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2026-08-23 - 17:40
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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 Sun Aug 23, 2026 12:45:13)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
111312233158,24sleep20-21swapper/207:05:052
129562204144,48sleep30-21swapper/307:06:153
131672200155,31sleep00-21swapper/007:09:010
129472199162,24sleep10-21swapper/107:06:091
54212730,2sleep11331899cyclictest09:50:221
300382610,0sleep20-21swapper/211:12:402
86492600,0sleep30-21swapper/311:28:443
1331999150,14cyclictest19195-21apt-get12:30:132
13317991514,1cyclictest9-21ksoftirqd/008:45:000
1331999140,14cyclictest0-21swapper/208:00:002
1331999140,13cyclictest7170-21apt-get09:55:122
1331999140,13cyclictest6999-21diskmemload10:25:132
1331999140,13cyclictest6999-21diskmemload09:20:202
1331999140,13cyclictest5168-21aten_r1power_en12:10:112
1331999140,13cyclictest10031-21apt-get10:45:102
1331999140,13cyclictest0-21swapper/212:35:282
1331999130,13cyclictest0-21swapper/211:35:232
1331999130,12cyclictest30857-21awk09:40:202
1331999130,12cyclictest27742-21perl11:55:142
1331999130,12cyclictest2722-21fschecks_count11:20:142
1331999130,12cyclictest20475-21df08:30:152
1331999130,12cyclictest14899-21diskstats10:05:142
1331999130,12cyclictest0-21swapper/209:25:132
1331999130,12cyclictest0-21swapper/207:25:002
1331899130,12cyclictest0-21swapper/110:05:161
1331999121,10cyclictest31562-21hwlatdetect07:45:172
1331999121,10cyclictest13176-21/usr/sbin/munin08:15:152
1331999121,10cyclictest0-21swapper/207:35:162
1331999120,11cyclictest6999-21diskmemload10:35:152
1331999120,11cyclictest0-21swapper/212:20:162
1331999120,11cyclictest0-21swapper/211:43:422
1331999120,11cyclictest0-21swapper/210:51:062
1331999120,11cyclictest0-21swapper/210:30:152
1331999120,11cyclictest0-21swapper/209:39:162
1331999120,11cyclictest0-21swapper/208:55:162
1331999120,10cyclictest0-21swapper/209:15:152
1332799110,11cyclictest0-21swapper/312:03:453
1331999119,1cyclictest28-21ksoftirqd/208:10:002
1331999111,9cyclictest17489-21cstates10:55:142
1331999110,11cyclictest0-21swapper/212:15:182
1331999110,11cyclictest0-21swapper/211:52:052
1331999110,11cyclictest0-21swapper/211:46:592
1331999110,11cyclictest0-21swapper/211:30:132
1331999110,11cyclictest0-21swapper/211:19:392
1331999110,11cyclictest0-21swapper/211:01:332
1331999110,11cyclictest0-21swapper/210:10:132
1331999110,11cyclictest0-21swapper/209:34:432
1331999110,11cyclictest0-21swapper/207:15:162
1331999110,10cyclictest22455-21apt-config08:35:002
1331999110,10cyclictest0-21swapper/210:41:432
1331999110,10cyclictest0-21swapper/210:24:382
1331999110,10cyclictest0-21swapper/210:00:342
1331999110,10cyclictest0-21swapper/209:45:472
1331799113,4cyclictest30787-21wc11:15:000
13317991110,1cyclictest9-21ksoftirqd/009:40:000
1332799109,1cyclictest35-21ksoftirqd/308:25:003
1331999101,8cyclictest6999-21diskmemload11:25:122
1331999100,9cyclictest30570-21/usr/sbin/munin12:00:162
1331999100,9cyclictest0-21swapper/212:26:312
1331999100,9cyclictest0-21swapper/212:08:462
1331999100,9cyclictest0-21swapper/211:05:172
1331999100,9cyclictest0-21swapper/209:51:572
1331999100,9cyclictest0-21swapper/209:12:572
1331799103,6cyclictest18949-21perf12:30:000
1331799100,5cyclictest1982-21sendmail-mta12:18:270
133279999,0cyclictest35-21ksoftirqd/310:29:433
133279992,3cyclictest0-21swapper/309:55:163
133279991,6cyclictest6999-21diskmemload11:09:113
133279990,7cyclictest9234-21proc_pri08:05:203
133199990,8cyclictest21366-21/usr/sbin/munin10:15:162
133179995,4cyclictest9-21ksoftirqd/012:35:180
133179991,4cyclictest6224-21munin-plugin-st10:39:590
133279988,0cyclictest35-21ksoftirqd/311:02:133
133279986,1cyclictest11301-21snmpd09:48:243
133279981,5cyclictest6999-21diskmemload10:55:303
133279981,4cyclictest0-21swapper/311:30:133
133279980,5cyclictest0-21swapper/310:40:123
133279980,2cyclictest0-21swapper/312:35:113
133279980,0cyclictest0-21swapper/309:51:593
133199986,2cyclictest61650irq/122-eno108:45:012
133199981,1cyclictest0-21swapper/208:01:062
133199980,8cyclictest21308-21/usr/sbin/munin07:25:192
133199980,7cyclictest5577-21fschecks_time09:05:152
133199980,7cyclictest0-21swapper/208:50:122
133199980,5cyclictest240-21systemd-journal07:30:012
133189980,4cyclictest0-21swapper/111:35:071
133189980,4cyclictest0-21swapper/111:05:111
133179987,1cyclictest5834-21ssh11:25:120
133179987,1cyclictest1-21systemd11:35:120
133179986,1cyclictest9-21ksoftirqd/012:30:130
133179986,1cyclictest9-21ksoftirqd/008:35:010
133179986,1cyclictest11301-21snmpd09:03:470
133179986,1cyclictest10147-21ssh09:14:090
133179984,2cyclictest240-21systemd-journal12:15:000
133179981,6cyclictest23711-21telnet11:50:120
133179981,5cyclictest15423-21latency_hist12:25:010
133179980,7cyclictest22480-21ssh11:00:500
133179980,7cyclictest11173-21unixbench-2d11:30:200
133179980,4cyclictest20318-21latency_hist11:00:000
29161270,0sleep30-21swapper/311:56:293
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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