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2026-01-01 - 02:57
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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 highest latencies:
System rack4slot2.osadl.org (updated Thu Jan 01, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
15371212710,0sleep013868-1kworker/u3:119:06:560
7450950,0irq/46-4a1000007526-21users21:52:000
314642940,0sleep024891-1kworker/u3:123:01:410
195152940,0sleep017064-1kworker/u3:000:01:260
150152930,0sleep09702-1kworker/u3:020:39:570
7450920,0irq/46-4a1000004630-1kworker/u3:121:48:100
7450920,0irq/46-4a10000024791-21ls00:20:270
7350920,0irq/45-4a10000023888-21fw_conntrack22:40:180
188242927,0sleep018825-21/usr/sbin/munin20:50:200
7450910,0irq/46-4a1000005462-21ntpq23:21:490
7450910,0irq/46-4a10000029458-21mailstats19:46:430
7450910,0irq/46-4a10000026169-21df_abs00:24:590
7450910,0irq/46-4a10000018615-1kworker/u3:122:31:510
7450910,0irq/46-4a10000010381-21open_files20:25:300
7350910,0irq/45-4a1000008282-21df_abs21:54:590
142292910,0sleep012811-1kworker/u3:022:10:500
7450900,0irq/46-4a1000007829-21sendmail-msp20:20:040
7450900,0irq/46-4a10000030888-21latency_hist00:39:320
7450900,0irq/46-4a10000030824-21ntp_offset19:50:270
7450900,0irq/46-4a1000002789-21date20:04:440
7450900,0irq/46-4a10000027140-21/usr/sbin/munin21:15:270
7450900,0irq/46-4a10000023104-21/usr/sbin/munin00:15:230
7450900,0irq/46-4a10000018615-1kworker/u3:122:35:210
7450900,0irq/46-4a10000018082-21idleruntime-cro20:49:320
197432900,0sleep018615-1kworker/u3:122:28:490
145022900,0chrt13220-1kworker/u3:023:47:320
7450890,0irq/46-4a1000009606-21sendmail-msp22:00:100
7450890,0irq/46-4a1000008662-21memory23:30:230
7450890,0irq/46-4a1000007856-21sshd23:29:150
7450890,0irq/46-4a10000027570-21proc_pri22:50:280
7450890,0irq/46-4a10000023460-21cpuspeed19:29:510
7450890,0irq/46-4a10000019762-21sendmail-msp19:21:460
7450890,0irq/46-4a10000016555-21chrt19:10:280
7450890,0irq/46-4a10000011128-21chrt23:38:040
7350890,0irq/45-4a10000022624-21/usr/sbin/munin21:00:510
312812890,0sleep030050-1kworker/u3:021:25:390
7450880,0irq/46-4a1000002908-21/usr/sbin/munin23:15:260
7450880,0irq/46-4a10000028378-21sendmail-msp21:20:490
7450880,0irq/46-4a1000002764-21sendmail-msp21:39:490
7450880,0irq/46-4a10000025594-21irqstats21:10:140
7450880,0irq/46-4a10000025424-21fschecks_time19:35:080
7450880,0irq/46-4a10000022404-21cut00:14:350
7450880,0irq/46-4a1000002015-21grep21:35:310
7450880,0irq/46-4a10000015450-21/usr/sbin/munin22:15:220
7450880,0irq/46-4a10000012615-1kworker/u3:120:33:140
7450880,0irq/46-4a10000012275-21/usr/sbin/munin23:40:460
7450870,0irq/46-4a1000006657-21fschecks_time20:15:060
7450870,0irq/46-4a10000028659-21egrep22:54:500
7450870,0irq/46-4a10000026596-21sendmail-msp19:40:300
7450870,0irq/46-4a10000023672-21diskstats21:05:000
7450870,0irq/46-4a1000002058-21/usr/sbin/munin20:00:500
7450870,0irq/46-4a10000020337-1kworker/u3:022:48:530
7450870,0irq/46-4a10000019791-1kworker/u3:020:56:330
7450870,0irq/46-4a10000019007-21grep19:15:490
7450870,0irq/46-4a10000016767-21grep23:54:490
7450870,0irq/46-4a10000014450-1kworker/u3:220:38:050
7350870,0irq/45-4a100000586-21sed23:05:450
324732877,0sleep032513-21meminfo21:30:180
7450860,0irq/46-4a1000004956-21cut20:10:120
7450860,0irq/46-4a10000031807-21latency_hist19:54:360
7450860,0irq/46-4a10000021898-21diskstats19:25:030
7450860,0irq/46-4a1000002053-21/usr/sbin/munin23:10:460
7450860,0irq/46-4a10000020361-21runrttasks00:07:270
7450860,0irq/46-4a10000015207-21/usr/sbin/munin23:50:030
7350860,0irq/45-4a10000017006-21/usr/sbin/munin22:20:130
7450850,0irq/46-4a10000027597-21/usr/sbin/munin00:29:570
7450850,0irq/46-4a10000011723-21df_inode22:04:590
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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