You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2023-03-27 - 13:23

x86 Intel Xeon E3-1270 v2 @3500 MHz, Linux 4.19.25-rt16 (Profile)

Latency plot of system in rack #3, slot #0
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
Characteristics of the 100, highest latencies:
System rack3slot0.osadl.org (updated Mon Mar 27, 2023 00:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
272022850,0sleep20-21swapper/221:28:182
272022850,0sleep20-21swapper/221:28:182
390224725,8sleep50-21swapper/519:01:375
390224725,8sleep50-21swapper/519:01:375
386624229,9sleep70-21swapper/719:01:067
386624229,9sleep70-21swapper/719:01:067
367424226,12sleep60-21swapper/618:58:336
367424226,12sleep60-21swapper/618:58:336
396424122,15sleep00-21swapper/019:02:280
396424122,15sleep00-21swapper/019:02:280
392924028,9sleep30-21swapper/319:01:593
392924028,9sleep30-21swapper/319:01:593
378624027,9sleep40-21swapper/418:59:594
378624027,9sleep40-21swapper/418:59:594
372224029,8sleep20-21swapper/218:59:092
372224029,8sleep20-21swapper/218:59:092
372124027,9sleep10-21swapper/118:59:081
372124027,9sleep10-21swapper/118:59:081
415799179,3cyclictest27039-21kworker/7:120:02:497
415799179,3cyclictest27039-21kworker/7:120:02:497
415799176,6cyclictest29588-21kworker/7:122:15:477
415799176,6cyclictest29588-21kworker/7:122:15:477
414799170,7cyclictest13299-21sshd21:13:544
414799170,7cyclictest13299-21sshd21:13:544
414599170,5cyclictest0-21swapper/223:59:512
414599170,5cyclictest0-21swapper/223:59:512
414499170,1cyclictest0-21swapper/122:43:591
414499160,8cyclictest0-21swapper/121:28:221
414499160,8cyclictest0-21swapper/121:28:221
415799154,6cyclictest927-21kworker/7:220:14:437
415799154,6cyclictest927-21kworker/7:220:14:437
415799154,6cyclictest27039-21kworker/7:120:04:297
415799154,6cyclictest27039-21kworker/7:120:04:297
414799150,2cyclictest10550-21systemd23:12:514
414799150,2cyclictest10550-21systemd23:12:514
414499150,1cyclictest0-21swapper/122:12:051
414499150,1cyclictest0-21swapper/121:44:381
414499150,1cyclictest0-21swapper/121:44:381
286682150,1sleep773-21ksoftirqd/723:59:347
286682150,1sleep773-21ksoftirqd/723:59:347
415799146,6cyclictest7462-21kworker/7:119:13:457
415799146,6cyclictest7462-21kworker/7:119:13:457
415799146,6cyclictest2824-21kworker/7:322:07:057
415799146,6cyclictest2824-21kworker/7:322:07:057
415799146,6cyclictest26609-21kworker/7:323:28:217
415799146,6cyclictest26609-21kworker/7:323:28:217
415799146,6cyclictest15269-21kworker/7:222:53:517
415799146,6cyclictest15269-21kworker/7:222:51:517
415799146,6cyclictest15269-21kworker/7:222:51:517
415799146,6cyclictest1299-21kworker/7:300:08:437
415799146,5cyclictest6971-21kworker/7:100:20:217
415799146,5cyclictest6971-21kworker/7:100:20:217
415799146,5cyclictest6740-21kworker/7:220:23:097
415799146,5cyclictest19497-21kworker/7:123:55:377
415799146,5cyclictest19497-21kworker/7:123:55:377
415799146,5cyclictest14025-21kworker/7:019:30:317
415799143,6cyclictest22295-21kworker/7:019:54:317
414699144,6cyclictest7630-21kworker/3:219:13:393
414699144,6cyclictest7630-21kworker/3:219:13:393
414599140,9cyclictest29297-21grep22:00:392
414599140,9cyclictest29297-21grep22:00:392
414599140,9cyclictest0-21swapper/222:55:592
414499140,1cyclictest0-21swapper/121:38:321
414499140,1cyclictest0-21swapper/121:38:321
415799139,0cyclictest23264-21kworker/7:221:58:577
415799139,0cyclictest23264-21kworker/7:221:58:577
415799138,2cyclictest14495-21kworker/7:321:51:277
415799135,6cyclictest6634-21kworker/7:219:04:517
415799135,6cyclictest3104-21kworker/7:021:45:337
415799135,6cyclictest3104-21kworker/7:021:45:337
415799135,6cyclictest30570-21kworker/7:321:17:257
415799135,6cyclictest30570-21kworker/7:321:17:257
415799135,6cyclictest29534-21kworker/7:121:02:157
415799135,6cyclictest29534-21kworker/7:121:02:157
415799135,6cyclictest26036-21kworker/7:221:28:157
415799135,6cyclictest26036-21kworker/7:221:28:157
415799135,6cyclictest24518-21kworker/7:220:53:377
415799135,6cyclictest23903-21kworker/7:222:31:177
415799135,6cyclictest23903-21kworker/7:222:31:177
415799135,6cyclictest18476-21kworker/7:119:47:037
414799130,6cyclictest692-21dbus-daemon22:55:594
414799130,5cyclictest0-21swapper/421:13:034
414799130,5cyclictest0-21swapper/421:13:034
414799130,1cyclictest0-21swapper/422:20:094
414799130,1cyclictest0-21swapper/422:20:094
4146991311,1cyclictest41-21ksoftirqd/321:03:193
4146991311,1cyclictest41-21ksoftirqd/321:03:193
414599130,9cyclictest25135-21systemd23:25:392
414599130,9cyclictest25135-21systemd23:25:392
414599130,9cyclictest1-21systemd22:11:222
414599130,7cyclictest782-21runrttasks23:22:372
414599130,7cyclictest782-21runrttasks23:22:372
414599130,6cyclictest732-21NetworkManager22:42:042
414599130,6cyclictest732-21NetworkManager22:42:042
414599130,5cyclictest0-21swapper/222:26:272
414599130,5cyclictest0-21swapper/222:26:272
148362130,0sleep60-21swapper/600:18:396
148362130,0sleep60-21swapper/600:18:396
415799127,3cyclictest21249-21kworker/7:020:51:417
415799127,3cyclictest21249-21kworker/7:020:51:417
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional