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2026-04-07 - 06:54

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 Tue Apr 07, 2026 00:43:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
19252991919,0cyclictest65850irq/126-lan21:35:073
19252991918,1cyclictest65850irq/126-lan22:45:203
19252991818,0cyclictest65850irq/126-lan21:10:173
19252991818,0cyclictest65850irq/126-lan20:25:133
19252991817,1cyclictest65850irq/126-lan00:20:173
19252991817,1cyclictest65850irq/126-lan00:05:213
19252991816,1cyclictest65850irq/126-lan00:10:183
19252991717,0cyclictest65850irq/126-lan23:10:173
19252991717,0cyclictest65850irq/126-lan22:01:463
19252991717,0cyclictest65850irq/126-lan21:42:183
19252991717,0cyclictest65850irq/126-lan20:10:153
19252991716,1cyclictest65850irq/126-lan23:20:153
19252991716,1cyclictest65850irq/126-lan21:25:203
19252991716,1cyclictest65850irq/126-lan21:05:223
19252991716,1cyclictest65850irq/126-lan00:35:143
19252991616,0cyclictest65850irq/126-lan20:50:113
19252991616,0cyclictest65850irq/126-lan19:38:263
19252991615,1cyclictest65850irq/126-lan23:45:123
19252991615,1cyclictest65850irq/126-lan23:29:583
19252991615,1cyclictest65850irq/126-lan21:30:133
19252991615,1cyclictest65850irq/126-lan20:55:163
19252991615,1cyclictest65850irq/126-lan19:55:143
19252991515,0cyclictest65850irq/126-lan23:15:213
19252991515,0cyclictest65850irq/126-lan23:00:233
19252991515,0cyclictest65850irq/126-lan22:50:193
19252991515,0cyclictest65850irq/126-lan22:35:133
19252991515,0cyclictest65850irq/126-lan22:17:133
19252991515,0cyclictest65850irq/126-lan21:45:113
19252991515,0cyclictest65850irq/126-lan20:47:243
19252991515,0cyclictest65850irq/126-lan19:25:133
19252991515,0cyclictest65850irq/126-lan00:00:203
19252991514,1cyclictest65850irq/126-lan22:33:263
19252991514,1cyclictest65850irq/126-lan20:15:203
19252991514,1cyclictest65850irq/126-lan19:50:123
19252991414,0cyclictest65850irq/126-lan22:26:433
19252991414,0cyclictest65850irq/126-lan22:20:143
19252991413,1cyclictest65850irq/126-lan23:55:123
19252991413,1cyclictest65850irq/126-lan21:50:163
19252991413,1cyclictest65850irq/126-lan21:00:133
19252991413,1cyclictest65850irq/126-lan21:00:133
19252991413,1cyclictest65850irq/126-lan20:05:163
19252991413,1cyclictest65850irq/126-lan19:40:123
19252991313,0cyclictest65850irq/126-lan23:40:183
19252991313,0cyclictest65850irq/126-lan22:56:463
19252991313,0cyclictest65850irq/126-lan22:40:113
19252991313,0cyclictest65850irq/126-lan20:40:173
19252991313,0cyclictest65850irq/126-lan20:30:123
19252991313,0cyclictest65850irq/126-lan00:25:163
19252991312,1cyclictest65850irq/126-lan23:05:123
19252991312,1cyclictest65850irq/126-lan22:06:223
19252991312,1cyclictest65850irq/126-lan21:55:183
19252991312,1cyclictest65850irq/126-lan21:20:173
19252991312,1cyclictest65850irq/126-lan21:15:223
19252991312,1cyclictest65850irq/126-lan20:20:123
19252991312,1cyclictest65850irq/126-lan00:30:093
19252991212,0cyclictest65850irq/126-lan19:30:153
19252991212,0cyclictest65850irq/126-lan19:20:153
19252991212,0cyclictest65850irq/126-lan00:15:113
19252991211,1cyclictest65850irq/126-lan23:35:183
19252991211,1cyclictest65850irq/126-lan19:10:133
19252991110,1cyclictest65850irq/126-lan23:30:193
19252991110,1cyclictest65850irq/126-lan19:15:113
1924699118,3cyclictest741-21lldpd23:40:191
1924699110,8cyclictest31610-21chrt19:39:111
1925299109,1cyclictest65850irq/126-lan20:00:133
1924699107,3cyclictest743-21snmpd21:26:111
1924699107,3cyclictest743-21snmpd20:55:051
1924699107,3cyclictest743-21snmpd19:46:371
1924699105,3cyclictest522-21avahi-daemon20:48:521
1924699100,8cyclictest17389-21chrt23:01:181
1924699100,7cyclictest16751-21awk21:40:161
1924699100,6cyclictest9190-21taskset20:02:281
1924699100,6cyclictest3959-21interrupts21:10:141
1924699100,6cyclictest29395-21taskset19:31:411
192529998,1cyclictest743-21snmpd19:47:193
192529993,4cyclictest4161-21apt23:50:113
192529992,5cyclictest29631-21taskset22:11:503
