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2026-07-15 - 20:11

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 376 highest latencies:
System rack8slot6s.osadl.org (updated Wed Jul 15, 2026 12:43:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
17446991918,1cyclictest65850irq/126-lan11:25:110
17446991918,1cyclictest65850irq/126-lan09:20:000
17446991918,1cyclictest65850irq/126-lan07:15:130
17446991818,0cyclictest65850irq/126-lan08:15:390
17446991817,1cyclictest65850irq/126-lan12:25:130
17446991817,1cyclictest65850irq/126-lan08:23:360
17446991817,1cyclictest65850irq/126-lan07:46:580
17446991816,2cyclictest65850irq/126-lan11:30:200
17446991816,2cyclictest65850irq/126-lan08:40:210
17446991717,0cyclictest65850irq/126-lan11:39:110
17446991717,0cyclictest65850irq/126-lan10:18:560
17446991717,0cyclictest65850irq/126-lan09:05:220
17446991717,0cyclictest65850irq/126-lan08:25:120
17446991716,1cyclictest65850irq/126-lan12:10:210
17446991716,1cyclictest65850irq/126-lan12:00:140
17446991716,1cyclictest65850irq/126-lan10:55:160
17446991716,1cyclictest65850irq/126-lan09:45:130
17446991716,1cyclictest65850irq/126-lan08:05:200
17446991715,2cyclictest65850irq/126-lan10:30:120
17446991715,2cyclictest65850irq/126-lan10:20:140
17446991616,0cyclictest65850irq/126-lan12:30:150
17446991616,0cyclictest65850irq/126-lan10:47:460
17446991616,0cyclictest65850irq/126-lan10:10:010
17446991616,0cyclictest65850irq/126-lan08:50:170
17446991616,0cyclictest65850irq/126-lan07:20:160
17446991615,1cyclictest65850irq/126-lan12:15:210
17446991615,1cyclictest65850irq/126-lan11:55:220
17446991615,1cyclictest65850irq/126-lan10:37:520
17446991615,1cyclictest65850irq/126-lan10:25:190
17446991615,1cyclictest65850irq/126-lan10:10:200
17446991615,1cyclictest65850irq/126-lan09:30:130
17446991615,1cyclictest65850irq/126-lan09:00:200
17446991615,1cyclictest65850irq/126-lan08:31:390
17446991615,1cyclictest65850irq/126-lan08:02:390
17446991615,1cyclictest65850irq/126-lan07:35:150
17446991615,1cyclictest65850irq/126-lan07:25:170
17446991615,1cyclictest65850irq/126-lan07:10:170
17446991614,2cyclictest65850irq/126-lan11:05:150
17452991515,0cyclictest743-21snmpd11:35:192
17452991515,0cyclictest743-21snmpd10:52:172
17452991515,0cyclictest743-21snmpd09:52:522
17452991515,0cyclictest743-21snmpd09:24:452
17452991514,1cyclictest743-21snmpd07:18:322
17446991515,0cyclictest65850irq/126-lan12:37:410
17446991515,0cyclictest65850irq/126-lan10:00:130
17446991515,0cyclictest65850irq/126-lan09:42:440
17446991514,1cyclictest65850irq/126-lan10:50:180
17446991514,1cyclictest65850irq/126-lan09:59:080
17446991514,1cyclictest65850irq/126-lan09:20:230
17446991514,1cyclictest65850irq/126-lan08:55:130
17446991514,1cyclictest65850irq/126-lan08:45:120
17446991514,1cyclictest65850irq/126-lan08:35:200
17446991514,1cyclictest65850irq/126-lan07:55:140
17446991513,2cyclictest65850irq/126-lan07:50:220
17452991414,0cyclictest743-21snmpd12:32:222
17452991414,0cyclictest743-21snmpd11:11:102
17452991414,0cyclictest743-21snmpd10:19:222
17452991414,0cyclictest743-21snmpd10:12:532
17452991414,0cyclictest743-21snmpd09:06:482
17452991414,0cyclictest743-21snmpd08:13:452
