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2026-04-14 - 22:45
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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 Tue Apr 14, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74508530,0irq/46-4a10000012-21ksoftirqd/007:04:090
7450950,0irq/46-4a10000028022-21chrt09:25:580
12609999573,0cyclictest0-21swapper12:01:240
7450940,0irq/46-4a10000014749-21fw_conntrack07:10:530
7450940,0irq/46-4a10000011454-21mailstats11:46:260
154432940,0sleep013713-1kworker/u3:110:24:090
7450930,0irq/46-4a10000025193-21seq10:51:280
7450930,0irq/46-4a10000023122-21irqstats07:36:110
7450930,0irq/46-4a10000021597-21open_inodes09:06:230
7450930,0irq/46-4a10000019384-21df09:00:500
7450930,0irq/46-4a10000019271-21aten_r4power_vo10:35:470
7450930,0irq/46-4a1000001856-21chrt08:09:590
7450930,0irq/46-4a10000017877-21tune2fs07:21:010
7450930,0irq/46-4a10000014577-21irqstats11:56:080
7450930,0irq/46-4a10000012629-21df_abs10:15:510
7350930,0irq/45-4a1000005005-1kworker/u3:111:28:590
7450920,0irq/46-4a1000005909-21fschecks_time09:56:030
7450920,0irq/46-4a10000031891-21/usr/sbin/munin09:36:250
7450920,0irq/46-4a10000026240-21df_abs10:55:510
7450920,0irq/46-4a10000023276-21ntp_states10:46:200
7450920,0irq/46-4a10000020676-1kworker/u3:112:18:160
7450920,0irq/46-4a10000020438-1kworker/u3:207:33:000
7450920,0irq/46-4a10000018013-21latency12:06:110
7450920,0irq/46-4a10000017675-21df_abs10:30:510
7450920,0irq/46-4a10000014341-21runrttasks08:45:530
7450920,0irq/46-4a10000012656-21diskstats08:40:560
272122920,0chrt26007-1kworker/u3:012:32:370
1651929210,0sleep016572-21rt-features07:16:250
12609999259,0cyclictest0-21swapper10:40:470
7450910,0irq/46-4a1000009323-21runrttasks10:06:010
7450910,0irq/46-4a1000007443-21df_abs08:25:530
7450910,0irq/46-4a1000005697-21cstates08:20:460
7450910,0irq/46-4a1000005607-21aten_r4power_vo11:30:490
7450910,0irq/46-4a10000029311-21sendmail-msp07:55:350
7450910,0irq/46-4a1000002799-21sh11:21:230
7450910,0irq/46-4a1000002676-21meminfo09:46:140
7450910,0irq/46-4a1000002547-21sshd08:11:090
7450910,0irq/46-4a10000020725-21cron12:15:320
7450910,0irq/46-4a10000016204-21fw_conntrack10:26:050
7450910,0irq/46-4a10000015963-21df08:50:520
7450910,0irq/46-4a10000013801-21runrttasks11:54:480
7450910,0irq/46-4a10000011344-21/usr/sbin/munin10:11:230
74442918,0sleep07227-21/usr/sbin/munin11:35:540
7450900,0irq/46-4a1000009833-21swap11:41:290
7450900,0irq/46-4a100000854-21fw_forwarded_lo11:16:090
7450900,0irq/46-4a1000005339-21cron09:55:330
7450900,0irq/46-4a10000031488-21fschecks_count08:00:590
7450900,0irq/46-4a10000030802-21seq11:09:080
7450900,0irq/46-4a10000029949-21irqstats09:31:130
7450900,0irq/46-4a10000029793-21grep07:56:010
7450900,0irq/46-4a10000027184-1kworker/u3:109:25:100
7450900,0irq/46-4a10000027107-21chrt07:46:450
7450900,0irq/46-4a10000025874-21idleruntime-cro12:30:330
7450900,0irq/46-4a10000025052-21awk09:16:250
7350900,0irq/45-4a100000484-21runrttasks08:18:390
12609999056,0cyclictest0-21swapper07:26:150
12609999055,0cyclictest0-21swapper07:41:130
7450890,0irq/46-4a1000009298-21fschecks_time08:31:010
7450890,0irq/46-4a10000031433-21diskstats11:10:570
7450890,0irq/46-4a10000027731-21/usr/sbin/munin11:00:420
7450890,0irq/46-4a10000022901-21sh12:20:530
7450890,0irq/46-4a10000012826-21aten_r4power_vo07:05:450
7450890,0irq/46-4a10000011497-21awk08:36:270
7450890,0irq/46-4a1000001057-21ntp_kernel_pll_09:41:210
7350890,0irq/45-4a10000023103-21irqstats09:11:110
7450880,0irq/46-4a1000007321-21wget10:00:450
7450880,0irq/46-4a10000017462-21chrt08:55:390
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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