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2026-05-21 - 21:24
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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 highest latencies:
System rack4slot2.osadl.org (updated Thu May 21, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
745010710,0irq/46-4a1000006995-1kworker/u3:107:03:270
176339910269,0cyclictest0-21swapper11:29:400
176339910169,0cyclictest0-21swapper12:14:550
176339910065,0cyclictest0-21swapper08:34:430
17633999982,0cyclictest18265-21irqstats07:04:420
17633999980,0cyclictest3489-21irqstats11:04:410
17633999680,0cyclictest15364-21fw_conntrack10:04:350
17633999578,0cyclictest30816-21/usr/sbin/munin07:39:410
17633999576,0cyclictest2848-21munin-run09:29:070
17633999576,0cyclictest20530-21fw_conntrack07:09:560
17633999477,0cyclictest32101-21aten_r4power_po12:29:160
17633999477,0cyclictest27407-21irqstats09:04:430
17633999476,0cyclictest4886-21df07:59:220
17633999475,0cyclictest25489-21df_inode10:34:230
17633999474,0cyclictest20668-21meminfo10:19:460
17633999376,0cyclictest26340-21runrttasks07:25:480
17633999374,0cyclictest31530-21seq09:16:080
17633999374,0cyclictest29685-21users12:20:030
17633999274,0cyclictest18805-21chrt08:39:380
17633999174,0cyclictest7002-21memory09:39:510
17633999174,0cyclictest20521-21perl11:54:340
17633999174,0cyclictest18811-21fw_forwarded_lo11:49:380
17633999173,0cyclictest6385-21/usr/sbin/munin08:04:160
17633999171,0cyclictest21804-21cut08:49:160
17633999074,0cyclictest317-21processes09:19:560
17633999073,0cyclictest30315-21modprobe12:24:100
17633999073,0cyclictest25496-21df_inode12:09:280
17633999073,0cyclictest20730-21ntpq08:44:530
17633999073,0cyclictest14014-21awk08:24:580
17633999072,0cyclictest25783-21meminfo08:59:460
17633999071,0cyclictest8688-21meminfo09:44:470
17633999071,0cyclictest2835-21munin-run07:54:070
17633999071,0cyclictest23926-21fw_conntrack10:29:370
17633999071,0cyclictest10320-21irqstats09:49:410
17633999068,0cyclictest27354-21fw_forwarded_lo10:39:360
17633999067,0cyclictest15709-21grep11:39:590
17633998973,0cyclictest16925-21df_inode10:09:270
17633998973,0cyclictest10260-21fw_forwarded_lo11:24:360
17633998972,0cyclictest460-21snmpd11:21:440
17633998972,0cyclictest32661-21grep07:44:510
17633998972,0cyclictest18532-21/usr/sbin/munin10:14:210
17633998957,0cyclictest0-21swapper10:59:200
17633998957,0cyclictest0-21swapper10:54:510
17633998956,0cyclictest0-21swapper09:59:200
17633998956,0cyclictest0-21swapper08:19:540
17633998875,0cyclictest24296-21grep12:05:000
17633998873,0cyclictest22235-21fw_conntrack11:59:360
17633998868,0cyclictest484-21runrttasks07:55:110
17633998866,0cyclictest0-21swapper08:29:300
17633998865,0cyclictest28972-21fschecks_count07:34:320
17633998856,0cyclictest0-21swapper07:15:010
17633998853,0cyclictest0-21swapper07:29:130
17633998773,0cyclictest5201-21irqstats11:09:430
17633998772,0cyclictest24124-21/usr/sbin/munin08:54:500
17633998770,0cyclictest9851-21/usr/sbin/munin08:14:160
17633998769,0cyclictest29444-21sendmail_mailtr09:10:000
17633998766,0cyclictest24083-21memory07:19:480
17633998757,0cyclictest0-21swapper11:44:530
17633998756,0cyclictest0-21swapper08:09:410
17633998669,0cyclictest3491-21irqstats09:29:430
17633998669,0cyclictest30604-21df_inode10:49:250
17633998568,0cyclictest11831-21diskstats09:54:310
17633998553,0cyclictest0-21swapper10:44:270
17633998366,0cyclictest6438-21chrt11:14:160
17633998366,0cyclictest4891-21df09:34:200
17633998248,0cyclictest0-21swapper10:25:060
17633998160,0cyclictest0-21swapper11:34:390
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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