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2026-07-27 - 18:52
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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 all highest latencies:
System rack4slot2.osadl.org (updated Mon Jul 27, 2026 12:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
73502610,0irq/45-4a10000021899-21kworker/0:407:04:080
30079999774,0cyclictest0-21swapper08:04:130
30079999470,0cyclictest0-21swapper11:03:460
7450920,0irq/46-4a1000002179-1kworker/u3:209:00:560
7450920,0irq/46-4a10000021121-21runrttasks08:14:070
7450920,0irq/46-4a10000015871-21chrt07:58:590
7350920,0irq/45-4a1000009257-21/usr/sbin/munin07:39:190
7450910,0irq/46-4a1000004956-1kworker/u3:011:02:150
7450910,0irq/46-4a10000023786-21ls09:58:220
7450910,0irq/46-4a10000022703-21/usr/sbin/munin11:28:580
30079999158,0cyclictest0-21swapper08:29:140
30079999154,0cyclictest0-21swapper12:23:340
184462910,0sleep018375-1kworker/u3:209:41:370
7450900,0irq/46-4a1000005779-21ls10:39:160
7450900,0irq/46-4a10000032402-21timerwakeupswit07:13:470
7450900,0irq/46-4a10000030653-21sendmail-msp10:18:270
7450900,0irq/46-4a10000018316-1kworker/u3:111:17:400
30079999069,0cyclictest0-21swapper12:09:180
30079999058,0cyclictest0-21swapper11:44:020
30079999057,0cyclictest0-21swapper10:54:250
7450890,0irq/46-4a1000007902-21users10:44:250
7450890,0irq/46-4a1000007142-21/usr/sbin/munin09:08:470
7450890,0irq/46-4a1000006135-21grep12:14:240
7450890,0irq/46-4a1000003719-21diskstats10:33:460
7450890,0irq/46-4a10000031185-21seq11:53:560
7450890,0irq/46-4a10000026163-21irqstats11:39:100
7450890,0irq/46-4a10000024409-21/usr/sbin/munin08:23:570
7450890,0irq/46-4a1000002152-21fw_conntrack10:28:530
7450890,0irq/46-4a10000018830-21wget09:43:340
7450890,0irq/46-4a10000013521-21sendmail12:38:220
7450890,0irq/46-4a10000012671-21/usr/sbin/munin07:49:100
7350890,0irq/45-4a1000005742-21memory09:04:060
30079998965,0cyclictest0-21swapper11:33:350
21682899,0sleep02169-21fw_forwarded_lo08:53:560
7450880,0irq/46-4a1000009466-21sort10:49:200
7450880,0irq/46-4a1000008540-21/usr/sbin/munin09:14:100
7450880,0irq/46-4a1000008270-21chrt12:22:270
7450880,0irq/46-4a1000007696-21cat07:34:170
7450880,0irq/46-4a1000005411-21sed07:28:420
7450880,0irq/46-4a1000003896-21tune2fs07:23:510
7450880,0irq/46-4a10000031124-21fschecks_count08:43:510
7450880,0irq/46-4a10000030653-21sendmail-msp10:18:480
7450880,0irq/46-4a10000028419-21users08:34:240
7450880,0irq/46-4a10000028263-21sort10:09:200
7450880,0irq/46-4a1000002515-21fgrep12:04:170
7450880,0irq/46-4a10000021090-21runrttasks09:48:590
7450880,0irq/46-4a10000014747-21users09:29:260
7450880,0irq/46-4a10000013066-21chrt09:24:260
7450880,0irq/46-4a10000011053-21ps07:44:180
7450880,0irq/46-4a10000010532-21sed09:18:430
7350880,0irq/45-4a10000029909-21sendmail_mailqu08:39:300
30079998865,0cyclictest0-21swapper12:03:230
30079998858,0cyclictest0-21swapper09:58:520
30079998856,0cyclictest0-21swapper08:09:150
30079998853,0cyclictest0-21swapper12:28:470
225362881,0sleep022534-21df_inode08:18:460
7450870,0irq/46-4a100000515-21if_eth010:23:590
7450870,0irq/46-4a10000032344-21latency_hist08:48:260
7450870,0irq/46-4a10000031265-21runrttasks07:09:240
7450870,0irq/46-4a10000021314-21zcat11:24:160
7450870,0irq/46-4a10000016930-21runrttasks09:38:190
7450870,0irq/46-4a1000001636-21sendmail-msp07:18:320
7450870,0irq/46-4a10000015739-21/usr/sbin/munin11:08:490
7350870,0irq/45-4a10000019897-21vmstat11:19:370
141482879,0sleep0438-21snmpd07:53:570
7450860,0irq/46-4a10000029439-21fschecks_time11:48:520
7450860,0irq/46-4a10000027210-21munin-run10:08:230
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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