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2026-03-14 - 01:33
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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 Sat Mar 14, 2026 00:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
920724735,0sleep20-21swapper/219:17:112
886323625,0sleep10-21swapper/119:13:101
912323526,0sleep30-21swapper/319:16:123
886723522,0sleep00-21swapper/019:13:130
93109977,0cyclictest31149-21sadc20:17:342
93109966,0cyclictest20638-21diskmemload23:43:352
339960,0migration/3620-21kthreadcore20:17:523
339960,0migration/321951-21aten_r1power_cu23:47:463
149960,0migration/04249-21kthreadcore23:17:510
149960,0migration/031498-21sh21:41:100
149960,0migration/016399-21sh00:19:310
149960,0migration/010291-21sh22:07:120
149960,0migration/010032-21kthreadcore23:57:520
93109955,0cyclictest0-21swapper/200:05:022
93109950,0cyclictest0-21swapper/223:50:222
93109950,0cyclictest0-21swapper/222:56:272
93109950,0cyclictest0-21swapper/200:40:492
93099955,0cyclictest20638-21diskmemload22:21:141
93099955,0cyclictest0-21swapper/123:02:421
93099955,0cyclictest0-21swapper/100:02:371
93099954,0cyclictest9837-21grep00:17:491
93099950,0cyclictest0-21swapper/121:42:081
93099950,0cyclictest0-21swapper/100:45:581
93099950,0cyclictest0-21swapper/100:30:221
93089955,0cyclictest0-21swapper/023:13:130
93089950,0cyclictest0-21swapper/022:56:310
8305050,0irq/26-0000:00:2396-21crond20:42:342
8305050,0irq/26-0000:00:16928-21proc_pri22:07:552
8305050,0irq/26-0000:00:16928-21proc_pri22:07:552
339950,0migration/39729-21taskset20:02:363
339950,0migration/39677-21munin-node21:47:503
339950,0migration/39194-21runrttasks22:04:103
339950,0migration/36676-21diskmemload22:42:463
339950,0migration/36109-21aten_r1power_po21:27:463
339950,0migration/35999-21taskset19:37:343
339950,0migration/35889-21kthreadcore22:57:533
339950,0migration/34115-21munin-node22:37:553
339950,0migration/332670-21kthreadcore22:17:523
339950,0migration/330967-21irqcore21:22:503
339950,0migration/328770-21sh21:21:203
339950,0migration/327559-21latency22:32:543
339950,0migration/325182-21idleruntime00:07:503
339950,0migration/325072-21munin-node19:27:483
339950,0migration/318278-21munin-node21:52:513
339950,0migration/318278-21munin-node21:52:513
339950,0migration/316071-21fschecks_count00:02:483
339950,0migration/313755-21fschecks_count23:42:493
339950,0migration/313104-21kthreadcore19:17:513
329950,0watchdog/35568-21taskset19:35:093
329950,0watchdog/33904-21iostat20:42:503
329950,0watchdog/318470-21ssh00:38:543
329950,0watchdog/311865-21perl23:22:463
329950,0watchdog/30-21swapper/323:37:463
329950,0watchdog/30-21swapper/319:22:453
29815050,0irq/29-eth0-tx-9526-21munin-node19:17:540
29815050,0irq/29-eth0-tx-4805-21fschecks_count22:22:492
29815050,0irq/29-eth0-tx-3524-21snmpd20:07:550
29815050,0irq/29-eth0-tx-17413-21munin-node23:07:522
29815050,0irq/29-eth0-tx-17222-21processes23:22:542
29815050,0irq/29-eth0-tx-17179-21munin-node21:52:552
29815050,0irq/29-eth0-tx-17179-21munin-node21:52:552
29815050,0irq/29-eth0-tx-11408-21kthreadcore00:17:532
29815050,0irq/29-eth0-tx-0-21swapper/223:20:252
29815050,0irq/29-eth0-tx-0-21swapper/222:30:182
29815050,0irq/29-eth0-tx-0-21swapper/221:57:472
