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2026-08-04 - 03:22
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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 Tue Aug 04, 2026 00:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
198992203191,9sleep10-21swapper/119:07:471
198242199182,12sleep30-21swapper/319:06:493
199132189173,12sleep00-21swapper/019:07:590
197762169152,13sleep20-21swapper/219:06:112
81702480,0sleep30-21swapper/322:10:203
257072450,0sleep20-21swapper/221:14:582
10782440,0sleep31080-21latency_hist20:40:003
62282430,0sleep30-21swapper/321:37:103
242932410,0sleep10-21swapper/122:02:371
129322100,0sleep10-21swapper/121:24:461
203099980,4cyclictest16593-21awk00:10:000
203099962,4cyclictest5533-21munin-run22:10:020
26453250,0sleep30-21swapper/323:25:153
203419951,2cyclictest0-21swapper/320:45:133
203419950,5cyclictest0-21swapper/323:56:043
203419950,5cyclictest0-21swapper/323:05:483
203419950,5cyclictest0-21swapper/322:30:153
203419950,5cyclictest0-21swapper/319:50:123
203419950,3cyclictest0-21swapper/322:19:333
203239955,0cyclictest31-21ksoftirqd/220:20:002
203239950,5cyclictest0-21swapper/223:13:582
203239950,5cyclictest0-21swapper/222:46:112
203239950,5cyclictest0-21swapper/219:51:172
203239950,5cyclictest0-21swapper/200:00:122
203239950,4cyclictest6376-21apt-get20:50:012
203239950,4cyclictest17051-21ssh00:10:102
203149950,5cyclictest0-21swapper/123:02:211
203099955,0cyclictest0-21swapper/022:59:150
203099950,5cyclictest2084-21sensors_temp23:45:210
6677240,0sleep10-21swapper/122:25:511
24895240,4sleep016060-21diskmemload23:57:110
21621240,0sleep10-21swapper/100:28:511
203419944,0cyclictest0-21swapper/323:51:093
203419944,0cyclictest0-21swapper/322:04:553
203419944,0cyclictest0-21swapper/300:37:063
203419943,1cyclictest9642-21memory23:00:173
203419943,1cyclictest3010-21unixbench_multi20:40:213
203419942,2cyclictest31536-21grep19:30:113
203419942,1cyclictest3712-21ssh22:25:083
203419941,3cyclictest31884-21if_eth122:55:153
203419941,3cyclictest19975-21sh00:10:523
203419941,2cyclictest0-21swapper/320:30:113
203419941,2cyclictest0-21swapper/320:15:133
203419941,2cyclictest0-21swapper/320:10:103
203419941,1cyclictest0-21swapper/323:45:133
203419940,4cyclictest30618-21ssh00:16:243
203419940,4cyclictest17318-21perl21:10:153
203419940,4cyclictest13677-21rm21:40:353
203419940,4cyclictest0-21swapper/323:30:483
203419940,4cyclictest0-21swapper/322:40:123
203419940,4cyclictest0-21swapper/322:35:103
203419940,4cyclictest0-21swapper/322:20:263
203419940,4cyclictest0-21swapper/321:56:103
203419940,4cyclictest0-21swapper/321:32:493
203419940,4cyclictest0-21swapper/320:55:163
203419940,4cyclictest0-21swapper/319:35:163
203419940,4cyclictest0-21swapper/319:25:113
203419940,4cyclictest0-21swapper/300:05:123
203419940,3cyclictest5775-21ntp_states00:20:193
203419940,3cyclictest3348-21latency_hist21:20:013
203419940,3cyclictest3057-21ssh23:13:413
203419940,3cyclictest3008-21sh00:02:363
203419940,3cyclictest24227-21/usr/sbin/munin23:40:153
203419940,3cyclictest24198-21/usr/sbin/munin00:30:133
203419940,3cyclictest23780-21apt-get20:20:133
203419940,3cyclictest19850-21sh00:27:413
203419940,3cyclictest14923-21irqstats21:25:173
203419940,3cyclictest14341-21df21:05:133
203419940,3cyclictest13570-21df23:35:143
203419940,3cyclictest0-21swapper/323:15:123
203419940,1cyclictest3888-21/usr/sbin/munin21:20:213
203419940,1cyclictest26293-21/usr/sbin/munin19:20:233
203419940,1cyclictest21627-21diskstats22:50:153
203419940,1cyclictest12442-21ntp_states19:55:173
203419940,0cyclictest0-21swapper/322:06:143
203419940,0cyclictest0-21swapper/321:49:563
203239944,0cyclictest0-21swapper/223:43:392
203239944,0cyclictest0-21swapper/223:15:522
203239941,3cyclictest20627-21ssh23:05:322
203239941,3cyclictest12442-21ntp_states19:55:182
203239941,1cyclictest0-21swapper/220:40:112
203239940,4cyclictest25229-21gunzip22:35:182
203239940,4cyclictest16060-21diskmemload22:05:142
203239940,4cyclictest0-21swapper/223:50:112
203239940,4cyclictest0-21swapper/223:45:042
203239940,4cyclictest0-21swapper/223:35:132
203239940,4cyclictest0-21swapper/223:30:132
203239940,4cyclictest0-21swapper/223:29:332
203239940,4cyclictest0-21swapper/223:00:142
203239940,4cyclictest0-21swapper/222:55:102
203239940,4cyclictest0-21swapper/222:25:132
203239940,4cyclictest0-21swapper/222:15:132
203239940,4cyclictest0-21swapper/222:10:472
203239940,4cyclictest0-21swapper/221:55:012
203239940,4cyclictest0-21swapper/221:40:132
203239940,4cyclictest0-21swapper/221:25:132
203239940,4cyclictest0-21swapper/220:45:182
203239940,4cyclictest0-21swapper/220:34:472
203239940,4cyclictest0-21swapper/219:44:352
203239940,4cyclictest0-21swapper/200:30:112
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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