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2024-02-26 - 14:55

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #b, slot #7

Rack #0/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #1/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #2/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #3/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #4/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #5/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #6/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #7/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #8/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #9/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #a/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #b/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #c/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #d/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #e/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #f/#0 #1 #2 #3 #4 #5 #6 #7 #8 
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Click here to display the system's profile data or here to proceed to next system.
Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

Note that this system runs a non-RT kernel.
Data to construct the above plot have been generated using the RT test utility cyclictest.

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 rackbslot7s (updated Mon Feb 26, 2024 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
211732795119,7919sleep329547-21kworker/3:120:35:053
53282273910,2696sleep228642-21kworker/2:021:26:052
2183127249,680sleep221874-21ntpq22:20:172
2183127249,680sleep221874-21ntpq22:20:172
11258261917,585sleep111274-21/usr/sbin/munin23:30:151
1511258316,549sleep31543-21/usr/sbin/munin21:15:163
17573241639,297sleep217630-21fschecks_time23:50:202
17573241639,297sleep217630-21fschecks_time23:50:202
5187237131,282sleep25252-21latency_hist19:44:442
5187237131,282sleep25252-21latency_hist19:44:442
3208223688,327sleep232122-21ntpq19:25:182
15320234315,315sleep315406-21cut22:00:113
15320234315,315sleep315406-21cut22:00:113
3232622948,270sleep232473-21latency_hist22:54:462
24494225587,76sleep223651-21/usr/sbin/munin00:10:312
12215224358,144sleep212249-21fschecks_count21:50:122
32116223330,186sleep232156-21ntpq00:35:312
29431221314,75sleep229435-21find22:45:012
5525221114,180sleep05593-21grep19:45:110
9768221016,165sleep20-21swapper/219:59:422
19113220714,76sleep219174-21fschecks_time23:55:122
7250219740,143sleep27313-21latency19:50:132
28780219312,74sleep228818-21latency_hist20:59:442
1942321928,172sleep3372-21snmpd22:12:433
18730218549,114sleep20-21swapper/222:10:162
15034217842,20sleep20-21swapper/221:59:452
6712217340,107sleep20-21swapper/223:15:182
20122217332,129sleep220153-21proc_pri20:30:242
3214321727,56sleep20-21swapper/221:10:062
29685216926,83sleep229837-21date00:29:452
5378216515,133sleep35478-21timerandwakeup23:10:223
30982216398,50sleep20-21swapper/221:05:172
2587216219,117sleep02735-21grep21:19:450
2134216112,94sleep20-21swapper/223:00:202
16074215934,46sleep20-21swapper/220:19:462
2681721569,33sleep20-21swapper/200:20:082
9509215545,42sleep20-21swapper/221:40:232
12624215326,110sleep212656-21fschecks_count23:35:132
30847215114,112sleep20-21swapper/219:20:252
817121508,124sleep226377-21cyclictest23:20:152
28878215011,47sleep20-21swapper/222:41:052
14491214994,37sleep20-21swapper/220:14:452
3689214733,15sleep20-21swapper/223:05:202
726021458,123sleep27404-21date21:34:462
2901821349,42sleep20-21swapper/219:15:202
10183213358,15sleep20-21swapper/220:00:112
1632121317,14sleep20-21swapper/220:20:062
7048212819,82sleep17177-21unixbench_singl23:15:251
1910921268,60sleep21-21systemd20:29:432
27026212445,60sleep20-21swapper/222:35:242
22616212414,96sleep122645-21processes00:05:291
750212333,71sleep2872-21timerwakeupswit22:55:232
23610212310,98sleep023704-21cat22:25:200
7905212244,16sleep20-21swapper/221:35:182
2821212210,20sleep20-21swapper/221:20:082
27444212026,65sleep327456-21apt-get20:55:043
9303211918,86sleep39389-21sed21:40:163
3115621198,51sleep231196-21http00:34:422
22159211947,33sleep20-21swapper/220:36:052
1748211919,81sleep20-21swapper/221:15:232
21228211818,77sleep021293-21timerandwakeup00:00:310
25495211748,20sleep20-21swapper/200:15:162
163921159,40sleep20-21swapper/219:30:312
13777211518,79sleep313828-21awk23:39:423
7151211412,86sleep07200-21idleruntime19:50:110
7460211215,77sleep07530-21/usr/sbin/munin21:35:080
21204211116,79sleep20-21swapper/222:19:452
673211017,76sleep1749-21wc22:55:221
6185211017,73sleep16333-21unixbench_singl19:45:241
16193211015,30sleep20-21swapper/222:00:552
16193211015,30sleep20-21swapper/222:00:552
21569210921,31sleep00-21swapper/020:35:190
15868210913,82sleep315920-21interrupts23:45:163
15868210913,82sleep315920-21interrupts23:45:163
19577210822,26sleep10-21swapper/122:14:431
2687021078,35sleep20-21swapper/219:10:152
11651210725,20sleep211642-21apt-get20:05:082
952321069,34sleep20-21swapper/223:25:072
16965210614,75sleep317088-21sed20:20:233
30338210425,23sleep20-21swapper/221:04:452
26719210420,15sleep20-21swapper/220:50:232
26719210420,15sleep20-21swapper/220:50:232
22860210420,16sleep20-21swapper/220:40:132
22355210419,66sleep322105-21/usr/sbin/munin00:05:193
4848210310,32sleep20-21swapper/223:10:092
25909210316,17sleep10-21swapper/100:15:271
21031210333,38sleep20-21swapper/200:00:252
31831210223,61sleep331849-21idleruntime-cro21:09:423
1328210213,74sleep31394-21swap19:30:273
7996210119,60sleep38097-21fschecks_time23:20:123
2719210115,71sleep12754-21tr19:35:221
2306621019,33sleep20-21swapper/222:25:062
10641210121,14sleep20-21swapper/221:45:072
6980210018,60sleep36988-21cpu19:50:063
2658629913,70sleep026731-21wc00:19:460
446829821,56sleep04477-21modprobe23:09:420
35652966,33sleep20-21swapper/219:39:432
3170429617,54sleep031851-21unixbench_multi22:50:240
3276129513,22sleep30-21swapper/321:10:233
2425829516,60sleep324328-21switchtime00:10:283
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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