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2022-08-19 - 13:56

x86 Intel Xeon E3-1220 @3100 MHz, 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 100, highest latencies:
System rack2slot0.osadl.org (updated Fri Aug 19, 2022 12:43:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
5332510,0sleep10-21swapper/111:55:391
321492510,0sleep00-21swapper/010:43:280
204202510,0sleep21-21systemd11:28:402
301612500,0sleep30-21swapper/309:55:063
135892500,0sleep20-21swapper/210:55:002
135892500,0sleep20-21swapper/210:54:592
30632490,1sleep341-21ksoftirqd/312:36:343
212692480,0sleep30-21swapper/312:33:093
317532470,0sleep20-21swapper/212:27:402
2468423525,6sleep10-21swapper/107:07:511
2307123220,7sleep20-21swapper/207:05:062
2471522513,7sleep00-21swapper/007:08:140
2470622513,7sleep30-21swapper/307:08:083
47972230,0sleep20-21swapper/209:32:422
316532170,0sleep10-21swapper/110:19:271
203772170,0sleep00-21swapper/011:04:380
252182160,1sleep1231rcuc/110:09:531
2497999160,1cyclictest30405-21rt-features12:35:171
83592150,0sleep30-21swapper/310:05:233
2497999154,5cyclictest633-21polkitd09:39:591
207642150,1sleep3401ktimersoftd/311:20:273
9092140,0sleep20-21swapper/211:23:512
37702140,0sleep20-21swapper/211:48:382
259202140,0sleep30-21swapper/311:38:023
2497999140,1cyclictest0-21swapper/110:32:171
24974991413,0cyclictest518-40kipmi007:28:330
116182140,0sleep00-21swapper/010:38:240
300482130,0sleep20-21swapper/210:35:012
261862130,0sleep10-21swapper/110:10:051
2498199138,4cyclictest0-21swapper/309:28:013
2498199130,6cyclictest1-21systemd11:53:503
2498199130,3cyclictest0-21swapper/309:17:313
2498199130,12cyclictest0-21swapper/312:14:113
2498199130,12cyclictest0-21swapper/311:41:013
2497999133,6cyclictest649-21NetworkManager11:03:311
2497999130,0cyclictest14044-21lspci11:50:581
2497499130,12cyclictest4184-21sshd11:40:290
122762130,0sleep2311rcuc/209:42:312
2498199125,6cyclictest598-21avahi-daemon11:10:393
2498199120,5cyclictest614-21dbus-daemon12:00:123
2498199120,2cyclictest0-21swapper/309:52:513
2498199120,2cyclictest0-21swapper/309:24:303
2498199120,11cyclictest0-21swapper/311:09:013
24980991210,1cyclictest22653-21sshd10:17:022
24980991210,1cyclictest21340-21cp09:36:412
2498099120,11cyclictest614-21dbus-daemon09:46:322
2497999129,2cyclictest0-21swapper/111:07:081
2497999120,2cyclictest614-21dbus-daemon11:31:221
2497999120,2cyclictest614-21dbus-daemon09:17:191
2497999120,1cyclictest614-21dbus-daemon09:20:431
2497999120,1cyclictest23509-21cat10:25:181
2497999120,1cyclictest1-21systemd11:39:581
2497999120,1cyclictest1-21systemd11:27:571
2497999120,11cyclictest28736-21sshd10:58:381
2497999120,0cyclictest0-21swapper/112:25:371
2497499125,1cyclictest9-21ksoftirqd/011:36:350
24974991211,0cyclictest0-21swapper/010:10:390
2497499120,1cyclictest24219-21sshd09:37:290
2497499120,11cyclictest20449-21sshd12:08:490
2498199119,1cyclictest23834-21ntp_states09:45:203
2498199119,1cyclictest19273-21sshd09:12:103
2498199119,1cyclictest0-21swapper/310:14:103
2498199115,5cyclictest598-21avahi-daemon12:16:213
2498199115,5cyclictest598-21avahi-daemon11:47:423
2498199115,5cyclictest598-21avahi-daemon11:17:413
2498199115,5cyclictest598-21avahi-daemon10:59:343
2498199114,6cyclictest633-21polkitd10:29:393
2498199111,5cyclictest614-21dbus-daemon10:46:213
2498199110,8cyclictest614-21dbus-daemon11:03:313
2498199110,8cyclictest614-21dbus-daemon10:37:113
2498199110,8cyclictest614-21dbus-daemon10:18:543
2498199110,8cyclictest25101-21cp10:33:463
2498199110,8cyclictest1-21systemd12:26:483
2498199110,8cyclictest1-21systemd10:04:413
2498199110,5cyclictest614-21dbus-daemon11:59:083
2498199110,10cyclictest0-21swapper/309:33:213
24980991110,0cyclictest0-21swapper/212:12:112
2498099110,10cyclictest0-21swapper/212:38:112
2498099110,10cyclictest0-21swapper/211:30:222
2498099110,0cyclictest0-21swapper/210:29:112
2497999119,1cyclictest16748-21id09:59:481
2497999115,5cyclictest598-21avahi-daemon12:10:211
2497999115,5cyclictest598-21avahi-daemon09:41:111
2497999112,5cyclictest31835-21sshd11:15:301
2497999110,2cyclictest614-21dbus-daemon10:44:281
2497999110,1cyclictest8789-21grep12:30:091
2497999110,1cyclictest633-21polkitd10:46:051
2497999110,1cyclictest574-17auditd12:20:371
2497999110,1cyclictest5015-21sshd11:24:571
2497999110,1cyclictest4194-21sshd10:36:251
2497999110,1cyclictest17719-21systemd-cgroups09:51:481
2497999110,1cyclictest1-21systemd12:16:001
2497999110,1cyclictest1-21systemd12:01:381
2497999110,1cyclictest1-21systemd11:11:321
2497999110,1cyclictest1-21systemd10:20:441
2497999110,1cyclictest1-21systemd10:01:281
2497999110,1cyclictest1-21systemd09:25:461
2497999110,1cyclictest10906-21grepconf.sh09:10:121
2497999110,1cyclictest0-21swapper/111:45:041
2497999110,1cyclictest0-21swapper/110:50:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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