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2025-12-06 - 07:18

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #2, 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.

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 highest latencies:
System rack2slot7s.osadl.org (updated Sat Dec 06, 2025 00:39:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
115218299584,40cyclictest1289123-21ssh23:24:211
1152182995748,6cyclictest3499535-21cups-browsed20:40:011
1152182995748,6cyclictest1234850-21grep22:10:011
1152182995345,5cyclictest0-21swapper/123:40:011
115218199535,15cyclictest1191472-21ssh21:14:250
1152181995339,7cyclictest151ktimers/020:49:220
1152182995042,5cyclictest1329994-21idleruntime-cro00:20:011
1152182995039,7cyclictest422-21dbus-daemon19:30:011
1152181995042,6cyclictest422-21dbus-daemon22:40:010
1152181995038,7cyclictest12450irq/32-eth023:14:250
1152181995028,19cyclictest1194498-21ssh21:19:100
115218199502,14cyclictest1252611-21ntpq22:34:230
1152181994935,8cyclictest12450irq/32-eth021:49:240
1152181994930,11cyclictest12450irq/32-eth021:24:180
1152183994838,8cyclictest0-21swapper/222:40:012
1152181994839,6cyclictest1185193-21unin-run21:00:020
1152181994833,5cyclictest1315591-21munin-run00:00:010
115218199481,14cyclictest1267386-21ntpq22:54:230
1152183994738,6cyclictest1223213-21latency_hist21:55:022
1152181994735,8cyclictest3499535-21cups-browsed23:39:250
115218399465,28cyclictest956-21mta-sts-daemon20:29:262
1152181994638,5cyclictest422-21dbus-daemon19:15:020
1152181994630,13cyclictest422-21dbus-daemon19:40:010
115218399457,24cyclictest437-21mta-sts-daemon23:54:212
1152182994536,6cyclictest1182193-21latency_hist20:50:011
1152182994534,7cyclictest1292630-21needreboot23:29:211
1152181994525,7cyclictest0-21swapper/000:15:390
1152181994510,10cyclictest1325903-21sed00:14:310
115218199448,15cyclictest1332731-21ssh00:24:210
115218199441,12cyclictest1186137-21ntpq21:04:230
115218199440,11cyclictest1263638-21ssh22:49:190
115218299431,34cyclictest1311090-21ssh23:54:231
1152181994332,6cyclictest151ktimers/020:09:180
1152181994327,13cyclictest3499535-21cups-browsed22:40:310
1152181994322,16cyclictest12450irq/32-eth022:29:290
1152181994315,24cyclictest491-21gdbus22:57:020
1152181994315,24cyclictest491-21gdbus22:57:020
115218199431,11cyclictest1336166-21ssh00:29:260
1152182994233,6cyclictest1215060-21unixbench_multi21:44:291
1152182994233,6cyclictest1215060-21unixbench_multi21:44:291
1152182994232,7cyclictest421-21avahi-daemon21:29:281
1152181994217,22cyclictest12450irq/32-eth021:29:300
115218199421,14cyclictest1311161-21ps23:54:260
115218199421,11cyclictest1291976-21ssh23:29:100
115218199421,11cyclictest1237904-21ssh22:14:240
115218199421,11cyclictest1229868-21memory22:04:160
115218199421,10cyclictest1273802-21ssh23:04:000
1152183994134,4cyclictest1300843-21munin-plugin-st23:40:012
1152182994134,4cyclictest0-21swapper/123:44:191
1152182994133,5cyclictest1238062-21processes22:14:291
1152182994131,6cyclictest1156696-21systemd-run19:25:011
1152182994131,4cyclictest0-21swapper/100:34:321
1152182994123,5cyclictest171rcu_preempt20:34:221
115218199413,29cyclictest1278088-21ssh23:09:180
115218199412,7cyclictest1187570-21ntpq21:09:210
115218199412,7cyclictest1183149-21ntpq20:54:250
115218199412,6cyclictest1206698-21ntpq21:34:200
115218199411,10cyclictest1177137-21ntpq20:34:250
115218199411,10cyclictest1166585-21ntpq19:59:200
115218199410,16cyclictest1307240-21ntpq23:49:220
1152182994033,5cyclictest1152180-21cyclictest23:59:391
1152182994032,5cyclictest1167155-21munin-run20:00:001
115218199407,5cyclictest1165143-21ntpq19:54:230
115218199407,5cyclictest1165143-21ntpq19:54:230
115218199403,8cyclictest1342080-21ssh00:39:210
115218199403,10cyclictest1180136-21ntpq20:44:230
115218199403,10cyclictest1180136-21ntpq20:44:230
1152181994011,2cyclictest0-21swapper/020:24:180
115218199401,11cyclictest1168320-21/usr/sbin/munin20:04:290
115218199401,10cyclictest1239429-21ssh22:15:580
115218199401,10cyclictest1175545-21ntpq20:29:200
115218199401,10cyclictest1163822-21sensors_volt19:49:290
1152183993932,3cyclictest0-21swapper/223:09:182
1152183993930,5cyclictest1326420-21kworker/u8:0-xprtiod00:15:012
1152183993925,11cyclictest1330000-21idleruntime-cro00:20:012
1152182993932,4cyclictest0-21swapper/122:40:011
1152182993930,5cyclictest422-21dbus-daemon23:50:011
1152182993928,6cyclictest0-21swapper/121:49:221
115218199395,8cyclictest422-21dbus-daemon22:25:020
115218199392,13cyclictest1171071-21ntpq20:14:240
115218199392,10cyclictest1234078-21ssh22:09:260
115218199391,9cyclictest1212460-21ssh21:41:270
115218199391,9cyclictest1212460-21ssh21:41:270
115218199391,9cyclictest1208852-21ssh21:37:040
115218199391,9cyclictest1208852-21ssh21:37:040
115218199391,7cyclictest1288474-21tail23:24:110
115218199391,15cyclictest1159649-21awk19:34:310
115218199391,13cyclictest1318432-21ntpq00:04:220
115218199391,12cyclictest1157677-21ntpq19:29:240
115218199391,10cyclictest1301338-21ssh23:40:360
1152183993832,3cyclictest1-21systemd00:40:022
1152183993830,5cyclictest3499535-21cups-browsed22:51:542
1152183993830,5cyclictest1271935-21latency_hist23:00:012
1152183993830,5cyclictest1271935-21latency_hist23:00:012
1152183993830,5cyclictest1215438-21systemd-run21:45:012
1152183993830,5cyclictest1215438-21systemd-run21:45:012
1152183993829,6cyclictest491-21gdbus23:14:282
1152183993829,6cyclictest1249436-21timerandwakeup22:29:352
115218399382,32cyclictest1233899-21ssh22:09:192
115218399381,32cyclictest1303595-21ssh23:44:182
115218299383,25cyclictest1271111-21ssh22:59:251
115218299383,25cyclictest1271111-21ssh22:59:251
1152182993830,5cyclictest1191961-21grep21:14:321
1152182993830,5cyclictest1161156-21munin-plugin-st19:40:011
1152182993829,6cyclictest1315733-21cups-browsed00:15:011
1152182993829,6cyclictest1259968-21ntp_kernel_pll_22:44:241
1152182993827,7cyclictest1207627-21cron21:35:011
115218299382,26cyclictest1336193-21rm00:29:261
115218199389,3cyclictest1225248-21ssh21:58:500
115218199389,2cyclictest0-21swapper/019:45:010
1152181993815,21cyclictest0-21swapper/023:35:010
115218199381,12cyclictest1154563-21sed19:19:190
115218199381,11cyclictest1339207-21ntpq00:34:280
115218199381,11cyclictest1178661-21ntpq20:39:240
115218199381,10cyclictest1320112-21ssh00:06:130
115218199381,10cyclictest1284638-21ssh23:18:510
115218199380,10cyclictest1220965-21ssh21:53:000
115218399375,23cyclictest1336135-21ssh00:29:232
1152183993731,3cyclictest0-21swapper/221:49:252
1152183993729,5cyclictest1211541-21basename21:40:012
1152183993729,5cyclictest1211541-21basename21:40:012
1152183993728,5cyclictest0-21swapper/222:14:212
1152183993727,6cyclictest1158194-21systemd-run19:30:022
1152183993724,5cyclictest0-21swapper/220:49:152
1152182993725,7cyclictest0-21swapper/100:39:271
115218299372,30cyclictest1252531-21ssh22:34:191
1152182993714,17cyclictest422-21dbus-daemon21:59:231
115218299371,27cyclictest1199135-21ssh21:24:261
115218199373,7cyclictest1156112-21ntpq19:24:210
115218399363,25cyclictest657-21snmpd22:44:212
1152183993628,6cyclictest0-21swapper/223:19:142
1152183993628,5cyclictest1290132-21latency_hist23:25:022
1152183993628,5cyclictest1196084-21munin-run21:20:012
1152183993628,3cyclictest0-21swapper/221:59:172
1152183993626,6cyclictest698-21cron20:25:012
1152183993625,8cyclictest1241829-21sh22:19:272
1152182993628,5cyclictest453-21systemd-logind23:20:011
1152182993627,6cyclictest266-21systemd-journal22:55:011
1152182993627,6cyclictest1152714-21fschecks_time19:14:131
1152182993527,5cyclictest956-21mta-sts-daemon23:04:251
