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2026-05-21 - 00:23

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #8, slot #6

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 highest latencies:
System rack8slot6s.osadl.org (updated Wed May 20, 2026 12:43:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
19905991818,0cyclictest65850irq/126-lan10:07:101
19905991818,0cyclictest65850irq/126-lan09:13:041
19905991817,1cyclictest65850irq/126-lan11:45:101
19905991817,1cyclictest65850irq/126-lan07:50:131
19905991817,1cyclictest65850irq/126-lan07:45:001
19905991817,1cyclictest65850irq/126-lan07:20:171
19905991717,0cyclictest65850irq/126-lan11:42:101
19905991717,0cyclictest65850irq/126-lan10:35:101
19905991717,0cyclictest65850irq/126-lan10:15:461
19905991716,1cyclictest65850irq/126-lan12:10:201
19905991716,1cyclictest65850irq/126-lan08:55:211
19905991716,1cyclictest65850irq/126-lan08:15:141
19905991716,1cyclictest65850irq/126-lan08:00:311
19905991716,1cyclictest65850irq/126-lan07:45:171
19905991616,0cyclictest65850irq/126-lan12:20:111
19905991616,0cyclictest65850irq/126-lan11:20:111
19905991616,0cyclictest65850irq/126-lan11:20:111
19905991616,0cyclictest65850irq/126-lan08:20:141
19905991615,1cyclictest65850irq/126-lan10:57:171
19905991615,1cyclictest65850irq/126-lan10:10:111
19905991615,1cyclictest65850irq/126-lan09:35:131
19905991615,1cyclictest65850irq/126-lan09:30:111
19905991615,1cyclictest65850irq/126-lan09:15:171
19905991615,1cyclictest65850irq/126-lan08:45:001
19905991615,1cyclictest65850irq/126-lan07:15:211
19905991515,0cyclictest65850irq/126-lan11:35:171
19905991515,0cyclictest65850irq/126-lan11:30:161
19905991515,0cyclictest65850irq/126-lan09:25:021
19905991515,0cyclictest65850irq/126-lan09:00:181
19905991515,0cyclictest65850irq/126-lan08:25:101
19905991514,1cyclictest65850irq/126-lan12:30:141
19905991514,1cyclictest65850irq/126-lan12:15:151
19905991514,1cyclictest65850irq/126-lan11:00:181
19905991514,1cyclictest65850irq/126-lan10:20:181
19905991514,1cyclictest65850irq/126-lan10:00:121
19905991514,1cyclictest65850irq/126-lan09:40:201
19905991514,1cyclictest65850irq/126-lan09:20:101
19905991414,0cyclictest65850irq/126-lan12:04:091
19905991414,0cyclictest65850irq/126-lan10:50:141
19905991414,0cyclictest65850irq/126-lan09:58:141
19905991413,1cyclictest65850irq/126-lan12:35:201
19905991413,1cyclictest65850irq/126-lan11:54:111
19905991413,1cyclictest65850irq/126-lan11:15:131
19905991413,1cyclictest65850irq/126-lan11:05:211
19905991413,1cyclictest65850irq/126-lan10:45:121
19905991413,1cyclictest65850irq/126-lan10:40:001
19905991413,1cyclictest65850irq/126-lan08:05:121
19905991313,0cyclictest65850irq/126-lan08:10:131
19905991313,0cyclictest65850irq/126-lan07:35:161
19905991312,1cyclictest65850irq/126-lan11:57:101
19905991312,1cyclictest65850irq/126-lan11:10:181
19905991312,1cyclictest65850irq/126-lan08:30:131
19905991212,0cyclictest65850irq/126-lan12:25:181
19905991212,0cyclictest65850irq/126-lan09:50:131
19905991211,1cyclictest65850irq/126-lan09:05:121
19905991111,0cyclictest65850irq/126-lan12:05:091
19905991111,0cyclictest65850irq/126-lan10:30:111
