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2026-07-13 - 06:35
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 50 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 rack4slot2.osadl.org (updated Mon Jul 13, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
73508700,0irq/45-4a100000156222sleep019:08:210
157449912550,0cyclictest7350irq/45-4a10000023:09:150
157449912535,0cyclictest20248-21grep00:04:240
157449912339,0cyclictest30420-21/usr/sbin/munin19:49:200
157449912233,0cyclictest16335-21munin-run20:43:570
157449912135,0cyclictest29542-21runrttasks21:20:230
157449912132,0cyclictest8033-21/usr/sbin/munin20:19:110
157449912131,0cyclictest18000-21munin-node19:14:170
157449912131,0cyclictest11776-21chrt23:39:330
157449912040,0cyclictest8142-21df_abs21:54:160
157449912040,0cyclictest4721-21df_abs23:19:160
157449912040,0cyclictest0-21swapper20:48:110
157449912038,0cyclictest8338-21runrttasks23:29:270
157449912034,0cyclictest29991-21sendmail-msp22:58:590
157449912033,0cyclictest23259-21latency_hist19:29:000
157449912033,0cyclictest22182-21meminfo20:59:430
157449911942,0cyclictest0-21swapper19:22:360
157449911939,0cyclictest7554-21runrttasks21:52:230
157449911933,0cyclictest29928-21chrt19:48:360
157449911933,0cyclictest18186-21aten_r4power_cu23:59:080
157449911931,0cyclictest2671-21sendmail-msp21:39:000
157449911839,0cyclictest9781-21cstates23:34:130
157449911832,0cyclictest5088-21memory20:09:410
157449911832,0cyclictest3249-21/usr/sbin/munin20:04:320
157449911832,0cyclictest21747-21cstates22:34:120
157449911830,0cyclictest28085-21chrt22:52:410
157449911828,0cyclictest1293-21runrttasks19:59:140
157449911812,0cyclictest26994-21diskstats21:14:200
157449911812,0cyclictest11700-21fschecks_time20:29:240
157449911743,0cyclictest15781-21/usr/sbin/munin22:14:540
157449911740,0cyclictest24514-21runrttasks21:06:120
157449911728,0cyclictest20502-21runrttasks20:54:430
157449911638,0cyclictest3662-21/usr/sbin/munin23:15:000
157449911631,0cyclictest16742-21chrt23:54:210
157449911630,0cyclictest963-21sendmail-msp19:59:020
157449911630,0cyclictest14352-21runrttasks20:37:010
157449911626,0cyclictest6860-21/usr/sbin/munin23:24:470
157449911541,0cyclictest21938-21/usr/sbin/munin19:24:220
157449911534,0cyclictest28413-21aten_r4power_cu00:29:080
157449911533,0cyclictest23475-21expr00:14:120
157449911532,0cyclictest14710-21seq23:49:030
157449911531,0cyclictest6497-21diskstats20:14:210
157449911531,0cyclictest25494-21/usr/sbin/munin19:34:310
157449911529,0cyclictest306-21timerandwakeup23:04:550
157449911528,0cyclictest3683-21sensors_temp21:40:030
157449911528,0cyclictest31030-21/usr/sbin/munin23:00:040
157449911511,0cyclictest24233-21threads22:40:040
157449911511,0cyclictest18460-21diskstats20:49:200
157449911511,0cyclictest13209-21cstates22:09:140
157449911445,0cyclictest0-21swapper22:33:540
157449911432,0cyclictest13194-21seq23:44:110
157449911429,0cyclictest28163-21runrttasks19:43:050
157449911429,0cyclictest16464-21chrt19:09:410
157449911428,0cyclictest31541-21seq21:27:490
157449911418,0cyclictest26049-21users21:10:000
157449911411,0cyclictest25158-21cpu00:19:120
157449911336,0cyclictest25008-21aten_r4power_cu22:44:060
157449911329,0cyclictest9913-21chrt21:59:190
157449911327,0cyclictest5798-21seq21:46:530
157449911312,0cyclictest16920-21/usr/sbin/munin22:19:360
157449911312,0cyclictest11024-21seq20:27:380
157449911233,0cyclictest30914-21gzip00:34:510
157449911233,0cyclictest19731-21munin-plugin-st22:28:570
157449911214,0cyclictest12177-21seq22:04:520
157449911210,0cyclictest27502-21awk00:24:480
157449911126,0cyclictest759-1kworker/u3:121:33:000
157449911126,0cyclictest23073-21seq00:13:350
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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