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2026-08-31 - 08:23
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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 Aug 31, 2026 00:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1865624938,0sleep30-21swapper/319:27:053
1900823626,0sleep20-21swapper/219:31:122
1874123627,0sleep10-21swapper/119:28:031
1874523423,0sleep00-21swapper/019:28:060
4160,0ktimersoftd/00-21swapper/023:20:590
339960,0migration/330830-21sh23:04:373
339960,0migration/330688-21fschecks_time22:46:483
339960,0migration/325403-21munin-node23:21:463
339960,0migration/319989-21sh23:56:273
339960,0migration/31681-21sh01:01:153
339960,0migration/31361-21sh23:42:113
339960,0migration/311015-21sh23:50:203
29815060,0irq/29-eth0-tx-23422-21munin-node21:26:590
29805060,0irq/28-eth0-rx-1521-21iostat_ios00:41:503
29805060,0irq/28-eth0-rx-12866-21munin-node22:52:043
29805060,0irq/28-eth0-rx-0-21swapper/322:11:523
29805060,0irq/28-eth0-rx-0-21swapper/321:35:433
191119960,0cyclictest0-21swapper/220:11:492
191099966,0cyclictest0-21swapper/021:33:090
149960,0migration/07667-21sh23:11:200
149960,0migration/027489-21fschecks_count23:41:480
149960,0migration/021876-21taskset22:58:250
149960,0migration/02001-21switchtime22:26:590
149960,0migration/019637-21sh22:37:150
149960,0migration/017798-21cpuspeed_turbos22:01:460
339950,0migration/37568-21munin-node23:26:563
339950,0migration/35509-21runrttasks00:23:063
339950,0migration/34979-21kthreadcore19:41:533
339950,0migration/328462-21munin-node00:16:563
339950,0migration/327530-21kthreadcore19:56:503
339950,0migration/32306-21kthreadcore20:46:503
339950,0migration/323056-21runrttasks21:44:483
339950,0migration/322805-21turbostat19:56:323
339950,0migration/319416-21kthreadcore23:16:523
339950,0migration/318952-21kthreadcore00:31:523
339950,0migration/316477-21runrttasks21:59:133
339950,0migration/312975-21latency00:26:543
339950,0migration/312098-21latency_hist20:11:333
339950,0migration/311303-21kthreadcore00:46:513
339950,0migration/310057-21kthreadcore20:51:523
329950,0watchdog/313636-21ssh21:37:163
329950,0watchdog/30-21swapper/322:39:283
329950,0watchdog/30-21swapper/322:04:203
29815050,0irq/29-eth0-tx-19322-21munin-node19:31:530
29815050,0irq/29-eth0-tx-15518-40yum-updatesd-he20:33:470
29815050,0irq/29-eth0-tx-0-21swapper/021:06:460
29805050,0irq/28-eth0-rx-30507-21kthreadcore19:36:513
29805050,0irq/28-eth0-rx-29014-21ssh22:26:483
29805050,0irq/28-eth0-rx-25084-21cut19:31:503
29805050,0irq/28-eth0-rx-24097-21cut23:56:533
29805050,0irq/28-eth0-rx-20410-21gltestperf20:16:473
29805050,0irq/28-eth0-rx-1708-21grep23:06:493
29805050,0irq/28-eth0-rx-0-21swapper/323:15:023
29805050,0irq/28-eth0-rx-0-21swapper/323:01:053
29805050,0irq/28-eth0-rx-0-21swapper/322:31:513
29805050,0irq/28-eth0-rx-0-21swapper/321:52:433
29805050,0irq/28-eth0-rx-0-21swapper/321:50:383
29805050,0irq/28-eth0-rx-0-21swapper/320:56:453
29805050,0irq/28-eth0-rx-0-21swapper/300:37:303
29805050,0irq/28-eth0-rx-0-21swapper/300:11:443
29805050,0irq/28-eth0-rx-0-21swapper/300:08:133
29805050,0irq/28-eth0-rx-0-21swapper/300:01:453
27150,0ktimersoftd/20-21swapper/223:20:592