17446991414,0cyclictest65850irq/126-lan11:16:170
17446991414,0cyclictest65850irq/126-lan11:01:390
17446991414,0cyclictest65850irq/126-lan10:40:140
17446991414,0cyclictest65850irq/126-lan09:10:210
17446991413,1cyclictest65850irq/126-lan11:50:110
17446991413,1cyclictest65850irq/126-lan09:25:160
17446991412,2cyclictest65850irq/126-lan11:45:140
17446991412,2cyclictest65850irq/126-lan08:10:130
17452991313,0cyclictest743-21snmpd09:58:252
17452991313,0cyclictest743-21snmpd08:19:012
17452991313,0cyclictest743-21snmpd07:37:082
17452991313,0cyclictest743-21snmpd07:20:472
17452991313,0cyclictest16876-21cat08:25:132
17446991313,0cyclictest65850irq/126-lan12:24:220
17446991313,0cyclictest65850irq/126-lan11:40:180
17446991313,0cyclictest65850irq/126-lan07:40:100
17446991312,1cyclictest65850irq/126-lan07:30:230
17446991311,2cyclictest65850irq/126-lan12:05:170
17446991311,2cyclictest65850irq/126-lan12:05:160
17446991111,0cyclictest65850irq/126-lan09:35:120
17446991110,1cyclictest65850irq/126-lan11:20:110
17452991010,0cyclictest743-21snmpd11:31:322
1744699109,1cyclictest65850irq/126-lan11:10:160
17446991010,0cyclictest65850irq/126-lan09:50:190
174609998,1cyclictest743-21snmpd07:23:383
174609998,1cyclictest741-21lldpd09:40:403
174509998,1cyclictest741-21lldpd09:01:031
174609988,0cyclictest743-21snmpd11:41:053
174609988,0cyclictest743-21snmpd10:10:263
174609988,0cyclictest743-21snmpd08:29:433
174609988,0cyclictest743-21snmpd07:13:143
174609988,0cyclictest741-21lldpd10:07:473
174609988,0cyclictest741-21lldpd08:19:353
174609987,1cyclictest743-21snmpd10:51:363
174609987,1cyclictest743-21snmpd09:25:593
174609987,1cyclictest743-21snmpd09:05:153
174609987,1cyclictest743-21snmpd08:38:293
174609987,1cyclictest743-21snmpd08:01:223
174609987,1cyclictest743-21snmpd07:31:333
174609987,1cyclictest743-21snmpd07:25:213
174609987,1cyclictest741-21lldpd11:12:153
174609987,1cyclictest741-21lldpd10:28:153
174609987,1cyclictest741-21lldpd09:36:343
174609987,1cyclictest741-21lldpd09:21:123
174609987,1cyclictest24675-21needreboot11:20:163
174609986,2cyclictest743-21snmpd12:18:363
174609986,2cyclictest743-21snmpd12:04:483
174609986,2cyclictest743-21snmpd11:38:523
174609983,5cyclictest557-21NetworkManager12:14:293
174529988,0cyclictest743-21snmpd11:57:122
174529988,0cyclictest741-21lldpd11:22:092
174529988,0cyclictest741-21lldpd09:00:592
174529988,0cyclictest741-21lldpd07:51:142
174529987,1cyclictest743-21snmpd12:05:392
174529987,1cyclictest743-21snmpd12:05:392
174529987,1cyclictest743-21snmpd10:36:062
174529987,1cyclictest743-21snmpd10:21:592
174529987,1cyclictest743-21snmpd08:47:252
174529987,1cyclictest743-21snmpd08:43:402
174529987,1cyclictest522-21avahi-daemon09:41:372
174529986,2cyclictest743-21snmpd09:32:062
174529986,2cyclictest743-21snmpd09:16:142
174529986,2cyclictest743-21snmpd07:13:402
174509988,0cyclictest743-21snmpd12:20:141
174509988,0cyclictest743-21snmpd11:44:501
174509988,0cyclictest743-21snmpd10:37:381
174509988,0cyclictest743-21snmpd10:25:201
174509988,0cyclictest743-21snmpd07:31:541
174509988,0cyclictest741-21lldpd09:49:411
174509987,1cyclictest741-21lldpd08:31:201
