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2025-06-19 - 08:01
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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 rack8slot4.osadl.org (updated Thu Jun 19, 2025 00:44:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
11890752231171,19sleep40-21swapper/419:09:054
11889532222165,18sleep60-21swapper/619:07:226
11890362219166,17sleep30-21swapper/319:08:323
11891282218186,20sleep00-21swapper/019:09:490
11890762218184,22sleep50-21swapper/519:09:065
11869182214184,19sleep10-21swapper/119:05:561
11889312209181,18sleep20-21swapper/219:07:022
11868772207178,18sleep70-21swapper/719:05:227
118935799360,29cyclictest1202534-21systemd-journal23:30:015
1189357993325,1cyclictest1238898-21sh20:40:005
118935799330,28cyclictest1331779-21apt-get23:31:265
1189362993228,3cyclictest1293032-21cron22:20:017
1189357993229,2cyclictest69-21ksoftirqd/522:40:015
118935799320,28cyclictest1361739-21apt-get00:26:225
118934799320,30cyclictest1369289-21turbostat.cron00:40:002
118936299310,29cyclictest1347457-21sh00:00:007
1189361993127,3cyclictest1311882-21sh22:55:016
1189354993127,3cyclictest1293030-21sh22:20:014
118934299310,29cyclictest1217353-21sh20:00:001
118933899310,29cyclictest0-21swapper/000:00:000
1189362993027,2cyclictest0-21swapper/723:45:007
118936299300,29cyclictest0-21swapper/721:45:017
118936199300,29cyclictest1339395-21sh23:45:006
118936199300,29cyclictest1320227-21turbostat.cron23:10:016
1189354993028,1cyclictest0-21swapper/420:35:004
1189354993027,2cyclictest1233525-21turbostat.cron20:30:004
118935499300,29cyclictest1314837-21dump-pmu-power23:00:014
118935499300,28cyclictest1255587-21apt-get21:11:234
118935199300,29cyclictest1223259-21apt-get20:11:223
118934799300,29cyclictest1260447-21sh21:20:012
1189338993028,1cyclictest1234032-21apt-get20:31:210
118933899300,29cyclictest1328317-21apt23:25:010
1189362992927,1cyclictest1228140-21munin-run20:20:007
118936299290,28cyclictest0-21swapper/723:51:247
118936299290,28cyclictest0-21swapper/722:01:227
118936299290,1cyclictest1314835-21cron23:00:017
118936299290,1cyclictest1189741-21apt-get19:11:247
118936199290,28cyclictest1274447-21apt-get21:46:236
118936199290,28cyclictest0-21swapper/620:50:006
118936199290,28cyclictest0-21swapper/600:31:236
118935799290,28cyclictest0-21swapper/522:16:235
118935799290,28cyclictest0-21swapper/521:46:245
118935799290,28cyclictest0-21swapper/521:31:215
118935799290,28cyclictest0-21swapper/519:26:215
118935799290,28cyclictest0-21swapper/500:16:235
118935799290,1cyclictest0-21swapper/522:06:235
1189354992927,1cyclictest1358524-21dump-pmu-power00:20:004
118935499290,28cyclictest1318049-21apt-get23:06:204
118935499290,28cyclictest0-21swapper/423:56:234
118935499290,28cyclictest0-21swapper/419:11:244
1189351992927,1cyclictest0-21swapper/323:01:253
118935199290,28cyclictest1312657-21apt-get22:56:243
118935199290,28cyclictest1204149-21apt-get19:36:243
118935199290,28cyclictest0-21swapper/322:31:213
118935199290,28cyclictest0-21swapper/319:46:223
118935199290,1cyclictest1353390-21apt-get00:11:203
1189347992927,1cyclictest0-21swapper/200:35:002
118934799290,1cyclictest1288165-21apt-get22:11:222
1189342992928,1cyclictest0-21swapper/119:11:241
1189342992927,1cyclictest1250203-21apt-get21:01:241
1189342992927,1cyclictest0-21swapper/120:25:001
118934299290,28cyclictest1315368-21apt-get23:01:251
118934299290,28cyclictest0-21swapper/122:36:221
118933899290,28cyclictest0-21swapper/023:41:220
118933899290,28cyclictest0-21swapper/020:56:260
118933899290,28cyclictest0-21swapper/000:31:230
118933899290,1cyclictest1334519-21apt-get23:36:270
1189362992828,0cyclictest0-21swapper/720:55:007
1189362992827,1cyclictest0-21swapper/721:51:217
1189362992827,0cyclictest0-21swapper/719:31:257
1189362992826,1cyclictest1353390-21apt-get00:11:207
1189362992826,1cyclictest0-21swapper/721:10:017
118936299280,28cyclictest0-21swapper/723:11:267
118936199280,27cyclictest0-21swapper/622:26:236
118936199280,1cyclictest0-21swapper/623:26:256
118936199280,0cyclictest0-21swapper/623:51:236
1189357992826,1cyclictest0-21swapper/523:46:275
1189354992827,1cyclictest0-21swapper/422:01:224
1189354992825,2cyclictest1202534-21systemd-journal21:10:014
118935499280,27cyclictest0-21swapper/421:45:014
118935499280,27cyclictest0-21swapper/421:16:234
1189351992828,0cyclictest0-21swapper/322:21:233
1189351992828,0cyclictest0-21swapper/321:36:233
1189351992828,0cyclictest0-21swapper/321:36:233
1189351992828,0cyclictest0-21swapper/300:21:243
1189351992826,1cyclictest1301625-21apt-get22:36:223
1189351992826,1cyclictest0-21swapper/323:30:013
1189351992823,4cyclictest1230840-21dump-pmu-power20:25:003
1189347992828,0cyclictest0-21swapper/221:51:212
1189347992825,2cyclictest1342085-21idleruntime-cro23:50:002
118934799280,27cyclictest0-21swapper/220:31:212
118934799280,27cyclictest0-21swapper/219:16:232
1189342992827,0cyclictest0-21swapper/121:36:231
1189342992827,0cyclictest0-21swapper/121:36:231
1189342992826,1cyclictest0-21swapper/123:31:261
1189338992827,1cyclictest0-21swapper/022:26:230
1189338992827,0cyclictest0-21swapper/000:11:200
1189338992826,1cyclictest0-21swapper/022:31:210
118933899280,0cyclictest0-21swapper/021:31:210
1189362992727,0cyclictest0-21swapper/722:11:227
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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