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2026-06-24 - 16:54
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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 rackaslot8.osadl.org (updated Wed Jun 24, 2026 12:44:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
272032301280,13sleep20-21swapper/207:09:502
271902282252,20sleep10-21swapper/107:09:421
270902273243,19sleep00-21swapper/007:08:230
269272271241,20sleep30-21swapper/307:06:333
146172630,0sleep30-21swapper/309:46:303
37112620,0sleep30-21swapper/312:16:073
312102580,0sleep20-21swapper/208:25:202
278332570,0sleep20-21swapper/212:30:222
269342560,0sleep30-21swapper/310:52:573
228412560,0sleep00-21swapper/012:27:560
158212550,0sleep00-21swapper/009:47:270
251242540,0sleep10-21swapper/112:10:111
298282520,0sleep00-21swapper/011:53:160
320262210,0sleep20-21swapper/212:14:212
92682180,0sleep10-21swapper/108:50:141
8992180,0chrt0-21swapper/209:38:392
325392180,0sleep00-21swapper/011:35:150
313932170,0sleep20-21swapper/211:15:152
100662160,0sleep10-21swapper/107:40:161
2735399153,3cyclictest25589-21munin-run09:15:002
247722150,1sleep324774-21fschecks_time11:50:113
111802150,0sleep00-21swapper/010:43:380
108342140,0sleep30-21swapper/311:41:223
2735399133,3cyclictest14124-21smartctl10:45:132
2735399133,3cyclictest13931-21sed11:05:012
24162130,1sleep3341ksoftirqd/309:20:153
2735399123,6cyclictest28419-21sh10:15:052
2735399123,4cyclictest29785-21date10:55:002
2735399123,2cyclictest30458-21latency_hist11:15:022
2735399113,5cyclictest27549-21ssh11:32:172
2735399113,5cyclictest27549-21ssh11:32:172
2735399113,5cyclictest17430-21ssh11:06:252
2735399113,3cyclictest5889-21cat10:20:192
2735399112,6cyclictest24005-21ssh10:11:522
2735399112,3cyclictest15825-21perl09:05:142
61282100,0sleep10-21swapper/109:22:171
2735399105,4cyclictest8405-21idleruntime-cro08:50:012
2735399103,5cyclictest25056-21ssh09:33:542
2735399103,5cyclictest25056-21ssh09:33:542
2735399103,5cyclictest20713-21ssh12:26:182
2735399103,5cyclictest0-21swapper/209:48:112
2735399103,3cyclictest9886-21perl12:20:132
2735399103,3cyclictest9394-21sed08:50:152
2735399103,3cyclictest8871-21grep07:35:422
2735399103,3cyclictest8040-21ssh12:38:262
2735399103,3cyclictest5862-21ssh09:22:042
2735399103,3cyclictest5292-21cat10:40:122
2735399103,3cyclictest32378-21ssh11:35:142
2735399103,3cyclictest26640-21expr09:15:142
2735399103,3cyclictest19037-21sh12:05:472
2735399103,3cyclictest14116-21ssh10:05:362
2735399103,3cyclictest13393-21ssh09:26:172
2735399103,2cyclictest5232-21sh12:17:162
2735399103,2cyclictest3838-21if_enp4s009:40:132
2735399103,2cyclictest24804-21perl11:50:112
2735399102,5cyclictest3294-21ssh10:38:562
2735399102,5cyclictest2515-21ssh11:55:502
2735399102,5cyclictest24168-21ssh10:31:262
2735399102,5cyclictest22891-21runrttasks08:10:012
2735399102,5cyclictest22082-21ssh09:50:552
273539997,2cyclictest76-21kswapd012:00:122
273539996,2cyclictest29359-21munin-run08:25:002
273539995,3cyclictest20455-21latency_hist08:05:012
273539995,3cyclictest0-21swapper/207:25:112
273539994,4cyclictest15064-21sh09:05:002
273539993,2cyclictest27735-21sh09:55:072
273539992,5cyclictest8568-21ssh10:02:442
273539992,5cyclictest3738-21taskset08:37:562
273539992,5cyclictest17456-21ssh11:25:532
273539992,5cyclictest13730-21taskset07:49:372
273539992,5cyclictest12632-21ssh10:25:072
273539992,3cyclictest7686-21ssh11:40:092
273539992,3cyclictest18568-21sh11:45:562
273539992,3cyclictest14319-21cat07:50:122
273539992,3cyclictest12639-21sshd08:57:592
273539991,3cyclictest17291-21diskmemload11:20:122
273429998,1cyclictest12-21ksoftirqd/010:05:000
273429997,1cyclictest12-21ksoftirqd/007:20:010
7861280,1sleep37882-21ssh10:21:403
273539985,3cyclictest0-21swapper/208:30:102
273539985,2cyclictest31162-21ntp_states10:55:152
273539984,3cyclictest9958-21cat07:40:142
273539984,3cyclictest5336-21cstates07:30:122
273539984,3cyclictest5336-21cstates07:30:122
273539984,3cyclictest4983-21/usr/sbin/munin08:40:152
273539984,3cyclictest29844-21cat07:15:012
273539984,3cyclictest26162-21/usr/sbin/munin08:15:172
273539984,3cyclictest21451-21cat08:05:172
273539982,4cyclictest27509-21taskset07:10:092
273539982,2cyclictest16256-21dpkg07:55:102
273489981,1cyclictest141rcu_preempt09:25:011
273489980,7cyclictest30423-21ssh09:17:211
273429983,3cyclictest275-21systemd-journal08:25:120
273429980,5cyclictest0-21swapper/011:23:150
730270,0sleep00-21swapper/010:56:180
273579974,2cyclictest658-21snmpd11:30:113
273579974,2cyclictest658-21snmpd11:30:113
273579974,2cyclictest15068-21munin-plugin-st09:05:013
273579973,3cyclictest658-21snmpd11:08:403
273579973,3cyclictest658-21snmpd08:53:003
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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