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2026-03-06 - 21:11

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #e, slot #8

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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  Congatec
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.

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
Compare latency of primary with shadow system
Characteristics of the highest latencies:
System rackeslot8s.osadl.org (updated Fri Mar 06, 2026 11:37:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1371991815,1cyclictest0-21swapper/311:05:123
137199181,13cyclictest218012-21turbostat09:50:013
137199176,8cyclictest307425-21turbostat10:50:013
137199176,8cyclictest210610-21turbostat09:45:003
1371991714,1cyclictest0-21swapper/309:55:103
1371991714,1cyclictest0-21swapper/309:55:103
1371991714,1cyclictest0-21swapper/308:25:163
137199171,12cyclictest93478-21turbostat08:20:003
173198160,4rtkit-daemon293029-21diskstats10:40:120
1371991613,1cyclictest0-21swapper/310:25:203
1371991613,1cyclictest0-21swapper/307:50:003
137199161,11cyclictest41516-21taskset07:35:253
137199155,7cyclictest3268412sleep311:00:193
137199155,7cyclictest3146902sleep310:54:423
1371991513,1cyclictest0-21swapper/309:50:213
1371991513,0cyclictest0-21swapper/310:15:523
1371991513,0cyclictest0-21swapper/310:15:513
1371991513,0cyclictest0-21swapper/309:06:273
1371991513,0cyclictest0-21swapper/308:40:203
1371991512,1cyclictest0-21swapper/310:30:133
1371991512,1cyclictest0-21swapper/309:18:433
1371991512,1cyclictest0-21swapper/309:01:053
137199151,11cyclictest22974-21taskset07:25:123
137199151,11cyclictest158447-21taskset09:10:013
3314752141,4sleep0332879-21cut11:05:170
1790552140,5sleep0179102-21ntp_states09:20:220
137199145,6cyclictest3587352sleep311:22:313
137199144,7cyclictest193762sleep307:20:193
137199141,9cyclictest2343582sleep310:00:153
137199141,9cyclictest188637-21taskset09:30:143
1371991413,0cyclictest0-21swapper/311:33:483
1371991413,0cyclictest0-21swapper/307:30:123
1371991412,1cyclictest0-21swapper/309:25:583
1371991412,0cyclictest0-21swapper/311:28:403
1371991412,0cyclictest0-21swapper/310:21:503
1371991411,1cyclictest0-21swapper/308:55:153
1371991411,1cyclictest0-21swapper/308:05:213
1371991411,1cyclictest0-21swapper/308:02:493
137199141,10cyclictest7730-21turbostat07:15:013
137199141,10cyclictest67318-21taskset07:55:243
137199141,10cyclictest48451-21turbostat07:45:003
137199141,10cyclictest285442-21chrt10:35:133
137199141,10cyclictest246048-21taskset10:05:203
137199140,10cyclictest113956-21taskset08:35:163
1939842131,7sleep0194023-21ntpq09:30:230
173198130,8rtkit-daemon137426-21/usr/sbin/munin08:50:181
173198130,4rtkit-daemon351478-21ssh11:18:170
137199131,9cyclictest344771-21taskset11:15:053
137199131,9cyclictest131421-21taskset08:45:263
137199131,9cyclictest106735-21taskset08:30:143
137199131,8cyclictest292870-21taskset10:40:103
137199131,8cyclictest173737-21taskset09:20:113
1371991312,0cyclictest0-21swapper/308:10:373
1371991311,1cyclictest0-21swapper/310:10:593
1371991310,1cyclictest0-21swapper/309:38:013
1371991310,1cyclictest0-21swapper/307:15:013
137199130,9cyclictest1323612sleep308:50:103
10062130,3sleep30-21swapper/307:07:173
2858152120,4sleep2286288-21sed10:35:172
173198120,7rtkit-daemon80587-21pluginstate08:10:001
173198120,4rtkit-daemon7920-21munin-node07:57:321
137199129,1cyclictest0-21swapper/308:20:183
137199121,9cyclictest321037-21chrt10:55:303
137199121,8cyclictest55119-21taskset07:50:123
1371991210,1cyclictest0-21swapper/311:10:393
2458982110,8sleep2246047-21ld10:05:192
1739572110,8sleep1174156-21iwlist09:20:141
173198110,4rtkit-daemon453-21wpa_supplicant09:00:341
923422101,5sleep192483-21ntpq08:15:191
41941872100,5sleep04194230-21ntpq07:05:260
3575802102,4sleep1357626-21ntpq11:20:211
3433232101,5sleep1343327-21ssh11:10:311
3294762101,6sleep0329477-21sh11:04:100
2844782101,2sleep10-21swapper/110:32:411
173198100,6rtkit-daemon53886-21ld07:45:201
173198100,6rtkit-daemon218922-21cut09:50:140
173198100,5rtkit-daemon42021-21munin-run07:40:001
173198100,2rtkit-daemon269547-21ssh10:22:062
98925291,5sleep298969-21ntpq08:20:212
93727291,4sleep193760-21apt-get08:20:121
73179290,6sleep273228-21ntpq08:00:212
55269291,5sleep00-21swapper/007:50:130
365874290,6sleep2365878-21ssh11:26:402
357735291,5sleep0357850-21python311:20:240
292830291,5sleep2292865-21ssh10:40:102
277735290,6sleep2277782-21pluginstate10:30:002
249701291,5sleep2250515-21ssh10:10:162
201391291,4sleep1201447-21ntpq09:35:211
181308290,6sleep0181382-21sort09:25:140
17319890,5rtkit-daemon643-21snmpd10:05:590
17319890,5rtkit-daemon643-21snmpd08:26:001
17319890,5rtkit-daemon239182-21tail10:00:240
17319890,5rtkit-daemon158207-21diskmemload11:10:410
17319890,5rtkit-daemon158207-21diskmemload09:31:262
17319890,5rtkit-daemon0-21swapper/010:47:150
17319890,4rtkit-daemon278224-21df_inode10:30:130
17319890,3rtkit-daemon500-21gmain10:17:262
17319890,3rtkit-daemon500-21gmain10:17:252
17319890,2rtkit-daemon165497-21ssh09:14:241
17319890,1rtkit-daemon0-21swapper/010:36:100
17319890,1rtkit-daemon0-21swapper/010:24:350
154534290,6sleep0156681-21cut09:05:190
131297291,5sleep2131420-21python308:45:252
106573291,4sleep1106576-21apt-get08:30:131
6722280,4sleep26780-21ntpq07:10:212
62966281,4sleep264773-21grep07:55:162
4189000280,2sleep20-21swapper/207:05:162
352457280,5sleep2352274-21/usr/sbin/munin11:20:142
314258281,5sleep1158207-21diskmemload10:53:071
307892281,3sleep20-21swapper/210:50:162
307401280,5sleep2307405-21ssh10:50:012
299331280,6sleep1299333-21ssh10:42:411
291339281,4sleep1291341-21ssh10:35:361
230973281,4sleep00-21swapper/009:55:210
230973281,4sleep00-21swapper/009:55:200
210166280,6sleep2210169-21sh09:43:232
197227280,5sleep0198374-21kthreadcore09:35:170
17319880,5rtkit-daemon643-21snmpd09:46:000
17319880,5rtkit-daemon453-21wpa_supplicant07:06:381
17319880,5rtkit-daemon249200-21ssh10:10:160
17319880,4rtkit-daemon643-21snmpd10:27:220
17319880,4rtkit-daemon453-21wpa_supplicant09:35:062
17319880,4rtkit-daemon435-21avahi-daemon08:55:021
17319880,4rtkit-daemon4047-21cut07:10:181
17319880,4rtkit-daemon158207-21diskmemload10:52:210
17319880,4rtkit-daemon125668-21cron08:45:001
17319880,3rtkit-daemon366630-21ssh11:29:220
17319880,1rtkit-daemon0-21swapper/107:44:411
17319880,1rtkit-daemon0-21swapper/010:57:530
165661280,6sleep0165899-21apt-key09:15:000
16524281,3sleep116557-21apt-get07:20:131
108031280,6sleep2109987-21kthreadcore08:30:182
100151281,3sleep0100154-21apt-get08:25:110
7708270,4sleep17920-21munin-node07:15:001
43562270,4sleep044682-21kthreadcore07:40:170
336268271,4sleep2158207-21diskmemload11:06:512
32523271,3sleep10-21swapper/107:30:191
262441271,3sleep0158207-21diskmemload10:18:320
262441271,3sleep0158207-21diskmemload10:18:320
233572270,4sleep1233772-21hddtemp_smartct10:00:131
219732270,4sleep1221011-21grep09:50:161
216421270,4sleep2216460-21ssh09:45:252
205395271,3sleep10-21swapper/109:40:181
17319870,4rtkit-daemon7920-21munin-node09:27:471
17319870,4rtkit-daemon500-21gmain09:44:490
17319870,4rtkit-daemon500-21gmain08:10:411
17319870,3rtkit-daemon7920-21munin-node09:15:421
17319870,3rtkit-daemon643-21snmpd11:31:110
17319870,3rtkit-daemon643-21snmpd09:07:501
17319870,3rtkit-daemon55080-21seq07:50:081
17319870,3rtkit-daemon125950-21apt-get08:45:131
17319870,1rtkit-daemon0-21swapper/108:35:481
1723270,4sleep01925-21hddtemp_smartct07:10:140
139396271,3sleep20-21swapper/208:55:142
121740270,4sleep2123861-21cut08:40:162
119443271,3sleep0119476-21apt-get08:40:100
113362271,3sleep2113950-21ps08:35:162
10108270,3sleep010111-21apt-get07:15:120
88302261,3sleep288727-21kthreadcore08:15:152
82683260,3sleep084706-21kthreadcore08:10:180
75202260,3sleep076107-21grep08:05:160
55083261,2sleep20-21swapper/207:50:112
54722260,1sleep20-21swapper/207:48:392
366331261,2sleep1158207-21diskmemload11:28:181
350252260,1sleep10-21swapper/111:15:251
345652260,3sleep2346618-21grep11:15:172
342671261,2sleep20-21swapper/211:10:202
336080260,3sleep1336084-21ssh11:06:101
324802261,2sleep20-21swapper/211:00:192
321029260,3sleep1321033-21ssh10:55:281
316899260,3sleep2318889-21kthreadcore10:55:172
30817260,4sleep032522-21kthreadcore07:30:180
29753260,3sleep230005-21cut07:30:162
29100260,2sleep229123-21munin-run07:30:012
263329260,3sleep1263147-21/usr/sbin/munin10:20:131
248225260,3sleep1248234-21ssh10:10:121
247769260,2sleep10-21swapper/110:09:311
238501260,3sleep2238650-21ld10:00:182
231623260,4sleep20-21swapper/209:55:352
231623260,4sleep20-21swapper/209:55:342
228425260,3sleep1230531-21cut09:55:171
228425260,3sleep1230531-21cut09:55:161
224959260,3sleep2224963-21ssh09:53:252
217567260,1sleep10-21swapper/109:48:281
179918260,1sleep2179922-21ssh09:21:352
17319860,3rtkit-daemon643-21snmpd07:25:591
17319860,2rtkit-daemon72715-21kthreadcore08:00:181
17319860,2rtkit-daemon0-21swapper/110:15:181
17319860,2rtkit-daemon0-21swapper/110:15:181
171843260,4sleep2172002-21cat09:15:272
16560261,2sleep20-21swapper/207:20:142
15970260,1sleep20-21swapper/207:16:332
158028261,3sleep2643-21snmpd09:07:522
139086260,3sleep0139241-21diskstats08:55:120
138174260,1sleep20-21swapper/208:50:262
118239260,3sleep0118291-21ntpq08:35:220
79682250,3sleep20-21swapper/208:05:232
48307250,1sleep20-21swapper/207:43:272
41918250,3sleep00-21swapper/007:38:590
327857250,2sleep10-21swapper/111:00:221
278031250,2sleep20-21swapper/210:30:132
22352250,1sleep00-21swapper/007:20:440
188575250,2sleep1188577-21ssh09:30:091
181116250,2sleep20-21swapper/209:25:122
163802250,2sleep2163843-21ssh09:10:212
151611250,1sleep00-21swapper/009:03:340
151530250,1sleep20-21swapper/209:02:332
138504251,2sleep0151ktimers/008:54:410
128002250,2sleep0130080-21kthreadcore08:45:190
112448250,1sleep00-21swapper/008:31:440
93955240,1sleep00-21swapper/008:20:140
91604240,1sleep00-21swapper/008:15:170
80797240,1sleep20-21swapper/208:10:112
73851240,3sleep00-21swapper/008:01:310
54595240,3sleep00-21swapper/007:47:010
368568240,1sleep20-21swapper/211:30:162
36839240,2sleep238039-21grep07:35:172
367097240,1sleep10-21swapper/111:30:101
306545241,1sleep10-21swapper/110:46:431
272815240,1sleep10-21swapper/110:25:181
22936240,3sleep00-21swapper/007:25:100
61806230,1sleep00-21swapper/007:55:150
166220230,1sleep0158207-21diskmemload09:15:120
100312230,1sleep20-21swapper/208:25:132
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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