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2023-02-01 - 13:53

x86 Intel Atom Z530 @1600 MHz, Linux 3.12.61-rt81 (Profile)

Latency plot of system in rack #1, slot #8
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 highest latencies:
System rack1slot8.osadl.org (updated Wed Feb 01, 2023 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
32175999122,837cyclictest304-21memory07:10:210
3217599879791,75cyclictest28858-21ps08:35:300
319632742717,16sleep10-21swapper/107:08:191
3217699499419,48cyclictest0-21swapper/108:46:521
3217599462383,51cyclictest0-21swapper/008:46:520
316772181156,16sleep00-21swapper/007:05:250
2119991010,5rtkit-daemon2118-21rtkit-daemon10:10:240
3217699735,14cyclictest0-21swapper/110:13:581
3217699735,10cyclictest0-21swapper/110:34:501
32175997335,20cyclictest0-21swapper/011:47:460
3217699723,8cyclictest8750-21ssh11:00:221
32175997243,23cyclictest0-21swapper/012:20:300
3217699715,14cyclictest0-21swapper/111:50:101
3217699715,12cyclictest0-21swapper/109:55:221
43532700,4sleep04354-21sh10:53:130
3217699706,10cyclictest0-21swapper/109:53:301
3217699705,55cyclictest22711-21gvfsd-trash12:20:221
3217699703,9cyclictest22064-21crond09:35:001
3217699703,22cyclictest12318-21ssh11:05:391
3217699703,10cyclictest4600-21munin-node09:00:181
3217699702,9cyclictest26387-21munin-node11:30:181
211999700,4rtkit-daemon27875-21ssh09:44:240
3217699696,11cyclictest0-21swapper/112:25:381
3217699695,24cyclictest0-21swapper/111:26:451
3217699695,13cyclictest0-21swapper/112:39:241
3217699695,13cyclictest0-21swapper/111:20:201
3217699692,8cyclictest31403-21latency_hist10:45:011
32175996941,22cyclictest0-21swapper/012:11:160
32175996919,43cyclictest0-21swapper/010:26:020
3217699687,53cyclictest0-21swapper/112:15:221
3217699686,10cyclictest0-21swapper/109:20:201
3217699685,14cyclictest0-21swapper/109:43:361
3217699684,55cyclictest14290-21ssh11:10:171
3217699683,7cyclictest20219-21memory10:25:221
3217699683,55cyclictest5340-21munin-node07:25:211
3217699683,55cyclictest16831-21munin-node09:25:251
3217699682,8cyclictest1442-21runrttasks10:18:201
32175996840,22cyclictest0-21swapper/007:44:420
32175996839,23cyclictest0-21swapper/009:33:560
3217699678,52cyclictest0-21swapper/110:25:011
3217699676,9cyclictest0-21swapper/107:14:041
3217699676,10cyclictest0-21swapper/109:17:331
3217699675,9cyclictest0-21swapper/110:05:311
3217699675,10cyclictest0-21swapper/110:51:181
3217699675,10cyclictest0-21swapper/110:01:541
3217699674,13cyclictest0-21swapper/110:59:181
3217699673,8cyclictest679-21seq10:46:371
3217699673,7cyclictest29811-21latency_hist08:40:021
3217699673,54cyclictest1442-21runrttasks07:20:121
3217699673,11cyclictest17597-21ls11:15:221
3217699672,59cyclictest17962-21cat12:10:251
32175996740,21cyclictest0-21swapper/008:00:130
211999670,22rtkit-daemon2118-21rtkit-daemon12:00:170
3217699666,11cyclictest0-21swapper/112:03:561
3217699665,9cyclictest0-21swapper/109:45:191
3217699665,10cyclictest0-21swapper/107:54:141
3217699664,53cyclictest2721-21gltestperf08:55:161
3217699664,11cyclictest1070-21snmpd09:35:281
3217699663,8cyclictest25114-21gltestperf08:25:191
3217699662,9cyclictest7206-21ntp_offset07:30:261
3217699662,55cyclictest15516-21unixbench_multi12:05:361
32175996643,17cyclictest0-21swapper/011:22:200
32175996641,19cyclictest0-21swapper/012:15:260
3217699656,52cyclictest0-21swapper/111:55:201
3217699655,11cyclictest0-21swapper/109:10:011
3217699654,53cyclictest11967-21munin-node07:45:251
3217699653,11cyclictest32363-21munin-node11:40:191
3217699653,10cyclictest29376-21ssh12:30:151
3217699653,10cyclictest23759-21needreboot08:20:261
3217599655,50cyclictest0-21swapper/012:26:340
32175996539,20cyclictest0-21swapper/011:38:100
32175996520,38cyclictest0-21swapper/009:26:510
3217699648,50cyclictest0-21swapper/109:05:351
3217699645,10cyclictest0-21swapper/108:30:141
3217699645,10cyclictest0-21swapper/108:14:221
3217699644,9cyclictest17107-21munin-node08:00:211
3217699644,10cyclictest8494-21gltestperf07:35:241
3217699644,10cyclictest3158-21idleruntime-cro07:20:001
3217699644,10cyclictest25848-21df10:35:201
3217699643,8cyclictest1442-21runrttasks08:15:071
3217699643,52cyclictest19188-21munin-node08:05:321
3217699643,12cyclictest29637-21munin-node11:35:271
32175996440,18cyclictest0-21swapper/008:00:000
32175996438,20cyclictest0-21swapper/011:07:250
32175996437,21cyclictest0-21swapper/012:09:040
32175996421,37cyclictest29862-21ssh09:46:430
3217699637,10cyclictest0-21swapper/108:50:131
3217699636,9cyclictest0-21swapper/108:45:011
3217699634,9cyclictest10026-21munin-node07:40:201
3217699634,11cyclictest15316-21munin-node07:55:211
3217699633,10cyclictest2619-21munin-node11:45:151
3217599635,52cyclictest0-21swapper/010:18:540
32175996338,19cyclictest0-21swapper/007:21:210
32175996337,20cyclictest0-21swapper/009:57:400
32175996337,20cyclictest0-21swapper/009:39:000
32175996336,20cyclictest0-21swapper/010:24:200
32175996242,15cyclictest0-21swapper/008:40:230
32175996240,16cyclictest0-21swapper/011:18:190
32175996239,16cyclictest0-21swapper/011:03:280
32175996226,30cyclictest0-21swapper/010:00:240
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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