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2026-07-25 - 12:33
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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 all highest latencies:
System rack1slot2.osadl.org (updated Sat Jul 25, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2188924140,0sleep00-21swapper/019:23:460
2184423727,0sleep30-21swapper/319:23:373
2850623526,0sleep20-21swapper/219:25:322
2839723525,0sleep10-21swapper/119:24:151
288339976,0cyclictest11563-21sadc22:08:312
8305060,0irq/26-0000:00:3308-21unixbench-2d20:58:552
4160,0ktimersoftd/00-21swapper/023:00:310
339960,0migration/38980-21munin-node23:03:443
339960,0migration/37353-21munin-node21:43:503
339960,0migration/36044-21sh00:16:173
339960,0migration/34589-21kthreadcore23:18:483
339960,0migration/331427-21latency20:33:503
339960,0migration/330859-21sh00:29:003
339960,0migration/328413-21sh23:52:173
339960,0migration/320582-21kthreadcore20:28:473
339960,0migration/310860-21fschecks_count23:23:453
29815060,0irq/29-eth0-tx-25624-21munin-node20:33:450
29815060,0irq/29-eth0-tx-25565-21munin-node19:48:470
29805060,0irq/28-eth0-rx-32209-21kthreadcore21:58:483
29805060,0irq/28-eth0-rx-31606-21sh22:57:133
29805060,0irq/28-eth0-rx-22739-21tr22:13:483
29805060,0irq/28-eth0-rx-20763-21kthreadcore23:28:483
29805060,0irq/28-eth0-rx-0-21swapper/322:20:263
288339966,0cyclictest0-21swapper/220:13:492
288339960,0cyclictest0-21swapper/222:17:252
288329960,0cyclictest0-21swapper/123:53:401
249960,0watchdog/220938-21rm00:43:502
149960,0migration/03249-21sh22:19:140
149960,0migration/01842-21sh22:00:080
149960,0migration/013680-21kthreadcore19:38:460
149960,0migration/012004-21fschecks_time20:23:430
149960,0migration/011469-21sh23:42:310
8305050,0irq/26-0000:00:30624-21perf00:13:312
8305050,0irq/26-0000:00:24765-21pmu-power21:53:522
8305050,0irq/26-0000:00:20029-21crond22:13:312
35150,0ktimersoftd/30-21swapper/321:57:113
339950,0migration/33578-21kthreadcore19:53:483
339950,0migration/332656-21sh00:33:393
339950,0migration/329829-21kthreadcore21:18:503
339950,0migration/328159-21fschecks_time23:33:453
339950,0migration/325263-21kthreadcore00:08:483
339950,0migration/324962-21latency_hist21:38:303
339950,0migration/322822-21fschecks_time20:08:443
339950,0migration/318061-21ksmtuned20:27:063
339950,0migration/314798-21latency_hist20:03:313
339950,0migration/314760-21taskset21:29:513
339950,0migration/313518-21sh22:28:333
339950,0migration/311933-21kthreadcore19:58:473
329950,0watchdog/34491-21ssh22:58:503
329950,0watchdog/322090-21munin-node22:33:423
329950,0watchdog/315101-21port_sshpriv00:38:543
329950,0watchdog/30-21swapper/323:53:463
329950,0watchdog/30-21swapper/319:38:453
29815050,0irq/29-eth0-tx-7907-21munin-node21:28:530
29815050,0irq/29-eth0-tx-22558-21port_sshpriv21:33:522
29815050,0irq/29-eth0-tx-20691-21sh23:48:442
29815050,0irq/29-eth0-tx-13315-21irqcore23:43:472
29815050,0irq/29-eth0-tx-12839-21ssh00:01:222
29815050,0irq/29-eth0-tx-10350-21munin-node23:23:452
29815050,0irq/29-eth0-tx-0-21swapper/222:46:472
29815050,0irq/29-eth0-tx-0-21swapper/222:38:492
29815050,0irq/29-eth0-tx-0-21swapper/200:53:522
29815050,0irq/29-eth0-tx-0-21swapper/200:35:592
