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2026-04-16 - 21:19
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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 Thu Apr 16, 2026 12:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2542524738,0sleep10-21swapper/107:18:011
2534324636,0sleep20-21swapper/207:17:052
2540124027,0sleep30-21swapper/307:17:423
2537122918,0sleep00-21swapper/007:17:230
25700991616,0cyclictest3524-21snmpd07:32:441
257089976,0cyclictest0-21swapper/209:55:482
339960,0migration/35360-21sh10:34:573
339960,0migration/327422-21sh12:39:483
29815060,0irq/29-eth0-tx-14443-21munin-node10:40:382
29805060,0irq/28-eth0-rx-32498-21perl10:50:353
29805060,0irq/28-eth0-rx-31415-21cut10:10:383
29805060,0irq/28-eth0-rx-11868-21chrt10:19:453
257089960,0cyclictest0-21swapper/211:32:172
257089960,0cyclictest0-21swapper/210:11:432
4150,0ktimersoftd/00-21swapper/009:51:060
339950,0migration/38391-21kthreadcore08:35:393
339950,0migration/38365-21kthreadcore10:35:383
339950,0migration/36945-21munin-node08:10:403
339950,0migration/36551-21kthreadcore12:25:393
339950,0migration/330767-21munin-node08:30:353
339950,0migration/32974-21latency07:45:413
339950,0migration/328829-21taskset08:25:443
339950,0migration/327204-21irqcore07:20:363
339950,0migration/325820-21kthreadcore07:40:383
339950,0migration/325589-21munin-node09:50:343
339950,0migration/322947-21kthreadcore11:40:393
339950,0migration/321229-21taskset10:41:023
339950,0migration/317857-21fschecks_time12:15:363
339950,0migration/31584-21ntp_states12:40:423
339950,0migration/315114-21dump-pmu-power08:20:163
339950,0migration/313333-21fschecks_time11:35:363
339950,0migration/313184-21sh09:24:443
339950,0migration/311947-21aten_r1power_en08:40:333
339950,0migration/311803-21aten_r1power_vo07:55:323
339950,0migration/310078-21kthreadcore09:00:393
329950,0watchdog/38000-21mailstats11:10:453
329950,0watchdog/36157-21ssh11:50:333
329950,0watchdog/3469-21ssh11:08:173
329950,0watchdog/324453-21hddtemp_smartct12:00:373
329950,0watchdog/316995-21python12:30:453
329950,0watchdog/314799-21python12:10:453
29815050,0irq/29-eth0-tx-4375-21ssh12:45:352
29815050,0irq/29-eth0-tx-29446-21munin-node10:30:352
29815050,0irq/29-eth0-tx-14811-21munin-node11:55:382
29815050,0irq/29-eth0-tx-0-21swapper/212:42:332
29815050,0irq/29-eth0-tx-0-21swapper/212:39:492
29815050,0irq/29-eth0-tx-0-21swapper/212:03:052
29815050,0irq/29-eth0-tx-0-21swapper/210:24:462
29815050,0irq/29-eth0-tx-0-21swapper/209:34:062
29815050,0irq/29-eth0-tx-0-21swapper/009:05:360
29815050,0irq/29-eth0-tx-0-21swapper/008:35:370
29805050,0irq/28-eth0-rx-7652-21pmu-power09:55:423
29805050,0irq/28-eth0-rx-3340-21kthreadcore07:25:393
29805050,0irq/28-eth0-rx-25389-21grep10:45:403
29805050,0irq/28-eth0-rx-20246-21kthreadcore09:45:403
29805050,0irq/28-eth0-rx-17463-40yum-updatesd-he11:17:103
29805050,0irq/28-eth0-rx-17307-21fschecks_count11:00:363
29805050,0irq/28-eth0-rx-16320-21if_eth1.207:35:353
29805050,0irq/28-eth0-rx-14126-21processes09:40:423
29805050,0irq/28-eth0-rx-11803-21taskset12:48:113
29805050,0irq/28-eth0-rx-0-21swapper/312:21:083
