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2025-12-06 - 23:16
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Data to construct the above plot have been generated using the RT test utility cyclictest.

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 50 highest latencies:
System rack7slot8.osadl.org (updated Sat Dec 06, 2025 13:44:16)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
20939212010,11sleep020938-21forks07:05:190
219079917027,109cyclictest29495-21/usr/sbin/munin07:40:520
219079916610,100cyclictest1356-21snmpd09:45:500
21907991648,109cyclictest24004-21apt-get07:17:060
21907991608,112cyclictest16398-21fw_forwarded_lo08:55:260
21907991607,94cyclictest25175-21apt-get09:32:120
219079916026,113cyclictest1356-21snmpd08:52:430
219079915924,117cyclictest1424-21nginx11:55:460
21907991587,97cyclictest28425-21df_inode07:35:190
219079915818,118cyclictest1424-21nginx10:01:120
219079915736,89cyclictest10250irq/56-4a10000010:46:060
21907991569,90cyclictest31065-21ntp_states09:50:420
21907991568,128cyclictest28476-21grep11:50:020
21907991567,110cyclictest1356-21snmpd08:25:410
219079915632,103cyclictest18667-21/usr/sbin/munin09:05:440
21907991558,94cyclictest8434-21df10:30:190
21907991558,130cyclictest25187-21http09:30:040
21907991558,101cyclictest6697-21wget12:30:310
21907991556,89cyclictest22314-21apt-get09:18:190
219079915531,108cyclictest10250irq/56-4a10000011:01:240
21907991547,99cyclictest21497-21ntp_states11:20:390
21907991546,108cyclictest1356-21snmpd09:35:450
219079915430,107cyclictest10250irq/56-4a10000009:00:590
219079915430,106cyclictest1356-21snmpd10:26:000
21907991538,101cyclictest20045-21diskstats11:15:220
21907991536,125cyclictest4483-21/usr/sbin/munin10:15:320
21907991535,110cyclictest30796-21cut07:45:150
21907991529,105cyclictest1531-21munin-node12:05:270
21907991528,103cyclictest1035-21/usr/sbin/munin07:55:300
21907991526,92cyclictest11368-21df08:35:190
219079915239,101cyclictest12822-21ntpq08:40:390
21907991518,97cyclictest13112-21apt-get10:52:130
219079915126,108cyclictest10250irq/56-4a10000008:00:110
21907991507,108cyclictest1801-21node11:41:290
21907991506,104cyclictest3443-21df_inode10:10:200
219079915039,100cyclictest10346-21ntpq08:30:460
219079915038,100cyclictest23016-21diskstats09:20:220
219079915025,107cyclictest10250irq/56-4a10000012:26:310
21907991498,99cyclictest5801-21aten_r7power_cu08:15:130
21907991497,90cyclictest1741-21df_inode12:10:200
219079914926,101cyclictest3576-21runrttasks12:17:040
21907991488,103cyclictest1356-21snmpd11:36:190
21907991487,87cyclictest5954-21df_inode10:20:190
21907991487,123cyclictest23211-21runrttasks11:27:440
21907991487,122cyclictest7622-21sshd08:20:470
21907991487,120cyclictest32468-21/usr/sbin/munin09:55:500
21907991486,123cyclictest32085-21/usr/sbin/munin07:50:220
219079914810,93cyclictest31899-21ntp_states12:00:500
21907991477,101cyclictest15239-21ntp_states10:55:380
21907991476,105cyclictest2683-21chrt10:06:180
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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