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2024-03-03 - 23:16
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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 100 highest latencies:
System rack1slot2.osadl.org (updated Sun Mar 03, 2024 12:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1047624435,0sleep10-21swapper/106:55:121
377824232,0sleep30-21swapper/306:52:583
1035623827,0sleep00-21swapper/006:53:470
1042223526,0sleep20-21swapper/206:54:372
8315060,0irq/26-0000:00:22484-21entropy08:13:182
4160,0ktimersoftd/022166-21diskmemload09:44:310
339960,0migration/37675-21sh11:21:163
339960,0migration/328650-21sh12:09:223
29925060,0irq/32-eth0-rx-14126-21kthreadcore11:23:263
29925060,0irq/32-eth0-rx-0-21swapper/311:12:243
149960,0migration/07190-21kthreadcore10:03:210
149960,0migration/05183-21sh09:03:580
149960,0migration/026056-21kthreadcore09:18:250
149960,0migration/010074-21aten2.4-expect09:48:180
149960,0migration/010025-21sh11:41:400
107809960,0cyclictest0-21swapper/110:03:131
339950,0migration/38596-21kthreadcore12:18:223
339950,0migration/37548-21kthreadcore10:23:233
339950,0migration/37338-21kthreadcore07:38:213
339950,0migration/34159-21kthreadcore08:43:243
339950,0migration/332610-21taskset09:23:173
339950,0migration/332536-21kthreadcore12:13:223
339950,0migration/330197-21fschecks_time10:38:173
339950,0migration/329707-21latency11:13:203
339950,0migration/321036-21hwlatdetect10:13:213
339950,0migration/320281-21rt-features10:48:253
339950,0migration/320218-21kthreadcore07:03:213
339950,0migration/320170-21kthreadcore12:23:253
339950,0migration/318585-21kthreadcore10:28:233
339950,0migration/318585-21kthreadcore10:28:233
339950,0migration/313125-21munin-node11:03:223
339950,0migration/312361-21fschecks_time10:08:173
339950,0migration/311699-21cpuspeed_turbos08:28:133
329950,0watchdog/3961-21perl07:13:183
329950,0watchdog/327830-21cut07:08:183
329950,0watchdog/323644-21ssh09:18:023
329950,0watchdog/30-21swapper/308:48:223
29935050,0irq/33-eth0-tx-6386-21runrttasks11:00:392
29935050,0irq/33-eth0-tx-5401-21hwlatdetect11:58:192
29935050,0irq/33-eth0-tx-25387-21aten_r1power_en09:38:182
29935050,0irq/33-eth0-tx-2261-21pmu-power10:18:282
29935050,0irq/33-eth0-tx-18432-21munin-node07:48:230
29935050,0irq/33-eth0-tx-12798-21munin-node10:28:272
29935050,0irq/33-eth0-tx-12798-21munin-node10:28:272
29935050,0irq/33-eth0-tx-11002-21munin-node06:58:260
29935050,0irq/33-eth0-tx-0-21swapper/212:10:492
29935050,0irq/33-eth0-tx-0-21swapper/211:34:302
29935050,0irq/33-eth0-tx-0-21swapper/209:25:112
29935050,0irq/33-eth0-tx-0-21swapper/008:58:120
29935050,0irq/33-eth0-tx-0-21swapper/008:53:340
29935050,0irq/33-eth0-tx-0-21swapper/008:30:080
29935050,0irq/33-eth0-tx-0-21swapper/008:20:060
29925050,0irq/32-eth0-rx-4732-21cat11:38:193
29925050,0irq/32-eth0-rx-29944-21ssh10:18:233
29925050,0irq/32-eth0-rx-28536-21diskstats11:53:133
29925050,0irq/32-eth0-rx-27233-21kthreadcore10:53:263
29925050,0irq/32-eth0-rx-27053-21if_eth1.311:33:163
29925050,0irq/32-eth0-rx-24510-21cut11:48:223
29925050,0irq/32-eth0-rx-18831-21ssh09:13:273
29925050,0irq/32-eth0-rx-1585-21cpu09:43:163
29925050,0irq/32-eth0-rx-15766-21cat12:03:203
29925050,0irq/32-eth0-rx-11343-21kthreadcore09:08:263
29925050,0irq/32-eth0-rx-10949-21cut09:28:193
29925050,0irq/32-eth0-rx-0-21swapper/311:59:073
29925050,0irq/32-eth0-rx-0-21swapper/311:30:023
29925050,0irq/32-eth0-rx-0-21swapper/309:58:193
29925050,0irq/32-eth0-rx-0-21swapper/309:47:553
29925050,0irq/32-eth0-rx-0-21swapper/309:38:203
29925050,0irq/32-eth0-rx-0-21swapper/309:34:593
29925050,0irq/32-eth0-rx-0-21swapper/308:17:523
27150,0ktimersoftd/20-21swapper/209:56:072
259950,0migration/226336-21sh11:48:532
259950,0migration/224551-21fschecks_time11:13:142
259950,0migration/22397-21runrttasks10:02:052
259950,0migration/222095-21sh09:13:512
249950,0watchdog/215882-21idleruntime08:08:182
249950,0watchdog/215673-21hwlatdetect07:23:142
249950,0watchdog/20-21swapper/209:08:222
179950,0migration/19029-21df_abs11:23:201
179950,0migration/14529-21fschecks_count07:38:171
179950,0migration/124836-21kthreadcore10:33:211
179950,0migration/12428-21idleruntime09:43:201
179950,0migration/117422-21fschecks_time09:33:151
179950,0migration/113963-21unixbench_multi07:18:281
179950,0migration/113520-21kthreadcore07:43:271
179950,0migration/110414-21munin-node10:23:241
169950,0watchdog/13927-21kthreadcore09:03:221
169950,0watchdog/131718-21swap09:38:341
169950,0watchdog/12903-21cut09:23:221
169950,0watchdog/10-21swapper/107:23:141
149950,0migration/09394-21kthreadcore08:23:200
149950,0migration/0681-21aten_r1power_po08:43:160
149950,0migration/04338-21sh11:58:040
149950,0migration/0430-21taskset11:34:240
149950,0migration/03919-21taskset10:22:250
149950,0migration/031652-21sendmail_mailst09:38:310
149950,0migration/030839-21kthreadcore11:53:180
149950,0migration/028591-21kthreadcore07:53:200
149950,0migration/027835-21kthreadcore11:13:190
149950,0migration/023389-21sh10:53:220
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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