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2026-08-30 - 20:30

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #9, slot #3

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.
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 792 highest latencies:
System rack9slot3s.osadl.org (updated Sun Aug 30, 2026 12:44:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
119591620,42ptp4l0-21swapper/207:06:162
119591620,32ptp4l0-21swapper/107:05:371
119591610,41ptp4l0-21swapper/007:06:150
1295425250,1sleep30-21swapper/307:05:153
63692480,1sleep16331-21perf11:55:021
66272440,0sleep10-21swapper/111:55:131
267082220,1sleep326711-21aten_r9power_po08:30:133
119591200,0ptp4l0-21swapper/011:00:190
119591180,0ptp4l0-21swapper/107:30:181
119591170,1ptp4l0-21swapper/208:50:132
119591170,0ptp4l0-21swapper/108:40:181
119591170,0ptp4l0-21swapper/007:40:240
119591160,1ptp4l31371-21apt-get09:40:130
119591160,1ptp4l31209-21apt-get10:40:140
119591160,1ptp4l226-21systemd-journal09:40:151
119591160,1ptp4l18859-21snmp_o5powerctl12:15:220
119591160,1ptp4l1600-21apt-get09:45:130
119591160,1ptp4l13556-21snmp_o5powerctl12:05:231
119591160,1ptp4l12928-21apt-get08:05:030
119591160,0ptp4l0-21swapper/109:45:021
15405991514,0cyclictest33-21ksoftirqd/208:55:222
119591150,1ptp4l7861-21apt-get07:55:130
119591150,1ptp4l7106-21apt-get09:55:131
119591150,1ptp4l6890-21snmp_o5powerctl07:50:211
119591150,1ptp4l31908-21cat08:40:010
119591150,1ptp4l3105-21snmp_o5powerctl10:45:211
119591150,1ptp4l30217-21snmp_o5powerctl10:35:230
119591150,1ptp4l28532-21ls08:30:241
119591150,1ptp4l28190-21ntp_states07:30:190
119591150,1ptp4l27404-21snmp_o5powerctl11:30:231
119591150,1ptp4l26652-21perl09:30:171
119591150,1ptp4l25075-21ls10:25:240
119591150,1ptp4l19061-21ls11:15:201
119591150,1ptp4l18985-21grep09:15:171
119591150,1ptp4l18177-21snmp_o5powerctl07:15:011
119591150,1ptp4l16402-21irqstats10:10:160
119591150,1ptp4l15213-21perf09:10:021
119591150,1ptp4l14147-21snmp_o5powerctl11:05:220
119591150,1ptp4l12794-21cstates11:05:131
119591150,1ptp4l12635-21apt-get10:05:120
119591150,1ptp4l12039-21ls09:00:230
119591150,1ptp4l11822-21snmp_o5powerctl09:00:221
119591150,1ptp4l11205-21ntp_states11:00:201
119591150,0ptp4l0-21swapper/112:15:141
119591150,0ptp4l0-21swapper/111:45:211
119591150,0ptp4l0-21swapper/110:15:121
119591150,0ptp4l0-21swapper/110:10:121
119591150,0ptp4l0-21swapper/109:35:171
119591150,0ptp4l0-21swapper/108:25:131
119591150,0ptp4l0-21swapper/107:25:131
119591150,0ptp4l0-21swapper/012:20:130
119591150,0ptp4l0-21swapper/011:45:120
119591140,1ptp4l9880-21apt-config10:00:010
119591140,1ptp4l8622-21swap10:55:231
119591140,1ptp4l6966-21ls07:50:220
119591140,1ptp4l6656-21perf09:55:020
119591140,1ptp4l5964-21smartctl10:50:210
119591140,1ptp4l31058-21ntpq07:35:201
119591140,1ptp4l30276-21processes09:35:210
119591140,1ptp4l29455-21sensors12:35:221
119591140,1ptp4l29011-21memory12:35:180
119591140,1ptp4l27316-21ls09:30:190
119591140,1ptp4l2614-21aten_r9power_en07:45:140
