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2026-08-02 - 04:06
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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 Sat Aug 01, 2026 14:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1458211070,10sleep01451-21grep07:10:010
15049910246,37cyclictest0-21swapper/010:55:390
15049910133,34cyclictest10250irq/56-4a10000008:15:140
15049910058,29cyclictest101ktimersoftd/009:40:020
1504999870,12cyclictest101ktimersoftd/011:05:430
257822975,13sleep025794-21vmstat10:50:510
1504999735,12cyclictest101ktimersoftd/007:22:090
150499944,35cyclictest20929-21apt-get10:37:110
1504999439,17cyclictest15161-21runrttasks08:01:280
150499928,31cyclictest24320-21ntp_states10:45:400
1504999267,11cyclictest101ktimersoftd/012:40:030
1504999246,31cyclictest101ktimersoftd/012:15:430
1504998948,23cyclictest0-21swapper/012:01:020
1504998864,11cyclictest101ktimersoftd/007:12:020
1504998846,27cyclictest101ktimersoftd/008:36:020
1504998757,13cyclictest101ktimersoftd/007:17:120
1504998748,26cyclictest3650irq/20-4900000010:10:430
1504998746,28cyclictest9498-21cmp11:55:120
150499874,15cyclictest2617-21apt-get11:32:110
1504998740,12cyclictest13294-21tr07:55:170
1504998737,31cyclictest17731-21ntp_states10:20:430
1504998734,17cyclictest18110-21runrttasks12:27:540
1504998722,31cyclictest787-21haveged07:30:040
1504998647,28cyclictest0-21swapper/012:10:220
1504998626,44cyclictest32246-21runrttasks11:17:420
1504998560,11cyclictest101ktimersoftd/008:40:400
1504998539,31cyclictest10028-21runrttasks07:40:450
1504998533,33cyclictest6298-21runrttasks11:41:190
1504998523,27cyclictest787-21haveged10:35:070
1504998510,35cyclictest16825-21apt-get10:17:020
230782845,11sleep021811-21apt-get08:32:000
1504998452,15cyclictest10150irq/55-4a10000009:55:440
1504998448,26cyclictest0-21swapper/011:20:210
1504998427,27cyclictest8465-21ntpq11:50:370
1504998417,28cyclictest1408-21nginx07:39:400
1504998362,13cyclictest101ktimersoftd/011:00:410
1504998352,14cyclictest10150irq/55-4a10000009:45:210
1504998344,21cyclictest754-21systemd-journal11:40:030
165942825,64sleep016608-21users12:20:500
1504998254,12cyclictest101ktimersoftd/009:17:050
1504998253,14cyclictest10150irq/55-4a10000008:20:260
1504998247,25cyclictest0-21swapper/007:45:200
1504998233,36cyclictest214362chrt08:26:520
150499818,20cyclictest22895-21df_inode10:40:210
1504998151,14cyclictest10150irq/55-4a10000008:50:220
1504998151,13cyclictest10150irq/55-4a10000011:10:220
1504998147,22cyclictest101ktimersoftd/007:50:170
1504998145,18cyclictest10150irq/55-4a10000008:10:250
1504998120,16cyclictest5979-21latency_hist09:35:040
1504998063,9cyclictest101ktimersoftd/009:00:250
1504998047,14cyclictest10150irq/55-4a10000008:45:190
1504998046,25cyclictest0-21swapper/012:05:290
1504998032,37cyclictest2830-21runrttasks09:20:430
150499799,35cyclictest1305-21snmpd09:10:010
1504997849,13cyclictest10150irq/55-4a10000007:30:210
1504997848,15cyclictest10150irq/55-4a10000010:28:030
1504997848,13cyclictest10150irq/55-4a10000011:30:030
1504997847,14cyclictest10150irq/55-4a10000009:00:000
1504997758,11cyclictest101ktimersoftd/009:10:200
1504997751,11cyclictest101ktimersoftd/012:30:550
1504997749,12cyclictest101ktimersoftd/009:25:290
1504997748,13cyclictest13835-21cat10:05:300
1504997748,13cyclictest10150irq/55-4a10000011:45:240
150499767,21cyclictest15907-21diskstats08:05:230
150499767,19cyclictest7475-21grep09:40:150
1504997352,11cyclictest101ktimersoftd/009:50:230
1504997345,20cyclictest12727-21runrttasks10:00:390
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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