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2026-08-22 - 08:22
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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 Sat Aug 22, 2026 00:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
308532207192,11sleep10-21swapper/119:08:561
306012186170,12sleep00-21swapper/019:05:380
306462182165,12sleep30-21swapper/319:06:133
30752211497,12sleep20-21swapper/219:07:372
149572490,0sleep10-21swapper/123:14:321
226982470,0sleep30-21swapper/322:12:333
272122460,0sleep10-21swapper/100:25:341
315362430,0sleep231533-21apt-get22:50:112
160062410,0sleep00-21swapper/020:45:180
242982160,0sleep30-21swapper/323:19:113
320532130,0sleep00-21swapper/021:28:380
3111599102,4cyclictest4266-21munin-run20:25:000
311159982,3cyclictest16686-21perf19:45:000
9815270,0sleep10-21swapper/122:39:051
311159965,1cyclictest3-21ksoftirqd/023:45:100
311159960,3cyclictest11719-21munin-run19:35:000
311159960,3cyclictest11280-21munin-run22:40:000
311159960,3cyclictest1038-21munin-run19:15:000
311299953,1cyclictest7198-21tr19:25:093
311299950,5cyclictest502-21ntp_states22:50:173
311299950,5cyclictest0-21swapper/323:44:423
311299950,5cyclictest0-21swapper/323:30:523
311299950,5cyclictest0-21swapper/319:15:563
311299950,5cyclictest0-21swapper/300:16:163
311299950,4cyclictest0-21swapper/320:50:123
311299950,0cyclictest0-21swapper/321:25:363
311249950,5cyclictest0-21swapper/223:54:542
311249950,5cyclictest0-21swapper/223:20:162
311249950,5cyclictest0-21swapper/222:42:182
311249950,5cyclictest0-21swapper/221:53:162
311249950,5cyclictest0-21swapper/221:48:102
311249950,5cyclictest0-21swapper/219:40:112
311249950,4cyclictest8186-21hddtemp_smartct22:05:152
311249950,1cyclictest3084-21hddtemp_smartct00:30:142
311249950,0cyclictest0-21swapper/200:14:502
311209951,2cyclictest0-21swapper/123:25:101
311209951,2cyclictest0-21swapper/123:20:121
311209951,2cyclictest0-21swapper/119:35:101
311209951,2cyclictest0-21swapper/119:25:081
311209951,2cyclictest0-21swapper/100:30:111
311209950,5cyclictest0-21swapper/121:05:191
311159955,0cyclictest0-21swapper/021:54:190
311159950,5cyclictest0-21swapper/023:06:020
311159950,5cyclictest0-21swapper/022:57:360
311159950,5cyclictest0-21swapper/022:46:590
311159950,5cyclictest0-21swapper/000:27:050
311159950,4cyclictest20798-21apt-get23:50:110
311159950,1cyclictest81rcu_preempt19:35:100
311159950,0cyclictest0-21swapper/000:34:390
311299944,0cyclictest12802-21kworker/3:122:23:403
311299944,0cyclictest0-21swapper/323:51:323
311299944,0cyclictest0-21swapper/323:35:053
311299942,1cyclictest32063-21hddtemp_smartct19:10:143
311299940,4cyclictest9803-21ssh23:11:173
311299940,4cyclictest26526-21diskmemload00:10:113
311299940,4cyclictest19665-21ssh21:55:073
311299940,4cyclictest10901-21apt-get23:45:103
311299940,4cyclictest0-21swapper/323:55:103
311299940,4cyclictest0-21swapper/323:27:463
311299940,4cyclictest0-21swapper/323:06:343
311299940,4cyclictest0-21swapper/322:30:113
311299940,4cyclictest0-21swapper/321:35:163
311299940,4cyclictest0-21swapper/321:31:343
311299940,4cyclictest0-21swapper/321:00:093
311299940,4cyclictest0-21swapper/300:30:043
311299940,4cyclictest0-21swapper/300:25:103
311299940,4cyclictest0-21swapper/300:23:063
311299940,3cyclictest8051-21ssh00:00:113
311299940,3cyclictest6758-21latency_hist20:30:003
311299940,3cyclictest5345-21sshd22:36:153
311299940,3cyclictest29655-21ssh21:10:363
311299940,3cyclictest28765-21rm23:20:333
311299940,3cyclictest2759-21perl20:20:143
311299940,3cyclictest26535-21munin-run21:10:013
311299940,3cyclictest24880-21ssh23:02:493
311299940,3cyclictest23445-21irqstats21:40:153
311299940,3cyclictest20432-21ssh00:05:383
311299940,3cyclictest14609-21ssh22:25:123
311299940,3cyclictest11732-21ssh00:35:013
311299940,3cyclictest11571-21ssh22:40:033
311299940,3cyclictest11261-21ssh22:55:283
311299940,3cyclictest1087-21ssh22:01:253
311299940,3cyclictest10579-21ssh22:06:083
311299940,3cyclictest0-21swapper/320:35:093
311299940,3cyclictest0-21swapper/319:45:113
311299940,0cyclictest0-21swapper/322:16:313
311249944,0cyclictest26526-21diskmemload22:57:522
311249944,0cyclictest0-21swapper/222:30:042
311249944,0cyclictest0-21swapper/222:18:352
311249944,0cyclictest0-21swapper/222:00:322
311249943,1cyclictest23280-21systemctl22:45:182
311249941,3cyclictest780-21kworker/2:223:16:412
311249940,4cyclictest26526-21diskmemload00:37:142
311249940,4cyclictest0-21swapper/223:40:092
311249940,4cyclictest0-21swapper/223:35:112
311249940,4cyclictest0-21swapper/223:25:102
311249940,4cyclictest0-21swapper/223:12:112
311249940,4cyclictest0-21swapper/223:05:122
311249940,4cyclictest0-21swapper/223:00:112
311249940,4cyclictest0-21swapper/222:10:262
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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