29805050,0irq/28-eth0-rx-0-21swapper/312:09:143
29805050,0irq/28-eth0-rx-0-21swapper/311:30:413
29805050,0irq/28-eth0-rx-0-21swapper/311:25:343
29805050,0irq/28-eth0-rx-0-21swapper/311:23:593
29805050,0irq/28-eth0-rx-0-21swapper/310:25:353
29805050,0irq/28-eth0-rx-0-21swapper/310:05:393
29805050,0irq/28-eth0-rx-0-21swapper/310:01:083
29805050,0irq/28-eth0-rx-0-21swapper/309:35:383
29805050,0irq/28-eth0-rx-0-21swapper/309:28:153
257089955,0cyclictest0-21swapper/212:17:412
257089955,0cyclictest0-21swapper/211:25:392
257089950,0cyclictest0-21swapper/212:07:552
257089950,0cyclictest0-21swapper/211:06:542
257089950,0cyclictest0-21swapper/210:26:042
256969955,0cyclictest0-21swapper/011:50:170
256969955,0cyclictest0-21swapper/009:39:450
256969950,0cyclictest0-21swapper/011:26:290
256969950,0cyclictest0-21swapper/011:04:150
256969950,0cyclictest0-21swapper/010:42:490
256969950,0cyclictest0-21swapper/010:25:280
256969950,0cyclictest0-21swapper/009:21:280
259950,0migration/229230-21kthreadcore12:20:382
249950,0watchdog/24661-21diskmemload10:51:492
249950,0watchdog/223233-21vmstat09:45:482
249950,0watchdog/216241-21kthreadcore11:35:412
179950,0migration/17437-21unixbench_multi08:10:451
179950,0migration/16829-21idleruntime10:35:361
179950,0migration/16514-21df_abs11:50:351
179950,0migration/132276-21munin-node12:20:461
179950,0migration/131636-21cpuspeed_turbos09:35:331
179950,0migration/121874-21timerandwakeup09:05:451
179950,0migration/120641-21kthreadcore11:55:411
179950,0migration/114179-21munin-node09:40:431
179950,0migration/112183-21sh09:22:201
169950,0watchdog/129738-21grep08:05:401
169950,0watchdog/124028-21expr10:45:371
169950,0watchdog/112411-21grep08:15:401
149950,0migration/08412-21sh12:25:450
149950,0migration/03794-21diskmemload10:30:460
149950,0migration/031684-21missed_timers12:20:400
339940,0migration/39627-21irqrtprio10:55:393
339940,0migration/36807-21kthreadcore08:55:393
339940,0migration/3459-21kthreadcore09:15:393
339940,0migration/322544-21taskset09:30:293
339940,0migration/319178-21kthreadcore09:05:383
329940,0watchdog/321178-21python11:55:453
329940,0watchdog/30-21swapper/308:05:363
29815040,0irq/29-eth0-tx-8084-21munin-node10:55:502
29815040,0irq/29-eth0-tx-29810-21munin-node08:30:460
29815040,0irq/29-eth0-tx-13711-21munin-node09:25:342
29815040,0irq/29-eth0-tx-10641-21ssh12:30:242
29815040,0irq/29-eth0-tx-0-21swapper/212:10:252
29815040,0irq/29-eth0-tx-0-21swapper/211:50:362
29815040,0irq/29-eth0-tx-0-21swapper/210:06:312
29815040,0irq/29-eth0-tx-0-21swapper/210:00:272
29815040,0irq/29-eth0-tx-0-21swapper/209:50:362
29815040,0irq/29-eth0-tx-0-21swapper/209:40:312
29815040,0irq/29-eth0-tx-0-21swapper/009:10:300
29815040,0irq/29-eth0-tx-0-21swapper/008:20:320
29815040,0irq/29-eth0-tx-0-21swapper/007:50:330
29805040,0irq/28-eth0-rx-0-21swapper/311:47:043
29805040,0irq/28-eth0-rx-0-21swapper/310:20:223
29805040,0irq/28-eth0-rx-0-21swapper/308:45:343
29805040,0irq/28-eth0-rx-0-21swapper/308:20:393
257089944,0cyclictest0-21swapper/211:40:292
257089943,0cyclictest9471-21awk09:00:372
257089943,0cyclictest3571-21lldpd08:11:092
257089943,0cyclictest3571-21lldpd08:05:392
