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2026-04-02 - 12:37
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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 100 highest latencies:
System rack4slot2.osadl.org (updated Thu Apr 02, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502530,0irq/46-4a10000030205-1kworker/u3:219:05:050
7450970,0irq/46-4a10000027364-21/usr/sbin/munin22:01:560
7450960,0irq/46-4a1000006213-21aten_r4power_vo00:11:150
7450950,0irq/46-4a1000009843-21entropy21:11:290
7450950,0irq/46-4a10000028341-21aten_r4power_en22:06:120
7450950,0irq/46-4a10000025980-21seq21:57:020
7450950,0irq/46-4a10000020278-21if_eth020:06:360
7450950,0irq/46-4a10000017234-21grep21:31:560
7450950,0irq/46-4a10000015295-21nfs4_client19:51:470
194892950,0sleep018586-1kworker/u3:120:04:500
7450940,0irq/46-4a100000995-21runrttasks20:46:110
7450940,0irq/46-4a1000009174-1kworker/u3:219:36:540
7450940,0irq/46-4a10000031110-21runrttasks20:37:010
7450940,0irq/46-4a10000029663-21sshd20:34:160
7450940,0irq/46-4a10000024917-21/usr/sbin/munin20:21:420
7450940,0irq/46-4a10000020373-21latency23:16:400
7450940,0irq/46-4a10000011759-21/usr/sbin/munin22:51:400
7450930,0irq/46-4a1000008420-21meminfo21:06:440
7450930,0irq/46-4a100000552-1kworker/u3:023:56:540
7450930,0irq/46-4a1000005097-21ntp_offset00:06:480
7450930,0irq/46-4a1000004746-21runrttasks19:21:270
7450930,0irq/46-4a10000032217-21if_err_eth023:51:370
7450930,0irq/46-4a10000027285-21ntpq23:36:470
7450930,0irq/46-4a10000023677-21if_err_eth021:51:360
7450930,0irq/46-4a10000021980-21if_err_eth023:21:350
7450930,0irq/46-4a1000001666-21df_inode19:11:200
7450930,0irq/46-4a1000001252-1kworker/u3:219:19:470
288852930,0chrt26481-1kworker/u3:023:41:390
108492930,0chrt785-1kworker/u3:022:49:060
7450920,0irq/46-4a1000009361-21chrt00:20:410
7450920,0irq/46-4a1000008250-21fschecks_time22:41:310
7450920,0irq/46-4a1000007609-21chrt19:30:320
7450920,0irq/46-4a1000007499-1kworker/u3:221:04:400
7450920,0irq/46-4a1000005225-21grep20:56:550
7450920,0irq/46-4a100000361-21ntp_states19:06:510
7450920,0irq/46-4a1000003430-21/usr/sbin/munin20:51:530
7450920,0irq/46-4a1000003391-21ntpq22:26:500
7450920,0irq/46-4a10000032435-21ntpq22:16:500
7450920,0irq/46-4a10000031743-21/usr/sbin/munin20:41:390
7450920,0irq/46-4a10000030762-21/usr/sbin/munin22:11:540
7450920,0irq/46-4a10000027483-21awk20:26:590
7450920,0irq/46-4a10000021689-21df20:11:180
7450920,0irq/46-4a10000021595-21/usr/sbin/munin21:46:150
7450920,0irq/46-4a10000017596-21chrt19:58:160
7450920,0irq/46-4a10000016567-21df_abs23:06:190
7450920,0irq/46-4a10000014397-21runrttasks00:35:070
7450920,0irq/46-4a10000013638-21ntp_kernel_pll_21:21:510
7450920,0irq/46-4a10000013388-21fschecks_time22:56:320
7450920,0irq/46-4a10000011701-21fw_forwarded_lo00:26:350
7450920,0irq/46-4a10000010207-1kworker/u3:000:21:520
7450910,0irq/46-4a1000008522-21/usr/sbin/munin19:31:490
7450910,0irq/46-4a10000031396-21sshd23:49:270
7450910,0irq/46-4a1000002922-21df00:01:180
7450910,0irq/46-4a10000025134-21seq23:31:200
7450910,0irq/46-4a10000023491-21chrt23:26:230
7450910,0irq/46-4a10000020240-21runrttasks21:41:320
7450910,0irq/46-4a10000018401-21forks21:36:270
7450910,0irq/46-4a10000018058-21/usr/sbin/munin23:11:410
7450910,0irq/46-4a1000001641-21missed_timers22:21:460
7450910,0irq/46-4a10000013520-21latency19:46:430
7450910,0irq/46-4a10000012264-21grep19:42:000
7450910,0irq/46-4a10000011565-21chrt21:16:260
233952910,0sleep022574-1kworker/u3:220:16:170
7450900,0irq/46-4a1000006576-21fw_conntrack22:36:330
7450900,0irq/46-4a1000004833-21fschecks_time22:31:300
7450900,0irq/46-4a10000014838-21/usr/sbin/munin21:26:190
7450890,0irq/46-4a10000014633-21latency_hist23:01:060
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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