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2026-05-12 - 02:01
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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 highest latencies:
System rack4slot2.osadl.org (updated Tue May 12, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502850,0irq/46-4a10000014621-1kworker/u3:119:01:300
7350970,0irq/45-4a10000025896-21perl19:29:560
7450940,0irq/46-4a1000006979-21df_inode21:44:460
7450920,0irq/46-4a10000028032-21sendmail_mailst19:35:210
7450920,0irq/46-4a1000002366-21/usr/sbin/munin21:30:200
7450920,0irq/46-4a10000020216-1kworker/u3:022:29:360
7450920,0irq/46-4a10000017374-21chrt22:14:540
7450920,0irq/46-4a10000015726-21if_eth023:45:020
7450910,0irq/46-4a1000006038-21users20:05:280
7450910,0irq/46-4a1000003311-21hostname23:09:380
7450910,0irq/46-4a10000029315-21tune2fs22:49:550
7450910,0irq/46-4a10000021225-21sendmail_mailtr22:25:240
7450910,0irq/46-4a10000019125-21chrt23:54:570
7450910,0irq/46-4a10000019119-21fw_conntrack22:20:000
7450910,0irq/46-4a10000017507-1kworker/u3:219:58:550
7450910,0irq/46-4a10000010035-21ls20:19:300
7450900,0irq/46-4a1000009995-21munin-run23:29:280
7450900,0irq/46-4a100000887-21/usr/sbin/munin23:00:270
7450900,0irq/46-4a1000007761-21vmstat20:10:310
7450900,0irq/46-4a10000032366-21aten_r4power_en19:49:400
7450900,0irq/46-4a10000030894-21df_abs22:54:470
7450900,0irq/46-4a10000030007-21awk00:25:290
7450900,0irq/46-4a10000029018-21/usr/sbin/munin21:14:410
7450900,0irq/46-4a10000027234-21/usr/sbin/munin00:19:560
7450900,0irq/46-4a10000027007-1kworker/u3:022:49:190
7450900,0irq/46-4a10000025854-21fschecks_count22:39:540
7450900,0irq/46-4a10000024088-21df_inode22:34:480
7450900,0irq/46-4a10000023969-21runrttasks20:59:440
7450900,0irq/46-4a10000018979-21sort20:44:540
7450900,0irq/46-4a10000017407-21users19:05:270
7450900,0irq/46-4a10000016497-1kworker/u3:123:50:420
7450900,0irq/46-4a10000014150-21/usr/sbin/munin23:40:120
7450900,0irq/46-4a10000013112-1kworker/u3:222:06:420
7450900,0irq/46-4a10000012346-21seq22:00:050
7450900,0irq/46-4a10000012279-21fw_conntrack23:34:580
7450900,0irq/46-4a10000010154-21aten_r4power_en23:29:380
2085829012,0sleep020880-21interrupts19:15:020
7450890,0irq/46-4a1000009551-21runrttasks21:51:070
7450890,0irq/46-4a1000007384-21runrttasks23:20:150
7450890,0irq/46-4a1000005602-21memory21:40:130
7450890,0irq/46-4a10000032530-21chrt21:24:440
7450890,0irq/46-4a10000031943-21chrt00:32:260
7450890,0irq/46-4a10000030625-21/usr/sbin/munin21:20:010
7450890,0irq/46-4a10000024938-1kworker/u3:100:17:250
7450890,0irq/46-4a10000023794-21/usr/sbin/munin00:09:380
7450890,0irq/46-4a10000022135-21aten_r4power_po20:54:400
7450890,0irq/46-4a1000002094-21irqstats23:05:050
7450890,0irq/46-4a10000020733-21fschecks_time20:49:550
7450890,0irq/46-4a10000020465-21seq23:59:410
7450890,0irq/46-4a10000018387-21fschecks_count19:09:430
7450890,0irq/46-4a10000017177-21df_abs20:39:460
7450890,0irq/46-4a10000014597-21/usr/sbin/munin20:30:300
7450890,0irq/46-4a10000012414-21meminfo20:25:090
7450880,0irq/46-4a1000005521-21irqstats23:15:020
7450880,0irq/46-4a1000003765-21sshd21:35:040
7450880,0irq/46-4a1000003702-21grep19:59:560
7450880,0irq/46-4a10000030915-21diskstats19:44:520
7450880,0irq/46-4a10000025697-21df21:04:490
7450880,0irq/46-4a10000023194-21runrttasks19:20:490
7450880,0irq/46-4a10000022537-21/usr/sbin/munin00:05:000
7450880,0irq/46-4a10000015592-21fschecks_count20:34:540
7450880,0irq/46-4a10000010070-21grep20:19:310
7450880,0irq/46-4a10000010069-21wc21:54:330
7450870,0irq/46-4a10000027547-21fschecks_count21:09:550
7450870,0irq/46-4a10000024068-21df_inode19:24:470
7450870,0irq/46-4a10000015243-21aten_r4power_cu22:09:380
7350870,0irq/45-4a10000029189-21df_abs19:39:480
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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