29815050,0irq/29-eth0-tx-0-21swapper/221:37:532
29815050,0irq/29-eth0-tx-0-21swapper/200:42:542
29815050,0irq/29-eth0-tx-0-21swapper/200:08:102
29815050,0irq/29-eth0-tx-0-21swapper/021:13:000
29815050,0irq/29-eth0-tx-0-21swapper/021:02:560
29815050,0irq/29-eth0-tx-0-21swapper/020:46:590
29815050,0irq/29-eth0-tx-0-21swapper/019:42:560
29805050,0irq/28-eth0-rx-4301-21sh22:22:403
29805050,0irq/28-eth0-rx-26643-21taskset00:27:503
29805050,0irq/28-eth0-rx-16807-21kthreadcore22:47:523
29805050,0irq/28-eth0-rx-16419-21kthreadcore21:32:523
29805050,0irq/28-eth0-rx-14282-21tr22:07:523
29805050,0irq/28-eth0-rx-14282-21tr22:07:523
29805050,0irq/28-eth0-rx-0-21swapper/323:32:513
29805050,0irq/28-eth0-rx-0-21swapper/323:17:593
29805050,0irq/28-eth0-rx-0-21swapper/323:12:473
29805050,0irq/28-eth0-rx-0-21swapper/323:08:233
29805050,0irq/28-eth0-rx-0-21swapper/323:02:523
29805050,0irq/28-eth0-rx-0-21swapper/322:52:543
29805050,0irq/28-eth0-rx-0-21swapper/322:32:033
29805050,0irq/28-eth0-rx-0-21swapper/322:12:453
29805050,0irq/28-eth0-rx-0-21swapper/321:59:493
29805050,0irq/28-eth0-rx-0-21swapper/321:42:533
29805050,0irq/28-eth0-rx-0-21swapper/300:32:533
29805050,0irq/28-eth0-rx-0-21swapper/300:24:353
29805050,0irq/28-eth0-rx-0-21swapper/300:20:003
259950,0migration/29081-21cpuspeed_turbos23:02:472
259950,0migration/27552-21gltestperf22:42:492
259950,0migration/25814-21sh23:55:302
259950,0migration/2474-21kthreadcore23:32:542
259950,0migration/24653-21kthreadcore22:57:532
259950,0migration/223044-21kthreadcore21:17:522
259950,0migration/218677-21fschecks_time00:22:462
259950,0migration/217627-21kthreadcore21:32:522
259950,0migration/21103-21kthreadcore22:37:512
249950,0watchdog/2908-21if_err_eth021:42:502
249950,0watchdog/27546-21if_eth121:07:502
249950,0watchdog/26396-21kthreadcore19:57:532
249950,0watchdog/24925-21cut23:37:462
249950,0watchdog/219947-21df23:27:462
249950,0watchdog/215858-21ssh21:49:422
249950,0watchdog/20-21swapper/222:47:542
179950,0migration/18177-21kthreadcore19:37:511
179950,0migration/16795-21fschecks_count20:22:471
179950,0migration/15379-21idleruntime22:22:511
179950,0migration/14356-21kthreadcore23:17:511
179950,0migration/13263-21kthreadcore20:17:521
179950,0migration/128209-21unixbench-2d22:33:001
179950,0migration/126947-21fschecks_time23:12:491
179950,0migration/126644-21kthreadcore00:07:521
179950,0migration/120851-21kthreadcore19:22:521
179950,0migration/118634-21kthreadcore19:42:521
179950,0migration/116806-21kthreadcore23:42:531
179950,0migration/114120-21kthreadcore22:07:521
179950,0migration/114120-21kthreadcore22:07:521
179950,0migration/113921-21kthreadcore19:17:521
179950,0migration/113741-21kthreadcore00:37:521
179950,0migration/111851-21kthreadcore21:07:521
169950,0watchdog/14857-21ssh23:37:461
149950,0migration/08752-21kthreadcore20:22:510
149950,0migration/08614-21kthreadcore22:22:540
149950,0migration/08012-21munin-node21:07:510
149950,0migration/04158-21munin-node23:52:530
149950,0migration/0411-21kthreadcore22:17:520
149950,0migration/03790-21munin-node00:32:500
149950,0migration/032577-21aten_r1power_fr22:57:460
149950,0migration/031597-21fschecks_count19:32:480
149950,0migration/03031-21kthreadcore20:17:520
149950,0migration/029841-21kthreadcore00:07:530
