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2022-05-27 - 17:52

x86 Intel Core i5-8265UE @1600 MHz, Linux 5.10.41-rt42 (Profile)

Latency plot of system in rack #a, slot #8
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 -Sp99 -i200 -h400 -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 rackaslot8.osadl.org (updated Fri May 27, 2022 12:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
325342284258,16sleep20-21swapper/207:08:172
324592279248,21sleep00-21swapper/007:07:180
307122273244,19sleep10-21swapper/107:05:101
326462263232,19sleep30-21swapper/307:09:343
260572620,0sleep20-21swapper/211:28:312
324122580,0sleep00-21swapper/009:15:150
223502560,0sleep30-21swapper/312:05:123
217322560,0sleep30-21swapper/309:47:493
199652560,0sleep10-21swapper/107:50:151
290712550,0sleep00-21swapper/009:52:080
207692550,0sleep20-21swapper/210:06:352
64952530,0sleep00-21swapper/012:35:010
164672490,0sleep30-21swapper/310:43:273
33799162,10cyclictest515-21ssh11:12:570
33799160,13cyclictest10663-21ssh11:58:000
33799150,14cyclictest3025-21ssh10:55:100
33799150,12cyclictest29569-21ssh12:29:200
33799150,12cyclictest22986-21diskmemload11:51:010
33799150,11cyclictest23044-21ssh09:29:330
33799142,9cyclictest22986-21diskmemload10:39:350
33799141,10cyclictest6246-21ssh09:38:380
33799141,10cyclictest12699-21ssh11:40:060
33799140,9cyclictest1289-21sed07:10:140
33799140,8cyclictest25910-21rm10:29:530
33799140,13cyclictest9858-21apt-get10:20:020
33799140,13cyclictest27201-21apt-get10:50:100
33799140,11cyclictest917-21ssh12:11:190
33799140,11cyclictest8189-21ssh12:15:310
33799140,11cyclictest7326-21ssh09:59:000
33799140,11cyclictest27501-21ssh12:08:130
33799140,11cyclictest23737-21ssh10:08:530
33799140,11cyclictest21249-21diskmemload12:04:470
33799140,11cyclictest19815-21sed09:00:190
33799140,11cyclictest16127-21gzip07:40:180
33799140,11cyclictest14169-21ssh11:20:440
33799140,10cyclictest19558-21ssh12:22:570
33799140,10cyclictest19507-21ssh11:05:100
33799140,10cyclictest13917-21ssh11:00:590
33799140,10cyclictest10676-21ssh12:37:000
33799140,0cyclictest22986-21diskmemload09:21:150
68092130,0sleep30-21swapper/309:19:463
33799131,7cyclictest5030-21/usr/sbin/munin11:15:210
33799131,11cyclictest13794-21apt-get08:50:020
33799130,9cyclictest1129-21grep08:20:160
33799130,8cyclictest8835-21grep07:25:170
33799130,8cyclictest8835-21grep07:25:170
33799130,8cyclictest6394-21sed08:30:210
33799130,8cyclictest4606-21grep07:15:200
33799130,8cyclictest17689-21mailstats08:55:210
33799130,8cyclictest1521-21ssh10:15:120
33799130,11cyclictest21137-21ssh11:45:010
33799130,10cyclictest8907-21ssh10:00:010
33799130,10cyclictest7375-21chrt07:21:160
33799130,10cyclictest557-21ssh11:32:290
33799130,10cyclictest32250-21taskset08:16:220
33799130,10cyclictest30688-21ssh09:14:350
33799130,10cyclictest28045-21sshd08:09:260
33799130,10cyclictest27015-21ssh11:29:160
33799130,10cyclictest23795-21sh10:47:450
33799130,10cyclictest15290-21ssh10:42:330
33799130,10cyclictest14301-21taskset07:36:110
33799121,7cyclictest28379-21/usr/sbin/munin10:30:220
33799120,9cyclictest668-21runrttasks08:11:230
33799120,8cyclictest3606-21ntpq08:25:160
33799120,8cyclictest26831-21ssh09:30:510
33799120,8cyclictest10729-21ssh11:38:450
33799120,7cyclictest8511-21grep08:35:190
33799120,7cyclictest8454-21ssh09:40:090
33799120,7cyclictest26753-21ntpq10:10:180
33799120,7cyclictest12797-21ntpq08:45:180
33799120,7cyclictest0-21swapper/007:45:120
33799120,6cyclictest17832-21sh09:45:180
33799120,0cyclictest21016-21apt-get09:05:110
33799110,7cyclictest668-21runrttasks07:50:530
33799110,7cyclictest10823-21/usr/sbin/munin08:40:200
33799110,6cyclictest10776-21hddtemp_smartct07:30:130
33799100,9cyclictest22930-21grep07:55:210
33799100,6cyclictest23906-21find08:00:150
3499998,1cyclictest34-21ksoftirqd/312:39:593
3499993,3cyclictest508-21dbus-daemon12:10:043
3449993,4cyclictest283-21systemd-journal11:11:182
3449990,8cyclictest14902-21ssh10:03:262
1405290,0sleep20-21swapper/210:54:082
3499987,1cyclictest34-21ksoftirqd/310:05:013
3499987,1cyclictest34-21ksoftirqd/307:50:023
3499987,1cyclictest34-21ksoftirqd/307:20:013
3499985,1cyclictest141rcu_preempt08:00:143
3499984,2cyclictest283-21systemd-journal07:27:473
3499984,2cyclictest283-21systemd-journal07:27:473
3449984,3cyclictest508-21dbus-daemon08:46:102
3449983,3cyclictest283-21systemd-journal10:57:572
3409984,3cyclictest283-21systemd-journal11:20:001
3409982,4cyclictest13241-21systemctl12:00:001
3695270,0sleep20-21swapper/211:34:552
3499975,1cyclictest13921-21cron12:20:003
3499973,3cyclictest508-21dbus-daemon10:20:013
3499973,3cyclictest283-21systemd-journal09:37:283
3499973,3cyclictest1728-21sshd10:34:513
3499973,3cyclictest16597-21snmpd08:30:263
3499973,3cyclictest16597-21snmpd07:44:253
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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