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2025-11-20 - 19:14
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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 rack0slot4.osadl.org (updated Thu Nov 20, 2025 00:46:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
12317902395373,14sleep30-21swapper/319:09:279
12317012372364,5sleep60-21swapper/619:08:0912
12315232361314,14sleep70-21swapper/719:05:4513
12318032359314,16sleep150-21swapper/1519:09:397
12317202359321,12sleep80-21swapper/819:08:2714
12315872358314,14sleep110-21swapper/1119:06:383
12316862357312,15sleep90-21swapper/919:07:5615
12317432356337,12sleep140-21swapper/1419:08:496
12318062352311,15sleep10-21swapper/119:09:411
12315802344321,15sleep40-21swapper/419:06:3110
12315892342319,15sleep130-21swapper/1319:06:395
12315882341318,15sleep120-21swapper/1219:06:394
12315282340318,14sleep100-21swapper/1019:05:482
12318072339316,15sleep20-21swapper/219:09:428
12315212338315,15sleep50-21swapper/519:05:4211
12317702336314,14sleep00-21swapper/019:09:070
123221199304303,1cyclictest1255644-21nodev-device-ev20:05:181
123223799250249,1cyclictest0-21swapper/920:05:1815
1232257999796,1cyclictest0-21swapper/1521:30:177
1232213999291,1cyclictest0-21swapper/220:40:198
1232233999190,1cyclictest1418099-21nodev-device-ev23:15:1714
1232237999089,1cyclictest0-21swapper/921:35:1715
1232243998584,1cyclictest1362533-21nodev-device-ev22:10:153
1232221998483,1cyclictest0-21swapper/419:15:0010
1232207997776,1cyclictest0-21swapper/021:40:170
1232237997573,1cyclictest1422359-21nodev-device-ev23:20:1615
1232237997573,1cyclictest1422359-21nodev-device-ev23:20:1615
1232257996766,1cyclictest0-21swapper/1500:05:197
1232207996564,1cyclictest1396695-21nodev-device-ev22:50:170
1232247996160,1cyclictest1234121-21nodev-device-ev19:15:004
1232241995554,1cyclictest0-21swapper/1021:45:162
1232207995453,1cyclictest1281286-21nodev-device-ev20:35:180
1232257995251,1cyclictest1405243-21nodev-device-ev23:00:187
1232251994746,1cyclictest0-21swapper/1321:00:185
1232241994723,11cyclictest0-21swapper/1022:18:322
1232243994038,2cyclictest1469400-21nodev-device-ev00:15:183
1232257993837,1cyclictest0-21swapper/1521:10:197
1232243993635,1cyclictest0-21swapper/1123:40:143
123222799310,31cyclictest0-21swapper/622:05:1512
123224399300,27cyclictest0-21swapper/1123:32:073
123224399300,27cyclictest0-21swapper/1123:32:063
123223199300,1cyclictest0-21swapper/723:49:0413
123221399300,27cyclictest0-21swapper/219:40:248
123221199300,29cyclictest0-21swapper/100:35:161
1232227992926,3cyclictest2045-21snmpd22:33:5312
1232257992826,1cyclictest2045-21snmpd23:48:497
123225399280,27cyclictest0-21swapper/1422:44:516
123225399280,27cyclictest0-21swapper/1421:49:196
1232251992827,1cyclictest0-21swapper/1323:23:525
1232251992827,1cyclictest0-21swapper/1323:23:525
1232247992827,1cyclictest2045-21snmpd19:29:364
1232243992827,1cyclictest0-21swapper/1123:58:203
123224399280,27cyclictest0-21swapper/1122:43:303
1232241992827,1cyclictest1332594-21kworker/10:2+events22:40:262
1232241992827,1cyclictest0-21swapper/1020:48:022
123224199280,27cyclictest0-21swapper/1023:57:072
123224199280,27cyclictest0-21swapper/1023:18:252
1232237992827,1cyclictest2045-21snmpd21:56:1915
123223799280,27cyclictest0-21swapper/919:35:3015
1232231992826,2cyclictest2045-21snmpd00:10:4713
123223199280,27cyclictest0-21swapper/722:27:1613
123223199280,1cyclictest0-21swapper/700:16:5013
1232223992827,1cyclictest2045-21snmpd23:01:0311
1232221992827,1cyclictest2045-21snmpd21:42:1910
123222199280,27cyclictest0-21swapper/422:20:2910
1232217992827,1cyclictest2045-21snmpd23:07:339
1232217992827,1cyclictest2045-21snmpd19:15:299
123221799280,27cyclictest0-21swapper/323:04:279
123221799280,27cyclictest0-21swapper/320:40:179
1232211992827,1cyclictest2045-21snmpd00:03:501
1232211992826,1cyclictest2045-21snmpd21:11:531
1232211992822,3cyclictest0-21swapper/122:50:151
1232207992827,1cyclictest1332318-21iostat_ios21:35:150
123220799280,27cyclictest0-21swapper/000:00:150
1232257992726,1cyclictest2045-21snmpd22:40:577
1232257992725,1cyclictest2045-21snmpd21:44:257
1232253992726,1cyclictest2045-21snmpd20:25:566
1232253992726,1cyclictest1357942-21ethtool22:05:166
1232253992726,1cyclictest0-21swapper/1400:29:566
123225399270,27cyclictest0-21swapper/1420:56:446
123225399270,26cyclictest0-21swapper/1423:13:066
123225199270,26cyclictest0-21swapper/1322:54:035
123225199270,26cyclictest0-21swapper/1319:46:155
123225199270,26cyclictest0-21swapper/1300:19:595
123225199270,1cyclictest0-21swapper/1321:58:285
123225199270,1cyclictest0-21swapper/1321:30:045
1232247992726,1cyclictest2045-21snmpd23:04:334
1232247992726,1cyclictest0-21swapper/1219:24:124
123224799270,1cyclictest0-21swapper/1223:23:254
123224799270,1cyclictest0-21swapper/1223:23:254
123224799270,1cyclictest0-21swapper/1221:09:304
1232243992726,1cyclictest0-21swapper/1100:02:353
123224399270,27cyclictest0-21swapper/1122:29:143
123224399270,1cyclictest0-21swapper/1120:18:583
123224399270,1cyclictest0-21swapper/1120:18:583
1232241992727,0cyclictest1278348-21kworker/10:1+events21:15:202
1232241992726,1cyclictest2045-21snmpd23:34:192
1232241992726,1cyclictest2045-21snmpd23:34:192
1232241992726,1cyclictest2045-21snmpd20:32:502
1232241992726,1cyclictest1430922-21kworker/10:0+events23:38:442
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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