119591140,1ptp4l24409-21latency10:25:191
119591140,1ptp4l22511-21aten_r9power_cu12:25:130
119591140,1ptp4l22511-21aten_r9power_cu12:25:130
119591140,1ptp4l19372-21cat09:15:180
119591140,1ptp4l16413-21cstates08:10:151
119591140,1ptp4l16413-21cstates08:10:141
119591140,1ptp4l1578-21mailstats07:40:221
119591140,1ptp4l1540399cyclictest12:00:130
119591140,1ptp4l15055-21snmp_o5powerctl08:05:221
119591140,1ptp4l14288-21perf12:10:010
119591140,1ptp4l11645-21grep10:00:211
119591140,1ptp4l10644-21aten_r9power_vo08:00:141
119591140,0ptp4l29208-21apt-get07:35:020
119591140,0ptp4l0-21swapper/207:15:222
119591140,0ptp4l0-21swapper/112:25:241
119591140,0ptp4l0-21swapper/112:25:231
119591140,0ptp4l0-21swapper/112:20:151
119591140,0ptp4l0-21swapper/112:01:421
119591140,0ptp4l0-21swapper/111:35:141
119591140,0ptp4l0-21swapper/111:20:211
119591140,0ptp4l0-21swapper/111:20:211
119591140,0ptp4l0-21swapper/111:10:231
119591140,0ptp4l0-21swapper/110:50:021
119591140,0ptp4l0-21swapper/110:40:221
119591140,0ptp4l0-21swapper/110:30:131
119591140,0ptp4l0-21swapper/110:20:211
119591140,0ptp4l0-21swapper/110:05:171
119591140,0ptp4l0-21swapper/109:50:171
119591140,0ptp4l0-21swapper/109:25:231
119591140,0ptp4l0-21swapper/109:10:171
119591140,0ptp4l0-21swapper/108:50:161
119591140,0ptp4l0-21swapper/108:35:221
119591140,0ptp4l0-21swapper/107:55:231
119591140,0ptp4l0-21swapper/107:45:261
119591140,0ptp4l0-21swapper/107:14:521
119591140,0ptp4l0-21swapper/011:55:160
119591140,0ptp4l0-21swapper/011:30:160
119591140,0ptp4l0-21swapper/011:25:210
119591140,0ptp4l0-21swapper/011:15:130
119591140,0ptp4l0-21swapper/008:55:160
119591140,0ptp4l0-21swapper/008:30:230
119591140,0ptp4l0-21swapper/008:20:210
119591140,0ptp4l0-21swapper/008:15:200
119591140,0ptp4l0-21swapper/008:00:140
119591140,0ptp4l0-21swapper/007:13:180
119591130,0ptp4l0-21swapper/212:25:222
119591130,0ptp4l0-21swapper/212:25:212
119591130,0ptp4l0-21swapper/212:15:152
119591130,0ptp4l0-21swapper/212:05:192
119591130,0ptp4l0-21swapper/211:55:182
119591130,0ptp4l0-21swapper/211:45:172
119591130,0ptp4l0-21swapper/211:20:172
119591130,0ptp4l0-21swapper/211:20:162
119591130,0ptp4l0-21swapper/210:45:182
119591130,0ptp4l0-21swapper/210:15:152
119591130,0ptp4l0-21swapper/210:15:012
119591130,0ptp4l0-21swapper/209:45:202
119591130,0ptp4l0-21swapper/209:20:172
119591130,0ptp4l0-21swapper/208:05:192
119591130,0ptp4l0-21swapper/207:45:242
119591130,0ptp4l0-21swapper/112:30:141
119591130,0ptp4l0-21swapper/112:10:141
119591130,0ptp4l0-21swapper/111:40:131
119591130,0ptp4l0-21swapper/111:25:141
119591130,0ptp4l0-21swapper/110:35:151
119591130,0ptp4l0-21swapper/109:20:151
119591130,0ptp4l0-21swapper/108:55:131
119591130,0ptp4l0-21swapper/108:45:131
119591130,0ptp4l0-21swapper/108:20:141
119591130,0ptp4l0-21swapper/108:15:131
119591130,0ptp4l0-21swapper/107:20:131
119591130,0ptp4l0-21swapper/012:30:160
119591130,0ptp4l0-21swapper/012:10:140
119591130,0ptp4l0-21swapper/011:50:150
119591130,0ptp4l0-21swapper/011:40:170
