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2026-08-17 - 16:28
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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 rack5slot2.osadl.org (updated Mon Aug 17, 2026 12:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
311702204171,28sleep00-21swapper/007:08:020
312232200184,12sleep10-21swapper/107:08:441
312882187170,12sleep30-21swapper/307:09:333
2931421820,2sleep20-21swapper/207:05:152
130682820,0sleep327107-21diskmemload10:40:073
135562520,0sleep00-21swapper/011:12:340
278512480,0sleep10-21swapper/109:58:421
271552460,0sleep027123-21ssh09:25:210
313922430,0sleep10-21swapper/108:10:201
313922430,0sleep10-21swapper/108:10:191
275832380,0sleep30-21swapper/311:03:283
3151599103,3cyclictest20120-21sendmail-msp11:00:000
315279974,2cyclictest25099-21perf10:30:003
315279971,1cyclictest0-21swapper/312:05:123
315279971,1cyclictest0-21swapper/311:55:143
315279971,1cyclictest0-21swapper/309:30:013
315279970,2cyclictest21474-21python07:50:203
315159976,1cyclictest0-21swapper/007:50:130
315279965,1cyclictest13358-21apt-get12:35:103
315279964,1cyclictest9461-21apt-get12:00:133
315279964,1cyclictest27654-21apt-get09:10:143
315279964,1cyclictest25263-21apt-get09:25:123
315279964,1cyclictest2427-21apt-get07:15:123
315279963,2cyclictest27107-21diskmemload11:05:133
315279963,2cyclictest2406-21apt-get08:20:123
315279963,2cyclictest12304-21apt-get08:40:123
315279962,3cyclictest2696-21tr11:40:123
315279962,3cyclictest16875-21df12:20:133
315279961,4cyclictest31407-21sed08:10:193
315279961,4cyclictest31407-21sed08:10:193
315279961,3cyclictest7763-21rm10:20:203
315279961,3cyclictest28754-21ssh10:47:393
315279961,3cyclictest2221-21ssh10:01:393
315279961,3cyclictest21684-21sh11:16:273
315279961,3cyclictest16618-21grep07:40:213
315279961,2cyclictest4157-21irqstats10:35:163
315279961,2cyclictest27107-21diskmemload12:18:413
315279961,2cyclictest27107-21diskmemload10:50:413
315279961,2cyclictest27107-21diskmemload10:06:203
315279961,2cyclictest27107-21diskmemload09:48:303
315279961,2cyclictest27107-21diskmemload09:40:423
315279961,2cyclictest26184-21ntp_states08:00:193
315279961,1cyclictest25399-21diskstats09:05:123
315279961,1cyclictest0-21swapper/308:25:193
315279960,4cyclictest24782-21ssh11:50:413
315279960,3cyclictest6151-21ssh12:30:413
315279960,2cyclictest27256-21rm11:35:293
315279960,2cyclictest27107-21diskmemload11:25:273
315279960,2cyclictest27107-21diskmemload10:30:233
315279960,2cyclictest27107-21diskmemload10:14:013
315279960,2cyclictest23365-21if_eth409:00:143
315279960,2cyclictest17771-21seq08:50:143
315279960,1cyclictest0-21swapper/307:35:133
315279960,0cyclictest0-21swapper/311:10:173
315159960,5cyclictest0-21swapper/010:40:010
315279954,1cyclictest7343-21apt-get08:30:103
315279953,2cyclictest9812-21apt-get08:35:113
315279953,2cyclictest7389-21apt-get07:25:123
315279953,2cyclictest27815-21cat12:25:213
315279953,2cyclictest15112-21apt-get11:30:113
315279952,3cyclictest15513-21tr09:20:123
315279952,3cyclictest10375-21df07:30:133
315279952,2cyclictest5341-21ssh09:15:133
315279952,2cyclictest29170-21ntp_states11:20:163
315279952,2cyclictest29170-21ntp_states11:20:163
315279952,2cyclictest11069-21fschecks_time09:50:123
315279951,3cyclictest27107-21diskmemload09:35:023
315279951,2cyclictest0-21swapper/307:20:153
315279951,1cyclictest389-21df_inode08:15:133
315279951,1cyclictest32464-21hwlatdetect07:10:153
315279951,1cyclictest0-21swapper/310:55:103
315279950,4cyclictest15476-21fschecks_time08:45:163
315279950,3cyclictest30589-21ssh12:10:183
315279950,3cyclictest29135-21ssh10:15:143
315279950,3cyclictest0-21swapper/311:45:163
315279950,3cyclictest0-21swapper/307:45:193
315279950,1cyclictest0-21swapper/309:55:013
315279950,1cyclictest0-21swapper/308:55:163
315199951,4cyclictest802-21snmpd10:13:542
315199950,5cyclictest0-21swapper/212:31:262
315199950,5cyclictest0-21swapper/211:27:412
315199950,5cyclictest0-21swapper/209:57:372
315199950,4cyclictest0-21swapper/212:10:012
315199950,0cyclictest0-21swapper/210:54:142
315169952,2cyclictest0-21swapper/109:20:111
315169951,2cyclictest0-21swapper/112:25:121
315169951,2cyclictest0-21swapper/112:15:121
315169950,5cyclictest0-21swapper/112:11:541
315169950,5cyclictest0-21swapper/111:31:441
315169950,5cyclictest0-21swapper/110:55:311
315169950,5cyclictest0-21swapper/110:29:201
315159952,3cyclictest802-21snmpd09:31:030
315159951,2cyclictest0-21swapper/008:45:130
315159950,5cyclictest14833-21ssh11:45:380
315159950,5cyclictest0-21swapper/012:35:100
315159950,4cyclictest27107-21diskmemload10:22:020
315159950,0cyclictest0-21swapper/011:41:340
315279942,2cyclictest29228-21users08:05:213
315279942,2cyclictest23043-21grep07:55:133
315199944,0cyclictest0-21swapper/212:05:062
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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