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2026-08-06 - 13:44

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 all highest latencies:
System rack8slot6s.osadl.org (updated Thu Aug 06, 2026 00:43:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
15175991818,0cyclictest7613-21cat20:10:151
15175991818,0cyclictest743-21snmpd22:17:291
15175991818,0cyclictest743-21snmpd19:46:511
15169991818,0cyclictest65850irq/126-lan22:55:150
15169991818,0cyclictest65850irq/126-lan19:19:130
15169991817,1cyclictest65850irq/126-lan23:25:190
15169991817,1cyclictest65850irq/126-lan23:04:000
15169991817,1cyclictest65850irq/126-lan21:50:120
15169991817,1cyclictest65850irq/126-lan20:35:000
15169991817,1cyclictest65850irq/126-lan19:25:000
15169991817,1cyclictest65850irq/126-lan00:20:140
15175991717,0cyclictest743-21snmpd22:50:461
15175991717,0cyclictest743-21snmpd00:12:421
15169991717,0cyclictest65850irq/126-lan23:30:120
15169991717,0cyclictest65850irq/126-lan19:35:120
15169991716,1cyclictest65850irq/126-lan23:50:120
15169991716,1cyclictest65850irq/126-lan23:35:210
15169991716,1cyclictest65850irq/126-lan00:30:190
15169991716,1cyclictest65850irq/126-lan00:05:160
15169991616,0cyclictest65850irq/126-lan21:10:180
15169991616,0cyclictest65850irq/126-lan19:40:190
15169991616,0cyclictest65850irq/126-lan19:30:190
15169991616,0cyclictest65850irq/126-lan00:38:490
15169991615,1cyclictest65850irq/126-lan23:55:170
15169991615,1cyclictest65850irq/126-lan19:50:190
15169991615,1cyclictest65850irq/126-lan19:15:000
15169991615,1cyclictest65850irq/126-lan00:10:120
15169991615,1cyclictest65850irq/126-lan00:03:010
15169991515,0cyclictest65850irq/126-lan23:41:410
15169991515,0cyclictest65850irq/126-lan23:20:480
15169991515,0cyclictest65850irq/126-lan22:50:150
15169991515,0cyclictest65850irq/126-lan22:31:400
15169991515,0cyclictest65850irq/126-lan20:53:080
15169991515,0cyclictest65850irq/126-lan19:55:200
15169991515,0cyclictest65850irq/126-lan00:25:120
15169991514,1cyclictest65850irq/126-lan23:10:140
15169991514,1cyclictest65850irq/126-lan23:05:170
15169991514,1cyclictest65850irq/126-lan22:35:170
15169991514,1cyclictest65850irq/126-lan22:10:150
15169991514,1cyclictest65850irq/126-lan22:05:180
15169991514,1cyclictest65850irq/126-lan21:35:110
15169991514,1cyclictest65850irq/126-lan21:25:140
15169991514,1cyclictest65850irq/126-lan21:05:150
15169991514,1cyclictest65850irq/126-lan20:45:150
15169991514,1cyclictest65850irq/126-lan20:35:130
15169991514,1cyclictest65850irq/126-lan20:15:170
15169991514,1cyclictest65850irq/126-lan20:05:200
15169991513,1cyclictest65850irq/126-lan19:25:110
15175991413,1cyclictest21054-21kworker/1:1+events21:47:351
15169991414,0cyclictest65850irq/126-lan22:45:150
15169991414,0cyclictest65850irq/126-lan22:40:190
15169991414,0cyclictest65850irq/126-lan21:55:310
15169991414,0cyclictest65850irq/126-lan21:20:150
15169991414,0cyclictest65850irq/126-lan21:15:170
15169991414,0cyclictest65850irq/126-lan20:58:030
15169991413,1cyclictest65850irq/126-lan21:45:210
15169991413,1cyclictest65850irq/126-lan20:10:130
15175991313,0cyclictest743-21snmpd19:20:301
15169991313,0cyclictest65850irq/126-lan22:20:130
15169991313,0cyclictest65850irq/126-lan21:00:190