119591130,0ptp4l0-21swapper/011:35:130
119591130,0ptp4l0-21swapper/011:20:120
119591130,0ptp4l0-21swapper/011:20:110
119591130,0ptp4l0-21swapper/011:10:140
119591130,0ptp4l0-21swapper/010:55:170
119591130,0ptp4l0-21swapper/010:45:130
119591130,0ptp4l0-21swapper/010:30:190
119591130,0ptp4l0-21swapper/010:20:140
119591130,0ptp4l0-21swapper/010:15:140
119591130,0ptp4l0-21swapper/009:55:140
119591130,0ptp4l0-21swapper/009:25:150
119591130,0ptp4l0-21swapper/009:20:150
119591130,0ptp4l0-21swapper/009:10:150
119591130,0ptp4l0-21swapper/009:05:020
119591130,0ptp4l0-21swapper/008:50:140
119591130,0ptp4l0-21swapper/008:45:120
119591130,0ptp4l0-21swapper/008:40:150
119591130,0ptp4l0-21swapper/008:25:160
119591130,0ptp4l0-21swapper/008:10:150
119591130,0ptp4l0-21swapper/008:10:150
119591130,0ptp4l0-21swapper/007:25:150
119591130,0ptp4l0-21swapper/007:20:110
119591130,0ptp4l0-21swapper/007:15:020
119591120,0ptp4l0-21swapper/212:00:172
119591120,0ptp4l0-21swapper/211:10:182
119591120,0ptp4l0-21swapper/211:05:152
119591120,0ptp4l0-21swapper/209:41:422
119591120,0ptp4l0-21swapper/208:45:152
179322110,0sleep30-21swapper/309:15:013
119591110,0ptp4l0-21swapper/207:13:192
119591100,0ptp4l0-21swapper/209:53:262
119591100,0ptp4l0-21swapper/209:35:172
119591100,0ptp4l0-21swapper/208:40:162
119591100,0ptp4l0-21swapper/207:55:152
154069997,1cyclictest8726-21if_err_enp4s007:55:173
154069997,1cyclictest4354-21aten2.4-expect10:50:133
154069997,1cyclictest28312-21tr07:30:203
154069997,1cyclictest255442sleep310:28:473
154069997,1cyclictest20516-21hostname11:20:133
154069997,1cyclictest20516-21hostname11:20:123
154069997,1cyclictest20152-21cut08:15:203
154069997,1cyclictest19239-21grep10:15:183
154069997,1cyclictest18812-21sort09:15:153
154069997,1cyclictest13843-21sed09:05:183
154069997,1cyclictest13777-21chrt12:05:233
154059997,1cyclictest6390-21cat11:55:012
154059997,1cyclictest26222-21tr12:30:182
154059997,1cyclictest22082-21cut10:20:212
154059997,1cyclictest16044-21tune2fs09:10:162
154059997,1cyclictest14823-21taskset10:07:232
154059997,1cyclictest13056-21tr09:05:142
11959190,0ptp4l0-21swapper/212:36:192
11959190,0ptp4l0-21swapper/212:14:202
11959190,0ptp4l0-21swapper/211:40:322
11959190,0ptp4l0-21swapper/211:39:432
11959190,0ptp4l0-21swapper/211:30:402
11959190,0ptp4l0-21swapper/211:27:432
11959190,0ptp4l0-21swapper/211:15:072
11959190,0ptp4l0-21swapper/211:03:412
11959190,0ptp4l0-21swapper/210:57:452
11959190,0ptp4l0-21swapper/210:41:172
11959190,0ptp4l0-21swapper/210:38:502
11959190,0ptp4l0-21swapper/210:30:502
11959190,0ptp4l0-21swapper/210:25:192
11959190,0ptp4l0-21swapper/210:02:432
11959190,0ptp4l0-21swapper/209:57:112
11959190,0ptp4l0-21swapper/209:32:112
11959190,0ptp4l0-21swapper/209:27:102
11959190,0ptp4l0-21swapper/209:15:032
11959190,0ptp4l0-21swapper/208:31:212
11959190,0ptp4l0-21swapper/208:22:202
11959190,0ptp4l0-21swapper/208:17:052
11959190,0ptp4l0-21swapper/207:53:232
11959190,0ptp4l0-21swapper/207:30:562
11959190,0ptp4l0-21swapper/207:21:242