259950,0migration/226797-21latency_hist23:41:332
191119955,0cyclictest0-21swapper/222:46:572
191119955,0cyclictest0-21swapper/200:03:532
191119954,0cyclictest2295-21awk23:26:482
191119950,0cyclictest0-21swapper/223:51:552
191119950,0cyclictest0-21swapper/223:41:592
191119950,0cyclictest0-21swapper/222:21:442
191119950,0cyclictest0-21swapper/222:05:292
191119950,0cyclictest0-21swapper/200:33:132
191109950,0cyclictest0-21swapper/121:33:521
191109950,0cyclictest0-21swapper/121:11:481
191099955,0cyclictest0-21swapper/023:37:550
191099955,0cyclictest0-21swapper/022:24:080
191099955,0cyclictest0-21swapper/022:00:100
191099954,0cyclictest23409-21grep00:16:500
191099950,0cyclictest0-21swapper/021:50:050
191099950,0cyclictest0-21swapper/000:15:360
19150,0ktimersoftd/10-21swapper/123:20:591
179950,0migration/18369-21kthreadcore20:06:501
179950,0migration/116710-21if_eth000:31:501
179950,0migration/114000-21kthreadcore23:51:511
169950,0watchdog/130935-21kthreadcore22:06:521
149950,0migration/08415-21taskset21:12:310
149950,0migration/05042-21kthreadcore22:11:510
149950,0migration/04744-21taskset20:48:130
149950,0migration/04172-21kthreadcore21:51:530
149950,0migration/032664-21munin-node22:06:590
149950,0migration/032552-21unixbench-2d00:56:580
149950,0migration/029897-21munin-node00:01:490
149950,0migration/029800-21kthreadcore00:36:540
149950,0migration/026740-21switchtime23:57:000
149950,0migration/025919-21kthreadcore23:01:490
149950,0migration/025230-21aten_r1power_vo23:21:450
149950,0migration/020163-21fschecks_count21:01:450
149950,0migration/018451-21kthreadcore21:21:490
149950,0migration/018386-21kthreadcore20:36:490
149950,0migration/016054-21cpuspeed_turbos19:51:450
149950,0migration/015192-21kthreadcore23:51:520
149950,0migration/014070-21kthreadcore21:16:510
149950,0migration/013132-21sh21:36:550
149950,0migration/011903-21kthreadcore19:46:500
339940,0migration/39158-21aten2.4-expect21:16:453
339940,0migration/38587-21taskset21:14:303
339940,0migration/35721-21kthreadcore20:26:513
339940,0migration/34527-21taskset20:03:013
339940,0migration/327152-21kthreadcore21:26:523
339940,0migration/322090-21kthreadcore23:36:523
339940,0migration/320939-21kthreadcore20:36:503
329940,0watchdog/319145-21chrt20:15:113
329940,0watchdog/30-21swapper/322:21:363
329940,0watchdog/30-21swapper/321:21:443
329940,0watchdog/30-21swapper/321:06:523
329940,0watchdog/30-21swapper/320:41:523
29815040,0irq/29-eth0-tx-8123-21ssh23:11:452
29815040,0irq/29-eth0-tx-14527-21ssh00:29:182
29815040,0irq/29-eth0-tx-0-21swapper/222:53:362
29815040,0irq/29-eth0-tx-0-21swapper/222:36:362
29815040,0irq/29-eth0-tx-0-21swapper/222:27:282
29815040,0irq/29-eth0-tx-0-21swapper/221:53:432
29815040,0irq/29-eth0-tx-0-21swapper/221:49:282
29815040,0irq/29-eth0-tx-0-21swapper/221:45:172
29815040,0irq/29-eth0-tx-0-21swapper/200:51:482
29815040,0irq/29-eth0-tx-0-21swapper/200:47:442
29815040,0irq/29-eth0-tx-0-21swapper/200:40:202
29815040,0irq/29-eth0-tx-0-21swapper/200:11:392
29815040,0irq/29-eth0-tx-0-21swapper/200:07:222
29815040,0irq/29-eth0-tx-0-21swapper/019:41:510
29805040,0irq/28-eth0-rx-9040-21diskstats19:46:453
