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2026-03-16 - 05:27
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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 Mon Mar 16, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502550,0irq/46-4a1000003808-1kworker/u3:119:05:210
7350930,0irq/45-4a10000030212-21df_inode23:27:000
39862930,0sleep03195-1kworker/u3:223:45:180
7450920,0irq/46-4a10000021998-21sshd21:27:330
7450920,0irq/46-4a10000011950-21awk22:32:310
58632920,0sleep04098-1kworker/u3:222:16:400
7450910,0irq/46-4a1000009732-21/usr/sbin/munin22:27:050
7450910,0irq/46-4a1000008552-21sendmail_mailst22:22:330
7450910,0irq/46-4a1000006365-21fschecks_count20:42:070
7450910,0irq/46-4a10000028806-21memory20:12:240
7450910,0irq/46-4a10000020743-21users22:57:410
7450910,0irq/46-4a10000016894-21ls19:37:240
7450900,0irq/46-4a1000006630-21runrttasks19:08:530
7450900,0irq/46-4a10000025324-21/usr/sbin/munin20:02:180
7450900,0irq/46-4a10000018510-21/usr/sbin/munin22:52:180
7450900,0irq/46-4a10000017672-1kworker/u3:000:29:220
7450900,0irq/46-4a10000013663-21find21:02:330
7450900,0irq/46-4a10000013056-21df_abs19:26:590
7450890,0irq/46-4a1000009668-21df_abs00:01:580
7450890,0irq/46-4a1000009075-1kworker/u3:220:52:330
7450890,0irq/46-4a100000886-21/usr/sbin/munin23:37:070
7450890,0irq/46-4a1000007326-1kworker/u3:022:19:580
7450890,0irq/46-4a1000004743-21fw_forwarded_lo23:47:130
7450890,0irq/46-4a10000030262-1kworker/u3:220:24:270
7450890,0irq/46-4a10000028463-21df_abs21:46:590
7450890,0irq/46-4a1000002563-21date20:31:460
7450890,0irq/46-4a10000021801-21perl23:02:090
7450890,0irq/46-4a10000020482-21processes21:22:340
7450890,0irq/46-4a10000016549-21df_abs00:22:000
7450890,0irq/46-4a10000012233-21runrttasks19:22:490
7450880,0irq/46-4a1000009949-21runrttasks19:17:150
7450880,0irq/46-4a1000008402-21/usr/sbin/munin19:12:470
7450880,0irq/46-4a1000008402-21ntp_states20:47:300
7450880,0irq/46-4a1000007734-21/usr/sbin/munin23:57:160
7450880,0irq/46-4a10000032471-21sendmail_mailst21:57:380
7450880,0irq/46-4a10000030246-21awk21:52:080
7450880,0irq/46-4a10000028111-21cut20:11:430
7450880,0irq/46-4a1000002750-21/usr/sbin/munin22:06:540
7450880,0irq/46-4a10000026602-21wget23:16:520
7450880,0irq/46-4a10000025023-21/usr/sbin/munin21:36:580
7450880,0irq/46-4a10000024844-21wget23:11:510
7450880,0irq/46-4a10000023954-21which19:57:350
7450880,0irq/46-4a10000023082-21/usr/sbin/munin21:32:060
7450880,0irq/46-4a10000021887-21irqstats19:52:160
7450880,0irq/46-4a10000020215-21kernelversion00:32:190
7450880,0irq/46-4a10000019232-1kworker/u3:021:19:440
7450880,0irq/46-4a10000018615-21/usr/sbin/munin19:42:250
7450880,0irq/46-4a10000017714-21seq22:50:530
7450880,0irq/46-4a10000015337-21/usr/sbin/munin19:32:320
7450880,0irq/46-4a10000015208-21ntp_kernel_pll_21:07:270
7450880,0irq/46-4a10000013240-21fschecks_time22:37:080
7450880,0irq/46-4a10000011652-21/usr/sbin/munin20:57:140
7450870,0irq/46-4a1000004825-21/usr/sbin/munin20:37:170
7450870,0irq/46-4a10000028925-21ntp_states23:22:300
7450870,0irq/46-4a10000023489-21tune2fs23:07:080
7450870,0irq/46-4a1000001924-21unixbench_singl20:27:400
7450870,0irq/46-4a10000014988-21tune2fs22:42:070
7450870,0irq/46-4a10000013285-1kworker/u3:200:12:560
7450860,0irq/46-4a1000006165-21egrep23:51:550
7450860,0irq/46-4a10000031836-21/usr/sbin/munin23:31:580
7450860,0irq/46-4a10000030410-21/usr/sbin/munin20:17:160
7450860,0irq/46-4a10000027701-21chrt21:43:350
7450860,0irq/46-4a10000020325-21ntpq19:47:270
7450860,0irq/46-4a10000016957-21awk21:12:330
7450860,0irq/46-4a1000001271-21fschecks_time22:02:070
7450860,0irq/46-4a10000012060-21ls00:07:380
7450850,0irq/46-4a10000015008-21fw_conntrack00:17:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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