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2026-07-25 - 10:16
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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 Sat Jul 25, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502040,0irq/46-4a10000031890-21/usr/sbin/munin19:04:130
122752900,0sleep011180-1kworker/u3:219:39:370
7450890,0irq/46-4a100000438-21snmpd22:48:270
7350890,0irq/45-4a10000023869-21seq21:49:140
7350880,0irq/45-4a10000025565-21runrttasks20:19:160
323998867,0cyclictest0-21swapper23:04:000
7450860,0irq/46-4a1000005717-21runrttasks00:06:170
7450860,0irq/46-4a10000030491-21fw_conntrack22:08:570
7350860,0irq/45-4a1000009848-21/usr/sbin/munin00:18:510
7350860,0irq/45-4a1000004439-21/usr/sbin/munin20:54:140
7450850,0irq/46-4a100000438-21snmpd23:18:540
7450850,0irq/46-4a10000031894-21wget20:38:430
7450850,0irq/46-4a10000031670-21sendmail-msp20:38:340
7450850,0irq/46-4a1000003118-21tune2fs19:14:130
7450850,0irq/46-4a10000028816-21/usr/sbin/munin20:29:010
7450850,0irq/46-4a10000018139-21aten_r4power_cu19:58:380
7450850,0irq/46-4a10000011476-21df_abs21:13:450
7450850,0irq/46-4a1000001055-21wget20:43:380
7350850,0irq/45-4a10000019791-21/usr/sbin/munin21:39:340
7450840,0irq/46-4a1000008806-21awk19:29:250
7450840,0irq/46-4a1000006240-21wget20:58:430
7450840,0irq/46-4a10000029723-1kworker/u3:022:39:410
7450840,0irq/46-4a10000027144-1kworker/u3:123:39:010
7450840,0irq/46-4a10000026925-21diskstats23:33:480
7450840,0irq/46-4a1000002239-21sshd23:55:520
7450840,0irq/46-4a10000014899-21chrt19:48:450
7450840,0irq/46-4a10000014566-21sendmail-msp22:58:520
7450840,0irq/46-4a10000011924-21/usr/sbin/munin00:24:150
5252840,0sleep032505-1kworker/u3:219:08:410
30212849,0sleep03024-21df_inode23:58:520
202632846,0sleep020266-21cat20:03:570
193702840,0chrt18263-1kworker/u3:023:11:140
7450830,0irq/46-4a1000003541-21/usr/sbin/munin20:49:200
7450830,0irq/46-4a100000348-1kworker/u3:023:52:560
7450830,0irq/46-4a10000026533-21sendmail-msp21:59:210
7450830,0irq/46-4a10000025127-21df23:28:460
7450830,0irq/46-4a10000024251-21grep23:24:270
7450830,0irq/46-4a10000023834-21chrt20:14:120
7450830,0irq/46-4a10000017983-21awk19:58:290
7450830,0irq/46-4a10000012991-21/usr/sbin/munin19:44:200
7450830,0irq/46-4a10000010401-21mailstats19:34:220
7350830,0irq/45-4a1000005037-21latency19:19:120
7350830,0irq/45-4a10000028527-21cstates22:03:420
189572836,0sleep018989-21sensors21:34:230
7450820,0irq/46-4a1000009403-21idleruntime-cro00:18:270
7450820,0irq/46-4a100000917-21sendmail-msp22:19:400
7450820,0irq/46-4a1000004701-21df_abs22:28:470
7450820,0irq/46-4a10000031521-1kworker/u3:222:16:120
7450820,0irq/46-4a10000030857-21find23:44:200
7450820,0irq/46-4a1000003002-21df_abs22:23:460
7450820,0irq/46-4a10000021734-21df21:43:440
7450820,0irq/46-4a10000020450-21chrt23:14:160
7450820,0irq/46-4a10000011129-21cron21:13:280
7350820,0irq/45-4a10000014619-21latency_hist22:58:360
7350820,0irq/45-4a10000011585-21fschecks_count22:48:540
280502820,0sleep028032-1kworker/u3:120:27:030
224802820,0chrt21065-1kworker/u3:220:09:260
7450810,0irq/46-4a1000009195-21chrt21:06:370
7450810,0irq/46-4a1000007566-21runrttasks22:37:240
7450810,0irq/46-4a1000006644-21irqstats00:09:060
7450810,0irq/46-4a1000006200-21aten_r4power_en19:23:400
7450810,0irq/46-4a10000016395-21/usr/sbin/munin21:29:140
7450810,0irq/46-4a10000014775-21grep00:33:430
7450810,0irq/46-4a10000012878-21sendmail-msp21:18:430
253812816,0sleep025382-21fw_forwarded_lo21:54:010
7450800,0irq/46-4a10000015137-21fw_conntrack21:23:580
7450800,0irq/46-4a10000013294-21fschecks_count00:28:530
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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