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2026-03-12 - 22:06
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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 Thu Mar 12, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74509440,0irq/46-4a10000032393-1kworker/u3:207:05:580
8429910172,0cyclictest10827-21aten_r4power_cu09:11:570
842999970,0cyclictest7941-21irqstats10:37:250
842999775,0cyclictest15583-21runrttasks07:50:060
842999679,0cyclictest1110-21/usr/sbin/munin07:07:020
842999675,0cyclictest3407-21runrttasks08:48:090
842999574,0cyclictest18807-21runrttasks09:33:230
842999475,0cyclictest22664-21modprobe11:21:480
842999459,0cyclictest11025-21/usr/sbin/munin10:47:040
842999376,0cyclictest16325-1kworker/u3:009:27:440
842999374,0cyclictest9482-21fschecks_count12:17:160
842999372,0cyclictest8690-21runrttasks07:29:330
842999372,0cyclictest6943-21runrttasks10:34:090
842999371,0cyclictest7131-21runrttasks07:25:430
842999371,0cyclictest337-21runrttasks08:41:060
842999367,0cyclictest16559-21memory11:02:310
842999275,0cyclictest14851-21meminfo09:22:300
842999273,0cyclictest20239-21mailstats08:02:420
842999271,0cyclictest21682-21/usr/sbin/munin08:07:320
842999271,0cyclictest1928-21runrttasks08:45:020
842999270,0cyclictest9124-21runrttasks10:41:580
842999172,0cyclictest26221-21aten_r4power_cu08:21:590
842999171,0cyclictest19973-21/usr/sbin/munin09:37:290
842999169,0cyclictest30292-21ntp_offset10:07:350
842999166,0cyclictest30366-21ps08:32:400
842999162,0cyclictest23734-21threads11:22:440
842999162,0cyclictest0-21swapper08:57:400
842999158,0cyclictest0-21swapper08:12:150
842999158,0cyclictest0-21swapper07:37:400
842999072,0cyclictest6763-21users12:07:480
842999072,0cyclictest10843-21aten_r4power_cu12:21:580
842999070,0cyclictest8535-21runrttasks12:13:130
842999070,0cyclictest3346-1kworker/u3:207:14:200
842999070,0cyclictest18447-21processes11:07:380
842999069,0cyclictest28203-21df_inode10:02:090
842999068,0cyclictest5075-21users07:17:530
842999062,0cyclictest0-21swapper12:00:430
842999057,0cyclictest0-21swapper08:27:250
842998970,0cyclictest27403-21seq11:33:480
842998962,0cyclictest27080-21grep09:57:430
842998962,0cyclictest0-21swapper11:30:130
842998958,0cyclictest0-21swapper11:47:420
842998958,0cyclictest0-21swapper09:42:380
842998958,0cyclictest0-21swapper08:17:370
842998957,0cyclictest0-21swapper07:32:440
842998956,0cyclictest0-21swapper08:52:410
842998955,0cyclictest13175-21runrttasks07:42:330
842998872,0cyclictest4942-21timerandwakeup10:27:450
842998870,0cyclictest12607-21aten_r4power_po09:17:000
842998869,0cyclictest13951-21seq12:30:360
842998866,0cyclictest9632-21irqstats09:07:250
842998865,0cyclictest4707-21ntp_states12:02:400
842998865,0cyclictest0-21swapper11:37:130
842998863,0cyclictest783-21df11:52:070
842998861,0cyclictest2292-21/usr/sbin/munin10:22:400
842998858,0cyclictest22989-21/usr/sbin/munin09:47:060
842998855,0cyclictest0-21swapper11:42:060
842998770,0cyclictest31513-21/usr/sbin/munin10:12:030
842998768,0cyclictest745-21cpuspeed10:17:020
842998767,0cyclictest14766-21irqstats10:57:230
842998764,0cyclictest17981-21/usr/sbin/munin07:57:130
842998763,0cyclictest25093-21memory09:52:330
842998755,0cyclictest0-21swapper09:02:130
842998670,0cyclictest16419-21if_err_eth007:52:220
842998567,0cyclictest12591-21aten_r4power_po10:52:000
842998564,0cyclictest19812-21fw_forwarded_lo11:12:210
842998554,0cyclictest14547-21df_inode12:32:100
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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