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2025-08-21 - 22:13
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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 Thu Aug 21, 2025 12:44:04)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74509620,0irq/46-4a10000021561-21sendmail-msp07:05:380
2950529910,0sleep029506-21meminfo10:29:070
7350970,0irq/45-4a10000016784-21/usr/sbin/munin11:29:290
7450960,0irq/46-4a1000001390-21runrttasks12:18:350
24996999685,0cyclictest12-21ksoftirqd/011:51:300
7450950,0irq/46-4a1000008676-21df_inode11:04:010
7450950,0irq/46-4a10000025367-21sendmail-msp10:23:050
7450950,0irq/46-4a10000018548-21sendmail-msp10:00:030
7450950,0irq/46-4a1000001523-1kworker/u3:310:44:510
7450950,0irq/46-4a1000001239-21sendmail-msp12:24:030
7450950,0irq/46-4a10000010915-21mailstats11:09:430
7450950,0irq/46-4a10000010792-21seq09:34:020
7450940,0irq/46-4a1000008908-21runrttasks07:53:420
7450940,0irq/46-4a1000006517-21sendmail-msp10:58:490
7450940,0irq/46-4a1000004019-21awk10:50:060
7450940,0irq/46-4a10000030604-21sendmail-msp08:59:200
7450940,0irq/46-4a10000030353-21ls12:08:110
7450940,0irq/46-4a10000027055-21df_abs07:13:220
7450940,0irq/46-4a10000027004-21runrttasks08:46:490
7450940,0irq/46-4a10000025120-21chrt07:08:210
7450940,0irq/46-4a10000021158-21mailstats11:39:580
7450930,0irq/46-4a1000009351-21runrttasks09:29:230
7450930,0irq/46-4a1000007659-21ntpq07:50:000
7450930,0irq/46-4a1000003893-21cut07:39:140
7450930,0irq/46-4a10000032170-21sendmail-msp10:38:310
7450930,0irq/46-4a10000030670-21cron07:23:050
7450930,0irq/46-4a10000029349-21grep12:04:150
7450930,0irq/46-4a10000027668-21seq10:24:000
7450930,0irq/46-4a10000026882-21sendmail-msp11:58:270
7450930,0irq/46-4a10000022186-21runrttasks10:08:340
7450930,0irq/46-4a10000021009-21if_err_eth008:29:020
7450930,0irq/46-4a10000017275-21diskstats09:53:410
7450930,0irq/46-4a10000012508-21ls09:40:110
7450930,0irq/46-4a10000012144-21wget08:03:490
7450930,0irq/46-4a10000011765-21sendmail-msp09:43:270
7450930,0irq/46-4a10000010172-21sendmail-msp07:58:330
7350930,0irq/45-4a1000005507-21seq07:43:460
24996999360,0cyclictest0-21swapper09:14:280
7450920,0irq/46-4a1000004962-21sendmail-msp09:19:080
7450920,0irq/46-4a1000003339-21sendmail07:38:060
7450920,0irq/46-4a10000030552-21cat10:33:170
7450920,0irq/46-4a10000027376-21aten_r4power_en08:48:310
7450920,0irq/46-4a10000026882-21sendmail-msp11:58:140
7450920,0irq/46-4a10000023803-21sendmail-msp08:38:350
7450920,0irq/46-4a10000023803-21sendmail-msp08:38:100
7450920,0irq/46-4a10000021076-21ntp_kernel_pll_10:04:200
7450920,0irq/46-4a10000020091-21sendmail-msp11:44:240
7450920,0irq/46-4a10000019777-21users11:36:020
7450920,0irq/46-4a1000001478-21runrttasks09:07:590
7350920,0irq/45-4a10000013666-21cat11:18:560
159892920,0chrt8378-1kworker/u3:211:25:290
7450910,0irq/46-4a1000006864-21fschecks_time12:33:440
7450910,0irq/46-4a1000005917-21grep10:54:250
7450910,0irq/46-4a1000005185-21perl12:28:500
7450910,0irq/46-4a10000029625-21/usr/sbin/munin08:53:590
7450910,0irq/46-4a10000016989-21sendmail-msp08:18:380
7450910,0irq/46-4a10000016005-21awk09:49:260
7450910,0irq/46-4a1000001260-21runrttasks07:30:090
24996999159,0cyclictest0-21swapper08:09:070
7450900,0irq/46-4a100000688-21unixbench_singl12:14:230
7450900,0irq/46-4a10000031355-21/usr/sbin/munin07:24:040
7450900,0irq/46-4a1000001971-21diskstats09:08:430
7450900,0irq/46-4a10000019158-21fschecks_count08:23:500
7350900,0irq/45-4a10000013289-21sendmail11:18:060
685029010,0sleep06874-21wget09:23:320
7450890,0irq/46-4a10000025367-21sendmail-msp10:18:090
7450890,0irq/46-4a10000015375-21chrt08:13:170
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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