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2022-08-19 - 14:17

x86 Intel Xeon E5620 @2400 MHz, Linux 4.19.127-rt55 (Profile)

Latency plot of system in rack #c, 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 -Up99 -i200 -h400 --smi -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 rackcslot0.osadl.org (updated Fri Aug 19, 2022 00:43:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
24752128103,21sleep60-21swapper/619:15:3312
2512621260,0sleep70-21swapper/723:53:5913
2405621250,0sleep70-21swapper/722:13:0813
24672123103,16sleep150-21swapper/1519:15:267
23212123104,14sleep120-21swapper/1219:13:474
2570321140,7sleep9315099cyclictest22:17:1115
2021721140,5sleep1313899cyclictest22:51:171
2834221130,1sleep30-21swapper/323:31:119
2834221130,1sleep30-21swapper/323:31:119
2700211290,13sleep30-21swapper/319:17:559
2442211190,13sleep90-21swapper/919:15:0415
2536210890,13sleep100-21swapper/1019:16:262
1822221080,2sleep1018220-21sshd21:48:502
1318021080,1sleep90-21swapper/900:35:2915
476721070,1sleep20-21swapper/223:04:418
467221050,1sleep60-21swapper/621:51:2712
692321030,1sleep00-21swapper/000:31:030
1835421010,0sleep130-21swapper/1322:38:555
72672990,2sleep07274-21sendmail_mailqu22:53:250
146662990,5sleep14315799cyclictest22:03:536
48712980,1sleep130-21swapper/1322:33:505
44429874,18sleep110-21swapper/1119:13:143
265929880,13sleep10-21swapper/119:17:211
236702940,1sleep90-21swapper/921:45:5315
37932930,0sleep00-21swapper/023:00:380
179272930,0sleep20-21swapper/200:04:528
206042920,0sleep90-21swapper/923:30:1215
206042920,0sleep90-21swapper/923:30:1215
285642910,1sleep150-21swapper/1500:13:397
254529172,4sleep00-21swapper/019:16:320
62982900,2sleep96295-21systemd-cgroups22:57:1815
259742880,0sleep20-21swapper/222:43:338
260502870,0sleep90-21swapper/923:22:5915
260502870,0sleep90-21swapper/923:22:5915
244128674,8sleep80-21swapper/819:15:0314
230928672,10sleep20-21swapper/219:13:378
19832860,0sleep50-21swapper/521:55:1111
251228572,7sleep50-21swapper/519:16:0411
237128575,6sleep140-21swapper/1419:14:216
327672830,0sleep110-21swapper/1122:44:303
3158528375,4sleep130-21swapper/1319:13:005
264828375,4sleep70-21swapper/719:17:1113
245628272,6sleep40-21swapper/419:15:1510
89482810,0sleep120-21swapper/1223:59:414
58732710,0sleep30-21swapper/322:18:259
223432690,3sleep1022349-2110-uname00:01:312
21152580,2sleep00-21swapper/021:51:050
118712530,2sleep1011851-21sshd00:11:572
151432480,2sleep915145-21uname22:35:0615
274522450,1sleep30-21swapper/323:50:269
314199373,31cyclictest1082-21gdbus23:26:388
314199373,31cyclictest1082-21gdbus23:26:388
314199358,25cyclictest6472-21gdbus22:37:078
314199355,28cyclictest0-21swapper/200:43:008
3141993511,22cyclictest0-21swapper/222:24:258
314199349,22cyclictest2156-21sshd22:08:518
314199343,29cyclictest0-21swapper/221:59:228
314199342,29cyclictest1-21systemd00:18:198
291492340,1sleep90-21swapper/923:38:3015
3141993312,18cyclictest6486-21sshd23:20:248
3141993312,18cyclictest6486-21sshd23:20:248
226162330,28sleep00-21swapper/022:20:310
175812330,5sleep10315299cyclictest23:56:582
60482320,6sleep2314199cyclictest21:21:258
60482320,6sleep2314199cyclictest21:21:258
314199329,20cyclictest30877-21sshd23:54:418
314199326,23cyclictest17680-21systemd00:08:348
314199325,25cyclictest0-21swapper/222:41:308
314199324,21cyclictest0-21swapper/222:15:268
314199323,27cyclictest8854-21sshd23:36:228
3141993214,14cyclictest0-21swapper/221:29:338
314199321,28cyclictest0-21swapper/223:17:448
314199321,28cyclictest0-21swapper/223:17:448
23312320,1sleep90-21swapper/921:24:3015
199012321,27sleep420033-21sshd22:23:4810
120352320,4sleep990-21ksoftirqd/900:23:5815
68782310,29sleep80-21swapper/819:22:4914
40912310,2sleep20-21swapper/223:28:138
40912310,2sleep20-21swapper/223:28:138
315499311,27cyclictest31509-21systemd-cgroups00:18:193
315499310,28cyclictest24675-21sshd23:07:173
314199319,19cyclictest14021-21sshd22:54:148
314199316,22cyclictest1-21systemd23:39:548
314199316,22cyclictest0-21swapper/200:32:598
3141993116,11cyclictest969-21dbus-daemon23:43:398
3141993115,13cyclictest969-21dbus-daemon21:38:108
3141993111,17cyclictest1-21systemd23:50:258
3141993110,18cyclictest32078-21sshd23:00:098
314199310,29cyclictest0-21swapper/222:32:038
123312310,28sleep80-21swapper/822:11:3414
115482310,2sleep70-21swapper/700:27:5713
315499302,25cyclictest6472-21gdbus22:21:553
315499301,27cyclictest0-21swapper/1100:06:073
315499301,26cyclictest9883-21systemd22:30:383
315499300,27cyclictest6472-21gdbus23:48:003
314199307,17cyclictest14268-21systemd21:33:168
314199306,18cyclictest17909-21systemd00:16:538
314199304,24cyclictest0-21swapper/200:28:118
314199303,24cyclictest0-21swapper/200:42:128
3141993014,13cyclictest29827-21sshd00:26:098
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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