257089943,0cyclictest3250-21irqbalance12:25:282
257089943,0cyclictest3250-21irqbalance10:35:282
257089943,0cyclictest3250-21irqbalance09:15:282
257089943,0cyclictest3250-21irqbalance09:05:382
257089943,0cyclictest3250-21irqbalance08:55:282
257089943,0cyclictest3250-21irqbalance08:50:272
257089943,0cyclictest3250-21irqbalance08:46:072
257089943,0cyclictest3250-21irqbalance08:40:272
257089943,0cyclictest3250-21irqbalance08:35:472
257089943,0cyclictest3250-21irqbalance08:30:272
257089943,0cyclictest3250-21irqbalance08:27:072
257089943,0cyclictest3250-21irqbalance08:20:372
257089943,0cyclictest3250-21irqbalance07:40:272
257089943,0cyclictest3250-21irqbalance07:37:272
257089943,0cyclictest3250-21irqbalance07:30:472
257089943,0cyclictest3250-21irqbalance07:26:572
257089943,0cyclictest30937-21awk11:45:392
257089943,0cyclictest27009-21awk07:20:352
257089943,0cyclictest23940-21awk09:10:352
257009943,0cyclictest9573-21awk12:10:381
257009943,0cyclictest4990-21awk11:30:391
257009943,0cyclictest3524-21snmpd12:31:211
257009943,0cyclictest3524-21snmpd12:05:361
257009943,0cyclictest3524-21snmpd12:05:211
257009943,0cyclictest3524-21snmpd09:59:351
257009943,0cyclictest3524-21snmpd09:15:491
257009943,0cyclictest3524-21snmpd08:51:341
257009943,0cyclictest3524-21snmpd07:35:331
257009943,0cyclictest323-21awk10:50:371
257009943,0cyclictest3149-21awk12:25:371
257009943,0cyclictest31012-21awk11:45:391
257009943,0cyclictest28423-21awk10:10:361
257009943,0cyclictest23866-21awk09:10:351
257009943,0cyclictest20014-21awk08:00:361
257009943,0cyclictest11434-21awk11:15:381
257009940,0cyclictest0-21swapper/111:35:291
257009940,0cyclictest0-21swapper/110:00:251
256969944,0cyclictest4661-21diskmemload12:40:350
256969944,0cyclictest0-21swapper/011:59:170
256969943,0cyclictest9544-21awk09:00:370
256969943,0cyclictest9502-21awk12:10:370
256969943,0cyclictest733-21awk12:05:370
256969943,0cyclictest6903-21awk10:35:360
256969943,0cyclictest5332-21awk12:45:380
256969943,0cyclictest396-21awk10:50:380
256969943,0cyclictest3571-21lldpd11:09:440
256969943,0cyclictest3571-21lldpd08:10:390
256969943,0cyclictest3524-21snmpd12:32:210
256969943,0cyclictest3250-21irqbalance10:17:080
256969943,0cyclictest30743-21awk07:45:380
256969943,0cyclictest20215-21awk08:45:370
256969943,0cyclictest19816-21awk10:05:360
256969943,0cyclictest18310-21awk12:15:380
256969943,0cyclictest1757-21awk07:25:360
256969943,0cyclictest13603-21grep10:20:380
256969943,0cyclictest11361-21awk11:15:380
256969943,0cyclictest11226-21awk10:00:350
256969943,0cyclictest0-21swapper/008:50:330
256969940,0cyclictest25905-21munin-node07:20:330
259940,0migration/27876-21kthreadcore09:20:382
259940,0migration/27875-21kthreadcore10:15:402
259940,0migration/24608-21kthreadcore09:35:392
259940,0migration/219823-21sh08:00:342
249940,0watchdog/25216-21kthreadcore11:10:412
249940,0watchdog/224489-21cut11:20:412
249940,0watchdog/222982-21grep11:00:452
249940,0watchdog/214601-21grep11:15:412
249940,0watchdog/20-21swapper/210:45:372
249940,0watchdog/20-21swapper/207:50:322
249940,0watchdog/20-21swapper/207:45:402
179940,0migration/15492-21irqcore12:45:391
