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2023-01-28 - 08:27

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 highest latencies:
System rack4slot3.osadl.org (updated Sat Jan 28, 2023 00:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
15874210914,36sleep015903-21ntp_kernel_pll_20:45:150
10004210915,18sleep010006-21munin-node23:45:320
26846210414,29sleep026676-21munin-node21:19:520
12458210413,18sleep012464-21iostat_ios20:35:010
264699910315,78cyclictest5468-21chrt21:53:330
12736210314,16sleep012742-21sh23:54:590
11920210114,22sleep011978-21wc20:34:310
17921210015,22sleep017928-21vmstat20:50:340
912029914,16sleep09138-21df_abs22:04:460
40752990,4sleep04074-21sed20:09:450
26469999915,75cyclictest1058-21latency20:00:050
26469999915,74cyclictest20517-21sh20:59:550
26469999914,76cyclictest30799-21seq21:30:340
26469999914,75cyclictest7243-21seq23:38:200
26469999913,46cyclictest12327-21wc23:54:310
2265429914,16sleep022682-21timerandwakeup21:05:280
130929915,17sleep01348-21netstat21:40:110
798129814,16sleep07982-21ntp_states22:00:170
2670629814,16sleep026707-21diskstats19:39:520
26469999815,74cyclictest18378-21seq00:11:160
26469999814,75cyclictest3549-21runrttasks19:52:390
26469999814,48cyclictest3549-21runrttasks22:16:450
42029714,16sleep0443-21grep19:59:310
26469999715,73cyclictest5756-21fschecks_count20:14:520
26469999715,73cyclictest3549-21runrttasks22:13:450
26469999714,76cyclictest1691-21netstat01:00:100
26469999714,74cyclictest7759-21fschecks_count23:39:510
26469999714,74cyclictest2874-21cpu01:04:430
26469999714,74cyclictest22908-21munin-node00:25:230
26469999714,74cyclictest20200-21runrttasks22:39:210
26469999714,74cyclictest15640-21munin-node00:05:030
26469999714,73cyclictest20731-21diskstats00:19:540
2423629713,16sleep024239-21ntp_states22:50:150
1708529714,17sleep017132-21aten_r4power_en22:29:430
1446929714,16sleep014482-21ntp_states22:20:170
26469999616,71cyclictest24688-21munin-node00:30:310
26469999615,43cyclictest22151-21munin-node22:44:470
26469999614,73cyclictest986-21latency_hist00:59:310
26469999614,73cyclictest28292-21df19:44:450
26469999614,46cyclictest3549-21runrttasks21:35:330
3193429515,16sleep031935-21diskstats23:14:520
26469999515,70cyclictest23978-21munin-node21:10:090
26469999514,72cyclictest3549-21runrttasks20:55:250
26469999514,72cyclictest26283-21timerandwakeup00:35:300
26469999514,72cyclictest18883-21munin-node00:15:050
26469999514,71cyclictest28379-21wget21:24:480
2910129415,16sleep029114-21ntp_states23:05:140
26469999415,70cyclictest30352-21munin-node23:09:520
26469999415,42cyclictest26536-21seq21:19:250
26469999414,43cyclictest29259-21netstat00:45:110
305629315,16sleep03058-21ntp_states21:45:170
26469999315,68cyclictest2863-21fschecks_time23:24:550
26469999315,42cyclictest27146-21cpu00:39:470
26469999314,70cyclictest4313-21munin-node23:29:420
26469999314,70cyclictest20337-21munin-node22:40:330
26469999314,69cyclictest3652-21seq20:08:280
26469999314,42cyclictest14703-21munin-node00:00:200
2542129314,16sleep025424-21diskstats22:54:510
1466329314,16sleep014670-21users20:40:340
26469999214,69cyclictest6367-21open_files21:55:230
1626929214,16sleep016279-21swap22:25:250
26469998914,66cyclictest26842-21munin-node23:00:020
26469998814,37cyclictest102692sleep020:29:240
26469998714,38cyclictest7149-21munin-node20:19:530
2618728614,14sleep00-21swapper19:38:060
144228613,15sleep01443-21memory23:20:080
26469998414,61cyclictest30482-21seq00:49:480
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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