15169991313,0cyclictest65850irq/126-lan20:25:200
15169991312,1cyclictest65850irq/126-lan21:40:210
15169991212,0cyclictest65850irq/126-lan00:15:110
15175991110,1cyclictest21054-21kworker/1:1+events22:01:001
15169991111,0cyclictest65850irq/126-lan22:15:130
15169991111,0cyclictest65850irq/126-lan22:00:120
15169991111,0cyclictest65850irq/126-lan21:30:160
15169991111,0cyclictest65850irq/126-lan20:20:200
15169991110,1cyclictest65850irq/126-lan20:40:090
1516999109,1cyclictest65850irq/126-lan23:15:160
15169991010,0cyclictest65850irq/126-lan23:45:190
15169991010,0cyclictest65850irq/126-lan22:25:140
151849998,1cyclictest743-21snmpd22:38:443
151849998,1cyclictest743-21snmpd19:51:193
151799998,1cyclictest743-21snmpd23:45:492
151799998,1cyclictest743-21snmpd19:14:032
151699999,0cyclictest65850irq/126-lan20:00:130
151849988,0cyclictest743-21snmpd19:22:303
151849988,0cyclictest741-21lldpd22:53:453
151849988,0cyclictest741-21lldpd22:10:053
151849988,0cyclictest741-21lldpd00:37:253
151849988,0cyclictest741-21lldpd00:07:113
151849987,1cyclictest743-21snmpd22:47:213
151849987,1cyclictest743-21snmpd22:07:463
151849987,1cyclictest743-21snmpd21:26:543
151849987,1cyclictest743-21snmpd20:04:193
151849987,1cyclictest522-21avahi-daemon00:10:193
151849986,2cyclictest743-21snmpd21:14:283
151849986,2cyclictest743-21snmpd20:56:403
151849986,2cyclictest743-21snmpd20:19:013
151849986,2cyclictest717-21ntpd21:36:013
151849986,2cyclictest717-21ntpd21:21:233
151849986,2cyclictest717-21ntpd21:05:103
151849986,2cyclictest717-21ntpd21:00:263
151849986,2cyclictest717-21ntpd19:47:033
151849986,2cyclictest717-21ntpd19:15:073
151799988,0cyclictest743-21snmpd23:43:222
151799988,0cyclictest743-21snmpd21:08:482
151799988,0cyclictest743-21snmpd00:31:302
151799988,0cyclictest741-21lldpd23:51:342
151799988,0cyclictest741-21lldpd21:12:302
151799988,0cyclictest741-21lldpd20:56:492
151799988,0cyclictest741-21lldpd20:20:292
151799987,1cyclictest743-21snmpd22:03:562
151799987,1cyclictest743-21snmpd00:23:232
151799987,1cyclictest741-21lldpd20:49:052
151799987,1cyclictest522-21avahi-daemon20:40:172
151799986,2cyclictest743-21snmpd19:46:062
151759988,0cyclictest743-21snmpd20:17:401
151759988,0cyclictest741-21lldpd22:32:051
151759988,0cyclictest741-21lldpd22:05:581
151759988,0cyclictest741-21lldpd20:21:591
151759987,1cyclictest743-21snmpd20:26:111
151759986,2cyclictest743-21snmpd23:11:541
151759986,2cyclictest743-21snmpd22:28:141
151849977,0cyclictest743-21snmpd23:35:023
151849977,0cyclictest743-21snmpd19:10:083
151849977,0cyclictest741-21lldpd22:40:093
151849977,0cyclictest741-21lldpd19:31:443
151849977,0cyclictest741-21lldpd19:25:203
151849976,1cyclictest743-21snmpd20:49:323
151849976,1cyclictest743-21snmpd20:29:293
151849976,1cyclictest743-21snmpd00:15:263
151849976,1cyclictest16134-21cat20:30:133
151849975,2cyclictest743-21snmpd23:25:493
151849975,2cyclictest743-21snmpd22:17:423
151849975,2cyclictest743-21snmpd21:15:153
151849975,2cyclictest743-21snmpd20:51:413
151849975,2cyclictest743-21snmpd20:05:193
151849975,2cyclictest743-21snmpd19:37:303
151849975,2cyclictest717-21ntpd23:55:373
151799977,0cyclictest743-21snmpd23:17:122
151799977,0cyclictest743-21snmpd23:12:062
