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2025-07-09 - 07:52
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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 Jul 09, 2025 02:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1167723080,6sleep011676-21/usr/sbin/munin19:05:330
124319910864,27cyclictest101ktimersoftd/023:12:090
12431999931,48cyclictest25641-21chrt20:00:020
12431999673,11cyclictest101ktimersoftd/021:55:430
12431999637,41cyclictest10250irq/56-4a10000022:03:160
128752950,10sleep012876-21grep23:21:340
12431999537,41cyclictest101ktimersoftd/020:07:080
12431999536,44cyclictest101ktimersoftd/019:27:090
12431999531,32cyclictest1336-21runrttasks19:51:590
12431999466,12cyclictest101ktimersoftd/019:35:300
12431999344,31cyclictest3650irq/20-4900000022:12:100
12431999338,39cyclictest0-21swapper/023:29:490
12431999244,32cyclictest101ktimersoftd/022:55:420
12431999236,38cyclictest0-21swapper/000:14:580
12431999131,40cyclictest8119-21if_eth023:05:530
12431998961,12cyclictest101ktimersoftd/021:17:060
12431998865,12cyclictest101ktimersoftd/019:17:110
12431998838,14cyclictest1531-21munin-node20:55:100
12431998812,59cyclictest22148-21munin-run00:00:030
12431998744,28cyclictest101ktimersoftd/021:09:180
12431998741,30cyclictest10250irq/56-4a10000021:46:350
12431998713,54cyclictest1424-21nginx19:21:100
12431998650,26cyclictest0-21swapper/000:15:340
12431998541,33cyclictest15842-21runrttasks23:34:230
12431998536,34cyclictest237492chrt00:05:210
12431998534,34cyclictest9493-21runrttasks21:02:320
12431998512,38cyclictest11421-21apt-get23:17:110
12431998449,27cyclictest0-21swapper/020:20:230
12431998444,12cyclictest101ktimersoftd/023:35:430
12431998436,31cyclictest21636-21find21:50:440
12431998417,50cyclictest28300-21grep22:15:480
12431998414,35cyclictest15022-21wget21:25:150
12431998356,12cyclictest101ktimersoftd/021:40:240
12431998349,15cyclictest10150irq/55-4a10000023:45:230
12431998334,34cyclictest101ktimersoftd/022:05:330
12431998328,37cyclictest0-21swapper/019:30:210
12431998324,44cyclictest3730-21sshd22:48:240
12431998315,27cyclictest0-21swapper/023:52:440
12431998313,32cyclictest29977-21cut20:15:180
1243199828,37cyclictest445-21df22:35:200
12431998260,10cyclictest101ktimersoftd/020:54:150
12431998256,11cyclictest101ktimersoftd/020:15:030
12431998256,11cyclictest101ktimersoftd/000:20:390
12431998255,11cyclictest101ktimersoftd/020:30:220
12431998253,18cyclictest7670-21cron23:05:010
12431998248,24cyclictest4301-21runrttasks20:40:490
12431998238,34cyclictest1549-21/usr/sbin/munin22:40:410
12431998228,42cyclictest1424-21nginx22:53:260
1243199821,30cyclictest14052-21ntpq21:20:410
1243199819,36cyclictest16462-21memory21:30:350
12431998154,11cyclictest101ktimersoftd/019:45:380
12431998110,34cyclictest1356-21snmpd19:43:580
1243199795,39cyclictest1356-21snmpd20:29:090
12431997949,13cyclictest10150irq/55-4a10000021:10:270
12431997937,31cyclictest3476-21sshd20:39:230
12431997936,33cyclictest25941-21sh20:00:180
12431997933,31cyclictest101ktimersoftd/000:30:150
12431997917,15cyclictest32642-21runrttasks22:35:030
1243199778,16cyclictest31270-21diskstats00:35:340
12431997752,10cyclictest101ktimersoftd/000:25:240
12431997744,25cyclictest0-21swapper/020:45:150
12431997716,43cyclictest17419-21grep21:35:150
1243199766,20cyclictest18419-21latency_hist23:45:030
12431997630,29cyclictest30646-21ntp_states22:25:450
12431997630,13cyclictest0-21swapper/019:13:520
12431997613,47cyclictest22367-21aten_r7power_po00:00:150
12431997546,13cyclictest10150irq/55-4a10000022:20:440
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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