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2026-04-14 - 08:59

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 Tue Apr 14, 2026 00:43:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
13353991818,0cyclictest65850irq/126-lan21:00:141
13353991817,1cyclictest743-21snmpd22:17:001
13353991817,1cyclictest65850irq/126-lan22:10:181
13353991717,0cyclictest65850irq/126-lan22:47:251
13353991717,0cyclictest65850irq/126-lan20:56:111
13353991717,0cyclictest65850irq/126-lan20:21:581
13353991717,0cyclictest65850irq/126-lan00:10:131
13353991716,1cyclictest65850irq/126-lan19:45:171
13353991716,1cyclictest65850irq/126-lan00:00:181
13353991616,0cyclictest65850irq/126-lan21:45:151
13353991616,0cyclictest65850irq/126-lan21:35:191
13353991616,0cyclictest65850irq/126-lan21:22:261
13353991616,0cyclictest65850irq/126-lan20:35:471
13353991616,0cyclictest65850irq/126-lan19:40:121
13353991616,0cyclictest65850irq/126-lan19:20:191
13353991615,1cyclictest65850irq/126-lan23:05:191
13353991615,1cyclictest65850irq/126-lan23:00:151
13353991615,1cyclictest65850irq/126-lan22:05:121
13353991615,1cyclictest65850irq/126-lan22:04:271
13353991615,1cyclictest65850irq/126-lan20:46:571
13353991615,1cyclictest65850irq/126-lan00:05:181
13353991515,0cyclictest743-21snmpd23:52:421
13353991515,0cyclictest65850irq/126-lan23:18:571
13353991515,0cyclictest65850irq/126-lan22:40:131
13353991515,0cyclictest65850irq/126-lan22:20:571
13353991515,0cyclictest65850irq/126-lan21:30:581
13353991515,0cyclictest65850irq/126-lan21:15:131
13353991515,0cyclictest65850irq/126-lan21:06:561
13353991515,0cyclictest65850irq/126-lan20:15:141
13353991515,0cyclictest65850irq/126-lan19:10:191
13353991515,0cyclictest65850irq/126-lan00:35:181
13353991515,0cyclictest65850irq/126-lan00:20:161
13353991515,0cyclictest65850irq/126-lan00:15:111
13353991514,1cyclictest65850irq/126-lan21:55:131
13353991514,1cyclictest65850irq/126-lan20:30:141
13353991514,1cyclictest65850irq/126-lan20:09:211
13353991514,1cyclictest65850irq/126-lan20:00:171
13353991514,1cyclictest65850irq/126-lan00:32:431
13353991414,0cyclictest743-21snmpd23:35:001
13353991414,0cyclictest65850irq/126-lan22:25:001
13353991414,0cyclictest65850irq/126-lan21:10:131
13353991414,0cyclictest65850irq/126-lan19:30:541
13353991414,0cyclictest395-21cat19:55:141
13353991413,1cyclictest65850irq/126-lan23:55:131
13353991413,1cyclictest65850irq/126-lan23:35:561
13353991413,1cyclictest65850irq/126-lan23:22:161
13353991413,1cyclictest65850irq/126-lan23:10:141
13353991413,1cyclictest65850irq/126-lan21:50:101
13353991413,1cyclictest65850irq/126-lan19:15:211
13353991313,0cyclictest65850irq/126-lan22:51:411
13353991313,0cyclictest65850irq/126-lan21:40:191
13353991313,0cyclictest65850irq/126-lan20:25:201
13353991313,0cyclictest65850irq/126-lan20:10:131
13353991313,0cyclictest65850irq/126-lan19:35:151
13353991312,1cyclictest65850irq/126-lan22:55:571
13353991312,1cyclictest65850irq/126-lan21:25:191
13353991312,1cyclictest65850irq/126-lan20:40:131
13353991212,0cyclictest743-21snmpd22:38:391
