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2021-06-20 - 03:53

ARMv7 Processor rev 5 (v7l), Linux 4.16.15-rt7 (Profile)

Latency plot of system in rack #5, slot #7
Data to construct the above plot have been generated using the RT test utility cyclictest.
Command line: cyclictest -l50000000 -m -n -a0 -t1 -p99 -i400 -h400 -q
Total number of samples: 50 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack5slot7.osadl.org (updated Sun Jun 20, 2021 00:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
14318224102186,169sleep00-21swapper18:55:540
15437211610,4sleep015298-1kworker/u3:119:00:260
154549917713,138cyclictest9634-21/usr/sbin/munin00:26:100
154549917122,44cyclictest31901-21/usr/sbin/munin23:57:320
154549917034,43cyclictest0-21swapper21:16:330
154549917012,132cyclictest10706-21ls22:52:100
154549916937,26cyclictest8958-21ls21:11:450
154549916934,38cyclictest12205-21sh22:56:560
154549916915,62cyclictest30226-21apt-get23:50:430
154549916913,130cyclictest24198-21zcat23:32:030
154549916835,38cyclictest14473-21sh23:03:340
154549916820,26cyclictest29406-21ntp_states22:11:570
154549916815,28cyclictest7249-21ls21:06:450
154549916630,31cyclictest0-21swapper23:22:360
154549916610,67cyclictest7575-21ssh22:42:550
154549916536,20cyclictest29088-21ls23:46:460
154549916518,23cyclictest2148-21users00:02:270
154549916416,23cyclictest3540-21irqstats22:31:270
154549916414,43cyclictest31348-21ls22:17:150
154549916318,41cyclictest3998-21wc20:55:230
154549916317,44cyclictest8474-21memory00:21:370
154549916314,26cyclictest9106-21ls22:47:220
154549916239,22cyclictest27689-21ls23:42:120
154549916235,32cyclictest13464-21apt-get21:25:430
154549916220,41cyclictest15478-21memory23:06:410
154549916217,24cyclictest22620-21ntp_offset21:51:570
154549916215,42cyclictest6259-21apt-get00:15:400
154549916213,27cyclictest3778-21ls00:07:190
154549916212,42cyclictest5822-21ls21:02:150
154549916117,26cyclictest17312-21irqstats21:36:260
15454991609,25cyclictest1469-21cut22:25:470
154549916033,19cyclictest27921-21ls22:07:100
154549916021,24cyclictest18890-21/usr/sbin/munin23:16:360
154549916019,33cyclictest17161-21ssh23:11:320
154549916014,26cyclictest26299-21/usr/sbin/munin22:02:280
154549916013,42cyclictest22616-21ls23:27:130
154549915938,103cyclictest17034-21aten_r5power_cu19:10:380
154549915920,25cyclictest5333-21memory22:36:440
154549915915,24cyclictest23921-21df21:56:000
154549915912,43cyclictest29507-21ls20:16:160
154549915911,42cyclictest26318-21cut20:00:400
154549915820,26cyclictest18816-21df21:40:560
154549915818,37cyclictest15705-21memory21:31:370
154549915817,28cyclictest20846-21ls21:46:460
154549915812,38cyclictest26061-21ssh23:37:170
154549915727,33cyclictest0-21swapper20:15:230
154549915726,31cyclictest0-21swapper19:46:170
154549915717,41cyclictest32504-21fw_conntrack22:21:120
154549915714,42cyclictest12253-21latency21:21:310
154549915713,35cyclictest4561-21apt-get00:10:400
154549915640,23cyclictest19904-21cpu19:25:430
154549915615,44cyclictest25621-21df_inode19:55:560
154549915612,26cyclictest30433-21ntp_kernel_err20:21:220
154549915611,25cyclictest21489-21grep19:31:420
154549915517,35cyclictest22556-21apt-get19:40:400
154549915514,42cyclictest21671-21grep19:35:390
154549915514,40cyclictest4847-21/usr/sbin/munin21:00:230
154549915511,61cyclictest24235-21snmpd19:16:360
154549915416,39cyclictest32499-21cat20:31:290
154549915415,37cyclictest1206-21apt20:40:330
154549915413,39cyclictest27391-21df20:05:450
154549915332,28cyclictest0-21swapper19:50:520
154549915322,27cyclictest580-21fw_conntrack20:35:550
154549915317,21cyclictest19645-21users19:21:460
154549915316,36cyclictest31725-21munin-run20:30:190
154549915134,28cyclictest0-21swapper20:46:300
154549915114,24cyclictest16781-21df_inode19:05:480
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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