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2025-09-13 - 08:52
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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 Sat Sep 13, 2025 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502980,0irq/46-4a10000012-21ksoftirqd/019:05:200
7450930,0irq/46-4a1000003916-21chrt00:18:040
7450920,0irq/46-4a1000007013-21fw_forwarded_lo22:52:510
7450920,0irq/46-4a10000030469-21cstates19:17:350
7450920,0irq/46-4a10000023158-21runrttasks20:30:420
7450920,0irq/46-4a10000021443-21sshd20:25:370
7450920,0irq/46-4a10000012121-21memory19:58:030
7450910,0irq/46-4a1000006388-21cron22:52:110
7450910,0irq/46-4a1000005510-21/usr/sbin/munin21:13:580
7450910,0irq/46-4a10000026623-21runrttasks20:40:490
7450910,0irq/46-4a10000023783-21aten_r4power_po23:42:310
7450910,0irq/46-4a10000021961-21aten_r4power_po22:02:310
7450910,0irq/46-4a10000015954-21swap21:43:210
7450910,0irq/46-4a10000014469-21runrttasks21:39:220
7450910,0irq/46-4a1000001438-21df19:27:380
7450910,0irq/46-4a10000012153-21fw_forwarded_lo23:07:490
3103129113,0sleep031033-21fw_conntrack00:02:490
7450900,0irq/46-4a1000009071-21grep19:48:170
7450900,0irq/46-4a1000006801-21diskstats21:17:460
7450900,0irq/46-4a1000003497-21fw_conntrack21:07:480
7450900,0irq/46-4a10000031251-21/usr/sbin/munin22:29:020
7450900,0irq/46-4a1000003001-21munin-plugin-st22:42:120
7450900,0irq/46-4a10000027004-21runrttasks23:52:130
7450900,0irq/46-4a10000022494-21cat23:37:530
7450900,0irq/46-4a10000021756-21chrt23:36:370
7450900,0irq/46-4a1000001903-21fschecks_count00:12:460
7450900,0irq/46-4a10000018747-21df_inode21:52:380
7450900,0irq/46-4a10000012223-21/usr/sbin/munin21:33:060
7450900,0irq/46-4a10000010643-21sendmail_mailtr19:53:150
7450890,0irq/46-4a1000009065-21ntpq00:33:060
7450890,0irq/46-4a1000007176-21/usr/sbin/munin00:27:540
7450890,0irq/46-4a1000005190-21irqstats19:37:550
7450890,0irq/46-4a100000439-21snmpd21:27:390
7450890,0irq/46-4a100000439-21snmpd19:11:310
7450890,0irq/46-4a10000031942-21idleruntime-cro20:57:130
7450890,0irq/46-4a10000029643-21grep20:48:180
7450890,0irq/46-4a10000028585-21runrttasks23:56:210
7450890,0irq/46-4a10000027358-21diskstats22:17:400
7450890,0irq/46-4a10000024614-21runrttasks22:08:150
7450890,0irq/46-4a1000001991-21kworker/u2:719:42:190
7450890,0irq/46-4a10000017907-21seq20:14:470
7450890,0irq/46-4a10000014475-21users23:13:180
7450880,0irq/46-4a1000008574-21cut21:22:490
7450880,0irq/46-4a1000004482-21chrt22:45:300
7450880,0irq/46-4a10000030320-21runrttasks00:01:250
7450880,0irq/46-4a1000002067-21/usr/sbin/munin21:03:080
7450880,0irq/46-4a10000016719-21latency_hist23:22:150
7450880,0irq/46-4a10000013417-21cstates20:02:350
7450880,0irq/46-4a10000010447-21fw_conntrack23:02:500
7450870,0irq/46-4a1000008672-21cut22:57:460
7450870,0irq/46-4a1000004615-1kworker/u3:100:24:080
7450870,0irq/46-4a10000029075-21diskstats22:22:420
7450870,0irq/46-4a10000026887-21sh22:17:120
7450870,0irq/46-4a10000024152-21awk20:33:040
7450870,0irq/46-4a10000015386-21fw_forwarded_lo20:07:520
7450860,0irq/46-4a1000004416-21runrttasks19:36:390
7450860,0irq/46-4a10000032477-21diskstats22:32:440
7450860,0irq/46-4a10000027305-21grep20:42:440
7450860,0irq/46-4a10000021281-21runrttasks21:58:310
7450860,0irq/46-4a10000019627-21users23:28:190
7450860,0irq/46-4a10000017048-1kworker/u3:121:50:040
7350860,0irq/45-4a100000198302sleep020:21:260
1687428610,0sleep016913-21aten_r4power_en23:22:290
7450850,0irq/46-4a100000496-21wc19:23:160
7450850,0irq/46-4a10000029263-21ntp_states19:13:260
7450850,0irq/46-4a10000023556-21kworker/u2:100:07:160
7450840,0irq/46-4a10000032302-21expr20:57:360
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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