29815050,0irq/29-eth0-tx-0-21swapper/200:17:112
29815050,0irq/29-eth0-tx-0-21swapper/020:43:400
29805050,0irq/28-eth0-rx-8891-21cut22:43:473
29805050,0irq/28-eth0-rx-6629-21kthreadcore22:23:483
29805050,0irq/28-eth0-rx-5163-21kthreadcore23:38:483
29805050,0irq/28-eth0-rx-28159-21kthreadcore00:48:493
29805050,0irq/28-eth0-rx-22478-21munin-node21:33:513
29805050,0irq/28-eth0-rx-19763-21ssh22:12:443
29805050,0irq/28-eth0-rx-14411-21uniq00:03:453
29805050,0irq/28-eth0-rx-12641-21fschecks_count23:43:443
29805050,0irq/28-eth0-rx-10733-21kthreadcore00:18:513
29805050,0irq/28-eth0-rx-0-21swapper/322:43:303
29805050,0irq/28-eth0-rx-0-21swapper/322:08:313
29805050,0irq/28-eth0-rx-0-21swapper/321:48:503
29805050,0irq/28-eth0-rx-0-21swapper/321:08:443
29805050,0irq/28-eth0-rx-0-21swapper/319:33:453
29805050,0irq/28-eth0-rx-0-21swapper/300:55:553
288339955,0cyclictest0-21swapper/222:01:202
288339955,0cyclictest0-21swapper/200:53:022
288339955,0cyclictest0-21swapper/200:22:172
288339950,0cyclictest7655-21diskmemload23:07:432
288339950,0cyclictest0-21swapper/223:55:572
288339950,0cyclictest0-21swapper/223:31:412
288339950,0cyclictest0-21swapper/221:50:562
288329954,0cyclictest31756-21awk22:38:471
288329954,0cyclictest1781-21grep21:23:461
288329950,0cyclictest0-21swapper/123:40:261
288329950,0cyclictest0-21swapper/121:59:131
288329950,0cyclictest0-21swapper/121:44:041
288329950,0cyclictest0-21swapper/100:15:351
288319955,0cyclictest0-21swapper/022:24:150
27150,0ktimersoftd/20-21swapper/223:17:202
259950,0migration/28690-21fschecks_time21:28:452
259950,0migration/230013-21proc_pri22:53:502
259950,0migration/215879-21kthreadcore21:08:492
259950,0migration/211309-21kthreadcore00:38:502
249950,0watchdog/24495-21cut22:58:502
249950,0watchdog/212431-21sed19:38:452
19150,0ktimersoftd/10-21swapper/121:50:231
179950,0migration/18060-21kthreadcore21:03:471
179950,0migration/17056-21taskset00:18:371
179950,0migration/14236-21kthreadcore00:53:501
179950,0migration/128544-21unixbench_multi20:53:561
179950,0migration/128133-21kthreadcore22:53:471
179950,0migration/125284-21kthreadcore20:08:481
179950,0migration/120210-21kthreadcore20:48:491
149950,0migration/08915-21kthreadcore22:43:470
149950,0migration/08520-21kthreadcore21:03:470
149950,0migration/05780-21kthreadcore20:18:470
149950,0migration/04352-21kthreadcore19:53:490
149950,0migration/04322-21kthreadcore21:43:490
149950,0migration/04120-21kthreadcore00:53:500
149950,0migration/03312-21kthreadcore21:23:470
149950,0migration/032744-21kthreadcore20:58:470
149950,0migration/028980-21latency_hist20:13:310
149950,0migration/02795-21taskset23:37:220
149950,0migration/026250-21kthreadcore00:28:490
149950,0migration/023243-21if_eth1.222:33:470
149950,0migration/022920-21fschecks_count00:08:430
149950,0migration/022285-21kthreadcore23:08:500
149950,0migration/021877-21kthreadcore00:43:510
149950,0migration/021821-21timerwakeupswit22:48:570
149950,0migration/021795-21taskset00:07:380
149950,0migration/01925-21kthreadcore20:13:490
149950,0migration/018716-21cpuspeed_turbos20:28:430
149950,0migration/016360-21aten2.4-expect21:33:410
149950,0migration/016017-21munin-node20:03:470
