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2026-06-30 - 12:36
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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 792 highest latencies:
System rack4slot2.osadl.org (updated Tue Jun 30, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
73502000,0irq/45-4a10000029384-21kworker/0:119:04:490
7450980,0irq/46-4a10000010928-21seq21:10:260
171022970,0sleep015005-1kworker/u3:219:54:480
7450930,0irq/46-4a1000004724-21idleruntime-cro00:04:280
7450930,0irq/46-4a10000020826-21sshd20:05:070
7450920,0irq/46-4a1000004839-1kworker/u3:100:10:090
7450920,0irq/46-4a10000031420-1kworker/u3:219:11:280
7450920,0irq/46-4a10000025249-21sendmail-msp20:19:310
7450920,0irq/46-4a10000019049-1kworker/u3:220:00:540
7450920,0irq/46-4a1000001329-21sendmail-msp22:20:180
7450910,0irq/46-4a1000008529-21df_abs00:14:440
7450910,0irq/46-4a1000007223-21nfs4_client21:00:220
7450910,0irq/46-4a1000004760-21sendmail-msp19:19:530
7450910,0irq/46-4a10000028628-1kworker/u3:123:41:500
7450910,0irq/46-4a10000019349-21which23:10:210
7350910,0irq/45-4a10000027034-21aten_r4power_cu23:34:370
7450900,0irq/46-4a1000009997-21wget00:19:400
7450900,0irq/46-4a1000006453-21sendmail-msp20:59:300
7450900,0irq/46-4a10000030768-21df_inode20:34:480
7450900,0irq/46-4a10000029831-21users20:30:290
7450900,0irq/46-4a10000028113-21sed20:25:390
7450900,0irq/46-4a10000027573-21if_eth022:00:090
7450900,0irq/46-4a10000026279-21/usr/sbin/munin20:20:340
7450900,0irq/46-4a10000022406-21/usr/sbin/munin21:45:040
7450900,0irq/46-4a10000021267-21runrttasks23:15:290
7450900,0irq/46-4a10000020117-21sendmail-msp21:40:210
7450900,0irq/46-4a10000017099-21df_inode21:29:470
7450900,0irq/46-4a10000011373-21runrttasks19:38:040
7350900,0irq/45-4a100000388-21/usr/sbin/munin20:40:230
7350900,0irq/45-4a10000017102-21diskstats23:04:500
7450890,0irq/46-4a1000008569-21df_inode22:39:520
7450890,0irq/46-4a1000006849-21df_inode22:34:500
7450890,0irq/46-4a1000005312-21fw_forwarded_lo00:05:070
7450890,0irq/46-4a1000003678-21sshd22:25:070
7450890,0irq/46-4a10000030903-1kworker/u3:223:50:030
7450890,0irq/46-4a10000029498-21/usr/sbin/munin22:05:180
7450890,0irq/46-4a1000002675-21fschecks_count19:14:380
7450890,0irq/46-4a10000019067-21/usr/sbin/munin21:35:060
7450890,0irq/46-4a1000001651-21df20:44:430
7450890,0irq/46-4a10000013851-21runrttasks19:44:570
7450890,0irq/46-4a10000011783-21wget19:39:410
320552890,0sleep030787-1kworker/u3:122:14:290
7450880,0irq/46-4a1000009898-21latency_hist19:34:310
7450880,0irq/46-4a1000008272-21seq21:04:380
7450880,0irq/46-4a1000005507-21grep22:30:140
7450880,0irq/46-4a1000003068-21sed23:59:340
7450880,0irq/46-4a10000030643-21cat23:44:440
7450880,0irq/46-4a10000024640-21/usr/sbin/munin23:25:260
7450880,0irq/46-4a10000023196-21chrt20:12:030
7450880,0irq/46-4a10000015866-21grep21:25:200
7450880,0irq/46-4a10000015678-21meminfo00:35:080
7450880,0irq/46-4a10000015305-21expr19:49:430
7450880,0irq/46-4a10000014979-21sendmail-msp22:59:490
7450880,0irq/46-4a10000013815-21fw_conntrack22:54:560
7450880,0irq/46-4a10000012774-1kworker/u3:021:19:110
7450880,0irq/46-4a10000011758-21wget00:24:400
7350880,0irq/45-4a1000001281-21cron22:19:280
1378628821,0sleep013290-21sendmail-msp21:19:590
7450870,0irq/46-4a10000026172-21grep23:30:200
7450870,0irq/46-4a10000021926-21/usr/sbin/munin23:19:540
7450870,0irq/46-4a10000013385-21basename00:29:380
7450870,0irq/46-4a10000011756-21/usr/sbin/munin22:49:420
7450860,0irq/46-4a1000006680-21aten_r4power_vo19:24:410
7450860,0irq/46-4a1000004194-21grep20:50:290
7450860,0irq/46-4a10000025397-21aten_r4power_po21:54:400
7450860,0irq/46-4a10000010493-21irqstats22:45:040
7450850,0irq/46-4a10000022548-1kworker/u3:221:49:350
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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