149950,0migration/029645-21sh23:50:520
149950,0migration/027104-21kthreadcore19:27:490
149950,0migration/026683-21kthreadcore21:17:530
149950,0migration/026356-21kthreadcore20:12:510
149950,0migration/02416-21latency_hist19:57:340
149950,0migration/02343-21switchtime23:33:010
149950,0migration/023346-21latency_hist21:37:350
149950,0migration/022686-21kthreadcore23:27:510
149950,0migration/021723-21aten_r1power_cu22:32:460
149950,0migration/020054-21fschecks_time22:12:470
149950,0migration/019325-21irqrtprio00:22:500
149950,0migration/019103-21idleruntime-cro22:12:350
149950,0migration/019103-21idleruntime-cro22:12:350
149950,0migration/018851-21kthreadcore20:27:510
149950,0migration/018120-21fschecks_time23:07:470
149950,0migration/018082-21kthreadcore22:47:520
149950,0migration/016340-21kthreadcore22:27:520
149950,0migration/016146-21sh21:50:320
149950,0migration/016111-21rt-features20:47:560
149950,0migration/012029-21missed_timers21:27:530
149950,0migration/011517-21fschecks_count23:22:460
149950,0migration/010667-21munin-node23:37:530
93109943,0cyclictest3571-21lldpd21:02:432
93109943,0cyclictest3571-21lldpd20:27:422
93109943,0cyclictest3571-21lldpd19:52:422
93109943,0cyclictest3524-21snmpd21:01:182
93109943,0cyclictest3524-21snmpd20:34:182
93109943,0cyclictest3524-21snmpd20:07:172
93109943,0cyclictest3524-21snmpd19:48:172
93109943,0cyclictest3524-21snmpd19:40:022
93109943,0cyclictest3524-21snmpd19:34:172
93109943,0cyclictest3524-21snmpd19:25:172
93109943,0cyclictest3524-21snmpd19:20:172
93109943,0cyclictest27518-21awk00:27:532
93109943,0cyclictest18321-21awk20:52:502
93099944,0cyclictest0-21swapper/122:48:591
93099943,0cyclictest6185-21sadc21:07:351
93099943,0cyclictest3571-21lldpd22:14:441
93099943,0cyclictest3571-21lldpd22:02:451
93099943,0cyclictest3571-21lldpd21:29:141
93099943,0cyclictest3571-21lldpd20:52:121
93099943,0cyclictest3571-21lldpd19:57:411
93099943,0cyclictest3524-21snmpd20:54:331
93099943,0cyclictest3524-21snmpd20:08:321
93099943,0cyclictest3524-21snmpd00:12:491
93099943,0cyclictest3524-21snmpd00:01:041
93099943,0cyclictest31632-21awk23:52:501
93099943,0cyclictest31333-21awk22:37:491
93099943,0cyclictest25471-21awk20:57:501
93099943,0cyclictest16734-21sadc20:07:341
93099943,0cyclictest12176-21awk23:22:481
93089943,0cyclictest31349-21awk22:37:490
93089943,0cyclictest28678-21awk19:52:480
93089943,0cyclictest25432-21awk20:57:500
339940,0migration/321649-21kthreadcore20:52:523
339940,0migration/316956-21taskset20:07:373
339940,0migration/310135-21kthreadcore23:57:523
329940,0watchdog/36397-21kthreadcore19:57:533
329940,0watchdog/36369-21aten_r1power_po20:22:453
329940,0watchdog/316670-21kthreadcore21:12:503
329940,0watchdog/30-21swapper/321:39:183
329940,0watchdog/30-21swapper/320:12:533
329940,0watchdog/30-21swapper/300:42:463
29815040,0irq/29-eth0-tx-6830-21ssh23:57:412
29815040,0irq/29-eth0-tx-17172-21telnet20:52:440
29815040,0irq/29-eth0-tx-0-21swapper/222:32:432
29815040,0irq/29-eth0-tx-0-21swapper/222:03:082
29815040,0irq/29-eth0-tx-0-21swapper/221:22:512
29815040,0irq/29-eth0-tx-0-21swapper/200:32:452
29805040,0irq/28-eth0-rx-16268-21kthreadcore19:42:523
29805040,0irq/28-eth0-rx-0-21swapper/323:53:153
29805040,0irq/28-eth0-rx-0-21swapper/323:28:363