13353991212,0cyclictest65850irq/126-lan00:25:151
13353991211,1cyclictest65850irq/126-lan23:40:161
13353991111,0cyclictest65850irq/126-lan23:47:371
13353991111,0cyclictest65850irq/126-lan23:25:171
13353991111,0cyclictest65850irq/126-lan20:52:031
13353991110,1cyclictest65850irq/126-lan22:30:161
13353991010,0cyclictest65850irq/126-lan19:50:191
13353991010,0cyclictest65850irq/126-lan19:27:571
133619998,1cyclictest743-21snmpd23:38:263
133619998,1cyclictest743-21snmpd20:08:353
133619998,1cyclictest741-21lldpd20:51:293
133619998,1cyclictest741-21lldpd20:41:543
133619998,1cyclictest741-21lldpd00:37:313
133619998,1cyclictest506-21systemd-resolve20:15:173
133619996,3cyclictest743-21snmpd00:22:583
133489998,1cyclictest743-21snmpd22:36:360
133489998,1cyclictest743-21snmpd00:03:420
133619988,0cyclictest743-21snmpd23:00:163
133619988,0cyclictest743-21snmpd21:32:213
133619988,0cyclictest741-21lldpd20:32:463
133619988,0cyclictest741-21lldpd00:28:243
133619987,1cyclictest743-21snmpd22:48:283
133619987,1cyclictest743-21snmpd21:38:073
133619986,2cyclictest743-21snmpd22:42:523
133619986,2cyclictest743-21snmpd21:04:083
133619986,2cyclictest743-21snmpd00:33:173
133619986,2cyclictest717-21ntpd22:10:013
133619986,2cyclictest717-21ntpd22:05:003
133619986,2cyclictest717-21ntpd21:45:213
133569988,0cyclictest743-21snmpd23:05:042
133569988,0cyclictest743-21snmpd22:31:572
133569988,0cyclictest743-21snmpd21:25:102
133569988,0cyclictest741-21lldpd23:45:522
133569988,0cyclictest741-21lldpd22:03:022
133569988,0cyclictest741-21lldpd21:48:052
133569988,0cyclictest741-21lldpd21:10:582
133569988,0cyclictest741-21lldpd00:13:412
133569987,1cyclictest743-21snmpd19:36:272
133569986,2cyclictest743-21snmpd22:36:182
133569986,2cyclictest743-21snmpd19:26:412
133569986,2cyclictest743-21snmpd19:20:172
133569986,2cyclictest743-21snmpd00:04:372
133489988,0cyclictest743-21snmpd23:56:470
133489988,0cyclictest743-21snmpd21:42:160
133489988,0cyclictest743-21snmpd19:35:540
133489988,0cyclictest741-21lldpd22:15:270
133489988,0cyclictest741-21lldpd22:00:500
133489988,0cyclictest741-21lldpd19:41:310
133489987,1cyclictest743-21snmpd21:56:460
133489987,1cyclictest743-21snmpd21:18:120
133489987,1cyclictest741-21lldpd23:25:130
133489987,1cyclictest741-21lldpd22:53:170
133489986,2cyclictest743-21snmpd23:35:270
133489986,2cyclictest743-21snmpd22:56:300
133489986,2cyclictest743-21snmpd21:11:490
133489986,2cyclictest743-21snmpd20:11:250
133489986,2cyclictest743-21snmpd20:00:420
133489986,2cyclictest743-21snmpd19:16:380
133619977,0cyclictest743-21snmpd22:54:063
133619977,0cyclictest743-21snmpd19:28:383
133619977,0cyclictest741-21lldpd21:43:103
133619977,0cyclictest741-21lldpd21:24:053
133619977,0cyclictest741-21lldpd20:38:593
133619977,0cyclictest741-21lldpd19:50:353
133619977,0cyclictest741-21lldpd00:00:483
133619976,1cyclictest743-21snmpd21:16:543
133619976,1cyclictest743-21snmpd19:22:593
133619976,1cyclictest717-21ntpd21:55:223
133619976,1cyclictest522-21avahi-daemon21:13:593
133619976,1cyclictest14522-21gltestperf23:05:143
