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2026-07-18 - 03:53
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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 rack1slot8.osadl.org (updated Sat Jul 18, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
30742944920,16sleep00-21swapper/019:06:040
30492186166,13sleep10-21swapper/119:05:531
3504998219,57cyclictest88850irq/46-eth0-tx-22:29:140
48242740,4sleep04828-21unixbench_multi22:40:260
350499744,55cyclictest0-21swapper/000:12:160
3504997420,49cyclictest88850irq/46-eth0-tx-22:07:240
3504997321,46cyclictest88850irq/46-eth0-tx-00:24:440
350499732,56cyclictest8893-21latency_hist19:25:010
350499723,59cyclictest13869-21munin-node23:50:210
3504997220,38cyclictest88850irq/46-eth0-tx-23:47:580
350499722,8cyclictest88850irq/46-eth0-tx-23:39:190
3504997219,47cyclictest88850irq/46-eth0-tx-23:20:010
3504997217,49cyclictest88850irq/46-eth0-tx-23:04:340
350499719,56cyclictest30481-21awk00:18:470
350499713,39cyclictest25820-21yum23:15:280
350499712,8cyclictest14510-21munin-run21:10:010
350499712,63cyclictest20674-21ssh23:07:490
350499712,63cyclictest14302-21latency_hist19:40:010
350499712,6cyclictest88850irq/46-eth0-tx-22:11:240
3504997118,47cyclictest88850irq/46-eth0-tx-23:40:220
3504997118,47cyclictest88850irq/46-eth0-tx-22:30:170
3504997115,51cyclictest88850irq/46-eth0-tx-23:29:570
3504997114,42cyclictest88850irq/46-eth0-tx-22:58:410
3504997113,52cyclictest88850irq/46-eth0-tx-21:45:570
350499705,59cyclictest0-21swapper/021:19:530
350499703,61cyclictest1647-21wc23:30:160
350499702,62cyclictest8858-21latency_hist21:55:010
3504997019,45cyclictest88850irq/46-eth0-tx-23:12:440
3504997014,50cyclictest88850irq/46-eth0-tx-22:35:080
350599692,61cyclictest14507-21munin-node19:40:111
350599692,60cyclictest5421-21chrt22:41:521
350499697,49cyclictest88850irq/46-eth0-tx-22:19:530
350499695,58cyclictest16173-21aten_r1power_cu23:55:100
350499695,39cyclictest23336-21idleruntime-cro20:05:000
3504996933,30cyclictest88850irq/46-eth0-tx-21:25:160
350499693,40cyclictest10541-21ssh00:40:000
3504996922,40cyclictest88850irq/46-eth0-tx-21:20:110
350499692,61cyclictest25298-21munin-node20:10:170
3504996915,48cyclictest88850irq/46-eth0-tx-22:01:410
3504996915,48cyclictest88850irq/46-eth0-tx-00:27:270
3504996913,50cyclictest88850irq/46-eth0-tx-22:51:230
3504996912,52cyclictest88850irq/46-eth0-tx-22:24:370
3504996912,52cyclictest88850irq/46-eth0-tx-00:02:180
350599683,59cyclictest25622-21ssh22:21:281
350599682,60cyclictest13539-21munin-node19:35:221
350499687,55cyclictest0-21swapper/021:10:130
350499683,58cyclictest6676-21munin-node22:45:110
350499682,7cyclictest30543-21latency_hist20:25:010
3504996816,47cyclictest88850irq/46-eth0-tx-21:55:490
3504996810,52cyclictest88850irq/46-eth0-tx-21:40:560
350599673,58cyclictest14542-21latency_hist21:10:011
3505996713,48cyclictest28835-21ssh22:27:091
350499678,53cyclictest88850irq/46-eth0-tx-00:09:210
350499672,7cyclictest7271-21latency_hist20:50:020
350499672,7cyclictest3946-21tail20:40:130
350499672,6cyclictest27133-21munin-node20:15:130
350599662,58cyclictest1905-21latency_hist20:35:011
350499665,37cyclictest3672-21munin-run20:40:010
350499664,57cyclictest0-21swapper/021:36:170
350499664,56cyclictest0-21swapper/000:32:120
350499663,43cyclictest21518-21munin-run20:00:000
350499662,58cyclictest23716-21cpuspeed20:05:130
350599652,56cyclictest28144-21sh21:31:511
350599652,56cyclictest26081-21sh21:29:341
350599652,56cyclictest13604-21ssh22:01:201