151799977,0cyclictest743-21snmpd22:42:332
151799977,0cyclictest743-21snmpd22:35:592
151799977,0cyclictest743-21snmpd21:18:422
151799977,0cyclictest743-21snmpd00:05:532
151799977,0cyclictest741-21lldpd22:49:032
151799977,0cyclictest741-21lldpd22:27:132
151799977,0cyclictest741-21lldpd21:41:442
151799977,0cyclictest741-21lldpd20:15:372
151799977,0cyclictest741-21lldpd00:14:302
151799977,0cyclictest741-21lldpd00:04:262
151799976,1cyclictest743-21snmpd21:29:122
151799976,1cyclictest743-21snmpd19:59:072
151799976,1cyclictest743-21snmpd19:52:042
151799975,2cyclictest743-21snmpd23:55:192
151799975,2cyclictest743-21snmpd22:24:592
151799973,3cyclictest244-20systemd-journal19:41:372
151759977,0cyclictest743-21snmpd22:21:501
151759977,0cyclictest743-21snmpd21:16:481
151759977,0cyclictest741-21lldpd23:38:041
151759977,0cyclictest741-21lldpd23:34:201
151759977,0cyclictest741-21lldpd22:41:131
151759977,0cyclictest741-21lldpd21:25:041
151759977,0cyclictest741-21lldpd00:16:121
151759976,1cyclictest9729-21fschecks_count21:35:131
151759976,1cyclictest743-21snmpd22:11:561
151759976,1cyclictest31519-21kworker/1:0+events19:15:161
151759976,1cyclictest31519-21kworker/1:0+events19:10:161
151759976,1cyclictest21054-21kworker/1:1+events23:50:001
151759976,1cyclictest21054-21kworker/1:1+events23:44:131
151759976,1cyclictest21054-21kworker/1:1+events23:06:171
151759976,1cyclictest21054-21kworker/1:1+events22:55:161
151759976,1cyclictest21054-21kworker/1:1+events21:40:221
151759976,1cyclictest21054-21kworker/1:1+events21:10:161
151759976,1cyclictest21054-21kworker/1:1+events21:05:141
151759976,1cyclictest21054-21kworker/1:1+events20:55:221
151759976,1cyclictest21054-21kworker/1:1+events20:50:161
151759976,1cyclictest21054-21kworker/1:1+events20:45:201
151759976,1cyclictest21054-21kworker/1:1+events20:40:141
151759976,1cyclictest21054-21kworker/1:1+events20:35:141
151759976,1cyclictest21054-21kworker/1:1+events20:30:141
151759976,1cyclictest21054-21kworker/1:1+events20:05:201
151759976,1cyclictest21054-21kworker/1:1+events20:00:201
151759976,1cyclictest21054-21kworker/1:1+events19:50:181
151759976,1cyclictest21054-21kworker/1:1+events19:40:201
151759976,1cyclictest21054-21kworker/1:1+events19:35:161
151759976,1cyclictest21054-21kworker/1:1+events19:30:141
151759976,1cyclictest21054-21kworker/1:1+events00:33:441
151759976,1cyclictest21054-21kworker/1:1+events00:25:111
151759976,1cyclictest21054-21kworker/1:1+events00:09:441
151759976,1cyclictest21054-21kworker/1:1+events00:03:021
151759975,2cyclictest743-21snmpd23:48:401
151759975,1cyclictest21054-21kworker/1:1+events21:31:191
151759970,3cyclictest18414-21tr00:35:121
151849966,0cyclictest743-21snmpd20:24:503
151849966,0cyclictest741-21lldpd22:34:563
151849966,0cyclictest741-21lldpd22:24:293
151849966,0cyclictest741-21lldpd21:40:063
151849966,0cyclictest244-20systemd-journal19:59:263
151849965,1cyclictest743-21snmpd23:20:373
151849965,1cyclictest743-21snmpd21:31:133
151849965,1cyclictest743-21snmpd20:14:253
151849963,3cyclictest557-21NetworkManager22:27:423
151799966,0cyclictest743-21snmpd20:50:052
151799966,0cyclictest743-21snmpd19:23:482
151799966,0cyclictest743-21snmpd00:25:332