29805040,0irq/28-eth0-rx-0-21swapper/323:31:503
29805040,0irq/28-eth0-rx-0-21swapper/322:41:353
29805040,0irq/28-eth0-rx-0-21swapper/322:16:553
29805040,0irq/28-eth0-rx-0-21swapper/322:07:393
29805040,0irq/28-eth0-rx-0-21swapper/320:31:443
29805040,0irq/28-eth0-rx-0-21swapper/300:51:473
259940,0migration/29138-21kthreadcore22:31:522
259940,0migration/26348-21latency00:41:532
259940,0migration/228795-21kthreadcore00:56:502
259940,0migration/226355-21runrttasks21:03:162
259940,0migration/226030-21latency_hist22:06:332
259940,0migration/225864-21kthreadcore23:01:492
259940,0migration/219528-21kthreadcore19:51:512
259940,0migration/215484-21runrttasks20:33:182
259940,0migration/211040-21aten_r1power_po22:16:452
191119943,0cyclictest6830-21munin-node21:36:552
191119943,0cyclictest4291-21awk23:46:492
191119943,0cyclictest3571-21lldpd20:26:352
191119943,0cyclictest3524-21snmpd23:56:392
191119943,0cyclictest3524-21snmpd23:09:232
191119943,0cyclictest3524-21snmpd21:56:522
191119943,0cyclictest3524-21snmpd21:31:522
191119943,0cyclictest27674-21awk19:36:492
191119943,0cyclictest15894-21awk22:56:502
191119943,0cyclictest13525-21awk20:56:472
191119943,0cyclictest11027-21awk23:31:492
191119941,0cyclictest2258-21munin-node22:11:542
191119940,0cyclictest0-21swapper/200:21:522
191109944,0cyclictest0-21swapper/123:45:021
191109943,0cyclictest5434-21awk22:31:501
191109943,0cyclictest3571-21lldpd23:56:371
191109943,0cyclictest3571-21lldpd23:16:061
191109943,0cyclictest3571-21lldpd22:46:351
191109943,0cyclictest3571-21lldpd21:54:051
191109943,0cyclictest3571-21lldpd21:07:051
191109943,0cyclictest3571-21lldpd21:03:051
191109943,0cyclictest3571-21lldpd20:51:351
191109943,0cyclictest3571-21lldpd19:51:351
191109943,0cyclictest3571-21lldpd19:47:041
191109943,0cyclictest3571-21lldpd19:31:341
191109943,0cyclictest3524-21snmpd21:21:371
191109943,0cyclictest3250-21irqbalance23:48:201
191109943,0cyclictest3250-21irqbalance22:51:491
191109943,0cyclictest3250-21irqbalance22:26:391
191109943,0cyclictest3250-21irqbalance21:36:491
191109943,0cyclictest3250-21irqbalance21:17:091
191109943,0cyclictest31797-21awk00:21:491
191109943,0cyclictest31526-21awk20:46:481
191109943,0cyclictest20677-21awk22:21:481
191109943,0cyclictest13957-21awk22:36:481
191109943,0cyclictest1387-21awk00:41:491
191109943,0cyclictest13581-21awk20:56:481
191109943,0cyclictest11966-21awk22:16:481
191099943,0cyclictest3524-21snmpd22:35:230
191099943,0cyclictest3524-21snmpd22:19:230
191099943,0cyclictest3524-21snmpd20:56:370
191099943,0cyclictest24089-21awk19:56:480
191099943,0cyclictest10052-21awk00:46:490
191099940,0cyclictest14422-21awk22:56:320
191099940,0cyclictest0-21swapper/020:11:450
179940,0migration/19465-21fschecks_count00:46:461
179940,0migration/13383-21kthreadcore19:41:531
179940,0migration/132144-21kthreadcore19:36:511
179940,0migration/130625-21kthreadcore20:21:511
179940,0migration/130509-21kthreadcore00:56:501
179940,0migration/128911-21aten_r1power_fr00:01:451
179940,0migration/127683-21kthreadcore00:36:531
179940,0migration/125753-21kthreadcore20:41:511
179940,0migration/125640-21kthreadcore23:01:491
179940,0migration/122050-21fschecks_time22:41:481
179940,0migration/120193-21kthreadcore22:56:531
179940,0migration/119183-21kthreadcore20:36:501
179940,0migration/118314-21latency_hist23:36:331
179940,0migration/117834-21cpuspeed_turbos22:01:461
179940,0migration/114072-21kthreadcore20:31:501
169940,0watchdog/131950-21cpu23:06:441
169940,0watchdog/131822-21ssh23:22:081
169940,0watchdog/127950-21kthreadcore00:16:521
169940,0watchdog/127619-21grep21:26:521
169940,0watchdog/123552-21kthreadcore20:16:511
169940,0watchdog/119952-21ssh00:11:561
169940,0watchdog/119244-21kthreadcore00:51:521
169940,0watchdog/115783-21df_abs21:41:481
169940,0watchdog/114088-21ssh00:28:001
169940,0watchdog/110626-21ssh22:16:321
169940,0watchdog/10-21swapper/123:26:521
169940,0watchdog/10-21swapper/121:56:521
169940,0watchdog/10-21swapper/121:46:481
169940,0watchdog/10-21swapper/120:26:481
149940,0migration/09327-21kthreadcore00:26:530
149940,0migration/08608-21kthreadcore20:51:520
149940,0migration/06930-21kthreadcore23:26:520
149940,0migration/03287-21kthreadcore20:01:510
149940,0migration/031357-21kthreadcore19:36:510
149940,0migration/024857-21kthreadcore20:16:520
149940,0migration/016097-21fschecks_time21:41:490
149940,0migration/015760-21runrttasks23:15:130
329930,0watchdog/30-21swapper/321:02:163
29815030,0irq/29-eth0-tx-0-21swapper/200:16:352
29805030,0irq/28-eth0-rx-0-21swapper/320:21:453
259930,0migration/231980-21kthreadcore20:46:492
249930,0watchdog/20-21swapper/220:16:472
191119932,0cyclictest9003-21aten_r1power_cu21:16:442
191119932,0cyclictest5622-21df_abs20:51:462
191119932,0cyclictest31234-21awk20:01:482
191119932,0cyclictest28228-21sed21:06:512
191119932,0cyclictest26709-21sh20:21:442
191119932,0cyclictest2630-21smartctl21:11:472
191119932,0cyclictest24980-21grep23:21:332
191119932,0cyclictest2453-21awk19:41:512
191119932,0cyclictest23321-21cpuspeed_turbos19:56:452
191119932,0cyclictest23293-21aten2.4-expect20:41:452
191119932,0cyclictest20113-21tune2fs19:31:462
191119932,0cyclictest17537-21irqstats20:36:492
191119932,0cyclictest17266-21if_err_eth1.221:21:472
191119931,0cyclictest24017-21grep21:26:472
191119931,0cyclictest11707-21kthreadcore19:46:502
191119930,0cyclictest5464-21df_abs20:06:452
191119930,0cyclictest21508-21aten2.4-expect22:41:462
191109932,0cyclictest13454-21awk20:11:471
191109930,0cyclictest31016-21perl20:01:461
191109930,0cyclictest17175-21ssh23:33:491
191099933,0cyclictest3571-21lldpd00:34:390
191099932,0cyclictest5857-21sadc22:51:320
191099932,0cyclictest12065-21sadc20:11:320
191099932,0cyclictest11002-21awk23:31:490
191099930,0cyclictest4040-21perl23:46:470
191099930,0cyclictest31160-21diskstats00:21:470
191099930,0cyclictest27574-21perl20:21:470
191099930,0cyclictest22267-21perl22:41:490
191099930,0cyclictest0-21swapper/020:41:450
191099930,0cyclictest0-21swapper/020:26:440
179930,0migration/124384-21irqcore19:56:491
169930,0watchdog/10-21swapper/100:06:521
149930,0migration/05039-21diskmemload00:06:400
191099921,0cyclictest17513-21sh00:51:450
191099920,0cyclictest0-21swapper/000:41:350
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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