174509986,2cyclictest743-21snmpd12:10:451
174509986,2cyclictest743-21snmpd12:03:421
174509986,2cyclictest743-21snmpd08:01:431
174509986,2cyclictest4333-21cat07:55:151
174609977,0cyclictest743-21snmpd12:21:523
174609977,0cyclictest743-21snmpd10:56:043
174609977,0cyclictest743-21snmpd09:48:273
174609977,0cyclictest743-21snmpd09:16:173
174609977,0cyclictest741-21lldpd11:51:233
174609977,0cyclictest741-21lldpd11:02:363
174609977,0cyclictest741-21lldpd08:14:423
174609977,0cyclictest741-21lldpd07:59:023
174609976,1cyclictest743-21snmpd07:53:063
174609976,1cyclictest741-21lldpd11:27:563
174609976,1cyclictest741-21lldpd10:02:493
174609976,1cyclictest30513-21gltestperf10:15:143
174609975,2cyclictest743-21snmpd12:27:193
174609975,2cyclictest743-21snmpd10:44:573
174609973,3cyclictest244-20systemd-journal10:20:123
174529977,0cyclictest743-21snmpd07:59:422
174529977,0cyclictest741-21lldpd11:15:532
174529977,0cyclictest741-21lldpd10:43:012
174529976,1cyclictest743-21snmpd11:50:312
174529976,1cyclictest743-21snmpd10:30:202
174529976,1cyclictest743-21snmpd09:12:202
174529976,1cyclictest17944-21kworker/2:1+events08:35:182
174529975,2cyclictest743-21snmpd09:36:522
174529975,2cyclictest10337-21cat10:45:142
174529974,3cyclictest24543-21ntp_states10:00:172
174509977,0cyclictest743-21snmpd11:10:581
174509977,0cyclictest743-21snmpd09:05:271
174509977,0cyclictest741-21lldpd11:05:581
174509977,0cyclictest741-21lldpd09:58:381
174509977,0cyclictest741-21lldpd09:27:041
174509977,0cyclictest741-21lldpd09:17:331
174509977,0cyclictest741-21lldpd08:58:261
174509977,0cyclictest741-21lldpd08:11:521
174509976,1cyclictest743-21snmpd10:41:061
174509975,2cyclictest743-21snmpd11:26:261
174509975,2cyclictest743-21snmpd08:23:551
174509975,2cyclictest743-21snmpd07:42:051
174509973,3cyclictest8250-21grep08:05:151
174609966,0cyclictest743-21snmpd08:45:263
174609966,0cyclictest743-21snmpd08:20:163
174609966,0cyclictest741-21lldpd12:36:583
174609966,0cyclictest522-21avahi-daemon09:10:063
174609964,2cyclictest743-21snmpd11:55:423
174609963,2cyclictest6633-21awk10:35:183
174609962,3cyclictest20381-21ntpq07:15:173
174529965,1cyclictest28633-21cpuspeed_turbos08:55:122
174529965,1cyclictest17944-21kworker/2:1+events11:45:182
174529965,1cyclictest17944-21kworker/2:1+events11:00:142
174529965,1cyclictest17944-21kworker/2:1+events10:05:162
174529965,1cyclictest17944-21kworker/2:1+events08:00:222
174529964,2cyclictest743-21snmpd09:47:212
174509966,0cyclictest743-21snmpd09:51:491
174509966,0cyclictest743-21snmpd09:31:181
174509966,0cyclictest741-21lldpd12:06:341
174509966,0cyclictest741-21lldpd12:06:331
174509966,0cyclictest741-21lldpd10:49:291
174509966,0cyclictest741-21lldpd08:53:591
174509966,0cyclictest741-21lldpd08:26:281
174509966,0cyclictest522-21avahi-daemon11:18:551
174509966,0cyclictest12267-21cut10:50:141
174509965,1cyclictest743-21snmpd07:16:411
174509965,1cyclictest741-21lldpd11:36:251
174509965,1cyclictest522-21avahi-daemon12:34:461
174509965,1cyclictest2246-21cpuspeed_turbos11:45:131
174509964,2cyclictest743-21snmpd10:20:051
174509964,2cyclictest743-21snmpd09:10:481
174509962,3cyclictest23765-21sed08:40:201
174609955,0cyclictest743-21snmpd08:43:073