19905991111,0cyclictest65850irq/126-lan07:55:121
19905991111,0cyclictest65850irq/126-lan07:32:441
19905991110,1cyclictest65850irq/126-lan10:25:111
19905991110,1cyclictest65850irq/126-lan09:45:101
19905991110,1cyclictest65850irq/126-lan08:50:191
19905991110,1cyclictest65850irq/126-lan08:40:171
19905991110,1cyclictest65850irq/126-lan08:35:161
19905991110,1cyclictest65850irq/126-lan07:10:161
1990599109,1cyclictest65850irq/126-lan11:25:181
199139998,1cyclictest743-21snmpd08:29:453
199139998,1cyclictest741-21lldpd07:42:193
199099998,1cyclictest743-21snmpd12:16:012
199019998,1cyclictest743-21snmpd08:33:120
199019998,1cyclictest743-21snmpd07:16:250
199139988,0cyclictest743-21snmpd07:57:023
199139988,0cyclictest741-21lldpd12:12:413
199139988,0cyclictest741-21lldpd11:34:453
199139988,0cyclictest741-21lldpd09:44:113
199139988,0cyclictest741-21lldpd08:21:163
199139987,1cyclictest743-21snmpd12:31:443
199139987,1cyclictest743-21snmpd11:49:003
199139987,1cyclictest741-21lldpd10:34:183
199139986,2cyclictest743-21snmpd10:29:193
199139986,2cyclictest743-21snmpd10:07:333
199139986,2cyclictest743-21snmpd09:35:143
199139986,2cyclictest743-21snmpd09:18:383
199139985,3cyclictest23349-21cat11:10:143
199139984,3cyclictest22930-21ntp_states09:50:173
199099988,0cyclictest743-21snmpd08:10:332
199099988,0cyclictest741-21lldpd10:49:002
199099988,0cyclictest741-21lldpd10:24:072
199099988,0cyclictest741-21lldpd09:35:352
199099988,0cyclictest741-21lldpd08:30:442
199099987,1cyclictest743-21snmpd12:11:522
199099987,1cyclictest743-21snmpd10:18:102
199099987,1cyclictest743-21snmpd08:51:192
199099987,1cyclictest743-21snmpd07:50:082
199099987,1cyclictest2960-21gltestperf11:40:132
199099986,2cyclictest743-21snmpd11:23:542
199099986,2cyclictest743-21snmpd11:23:542
199099985,2cyclictest743-21snmpd07:20:222
199059988,0cyclictest65850irq/126-lan07:25:011
199019988,0cyclictest743-21snmpd12:24:550
199019988,0cyclictest743-21snmpd12:17:370
199019988,0cyclictest743-21snmpd12:09:490
199019988,0cyclictest743-21snmpd08:50:160
199019988,0cyclictest741-21lldpd12:11:140
199019988,0cyclictest741-21lldpd09:33:250
199019988,0cyclictest741-21lldpd07:21:470
199019987,1cyclictest743-21snmpd11:17:320
199019987,1cyclictest743-21snmpd10:32:250
199019986,2cyclictest743-21snmpd11:48:270
199019986,2cyclictest743-21snmpd11:36:490
199019986,2cyclictest743-21snmpd11:12:050
199019986,2cyclictest743-21snmpd09:16:200
199019986,2cyclictest743-21snmpd08:24:240
199019986,2cyclictest743-21snmpd07:43:410
199019986,2cyclictest32696-21cat10:15:130
199019985,3cyclictest743-21snmpd11:29:300
199139977,0cyclictest743-21snmpd11:38:183
199139977,0cyclictest743-21snmpd11:08:453
199139977,0cyclictest741-21lldpd11:57:513
199139977,0cyclictest741-21lldpd09:23:273
199139977,0cyclictest741-21lldpd09:12:073
199139977,0cyclictest741-21lldpd09:00:053
199139977,0cyclictest741-21lldpd08:55:233
199139977,0cyclictest741-21lldpd08:16:003
199139977,0cyclictest741-21lldpd08:11:003
199139977,0cyclictest741-21lldpd07:30:193
199139976,1cyclictest743-21snmpd10:36:203
199139976,1cyclictest743-21snmpd09:32:563
199139976,1cyclictest743-21snmpd08:02:323