149950,0migration/014776-21kthreadcore21:48:500
149950,0migration/013020-21kthreadcore23:23:490
339940,0migration/36839-21irqrtprio23:58:493
339940,0migration/32798-21kthreadcore20:38:473
339940,0migration/320174-21kthreadcore21:13:493
339940,0migration/310730-21taskset20:20:143
329940,0watchdog/321753-21cat19:43:493
329940,0watchdog/30-21swapper/319:48:453
29815040,0irq/29-eth0-tx-29168-21telnet19:28:420
29815040,0irq/29-eth0-tx-20588-21ssh22:29:572
29815040,0irq/29-eth0-tx-17031-21ssh23:08:372
29815040,0irq/29-eth0-tx-15410-21telnet22:48:422
29815040,0irq/29-eth0-tx-0-21swapper/223:18:352
29815040,0irq/29-eth0-tx-0-21swapper/200:28:462
29815040,0irq/29-eth0-tx-0-21swapper/021:18:440
29805040,0irq/28-eth0-rx-21744-21ssh00:23:543
29805040,0irq/28-eth0-rx-0-21swapper/323:13:513
29805040,0irq/28-eth0-rx-0-21swapper/323:08:493
29805040,0irq/28-eth0-rx-0-21swapper/322:49:193
29805040,0irq/28-eth0-rx-0-21swapper/300:43:473
288339943,0cyclictest8726-21awk19:58:442
288339943,0cyclictest3685-21munin-run19:33:302
288339943,0cyclictest3571-21lldpd21:23:182
288339943,0cyclictest3571-21lldpd21:15:182
288339943,0cyclictest3571-21lldpd21:06:472
288339943,0cyclictest3571-21lldpd20:53:472
288339943,0cyclictest3571-21lldpd20:45:472
288339943,0cyclictest3571-21lldpd20:18:472
288339943,0cyclictest3571-21lldpd20:08:472
288339943,0cyclictest3250-21irqbalance22:18:572
288339943,0cyclictest3250-21irqbalance21:38:372
288339943,0cyclictest3250-21irqbalance19:53:372
288339943,0cyclictest3250-21irqbalance19:48:472
288339943,0cyclictest2412-21awk21:43:472
288339943,0cyclictest16815-21awk00:23:492
288339940,0cyclictest0-21swapper/220:29:162
288329944,0cyclictest0-21swapper/123:47:501
288329943,0cyclictest8767-21awk20:43:441
288329943,0cyclictest3571-21lldpd22:58:481
288329943,0cyclictest3571-21lldpd22:23:481
288329943,0cyclictest3524-21snmpd23:29:431
288329943,0cyclictest3524-21snmpd23:08:431
288329943,0cyclictest3524-21snmpd22:48:431
288329943,0cyclictest3524-21snmpd21:36:271
288329943,0cyclictest3524-21snmpd21:15:271
288329943,0cyclictest3524-21snmpd21:01:561
288329943,0cyclictest3524-21snmpd20:41:561
288329943,0cyclictest3524-21snmpd19:58:561
288329943,0cyclictest3524-21snmpd00:06:141
288329943,0cyclictest30351-21awk20:13:471
288329943,0cyclictest26179-21awk21:38:461
288329943,0cyclictest23545-21awk00:08:461
288329943,0cyclictest1435-21awk19:53:471
288329940,0cyclictest0-21swapper/119:29:161
288319944,0cyclictest0-21swapper/022:08:570
288319943,0cyclictest9602-21awk23:03:460
288319943,0cyclictest6543-21awk23:58:480
288319943,0cyclictest3571-21lldpd23:49:500
288319943,0cyclictest3571-21lldpd23:15:490
288319943,0cyclictest3571-21lldpd22:38:490
288319943,0cyclictest31689-21kworker/0:119:58:560
288319943,0cyclictest16724-21awk00:23:480
288319943,0cyclictest15938-21awk20:48:460
259940,0migration/2825-21taskset23:33:502
259940,0migration/25813-21kthreadcore19:33:472
259940,0migration/25097-21kernelversion23:38:482
259940,0migration/23898-21kthreadcore21:23:472
259940,0migration/223769-21kthreadcore22:33:482
259940,0migration/217858-21kthreadcore20:48:482
259940,0migration/215515-21fschecks_time20:03:442
259940,0migration/213899-21kthreadcore20:23:472