350599652,54cyclictest28333-21ssh23:20:221
350499659,33cyclictest10874-21aten_r1power_cu19:30:120
350499652,56cyclictest27211-21ntpq21:30:230
350499652,42cyclictest32497-21munin-node20:30:210
350599642,56cyclictest2582-21sh21:44:101
350599642,56cyclictest17550-21ssh23:02:241
350599642,56cyclictest10831-21sh21:57:011
350599642,55cyclictest19568-21munin-node23:05:241
350599642,55cyclictest18526-21if_err_eth022:10:161
350599642,54cyclictest17595-21aten_r1power_po21:15:131
350499642,56cyclictest6188-21ntp_states19:15:240
350599635,51cyclictest0-21swapper/121:50:211
350599634,53cyclictest0-21swapper/100:32:121
350599634,52cyclictest0-21swapper/121:45:021
350599633,53cyclictest5693-21munin-node19:15:161
350599632,55cyclictest9220-21ssh22:49:161
350599632,55cyclictest8311-21sh00:35:181
350599632,55cyclictest31346-21df_abs00:20:141
350599632,54cyclictest88750irq/45-eth0-rx-00:10:251
350599632,41cyclictest22316-21munin-node00:05:131
350499636,50cyclictest0-21swapper/019:15:010
350499633,53cyclictest7427-21munin-node20:50:190
350499632,7cyclictest31664-21timerandwakeup20:25:250
350499632,7cyclictest31664-21timerandwakeup20:25:250
350499632,7cyclictest17906-21latency_hist19:50:010
350599625,52cyclictest0-21swapper/121:37:361
350599625,50cyclictest0-21swapper/120:05:171
350599624,52cyclictest0-21swapper/123:55:491
350599624,52cyclictest0-21swapper/122:15:551
350599623,47cyclictest13335-21munin-node22:55:221
350599622,54cyclictest6105-21sh23:37:231
350599622,54cyclictest13274-21ssh23:50:131
350599622,53cyclictest88750irq/45-eth0-rx-00:25:121
350599622,53cyclictest6507-21munin-node20:45:241
350599622,53cyclictest26683-21sh23:18:001
350599622,53cyclictest2479-21rm23:30:281
350599622,53cyclictest19230-21uptime19:50:261
3504996219,37cyclictest18070-21munin-node19:50:280
350599615,50cyclictest0-21swapper/123:42:131
350599613,51cyclictest20516-21munin-node21:20:111
350599612,53cyclictest30921-21ls00:20:011
350599612,53cyclictest21965-21munin-run00:05:001
350599612,53cyclictest17313-21munin-run21:15:011
350599612,53cyclictest11338-21munin-node23:45:251
350599612,52cyclictest88750irq/45-eth0-rx-20:25:131
350599612,52cyclictest88750irq/45-eth0-rx-20:25:131
350599612,52cyclictest21737-21munin-node20:00:111
350599605,49cyclictest0-21swapper/123:13:421
350599603,51cyclictest5292-21munin-run19:15:011
350599602,53cyclictest7440-21cpu19:20:131
350599602,51cyclictest10393-21munin-node20:55:271
350599602,49cyclictest15387-21munin-node22:05:141
350599601,53cyclictest901-21sh22:35:141
350499607,47cyclictest0-21swapper/020:55:150
350499603,51cyclictest12659-21munin-node19:35:230
350599595,49cyclictest0-21swapper/120:50:181
350599592,51cyclictest16980-21munin-node19:45:211
350599592,51cyclictest10576-21sendmail_mailqu22:50:241
350599592,51cyclictest10142-21unixbench_multi19:25:241
350599592,50cyclictest30501-21munin-node22:30:161
350599592,50cyclictest20634-21munin-node19:55:231
350599592,49cyclictest32096-21runrttasks23:26:221
350499592,8cyclictest11032-21munin-node21:00:240
350499592,6cyclictest10663-21runrttasks19:29:420
350599582,50cyclictest26072-21munin-node20:10:211
350599582,50cyclictest12410-21runrttasks21:02:131
350599573,48cyclictest11098-21munin-node19:30:141
350599572,49cyclictest4201-21munin-node20:40:161
350599572,49cyclictest29776-21munin-node20:20:231
350599572,48cyclictest27331-21cpuspeed20:15:141
350599562,48cyclictest2981-21ls20:35:251
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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