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2022-05-28 - 12:52

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 Sat May 28, 2022 00:43:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2778821400,0sleep30-21swapper/321:42:299
2778821400,0sleep30-21swapper/321:42:299
17202140117,18sleep130-21swapper/1319:12:385
17202140117,18sleep130-21swapper/1319:12:385
17672121103,13sleep50-21swapper/519:13:1911
17672121103,13sleep50-21swapper/519:13:1911
18012117104,8sleep30-21swapper/319:13:339
18012117104,8sleep30-21swapper/319:13:339
1328521140,1sleep70-21swapper/700:20:0613
1745211294,13sleep00-21swapper/019:12:570
1745211294,13sleep00-21swapper/019:12:570
2031211090,13sleep100-21swapper/1019:16:042
2031211090,13sleep100-21swapper/1019:16:042
1739210990,14sleep110-21swapper/1119:12:523
1739210990,14sleep110-21swapper/1119:12:523
1020210992,12sleep60-21swapper/619:12:1512
1020210992,12sleep60-21swapper/619:12:1512
2578521080,0sleep140-21swapper/1423:18:426
1874210792,10sleep10-21swapper/119:14:351
1874210792,10sleep10-21swapper/119:14:351
2721421050,2sleep13262899cyclictest22:35:055
1870210491,9sleep140-21swapper/1419:14:326
1870210491,9sleep140-21swapper/1419:14:326
1348321040,1sleep50-21swapper/522:08:4411
3226421020,6sleep0260899cyclictest00:32:170
2902021020,1sleep150-21swapper/1500:32:007
1754321010,0sleep140-21swapper/1422:23:516
58012990,0sleep80-21swapper/822:36:5214
302042990,0sleep90-21swapper/921:07:0015
180032990,1sleep50-21swapper/519:32:1711
170402990,1sleep130-21swapper/1300:20:445
305792980,5sleep8261999cyclictest23:24:1314
82062960,1sleep20-21swapper/200:14:248
37972960,0sleep70-21swapper/721:34:3113
37972960,0sleep70-21swapper/721:34:3113
30552950,1sleep20-21swapper/222:26:368
45862940,1sleep120-21swapper/1219:57:004
301942940,0sleep110-21swapper/1122:16:353
303752930,1sleep1241ktimersoftd/123:28:551
324882920,1sleep10-21swapper/123:04:501
193529265,22sleep70-21swapper/719:15:2913
193529265,22sleep70-21swapper/719:15:2913
161122920,2sleep1016119-21sh23:36:492
59812910,1sleep50-21swapper/521:39:3411
59812910,1sleep50-21swapper/521:39:3411
308212900,0sleep30-21swapper/322:11:389
204028972,4sleep20-21swapper/219:16:128
204028972,4sleep20-21swapper/219:16:128
186828776,7sleep120-21swapper/1219:14:304
186828776,7sleep120-21swapper/1219:14:304
184528775,8sleep80-21swapper/819:14:1014
184528775,8sleep80-21swapper/819:14:1014
195128672,9sleep40-21swapper/419:15:4210
195128672,9sleep40-21swapper/419:15:4210
150852860,0sleep120-21swapper/1200:29:494
117192850,0sleep110-21swapper/1123:06:363
192628375,4sleep150-21swapper/1519:15:217
192628375,4sleep150-21swapper/1519:15:217
177328375,4sleep90-21swapper/919:13:2315
177328375,4sleep90-21swapper/919:13:2315
153252830,0sleep60-21swapper/623:46:0712
155542820,0sleep140-21swapper/1400:10:036
134932820,1sleep30-21swapper/322:32:469
224642610,0sleep140-21swapper/1421:51:296
224642610,0sleep140-21swapper/1421:51:296
145852590,1sleep120-21swapper/1200:05:124
145852590,1sleep120-21swapper/1200:05:124
262299490,3cyclictest512-21systemd-journal00:19:512
280592480,1sleep60-21swapper/623:04:0712
262299480,1cyclictest0-21swapper/1000:02:592
262299480,1cyclictest0-21swapper/1000:02:592
262299471,37cyclictest25849110-uname21:47:022
262299471,37cyclictest25849110-uname21:47:022
262299470,4cyclictest17954-2110-uname23:22:192
262299470,2cyclictest0-21swapper/1022:00:272
262299470,1cyclictest0-21swapper/1022:41:352
262299470,1cyclictest0-21swapper/1000:01:152
262299470,1cyclictest0-21swapper/1000:01:152
262299465,30cyclictest969-21dbus-daemon22:44:302
262299461,42cyclictest30450-21sshd21:33:312
262299461,42cyclictest30450-21sshd21:33:312
262299460,3cyclictest1-21systemd23:05:352
262299460,2cyclictest467-21jbd2/md125p1-800:12:392
262299460,2cyclictest0-21swapper/1022:47:372
262299460,2cyclictest0-21swapper/1022:36:452
262299460,2cyclictest0-21swapper/1022:24:512
262299460,2cyclictest0-21swapper/1000:37:552
262299460,1cyclictest0-21swapper/1023:30:392
262299460,1cyclictest0-21swapper/1022:54:032
262299460,1cyclictest0-21swapper/1021:20:272
262299460,1cyclictest0-21swapper/1000:35:192
262299450,3cyclictest2156-21sshd00:29:582
262299450,2cyclictest0-21swapper/1000:44:432
262299450,2cyclictest0-21swapper/1000:08:592
262299450,1cyclictest0-21swapper/1023:53:352
262299450,1cyclictest0-21swapper/1023:53:352
262299450,1cyclictest0-21swapper/1023:01:312
262299450,1cyclictest0-21swapper/1022:07:592
262299450,1cyclictest0-21swapper/1021:42:392
262299450,1cyclictest0-21swapper/1021:42:392
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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