249940,0watchdog/214884-21idleruntime00:03:462
249940,0watchdog/211930-21ssh22:24:302
249940,0watchdog/20-21swapper/219:43:492
179940,0migration/18042-21kthreadcore22:03:491
179940,0migration/131393-21latency20:33:501
179940,0migration/129549-21kthreadcore23:33:481
179940,0migration/126719-21fschecks_time00:48:451
179940,0migration/126490-21fschecks_time21:18:461
179940,0migration/120617-21kthreadcore20:28:471
179940,0migration/120432-21aten_r1power_po22:13:431
179940,0migration/119428-21kthreadcore20:03:481
179940,0migration/117515-21switchtime20:23:551
179940,0migration/116562-21gltestperf00:23:471
179940,0migration/115915-21kthreadcore21:08:491
179940,0migration/113294-21kthreadcore00:38:511
179940,0migration/112950-21pmu-power22:43:511
179940,0migration/110938-21taskset20:22:451
179940,0migration/110902-21kthreadcore23:03:481
179940,0migration/110127-21processes19:33:511
169940,0watchdog/123880-21kthreadcore23:48:501
169940,0watchdog/120904-21ssh22:30:541
169940,0watchdog/118406-21ssh23:28:061
169940,0watchdog/110870-21cut23:58:501
169940,0watchdog/10-21swapper/119:48:451
169940,0watchdog/10-21swapper/100:43:501
149940,0migration/07899-21kthreadcore22:03:490
149940,0migration/029459-21kthreadcore21:38:490
149940,0migration/027472-21irqrtprio00:48:480
149940,0migration/026777-21timerandwakeup22:13:570
149940,0migration/017588-21kthreadcore23:43:490
149940,0migration/012254-21fschecks_time21:08:450
8305030,0irq/26-0000:00:0-21swapper/319:28:303
8305030,0irq/26-0000:00:0-21swapper/220:38:302
29815030,0irq/29-eth0-tx-0-21swapper/020:38:410
29815030,0irq/29-eth0-tx-0-21swapper/019:43:420
29805030,0irq/28-eth0-rx-0-21swapper/321:23:413
29805030,0irq/28-eth0-rx-0-21swapper/321:05:033
29805030,0irq/28-eth0-rx-0-21swapper/320:58:413
29805030,0irq/28-eth0-rx-0-21swapper/320:53:493
29805030,0irq/28-eth0-rx-0-21swapper/320:44:473
29805030,0irq/28-eth0-rx-0-21swapper/320:13:433
288339932,0cyclictest26657-21awk20:33:472
288329932,0cyclictest837-21cut22:18:491
288329932,0cyclictest7263-21sh00:34:321
288329932,0cyclictest12916-21awk22:08:461
288329931,0cyclictest6729-21iperf00:28:501
288329930,0cyclictest8328-21df_inode21:28:441
288329930,0cyclictest26085-21fschecks_count23:13:451
288329930,0cyclictest2421-21perl23:18:441
288319933,0cyclictest7258-21kworker/0:022:53:460
288319933,0cyclictest7258-21kworker/0:022:28:420
288319933,0cyclictest5097-21kworker/0:221:13:400
288319933,0cyclictest3571-21lldpd00:33:500
288319933,0cyclictest31689-21kworker/0:119:33:330
288319933,0cyclictest28811-21kworker/0:200:38:480
288319933,0cyclictest18051-21kworker/0:123:28:460
288319932,0cyclictest2952-21cut23:18:470
288319932,0cyclictest2587-21cat23:53:470
288319932,0cyclictest19658-21awk21:53:460
288319930,0cyclictest31658-21perl00:13:450
288319930,0cyclictest22077-21munin-node20:53:450
288319930,0cyclictest0-21swapper/000:18:490
169930,0watchdog/10-21swapper/122:33:581
169930,0watchdog/10-21swapper/121:53:421
169930,0watchdog/10-21swapper/119:43:491
169930,0watchdog/10-21swapper/119:38:451
329920,0watchdog/30-21swapper/320:48:333
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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