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2022-11-29 - 18:19

x86 Intel Atom E3845 @1910 MHz, Linux 4.19.37-rt19 (Profile)

Latency plot of system in rack #d, slot #4
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 rackdslot4.osadl.org (updated Tue Nov 29, 2022 12:46:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1636721840,6sleep2530899cyclictest08:40:262
1636721840,6sleep2530899cyclictest08:40:252
521921830,4sleep10-21swapper/107:10:011
521921830,4sleep10-21swapper/107:10:001
2772621550,7sleep0530699cyclictest11:20:290
1299911380,68ptp4l41-21ksoftirqd/307:05:033
1299911380,68ptp4l41-21ksoftirqd/307:05:033
5308997867,6cyclictest33-21ksoftirqd/211:55:132
5308997767,6cyclictest33-21ksoftirqd/211:10:152
129991760,1ptp4l401ktimersoftd/307:50:283
5308997464,6cyclictest33-21ksoftirqd/208:25:132
5308997363,6cyclictest33-21ksoftirqd/211:15:142
5307997368,3cyclictest231rcuc/112:05:371
5308997261,7cyclictest33-21ksoftirqd/209:30:142
174172710,8sleep3530999cyclictest08:45:013
174172710,8sleep3530999cyclictest08:45:003
56498700,8rtkit-daemon563-21rtkit-daemon07:05:592
56498700,8rtkit-daemon563-21rtkit-daemon07:05:582
5308997060,7cyclictest33-21ksoftirqd/208:45:112
5308997059,7cyclictest33-21ksoftirqd/211:05:162
5308997059,7cyclictest33-21ksoftirqd/209:15:122
5308996857,7cyclictest33-21ksoftirqd/210:25:132
530799677,9cyclictest25-21ksoftirqd/107:25:181
530799675,8cyclictest25-21ksoftirqd/111:10:281
530799670,63cyclictest241ktimersoftd/107:25:001
5308996656,6cyclictest33-21ksoftirqd/210:30:122
5308996655,6cyclictest33-21ksoftirqd/207:30:132
5308996654,6cyclictest33-21ksoftirqd/207:25:132
5307996660,4cyclictest25-21ksoftirqd/108:00:041
5307996630,11cyclictest25-21ksoftirqd/108:20:111
5308996551,8cyclictest33-21ksoftirqd/208:50:122
530799657,9cyclictest25-21ksoftirqd/112:20:331
5307996560,3cyclictest231rcuc/108:10:001
530799655,7cyclictest209-21systemd-journal09:30:001
5307996529,9cyclictest25-21ksoftirqd/110:40:391
530799647,9cyclictest25-21ksoftirqd/111:45:011
530799647,9cyclictest25-21ksoftirqd/108:25:141
530799647,7cyclictest25-21ksoftirqd/111:00:001
530799646,8cyclictest25-21ksoftirqd/108:50:211
530799640,9cyclictest241ktimersoftd/110:40:001
530799640,7cyclictest241ktimersoftd/112:30:201
129991640,1ptp4l401ktimersoftd/307:45:263
530799636,9cyclictest25-21ksoftirqd/109:35:221
530799635,7cyclictest25-21ksoftirqd/111:05:001
530799633,7cyclictest25-21ksoftirqd/110:30:201
530799633,7cyclictest25-21ksoftirqd/109:33:581
530799633,7cyclictest25-21ksoftirqd/109:10:271
5307996331,8cyclictest25-21ksoftirqd/110:46:351
5307996329,4cyclictest25-21ksoftirqd/108:15:281
5308996249,6cyclictest33-21ksoftirqd/210:00:172
530799627,7cyclictest25-21ksoftirqd/111:05:311
530799626,9cyclictest25-21ksoftirqd/110:50:251
530799626,9cyclictest25-21ksoftirqd/110:20:011
530799626,9cyclictest25-21ksoftirqd/109:20:151
530799626,8cyclictest25-21ksoftirqd/112:00:261
530799626,11cyclictest25-21ksoftirqd/112:15:191
530799625,9cyclictest25-21ksoftirqd/107:45:141
530799625,7cyclictest25-21ksoftirqd/112:25:311
530799625,7cyclictest25-21ksoftirqd/111:20:251
530799624,8cyclictest25-21ksoftirqd/108:10:321
530799623,7cyclictest25-21ksoftirqd/112:40:001
530799621,8cyclictest241ktimersoftd/110:20:181
530799620,7cyclictest241ktimersoftd/109:00:011
530799620,11cyclictest241ktimersoftd/111:15:161
5308996146,8cyclictest33-21ksoftirqd/209:45:162
530799617,10cyclictest25-21ksoftirqd/112:10:201
530799616,8cyclictest25-21ksoftirqd/110:25:141
530799614,7cyclictest25-21ksoftirqd/111:55:311
5307996128,8cyclictest25-21ksoftirqd/109:55:011
5307996124,12cyclictest25-21ksoftirqd/109:05:141
530799611,7cyclictest241ktimersoftd/108:35:171
530799611,7cyclictest241ktimersoftd/108:35:161
5306996119,7cyclictest9-21ksoftirqd/011:45:000
530799606,8cyclictest8956-21/usr/sbin/munin07:15:261
530799606,8cyclictest25-21ksoftirqd/108:45:001
530799606,8cyclictest25-21ksoftirqd/108:45:001
530799606,8cyclictest25-21ksoftirqd/107:10:191
530799606,7cyclictest25-21ksoftirqd/110:00:361
530799606,6cyclictest9155-21/usr/sbin/munin11:50:301
530799605,9cyclictest25-21ksoftirqd/111:35:191
530799605,7cyclictest25-21ksoftirqd/107:30:311
530799604,7cyclictest25-21ksoftirqd/107:40:291
530799600,9cyclictest241ktimersoftd/109:50:181
260102600,5sleep2321ktimersoftd/209:00:292
129991600,1ptp4l401ktimersoftd/308:28:273
5309995952,4cyclictest28715-21turbostat12:35:003
530799597,9cyclictest25-21ksoftirqd/107:50:351
530799597,8cyclictest25-21ksoftirqd/107:35:301
530799594,8cyclictest25-21ksoftirqd/111:45:171
5307995924,5cyclictest25-21ksoftirqd/108:30:131
530799587,9cyclictest25-21ksoftirqd/109:15:311
530799585,9cyclictest25-21ksoftirqd/111:30:131
530799585,9cyclictest25-21ksoftirqd/111:30:131
530799585,8cyclictest25-21ksoftirqd/107:55:221
530799585,7cyclictest25-21ksoftirqd/110:05:331
530799585,7cyclictest25-21ksoftirqd/110:05:331
530799585,7cyclictest25-21ksoftirqd/108:45:171
530799584,8cyclictest25-21ksoftirqd/110:10:251
530799584,8cyclictest25-21ksoftirqd/109:45:261
129991580,1ptp4l401ktimersoftd/312:05:363
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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