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2026-08-10 - 08:15
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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 10, 2026 00:44:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
181422236222,10sleep10-21swapper/119:05:581
183052195179,11sleep00-21swapper/019:08:060
183132189173,12sleep30-21swapper/319:08:133
183372169152,12sleep20-21swapper/219:08:322
253872710,1sleep20-21swapper/221:47:212
271922500,0sleep10-21swapper/121:31:511
130852490,0sleep10-21swapper/121:40:521
268452440,0sleep20-21swapper/219:25:012
164852410,1sleep11862099cyclictest22:31:401
253672140,0sleep20-21swapper/200:14:452
171712120,0sleep30-21swapper/323:54:093
209882100,0sleep10-21swapper/123:39:501
3056290,0sleep10-21swapper/123:46:261
186199982,3cyclictest19342-21awk22:50:010
25743260,0sleep10-21swapper/122:20:141
186229960,1cyclictest5053-21ssh22:58:492
186199960,5cyclictest0-21swapper/023:00:110
22015250,0sleep322290-21users21:45:233
186269950,5cyclictest0-21swapper/321:22:203
186269950,5cyclictest0-21swapper/321:15:203
186269950,4cyclictest29331-21ssh21:33:133
186269950,4cyclictest27090-21cat19:25:013
186269950,4cyclictest0-21swapper/320:50:103
186229951,2cyclictest0-21swapper/219:15:142
186229950,5cyclictest0-21swapper/223:56:262
186229950,5cyclictest0-21swapper/222:22:442
186229950,5cyclictest0-21swapper/221:24:322
186229950,5cyclictest0-21swapper/219:40:132
186229950,4cyclictest27123-21apt-get19:25:012
186229950,4cyclictest0-21swapper/219:55:012
186209951,3cyclictest0-21swapper/121:20:121
186209950,5cyclictest0-21swapper/122:06:591
186209950,5cyclictest0-21swapper/120:05:201
186209950,5cyclictest0-21swapper/100:33:481
186209950,5cyclictest0-21swapper/100:28:251
186199954,1cyclictest0-21swapper/021:47:390
186199953,1cyclictest31235-21ssh22:55:170
186199950,5cyclictest0-21swapper/023:45:030
186199950,5cyclictest0-21swapper/022:10:120
186199950,5cyclictest0-21swapper/021:38:020
186199950,0cyclictest0-21swapper/023:52:200
186199950,0cyclictest0-21swapper/000:16:560
186269944,0cyclictest21205-21kworker/3:221:10:153
186269944,0cyclictest0-21swapper/319:20:143
186269943,1cyclictest25051-21cut20:25:133
186269943,1cyclictest25051-21cut20:25:133
186269942,1cyclictest16335-21ntpq22:15:173
186269942,1cyclictest0-21swapper/300:20:103
186269941,2cyclictest0-21swapper/320:00:193
186269940,4cyclictest32457-21apt-get20:40:133
186269940,4cyclictest15828-21ssh21:42:363
186269940,4cyclictest0-21swapper/322:40:103
186269940,4cyclictest0-21swapper/322:35:113
186269940,4cyclictest0-21swapper/322:07:143
186269940,4cyclictest0-21swapper/320:15:113
186269940,4cyclictest0-21swapper/300:35:133
186269940,4cyclictest0-21swapper/300:26:473
186269940,4cyclictest0-21swapper/300:05:353
186269940,3cyclictest7700-21tr23:00:123
186269940,3cyclictest5765-21sh22:26:103
186269940,3cyclictest5596-21perl23:15:143
186269940,3cyclictest354-21ssh23:12:333
186269940,3cyclictest30994-21hddtemp_smartct21:50:153
186269940,3cyclictest30042-21irqstats00:00:183
186269940,3cyclictest29633-21cat22:55:013
186269940,3cyclictest26864-21df_inode00:15:143
186269940,3cyclictest25158-21df_inode23:25:113
186269940,3cyclictest25067-21ssh22:03:463
186269940,3cyclictest24481-21sh23:57:303
186269940,3cyclictest24430-21cat00:30:163
186269940,3cyclictest21621-21wc22:50:193
186269940,3cyclictest20184-21sh23:22:303
186269940,3cyclictest19931-21rm00:11:173
186269940,3cyclictest16778-21sh22:48:233
186269940,3cyclictest15544-21sh21:25:543
186269940,3cyclictest13402-21irqstats22:30:143
186269940,3cyclictest12838-21hddtemp_smartct23:35:143
186269940,3cyclictest12570-21sh21:57:083
186269940,3cyclictest0-21swapper/321:05:113
186269940,2cyclictest0-21swapper/321:36:593
186269940,1cyclictest7082-21/usr/sbin/munin19:50:133
186269940,1cyclictest4613-21/usr/sbin/munin19:45:203
186269940,1cyclictest354-21perl19:35:163
186269940,1cyclictest31662-21/usr/sbin/munin23:45:163
186269940,1cyclictest2618-21cat23:30:143
186269940,1cyclictest18739-21/usr/sbin/munin19:10:203
186269940,1cyclictest18453-21ntp_states20:10:223
186269940,1cyclictest17396-21/usr/sbin/munin23:05:193
186269940,1cyclictest11396-21timerandwakeup19:55:223
186269940,1cyclictest0-21swapper/322:20:123
186229944,0cyclictest0-21swapper/222:37:352
186229944,0cyclictest0-21swapper/221:51:272
186229944,0cyclictest0-21swapper/219:30:172
186229942,1cyclictest21726-21ssh22:01:382
186229941,1cyclictest0-21swapper/220:05:132
186229940,4cyclictest8129-21ssh23:16:092
186229940,4cyclictest0-21swapper/223:45:112
186229940,4cyclictest0-21swapper/223:35:112
186229940,4cyclictest0-21swapper/223:31:312
186229940,4cyclictest0-21swapper/223:25:112
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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