1152182993526,6cyclictest1164180-21systemd-run19:50:011
1152183993426,5cyclictest1179070-21unixbench_multi20:39:302
1152183993425,6cyclictest1199884-21cron21:25:012
1152183993425,5cyclictest1230617-21/usr/sbin/munin22:04:322
1152183993423,8cyclictest698-21cron22:35:012
115218399341,27cyclictest1314835-21ssh23:59:282
115218299343,23cyclictest1245450-21ssh22:24:281
1152182993427,4cyclictest959-21mta-sts-daemon20:19:121
1152182993427,4cyclictest1162216-21proc_pri19:44:261
1152182993426,5cyclictest1199911-21kworker/u8:7+xprtiod22:05:011
1152182993426,3cyclictest0-21swapper/123:09:301
1152182993425,6cyclictest1170092-21unixbench_multi20:09:291
115218199342,6cyclictest437-21mta-sts-daemon20:19:320
1152183993325,5cyclictest1163210-21fschecks_count19:49:132
115218399332,24cyclictest1263822-21ssh22:49:252
1152182993325,5cyclictest1264527-21cron22:50:011
1152182993325,5cyclictest1195767-21unixbench_multi21:19:331
1152182993324,7cyclictest1175502-21needreboot20:29:191
1152182993324,5cyclictest1211230-21unixbench_singl21:39:321
1152182993324,5cyclictest1211230-21unixbench_singl21:39:321
1152182993323,5cyclictest0-21swapper/123:34:211
1152182993322,5cyclictest0-21swapper/123:14:231
1152182993321,8cyclictest1242582-21/usr/sbin/munin22:20:021
1152182993321,6cyclictest1318541-21ssh00:04:261
1152182993318,11cyclictest3499535-21cups-browsed21:54:471
115218399323,21cyclictest1307181-21ssh23:49:192
1152183993227,2cyclictest0-21swapper/220:19:142
1152183993223,5cyclictest955-21mta-sts-daemon21:25:222
1152183993220,9cyclictest1295985-21iwlist23:34:162
1152183993220,8cyclictest1-21systemd21:00:022
1152183993215,14cyclictest351ktimers/200:34:262
115218299324,17cyclictest437-21mta-sts-daemon20:14:291
1152182993224,5cyclictest1-21systemd20:55:021
1152182993217,11cyclictest422-21dbus-daemon00:08:081
115218299321,26cyclictest1332648-21sh00:24:181
1152183993124,3cyclictest0-21swapper/223:29:132
1152183993123,5cyclictest957-21mta-sts-daemon19:59:162
1152183993123,5cyclictest1332209-21cpuspeed00:24:102
1152183993123,5cyclictest1275592-21latency_hist23:05:022
115218399311,24cyclictest1191349-21ssh21:14:202
1152183993024,3cyclictest0-21swapper/219:20:012
115218399302,23cyclictest1245429-21ssh22:24:272
1152183993021,6cyclictest1-21systemd20:05:012
1152182993022,5cyclictest1180693-21systemd-run20:45:011
1152182993022,5cyclictest1180693-21systemd-run20:45:011
1152182993019,3cyclictest171rcu_preempt21:04:201
1152183992924,2cyclictest0-21swapper/200:09:382
1152183992923,3cyclictest1168905-21kworker/u8:10-nfsiod20:10:022
1152183992923,3cyclictest0-21swapper/219:40:012
1152183992921,5cyclictest1182820-21kernelversion20:54:162
1152183992921,4cyclictest0-21swapper/220:35:012
1152182992923,3cyclictest0-21swapper/121:00:011
1152182992921,5cyclictest1154224-21fschecks_time19:19:131
1152182992920,4cyclictest0-21swapper/120:24:181
115218399284,15cyclictest959-21mta-sts-daemon20:14:282
1152183992822,3cyclictest0-21swapper/219:55:002
1152183992822,3cyclictest0-21swapper/219:55:002
1152183992820,5cyclictest3499535-21cups-browsed20:45:012
1152183992820,5cyclictest3499535-21cups-browsed20:45:012
1152183992819,6cyclictest1188169-21grep21:10:012
1152182992822,3cyclictest0-21swapper/119:35:011
1152182992818,6cyclictest422-21dbus-daemon22:25:381
1152183992721,3cyclictest0-21swapper/221:34:162
1152183992719,5cyclictest486-21gmain19:24:432
1152183992718,7cyclictest1318475-21collect200:04:242
1152183992718,7cyclictest1158836-21kernelversion19:34:152
1152183992621,2cyclictest0-21swapper/219:45:012
1152183992620,3cyclictest0-21swapper/221:05:022
1152183992617,6cyclictest959-21mta-sts-daemon19:15:022
115218299262,18cyclictest3499535-21cups-browsed21:09:261
1152182992512,11cyclictest271ktimers/119:54:221
