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2025-08-30 - 01:13
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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 Fri Aug 29, 2025 12:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
177023824,0sleep00-21swapper/006:24:210
175723826,0sleep20-21swapper/206:24:112
154723826,0sleep10-21swapper/106:21:461
170323727,0sleep30-21swapper/306:23:363
329970,0watchdog/316786-21ssh09:22:063
29925070,0irq/32-eth0-rx-13970-21ksmtuned08:42:093
29925070,0irq/32-eth0-rx-0-21swapper/311:50:213
29925070,0irq/32-eth0-rx-0-21swapper/310:04:533
29925070,0irq/32-eth0-rx-0-21swapper/309:46:573
29925070,0irq/32-eth0-rx-0-21swapper/309:44:323
29925070,0irq/32-eth0-rx-0-21swapper/309:13:403
29925070,0irq/32-eth0-rx-0-21swapper/309:02:453
29925070,0irq/32-eth0-rx-0-21swapper/308:45:223
29925070,0irq/32-eth0-rx-0-21swapper/308:35:343
29925070,0irq/32-eth0-rx-0-21swapper/308:31:243
18969976,0cyclictest26325-21ssh10:05:261
35160,0ktimersoftd/30-21swapper/307:15:163
339960,0migration/331272-21irqcore10:30:193
339960,0migration/320923-21munin-node07:45:173
329960,0watchdog/30-21swapper/311:41:133
329960,0watchdog/30-21swapper/307:30:263
29925060,0irq/32-eth0-rx-20092-21cut11:20:203
29925060,0irq/32-eth0-rx-0-21swapper/311:35:213
29925060,0irq/32-eth0-rx-0-21swapper/311:33:003
29925060,0irq/32-eth0-rx-0-21swapper/311:25:213
29925060,0irq/32-eth0-rx-0-21swapper/311:17:453
29925060,0irq/32-eth0-rx-0-21swapper/311:11:033
29925060,0irq/32-eth0-rx-0-21swapper/311:05:343
29925060,0irq/32-eth0-rx-0-21swapper/311:00:503
29925060,0irq/32-eth0-rx-0-21swapper/310:57:133
29925060,0irq/32-eth0-rx-0-21swapper/310:49:383
29925060,0irq/32-eth0-rx-0-21swapper/310:43:503
29925060,0irq/32-eth0-rx-0-21swapper/310:36:453
29925060,0irq/32-eth0-rx-0-21swapper/310:29:093
29925060,0irq/32-eth0-rx-0-21swapper/310:23:093
29925060,0irq/32-eth0-rx-0-21swapper/310:16:543
29925060,0irq/32-eth0-rx-0-21swapper/309:58:103
29925060,0irq/32-eth0-rx-0-21swapper/309:50:153
29925060,0irq/32-eth0-rx-0-21swapper/309:29:213
29925060,0irq/32-eth0-rx-0-21swapper/309:09:463
29925060,0irq/32-eth0-rx-0-21swapper/308:50:313
29925060,0irq/32-eth0-rx-0-21swapper/308:27:313
29925060,0irq/32-eth0-rx-0-21swapper/306:53:473
29925060,0irq/32-eth0-rx-0-21swapper/306:47:003
19049964,0cyclictest7521-21sh11:10:432
19049964,0cyclictest32630-21irqcore08:15:222
19049964,0cyclictest25280-21tune2fs11:05:162
19049964,0cyclictest24191-21munin-node09:25:212
19049964,0cyclictest22769-21gltestperf08:30:182
19049964,0cyclictest1930-21munin-run09:35:012
19049963,0cyclictest9552-21sed07:15:012
19049963,0cyclictest9329-21port_sshpriv09:55:232
19049963,0cyclictest8011-21ssh09:15:572
19049963,0cyclictest7010-21perl10:35:212
19049963,0cyclictest6307-21df_inode06:50:182
19049963,0cyclictest4719-21sh10:15:152
19049963,0cyclictest32225-21munin-node06:45:192
19049963,0cyclictest29068-21cut08:10:212
19049963,0cyclictest26596-21latency_hist11:25:012
19049963,0cyclictest23434-21fschecks_count10:45:202
19049963,0cyclictest23091-21kthreadcore07:00:202
19049963,0cyclictest2264-21cut09:35:152
19049963,0cyclictest20826-21munin-node11:40:212
19049963,0cyclictest18911-21munin-node09:45:232
19049963,0cyclictest16022-21munin-node11:00:232
19049963,0cyclictest1489-21sensors07:50:272
19049963,0cyclictest14816-21irqstats07:40:192
19049963,0cyclictest14725-21if_eth108:25:182
19049963,0cyclictest14639-21python09:00:272
19049963,0cyclictest12378-21cut11:15:192
19049963,0cyclictest12359-21perl10:00:162
19049963,0cyclictest11649-21ssh11:34:392
19049963,0cyclictest10770-21munin-node09:40:222
19049963,0cyclictest0-21swapper/210:40:282
19049962,0cyclictest0-21swapper/211:46:222
19049960,0cyclictest0-21swapper/209:21:032
19049960,0cyclictest0-21swapper/208:50:282
18969966,0cyclictest13332-21diskmemload11:38:361
149960,0migration/025732-21sh11:22:460
149960,0migration/014635-21munin-node06:55:210
149960,0migration/014232-21idleruntime-cro10:40:010
149960,0migration/011880-21ntp_offset06:50:250
339950,0migration/325540-21kthreadcore06:40:213
339950,0migration/319630-21kthreadcore08:05:213
339950,0migration/317542-21fschecks_time06:35:163
329950,0watchdog/30-21swapper/308:55:543
329950,0watchdog/30-21swapper/308:16:543
329950,0watchdog/30-21swapper/308:11:303
329950,0watchdog/30-21swapper/308:04:383
329950,0watchdog/30-21swapper/307:55:583
329950,0watchdog/30-21swapper/307:50:103
329950,0watchdog/30-21swapper/307:35:103
329950,0watchdog/30-21swapper/307:20:383
329950,0watchdog/30-21swapper/307:07:383
329950,0watchdog/30-21swapper/306:57:503
329950,0watchdog/30-21swapper/306:31:583
329950,0watchdog/30-21swapper/306:29:343
29935050,0irq/33-eth0-tx-6373-21munin-node08:20:160
29935050,0irq/33-eth0-tx-17030-21munin-node08:05:370
29935050,0irq/33-eth0-tx-13282-21munin-node07:40:250
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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