199139976,1cyclictest741-21lldpd07:14:223
199139975,2cyclictest743-21snmpd11:03:503
199139975,2cyclictest743-21snmpd08:54:253
199099977,0cyclictest743-21snmpd10:30:312
199099977,0cyclictest743-21snmpd08:59:492
199099977,0cyclictest743-21snmpd07:46:172
199099977,0cyclictest741-21lldpd09:41:092
199099977,0cyclictest741-21lldpd09:19:492
199099977,0cyclictest741-21lldpd08:00:582
199099977,0cyclictest741-21lldpd07:56:562
199099977,0cyclictest741-21lldpd07:11:472
199099976,1cyclictest741-21lldpd08:24:082
199099976,1cyclictest2112-21fschecks_count09:00:142
199099976,1cyclictest11363-21fschecks_count12:00:132
199099975,2cyclictest743-21snmpd12:37:332
199099975,2cyclictest743-21snmpd12:08:502
199099975,2cyclictest743-21snmpd11:56:282
199099975,2cyclictest743-21snmpd11:29:512
199099975,2cyclictest743-21snmpd10:40:132
199099975,2cyclictest743-21snmpd10:11:012
199099975,2cyclictest743-21snmpd09:05:102
199099975,2cyclictest743-21snmpd07:19:582
199019977,0cyclictest741-21lldpd12:25:490
199019977,0cyclictest741-21lldpd09:36:250
199019977,0cyclictest741-21lldpd08:06:320
199019977,0cyclictest741-21lldpd07:27:390
199019976,1cyclictest743-21snmpd10:28:460
199019976,1cyclictest743-21snmpd09:11:140
199019976,1cyclictest743-21snmpd08:27:030
199019976,1cyclictest743-21snmpd08:04:440
199019976,1cyclictest741-21lldpd10:24:440
199019976,1cyclictest10327-21gltestperf09:20:120
199019975,2cyclictest743-21snmpd09:49:390
199019975,2cyclictest743-21snmpd09:03:100
199019975,2cyclictest743-21snmpd07:31:180
199019974,3cyclictest743-21snmpd08:15:060
199019973,3cyclictest5979-21ntpq07:50:170
199139966,0cyclictest522-21avahi-daemon11:29:423
199139966,0cyclictest16038-21apt-key10:55:013
199139965,1cyclictest743-21snmpd09:08:533
199139965,1cyclictest741-21lldpd12:29:343
199139965,1cyclictest573-21in:imuxsock10:47:153
199139965,1cyclictest17305-21nvmesmart_nvme010:55:173
199139964,2cyclictest743-21snmpd11:22:313
199139964,2cyclictest743-21snmpd11:22:303
199139964,2cyclictest743-21snmpd10:24:203
199139964,2cyclictest743-21snmpd10:16:433
199139964,2cyclictest743-21snmpd09:58:483
199139964,2cyclictest743-21snmpd09:29:023
199139963,3cyclictest743-21snmpd09:46:273
199139963,3cyclictest13724-21memory12:05:153
199139962,3cyclictest32097-21sed07:35:193
199139960,3cyclictest27123-21apt08:45:003
199099966,0cyclictest743-21snmpd11:45:242
199099966,0cyclictest741-21lldpd12:34:182
199099966,0cyclictest741-21lldpd10:05:192
199099965,1cyclictest6138-21cut09:10:122
199099965,1cyclictest26213-21cpuspeed_turbos10:00:112
199099964,2cyclictest743-21snmpd07:34:102
199099964,2cyclictest19255-21tail11:00:152
199099963,3cyclictest7665-21memory11:50:142
199099962,3cyclictest11996-21ld08:05:162
199019966,0cyclictest743-21snmpd11:30:180
199019966,0cyclictest743-21snmpd11:20:240
199019966,0cyclictest743-21snmpd11:20:230
199019966,0cyclictest743-21snmpd10:00:150
199019966,0cyclictest741-21lldpd10:09:440
199019966,0cyclictest741-21lldpd08:11:460
199019966,0cyclictest741-21lldpd07:14:550
199019965,1cyclictest743-21snmpd08:45:010
199019965,1cyclictest741-21lldpd09:54:250
199019965,1cyclictest522-21avahi-daemon08:38:210