151799966,0cyclictest522-21avahi-daemon21:53:112
151799965,1cyclictest743-21snmpd23:20:042
151799965,1cyclictest743-21snmpd21:35:042
151799965,1cyclictest743-21snmpd21:22:362
151799965,1cyclictest743-21snmpd20:08:582
151799965,1cyclictest743-21snmpd19:25:152
151799965,1cyclictest741-21lldpd23:36:102
151799965,1cyclictest0-21swapper/222:20:002
151799964,2cyclictest743-21snmpd21:57:312
151799964,2cyclictest743-21snmpd21:01:392
151799962,4cyclictest557-21NetworkManager19:35:212
151799960,3cyclictest4917-21grep20:05:002
151759965,1cyclictest21054-21kworker/1:1+events23:55:151
151759965,1cyclictest21054-21kworker/1:1+events23:15:161
151759965,1cyclictest21054-21kworker/1:1+events23:00:181
151759965,1cyclictest21054-21kworker/1:1+events22:45:001
151759965,1cyclictest21054-21kworker/1:1+events22:38:411
151759965,1cyclictest21054-21kworker/1:1+events21:55:221
151759965,1cyclictest21054-21kworker/1:1+events21:20:161
151759965,1cyclictest21054-21kworker/1:1+events21:00:121
151759965,1cyclictest21054-21kworker/1:1+events19:55:141
151759965,1cyclictest21054-21kworker/1:1+events19:25:141
151759965,1cyclictest21054-21kworker/1:1+events00:20:001
151759965,1cyclictest15661-21cpuspeed_turbos21:50:121
151759963,3cyclictest717-21ntpd23:25:111
151759962,3cyclictest20107-21df23:20:111
151699965,1cyclictest65850irq/126-lan19:45:130
151849955,0cyclictest741-21lldpd00:00:303
151849955,0cyclictest32722-21needreboot23:50:153
151849954,1cyclictest522-21avahi-daemon23:30:513
151849954,1cyclictest522-21avahi-daemon21:57:313
151849954,1cyclictest14378-21ntpq21:45:173
151849953,2cyclictest743-21snmpd22:00:203
151849952,3cyclictest20475-21awk20:40:163
151849952,3cyclictest12173-21fw_packets23:00:133
151849952,2cyclictest575-21rs:main3
151849952,2cyclictest16851-21wc00:30:163
151849950,4cyclictest244-20systemd-journal23:41:453
151849950,4cyclictest10643-21ntpq22:55:173
151799955,0cyclictest741-21lldpd20:30:572
151799955,0cyclictest522-21avahi-daemon21:30:252
151799954,1cyclictest741-21lldpd23:26:382
151799954,1cyclictest12658-21ntpq23:00:172
151799954,1cyclictest10653-21ntpq22:55:172
151799952,3cyclictest557-21NetworkManager20:25:042
151799952,3cyclictest22784-21grep22:05:202
151799952,2cyclictest362-21uname22:30:152
151799952,2cyclictest24756-21ld23:30:162
151799952,2cyclictest23791-21sed19:30:122
151799952,2cyclictest18361-21cut19:15:202
151799950,5cyclictest13886-21apt-get23:05:112
151799950,4cyclictest19001-21ntpq00:35:172
151849943,1cyclictest0-21swapper/321:50:123
151849942,2cyclictest511ktimers/319:40:163
151849941,2cyclictest717-21ntpd00:25:153
151849941,2cyclictest16398-21wc23:10:153
151849940,4cyclictest747-21runrttasks00:20:133
151849940,4cyclictest18209-21fw_forwarded_lo23:15:123
151849940,3cyclictest30848-21/usr/sbin/munin23:45:153
151849940,3cyclictest14052-21diskstats23:05:123
151799943,1cyclictest743-21snmpd20:10:042
151799941,3cyclictest17991-21fw_conntrack20:35:132
151799941,2cyclictest23946-21cat22:10:132
151799941,2cyclictest10268-21wc00:15:122
151799940,4cyclictest14360-21ntpq21:45:182
151799940,3cyclictest7831-21apt-get22:50:112
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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