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2024-10-10 - 18:36
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
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 rackcslot0.osadl.org (updated Thu Oct 10, 2024 00:43:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
982121450,7sleep2727699cyclictest00:29:028
181221370,0sleep80-21swapper/823:54:5414
181221370,0sleep80-21swapper/823:54:5414
2114021360,3sleep2727699cyclictest22:59:108
1768721240,2sleep11998-21dbus-daemon23:09:293
65622123105,13sleep30-21swapper/319:11:219
2971521230,1sleep70-21swapper/700:05:0313
2971521230,1sleep70-21swapper/700:05:0313
3393211693,16sleep70-21swapper/719:09:4913
6536211391,18sleep130-21swapper/1319:10:595
335721120,1sleep93007-1kworker/9:1H00:39:1915
3377210982,22sleep140-21swapper/1419:09:406
6669210791,11sleep00-21swapper/019:12:540
2232721060,0sleep110-21swapper/1122:26:573
1337821050,6sleep14729299cyclictest23:30:246
6480210379,19sleep120-21swapper/1219:10:104
1981321010,2sleep8811ktimersoftd/823:02:4514
1662621010,2sleep80-21swapper/821:25:2314
1662621010,2sleep80-21swapper/821:25:2314
867021000,4sleep11728899cyclictest23:48:163
867021000,4sleep11728899cyclictest23:48:163
753721000,5sleep4727899cyclictest21:42:2610
2683121000,1sleep60-21swapper/623:43:0612
1112621000,2sleep4509-21systemd-journal22:32:4310
243762990,8sleep7728299cyclictest23:13:4213
88862980,1sleep00-21swapper/021:46:070
119742980,0sleep20-21swapper/221:28:468
119742980,0sleep20-21swapper/221:28:468
116392950,6sleep4727899cyclictest23:52:1010
116392950,6sleep4727899cyclictest23:52:1010
3132940,1sleep00-21swapper/021:20:100
3132940,1sleep00-21swapper/021:20:100
302122940,5sleep7728299cyclictest00:27:3113
244272940,1sleep140-21swapper/1422:16:186
180232940,1sleep120-21swapper/1223:38:394
16432940,5sleep2727699cyclictest22:38:508
278422920,0sleep110-21swapper/1122:09:503
52892900,0sleep60-21swapper/600:39:3212
682328972,4sleep90-21swapper/919:14:0815
650628772,11sleep10-21swapper/119:10:311
193712870,1sleep8998-21dbus-daemon00:26:1214
684328674,8sleep100-21swapper/1019:14:252
663028672,9sleep150-21swapper/1519:12:217
302772860,2sleep830258-21sshd22:45:3714
189892860,2sleep218990-21sshd23:13:048
101882860,0sleep80-21swapper/822:14:5214
236292850,2sleep00-21swapper/022:44:570
157512850,0sleep120-21swapper/1223:23:564
113772850,0sleep20-21swapper/223:08:488
110232850,1sleep70-21swapper/723:41:1513
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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