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2026-06-06 - 22:20
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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 Sat Jun 06, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1842525341,0sleep10-21swapper/107:22:051
1838924737,0sleep30-21swapper/307:21:433
1839823829,0sleep20-21swapper/207:21:502
1836623228,0sleep00-21swapper/007:21:240
339970,0migration/326628-21sh11:12:273
339960,0migration/38716-21sh11:00:333
339960,0migration/36857-21sh10:41:193
339960,0migration/3340-21sh10:56:453
339960,0migration/318772-21sh12:24:273
29815060,0irq/29-eth0-tx-1430-21munin-node09:04:540
29805060,0irq/28-eth0-rx-30659-21perl11:34:473
29805060,0irq/28-eth0-rx-10708-21grep10:24:523
187119966,0cyclictest0-21swapper/212:19:532
187079963,0cyclictest22947-21kworker/0:112:24:510
187079960,0cyclictest0-21swapper/010:42:270
149960,0migration/03903-21smart_sda11:34:560
149960,0migration/023613-21sh10:50:000
35150,0ktimersoftd/30-21swapper/309:46:513
339950,0migration/39205-21hddtemp_smartct07:39:483
339950,0migration/36595-21kthreadcore11:19:513
339950,0migration/36153-21kthreadcore09:04:513
339950,0migration/331441-21kthreadcore07:54:503
339950,0migration/331336-21kernelversion12:49:503
339950,0migration/330009-21taskset09:22:403
339950,0migration/329197-21kthreadcore08:14:503
339950,0migration/32755-21gltestperf12:14:483
339950,0migration/327035-21kthreadcore10:34:513
339950,0migration/324847-21irqrtprio11:49:493
339950,0migration/324844-21kthreadcore12:24:513
339950,0migration/324806-21aten_r1power_cu09:39:453
339950,0migration/322993-21kthreadcore12:44:513
339950,0migration/322742-21taskset09:17:043
339950,0migration/321961-21fschecks_time10:14:473
339950,0migration/318645-21kthreadcore10:29:523
339950,0migration/314574-21munin-node08:24:543
339950,0migration/31452-21kthreadcore09:24:503
339950,0migration/311392-21sh10:07:113
329950,0watchdog/34689-21aten_r1power_cu07:59:443
329950,0watchdog/315410-21cut10:09:523
329950,0watchdog/31284-21ntpdc09:59:523
29815050,0irq/29-eth0-tx-8241-21munin-node07:40:010
29815050,0irq/29-eth0-tx-4688-21munin-node07:59:530
29815050,0irq/29-eth0-tx-15947-21munin-node09:14:490
29815050,0irq/29-eth0-tx-12523-21munin-node10:09:562
29815050,0irq/29-eth0-tx-0-21swapper/008:52:420
29815050,0irq/29-eth0-tx-0-21swapper/007:34:530
29815050,0irq/29-eth0-tx-0-21swapper/007:30:260
29815050,0irq/29-eth0-tx-0-21swapper/007:27:160
29805050,0irq/28-eth0-rx-8909-21fschecks_count10:44:483
29805050,0irq/28-eth0-rx-880-21latency_hist07:34:333
29805050,0irq/28-eth0-rx-8127-21kthreadcore08:44:503
29805050,0irq/28-eth0-rx-7824-21ssh11:58:573
29805050,0irq/28-eth0-rx-4794-21tune2fs12:34:463
29805050,0irq/28-eth0-rx-26117-21ssh09:56:073
29805050,0irq/28-eth0-rx-21597-21kthreadcore10:49:513
29805050,0irq/28-eth0-rx-20302-21grep07:44:503
29805050,0irq/28-eth0-rx-2014-21ssh12:30:063
29805050,0irq/28-eth0-rx-20011-21cut11:44:523
29805050,0irq/28-eth0-rx-0-21swapper/312:41:273
29805050,0irq/28-eth0-rx-0-21swapper/311:59:463
29805050,0irq/28-eth0-rx-0-21swapper/311:41:463
29805050,0irq/28-eth0-rx-0-21swapper/311:05:363
29805050,0irq/28-eth0-rx-0-21swapper/310:22:243