133619975,2cyclictest743-21snmpd23:24:013
133619975,2cyclictest743-21snmpd20:48:293
133619975,2cyclictest743-21snmpd19:32:093
133619975,2cyclictest28843-21cat19:45:143
133569977,0cyclictest743-21snmpd00:09:492
133569977,0cyclictest741-21lldpd23:35:502
133569977,0cyclictest741-21lldpd23:11:592
133569977,0cyclictest741-21lldpd22:22:102
133569977,0cyclictest741-21lldpd00:32:022
133569977,0cyclictest741-21lldpd00:22:482
133569976,1cyclictest743-21snmpd23:55:292
133569976,1cyclictest743-21snmpd20:25:042
133569976,1cyclictest21944-21gltestperf19:30:142
133569975,2cyclictest743-21snmpd22:41:362
133569975,2cyclictest743-21snmpd20:53:122
133569975,2cyclictest743-21snmpd19:58:092
133569975,2cyclictest743-21snmpd19:51:342
133569972,5cyclictest557-21NetworkManager19:10:022
133489977,0cyclictest743-21snmpd20:52:320
133489977,0cyclictest743-21snmpd20:27:350
133489977,0cyclictest741-21lldpd22:41:100
133489977,0cyclictest741-21lldpd22:09:560
133489977,0cyclictest741-21lldpd21:45:480
133489977,0cyclictest741-21lldpd19:10:350
133489977,0cyclictest741-21lldpd00:19:090
133489976,1cyclictest743-21snmpd21:38:460
133489976,1cyclictest743-21snmpd21:27:280
133489976,1cyclictest743-21snmpd20:22:140
133489976,1cyclictest743-21snmpd20:15:130
133489976,1cyclictest23691-21fschecks_time22:10:130
133489975,2cyclictest743-21snmpd23:41:470
133489975,2cyclictest743-21snmpd23:08:170
133489975,2cyclictest743-21snmpd22:25:110
133489975,2cyclictest743-21snmpd19:53:100
133489975,2cyclictest25493-21cat23:30:150
133619966,0cyclictest743-21snmpd23:45:213
133619966,0cyclictest743-21snmpd21:50:253
133619966,0cyclictest741-21lldpd22:33:073
133619966,0cyclictest741-21lldpd20:25:143
133619965,1cyclictest743-21snmpd19:36:473
133619965,1cyclictest743-21snmpd19:16:243
133619965,1cyclictest741-21lldpd20:22:573
133619965,1cyclictest741-21lldpd19:55:283
133619965,1cyclictest717-21ntpd23:40:153
133619965,1cyclictest5141-21gltestperf21:25:153
133619965,1cyclictest25307-21needreboot20:55:153
133619964,2cyclictest743-21snmpd19:40:123
133619964,2cyclictest743-21snmpd00:12:243
133619964,2cyclictest717-21ntpd23:52:383
133619963,2cyclictest29293-21http22:24:593
133569966,0cyclictest743-21snmpd21:55:232
133569966,0cyclictest743-21snmpd21:31:512
133569966,0cyclictest741-21lldpd23:52:262
133569966,0cyclictest741-21lldpd22:16:112
133569966,0cyclictest741-21lldpd21:17:112
133569966,0cyclictest522-21avahi-daemon20:41:552
133569965,1cyclictest743-21snmpd23:19:502
133569965,1cyclictest743-21snmpd23:04:412
133569965,1cyclictest743-21snmpd21:54:162
133569965,1cyclictest6744-21fschecks_count20:10:112
133569965,1cyclictest4584-21cpuspeed_turbos20:05:122
133569964,2cyclictest743-21snmpd21:40:412
133569964,2cyclictest743-21snmpd21:22:122
133569964,2cyclictest743-21snmpd19:47:272
133489966,0cyclictest743-21snmpd19:46:150
133489966,0cyclictest741-21lldpd21:00:490
133489966,0cyclictest741-21lldpd20:30:280
133489966,0cyclictest741-21lldpd19:31:110
133489966,0cyclictest522-21avahi-daemon00:31:110
133489965,1cyclictest743-21snmpd21:22:360
133489965,1cyclictest743-21snmpd20:56:360
