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2020-12-03 - 04:41

Intel(R) Xeon(R) CPU E31220 @ 3.10GHz, Linux 4.19.1-rt3 (Profile)

Latency plot of system in rack #2, slot #0
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 -Sp99 -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 the 50 highest latencies:
System rack2slot0.osadl.org (updated Wed Dec 02, 2020 12:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
929521130,2sleep32288799cyclictest10:55:173
43272720,0sleep00-21swapper/012:08:180
163542700,2sleep12288599cyclictest11:22:501
302592620,0sleep00-21swapper/010:58:540
117782560,0sleep20-21swapper/209:52:432
24732550,0sleep00-21swapper/011:41:360
20792540,0sleep00-21swapper/009:51:060
69132520,0sleep20-21swapper/211:37:052
320542510,1sleep2614-21dbus-daemon10:32:532
235432510,0sleep00-21swapper/009:33:380
48352500,0sleep00-21swapper/012:34:510
170312490,0sleep30-21swapper/312:15:313
170312490,0sleep30-21swapper/312:15:303
47412480,0sleep20-21swapper/209:00:212
293172480,0sleep10-21swapper/110:37:401
108062480,0sleep30-21swapper/312:14:433
64632470,0sleep10-21swapper/109:25:271
113842470,0sleep30-21swapper/312:04:183
321172450,0sleep20-21swapper/212:23:232
2249524129,7sleep10-21swapper/107:06:221
226582308,7sleep20-21swapper/207:08:232
2262222412,7sleep30-21swapper/307:07:563
2244222311,7sleep00-21swapper/007:05:400
318632190,0sleep20-21swapper/212:39:132
6692180,1sleep0111rcuc/010:01:230
322272170,0sleep00-21swapper/010:27:380
74622150,0sleep20-21swapper/209:36:102
170652150,0sleep00-21swapper/011:59:570
325762140,0sleep20-21swapper/210:11:492
254212140,1sleep00-21swapper/011:29:420
234302140,0sleep00-21swapper/009:49:280
41612130,0sleep00-21swapper/012:18:530
41612130,0sleep00-21swapper/012:18:520
9772120,0sleep30-21swapper/312:07:453
22887991210,1cyclictest0-21swapper/311:18:543
2288799120,1cyclictest17666-21sshd11:07:153
2288799120,1cyclictest1-21systemd11:57:453
2288799120,11cyclictest970-21snmpd11:42:443
2288799120,11cyclictest0-21swapper/309:17:033
22886991210,1cyclictest0-21swapper/212:07:502
22886991210,1cyclictest0-21swapper/211:18:502
2288699120,1cyclictest18513-21sshd12:26:202
22885991210,1cyclictest619-21systemd-logind12:11:431
22885991210,1cyclictest1-21systemd12:27:421
2288599120,1cyclictest25705-21sshd12:32:531
2288599120,11cyclictest21384-21grepconf.sh09:38:331
2288199120,11cyclictest17352-21bash12:10:170
204972120,0sleep00-21swapper/010:30:540
22887991110,0cyclictest0-21swapper/310:07:453
22887991110,0cyclictest0-21swapper/310:07:443
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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