174609955,0cyclictest741-21lldpd12:05:303
174609955,0cyclictest741-21lldpd12:05:293
174609955,0cyclictest0-21swapper/311:17:513
174609953,2cyclictest743-21snmpd12:34:373
174609953,2cyclictest10614-21ntpq10:45:153
174609952,3cyclictest557-21NetworkManager09:30:343
174609952,2cyclictest30913-21grep09:00:123
174609952,2cyclictest244-20systemd-journal07:46:243
174609952,2cyclictest18814-21grep08:30:123
174609951,3cyclictest4127-21grep10:30:103
174609951,3cyclictest28872-21sed11:30:163
174609950,4cyclictest31111-21ntp_states07:40:173
174609950,4cyclictest28482-21ntpq07:35:173
174529955,0cyclictest741-21lldpd07:27:232
174529954,1cyclictest9637-21cpuspeed_turbos09:25:122
174529954,1cyclictest30331-21cpuspeed_turbos07:40:112
174529954,1cyclictest18397-21cpuspeed_turbos12:25:132
174529954,1cyclictest17944-21kworker/2:1+events12:35:172
174529954,1cyclictest17944-21kworker/2:1+events12:10:102
174529954,1cyclictest17944-21kworker/2:1+events08:05:182
174529954,1cyclictest14338-21cpuspeed_turbos12:15:132
174529953,2cyclictest717-21ntpd11:26:322
174529953,2cyclictest15590-21sshd10:59:062
174529952,3cyclictest743-21snmpd08:20:012
174529952,2cyclictest8656-21cat12:00:152
174529952,2cyclictest815-21pmu-power07:45:182
174529952,2cyclictest1556-21seq11:40:462
174529952,1cyclictest0-21swapper/210:25:152
174509955,0cyclictest743-21snmpd12:18:091
174509955,0cyclictest522-21avahi-daemon11:24:241
174509954,1cyclictest743-21snmpd07:28:351
174509954,1cyclictest522-21avahi-daemon12:35:271
174509954,1cyclictest522-21avahi-daemon08:37:121
174509954,1cyclictest28236-21cpuspeed_turbos10:10:121
174509953,2cyclictest743-21snmpd07:20:021
174509952,3cyclictest24535-21apt08:45:121
174509952,2cyclictest6519-21grep11:55:141
174509952,2cyclictest5105-21sed11:50:171
174509951,4cyclictest557-21NetworkManager11:01:561
174509950,4cyclictest26484-21ntpq10:05:181
174509950,4cyclictest16452-21ntpq09:40:181
174509950,4cyclictest13132-21ntpq08:15:181
174609944,0cyclictest741-21lldpd08:55:043
174609943,1cyclictest522-21avahi-daemon08:05:053
174609941,3cyclictest557-21NetworkManager11:47:493
174609941,3cyclictest18638-21tail11:05:183
174609941,2cyclictest22293-21needreboot09:55:153
174609940,3cyclictest19829-21diskstats09:50:143
174529943,1cyclictest17944-21kworker/2:1+events08:30:122
174529942,2cyclictest18555-21ls11:05:172
174529941,2cyclictest27060-21sed08:50:182
174529941,2cyclictest25815-21cpuspeed_turbos07:30:142
174529940,3cyclictest16590-21perl12:20:122
174509944,0cyclictest0-21swapper/112:25:141
174509943,1cyclictest557-21NetworkManager07:45:081
174509943,1cyclictest14201-21cut10:55:151
174509942,2cyclictest743-21snmpd11:31:471
174509942,2cyclictest7416-21cut09:20:151
174509942,2cyclictest14465-21nvmesmart_nvme009:35:191
174509941,3cyclictest557-21NetworkManager07:50:081
174509941,2cyclictest27929-21fschecks_count07:35:131
174509940,4cyclictest3931-21cut10:30:101
174509940,3cyclictest23876-21/usr/sbin/munin10:00:121
174509940,3cyclictest18364-21ntpq07:10:151
174509930,3cyclictest30225-21grep10:15:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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