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2024-12-11 - 17:35
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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 100 highest latencies:
System rackdslot1.osadl.org (updated Wed Dec 11, 2024 12:45:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
512121780,7sleep3360099cyclictest07:10:273
160821710,4sleep1241ktimersoftd/107:05:191
877221640,7sleep2359999cyclictest08:30:012
284921370,5sleep2359999cyclictest11:45:142
3599996510,16cyclictest15780-21acpi08:45:132
3599996412,49cyclictest31888-21seq10:27:172
2847191640,3ptp4l7474-21sed09:35:180
2847191630,5ptp4l10648-21apt-get07:25:130
2847191630,4ptp4l4546-21df_inode08:20:140
3599996211,11cyclictest20122-21chrt10:03:042
2847191620,3ptp4l0-21swapper/011:09:450
225522610,3sleep00-21swapper/012:25:200
359999597,15cyclictest12754-21hddtemp_smartct12:05:182
2847191590,4ptp4l0-21swapper/310:40:203
2847191590,3ptp4l0-21swapper/012:15:050
359999588,48cyclictest0-21swapper/209:15:282
359999588,11cyclictest4571-21sed10:40:002
2847191580,4ptp4l0-21swapper/311:17:123
2847191580,3ptp4l0-21swapper/110:00:171
2847191580,3ptp4l0-21swapper/109:10:141
2847191580,2ptp4l0-21swapper/008:35:160
359999579,14cyclictest11687-21taskset08:35:192
3599995710,11cyclictest27025-21runrttasks09:09:062
2847191570,3ptp4l0-21swapper/307:30:153
2847191570,3ptp4l0-21swapper/211:15:172
2847191570,3ptp4l0-21swapper/111:05:181
2847191570,3ptp4l0-21swapper/107:15:151
2847191560,4ptp4l0-21swapper/307:45:153
2847191560,3ptp4l0-21swapper/109:53:411
2847191560,3ptp4l0-21swapper/109:20:541
359999558,16cyclictest20731-21/usr/sbin/munin10:05:142
2847191550,4ptp4l0-21swapper/011:10:150
2847191550,3ptp4l0-21swapper/311:26:573
2847191550,3ptp4l0-21swapper/311:26:573
359999547,12cyclictest7863-21sed10:45:182
359999547,10cyclictest16304-21wc11:05:122
359999539,15cyclictest18266-21ntp_states12:15:242
359999536,15cyclictest22716-21/usr/sbin/munin09:00:192
359999536,10cyclictest19265-21phc2sys08:50:252
3599995311,39cyclictest19208-21sed11:10:182
2847191530,4ptp4l0-21swapper/310:54:383
359999529,10cyclictest21534-21sed07:45:272
3599995215,34cyclictest10386-21ntp_states10:50:172
3599995214,10cyclictest27248-21taskset11:26:362
3599995214,10cyclictest27248-21taskset11:26:362
3599995110,16cyclictest5553-21mailstats08:20:252
2847191510,4ptp4l0-21swapper/307:43:033
2849491500,13getstats29408-21cron09:15:003
2847191500,3ptp4l12319-21apt-get12:05:130
2847191500,3ptp4l0-21swapper/308:09:113
2847191500,3ptp4l0-21swapper/008:25:190
2847191500,3ptp4l0-21swapper/008:15:110
359999498,14cyclictest11264-21/usr/sbin/munin09:45:162
359999497,6cyclictest2847191ptp4l10:40:322
2847191490,3ptp4l0-21swapper/308:45:243
2847191490,3ptp4l0-21swapper/007:35:070
2847191490,12ptp4l22415-21apt-get07:50:132
359999487,6cyclictest0-21swapper/211:50:182
359999486,15cyclictest0-21swapper/207:15:002
359899484,6cyclictest0-21swapper/110:35:101
2847191480,3ptp4l0-21swapper/307:38:293
2847191480,3ptp4l0-21swapper/008:50:290
2847191470,4ptp4l0-21swapper/011:40:550
2847191470,4ptp4l0-21swapper/010:53:100
2847191470,4ptp4l0-21swapper/007:22:230
359999462,10cyclictest0-21swapper/212:03:462
3599994615,28cyclictest7454-21/usr/sbin/munin11:55:322
359899463,6cyclictest0-21swapper/110:40:171
359899460,8cyclictest241ktimersoftd/112:15:281
359899460,5cyclictest25-21ksoftirqd/110:45:191
2847191460,4ptp4l0-21swapper/310:55:583
2847191460,10ptp4l0-21swapper/212:14:182
2847191460,10ptp4l0-21swapper/210:21:032
359999455,15cyclictest0-21swapper/210:55:262
359899454,4cyclictest25-21ksoftirqd/108:35:251
359899452,6cyclictest0-21swapper/111:00:251
359899452,6cyclictest0-21swapper/110:25:211
359899452,11cyclictest0-21swapper/112:30:261
359899451,6cyclictest25-21ksoftirqd/112:25:261
359899451,6cyclictest25-21ksoftirqd/111:40:001
359899451,6cyclictest25-21ksoftirqd/108:20:261
2847191450,9ptp4l0-21swapper/011:17:250
2847191450,7ptp4l1256-21df07:05:160
2847191450,4ptp4l23156-21apt-get11:20:110
2847191450,4ptp4l0-21swapper/308:41:423
2847191450,4ptp4l0-21swapper/210:20:012
2847191450,3ptp4l0-21swapper/110:15:251
2847191450,3ptp4l0-21swapper/109:39:031
359999446,8cyclictest27673-21fschecks_time08:00:172
359899443,6cyclictest25-21ksoftirqd/111:30:021
359899443,10cyclictest0-21swapper/108:50:141
359899442,5cyclictest25-21ksoftirqd/111:25:011
359899441,6cyclictest0-21swapper/110:10:251
2849491440,11getstats0-21swapper/311:47:573
2847191440,9ptp4l0-21swapper/211:39:512
2847191440,9ptp4l0-21swapper/209:24:102
2847191440,9ptp4l0-21swapper/209:10:532
2847191440,5ptp4l6311-21open_files11:50:271
2847191440,4ptp4l0-21swapper/109:30:061
2847191440,4ptp4l0-21swapper/008:12:270
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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