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2023-01-27 - 14:47

x86 AMD Geode @500 MHz, Linux 4.9.47-rt37-geode (Profile)

Latency plot of system in rack #4, slot #3
Data to construct the above plot have been generated using the RT test utility cyclictest.
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
Compare latency of primary with shadow system
Characteristics of the 100, Linux 4.9.20-rt16, x86_64 highest latencies:
System rack4slot3.osadl.org (updated Fri Jan 27, 2023 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
279569915715,131cyclictest32386-21awk09:30:360
279569915614,131cyclictest14535-21munin-node11:55:210
279569915415,129cyclictest6038-21munin-node08:10:150
279569915415,129cyclictest30570-21munin-node09:25:230
279569915414,130cyclictest29614-21munin-node07:44:490
279569915215,126cyclictest18023-21ls12:05:300
279569915214,128cyclictest27307-21mailstats09:15:210
279569915114,126cyclictest26495-21latency_hist09:14:290
279569915015,124cyclictest28500-21fw_packets09:19:540
279569914814,39cyclictest13482-21seq11:52:170
279569914715,122cyclictest15559-21cut11:59:410
279569914614,122cyclictest15248-21ls10:19:290
279569914515,31cyclictest5263-21latency_hist08:09:290
279569914515,120cyclictest22451-21kernelversion12:20:040
279569914514,121cyclictest7529-21runrttasks09:54:540
279569914115,59cyclictest3549-21runrttasks12:24:440
279569914115,116cyclictest3693-21runrttasks13:00:370
279569914114,117cyclictest845-21munin-node11:14:480
279569914015,114cyclictest18919-21sshd10:29:560
279569913915,49cyclictest647-21wget09:34:460
279569913914,36cyclictest29296-21sshd07:42:560
279569913814,114cyclictest6490-21processes11:30:280
279569913714,54cyclictest31638-21awk12:49:280
279569913714,49cyclictest32555-21sendmail_mailtr12:50:250
279569913614,55cyclictest2055-21munin-node07:59:580
279569913517,55cyclictest32589-21chrt07:53:170
279569913315,49cyclictest386-21munin-node07:55:350
279569913315,22cyclictest16127-21sensors10:20:250
279569913314,60cyclictest10708-21munin-node08:25:040
279569913215,49cyclictest25242-21munin-node12:30:100
26325213219,27sleep026338-21munin-node07:34:390
279569913116,48cyclictest20024-21munin-node08:54:520
279569913115,48cyclictest8997-21munin-node11:40:160
279569913114,53cyclictest28593-21fschecks_count10:59:590
279569913113,50cyclictest20370-21df10:34:490
279569913016,53cyclictest4726-21iostat_ios13:05:030
279569913015,51cyclictest29079-21needreboot12:40:100
279569913015,48cyclictest2339-40yum-updatesd-he12:58:200
279569913014,57cyclictest13066-21unixbench_singl10:10:330
279569912916,48cyclictest15715-21grep08:40:110
279569912914,31cyclictest20365-21munin-node12:14:390
279569912815,48cyclictest22454-21sensors_volt09:00:230
279569912715,49cyclictest8967-21fschecks_time08:19:590
279569912714,51cyclictest18679-21munin-node08:50:040
279569912714,33cyclictest23449-21munin-node10:45:330
279569912615,49cyclictest25530-21iostat_ios10:50:120
279569912615,19cyclictest27063-21df_abs12:34:520
279569912518,19cyclictest3233-21snmpd10:28:310
279569912515,47cyclictest7178-21df08:14:460
279569912314,57cyclictest29963-21munin-node11:05:100
279569912314,50cyclictest3233-21snmpd09:43:120
279569912215,50cyclictest2823-21if_err_eth011:20:040
279569911214,53cyclictest0-21swapper11:45:580
279569910017,74cyclictest9135-21grep09:59:530
27956999915,74cyclictest18744-21munin-node12:10:350
27956999914,75cyclictest27118-21munin-node10:55:110
27956999815,73cyclictest11634-21sshd10:06:560
27956999614,73cyclictest16773-21munin-node08:45:230
27956999514,72cyclictest4549-21netstat09:45:180
27956999415,69cyclictest5493-21runrttasks11:28:290
27956999414,70cyclictest11970-21wget08:29:430
27956999314,69cyclictest23318-21hostname09:04:460
27956999114,68cyclictest673-21latency_hist11:14:300
27956999014,67cyclictest23035-21seq10:42:040
27956999014,39cyclictest8870-21latency_hist11:39:300
27956998914,65cyclictest5886-21fschecks_time09:49:560
27956998713,65cyclictest13731-21munin-node08:34:520
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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