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2025-12-06 - 06:54
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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 Sat Dec 06, 2025 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502780,0irq/46-4a10000036792sleep019:04:050
7450960,0irq/46-4a10000011762-21munin-run21:02:450
7450930,0irq/46-4a10000028113-21grep23:24:120
1245429310,0sleep012478-21perl22:38:230
7450920,0irq/46-4a1000003731-1kworker/u3:219:08:180
7450920,0irq/46-4a10000026136-21tune2fs23:18:190
7450910,0irq/46-4a100000644-21fw_conntrack23:38:510
7450910,0irq/46-4a1000002341-21ntp_kernel_pll_20:34:230
7450910,0irq/46-4a10000011877-21awk22:37:450
7450910,0irq/46-4a10000010716-21diskstats00:08:130
7350910,0irq/45-4a10000024840-21vmstat20:03:490
611929111,0sleep06167-21sed22:18:490
22952917,0sleep01827-21/usr/sbin/munin23:43:250
7450900,0irq/46-4a1000008939-1kworker/u3:219:29:350
7450900,0irq/46-4a100000673-21/usr/sbin/munin22:03:360
7450900,0irq/46-4a10000029433-21fw_forwarded_lo20:18:510
7450900,0irq/46-4a10000027847-21irqstats21:48:290
7450900,0irq/46-4a10000024835-21gzip23:13:460
7450900,0irq/46-4a10000022007-1kworker/u3:121:32:520
7450900,0irq/46-4a10000017585-21seq00:28:160
7450900,0irq/46-4a10000017024-21/usr/sbin/munin22:52:470
7450900,0irq/46-4a1000001464-21https20:32:460
293282900,0sleep028619-1kworker/u3:021:53:100
7450890,0irq/46-4a1000009414-21/usr/sbin/munin19:18:490
7450890,0irq/46-4a1000007947-1kworker/u3:022:28:410
7450890,0irq/46-4a1000006253-21chrt23:53:490
7450890,0irq/46-4a10000030465-1kworker/u3:122:01:560
7450890,0irq/46-4a10000026236-21processes20:08:450
7450890,0irq/46-4a10000022648-21fschecks_count23:08:150
7450890,0irq/46-4a10000019459-21idleruntime00:33:250
7450890,0irq/46-4a10000018454-21cron19:47:440
7450890,0irq/46-4a10000013916-21wget00:18:000
7450890,0irq/46-4a10000013734-21seq22:42:550
7450890,0irq/46-4a10000010055-21sendmail-msp20:57:470
169282890,0sleep015013-1kworker/u3:021:17:460
7450880,0irq/46-4a1000007521-21/usr/sbin/munin23:58:270
7450880,0irq/46-4a1000006918-21wget22:23:040
7450880,0irq/46-4a1000006732-21/usr/sbin/munin20:48:050
7450880,0irq/46-4a1000004609-21users23:48:490
7450880,0irq/46-4a1000003883-21fw_conntrack22:13:240
7450880,0irq/46-4a1000003799-21/usr/sbin/munin20:38:270
7450880,0irq/46-4a10000031097-21df_abs23:33:080
7450880,0irq/46-4a10000029519-21fschecks_count23:28:190
7450880,0irq/46-4a10000028038-21seq20:13:440
7450880,0irq/46-4a10000023202-21chrt19:59:240
7450880,0irq/46-4a10000019279-21fschecks_time22:58:170
7450880,0irq/46-4a10000017330-21cpuspeed22:53:050
7450880,0irq/46-4a10000013843-21df_abs21:08:090
7450880,0irq/46-4a10000013776-21sed19:33:250
7450880,0irq/46-4a10000012111-21seq21:03:080
185892880,0sleep013178-1kworker/u3:019:47:510
7450870,0irq/46-4a1000007466-21cat19:14:000
7450870,0irq/46-4a1000003121-21runrttasks22:11:330
7450870,0irq/46-4a10000031088-21chrt20:23:230
7450870,0irq/46-4a10000026393-21ntpq21:44:260
7450870,0irq/46-4a10000024209-21/usr/sbin/munin21:38:090
7450870,0irq/46-4a10000021200-21meminfo23:03:300
7450870,0irq/46-4a10000017051-21seq21:17:560
7450870,0irq/46-4a10000016381-21sh00:24:350
7450870,0irq/46-4a10000015657-21runrttasks19:38:250
7450870,0irq/46-4a10000012657-21runrttasks00:13:280
7350870,0irq/45-4a10000010312-21df_abs19:23:160
220622878,0sleep022082-21latency_hist21:32:470
7450860,0irq/46-4a1000008799-21aten_r4power_po00:03:180
7450860,0irq/46-4a1000005555-21irqstats20:43:220
7450860,0irq/46-4a10000020781-21/usr/sbin/munin19:53:220
4169998664,0cyclictest0-21swapper21:23:530
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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