29805050,0irq/28-eth0-rx-0-21swapper/309:50:513
29805050,0irq/28-eth0-rx-0-21swapper/309:34:513
29805050,0irq/28-eth0-rx-0-21swapper/309:30:223
259950,0migration/222446-21latency_hist07:49:332
187119955,0cyclictest0-21swapper/212:40:142
187119955,0cyclictest0-21swapper/211:44:532
187119955,0cyclictest0-21swapper/208:29:522
187119954,0cyclictest3524-21snmpd12:48:172
187099955,0cyclictest0-21swapper/107:24:581
187099950,0cyclictest0-21swapper/112:31:281
187079955,0cyclictest0-21swapper/011:39:410
187079950,0cyclictest0-21swapper/012:10:350
187079950,0cyclictest0-21swapper/011:49:180
187079950,0cyclictest0-21swapper/009:28:590
179950,0migration/1606-21munin-node08:59:591
179950,0migration/15913-21kthreadcore07:34:511
179950,0migration/13402-21missed_timers10:19:531
179950,0migration/132024-21timerwakeupswit10:54:591
179950,0migration/127907-21taskset12:45:061
179950,0migration/125590-21timerandwakeup12:24:581
179950,0migration/125163-21kthreadcore09:19:511
179950,0migration/123476-21aten_r1power_po10:34:451
179950,0migration/119838-21taskset12:41:341
179950,0migration/118869-21latency_hist11:09:331
179950,0migration/117822-21munin-node08:04:511
179950,0migration/115648-21sh10:46:501
179950,0migration/115630-21gltestperf10:29:481
169950,0watchdog/130988-21tr12:09:531
169950,0watchdog/11285-21awk09:59:521
149950,0migration/09941-21mdstat11:19:520
149950,0migration/07659-21kthreadcore08:44:500
149950,0migration/07463-21sendmail_mailtr08:19:560
149950,0migration/07065-21munin-node10:24:490
149950,0migration/05372-21kthreadcore12:14:530
149950,0migration/03664-21sendmail_mailqu07:54:550
149950,0migration/030479-21kthreadcore12:29:530
149950,0migration/030127-21kthreadcore09:59:500
149950,0migration/028924-21kthreadcore09:39:520
149950,0migration/026913-21kthreadcore12:44:520
149950,0migration/025887-21unixbench_multi08:54:590
149950,0migration/023975-21fschecks_time09:19:470
149950,0migration/02334-21kthreadcore12:49:510
149950,0migration/022294-21sh10:32:230
149950,0migration/021374-21aten_r1power_po11:29:460
149950,0migration/019880-21sh11:26:290
149950,0migration/019735-21fschecks_time09:54:460
149950,0migration/019291-21munin-node08:09:470
149950,0migration/013201-21kthreadcore11:59:510
149950,0migration/012682-21kthreadcore12:19:510
149950,0migration/011164-21fschecks_time11:04:470
149950,0migration/010930-21fschecks_count09:49:470
149950,0migration/01048-21kthreadcore08:39:520
8305040,0irq/26-0000:00:1999-21md0_raid110:14:332
8305040,0irq/26-0000:00:0-21swapper/212:04:482
8305040,0irq/26-0000:00:0-21swapper/209:49:472
8305040,0irq/26-0000:00:0-21swapper/209:29:482
339940,0migration/3418-21kthreadcore08:39:513
339940,0migration/329421-21unixbench_singl08:35:003
339940,0migration/329421-21unixbench_singl08:35:003
339940,0migration/328240-21kthreadcore12:09:523
339940,0migration/324612-21kthreadcore08:09:533
329940,0watchdog/30-21swapper/311:29:523
329940,0watchdog/30-21swapper/309:10:003
329940,0watchdog/30-21swapper/308:54:523
329940,0watchdog/30-21swapper/307:28:083
29815040,0irq/29-eth0-tx-27597-21munin-node09:59:482
29815040,0irq/29-eth0-tx-25867-21ssh12:25:062
29815040,0irq/29-eth0-tx-23415-21munin-node11:49:532
29815040,0irq/29-eth0-tx-19648-21ssh11:25:492
