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2025-11-28 - 21:05

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #3, slot #5

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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  Eltec
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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
Compare latency of primary with shadow system
Characteristics of the highest latencies:
System rack3slot5s.osadl.org (updated Fri Nov 28, 2025 12:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3041321640chrt121750irq/29-eth0_g0_11:25:431
2894021320sleep0121750irq/29-eth0_g0_11:23:000
2894021320sleep0121750irq/29-eth0_g0_11:23:000
3273121250sleep0121750irq/29-eth0_g0_10:13:100
864221140sleep1121750irq/29-eth0_g0_11:52:241
1211100ksoftirqd/1121850irq/30-eth0_g0_08:05:191
3224421030chrt121850irq/30-eth0_g0_07:33:391
1211030ksoftirqd/1121850irq/30-eth0_g0_07:06:491
1211000ksoftirqd/1121850irq/30-eth0_g0_08:30:401
1211000ksoftirqd/1121850irq/30-eth0_g0_08:30:401
1211000ksoftirqd/1121850irq/30-eth0_g0_07:05:120
121960ksoftirqd/1121850irq/30-eth0_g0_12:28:031
121960ksoftirqd/1121850irq/30-eth0_g0_12:28:031
144152950sleep1121850irq/30-eth0_g0_09:28:301
144152950sleep1121850irq/30-eth0_g0_09:28:301
107952930sleep1121850irq/30-eth0_g0_11:57:491
121890ksoftirqd/1121850irq/30-eth0_g0_08:11:551
121890ksoftirqd/1121850irq/30-eth0_g0_08:11:551
62752880sleep0121750irq/29-eth0_g0_10:27:250
209602850sleep0121850irq/30-eth0_g0_12:22:290
121850ksoftirqd/1121850irq/30-eth0_g0_09:06:311
121850ksoftirqd/1121850irq/30-eth0_g0_09:06:311
121850ksoftirqd/1121750irq/29-eth0_g0_07:09:590
121840ksoftirqd/1121850irq/30-eth0_g0_12:39:491
188772810sleep1121850irq/30-eth0_g0_08:20:111
121810ksoftirqd/1143692sleep012:05:420
121810ksoftirqd/1121850irq/30-eth0_g0_08:45:070
211292800sleep1121850irq/30-eth0_g0_12:23:091
121800ksoftirqd/1121850irq/30-eth0_g0_11:47:251
56432790sleep1121850irq/30-eth0_g0_07:47:181
121790ksoftirqd/1121850irq/30-eth0_g0_10:32:171
105302790sleep0121850irq/30-eth0_g0_08:00:070
125042780sleep1121850irq/30-eth0_g0_08:04:571
7792760sleep1121850irq/30-eth0_g0_11:33:511
35052760sleep1121850irq/30-eth0_g0_07:41:561
308192760sleep1121850irq/30-eth0_g0_10:08:401
240742760chrt121850irq/30-eth0_g0_12:30:150
121760ksoftirqd/1121850irq/30-eth0_g0_12:07:411
121760ksoftirqd/1121850irq/30-eth0_g0_07:29:461
260932750sleep1121850irq/30-eth0_g0_07:18:331
189202750sleep1121750irq/29-eth0_g0_10:58:541
121750ksoftirqd/1121850irq/30-eth0_g0_11:35:301
121750ksoftirqd/1121850irq/30-eth0_g0_08:43:101
42482740sleep1121850irq/30-eth0_g0_11:41:121
302112740sleep1121850irq/30-eth0_g0_08:47:281
280922740sleep1121850irq/30-eth0_g0_07:23:221
279412740sleep0121850irq/30-eth0_g0_08:41:300
121740ksoftirqd/1244542sleep009:52:450
111982740sleep0121850irq/30-eth0_g0_09:20:130
167552730sleep0121750irq/29-eth0_g0_10:53:260
121730ksoftirqd/1121850irq/30-eth0_g0_09:49:101
183712720sleep0121850irq/30-eth0_g0_09:37:580
179542720sleep1121850irq/30-eth0_g0_09:36:171
37122710sleep0121750irq/29-eth0_g0_07:42:470
322322710sleep1121850irq/30-eth0_g0_10:11:091
160612710sleep1121850irq/30-eth0_g0_09:31:541
182912690sleep1121850irq/30-eth0_g0_08:18:481
129482690sleep0121850irq/30-eth0_g0_10:44:340
40362680sleep1121850irq/30-eth0_g0_10:21:391
319932670sleep1121850irq/30-eth0_g0_08:51:251
318412670sleep0121750irq/29-eth0_g0_07:32:010
121670ksoftirqd/143312sleep011:41:320
121660ksoftirqd/120312sleep011:35:330
121660ksoftirqd/1180612sleep008:17:520
121660ksoftirqd/1121750irq/29-eth0_g0_12:30:241
64622650chrt121850irq/30-eth0_g0_10:28:111
301172650sleep0121850irq/30-eth0_g0_07:28:180
271542650sleep0121850irq/30-eth0_g0_11:19:040
204612630sleep1121850irq/30-eth0_g0_09:43:091
