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2026-07-19 - 17:19
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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 792 highest latencies:
System rack7slot8.osadl.org (updated Sun Jul 19, 2026 02:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
32611227225,205sleep032407-21/usr/sbin/munin19:05:190
1153991736,108cyclictest12236-21apt-get22:02:110
11539917011,137cyclictest14298-21apt-get00:17:220
1153991668,113cyclictest2010-21node23:33:550
1153991656,137cyclictest4967-21chrt19:22:260
1153991638,111cyclictest13045-21df_inode19:55:180
1153991629,103cyclictest10508-21munin-run00:00:020
1153991618,111cyclictest18593-21apt-get20:17:060
11539916142,104cyclictest10250irq/56-4a10000022:00:070
1153991608,108cyclictest2010-21node23:47:470
1153991608,100cyclictest27984-21df20:55:180
1153991599,109cyclictest30572-21ntp_states23:10:400
1153991598,109cyclictest6877-21fw_packets19:30:280
1153991597,96cyclictest8418-21fw_forwarded_lo23:50:470
1153991597,94cyclictest28920-21apt-get21:02:090
11539915833,108cyclictest10250irq/56-4a10000020:22:000
1153991577,130cyclictest29697-21runrttasks23:06:550
1153991558,105cyclictest3499-21fw_forwarded_lo21:25:270
1153991557,108cyclictest10813-21chrt21:53:340
1153991546,88cyclictest4385-21apt-get21:32:070
11539915441,103cyclictest27581-21munin-plugin-st23:00:010
11539915422,113cyclictest9622-21processes19:40:420
1153991539,124cyclictest1-21systemd00:31:520
1153991536,124cyclictest20212-21/usr/sbin/munin00:35:140
1153991527,124cyclictest12123-21sshd00:05:250
1153991527,107cyclictest15628-21ntp_states22:10:430
11539915242,98cyclictest13404-21runrttasks00:10:370
1153991509,126cyclictest15644-21irqstats20:05:300
1153991508,88cyclictest24144-21df22:45:170
1153991507,121cyclictest4021-21aten_r7power_cu23:35:120
1153991507,108cyclictest3655-21apt-get19:17:580
1153991507,105cyclictest1652-21ntp_states19:10:410
11539915010,105cyclictest11078-21ntp_states00:00:460
1153991499,105cyclictest16387-21memory00:20:380
1153991498,106cyclictest25516-21df_inode20:45:200
1153991497,125cyclictest20277-21wget22:30:130
1153991496,105cyclictest603-21nfs4_client23:20:510
1153991486,119cyclictest8943-21runrttasks21:45:340
11539914839,97cyclictest1312-21sshd20:28:350
11539914834,95cyclictest0-21swapper/022:23:390
11539914717,110cyclictest6391-21latency_hist23:45:040
1153991468,118cyclictest1305-21snmpd21:20:000
1153991467,120cyclictest1305-21snmpd22:43:440
11539914638,94cyclictest5829-21pluginstate19:25:450
1153991457,96cyclictest16705-21tr20:10:140
1153991457,124cyclictest2412-21ntp_states21:20:420
1153991457,122cyclictest17237-21apt-get22:17:060
11539914510,122cyclictest17516-21diskstats00:25:250
1153991447,119cyclictest21862-21ntpq22:35:420
11539914442,86cyclictest10150irq/55-4a10000023:18:520
11539914420,106cyclictest31720-21sshd21:09:240
11539914414,112cyclictest6160-21wget21:35:160
1153991438,98cyclictest498-21sshd21:14:250
1153991438,117cyclictest24484-21awk20:40:410
1153991437,98cyclictest197122sleep022:26:450
11539914339,92cyclictest23807-21runrttasks20:38:570
11539914329,103cyclictest1713-21df_inode23:25:180
1153991429,121cyclictest8102-21fw_conntrack19:35:260
1153991428,92cyclictest10582-21diskstats19:45:240
11539914245,85cyclictest27105-21/usr/sbin/munin20:50:470
11539914236,94cyclictest14198-21diskstats22:05:220
11539914210,120cyclictest27916-21diskstats23:00:220
1153991416,114cyclictest14185-21aten_r7power_po20:00:140
1153991409,119cyclictest12217-21users19:50:490
1153991409,117cyclictest25415-21sshd22:50:220
1153991408,94cyclictest7688-21irqstats21:40:320
11539914036,92cyclictest22359-21runrttasks20:32:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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