:56:322
64709963,0cyclictest616-21awk08:01:322
64709963,0cyclictest453-21awk10:06:312
64709962,0cyclictest3524-21snmpd10:04:512
64709962,0cyclictest3524-21snmpd09:58:512
64709962,0cyclictest3524-21snmpd09:45:512
64709962,0cyclictest3524-21snmpd07:38:502
64709962,0cyclictest23405-21grep09:21:352
64709962,0cyclictest22251-21awk08:16:302
64709962,0cyclictest12273-21tr09:36:282
64709962,0cyclictest0-21swapper/210:51:272
64709961,0cyclictest3524-21snmpd12:34:422
64709960,0cyclictest7882-21ntpq10:26:362
64709960,0cyclictest4848-21cut12:36:332
64709960,0cyclictest24286-21kthreadcore11:51:342
64709960,0cyclictest0-21swapper/211:17:542
64709960,0cyclictest0-21swapper/210:46:212
64709960,0cyclictest0-21swapper/209:34:332
64699960,0cyclictest657-21munin-node11:21:291
64689965,0cyclictest11814-21irqrtprio10:31:320
64689960,0cyclictest0-21swapper/010:21:300
339960,0migration/325581-21sh09:24:223
339960,0migration/313699-21sh11:08:433
29805060,0irq/28-eth0-rx-2932-21perl11:41:313
149960,0migration/06634-21sh10:08:020
149960,0migration/03945-21fschecks_count09:11:290
149960,0migration/032743-21kthreadcore11:56:350
149960,0migration/023667-21munin-node12:46:350
149960,0migration/020181-21sh10:53:580
149960,0migration/019130-21sh11:51:160
64709952,0cyclictest3571-21lldpd08:51:042
64709951,0cyclictest3524-21snmpd07:33:502
64709951,0cyclictest315342chrt07:59:492
64709951,0cyclictest30592-21awk09:46:322
64709951,0cyclictest26957-21kernelversion10:21:322
64709951,0cyclictest26779-21sh09:26:292
64709951,0cyclictest20016-21cut08:36:352
64709951,0cyclictest17633-21aten2.4-expect12:46:262
64709951,0cyclictest16388-21sh12:26:302
64709951,0cyclictest15780-21kthreadcore10:31:342
64709951,0cyclictest14967-21smartctl08:11:282
64709951,0cyclictest0-21swapper/208:26:302
64709950,0cyclictest8096-21munin-node10:11:292
64709950,0cyclictest29894-21ssh11:01:202
64709950,0cyclictest24278-21kthreadcore10:36:362
64709950,0cyclictest15628-21irqrtprio08:56:332
64709950,0cyclictest1548-21kthreadcore08:21:342
64709950,0cyclictest13323-21kthreadcore09:16:342
64709950,0cyclictest0-21swapper/212:41:312
64709950,0cyclictest0-21swapper/212:21:322
64709950,0cyclictest0-21swapper/211:46:172
64709950,0cyclictest0-21swapper/211:42:272
64709950,0cyclictest0-21swapper/211:36:352
64709950,0cyclictest0-21swapper/211:33:482
64709950,0cyclictest0-21swapper/211:26:252
64709950,0cyclictest0-21swapper/211:13:152
64709950,0cyclictest0-21swapper/211:06:222
64709950,0cyclictest0-21swapper/208:51:292
64709950,0cyclictest0-21swapper/208:31:332
64709950,0cyclictest0-21swapper/208:06:422
64699955,0cyclictest0-21swapper/108:01:441
64699950,0cyclictest0-21swapper/110:25:031
64699950,0cyclictest0-21swapper/109:44:511
64699950,0cyclictest0-21swapper/109:35:231
339950,0migration/38230-21irqcore08:51:333
339950,0migration/37455-21fschecks_time07:21:293
339950,0migration/36645-21kthreadcore08:26:343
339950,0migration/35202-21kthreadcore09:31:333
339950,0migration/33697-21timerandwakeup09:46:423
339950,0migration/332042-21aten_r1power_vo08:01:273
339950,0migration/330521-21latency07:56:333
339950,0migration/330376-21kthreadcore10:41:333
339950,0migration/329320-21kthreadcore12:31:353
339950,0migration/328665-21munin-node07:36:303
339950,0migration/328199-21kthreadcore10:01:353
339950,0migration/32673-21kthreadcore12:36:323
339950,0migration/326228-21kthreadcore09:01:363
339950,0migration/326069-21fschecks_time10:21:293
339950,0migration/324158-21kthreadcore10:56:333
339950,0migration/322789-21munin-node10:16:373
339950,0migration/322383-21kthreadcore12:46:333
339950,0migration/321713-21munin-node09:41:293
339950,0migration/319697-21fschecks_count10:36:313
339950,0migration/319359-21kthreadcore11:31:343
339950,0migration/317769-21munin-node07:51:273
