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2026-04-02 - 05:38
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 25 million
Resolution of latency scale: reduced 
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system
Characteristics of the 792 highest latencies:
System rack3slot5.osadl.org.osadl.org (updated Thu Apr 02, 2026 00:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
151151660,0ktimers/0151481sleep19:09:100
1514340,0ktimers/016041sleep20:38:590
1514290,0ktimers/0296271sleep23:26:060
525504040,0irq/11-sym53c8x130250irq/15-NE200021:43:490
1513930,0ktimers/0312921sleep20:25:070
525503820,0irq/11-sym53c8x130250irq/15-NE200019:24:150
525503770,0irq/11-sym53c8x130250irq/15-NE200023:09:420
1513760,0ktimers/0291581chrt20:15:060
525503650,0irq/11-sym53c8x130250irq/15-NE200023:29:430
1604599335154,0cyclictest16950-21ssh22:09:410
525503330,0irq/11-sym53c8x130250irq/15-NE200022:31:030
1604599333164,0cyclictest11403-21nfs_client21:35:580
1513330,0ktimers/076781chrt00:30:210
1604599324177,0cyclictest21633-21kernelversion19:40:130
1604599323202,0cyclictest822-21grep23:45:590
1604599323132,0cyclictest17310-21df_inode19:19:150
1513170,0ktimers/08251-21kworker/u4:1+xprtiod21:47:400
1604599314165,0cyclictest0-21swapper23:58:150
1604599314162,0cyclictest24412-21chrt22:56:250
1604599313154,0cyclictest32421-21chrt23:41:220
1604599312158,0cyclictest0-21swapper00:12:350
1604599310162,0cyclictest19158-21munin-plugin-st22:23:510
1604599309138,0cyclictest7747-21diskmemload23:04:460
1604599308158,0cyclictest22486-21aten_r3power_vo19:44:490
1604599308144,0cyclictest15181-21date21:58:580
1604599306128,0cyclictest10260-21ssh21:30:140
1604599306106,0cyclictest28620-21apt-get23:20:020
1604599305197,0cyclictest7754-21munin-run21:13:530
1604599305148,0cyclictest0-21swapper23:49:350
1604599305142,0cyclictest13506-21munin-node21:49:260
1604599305132,0cyclictest0-21swapper20:02:520
1604599304101,0cyclictest31713-21sh23:38:340
1604599303144,0cyclictest24606-21load19:54:420
1604599301186,0cyclictest30795-21munin-run20:23:550
1604599300138,0cyclictest3729-21runrttasks21:26:270
1604599300135,0cyclictest23699-21runrttasks22:50:500
1604599299197,0cyclictest7903-21chrt21:14:200
1604599299156,0cyclictest26686-21basename20:04:220
1302502980,0irq/15-NE200052550irq/11-sym53c8xx00:03:500
1604599297156,0cyclictest3376-21syslogd00:19:120
1604599296162,0cyclictest34-1kworker/0:1H+kblockd22:14:160
1604599296151,0cyclictest20830-21mailstats22:34:140
1604599295172,0cyclictest22729-21sh22:45:470
1604599295144,0cyclictest25683-21latency_hist23:04:100
1604599295137,0cyclictest20054-21wc19:33:590
1604599295132,0cyclictest8808-21expr21:20:300
1604599294176,0cyclictest22238-21ssh22:44:000
1604599294172,0cyclictest28051-21grep20:10:040
1604599294132,0cyclictest15390-21ls21:59:340
1604599293158,0cyclictest894-21jbd2/sda1-819:13:590
1604599293126,0cyclictest8449-21munin-node00:34:340
1604599291153,0cyclictest5907-21runrttasks21:03:550
1604599291136,0cyclictest19835-21sendmail_mailtr22:29:040
1604599291127,0cyclictest3729-21runrttasks00:06:060
1604599290188,0cyclictest16042-21cyclictest20:44:560
1604599289122,0cyclictest32351-21sort20:29:580
1604599288127,0cyclictest27817-21chrt23:15:220
1604599288127,0cyclictest19451-21awk19:30:100
1604599286164,0cyclictest5557-21ssh00:17:010
1604599286124,0cyclictest9414-21ssh00:39:540
1604599285191,0cyclictest24292-21cron19:53:490
1604599285118,0cyclictest4729-21iostat20:55:020
1604599283152,0cyclictest3656-21awk20:50:050
1604599282119,0cyclictest2127-21nfs_client20:40:140
1604599281119,0cyclictest6189-21cut21:04:460
1604599281116,0cyclictest7138-21chrt00:27:180
160459927986,0cyclictest16673-21ssh22:08:420
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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