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2024-07-27 - 03:50
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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 rackdslot1.osadl.org (updated Fri Jul 26, 2024 12:46:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1659421800,9sleep015876-21/usr/sbin/munin07:05:220
1176911690,7ptp4l0-21swapper/107:06:421
1176911110,16ptp4l0-21swapper/207:05:012
1176911090,16ptp4l0-21swapper/307:05:033
117691660,2ptp4l0-21swapper/208:45:042
117691660,2ptp4l0-21swapper/208:45:042
1823299651,31cyclictest8146-21/usr/sbin/munin07:55:240
117691650,28ptp4l6127-21cut11:20:132
18235996451,7cyclictest41-21ksoftirqd/311:05:113
1823299646,27cyclictest2532-21cpuspeed07:45:120
1823299640,29cyclictest29285-21/usr/sbin/munin09:50:260
1823299631,27cyclictest32734-21/usr/sbin/munin08:50:270
1823299631,27cyclictest1142-21runrttasks08:10:250
1823299631,25cyclictest13960-21/usr/sbin/munin11:35:220
1823299631,24cyclictest28809-21latency_hist12:10:000
1823299631,23cyclictest0-21swapper/009:25:230
117691630,2ptp4l0-21swapper/208:30:032
18233996226,9cyclictest25-21ksoftirqd/110:40:151
18233996226,8cyclictest25-21ksoftirqd/107:50:161
1823299620,25cyclictest25203-21awk09:40:360
117691620,2ptp4l0-21swapper/208:28:012
1823299611,30cyclictest26885-21/usr/sbin/munin09:45:240
1823299611,26cyclictest21448-21irqstats07:15:220
1823299610,30cyclictest19730-21/usr/sbin/munin08:20:260
1823299610,25cyclictest5944-21latency09:00:250
1823299610,24cyclictest27330-21ntpq10:55:250
117691610,2ptp4l0-21swapper/209:32:422
117691610,2ptp4l0-21swapper/012:26:380
18233996026,9cyclictest25-21ksoftirqd/110:00:311
18233996025,9cyclictest25-21ksoftirqd/111:45:171
18233996025,9cyclictest25-21ksoftirqd/111:10:281
18233996024,10cyclictest25-21ksoftirqd/111:15:291
1823299601,28cyclictest22598-21sensors_temp09:35:310
1823299601,27cyclictest6656-21if_enp4s012:30:180
1823299600,26cyclictest18783-21latency_hist10:40:010
1823299600,26cyclictest1142-21runrttasks08:30:430
1823299600,21cyclictest117691ptp4l11:55:090
18233995925,10cyclictest25-21ksoftirqd/112:05:211
18233995924,9cyclictest25-21ksoftirqd/112:14:591
18233995923,9cyclictest25-21ksoftirqd/107:15:141
18233995922,10cyclictest25-21ksoftirqd/108:50:221
1823299591,32cyclictest15796-21/usr/sbin/munin09:20:330
1823299591,30cyclictest3464-21/usr/sbin/munin11:15:120
1823299590,30cyclictest12892-21ps08:05:270
1823299590,29cyclictest11055-21awk08:00:330
1823299590,29cyclictest10494-21/usr/sbin/munin10:20:180
117691590,5ptp4l12372-21runrttasks11:32:202
117691590,2ptp4l0-21swapper/208:10:252
18235995844,7cyclictest41-21ksoftirqd/309:35:103
18235995831,15cyclictest1142-21runrttasks10:35:133
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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