You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2022-07-03 - 08:30

x86 Intel Celeron M @1500 MHz, Linux 5.15.32-rt39 (Profile)

Latency plot of system in rack #6, slot #5
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 -a0 -t1 -p99 -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 all highest latencies:
System rack6slot5.osadl.org (updated Sun Jul 03, 2022 00:46:08)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
90999965393605,2931cyclictest16815-21kworker/0:219:12:170
90999962815,598cyclictest19120-21ssh22:19:130
90999962314,594cyclictest31713-19ata_id20:11:060
88612579183,204sleep00-21swapper19:08:410
90999953759,218cyclictest0-21swapper22:59:020
90999952414,495cyclictest4474-21ssh00:14:260
90999952315,492cyclictest14374-21sh23:21:200
90999951715,487cyclictest319652sleep022:48:460
90999951214,483cyclictest21633-21ssh23:37:160
90999950714,478cyclictest4906-21runrttasks21:45:170
90999950514,429cyclictest20633-21ssh21:10:260
90999949731,255cyclictest20369-21diskmemload22:34:060
90999949535,397cyclictest14041-21head00:35:510
90999948335,266cyclictest10493-21ssh23:12:150
90999946592,360cyclictest26995-21ssh23:50:480
90999946434,360cyclictest27691-21ssh22:39:480
90999946235,412cyclictest22966-21ssh23:40:500
90999946136,363cyclictest713-21rm22:51:020
90999946135,355cyclictest16280-21ps22:11:470
90999946134,365cyclictest11805-21sshd19:17:350
90999945935,409cyclictest26163-21sed19:56:030
90999945935,354cyclictest20369-21diskmemload22:07:070
90999945735,406cyclictest15545-21ssh00:40:340
90999945535,358cyclictest17768-19edd_id21:01:000
90999945435,245cyclictest52072chrt20:26:310
90999945357,382cyclictest17775-21mailstats19:35:120
90999945236,346cyclictest20369-21diskmemload23:47:410
90999945235,402cyclictest15993-21nscd23:29:080
90999945235,346cyclictest9885-21rm00:25:540
90999945136,355cyclictest20369-21diskmemload23:02:250
90999945035,354cyclictest15606-21cat20:55:400
90999944968,368cyclictest11197-21sed22:00:540
90999944835,343cyclictest13311-21latency_hist23:20:070
90999944834,351cyclictest20369-21diskmemload00:09:440
90999944735,351cyclictest10258-21chrt21:59:300
90999944670,362cyclictest13-21rcuc/019:45:560
90999944560,371cyclictest12473-21ssh00:31:220
90999944535,348cyclictest20369-21diskmemload23:07:260
90999944470,88cyclictest32154-21perl00:01:450
90999944469,88cyclictest13-21rcuc/021:41:230
90999944435,349cyclictest25945-21cpuspeed21:21:280
90999944264,364cyclictest13-21rcuc/021:26:480
90999944134,246cyclictest30054-21ssh21:30:510
90999944015,401cyclictest917-21rm21:38:140
90999943852,204cyclictest11-21ksoftirqd/022:25:060
90999943836,387cyclictest20369-21diskmemload23:33:470
90999943764,88cyclictest3755-21avahi-daemon00:17:370
90999943735,332cyclictest27146-21cut20:00:210
90999943575,347cyclictest345450irq/10-yenta19:30:160
90999943334,337cyclictest1540-21kworker/u2:100:21:040
90999943263,369cyclictest0-21swapper20:16:220
90999942855,304cyclictest28844-21sed23:55:280
90999942750,87cyclictest24655-21ssh21:19:190
90999942016,236cyclictest6086-21ssh21:50:170
90999941656,360cyclictest0-21swapper19:23:450
90999941348,305cyclictest30066-21munin-node20:06:160
90999940314,375cyclictest21632-21copy22:27:100
90999939855,283cyclictest4261-21nmbd19:51:090
90999939535,337cyclictest7602-21munin-node20:35:140
90999939330,340cyclictest18946-21gltestperf21:05:270
90999939235,342cyclictest11265-21munin-node20:45:110
90999939046,284cyclictest11-21ksoftirqd/022:43:520
90999938731,356cyclictest0-21swapper20:20:580
90999938454,270cyclictest9387-21copy20:42:080
90999937953,153cyclictest15264-21expr19:26:130
90999937732,283cyclictest19620-21grep19:40:130
90999937634,281cyclictest6310-21grep20:30:370
90999936815,353cyclictest0-21swapper20:54:170
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional