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2026-07-27 - 18:15
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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 Jul 27, 2026 12:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
211752196180,11sleep10-21swapper/107:09:481
209782191174,12sleep00-21swapper/007:07:170
209912189171,13sleep30-21swapper/307:07:293
208882176158,14sleep20-21swapper/207:06:082
93142640,1sleep12138799cyclictest10:25:241
108072460,0sleep010808-21ssh12:35:580
257132420,0sleep10-21swapper/112:27:261
119402420,0sleep311939-21sendmail_mailst11:15:223
119402420,0sleep311939-21sendmail_mailst11:15:223
301952120,0sleep10-21swapper/110:52:171
187852110,0sleep20-21swapper/210:14:552
177312110,0sleep30-21swapper/310:45:473
213829982,3cyclictest15118-21perf09:25:010
213829971,3cyclictest10882-21awk09:55:010
214009960,5cyclictest0-21swapper/309:50:103
213829960,5cyclictest23702-21apt-get09:45:140
214009951,3cyclictest11952-21sh10:10:393
214009950,5cyclictest0-21swapper/311:46:163
214009950,5cyclictest0-21swapper/311:21:573
214009950,5cyclictest0-21swapper/308:50:203
214009950,3cyclictest0-21swapper/312:26:483
214009950,2cyclictest4159-21fschecks_time09:35:133
213959950,5cyclictest0-21swapper/211:22:542
213959950,5cyclictest0-21swapper/210:15:042
213959950,5cyclictest0-21swapper/210:08:152
213879951,2cyclictest0-21swapper/111:00:121
213879951,2cyclictest0-21swapper/109:55:121
213879950,5cyclictest0-21swapper/112:04:161
213829955,0cyclictest0-21swapper/010:55:040
213829955,0cyclictest0-21swapper/010:51:000
213829950,5cyclictest0-21swapper/011:31:360
213829950,0cyclictest6465-21ssh09:35:560
31870240,0sleep20-21swapper/207:29:372
30420240,3sleep30-21swapper/310:20:143
214009943,1cyclictest12295-21/usr/sbin/munin07:55:143
214009942,1cyclictest4962-21/usr/sbin/munin10:40:143
214009942,1cyclictest12870-21grep12:05:133
214009941,3cyclictest57150irq/125-eth011:30:543
214009941,3cyclictest0-21swapper/308:10:193
214009941,2cyclictest31122-21apt-key10:05:003
214009940,4cyclictest28296-21ssh11:55:593
214009940,4cyclictest22399-21/usr/sbin/munin08:15:193
214009940,4cyclictest18362-21ssh09:25:463
214009940,4cyclictest17460-21apt-get08:05:123
214009940,4cyclictest0-21swapper/312:11:323
214009940,4cyclictest0-21swapper/311:43:313
214009940,4cyclictest0-21swapper/311:36:483
214009940,4cyclictest0-21swapper/311:04:133
214009940,4cyclictest0-21swapper/310:56:583
214009940,4cyclictest0-21swapper/310:50:043
214009940,4cyclictest0-21swapper/310:25:143
214009940,4cyclictest0-21swapper/310:05:013
214009940,4cyclictest0-21swapper/309:22:013
214009940,4cyclictest0-21swapper/309:15:133
214009940,4cyclictest0-21swapper/308:20:203
214009940,3cyclictest990-21ntp_states07:30:193
214009940,3cyclictest8793-21sh12:19:263
214009940,3cyclictest8350-21df_inode12:35:143
214009940,3cyclictest32657-21ssh11:10:123
214009940,3cyclictest31202-21ssh11:09:263
214009940,3cyclictest31036-21perl11:25:153
214009940,3cyclictest30931-21sh10:36:163
214009940,3cyclictest25242-21ssh10:17:413
214009940,3cyclictest25138-21ntp_states09:45:203
214009940,3cyclictest22212-21sh10:32:093
214009940,3cyclictest14783-21memory09:40:183
214009940,3cyclictest13091-21python09:55:203
214009940,1cyclictest24714-21/usr/sbin/munin07:15:173
214009940,1cyclictest16174-21expr11:50:163
214009940,1cyclictest11821-21grep12:20:183
214009940,0cyclictest0-21swapper/312:00:223
213959944,0cyclictest0-21swapper/212:30:062
213959944,0cyclictest0-21swapper/212:20:052
213959944,0cyclictest0-21swapper/209:25:022
213959941,3cyclictest9208-21ntp_states12:35:182
213959941,2cyclictest0-21swapper/209:20:132
213959941,2cyclictest0-21swapper/208:35:122
213959941,1cyclictest21537-21ssh10:00:132
213959940,4cyclictest8016-21perl10:25:172
213959940,4cyclictest28583-21ssh09:47:072
213959940,4cyclictest14973-21ntpq09:40:182
213959940,4cyclictest0-21swapper/212:18:082
213959940,4cyclictest0-21swapper/211:40:132
213959940,4cyclictest0-21swapper/211:35:122
213959940,4cyclictest0-21swapper/211:33:222
213959940,4cyclictest0-21swapper/211:25:142
213959940,4cyclictest0-21swapper/211:15:142
213959940,4cyclictest0-21swapper/211:15:142
213959940,4cyclictest0-21swapper/211:05:112
213959940,4cyclictest0-21swapper/210:20:432
213959940,4cyclictest0-21swapper/209:52:342
213959940,4cyclictest0-21swapper/209:30:142
213959940,4cyclictest0-21swapper/207:35:132
213959940,3cyclictest8212-21ssh11:45:532
213959940,3cyclictest8052-21ssh11:13:592
213959940,3cyclictest6816-21ssh12:01:352
213959940,3cyclictest662-21ssh10:54:082
213959940,3cyclictest31105-21ntp_states08:30:182
213959940,3cyclictest30690-21ssh10:36:082
213959940,3cyclictest27512-21ssh09:15:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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