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2026-05-13 - 09:22
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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
Characteristics of the 100 highest latencies:
System rack1slot1.osadl.org (updated Wed May 13, 2026 00:45:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
43492204164,27sleep30-21swapper/319:09:533
43482199161,25sleep20-21swapper/219:09:532
42232199160,26sleep10-21swapper/119:08:141
40092199135,21sleep00-21swapper/019:05:270
288032650,0sleep10-21swapper/122:33:001
191932130,0sleep10-21swapper/121:35:351
4431991210,1cyclictest9-21ksoftirqd/021:15:000
444099116,4cyclictest12591-21sh21:28:352
444199101,6cyclictest35-21ksoftirqd/322:15:183
4440991010,0cyclictest28-21ksoftirqd/223:10:162
444099101,8cyclictest6803-21munin-node22:44:362
443199108,1cyclictest9-21ksoftirqd/021:45:000
443199100,7cyclictest27499-21python22:30:190
443199100,5cyclictest12332-21apt-get22:55:130
44419993,5cyclictest6803-21munin-node00:34:443
44419990,5cyclictest10048-21/usr/sbin/munin22:50:203
44409999,0cyclictest0-21swapper/223:34:322
44409999,0cyclictest0-21swapper/200:27:492
44409997,1cyclictest28-21ksoftirqd/219:20:002
44409993,3cyclictest240-21systemd-journal19:40:012
44409993,3cyclictest240-21systemd-journal19:40:002
44409990,1cyclictest7358-21/usr/sbin/munin22:05:112
44349990,8cyclictest0-21swapper/123:35:331
44349990,8cyclictest0-21swapper/123:21:121
44349990,8cyclictest0-21swapper/123:05:081
44349990,8cyclictest0-21swapper/122:46:361
44349990,8cyclictest0-21swapper/121:55:101
44349990,8cyclictest0-21swapper/121:25:521
44349990,8cyclictest0-21swapper/100:30:491
44319998,1cyclictest9-21ksoftirqd/021:58:250
44319997,1cyclictest9-21ksoftirqd/021:09:590
44319997,1cyclictest9-21ksoftirqd/020:09:590
44319997,1cyclictest9-21ksoftirqd/019:19:370
44319992,6cyclictest27413-21perf21:05:000
44319991,5cyclictest14812-21apt-get22:15:100
44319991,4cyclictest12228-21sed19:25:000
44319990,5cyclictest17963-21perf20:45:010
44319990,5cyclictest0-21swapper/000:05:120
44319990,1cyclictest240-21systemd-journal20:30:000
31604290,0sleep30-21swapper/321:53:573
44419987,1cyclictest35-21ksoftirqd/320:59:593
44419986,1cyclictest23530-21snmpd19:20:413
44419980,6cyclictest23530-21snmpd19:40:093
44409987,1cyclictest28-21ksoftirqd/221:30:262
44409986,1cyclictest61650irq/122-eno123:30:002
44409986,1cyclictest61650irq/122-eno123:24:592
44409986,1cyclictest61650irq/122-eno121:12:302
44409986,1cyclictest61650irq/122-eno119:15:002
44409986,1cyclictest61650irq/122-eno100:20:122
44409980,2cyclictest0-21swapper/221:20:092
44409980,2cyclictest0-21swapper/219:20:122
44349980,8cyclictest0-21swapper/123:41:121
44349980,8cyclictest0-21swapper/123:12:071
44349980,8cyclictest0-21swapper/122:27:491
44349980,8cyclictest0-21swapper/122:14:311
44349980,8cyclictest0-21swapper/121:46:361
44349980,8cyclictest0-21swapper/121:31:591
44349980,8cyclictest0-21swapper/121:21:021
44349980,8cyclictest0-21swapper/100:35:441
44349980,8cyclictest0-21swapper/100:01:071
44349980,0cyclictest0-21swapper/122:35:421
44319987,1cyclictest9-21ksoftirqd/000:33:100
44319987,1cyclictest1747-21ntpd20:00:200
44319986,1cyclictest32426-21ssh22:37:410
44319986,1cyclictest32410-21ssh23:20:170
44319986,1cyclictest23530-21snmpd20:30:140
44319983,5cyclictest23530-21snmpd00:25:200
44319980,6cyclictest29715-21diskmemload21:15:200
44319980,4cyclictest14981-21latency_hist00:25:000
44319980,3cyclictest29715-21diskmemload23:40:180
44319980,3cyclictest240-21systemd-journal00:05:000
44319980,1cyclictest27597-21ssh21:48:100
1995280,1sleep20-21swapper/221:15:162
44419976,1cyclictest35-21ksoftirqd/322:30:183
44419976,1cyclictest35-21ksoftirqd/320:55:003
44419975,1cyclictest35-21ksoftirqd/322:20:283
44419975,1cyclictest23530-21snmpd23:35:223
44419975,1cyclictest23530-21snmpd22:10:143
44419975,1cyclictest23530-21snmpd21:14:083
44419975,1cyclictest23530-21snmpd21:08:363
44419975,1cyclictest23530-21snmpd19:55:483
44419975,1cyclictest23530-21snmpd19:37:203
44419975,1cyclictest23530-21snmpd19:37:203
44419974,1cyclictest29715-21diskmemload23:41:483
44419973,4cyclictest11650-21kworker/u8:100:21:543
44419973,1cyclictest24377-21ssh22:26:063
44419971,3cyclictest0-21swapper/300:05:163
44419970,6cyclictest2752-21/usr/sbin/munin21:15:203
44419970,6cyclictest1730-21df_inode20:10:143
44419970,6cyclictest13034-21ssh21:29:463
44419970,5cyclictest30577-21/usr/sbin/munin00:00:223
44419970,4cyclictest0-21swapper/323:55:193
44419970,2cyclictest0-21swapper/322:47:033
44409976,1cyclictest61650irq/122-eno123:40:332
44409976,1cyclictest61650irq/122-eno123:35:112
44409976,1cyclictest61650irq/122-eno123:00:132
44409976,1cyclictest61650irq/122-eno122:28:122
44409976,1cyclictest61650irq/122-eno122:12:462
44409976,1cyclictest61650irq/122-eno121:41:362
44409976,1cyclictest23530-21snmpd00:15:142
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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