1152182992512,11cyclictest271ktimers/119:54:221
1152183992316,4cyclictest266-21systemd-journal19:10:012
115218299225,11cyclictest271ktimers/120:04:191
115218499193,7cyclictest0-21swapper/321:39:183
115218499193,7cyclictest0-21swapper/321:39:183
115218199191,7cyclictest1152243-21wc19:10:020
115218499183,8cyclictest0-21swapper/323:59:273
115218499173,8cyclictest0-21swapper/322:14:203
115218499173,7cyclictest0-21swapper/323:39:293
115218499173,7cyclictest0-21swapper/321:34:193
115218499173,7cyclictest0-21swapper/321:14:193
115218499172,9cyclictest0-21swapper/322:24:253
115218499172,8cyclictest0-21swapper/323:14:253
115218499172,8cyclictest0-21swapper/300:24:193
115218499172,7cyclictest0-21swapper/321:54:213
115218499171,9cyclictest0-21swapper/321:44:173
115218499171,9cyclictest0-21swapper/321:44:173
115218499171,8cyclictest0-21swapper/320:44:253
115218499171,8cyclictest0-21swapper/320:44:253
115218499171,10cyclictest0-21swapper/322:59:203
115218499171,10cyclictest0-21swapper/322:59:203
115218299171,13cyclictest1152135-21munin-run19:10:011
115218499163,7cyclictest0-21swapper/323:49:233
115218499163,7cyclictest0-21swapper/300:04:263
115218499163,6cyclictest0-21swapper/321:29:323
115218499162,7cyclictest0-21swapper/322:04:213
115218499161,8cyclictest0-21swapper/321:19:203
115218499153,5cyclictest0-21swapper/320:29:253
115218499152,8cyclictest0-21swapper/322:39:213
115218499152,8cyclictest0-21swapper/319:24:203
115218499152,8cyclictest0-21swapper/300:29:293
115218499152,7cyclictest0-21swapper/323:19:203
115218499152,7cyclictest0-21swapper/323:09:193
115218499152,7cyclictest0-21swapper/322:49:223
115218499152,7cyclictest0-21swapper/322:19:293
115218499152,6cyclictest0-21swapper/300:09:223
115218499151,9cyclictest0-21swapper/322:34:273
115218499151,8cyclictest0-21swapper/323:24:213
115218499151,8cyclictest0-21swapper/322:54:233
115218499151,8cyclictest0-21swapper/300:34:263
115218499151,7cyclictest0-21swapper/320:34:203
115218499151,7cyclictest0-21swapper/319:54:203
115218499151,7cyclictest0-21swapper/319:54:203
115218499151,7cyclictest0-21swapper/319:39:183
115218499151,7cyclictest0-21swapper/319:19:253
115218499151,7cyclictest0-21swapper/300:14:193
115218499143,7cyclictest0-21swapper/300:39:213
115218499142,8cyclictest0-21swapper/322:29:223
115218499142,7cyclictest0-21swapper/321:24:203
115218499142,6cyclictest0-21swapper/323:26:063
115218499141,7cyclictest0-21swapper/322:44:133
115218499141,7cyclictest0-21swapper/319:29:183
115218499141,6cyclictest0-21swapper/321:09:223
115218499141,6cyclictest0-21swapper/320:54:223
115218499141,5cyclictest0-21swapper/319:14:183
115218499133,6cyclictest0-21swapper/323:44:183
115218499132,7cyclictest0-21swapper/323:54:173
115218499132,7cyclictest0-21swapper/321:59:233
115218499132,6cyclictest0-21swapper/320:59:183
115218499131,9cyclictest0-21swapper/300:17:463
115218499131,8cyclictest0-21swapper/321:49:083
115218499131,7cyclictest0-21swapper/323:04:183
115218499131,6cyclictest0-21swapper/320:14:213
115218499131,6cyclictest0-21swapper/320:09:183
115218499131,6cyclictest0-21swapper/319:34:193
115218499131,5cyclictest0-21swapper/321:04:193
115218499130,6cyclictest0-21swapper/320:04:193
115218499123,5cyclictest0-21swapper/319:59:183
115218499122,7cyclictest0-21swapper/320:20:013
115218499122,6cyclictest0-21swapper/323:32:393
115218499122,6cyclictest0-21swapper/322:08:333
115218499122,6cyclictest0-21swapper/320:49:183
115218499122,6cyclictest0-21swapper/319:45:023
115218499121,6cyclictest0-21swapper/319:49:233
115218499111,6cyclictest0-21swapper/320:24:193
115218499101,5cyclictest0-21swapper/320:39:173
11521849971,2cyclictest0-21swapper/319:10:013
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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