121630ksoftirqd/1121750irq/29-eth0_g0_08:29:461
121620ksoftirqd/1325782sleep011:31:140
164922610sleep0121750irq/29-eth0_g0_09:33:370
121600ksoftirqd/1172882sleep012:14:120
258672590sleep1121850irq/30-eth0_g0_08:36:251
84942580sleep1121850irq/30-eth0_g0_09:14:231
168142580sleep1121750irq/29-eth0_g0_10:53:401
132112580sleep0121750irq/29-eth0_g0_12:04:160
121580ksoftirqd/1133922sleep008:05:320
266132570sleep1121850irq/30-eth0_g0_11:16:541
193912570sleep0121850irq/30-eth0_g0_09:40:150
121570ksoftirqd/1302432sleep010:06:200
36392530sleep0121750irq/29-eth0_g0_09:01:170
227992530sleep0121750irq/29-eth0_g0_08:30:070
227992530sleep0121750irq/29-eth0_g0_08:30:070
130402530chrt121850irq/30-eth0_g0_10:44:551
250742520sleep0121750irq/29-eth0_g0_11:13:560
121520ksoftirqd/1225492sleep012:25:370
121520ksoftirqd/1225492sleep012:25:370
121510ksoftirqd/1121850irq/30-eth0_g0_09:15:480
118392510sleep1121850irq/30-eth0_g0_09:21:241
79422500sleep0121750irq/29-eth0_g0_10:30:530
321672490sleep0121750irq/29-eth0_g0_08:52:070
155272480sleep1121850irq/30-eth0_g0_12:10:021
121850470irq/30-eth0_g0_12603-21seq12:01:501
121460ksoftirqd/1121850irq/30-eth0_g0_12:39:080
121460ksoftirqd/1121850irq/30-eth0_g0_11:50:410
121460ksoftirqd/1121850irq/30-eth0_g0_07:53:210
121460ksoftirqd/1121750irq/29-eth0_g0_11:25:220
121450ksoftirqd/156572sleep007:47:210
121450ksoftirqd/1121850irq/30-eth0_g0_09:53:461
121750440irq/29-eth0_g0_99112sleep110:35:351
121750440irq/29-eth0_g0_2175-21runrttasks11:03:100
121750440irq/29-eth0_g0_2175-21runrttasks11:03:100
121440ksoftirqd/1121850irq/30-eth0_g0_10:16:121
121440ksoftirqd/1121850irq/30-eth0_g0_07:23:370
121850430irq/30-eth0_g0_470-21kworker/1:111:05:081
121750430irq/29-eth0_g0_5323-21cpu11:45:100
121750430irq/29-eth0_g0_10227-21runrttasks10:36:510
113082430sleep0121750irq/29-eth0_g0_11:59:510
87202420sleep1121850irq/30-eth0_g0_09:14:581
121850420irq/30-eth0_g0_470-21kworker/1:110:49:021
121850410irq/30-eth0_g0_10043-21seq07:58:301
121750410irq/29-eth0_g0_31ksoftirqd/010:22:300
121750410irq/29-eth0_g0_2566-21runrttasks09:10:400
121410ksoftirqd/1121850irq/30-eth0_g0_10:49:180
2234999401cyclictest2959-21sort09:00:131
121750400irq/29-eth0_g0_6591-21diskmemload09:48:180
121750400irq/29-eth0_g0_19418-21taskset12:19:300
121400ksoftirqd/1121750irq/29-eth0_g0_09:58:511
7462390sleep0757-21if_eth008:55:100
47002390sleep04714-21cpu09:05:090
47002390sleep04714-21cpu09:05:090
2234999391cyclictest236492sleep111:10:111
162572390sleep01932-21runrttasks08:13:490
162572390sleep01932-21runrttasks08:13:490
121850390irq/30-eth0_g0_121ksoftirqd/111:20:201
121850390irq/30-eth0_g0_121ksoftirqd/111:20:201
121750390irq/29-eth0_g0_31ksoftirqd/010:57:130
121750390irq/29-eth0_g0_274142sleep010:00:110
121750390irq/29-eth0_g0_263562taskset07:19:360
121750390irq/29-eth0_g0_21781-21grep11:05:160
121750390irq/29-eth0_g0_2051-21lldpd08:20:270
121750390irq/29-eth0_g0_13061-21ethtool09:25:090
121750390irq/29-eth0_g0_13061-21ethtool09:25:090
121750390irq/29-eth0_g0_1273-21taskset10:15:140
2234999382cyclictest697-21df_inode08:55:081
2234999381cyclictest7156-21grep07:50:201
2234999381cyclictest203352sleep111:01:221
2234999381cyclictest203352sleep111:01:221
121850380irq/30-eth0_g0_657-21ntp_offset07:35:161
121850380irq/30-eth0_g0_121ksoftirqd/112:15:051
121750380irq/29-eth0_g0_31ksoftirqd/008:36:250
121750380irq/29-eth0_g0_27829-21taskset10:00:211
121750380irq/29-eth0_g0_0-21swapper/008:28:060
117450380irq/72-mmc0233902sleep107:10:561
121850370irq/30-eth0_g0_13-21kworker/0:109:54:590
121750360irq/29-eth0_g0_32751-21cpu07:35:080
121750350irq/29-eth0_g0_8448-21runrttasks07:54:590
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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