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2023-01-27 - 16:14

x86 Intel Core i7-3770K @3500 MHz, Linux 5.15.49-rt47 (Profile)

Latency plot of system in rack #0, slot #5
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
Compare latency of primary with shadow system
Characteristics of the 100, Linux 4.9.20-rt16, x86_64 highest latencies:
System rack0slot5.osadl.org (updated Fri Jan 27, 2023 00:43:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
14231752406386,10sleep20-21swapper/219:04:378
14232662390372,10sleep90-21swapper/919:05:4815
14201472367348,10sleep150-21swapper/1519:01:537
14232152344326,10sleep40-21swapper/419:05:1110
14232652324304,10sleep80-21swapper/819:05:4714
14229932322304,10sleep60-21swapper/619:02:1612
14232872321302,10sleep50-21swapper/519:06:0011
14232052320300,10sleep120-21swapper/1219:05:034
14233182318300,10sleep110-21swapper/1119:06:223
14231412317299,10sleep100-21swapper/1019:04:132
14231732315297,9sleep00-21swapper/019:04:350
14233082312292,10sleep70-21swapper/719:06:1813
14230492311290,11sleep140-21swapper/1419:02:566
14231942310291,10sleep10-21swapper/119:04:521
14230652309289,10sleep130-21swapper/1319:03:115
14231762299280,10sleep30-21swapper/319:04:389
1423677993410,24cyclictest0-21swapper/1221:36:194
142367799295,11cyclictest0-21swapper/1222:20:154
142367799294,25cyclictest0-21swapper/1223:48:074
142367799294,25cyclictest0-21swapper/1219:46:304
142367799284,24cyclictest0-21swapper/1222:09:164
142367799283,25cyclictest0-21swapper/1223:04:114
142367999255,20cyclictest0-21swapper/1320:25:195
142367999240,14cyclictest0-21swapper/1323:01:465
142367299240,14cyclictest0-21swapper/1120:54:463
142367299240,14cyclictest0-21swapper/1120:54:463
142366899232,21cyclictest0-21swapper/1020:25:192
142367299220,12cyclictest0-21swapper/1122:18:463
1423648992222,0cyclictest1172927-21kworker/5:119:55:2711
1423677992110,11cyclictest0-21swapper/1223:26:094
1423677992110,11cyclictest0-21swapper/1222:53:124
1423677992110,11cyclictest0-21swapper/1222:31:144
1423677992110,11cyclictest0-21swapper/1221:03:234
1423677992110,11cyclictest0-21swapper/1221:03:234
1423677992110,11cyclictest0-21swapper/1220:30:264
1423677992110,11cyclictest0-21swapper/1220:19:274
1423677992110,11cyclictest0-21swapper/1220:08:284
1423677992110,11cyclictest0-21swapper/1219:35:314
1423677992110,11cyclictest0-21swapper/1219:24:324
1423677992110,11cyclictest0-21swapper/1219:13:334
1423677992110,11cyclictest0-21swapper/1200:21:044
1423661992111,10cyclictest0-21swapper/923:49:4715
1423648992111,10cyclictest0-21swapper/522:34:4611
1423644992110,0cyclictest0-21swapper/422:41:5210
1423682992010,10cyclictest0-21swapper/1423:53:476
1423679992010,10cyclictest0-21swapper/1323:24:465
142367799209,11cyclictest0-21swapper/1223:59:064
142367799209,11cyclictest0-21swapper/1223:37:084
142367799209,11cyclictest0-21swapper/1222:42:134
142367799209,11cyclictest0-21swapper/1221:47:184
142367799209,11cyclictest0-21swapper/1221:25:214
142367799209,11cyclictest0-21swapper/1220:52:244
142367799209,11cyclictest0-21swapper/1220:52:244
142367799209,11cyclictest0-21swapper/1219:57:294
142367799209,11cyclictest0-21swapper/1200:32:034
1423672992010,10cyclictest0-21swapper/1100:34:463
1423629992010,10cyclictest0-21swapper/020:46:480
142367999199,10cyclictest0-21swapper/1300:19:475
142367799198,11cyclictest0-21swapper/1221:14:224
142367799198,11cyclictest0-21swapper/1221:14:224
142365899193,7cyclictest0-21swapper/822:25:1414
142365099190,17cyclictest0-21swapper/620:58:1712
142365099190,17cyclictest0-21swapper/620:58:1712
142365099190,17cyclictest0-21swapper/600:35:1112
142364099199,0cyclictest0-21swapper/300:20:479
1423679991813,2cyclictest1443559-21kworker/13:022:02:495
142366199188,0cyclictest0-21swapper/919:13:4815
142365499180,16cyclictest0-21swapper/721:26:3613
1423687991716,1cyclictest1454-21snmpd19:53:577
1423682991716,1cyclictest1454-21snmpd23:49:316
1423682991716,1cyclictest1454-21snmpd19:31:156
142368299170,14cyclictest0-21swapper/1423:11:406
1423679991716,1cyclictest1454-21snmpd22:36:385
142367999170,0cyclictest0-21swapper/1321:12:455
142367999170,0cyclictest0-21swapper/1321:12:455
142367799177,10cyclictest0-21swapper/1221:18:474
1423677991716,1cyclictest1454-21snmpd22:51:024
1423677991716,1cyclictest1454-21snmpd22:02:464
1423672991716,1cyclictest1454-21snmpd23:35:253
1423672991715,1cyclictest14862401kworker/u32:020:34:463
1423668991714,3cyclictest1454-21snmpd19:22:112
1423668991714,3cyclictest1454-21snmpd00:13:382
142366899170,14cyclictest0-21swapper/1023:56:132
142366899170,14cyclictest0-21swapper/1020:12:132
142366899170,0cyclictest0-21swapper/1021:41:132
1423661991716,1cyclictest1454-21snmpd23:39:0715
1423661991711,3cyclictest1534181-21ssh21:19:0315
142366199170,14cyclictest0-21swapper/923:14:1215
142366199170,14cyclictest0-21swapper/920:48:4415
142365899170,14cyclictest0-21swapper/823:51:5214
142365899170,14cyclictest0-21swapper/800:05:3514
142365499170,17cyclictest0-21swapper/722:55:4213
1423650991716,1cyclictest1454-21snmpd22:37:5312
142365099170,17cyclictest0-21swapper/622:16:0512
142365099170,17cyclictest0-21swapper/620:04:1312
142365099170,16cyclictest0-21swapper/620:55:3512
142365099170,16cyclictest0-21swapper/620:55:3512
1423648991716,1cyclictest1454-21snmpd22:17:3811
142364899170,14cyclictest0-21swapper/520:58:2911
142364899170,14cyclictest0-21swapper/520:58:2911
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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