133489964,2cyclictest743-21snmpd22:20:020
133489964,2cyclictest743-21snmpd20:37:410
133489964,2cyclictest743-21snmpd20:05:040
133489964,2cyclictest743-21snmpd00:28:140
133489963,3cyclictest20364-21diskstats23:20:130
133489962,3cyclictest6992-21diskstats00:05:130
133489961,5cyclictest557-21NetworkManager23:00:340
133489961,4cyclictest425-21basename23:50:000
133619955,0cyclictest741-21lldpd00:15:303
133619955,0cyclictest522-21avahi-daemon22:56:523
133619955,0cyclictest522-21avahi-daemon20:01:413
133619953,2cyclictest743-21snmpd23:30:393
133619953,2cyclictest743-21snmpd23:13:373
133619953,2cyclictest717-21ntpd22:00:243
133619952,2cyclictest244-20systemd-journal23:55:123
133619952,2cyclictest244-20systemd-journal21:08:053
133619952,2cyclictest19487-21sed23:15:223
133619952,2cyclictest1934-21cut22:35:153
133619952,2cyclictest14745-21sed19:10:213
133619951,3cyclictest30782-21ld22:25:183
133569954,1cyclictest743-21snmpd23:21:352
133569954,1cyclictest743-21snmpd21:03:112
133569953,2cyclictest557-21NetworkManager20:15:132
133569952,3cyclictest557-21NetworkManager19:15:322
133569952,2cyclictest30293-21tr22:25:142
133569952,2cyclictest22432-21dpkg23:25:002
133569950,4cyclictest29473-21ntpq21:05:172
133569950,3cyclictest12634-21awk00:20:002
133489954,1cyclictest522-21avahi-daemon00:35:100
133489953,2cyclictest853-21tr23:50:130
133489953,2cyclictest743-21snmpd00:24:160
133489953,2cyclictest6143-21sed22:45:150
133489953,0cyclictest0-21swapper/019:21:180
133489952,2cyclictest19898-21gltestperf19:25:120
133489951,3cyclictest21387-21ntp_kernel_err20:45:160
133619941,2cyclictest7218-21nfs_client20:10:133
133619940,4cyclictest7614-21ntpq00:05:173
133619940,4cyclictest26189-21ntpq22:15:163
133619940,3cyclictest22631-21apt-get23:25:113
133569942,2cyclictest743-21snmpd20:24:292
133569942,2cyclictest5911-21cut22:45:142
133569942,2cyclictest3435-21grep20:00:182
133569942,2cyclictest244-20systemd-journal23:30:012
133569942,2cyclictest14932-21head20:30:152
133569941,3cyclictest26310-21gltestperf19:40:132
133569941,2cyclictest29507-21smartctl23:40:142
133569941,2cyclictest25175-21cut20:55:152
133569941,2cyclictest23781-21cut22:10:142
133569941,2cyclictest21668-21cut22:05:122
133569941,2cyclictest20874-21cut20:45:132
133569941,2cyclictest10350-21netstat22:55:142
133569940,4cyclictest8421-21ntpq22:50:162
133569940,4cyclictest19719-21ntpq00:35:182
133569940,4cyclictest17338-21ntpq20:35:182
133569940,3cyclictest9205-21/usr/sbin/munin21:35:122
133569940,3cyclictest15568-21grep00:25:142
133489943,1cyclictest743-21snmpd00:10:340
133489943,1cyclictest171ktimers/023:10:160
133489943,1cyclictest171ktimers/019:55:120
133489942,2cyclictest19086-21if_lan20:40:150
133489940,4cyclictest0-21swapper/021:05:160
133489940,3cyclictest7317-21/usr/sbin/munin21:30:170
133489940,3cyclictest19509-21users23:15:220
133489930,3cyclictest32223-21cut22:30:140
133489930,3cyclictest0-21swapper/021:50:090
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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