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2025-11-21 - 21:25
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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 highest latencies:
System rack7slot8.osadl.org (updated Fri Nov 21, 2025 13:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2181321067220,478sleep021174-21kworker/0:107:05:210
2272199149126,14cyclictest57982sleep008:10:120
227219914257,32cyclictest25198-21apt-get07:17:280
227219913475,43cyclictest1424-21nginx08:40:250
227219913461,39cyclictest7842-21ntp_states08:16:200
227219913458,21cyclictest1356-21snmpd12:27:130
227219913455,25cyclictest23924-21latency_hist07:15:070
227219913360,53cyclictest28983-21/usr/sbin/munin09:40:210
227219913258,21cyclictest4601-21df10:10:150
227219913253,39cyclictest1356-21snmpd08:50:140
227219913141,35cyclictest29564-21df11:50:170
227219913056,36cyclictest23846-21fw_conntrack09:20:290
227219912962,48cyclictest21296-21diskstats09:10:230
227219912959,50cyclictest1424-21nginx08:24:110
227219912957,19cyclictest1540-21ntp_states12:06:140
227219912955,53cyclictest25149-21sshd09:25:310
227219912955,33cyclictest3257-21/usr/sbin/munin08:00:520
227219912953,39cyclictest2786-21ps12:10:430
227219912857,51cyclictest1531-21munin-node07:25:110
227219912857,36cyclictest1534-21apt-config10:00:080
227219912775,33cyclictest8585-21sshd10:25:440
227219912763,47cyclictest27955-21diskstats09:35:360
227219912755,34cyclictest1356-21snmpd09:50:430
227219912662,44cyclictest17522-21sort08:55:160
227219912655,52cyclictest1356-21snmpd12:01:160
227219912654,35cyclictest7335-21ntp_states10:20:450
227219912654,20cyclictest14600-21df_inode10:50:200
227219912653,38cyclictest31099-21ntp_states07:40:500
227219912554,32cyclictest1356-21snmpd09:05:200
227219912553,35cyclictest9810-21ntp_states10:30:420
227219912471,41cyclictest24511-21cut11:30:180
227219912454,51cyclictest26393-21/usr/sbin/munin09:30:330
227219912453,35cyclictest1356-21snmpd11:01:020
227219912452,35cyclictest9050-21wget12:35:160
227219912451,36cyclictest1356-21snmpd10:15:520
227219912369,36cyclictest1356-21snmpd11:36:100
227219912361,22cyclictest12593-21fw_conntrack08:35:260
227219912357,47cyclictest2219-21diskstats10:00:520
227219912355,33cyclictest28332-21df_inode11:45:210
227219912262,46cyclictest1356-21snmpd08:45:110
227219912262,21cyclictest32171-21fw_forwarded_lo07:45:270
227219912252,51cyclictest1356-21snmpd10:56:020
227219912252,35cyclictest10447-21grep08:25:470
227219912250,33cyclictest31751-21munin-run12:00:020
227219912249,36cyclictest3699-21wget12:15:200
227219912161,21cyclictest11778-21sh10:40:010
227219912160,20cyclictest30423-21df_inode09:45:200
227219912156,23cyclictest29624-21df_inode07:35:210
227219912154,33cyclictest18796-21df_inode09:00:180
227219912052,36cyclictest4855-21/usr/sbin/munin12:20:190
227219912050,22cyclictest19572-21df11:10:180
227219911970,37cyclictest21014-21ntp_states11:15:400
227219911960,40cyclictest1336-21runrttasks10:40:270
227219911946,52cyclictest22514-21/usr/sbin/munin09:15:170
227219911878,28cyclictest4907-21ntp_states08:05:470
227219911873,36cyclictest28226-21/usr/sbin/munin07:30:130
227219911862,36cyclictest13246-21wget10:45:170
227219911845,35cyclictest935-21diskstats07:50:210
227219911749,37cyclictest1356-21snmpd11:06:030
227219911661,42cyclictest23352-21diskstats11:25:210
227219911657,46cyclictest1356-21snmpd07:20:490
227219911656,21cyclictest2236-21runrttasks07:55:250
227219911558,43cyclictest1424-21nginx11:41:030
227219911555,19cyclictest11349-21df_inode08:30:350
227219911468,35cyclictest22120-21seq11:20:260
227219911453,42cyclictest1356-21snmpd10:06:580
227219911362,40cyclictest1356-21snmpd12:30:310
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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