179940,0migration/130852-21sh09:34:441
179940,0migration/128938-21munin-node08:25:471
179940,0migration/128602-21taskset07:40:431
179940,0migration/127215-21kthreadcore09:50:391
179940,0migration/126332-21kthreadcore11:40:401
179940,0migration/126232-21df07:20:321
179940,0migration/121876-21kthreadcore10:05:381
179940,0migration/120575-21sh10:40:431
179940,0migration/120409-21kthreadcore12:15:401
179940,0migration/117527-21kthreadcore08:40:401
179940,0migration/113838-21kthreadcore09:00:401
179940,0migration/111771-21aten_r1power_po07:55:321
169940,0watchdog/16314-21runrttasks10:30:481
169940,0watchdog/14684-21sort07:50:321
169940,0watchdog/13509-21ssh12:44:171
169940,0watchdog/127644-21ssh10:26:041
169940,0watchdog/124341-21ssh09:48:521
169940,0watchdog/123627-21sh11:01:291
169940,0watchdog/10-21swapper/111:23:011
169940,0watchdog/10-21swapper/111:05:371
149940,0migration/09850-21sh10:00:200
149940,0migration/07043-21kthreadcore11:10:410
149940,0migration/03041-21kthreadcore08:55:380
149940,0migration/022778-21kthreadcore12:35:380
149940,0migration/018695-21kthreadcore09:25:390
149940,0migration/017012-21kthreadcore11:35:410
149940,0migration/014493-21switchtime10:55:470
8305030,0irq/26-0000:00:0-21swapper/308:00:333
329930,0watchdog/30-21swapper/307:50:323
29815030,0irq/29-eth0-tx-0-21swapper/008:40:350
29815030,0irq/29-eth0-tx-0-21swapper/008:05:420
29805030,0irq/28-eth0-rx-0-21swapper/309:10:303
29805030,0irq/28-eth0-rx-0-21swapper/308:50:333
29805030,0irq/28-eth0-rx-0-21swapper/307:30:323
257089932,0cyclictest8199-21aten_r1power_cu08:15:332
257009933,0cyclictest30634-21awk07:45:381
257009933,0cyclictest0-21swapper/108:37:391
257009933,0cyclictest0-21swapper/107:26:231
257009932,0cyclictest16541-21awk08:20:371
257009930,0cyclictest30230-21diskstats08:30:341
257009930,0cyclictest28419-21perl11:25:361
257009930,0cyclictest23682-21cut12:35:381
257009930,0cyclictest13278-21perl10:20:351
256969933,0cyclictest24885-21kworker/0:107:35:340
256969932,0cyclictest9299-21kthreadcore11:50:400
256969932,0cyclictest8906-21awk09:40:360
256969932,0cyclictest4661-21diskmemload11:34:190
256969932,0cyclictest3571-21lldpd11:24:440
256969932,0cyclictest3524-21snmpd09:48:110
256969932,0cyclictest31068-21awk09:15:370
256969932,0cyclictest27280-21ssh10:10:230
256969932,0cyclictest22454-21tail11:40:380
256969930,0cyclictest28687-21munin-node09:30:410
256969930,0cyclictest24161-21perl12:00:360
256969930,0cyclictest23045-21fschecks_count08:25:340
256969930,0cyclictest0-21swapper/010:45:370
256969930,0cyclictest0-21swapper/008:00:340
256969930,0cyclictest0-21swapper/007:56:480
256969930,0cyclictest0-21swapper/007:40:480
249930,0watchdog/20-21swapper/207:55:402
169930,0watchdog/14661-21diskmemload09:25:441
169930,0watchdog/10-21swapper/111:10:251
169930,0watchdog/10-21swapper/110:55:371
169930,0watchdog/10-21swapper/110:15:401
149930,0migration/012307-21kthreadcore08:15:400
257009921,0cyclictest1085-21seq08:55:221
256969921,0cyclictest8166-21cpu07:30:320
169920,0watchdog/10-21swapper/108:45:281
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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