29815040,0irq/29-eth0-tx-18005-21ssh10:49:482
29815040,0irq/29-eth0-tx-15415-21munin-node07:44:430
29815040,0irq/29-eth0-tx-10418-21munin-node11:04:572
29815040,0irq/29-eth0-tx-0-21swapper/212:51:492
29815040,0irq/29-eth0-tx-0-21swapper/211:59:452
29815040,0irq/29-eth0-tx-0-21swapper/211:35:562
29815040,0irq/29-eth0-tx-0-21swapper/211:19:372
29815040,0irq/29-eth0-tx-0-21swapper/210:39:382
29815040,0irq/29-eth0-tx-0-21swapper/210:34:442
29815040,0irq/29-eth0-tx-0-21swapper/210:30:482
29815040,0irq/29-eth0-tx-0-21swapper/210:24:512
29815040,0irq/29-eth0-tx-0-21swapper/210:19:332
29815040,0irq/29-eth0-tx-0-21swapper/210:05:302
29815040,0irq/29-eth0-tx-0-21swapper/209:44:512
29815040,0irq/29-eth0-tx-0-21swapper/209:39:472
29815040,0irq/29-eth0-tx-0-21swapper/209:36:222
29805040,0irq/28-eth0-rx-0-21swapper/312:07:163
29805040,0irq/28-eth0-rx-0-21swapper/311:24:523
29805040,0irq/28-eth0-rx-0-21swapper/311:16:593
29805040,0irq/28-eth0-rx-0-21swapper/308:52:423
29805040,0irq/28-eth0-rx-0-21swapper/308:04:433
259940,0migration/27973-21munin-node10:59:562
259940,0migration/27421-21kthreadcore07:59:512
259940,0migration/26004-21rt-features11:54:552
259940,0migration/24509-21kthreadcore12:14:522
259940,0migration/24054-21switchtime08:39:592
259940,0migration/231857-21kthreadcore08:14:512
259940,0migration/229679-21kthreadcore11:14:502
259940,0migration/220553-21kthreadcore07:24:482
259940,0migration/214694-21kthreadcore08:49:492
259940,0migration/211783-21kthreadcore08:24:512
249940,0watchdog/230987-21cut12:09:532
249940,0watchdog/228165-21df_inode12:29:492
249940,0watchdog/21832-21perl08:19:482
249940,0watchdog/20-21swapper/211:39:522
249940,0watchdog/20-21swapper/211:09:402
249940,0watchdog/20-21swapper/210:44:522
249940,0watchdog/20-21swapper/208:59:522
187119944,0cyclictest0-21swapper/208:54:562
187119943,0cyclictest9790-21awk09:09:482
187119943,0cyclictest5073-21awk12:34:472
187119943,0cyclictest3571-21lldpd07:35:272
187119943,0cyclictest3524-21snmpd08:48:292
187119943,0cyclictest3524-21snmpd08:08:142
187119943,0cyclictest3250-21irqbalance10:57:402
187119943,0cyclictest31501-21awk09:24:472
187119943,0cyclictest22339-21awk11:29:502
187119943,0cyclictest20161-21awk08:09:502
187119943,0cyclictest20095-21awk09:54:482
187119940,0cyclictest0-21swapper/209:23:232
187099944,0cyclictest0-21swapper/112:04:301
187099944,0cyclictest0-21swapper/110:50:151
187099944,0cyclictest0-21swapper/110:14:371
187099943,0cyclictest9854-21awk09:09:481
187099943,0cyclictest5109-21awk11:19:491
187099943,0cyclictest3571-21lldpd12:20:001
187099943,0cyclictest3571-21lldpd11:14:591
187099943,0cyclictest3571-21lldpd09:40:281
187099943,0cyclictest3571-21lldpd08:30:271
187099943,0cyclictest3524-21snmpd08:11:291
187099943,0cyclictest3524-21snmpd08:02:141
187099943,0cyclictest3524-21snmpd07:55:591
187099943,0cyclictest31293-21awk08:39:501
187099943,0cyclictest30950-21awk11:34:491
187099943,0cyclictest30864-21awk12:49:481
187099943,0cyclictest29599-21sadc11:34:331
187099943,0cyclictest27291-21awk07:29:481
187099943,0cyclictest20452-21awk08:54:491
187099943,0cyclictest20111-21awk09:54:481
187099940,0cyclictest0-21swapper/111:50:571
187079944,0cyclictest17902-21kworker/0:009:13:160
