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2026-06-18 - 20:24
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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 792 highest latencies:
System rack4slot2.osadl.org (updated Thu Jun 18, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502480,0irq/46-4a1000002416-1kworker/u3:207:08:540
7450960,0irq/46-4a10000013471-21sendmail-msp07:39:580
7450950,0irq/46-4a1000002104-21if_err_eth008:40:330
7450950,0irq/46-4a10000010688-21interrupts07:30:330
7350950,0irq/45-4a1000007056-21modprobe07:20:190
7450940,0irq/46-4a100000736-21sendmail_mailst10:10:480
7450940,0irq/46-4a1000005516-21fw_forwarded_lo10:25:300
7450940,0irq/46-4a10000018615-21cat09:29:590
7450940,0irq/46-4a10000017283-21df_inode12:35:150
7450940,0irq/46-4a10000016739-21seq07:49:020
7450940,0irq/46-4a10000014276-21ntp_offset12:25:490
7450940,0irq/46-4a10000013894-21diskstats07:40:210
7450940,0irq/46-4a10000013683-21runrttasks10:50:090
7350940,0irq/45-4a1000006781-21/usr/sbin/munin08:55:070
7450930,0irq/46-4a100000438-21snmpd08:20:500
7450930,0irq/46-4a1000003781-21fw_conntrack08:45:250
7450930,0irq/46-4a10000030969-21df_inode11:40:200
7450930,0irq/46-4a10000028850-21sendmail-msp10:00:420
7450930,0irq/46-4a10000023207-21sshd11:16:040
7450930,0irq/46-4a10000019446-21proc_pri11:05:460
7450930,0irq/46-4a10000019304-21runrttasks07:55:390
7450930,0irq/46-4a10000016101-21/usr/sbin/munin10:55:540
7450930,0irq/46-4a1000001398-21seq11:49:160
7450930,0irq/46-4a10000010561-21fschecks_time09:05:220
7450920,0irq/46-4a1000005629-21ls12:00:400
7450920,0irq/46-4a1000004386-21users11:55:580
7450920,0irq/46-4a100000438-21snmpd08:05:400
7450920,0irq/46-4a1000003956-21meminfo10:20:420
7450920,0irq/46-4a10000026493-21/usr/sbin/munin09:50:520
7450920,0irq/46-4a10000023725-21sendmail-msp11:20:310
7450920,0irq/46-4a10000021194-21processes08:00:540
7450920,0irq/46-4a10000019760-21users09:30:570
7450920,0irq/46-4a1000001618-21/usr/sbin/munin11:50:520
7450920,0irq/46-4a10000013876-21/usr/sbin/munin09:15:190
7450920,0irq/46-4a10000010361-21df12:15:130
7450910,0irq/46-4a1000009322-21run-parts10:35:490
7450910,0irq/46-4a1000009303-21which07:25:520
7450910,0irq/46-4a1000008742-21df_inode12:10:170
7450910,0irq/46-4a1000008728-21sed09:00:150
7450910,0irq/46-4a1000007631-21sensors_temp12:05:500
7450910,0irq/46-4a1000006979-21sed10:30:130
7450910,0irq/46-4a100000438-21snmpd08:10:430
7450910,0irq/46-4a10000030963-21chrt08:30:180
7450910,0irq/46-4a10000030715-21aten_r4power_en10:05:070
7450910,0irq/46-4a10000024292-21chrt09:45:250
7450910,0irq/46-4a10000022599-21fw_forwarded_lo09:40:350
7450910,0irq/46-4a10000020475-21aten_r4power_po09:35:080
7450910,0irq/46-4a1000001829-21df10:15:130
7450910,0irq/46-4a10000017155-21/usr/sbin/munin07:50:110
7450910,0irq/46-4a10000012863-21runrttasks10:45:540
7450910,0irq/46-4a10000010270-21grep10:40:110
3605999157,0cyclictest0-21swapper11:10:370
7450900,0irq/46-4a1000006112-21seq07:15:550
7450900,0irq/46-4a10000032460-21aten_r4power_vo08:35:080
7450900,0irq/46-4a10000029768-21rt-features08:25:480
7450900,0irq/46-4a10000027691-21fw_conntrack11:30:260
7450900,0irq/46-4a10000017318-21runrttasks11:00:230
7450900,0irq/46-4a10000015602-21chrt09:20:200
7450900,0irq/46-4a10000013316-21runrttasks12:23:550
7450900,0irq/46-4a10000012060-21ls09:10:110
7450890,0irq/46-4a1000005152-21grep08:50:090
7450890,0irq/46-4a1000004005-21df_inode07:10:150
7450890,0irq/46-4a10000027515-21df_abs09:55:160
7450890,0irq/46-4a10000025824-21df_inode08:15:170
7450890,0irq/46-4a10000025662-21aten_r4power_vo11:25:090
7450890,0irq/46-4a10000015676-21fschecks_time12:30:220
7350890,0irq/45-4a10000030169-21sshd11:37:040
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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