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2021-10-16 - 14:18

Pentium 75 - 200, Linux 4.18.7-rt5 (Profile)

Latency plot of system in rack #3, slot #5
Data to construct the above plot have been generated using the RT test utility cyclictest.
Command line: cyclictest -l25000000 -m -n -a0 -t1 -p99 -i800 -h1000 -q
Total number of samples: 25 million
Resolution of latency scale: reduced 
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack3slot5.osadl.org (updated Sun Oct 03, 2021 12:44:28)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
166519940534,0cyclictest8197-21latency_hist09:00:100
166519940481,0cyclictest0-21swapper10:56:240
166519940036,0cyclictest20539-21latency_hist09:55:140
166519939693,0cyclictest851-21cron10:50:020
166519939470,0cyclictest10409-21munin-run09:10:030
166519939385,0cyclictest31001-21munin-run10:40:070
166519939235,0cyclictest20240-21switchtime12:11:400
166519939159,0cyclictest31618-21awk08:20:030
166519938738,0cyclictest31198-21irqstats10:40:330
166519938728,0cyclictest18612-21sh12:05:420
166519938686,0cyclictest28276-21ssh10:27:170
166519938686,0cyclictest10404-21diskmemload11:35:150
166519938683,0cyclictest1877-21sort08:31:020
166519938642,0cyclictest22625-21ssh10:05:270
166519938488,0cyclictest16505-21ssh09:36:210
166519938472,0cyclictest27209-21sendmail-msp12:40:090
166519938386,0cyclictest13778-21sh11:45:030
166519938338,0cyclictest22112-21latency_hist12:20:170
166519938328,0cyclictest9337-21sed11:26:270
166519938178,0cyclictest487-21chrt08:25:290
166519938043,0cyclictest1143-21jbd2/sda1-807:10:100
166519937944,0cyclictest28941-21apt-get10:30:540
166519937775,0cyclictest2147-21ssh10:55:040
166519937639,0cyclictest10598-21irqstats09:10:300
166519937535,0cyclictest8124-21apt-get11:20:500
166519937435,0cyclictest1143-21jbd2/sda1-812:05:120
166519937236,0cyclictest14818-21munin-run09:30:080
166519937235,0cyclictest22652-21munin-run07:40:090
166519937161,0cyclictest15691-21ssh09:32:120
166519937136,0cyclictest8148-21latency_hist09:00:140
166519937130,0cyclictest26482-21awk07:56:080
166519937129,0cyclictest27453-21sh10:25:120
166519937035,0cyclictest19439-21munin-run09:50:080
1665199370103,0cyclictest21997-21cron12:20:020
166519936935,0cyclictest1143-21jbd2/sda1-811:05:150
166519936859,0cyclictest13060-21ssh09:21:070
166519936836,0cyclictest23550-21ntp_states12:25:400
166519936836,0cyclictest14822-21latency_hist11:50:100
166519936781,0cyclictest10404-21diskmemload11:02:270
166519936633,0cyclictest11559-21chrt09:15:160
166519936628,0cyclictest6635-21latency_hist11:15:120
1665199366109,0cyclictest11460-21munin-run11:35:040
166519936538,0cyclictest17095-21sh12:00:020
166519936530,0cyclictest3668-21sh08:40:020
166519936431,0cyclictest32736-21cron08:25:010
166519936359,0cyclictest199050irq/15-NE200010:00:190
166519936279,0cyclictest15216-21cpu11:51:200
166519936190,0cyclictest19928-21df_inode09:51:380
166519935829,0cyclictest24347-21ssh10:12:100
166519935774,0cyclictest25372-21ssh10:16:380
166519935729,0cyclictest1143-21jbd2/sda1-808:50:090
166519935691,0cyclictest25884-21cron12:35:010
166519935574,0cyclictest1842750sshd07:20:550
166519935470,0cyclictest0-21swapper09:44:510
166519935376,0cyclictest6546-21cron11:15:020
166519935249,0cyclictest22639-21cron07:40:140
1665199352100,0cyclictest26004-21cron07:55:010
166519935085,0cyclictest5292-21switchtime08:46:100
166519934929,0cyclictest1143-21jbd2/sda1-807:30:080
166519934689,0cyclictest21524-21sh07:35:010
166519934631,0cyclictest1143-21jbd2/sda1-808:10:100
166519934553,0cyclictest28126-21sshd08:02:540
1665199342103,0cyclictest24174-21df_inode07:45:590
166519934064,0cyclictest2299-21nscd08:10:020
166519933836,0cyclictest3858-21irqstats08:40:220
166519933788,0cyclictest17470-21latency_hist07:15:150
166519932385,0cyclictest16707-21latency_hist07:10:070
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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