187079944,0cyclictest17902-21kworker/0:009:02:100
187079944,0cyclictest17902-21kworker/0:008:28:400
187079944,0cyclictest0-21swapper/011:03:250
187079944,0cyclictest0-21swapper/010:05:340
187079943,0cyclictest3571-21lldpd11:55:300
187079943,0cyclictest3571-21lldpd10:36:290
187079943,0cyclictest3524-21snmpd10:15:300
187079943,0cyclictest3524-21snmpd10:10:300
187079943,0cyclictest3524-21snmpd07:53:140
187079943,0cyclictest31776-21sadc11:54:330
187079943,0cyclictest27373-21sadc11:14:330
187079943,0cyclictest26659-21awk10:54:500
187079943,0cyclictest13752-21awk12:39:510
187079943,0cyclictest12955-21awk08:04:470
179940,0migration/17323-21kthreadcore08:44:501
179940,0migration/16141-21kthreadcore08:19:521
179940,0migration/16092-21kthreadcore10:04:511
179940,0migration/15906-21kthreadcore12:34:491
179940,0migration/15608-21munin-node10:39:521
179940,0migration/129017-21kthreadcore08:14:501
179940,0migration/11831-21fschecks_count09:44:461
179940,0migration/115538-21kthreadcore08:49:491
179940,0migration/115313-21kthreadcore11:24:511
179940,0migration/114810-21taskset09:32:391
179940,0migration/113129-21taskset11:40:301
179940,0migration/11259-21kthreadcore11:54:501
179940,0migration/110811-21kthreadcore10:24:521
169940,0watchdog/131624-21munin-node09:24:481
169940,0watchdog/123539-21tr11:09:521
169940,0watchdog/116014-21aten_r1power_fr09:14:441
169940,0watchdog/114872-21cut11:44:441
169940,0watchdog/111720-21kthreadcore07:39:521
169940,0watchdog/10-21swapper/112:14:531
169940,0watchdog/10-21swapper/112:06:211
149940,0migration/030414-21fschecks_count10:19:470
149940,0migration/016955-21irqcore08:29:490
329930,0watchdog/30-21swapper/308:59:523
329930,0watchdog/30-21swapper/307:52:243
329930,0watchdog/30-21swapper/307:29:363
29805030,0irq/28-eth0-rx-0-21swapper/308:19:463
187119932,0cyclictest9346-21awk07:39:502
187119932,0cyclictest3571-21lldpd07:54:562
187119932,0cyclictest28959-21pluginstate08:34:552
187119932,0cyclictest28959-21pluginstate08:34:552
187119932,0cyclictest2494-21awk09:04:482
187119930,0cyclictest26811-21perl07:29:462
187119930,0cyclictest23414-21perl07:49:482
187099932,0cyclictest9576-21awk08:24:491
187099932,0cyclictest23932-21awk08:34:491
187099932,0cyclictest23932-21awk08:34:491
187099932,0cyclictest23686-21awk07:49:491
187099932,0cyclictest17062-21awk09:34:491
187079933,0cyclictest22947-21kworker/0:112:04:510
187079933,0cyclictest22947-21kworker/0:111:14:490
187079933,0cyclictest22947-21kworker/0:109:44:440
187079933,0cyclictest17902-21kworker/0:008:34:460
187079933,0cyclictest17902-21kworker/0:008:34:460
187079933,0cyclictest17902-21kworker/0:008:14:340
187079932,0cyclictest8116-21awk09:29:490
187079932,0cyclictest5147-21awk12:34:480
187079932,0cyclictest17038-21awk09:34:490
187079932,0cyclictest10865-21kthreadcore10:44:520
179930,0migration/13173-21irqrtprio10:59:511
169930,0watchdog/13552-21lldpd09:09:281
169930,0watchdog/10-21swapper/110:09:521
169930,0watchdog/10-21swapper/109:49:521
169930,0watchdog/10-21swapper/107:44:521
329920,0watchdog/30-21swapper/308:29:443
187119920,0cyclictest15714-21latency_hist09:14:322
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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