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2023-02-06 - 19:49

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 highest latencies:
System rack0slot2.osadl.org (updated Mon Feb 06, 2023 12:43:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
402480699143,8cyclictest918-21lldpd09:32:467
402480699139,3cyclictest4188483-21cat08:18:267
402480699134,7cyclictest918-21lldpd09:23:167
4024806991311,1cyclictest1696195-21snmpd12:12:427
4024798991313,0cyclictest0-21swapper/512:12:105
402479099130,13cyclictest0-21swapper/412:11:194
402479099130,0cyclictest0-21swapper/412:15:064
402479099130,0cyclictest0-21swapper/407:03:254
402480699129,2cyclictest1696195-21snmpd07:31:247
402480699128,3cyclictest1696195-21snmpd10:04:247
402480699128,3cyclictest1696195-21snmpd10:04:247
402480699124,7cyclictest336402-21ssh11:03:247
402480699124,3cyclictest414776-21kthreadcore11:33:287
402480699123,7cyclictest918-21lldpd10:32:357
402480699123,4cyclictest4116400-21cut07:38:317
4024803991212,0cyclictest0-21swapper/612:13:156
4024803991212,0cyclictest0-21swapper/611:04:596
402480399120,12cyclictest0-21swapper/608:56:026
4024798991212,0cyclictest0-21swapper/509:27:445
4024790991212,0cyclictest0-21swapper/411:40:164
402480699118,2cyclictest1696195-21snmpd11:42:567
402480699117,3cyclictest4178616-21cat08:13:247
402480699117,3cyclictest163126-21cat09:53:037
402480699114,6cyclictest506979-21fschecks_count12:13:227
402480699112,7cyclictest751-17auditd07:08:017
402480699110,3cyclictest918-21lldpd08:56:587
402479899110,0cyclictest0-21swapper/507:39:445
402479099110,0cyclictest0-21swapper/408:55:504
402479099110,0cyclictest0-21swapper/408:18:004
402480699106,3cyclictest84838-21munin-run09:03:037
402480699106,3cyclictest84838-21munin-run09:03:037
402480699106,3cyclictest211922-21munin-run10:13:037
402480699104,4cyclictest38314-10wireplumber11:23:037
402480699104,4cyclictest38314-10wireplumber09:23:047
402480699104,4cyclictest38314-10wireplumber07:53:037
402480699102,7cyclictest4088238-21basename07:28:047
402480699102,7cyclictest298081-21latency_hist10:48:037
402480699100,9cyclictest444769-21latency_hist11:48:037
402480699100,9cyclictest1696195-21snmpd08:48:227
402480699100,5cyclictest72484-21diskmemload09:13:047
402480699100,3cyclictest94014-21systemd-journal10:23:037
4024803991010,0cyclictest0-21swapper/609:32:366
4024803991010,0cyclictest0-21swapper/607:13:046
4024803991010,0cyclictest0-21swapper/607:13:046
402480399100,0cyclictest0-21swapper/608:49:246
4024798991010,0cyclictest0-21swapper/512:15:575
4024798991010,0cyclictest0-21swapper/510:05:155
4024798991010,0cyclictest0-21swapper/510:05:155
4024798991010,0cyclictest0-21swapper/508:21:125
4024798991010,0cyclictest0-21swapper/508:17:445
4024790991010,0cyclictest0-21swapper/407:28:584
40248069994,4cyclictest147615-21latency_hist09:43:037
40248069994,4cyclictest104306-21cat09:18:047
40248069992,6cyclictest457298-21cat11:53:037
40248069991,7cyclictest481436-21latency_hist12:03:037
40248069991,7cyclictest358833-21latency_hist11:13:037
40248069991,7cyclictest358833-21latency_hist11:13:037
40248069991,7cyclictest322499-21sendmail10:58:047
40248069991,7cyclictest310411-21latency_hist10:53:037
40248069990,8cyclictest4058525-21cat07:13:047
40248069990,8cyclictest4058525-21cat07:13:047
40248069990,8cyclictest4024783-21cyclictest10:43:037
40248069990,8cyclictest248734-21latency_hist10:28:037
40248069990,8cyclictest135216-21systemd-run09:38:037
40248069990,4cyclictest493745-21latency_hist12:08:037
40248069990,4cyclictest469339-21latency_hist11:58:037
40248069990,4cyclictest187745-21sed10:03:037
40248069990,4cyclictest187745-21sed10:03:037
40248069990,2cyclictest94014-21systemd-journal11:33:037
40248039999,0cyclictest0-21swapper/610:06:206
40248039999,0cyclictest0-21swapper/610:06:206
40248039999,0cyclictest0-21swapper/609:27:056
40248039999,0cyclictest0-21swapper/607:28:246
40248039999,0cyclictest0-21swapper/607:03:186
40247989999,0cyclictest0-21swapper/508:51:285
40247989999,0cyclictest0-21swapper/507:28:145
40247909999,0cyclictest0-21swapper/409:27:314
40247909999,0cyclictest0-21swapper/407:40:474
40248069984,3cyclictest861-21runrttasks08:43:037
40248069983,4cyclictest4177484-21cut08:13:037
40248069983,4cyclictest4078610-21cat07:23:047
40248069983,4cyclictest224594-21latency_hist10:18:047
40248069983,3cyclictest38314-10wireplumber09:58:047
40248069982,4cyclictest94014-21systemd-journal11:18:037
40248069982,4cyclictest4157533-21sh08:03:037
40248069981,6cyclictest4167364-21latency_hist08:08:047
40248069981,6cyclictest23332-21sed08:33:047
40248069980,7cyclictest530434-21sed12:23:037
40248069980,7cyclictest4108215-21latency_hist07:38:037
40248069980,7cyclictest4024376-21latency_hist06:58:047
40248069980,7cyclictest33084-21cat08:38:047
40248069980,5cyclictest94014-21systemd-journal11:03:037
40248069980,3cyclictest395989-21sed11:28:037
40248039988,0cyclictest0-21swapper/608:19:086
40247989987,1cyclictest0-21swapper/509:31:315
40247909988,0cyclictest0-21swapper/409:31:184
40248069973,3cyclictest273490-21latency_hist10:38:037
40248069972,5cyclictest4147912-21cat07:58:047
40248069972,4cyclictest4127976-21cut07:48:037
40248069972,3cyclictest94014-21systemd-journal08:48:047
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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