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2025-07-15 - 11:38
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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 376 highest latencies:
System rack4slot2.osadl.org (updated Tue Jul 15, 2025 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
21651219837,0sleep021652-21munin-node19:04:470
7350880,0irq/45-4a1000005899-21/usr/sbin/munin23:00:220
7350880,0irq/45-4a10000018072-21kworker/u2:1022:01:330
7350870,0irq/45-4a1000003622-21/usr/sbin/munin21:20:230
7350870,0irq/45-4a1000001230-21/usr/sbin/munin00:20:500
7350860,0irq/45-4a10000019250-21/usr/sbin/munin23:39:560
7450840,0irq/46-4a10000029108-21sendmail-msp21:00:190
7450830,0irq/46-4a1000007384-21df_abs23:05:010
7450830,0irq/46-4a10000010128-21runrttasks20:03:500
7350830,0irq/45-4a100000439-21snmpd21:40:190
7350830,0irq/45-4a10000032396-21modprobe19:34:350
7350830,0irq/45-4a10000031553-21if_eth022:40:250
7350830,0irq/45-4a10000017665-21perl20:25:090
7450820,0irq/46-4a10000027300-21sendmail-msp19:20:410
7450820,0irq/46-4a1000001984-21wget21:14:520
7350820,0irq/45-4a10000028507-21ls20:55:440
7350820,0irq/45-4a10000023272-21awk20:40:490
7350820,0irq/45-4a10000016000-21/usr/sbin/munin20:20:190
222642820,0chrt22254-21sendmail-msp20:39:390
7450810,0irq/46-4a1000004041-21cut22:55:080
7450810,0irq/46-4a1000003804-21runrttasks00:29:490
7450810,0irq/46-4a10000029277-21runrttasks00:09:360
7450810,0irq/46-4a10000025867-21sendmail-msp00:00:570
7450810,0irq/46-4a10000025755-21debian-sa122:24:350
7450810,0irq/46-4a10000025168-21date19:14:420
7450810,0irq/46-4a10000012157-21sendmail-msp23:21:010
7350810,0irq/45-4a100000399-21aten_r4power_vo22:44:540
7450800,0irq/46-4a1000005713-21sort19:50:180
7450800,0irq/46-4a10000032730-1kworker/u3:200:25:020
7450800,0irq/46-4a10000024328-21wget23:54:570
7450800,0irq/46-4a10000021292-21runrttasks23:45:110
7450800,0irq/46-4a10000016201-21if_eth023:30:150
7350800,0irq/45-4a100000461-21runrttasks19:10:230
256532808,0sleep025667-21munin-run20:49:350
177472800,0sleep016855-1kworker/u3:123:35:070
7450790,0irq/46-4a1000007033-21aten_r4power_vo19:54:530
7450790,0irq/46-4a100000439-21snmpd22:28:240
7450790,0irq/46-4a1000003058-21users22:50:420
7450790,0irq/46-4a10000029003-1kworker/u3:022:38:000
7450790,0irq/46-4a10000027814-21df22:30:000
7450790,0irq/46-4a10000024062-21sendmail-msp22:19:430
7450790,0irq/46-4a10000022260-1kworker/u3:220:50:480
7450790,0irq/46-4a10000021495-21ps22:10:340
7450790,0irq/46-4a10000019646-21seq22:05:270
7450790,0irq/46-4a1000001693-21sendmail-msp19:41:390
7450790,0irq/46-4a10000016279-21runrttasks21:55:280
7450790,0irq/46-4a10000013793-21dpkg20:14:470
7450790,0irq/46-4a10000010540-21/usr/sbin/munin23:15:310
7450790,0irq/46-4a10000010382-21seq20:04:500
7350790,0irq/45-4a10000014517-21chrt21:50:280
7450780,0irq/46-4a1000007902-21grep21:30:370
7450780,0irq/46-4a1000006177-21ntpq00:35:300
7450780,0irq/46-4a1000005156-21sort19:49:380
7450780,0irq/46-4a100000439-21snmpd21:38:040
7450780,0irq/46-4a100000439-21snmpd00:14:070
7450780,0irq/46-4a10000032672-21cron00:19:340
7450780,0irq/46-4a10000032163-1kworker/u3:119:35:390
7450780,0irq/46-4a10000029124-21/usr/sbin/munin19:25:270
7450780,0irq/46-4a10000019890-21threads20:30:390
7450780,0irq/46-4a10000011859-1kworker/u3:221:47:260
7450770,0irq/46-4a1000005358-1kworker/u3:021:25:420
7450770,0irq/46-4a10000032647-1kworker/u3:021:10:060
7450770,0irq/46-4a10000013976-21/usr/sbin/munin23:25:190
7450760,0irq/46-4a1000009178-21fschecks_count23:10:090
7450760,0irq/46-4a100000439-21snmpd21:07:510
7450760,0irq/46-4a10000023125-21grep23:50:200
7450760,0irq/46-4a10000012545-21fw_conntrack20:10:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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