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2026-05-17 - 21:05
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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 Sun May 17, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
73504120,0irq/45-4a100000142332sleep007:01:260
7450970,0irq/46-4a1000006245-1kworker/u3:209:49:000
7450940,0irq/46-4a10000029549-21/usr/sbin/munin12:29:520
7450940,0irq/46-4a10000023118-21awk12:10:130
14622999472,0cyclictest0-21swapper09:50:050
7450930,0irq/46-4a10000023116-21threads09:00:130
7350930,0irq/45-4a10000029954-21/usr/sbin/munin09:20:110
7350930,0irq/45-4a10000022196-21aten_r4power_cu10:34:260
14622999360,0cyclictest0-21swapper07:39:290
14622999359,0cyclictest0-21swapper10:09:270
7450920,0irq/46-4a1000008773-21df_abs11:29:330
7450920,0irq/46-4a1000005457-21grep11:19:410
7450920,0irq/46-4a1000004092-21/usr/sbin/munin08:05:090
7450920,0irq/46-4a10000029283-21df_abs10:54:340
7450910,0irq/46-4a1000008959-21chrt08:19:470
7450910,0irq/46-4a10000031018-21diskstats09:24:380
7450910,0irq/46-4a10000028602-21chrt12:27:040
7450910,0irq/46-4a10000025905-21diskstats07:34:410
7450910,0irq/46-4a10000021056-21load12:04:550
7450910,0irq/46-4a10000020832-21fschecks_count10:29:420
7450910,0irq/46-4a10000019735-21timerwakeupswit08:50:130
7450910,0irq/46-4a10000016959-21munin-node07:09:390
7450910,0irq/46-4a10000016921-21munin-run08:44:160
7450910,0irq/46-4a10000016892-21cron11:54:140
7450910,0irq/46-4a10000012030-21cut11:39:280
7450910,0irq/46-4a10000011400-21chrt08:26:140
7450910,0irq/46-4a1000001075-21seq09:30:340
7350910,0irq/45-4a1000001075-1kworker/u3:108:00:500
206722919,0sleep020675-21df07:19:330
14622999158,0cyclictest0-21swapper07:14:260
7450900,0irq/46-4a1000008911-21fschecks_time09:54:440
7450900,0irq/46-4a1000007110-21diskstats11:24:400
7450900,0irq/46-4a1000003704-21/usr/sbin/munin09:39:400
7450900,0irq/46-4a10000032387-21latency_hist07:54:200
7450900,0irq/46-4a10000030984-21sed10:59:340
7450900,0irq/46-4a10000029442-21runrttasks07:44:450
7450900,0irq/46-4a10000028029-21/usr/sbin/munin10:50:060
7450900,0irq/46-4a10000024112-21sed09:04:320
7450900,0irq/46-4a10000023978-21aten_r4power_vo07:29:270
7450900,0irq/46-4a10000020975-21/usr/sbin/munin08:54:520
7450900,0irq/46-4a10000017679-21/usr/sbin/munin08:44:590
7450900,0irq/46-4a10000017145-21aten_r4power_po11:54:270
7450900,0irq/46-4a1000001695-21/usr/sbin/munin09:34:270
7450900,0irq/46-4a10000015650-21df_inode10:14:370
7450900,0irq/46-4a10000015144-21fschecks_time07:04:440
7450900,0irq/46-4a10000014788-21runrttasks11:45:540
7450900,0irq/46-4a10000013007-21chrt08:30:240
7450900,0irq/46-4a10000010843-21grep11:35:000
14622999069,0cyclictest0-21swapper08:14:290
7450890,0irq/46-4a1000005396-21uniq08:09:390
7450890,0irq/46-4a10000031219-21/usr/sbin/munin07:49:500
7450890,0irq/46-4a10000027234-21latency_hist10:49:190
7450890,0irq/46-4a10000025936-21/usr/sbin/munin09:09:420
7450890,0irq/46-4a10000022430-21df07:24:340
7450890,0irq/46-4a10000014704-21/usr/sbin/munin08:35:160
14622998956,0cyclictest0-21swapper10:19:540
14622998955,0cyclictest0-21swapper10:04:420
7450880,0irq/46-4a1000003813-21fschecks_time11:14:430
7450880,0irq/46-4a10000028223-21switchtime09:15:090
7450880,0irq/46-4a10000026032-21/usr/sbin/munin12:19:440
7450880,0irq/46-4a10000024381-21if_err_eth010:39:510
7450880,0irq/46-4a10000023990-21aten_r4power_vo12:14:280
7450880,0irq/46-4a1000002109-21fschecks_time11:09:450
7450880,0irq/46-4a10000019862-21runrttasks10:25:300
7450880,0irq/46-4a10000019370-21memory11:59:570
7450880,0irq/46-4a10000010511-21df_inode09:59:350
7450870,0irq/46-4a10000032720-21df_inode11:04:380
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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