154069986,1cyclictest9648-21expr12:00:143
154069986,1cyclictest8369-21sed08:55:183
154069986,1cyclictest739-21cat07:40:173
154069986,1cyclictest7111-21cut11:55:163
154069986,1cyclictest7068-21seq09:55:053
154069986,1cyclictest6930-21cat10:55:123
154069986,1cyclictest6806-21sendmail_mailqu07:50:203
154069986,1cyclictest63732sleep309:51:373
154069986,1cyclictest5701-21if_err_enp4s008:50:173
154069986,1cyclictest5353-21grep11:50:203
154069986,1cyclictest32231-21cat11:40:183
154069986,1cyclictest3221-21sed07:45:163
154069986,1cyclictest32148-21cat09:40:173
154069986,1cyclictest31981-21tail08:40:143
154069986,1cyclictest31169-21taskset10:40:043
154069986,1cyclictest30582-21chrt10:35:323
154069986,1cyclictest29727-21sh07:35:123
154069986,1cyclictest29559-21tr08:35:143
154069986,1cyclictest29360-21tail09:35:153
154069986,1cyclictest28898-21sort11:35:143
154069986,1cyclictest28376-21cut12:35:153
154069986,1cyclictest26242-21tr09:30:143
154069986,1cyclictest26185-21cat10:30:143
154069986,1cyclictest25734-21apt-get11:30:133
154069986,1cyclictest25534-21expr12:30:163
154069986,1cyclictest24764-21snmp_o5powerctl11:25:223
154069986,1cyclictest24635-21df07:25:163
154069986,1cyclictest24226-21tr08:25:143
154069986,1cyclictest23885-21chrt09:25:143
154069986,1cyclictest2384-21wc08:45:123
154069986,1cyclictest23764-21taskset07:23:143
154069986,1cyclictest22978-21diskstats12:25:143
154069986,1cyclictest22978-21diskstats12:25:143
154069986,1cyclictest22399-21cat10:20:233
154069986,1cyclictest2236-21cut11:45:163
154069986,1cyclictest21862-21cut09:20:203
154069986,1cyclictest21523-21cpu08:20:123
154069986,1cyclictest20077-21tr12:20:143
154069986,1cyclictest18728-21cut11:15:183
154069986,1cyclictest18683-21cut07:15:023
154069986,1cyclictest1792-21cat09:45:143
154069986,1cyclictest17337-21taskset11:12:413
154069986,1cyclictest17038-21cut08:10:173
154069986,1cyclictest17038-21cut08:10:173
154069986,1cyclictest15908-21cat07:10:153
154069986,1cyclictest14570-21cat08:05:193
154069986,1cyclictest14515-21bc12:10:123
154069986,1cyclictest1408-21taskset10:45:103
154069986,1cyclictest12826-21cat10:05:133
154069986,1cyclictest12807-21expr11:05:143
154069986,1cyclictest11179-21ntp_kernel_pll_11:00:193
154069986,1cyclictest10770-21tr08:00:133
154069986,1cyclictest10446-21cat10:00:153
154069986,1cyclictest10217-21cut09:00:133
154059986,1cyclictest4196-21readlink10:50:012
154059986,1cyclictest322962sleep207:40:042
154059986,1cyclictest319582sleep207:38:442
154059986,1cyclictest29720-21expr08:35:142
154059986,1cyclictest25386-21sh08:25:202
154059986,1cyclictest21713-21wc12:20:232
154059986,1cyclictest16416-21expr08:10:152
154059986,1cyclictest16416-21expr08:10:142
154059986,1cyclictest10551-21expr09:00:142
11959180,0ptp4l0-21swapper/208:00:112
11959180,0ptp4l0-21swapper/207:25:432
154069976,1cyclictest17242-21aten2.4-expect12:15:133
154069975,1cyclictest15923-21tail10:10:143
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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