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2025-12-03 - 14:39
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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 Wed Dec 03, 2025 01:44:19)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2588522230,6sleep025882-21munin-run19:10:010
259439912440,65cyclictest28843-21chrt23:32:260
259439911759,37cyclictest23410-21apt-key21:05:100
259439911750,48cyclictest1356-21snmpd20:22:100
259439911339,35cyclictest22525-21apt-get23:11:230
259439911238,34cyclictest27525-21latency_hist19:15:010
259439911064,36cyclictest4142-21runrttasks00:01:310
259439911037,38cyclictest15163-21latency_hist20:35:060
259439911036,36cyclictest11613-21df_inode00:30:220
259439911026,26cyclictest15092-21apt-get20:37:060
259439910943,31cyclictest1424-21nginx23:42:260
259439910937,53cyclictest1356-21snmpd21:18:300
259439910821,34cyclictest18675-21df20:45:170
259439910735,35cyclictest6699-21diskstats20:00:240
259439910734,51cyclictest1356-21snmpd22:30:220
259439910641,45cyclictest10990-21chrt20:17:080
259439910632,20cyclictest20648-21sshd20:53:190
259439910631,23cyclictest1669-21df19:40:170
259439910550,37cyclictest3650irq/20-4900000000:22:090
259439910543,48cyclictest1356-21snmpd22:28:460
259439910543,42cyclictest813-21in:imuxsock22:59:190
259439910533,38cyclictest5617-21ntp_states19:55:400
259439910476,21cyclictest8045-21seq00:17:070
259439910458,36cyclictest17251-21apt-key20:40:190
259439910454,34cyclictest3650irq/20-4900000023:05:260
259439910444,21cyclictest1336-21runrttasks23:25:480
259439910442,23cyclictest760-21systemd-journal00:07:200
259439910359,36cyclictest30617-21ps19:25:460
259439910328,21cyclictest13056-21ntpq00:35:430
259439910257,34cyclictest22430-21df_inode21:00:200
259439910238,45cyclictest24326-21grep23:15:150
259439910230,20cyclictest6147-21cpu00:10:180
259439910171,22cyclictest16616-21sshd22:45:200
259439910156,35cyclictest5502-21memory22:00:360
259439910154,37cyclictest1336-21runrttasks20:28:180
259439910148,36cyclictest1356-21snmpd21:38:350
259439910147,38cyclictest1356-21snmpd20:13:160
259439910133,50cyclictest25845-21irqstats23:20:310
259439910132,32cyclictest2799-21wget21:50:160
259439910129,36cyclictest7785-21wget20:05:140
259439910128,36cyclictest1356-21snmpd23:52:280
259439910126,35cyclictest27853-21fw_conntrack21:20:250
259439910055,37cyclictest6626-21df_inode22:05:200
259439910053,34cyclictest18048-21ntp_states22:50:420
259439910037,43cyclictest32672-21wget21:40:130
259439910035,28cyclictest2003-21grep23:55:260
25943999958,31cyclictest30841-21runrttasks21:31:460
25943999956,32cyclictest32101-21runrttasks23:45:340
25943999940,44cyclictest10250irq/56-4a10000023:38:450
25943999936,31cyclictest11127-21sshd00:28:420
25943999864,24cyclictest16294-21cron22:45:010
25943999852,36cyclictest21196-21/usr/sbin/munin20:55:240
25943999830,50cyclictest4529-21/usr/sbin/munin21:55:490
25943999821,25cyclictest579-21ntp_states19:35:410
25943999766,20cyclictest9292-21runrttasks22:15:370
25943999729,33cyclictest1356-21snmpd21:13:290
25943999666,20cyclictest2854-21aten_r7power_vo19:45:170
25943999654,33cyclictest27704-21grep19:15:140
25943999633,23cyclictest15135-21cat22:40:040
25943999553,32cyclictest10250irq/56-4a10000019:50:160
25943999469,18cyclictest7911-21seq22:10:290
25943999448,35cyclictest29087-21/usr/sbin/munin21:25:240
25943999359,18cyclictest10150irq/55-4a10000022:20:410
25943999334,47cyclictest1356-21snmpd23:03:530
25943999229,29cyclictest1356-21snmpd21:48:360
25943999040,39cyclictest28921-21/usr/sbin/munin19:20:520
25943998957,22cyclictest31520-21cut19:30:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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