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2023-01-27 - 16:02

x86 Intel Core i7-3770K @3500 MHz, Linux 5.15.49-rt47 (Profile)

Latency plot of system in rack #0, slot #2
Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Command line: cyclictest -l100000000 -m -n -a4-7 -p99 -i200 -h400 -t4 -q
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, Linux 4.9.20-rt16, x86_64 highest latencies:
System rack0slot2.osadl.org (updated Fri Jan 27, 2023 12:43:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
100164199160,15cyclictest1696195-21snmpd10:10:557
100164199130,11cyclictest1698211-21munin-plugin-st12:03:427
1001639991313,0cyclictest0-21swapper/609:34:396
100163999130,0cyclictest0-21swapper/611:11:276
100163899130,13cyclictest0-21swapper/510:10:145
100163899130,0cyclictest0-21swapper/511:12:215
100163899130,0cyclictest0-21swapper/509:34:085
1001639991212,0cyclictest0-21swapper/611:58:076
100163999120,0cyclictest0-21swapper/610:12:586
1001638991212,0cyclictest0-21swapper/511:55:045
100163899120,0cyclictest0-21swapper/511:44:125
1001641991111,0cyclictest0-21swapper/711:57:057
1001641991110,0cyclictest0-21swapper/709:34:437
100164199110,10cyclictest1696195-21snmpd11:44:067
100164199110,10cyclictest1696195-21snmpd08:15:317
100164199110,10cyclictest1696195-21snmpd08:15:317
100164199110,10cyclictest1696195-21snmpd07:24:187
1001639991111,0cyclictest0-21swapper/612:20:406
100163899110,0cyclictest0-21swapper/507:34:285
1001636991111,0cyclictest0-21swapper/412:20:464
1001636991111,0cyclictest0-21swapper/407:28:104
100164199100,9cyclictest777-21dbus-daemon09:23:437
100164199100,9cyclictest1696195-21snmpd08:11:257
100164199100,9cyclictest1003198-21kthreadcore06:59:017
100164199100,8cyclictest1550480-21munin-plugin-st11:03:427
100164199100,3cyclictest1646426-21rm11:39:387
100164199100,3cyclictest1378574-21latency_hist09:53:427
100164199100,2cyclictest38314-10wireplumber11:12:037
100164199100,2cyclictest1746355-21ssh12:22:307
100164199100,2cyclictest1513943-21journal-offline10:48:437
100164199100,1cyclictest954011-21systemd-resolve07:35:437
100164199100,1cyclictest1252412-21smart_sda08:59:147
1001639991010,0cyclictest0-21swapper/611:46:566
1001639991010,0cyclictest0-21swapper/609:00:086
100163999100,0cyclictest0-21swapper/607:49:206
1001638991010,0cyclictest0-21swapper/507:49:175
1001636991010,0cyclictest0-21swapper/411:41:314
100163699100,10cyclictest0-21swapper/407:49:174
10016419990,8cyclictest1476846-21munin-run10:33:427
10016419990,8cyclictest1464549-21munin-run10:28:427
10016419990,8cyclictest1452425-21cut10:23:437
10016419990,8cyclictest1174259-21/usr/sbin/munin08:24:047
10016419990,6cyclictest918-21lldpd07:48:557
10016419990,2cyclictest777-21dbus-daemon12:13:427
10016419990,2cyclictest1624498-21cat11:33:427
10016419990,2cyclictest1599924-21date11:23:427
10016419990,2cyclictest1415567-21latency_hist10:08:427
10016419990,2cyclictest1354119-21latency_hist09:43:427
10016419990,1cyclictest1054973-21exim407:23:437
10016399999,0cyclictest0-21swapper/608:26:426
10016399999,0cyclictest0-21swapper/608:13:096
10016389999,0cyclictest0-21swapper/507:26:355
10016419980,7cyclictest1562717-21crond11:08:427
10016419980,7cyclictest1526005-21latency_hist10:53:427
10016419980,7cyclictest1366283-21cat09:48:437
10016419980,7cyclictest1001146-21cyclictest10:58:437
10016419980,4cyclictest1501727-21cat10:43:427
10016419980,2cyclictest1759747-21latency_hist12:28:427
10016419980,2cyclictest1391033-21cat09:58:437
10016419980,2cyclictest1144422-21latency_hist08:08:437
10016419980,1cyclictest1636650-21munin-plugin-st11:38:427
10016419980,1cyclictest1612035-21sh11:28:427
10016419980,1cyclictest1489359-21cat10:38:437
10016419980,1cyclictest1440323-21cut10:18:427
10016419980,1cyclictest1403351-21date10:03:437
10016419980,1cyclictest1317234-21cat09:28:437
10016419980,1cyclictest1280420-21date09:13:437
10016419980,1cyclictest1025490-21cat07:08:437
10016399988,0cyclictest0-21swapper/611:41:066
10016399988,0cyclictest0-21swapper/608:15:316
10016399988,0cyclictest0-21swapper/608:15:316
10016399988,0cyclictest0-21swapper/607:25:136
10016389988,0cyclictest0-21swapper/508:18:085
10016389988,0cyclictest0-21swapper/508:18:085
10016389988,0cyclictest0-21swapper/508:11:225
10016369988,0cyclictest0-21swapper/411:43:434
10016369988,0cyclictest0-21swapper/409:36:584
10016419970,6cyclictest1587401-21systemd-run11:18:427
10016419970,6cyclictest1329446-21sendmail09:33:427
10016419970,6cyclictest1329446-21sendmail09:33:427
10016419970,6cyclictest1233316-21sendmail08:53:437
10016419970,1cyclictest68-21ksoftirqd/707:18:437
10016389977,0cyclictest0-21swapper/512:19:025
10016389977,0cyclictest0-21swapper/506:58:505
10016369977,0cyclictest0-21swapper/411:56:114
10016369977,0cyclictest0-21swapper/407:36:034
10016419960,5cyclictest1501415-21latency_hist10:43:427
10016419960,5cyclictest1035419-21latency_hist07:13:437
10016419960,3cyclictest94014-21systemd-journal12:08:427
10016419960,3cyclictest94014-21systemd-journal08:48:437
10016419960,3cyclictest94014-21systemd-journal08:38:437
10016419960,1cyclictest1673864-21latency_hist11:53:427
10016399960,5cyclictest0-21swapper/607:18:436
10016399960,4cyclictest0-21swapper/612:03:426
10016389966,0cyclictest0-21swapper/511:43:055
10016389966,0cyclictest0-21swapper/508:27:175
10016369966,0cyclictest0-21swapper/408:12:284
10016369962,3cyclictest0-21swapper/409:53:424
10016419950,4cyclictest1292715-21date09:18:437
10016419950,4cyclictest1267906-21cat09:08:427
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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