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2025-11-17 - 11:39
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 100 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 rack2slot7.osadl.org (updated Mon Nov 17, 2025 00:43:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
135343699433,24cyclictest0-21swapper/123:13:071
1353436993726,7cyclictest0-21swapper/119:30:571
135343599363,9cyclictest1409565-21collect221:33:060
135343799354,9cyclictest1402885-21sendmail-msp21:27:572
135343599344,15cyclictest1412293-21ssh21:36:520
1353437993324,5cyclictest0-21swapper/221:40:572
135343599332,27cyclictest0-21swapper/022:10:550
135343799312,6cyclictest1411784-21grep21:35:542
135343799311,8cyclictest1480251-21ntpq22:53:042
135343599319,16cyclictest619-21mta-sts-daemon23:15:570
1353435993116,1cyclictest0-21swapper/023:58:050
135343599311,18cyclictest0-21swapper/021:23:060
135343799302,19cyclictest1449268-21ntpq22:18:012
135343799302,11cyclictest764-21rs:main2
135343599302,16cyclictest0-21swapper/000:13:040
135343799292,8cyclictest1555231-21/usr/sbin/munin00:17:582
135343799291,7cyclictest1427180-21sh21:53:032
135343799288,8cyclictest1438112-21sendmail22:05:532
135343799285,7cyclictest0-21swapper/221:38:132
135343799283,2cyclictest1493555-21ssh23:08:072
1353437992817,10cyclictest0-21swapper/221:23:002
1353437992811,2cyclictest1454311-21unixbench_multi22:23:092
1353437992811,2cyclictest1454311-21unixbench_multi22:23:092
1353437992810,16cyclictest1442553-21munin-plugin-st22:10:532
1353436992820,6cyclictest1365876-21fschecks_time19:52:591
1353435992817,4cyclictest1444107-21head22:12:570
135343799277,5cyclictest1353438-21/usr/sbin/munin19:15:532
135343799273,6cyclictest1375229-21munin-plugin-st20:20:542
135343799272,9cyclictest1438150-21sendmail-msp22:12:582
135343799272,7cyclictest1390593-21sort21:05:532
1353437992711,3cyclictest1462439-21uname22:33:042
135343799271,11cyclictest1466348-21cut22:37:582
135343799271,10cyclictest1473426-21sendmail-msp22:48:052
135343799270,10cyclictest1362195-21cat19:40:542
135343599279,14cyclictest619-21mta-sts-daemon21:13:090
1353435992714,2cyclictest0-21swapper/000:18:050
135343599271,3cyclictest1453187-21sort22:22:590
135343599271,3cyclictest1453187-21sort22:22:590
135343799267,18cyclictest0-21swapper/200:02:582
135343799262,6cyclictest1560555-21/usr/sbin/munin00:23:042
135343799261,9cyclictest1538354-21proc_pri23:58:052
1353437992611,1cyclictest0-21swapper/219:52:592
135343599262,8cyclictest0-21swapper/021:17:590
1353435992614,2cyclictest0-21swapper/023:23:040
135343799255,6cyclictest1551091-21/usr/sbin/munin00:13:002
135343799253,8cyclictest1369071-21/usr/sbin/munin20:02:592
135343799253,10cyclictest1457535-21ssh22:27:562
135343799252,7cyclictest1524048-21ssh23:42:572
135343799251,6cyclictest1364656-21/usr/sbin/munin19:48:022
135343799251,6cyclictest1364656-21/usr/sbin/munin19:48:022
135343799251,5cyclictest1362547-21grep19:43:002
135343599256,7cyclictest0-21swapper/021:53:100
135343599252,2cyclictest1485394-21unixbench_singl22:58:090
1353435992513,2cyclictest1473571-21latency_hist22:45:530
135343599250,4cyclictest1417920-21fschecks_count21:42:590
135343799246,7cyclictest1533627-21/usr/sbin/munin23:53:032
135343799242,9cyclictest1387116-21latency_hist20:55:532
135343799242,7cyclictest1576885-21fschecks_count00:42:592
135343799242,6cyclictest1484318-21fschecks_count22:57:592
135343799241,9cyclictest1564813-21fschecks_time00:27:592
135343799241,8cyclictest1381070-21/usr/sbin/munin20:38:012
1353436992419,3cyclictest1005-21mta-sts-daemon22:08:051
1353435992422,1cyclictest11650irq/162-mmc023:48:090
135343599242,12cyclictest1575401-21grep00:40:540
135343599241,4cyclictest1353434-21cyclictest19:15:530
1353435992414,1cyclictest0-21swapper/023:34:100
135343599241,22cyclictest1407082-21ssh21:30:380
1353435992411,3cyclictest0-21swapper/020:48:040
112699240,0rtkit-daemon0-21swapper/023:44:510
135343799232,8cyclictest1370705-21aten_r2power_vo20:07:592
1353437992310,13cyclictest1354484-21ntp_kernel_pll_19:18:052
135343699235,11cyclictest1007-21mta-sts-daemon00:26:081
1353435992320,0cyclictest0-21swapper/000:28:040
135343799225,13cyclictest0-21swapper/223:15:572
135343799224,13cyclictest1569320-21/usr/sbin/munin00:33:052
135343799221,8cyclictest1377152-21aten_r2power_cu20:27:572
135343699226,10cyclictest1006-21mta-sts-daemon20:57:331
135343699222,16cyclictest1394052-21diskmemload23:15:571
1353436992220,1cyclictest0-21swapper/122:03:041
1353436992217,4cyclictest1467419-21unixbench_multi22:38:081
1353436992214,4cyclictest1380776-21fschecks_time20:37:591
135343599229,4cyclictest0-21swapper/021:47:560
1353435992214,4cyclictest0-21swapper/000:31:460
135343799217,8cyclictest0-21swapper/219:30:572
135343799212,1cyclictest0-21swapper/220:12:562
135343799212,11cyclictest1491351-21awk23:05:532
135343699213,12cyclictest1550783-21/usr/sbin/munin00:13:001
135343599213,16cyclictest0-21swapper/023:03:090
1353435992119,1cyclictest0-21swapper/022:33:130
1353435992118,2cyclictest1475238-21gltestperf22:47:590
135343599211,20cyclictest0-21swapper/022:38:310
135343599210,3cyclictest1392586-21latency_hist21:10:540
1353437992010,3cyclictest1507048-21ntp_kernel_pll_23:23:022
135343799200,15cyclictest1356742-21sendmail-msp19:28:032
135343699204,12cyclictest111788-21systemd-journal23:45:551
1353436992017,2cyclictest1377410-21fschecks_count20:27:591
135343599207,2cyclictest1544988-21sendmail-msp00:08:000
135343599204,9cyclictest619-21mta-sts-daemon23:36:170
112699200,1rtkit-daemon0-21swapper/123:36:381
135343799194,9cyclictest1509582-21ssh23:26:102
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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