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2026-03-23 - 17:32
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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 all highest latencies:
System rack4slot2.osadl.org (updated Mon Mar 23, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74501960,0irq/46-4a10000023447-21runrttasks07:03:250
7350970,0irq/45-4a10000020051-21/usr/sbin/munin10:02:090
137082970,0sleep012080-1kworker/u3:209:42:340
7450960,0irq/46-4a10000016621-21meminfo08:17:030
7450950,0irq/46-4a1000009674-21if_eth011:06:580
7450950,0irq/46-4a1000007917-21fschecks_time11:01:530
7450950,0irq/46-4a1000007238-21runrttasks07:50:440
7450950,0irq/46-4a10000031247-21cron10:36:240
7450950,0irq/46-4a10000025395-21sendmail_mailqu10:17:160
7450950,0irq/46-4a10000018286-21latency08:22:010
7450950,0irq/46-4a1000001250-21meminfo10:42:010
7450950,0irq/46-4a10000012339-21chrt11:15:250
23853999562,0cyclictest0-21swapper10:26:480
7450940,0irq/46-4a1000009463-21df_abs07:56:450
7450940,0irq/46-4a1000007474-21/usr/sbin/munin09:27:280
7450940,0irq/46-4a1000006640-21mailstats12:32:190
7450940,0irq/46-4a10000029696-21/usr/sbin/munin08:57:250
7450940,0irq/46-4a1000002840-21idleruntime12:21:560
7450940,0irq/46-4a10000028039-21wget07:16:340
7450940,0irq/46-4a10000026813-21seq11:56:590
7450940,0irq/46-4a10000020068-21nfs4_client08:27:080
7450940,0irq/46-4a10000018117-21grep11:31:510
7450940,0irq/46-4a10000012822-21df11:16:400
7450940,0irq/46-4a10000012757-21chrt08:06:360
23853999465,0cyclictest0-21swapper09:47:190
7450930,0irq/46-4a1000007548-21wget07:51:360
7450930,0irq/46-4a100000648-21ls12:16:290
7450930,0irq/46-4a10000031851-21fw_packets07:26:580
7450930,0irq/46-4a10000031403-21/usr/sbin/munin09:01:490
7450930,0irq/46-4a10000031053-1kworker/u3:012:10:470
7450930,0irq/46-4a10000026233-21latency_hist08:46:270
7450930,0irq/46-4a1000002530-21/usr/sbin/munin07:36:380
7450930,0irq/46-4a10000024613-21nfs4_client07:07:080
7450930,0irq/46-4a10000019662-21chrt11:36:430
7450930,0irq/46-4a10000017706-21wc09:56:280
7450920,0irq/46-4a10000031705-21chrt10:36:440
7450920,0irq/46-4a10000031375-21ls12:11:270
7450920,0irq/46-4a10000028195-21df12:01:370
7450920,0irq/46-4a10000026737-21grep07:12:120
7450920,0irq/46-4a10000026083-21seq08:46:000
7450920,0irq/46-4a10000024628-21cut11:51:340
7450920,0irq/46-4a1000002301-21wc10:46:260
7450920,0irq/46-4a10000021752-21meminfo11:42:050
7450920,0irq/46-4a10000016010-21/usr/sbin/munin09:51:580
7450920,0irq/46-4a10000011212-21runrttasks09:36:470
7450910,0irq/46-4a100000930-21df_inode07:31:440
7450910,0irq/46-4a1000006531-21proc_pri09:22:150
7450910,0irq/46-4a100000634-21/usr/sbin/munin09:07:010
7450910,0irq/46-4a1000006189-21tune2fs10:56:500
7450910,0irq/46-4a1000004996-21switchtime07:42:200
7450910,0irq/46-4a1000004514-21fw_conntrack12:26:520
7450910,0irq/46-4a1000004374-21df_inode09:16:450
7450910,0irq/46-4a1000004232-21/usr/sbin/munin10:51:380
7450910,0irq/46-4a10000028029-21wget08:51:350
7450910,0irq/46-4a10000027030-21pluginstate10:22:170
7450910,0irq/46-4a10000023218-21tune2fs10:11:500
7450910,0irq/46-4a10000023165-21chrt11:46:490
7450910,0irq/46-4a10000022587-21runrttasks08:35:320
7450910,0irq/46-4a10000021710-21grep10:07:020
7450910,0irq/46-4a10000015858-21cron08:16:230
7450910,0irq/46-4a10000011865-21grep08:02:220
7450910,0irq/46-4a10000010243-21seq09:32:220
7450900,0irq/46-4a10000029781-21/usr/sbin/munin07:21:370
7450900,0irq/46-4a1000002345-21/usr/sbin/munin09:11:390
7450900,0irq/46-4a10000022966-21wget08:36:360
7450900,0irq/46-4a10000016715-21grep11:27:160
7450900,0irq/46-4a10000015203-21mailstats11:22:180
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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