29805040,0irq/28-eth0-rx-0-21swapper/320:37:493
29805040,0irq/28-eth0-rx-0-21swapper/319:47:513
29805040,0irq/28-eth0-rx-0-21swapper/300:13:063
259940,0migration/2601-21kthreadcore20:17:522
259940,0migration/228704-21fschecks_time22:17:472
259940,0migration/228376-21kthreadcore23:12:522
259940,0migration/225388-21irqrtprio19:27:492
259940,0migration/219409-21kthreadcore20:07:502
259940,0migration/218601-21kthreadcore19:42:522
259940,0migration/21831-21irqrtprio00:12:512
259940,0migration/211803-21kthreadcore21:27:522
249940,0watchdog/220586-21ssh22:12:502
249940,0watchdog/214463-21fschecks_time21:12:462
179940,0migration/15598-21kthreadcore20:42:511
179940,0migration/13273-21kthreadcore19:32:521
179940,0migration/131360-21kthreadcore23:32:531
179940,0migration/130848-21kthreadcore20:37:521
179940,0migration/124941-21kthreadcore23:27:521
179940,0migration/123661-21kthreadcore21:17:521
179940,0migration/122483-21kthreadcore23:07:511
179940,0migration/120542-21aten_r1power_po19:47:461
179940,0migration/119913-21switchtime21:12:571
179940,0migration/117991-21kthreadcore20:27:511
179940,0migration/117892-21aten_r1power_po00:22:441
179940,0migration/11725-21kthreadcore21:22:521
179940,0migration/117094-21kthreadcore22:27:521
179940,0migration/114702-21latency_hist21:32:351
169940,0watchdog/19658-21munin-node21:47:501
169940,0watchdog/130132-21mailstats19:27:531
169940,0watchdog/125917-21cut21:57:461
169940,0watchdog/10-21swapper/123:02:261
169940,0watchdog/10-21swapper/121:55:421
169940,0watchdog/10-21swapper/121:55:421
169940,0watchdog/10-21swapper/100:32:581
149940,0migration/030435-21fschecks_time21:22:470
149940,0migration/02430-21latency_hist20:42:340
149940,0migration/020085-21sh23:43:180
149940,0migration/01837-21irqrtprio00:12:510
149940,0migration/012389-21kthreadcore22:42:530
93109932,0cyclictest3571-21lldpd20:47:422
93109932,0cyclictest3571-21lldpd20:42:432
93109932,0cyclictest3524-21snmpd20:23:172
93099933,0cyclictest0-21swapper/120:33:151
93099932,0cyclictest30436-21grep22:53:031
93099932,0cyclictest28742-21awk19:52:491
93099932,0cyclictest23073-21awk23:47:511
93099930,0cyclictest0-21swapper/120:13:021
93089933,0cyclictest3682-21kworker/0:100:02:520
93089933,0cyclictest0-21swapper/021:57:420
93089933,0cyclictest0-21swapper/000:43:050
93089932,0cyclictest959-21awk21:42:500
93089932,0cyclictest9233-21kthreadcore19:37:510
93089932,0cyclictest3524-21snmpd20:06:170
93089932,0cyclictest27469-21awk00:27:530
93089932,0cyclictest23511-21sensors21:52:570
93089932,0cyclictest23511-21sensors21:52:570
93089932,0cyclictest20418-21munin-node19:47:580
93089930,0cyclictest16747-21munin-node19:22:510
93089930,0cyclictest13094-21cut00:37:510
93089930,0cyclictest0-21swapper/023:02:520
35130,0ktimersoftd/30-21swapper/320:49:143
329930,0watchdog/30-21swapper/321:07:503
329930,0watchdog/30-21swapper/320:57:463
329930,0watchdog/30-21swapper/320:27:463
29805030,0irq/28-eth0-rx-0-21swapper/321:05:573
29805030,0irq/28-eth0-rx-0-21swapper/320:32:463
169930,0watchdog/10-21swapper/122:42:381
169930,0watchdog/10-21swapper/121:42:501
93089920,0cyclictest21443-21grep20:32:480
329920,0watchdog/30-21swapper/319:52:413
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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