199019965,1cyclictest171ktimers/009:05:120
199019964,2cyclictest743-21snmpd08:40:220
199019964,2cyclictest25809-21tr12:35:120
199019963,3cyclictest743-21snmpd11:00:050
199139955,0cyclictest522-21avahi-daemon08:05:433
199139954,1cyclictest743-21snmpd08:46:433
199139954,1cyclictest741-21lldpd12:17:173
199139954,1cyclictest7337-21fschecks_time11:50:113
199139954,1cyclictest522-21avahi-daemon08:32:513
199139953,2cyclictest743-21snmpd12:01:223
199139953,2cyclictest5599-21cat07:50:143
199139952,2cyclictest27006-21ld10:00:163
199139952,2cyclictest24588-21irqstats07:20:143
199139952,2cyclictest22402-21grep07:15:143
199139952,2cyclictest11048-21wc10:40:193
199139951,3cyclictest26275-21gpg-connect-age07:25:003
199139951,3cyclictest25273-21sed08:40:003
199099955,0cyclictest743-21snmpd09:23:202
199099955,0cyclictest743-21snmpd08:45:252
199099955,0cyclictest743-21snmpd07:40:112
199099955,0cyclictest741-21lldpd09:48:112
199099955,0cyclictest20980-21cron12:25:002
199099954,1cyclictest928-21gltestperf11:35:132
199099954,1cyclictest0-21swapper/209:30:132
199099953,2cyclictest743-21snmpd08:28:122
199099953,2cyclictest743-21snmpd07:25:462
199099953,2cyclictest14717-21ntp_kernel_err10:50:162
199099952,3cyclictest557-21NetworkManager11:14:402
199099952,2cyclictest31330-21head11:30:132
199099952,2cyclictest26238-21ntpq08:40:182
199099952,2cyclictest25118-21mailstats09:55:192
199099952,2cyclictest244-20systemd-journal09:50:182
199099952,2cyclictest17730-21awk10:55:202
199099952,2cyclictest13137-21timerandwakeup09:25:192
199099951,3cyclictest4925-21systemctl10:25:182
199099951,3cyclictest21811-21memory12:25:152
199019955,0cyclictest743-21snmpd09:58:300
199019955,0cyclictest741-21lldpd07:38:590
199019955,0cyclictest522-21avahi-daemon10:42:070
199019953,2cyclictest743-21snmpd10:45:280
199019953,2cyclictest743-21snmpd09:26:410
199019953,2cyclictest743-21snmpd08:56:280
199019952,3cyclictest557-21NetworkManager12:31:350
199019951,4cyclictest557-21NetworkManager07:55:250
199019951,3cyclictest9124-21dpkg11:55:110
199019951,3cyclictest557-21NetworkManager09:40:040
199139943,1cyclictest30239-21cpuspeed_turbos10:10:113
199139943,1cyclictest25188-21fschecks_time11:15:123
199139941,2cyclictest4175-21systemctl07:45:193
199139941,2cyclictest2983-21gltestperf11:40:133
199139941,2cyclictest19834-21cat12:20:143
199139940,3cyclictest25586-21apt-config12:35:013
199099941,2cyclictest31416-21sh07:35:132
199099941,2cyclictest23842-21latency08:35:122
199099941,2cyclictest21204-21cat11:05:142
199099940,4cyclictest8695-21ntpq10:35:142
199099940,4cyclictest25694-21ntpq11:15:162
199099940,3cyclictest16038-21ntpq08:15:162
199019943,1cyclictest8114-21fschecks_count10:35:100
199019943,1cyclictest17148-21ntpq10:55:160
199019942,2cyclictest743-21snmpd10:50:290
199019942,2cyclictest743-21snmpd10:11:310
199019942,2cyclictest11714-21memory12:00:150
199019942,0cyclictest0-21swapper/007:45:270
199019941,3cyclictest3028-21grep11:40:130
199019941,2cyclictest21356-21if_lan11:05:150
199019940,4cyclictest7870-21ntpq11:50:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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