339950,0migration/317530-21kthreadcore12:26:333
339950,0migration/317216-21kthreadcore07:26:333
339950,0migration/316605-21kthreadcore08:11:323
339950,0migration/315183-21cpuspeed_turbos11:11:293
339950,0migration/313413-21kthreadcore07:46:333
339950,0migration/313071-21switchtime08:06:423
339950,0migration/312901-21kthreadcore11:46:353
339950,0migration/310857-21kthreadcore12:41:333
329950,0watchdog/331600-21kthreadcore11:56:353
329950,0watchdog/329295-21fschecks_time09:06:313
329950,0watchdog/328761-21cut09:26:353
329950,0watchdog/3208422sleep310:55:473
329950,0watchdog/318029-21ssh10:34:153
329950,0watchdog/312253-21python09:51:393
29815050,0irq/29-eth0-tx-22188-21ssh09:21:350
29815050,0irq/29-eth0-tx-0-21swapper/009:06:380
29815050,0irq/29-eth0-tx-0-21swapper/007:36:340
29805050,0irq/28-eth0-rx-25978-21cpu11:36:293
29805050,0irq/28-eth0-rx-2586-21kthreadcore08:46:323
29805050,0irq/28-eth0-rx-2466-21fschecks_time10:26:293
29805050,0irq/28-eth0-rx-24211-21tune2fs11:16:293
29805050,0irq/28-eth0-rx-2233-21munin-node08:21:393
29805050,0irq/28-eth0-rx-1086-21kthreadcore11:01:343
29805050,0irq/28-eth0-rx-0-21swapper/312:19:263
29805050,0irq/28-eth0-rx-0-21swapper/312:10:563
29805050,0irq/28-eth0-rx-0-21swapper/311:26:343
29805050,0irq/28-eth0-rx-0-21swapper/310:48:043
29805050,0irq/28-eth0-rx-0-21swapper/310:15:143
29805050,0irq/28-eth0-rx-0-21swapper/307:31:333
19150,0ktimersoftd/10-21swapper/112:10:221
179950,0migration/18608-21sh12:41:011
179950,0migration/16885-21sh12:21:281
179950,0migration/131105-21fschecks_time12:16:291
179950,0migration/129891-21munin-node11:16:391
179950,0migration/120287-21fschecks_time11:51:291
179950,0migration/115787-21kthreadcore09:16:351
179950,0migration/114039-21kthreadcore09:36:331
179950,0migration/111208-21fschecks_time10:31:291
149950,0migration/08905-21kthreadcore10:46:340
149950,0migration/05859-21taskset09:51:260
149950,0migration/05428-21kthreadcore09:31:330
149950,0migration/04114-21kthreadcore08:46:330
149950,0migration/0393-21kthreadcore08:21:340
149950,0migration/031442-21sh11:19:590
149950,0migration/02956-21kthreadcore08:01:330
149950,0migration/029392-21kthreadcore07:56:330
149950,0migration/026547-21latency_hist09:26:150
149950,0migration/024547-21taskset10:19:420
149950,0migration/023824-21kthreadcore09:01:350
149950,0migration/023556-21mdstat08:36:360
149950,0migration/021134-21kthreadcore11:51:330
149950,0migration/021055-21latency_hist07:31:160
149950,0migration/019411-21kthreadcore11:31:340
149950,0migration/019178-21aten_r1power_po10:36:290
149950,0migration/01608-21kthreadcore09:46:350
149950,0migration/014234-21cpuspeed_turbos08:11:270
149950,0migration/013768-21latency_hist07:26:160
149950,0migration/013330-21cpuspeed_turbos12:06:290
149950,0migration/012703-21kthreadcore08:51:350
149950,0migration/012396-21kthreadcore11:26:340
149950,0migration/011518-21kthreadcore10:11:340
149950,0migration/010240-21taskset08:30:400
64709943,0cyclictest22519-21awk09:01:342
64709940,0cyclictest17559-21aten_r1power_cu07:51:262
64709940,0cyclictest0-21swapper/207:26:332
64699944,0cyclictest0-21swapper/112:34:011
64699944,0cyclictest0-21swapper/112:27:141
64699944,0cyclictest0-21swapper/112:14:281
64699944,0cyclictest0-21swapper/110:06:261
64699943,0cyclictest8065-21awk08:51:321
64699943,0cyclictest7799-21awk07:21:311
64699943,0cyclictest720-21awk08:46:301
64699943,0cyclictest5123-21awk10:46:321
64699943,0cyclictest4400-21awk08:26:321
64699943,0cyclictest27724-21awk09:26:321
64699943,0cyclictest25787-21awk07:56:301
64699943,0cyclictest22236-21awk08:16:301
64699943,0cyclictest15987-21awk11:11:321
64699943,0cyclictest15046-21awk07:26:321
64699943,0cyclictest11583-21awk08:31:311
64689944,0cyclictest0-21swapper/010:56:400
64689943,0cyclictest7857-21awk12:21:320
