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2026-04-20 - 04:56
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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 Sun Apr 19, 2026 14:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
24459223437,63sleep00-21swapper/007:08:260
2471099136112,14cyclictest0-21swapper/007:10:030
2467421119,13sleep024661-21apt-get09:17:070
5038211012,12sleep05034-21users10:06:400
33821095,11sleep0380-21grep07:40:450
313621095,13sleep03162-21/usr/sbin/munin10:00:440
1411921075,11sleep014122-21df08:35:190
2182321065,15sleep021857-21proc_pri09:05:440
18603210611,12sleep018606-21df_inode11:00:160
3052321055,11sleep030524-21ntp_states09:40:370
247109910345,18cyclictest1602-21/usr/sbin/munin12:00:320
2114821025,13sleep021149-21fw_forwarded_lo11:10:380
12030210113,11sleep012031-21fw_forwarded_lo10:35:280
883521006,11sleep08594-1kworker/0:3H10:21:590
801521009,11sleep024701-21cyclictest08:10:340
247109910037,42cyclictest0-21swapper/011:06:570
302792986,12sleep030281-21fw_conntrack11:45:430
192032985,15sleep019212-21memory08:55:310
294872975,11sleep029488-21users09:35:500
223402966,11sleep022341-21diskstats11:15:240
110822965,11sleep011083-21diskstats12:35:240
301912945,74sleep030216-21proc_pri07:30:440
75022935,11sleep06216-21apt-get12:22:060
50342925,73sleep05037-21df_inode08:00:170
24710999029,26cyclictest0-21swapper/011:27:000
24710998934,36cyclictest29622-21apt-config11:45:080
24710998831,20cyclictest17453-21runrttasks10:55:280
319452875,8sleep00-21swapper/011:51:290
2471099879,19cyclictest14535-21apt-config10:45:150
24710998732,35cyclictest3921-21cut12:10:150
24710998660,11cyclictest101ktimersoftd/008:05:580
24710998622,30cyclictest787-21haveged09:05:040
24710998553,15cyclictest10150irq/55-4a10000012:15:550
24710998536,15cyclictest10250irq/56-4a10000007:49:510
24710998434,17cyclictest11436-21runrttasks10:33:010
24710998429,36cyclictest28713-21sort07:25:160
24710998421,28cyclictest7939-21latency_hist10:20:050
24710998359,10cyclictest101ktimersoftd/007:15:200
24710998351,16cyclictest31009-21runrttasks07:35:050
24710998346,31cyclictest10424-21seq08:20:220
24710998342,28cyclictest3650irq/20-4900000009:20:390
24710998335,14cyclictest10250irq/56-4a10000012:05:300
24710998251,15cyclictest10150irq/55-4a10000012:25:360
24710998236,28cyclictest31391-21basename09:45:140
24710998221,16cyclictest24524-21latency_hist11:25:020
24710998115,51cyclictest10250irq/56-4a10000009:27:320
24710998063,10cyclictest101ktimersoftd/011:55:510
24710998050,12cyclictest10150irq/55-4a10000009:55:300
24710998048,16cyclictest10150irq/55-4a10000010:40:410
24710998046,15cyclictest10150irq/55-4a10000011:35:490
24710998028,15cyclictest23113-21processes09:10:440
24710998020,16cyclictest9844-21diskstats12:30:250
24710997960,11cyclictest101ktimersoftd/011:35:020
24710997913,24cyclictest27300-21/usr/sbin/munin07:20:500
24710997850,19cyclictest18277-21/usr/sbin/munin08:50:490
24710997848,21cyclictest497-21runrttasks09:50:360
24710997830,31cyclictest3650irq/20-4900000007:55:180
2471099776,19cyclictest1480-21munin-node08:40:120
24710997750,11cyclictest0-21swapper/008:26:190
24710997747,13cyclictest10150irq/55-4a10000010:50:380
24710997746,14cyclictest10150irq/55-4a10000008:31:520
24710997730,32cyclictest101ktimersoftd/008:15:340
24710997656,12cyclictest101ktimersoftd/010:10:330
24710997531,29cyclictest10250irq/56-4a10000010:25:100
24710997528,13cyclictest1276-21runrttasks08:47:040
24710997444,14cyclictest10150irq/55-4a10000007:50:180
24710997344,13cyclictest10150irq/55-4a10000009:30:430
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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