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2025-11-27 - 15:44
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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 Nov 27, 2025 12:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
73502650,0irq/45-4a10000018681-21kworker/0:007:06:360
7450940,0irq/46-4a1000009684-21chrt09:33:160
7450940,0irq/46-4a1000007291-21sensors09:25:040
7450940,0irq/46-4a1000005256-21zcat07:44:020
7450940,0irq/46-4a10000030048-21sshd07:23:150
7450940,0irq/46-4a10000028890-21seq12:03:270
7450940,0irq/46-4a1000002600-21sendmail-msp07:38:060
7450940,0irq/46-4a10000023756-21fschecks_time08:39:000
283442949,0sleep028330-21apt-get07:18:200
7450930,0irq/46-4a1000003190-21seq09:13:530
7450930,0irq/46-4a10000029142-21runrttasks08:53:580
7450930,0irq/46-4a10000025622-21if_err_eth010:18:440
7450930,0irq/46-4a10000024167-21ps10:14:030
7450930,0irq/46-4a10000022351-21ntp_kernel_err10:08:580
7450930,0irq/46-4a10000022133-21chrt11:43:370
7450930,0irq/46-4a10000015167-21fw_conntrack08:13:410
24177999356,0cyclictest0-21swapper07:28:520
24177999353,0cyclictest0-21swapper10:54:270
7450920,0irq/46-4a1000004798-21df09:18:310
7450920,0irq/46-4a1000003045-21/usr/sbin/munin07:38:350
7450920,0irq/46-4a1000002930-21/usr/sbin/munin10:49:100
7450920,0irq/46-4a10000027413-21if_err_eth010:24:170
7450920,0irq/46-4a10000020850-21ntpq11:39:450
7450920,0irq/46-4a10000018265-21sshd09:58:150
7450920,0irq/46-4a10000018030-21chrt11:31:320
7450920,0irq/46-4a10000015485-21irqstats11:23:500
7450920,0irq/46-4a10000013882-21mailstats08:09:030
7450920,0irq/46-4a10000013550-21chrt11:18:330
7450920,0irq/46-4a10000013112-21/usr/sbin/munin09:44:060
7350920,0irq/45-4a10000031531-1kworker/u3:210:35:420
24177999257,0cyclictest0-21swapper07:58:350
7450910,0irq/46-4a1000007966-21/usr/sbin/munin09:28:480
7450910,0irq/46-4a1000007952-21/usr/sbin/munin11:03:060
7450910,0irq/46-4a1000004768-21apt12:28:140
7450910,0irq/46-4a10000032728-21proc_pri10:39:000
7450910,0irq/46-4a10000030156-21/usr/sbin/munin08:58:310
7450910,0irq/46-4a1000002828-21grep10:48:060
7450910,0irq/46-4a10000027563-21/usr/sbin/munin07:14:290
7450910,0irq/46-4a10000023972-21fw_forwarded_lo11:48:410
7450910,0irq/46-4a10000016148-1kworker/u3:009:53:150
7450910,0irq/46-4a1000001462-21fschecks_count09:08:360
7350910,0irq/45-4a100000791-1kworker/u3:009:07:540
24177999169,0cyclictest0-21swapper11:13:390
7450900,0irq/46-4a1000003386-21diskstats12:23:310
7450900,0irq/46-4a10000032629-21/usr/sbin/munin12:13:480
7450900,0irq/46-4a10000031561-21chrt12:10:020
7450900,0irq/46-4a10000029162-21memory10:28:550
7450900,0irq/46-4a10000027044-21diskstats08:48:330
7450900,0irq/46-4a10000025787-21irqstats11:54:010
7450900,0irq/46-4a10000025155-21wget08:43:290
7450900,0irq/46-4a10000012885-1kworker/u3:011:34:280
7450900,0irq/46-4a10000012788-21chrt09:41:350
7350900,0irq/45-4a10000010998-1kworker/u3:108:05:220
24177999057,0cyclictest0-21swapper12:19:210
24177999056,0cyclictest0-21swapper11:58:300
7450890,0irq/46-4a1000008541-21fw_conntrack11:03:410
7450890,0irq/46-4a1000006749-21seq07:48:530
7450890,0irq/46-4a1000006493-21chrt12:33:170
7450890,0irq/46-4a10000024306-21runrttasks07:08:200
7450890,0irq/46-4a10000022596-21/usr/sbin/munin08:34:050
7450890,0irq/46-4a10000021075-21chrt10:04:230
7450890,0irq/46-4a10000019862-21chrt08:28:140
7450890,0irq/46-4a10000014946-21grep09:48:240
7450890,0irq/46-4a10000010647-21sendmail_mailtr11:09:030
7450880,0irq/46-4a1000008076-21runrttasks07:53:270
7450880,0irq/46-4a10000018801-21wc08:23:530
7450880,0irq/46-4a10000017037-21latency08:18:460
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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