64689943,0cyclictest3524-21snmpd12:03:070
64689943,0cyclictest3524-21snmpd11:08:520
64689943,0cyclictest24377-21awk10:01:320
64689943,0cyclictest15264-21awk08:56:320
64689943,0cyclictest11430-21awk07:46:310
64689940,0cyclictest0-21swapper/011:06:070
64689940,0cyclictest0-21swapper/008:06:520
4140,0ktimersoftd/00-21swapper/011:38:450
339940,0migration/320053-21kthreadcore08:36:353
339940,0migration/314494-21diskmemload09:56:183
329940,0watchdog/30-21swapper/312:01:393
329940,0watchdog/30-21swapper/311:22:313
29815040,0irq/29-eth0-tx-13896-21telnet07:26:270
29815040,0irq/29-eth0-tx-0-21swapper/008:31:320
29805040,0irq/28-eth0-rx-22773-21ps08:16:323
29805040,0irq/28-eth0-rx-0-21swapper/312:21:183
29805040,0irq/28-eth0-rx-0-21swapper/312:11:303
29805040,0irq/28-eth0-rx-0-21swapper/310:06:333
29805040,0irq/28-eth0-rx-0-21swapper/309:36:523
29805040,0irq/28-eth0-rx-0-21swapper/308:56:313
179940,0migration/19393-21runrttasks10:29:161
179940,0migration/15358-21runrttasks11:04:351
179940,0migration/130067-21kthreadcore08:41:341
179940,0migration/129306-21fschecks_time09:06:311
179940,0migration/129057-21kthreadcore11:36:341
179940,0migration/128289-21runrttasks10:57:281
179940,0migration/124721-21kthreadcore09:01:361
179940,0migration/124406-21kthreadcore10:36:361
179940,0migration/119058-21switchtime10:51:431
179940,0migration/118951-21irqcore12:46:321
179940,0migration/117612-21df_inode11:31:291
179940,0migration/117021-21kthreadcore08:11:321
179940,0migration/116788-21aten_r1power_cu10:16:291
179940,0migration/116759-21kthreadcore08:56:341
179940,0migration/116713-21timerwakeupswit07:46:411
179940,0migration/115783-21kthreadcore11:46:361
179940,0migration/112394-21timerandwakeup09:51:421
179940,0migration/111443-21kthreadcore11:26:331
179940,0migration/111182-21kthreadcore12:41:331
179940,0migration/110083-21kthreadcore10:11:331
169940,0watchdog/17607-21kthreadcore12:01:351
169940,0watchdog/129043-21cat10:01:351
169940,0watchdog/12362-21cut09:46:351
169940,0watchdog/119323-21cut08:36:351
169940,0watchdog/112175-21kthreadcore08:06:341
169940,0watchdog/10-21swapper/111:56:351
169940,0watchdog/10-21swapper/109:56:351
169940,0watchdog/10-21swapper/109:21:351
169940,0watchdog/10-21swapper/107:41:301
169940,0watchdog/10-21swapper/107:36:301
149940,0migration/08987-21sh10:28:070
149940,0migration/032194-21kthreadcore10:41:330
149940,0migration/032083-21kthreadcore12:16:330
149940,0migration/032080-21sh12:35:250
149940,0migration/027280-21kthreadcore08:41:330
149940,0migration/025730-21kthreadcore12:11:350
149940,0migration/010684-21kthreadcore12:41:330
10777240,0sleep30-21swapper/309:16:293
64699932,0cyclictest27251-21sensors07:31:371
64699932,0cyclictest18576-21awk07:51:301
64699930,0cyclictest5934-21kthreadcore09:11:331
64699930,0cyclictest32073-21kthreadcore08:21:341
64699930,0cyclictest29318-21kthreadcore10:41:321
64689933,0cyclictest18591-21awk07:51:300
64689933,0cyclictest0-21swapper/011:22:310
64689932,0cyclictest3178-21awk11:41:330
64689932,0cyclictest22602-21irqrtprio08:16:320
64689932,0cyclictest17559-21grep09:56:340
64689932,0cyclictest16019-21awk11:11:320
64689932,0cyclictest13062-21awk09:36:310
64689931,0cyclictest18443-21kthreadcore12:26:340
64689930,0cyclictest3064-21munin-node07:41:360
64689930,0cyclictest10733-21munin-node09:16:300
4130,0ktimersoftd/028371-21sh09:43:510
4130,0ktimersoftd/00-21swapper/012:36:180
329930,0watchdog/30-21swapper/309:11:313
329930,0watchdog/30-21swapper/308:35:393
29805030,0irq/28-eth0-rx-0-21swapper/308:41:273
29805030,0irq/28-eth0-rx-0-21swapper/307:41:263
169930,0watchdog/16274-21munin-node11:06:311
169930,0watchdog/10-21swapper/111:41:351
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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