192529992,4cyclictest23444-21chrt20:39:133
192489998,1cyclictest743-21snmpd21:05:392
192489998,1cyclictest743-21snmpd20:22:082
192489998,1cyclictest743-21snmpd19:40:312
192469998,1cyclictest743-21snmpd22:59:351
192469998,1cyclictest743-21snmpd22:06:121
192469998,1cyclictest506-21systemd-resolve23:10:141
192469998,1cyclictest506-21systemd-resolve00:20:171
192469997,2cyclictest743-21snmpd20:17:321
192469995,4cyclictest743-21snmpd00:07:341
192469994,5cyclictest22313-21cat19:15:141
192469990,8cyclictest20286-21ntpq19:10:161
192469990,7cyclictest5544-21seq23:50:321
192469990,7cyclictest10656-21ld22:45:161
192469990,6cyclictest29882-21seq22:14:571
192469990,6cyclictest24855-21proc_pri19:20:171
192469990,6cyclictest24766-21seq00:37:551
192469990,6cyclictest19451-21seq20:29:391
192469990,6cyclictest13373-21chrt22:51:371
192469990,5cyclictest23470-21taskset23:16:491
192419998,1cyclictest743-21snmpd19:51:220
192489988,0cyclictest743-21snmpd22:24:162
192489988,0cyclictest743-21snmpd20:46:092
192489988,0cyclictest743-21snmpd00:32:112
192489988,0cyclictest741-21lldpd23:24:252
192489988,0cyclictest741-21lldpd23:15:012
192489988,0cyclictest741-21lldpd22:35:032
192489988,0cyclictest741-21lldpd19:22:392
192489987,1cyclictest743-21snmpd23:40:212
192489987,1cyclictest743-21snmpd23:00:202
192489987,1cyclictest743-21snmpd19:48:582
192489987,1cyclictest743-21snmpd00:25:322
192489987,1cyclictest741-21lldpd23:10:572
192489986,2cyclictest743-21snmpd22:51:262
192489986,2cyclictest743-21snmpd21:10:282
192469987,1cyclictest743-21snmpd21:15:101
192469987,1cyclictest743-21snmpd00:18:231
192469987,1cyclictest506-21systemd-resolve20:30:201
192469986,2cyclictest743-21snmpd23:36:091
192469986,2cyclictest743-21snmpd21:00:461
192469986,2cyclictest743-21snmpd21:00:461
192469986,2cyclictest741-21lldpd23:47:511
192469985,3cyclictest522-21avahi-daemon00:31:091
192469982,4cyclictest747-21runrttasks22:15:391
192469980,8cyclictest342-21ntp_states19:40:161
192469980,7cyclictest24414-21hddtemp_smartct23:20:121
192469980,5cyclictest8694-21taskset21:20:171
192469980,5cyclictest8310-21chrt23:59:411
192469980,5cyclictest7468-21chrt22:38:281
192469980,5cyclictest3814-21chrt22:30:121
192469980,5cyclictest25424-21chrt20:43:311
192469980,5cyclictest2530-21grep21:05:201
192469980,5cyclictest241022sleep122:00:101
192469980,5cyclictest23224-21chrt20:36:281
192469980,5cyclictest21100-21awk21:50:191
192469980,5cyclictest20698-21chrt00:27:231
192469980,5cyclictest17282-21chrt20:22:431
192469980,5cyclictest11198-21taskset20:07:231
192469980,4cyclictest22830-21ntpq21:55:171
192469980,4cyclictest0-21swapper/123:05:091
192419988,0cyclictest743-21snmpd22:57:440
192419988,0cyclictest743-21snmpd22:39:340
192419988,0cyclictest741-21lldpd23:42:530
192419988,0cyclictest741-21lldpd23:05:470
192419988,0cyclictest741-21lldpd22:47:490
192419988,0cyclictest741-21lldpd21:12:300
192419988,0cyclictest741-21lldpd19:33:220
192419987,1cyclictest743-21snmpd20:30:540
192419987,1cyclictest743-21snmpd20:13:100
192419987,1cyclictest743-21snmpd19:28:150
192419986,2cyclictest743-21snmpd23:52:490
192419986,2cyclictest743-21snmpd23:49:160
192419986,2cyclictest743-21snmpd22:20:160
192419986,2cyclictest743-21snmpd20:38:060
192419986,2cyclictest743-21snmpd19:37:150
192419986,2cyclictest18508-21cat21:45:120
192489977,0cyclictest743-21snmpd22:26:072
192489977,0cyclictest743-21snmpd19:26:032
192489977,0cyclictest741-21lldpd21:42:362
192489977,0cyclictest24947-21cron00:40:002
192489976,1cyclictest743-21snmpd21:59:482
192489976,1cyclictest743-21snmpd21:37:252
192489976,1cyclictest741-21lldpd20:42:492
192489976,1cyclictest522-21avahi-daemon22:05:152
192489976,1cyclictest4476-21head23:50:132
192489975,2cyclictest743-21snmpd23:27:512
192489975,2cyclictest743-21snmpd19:34:072
192489975,2cyclictest743-21snmpd19:10:242
192489973,3cyclictest8213-21memory20:00:152
192489973,3cyclictest14753-21ntp_states22:55:162
192469975,2cyclictest743-21snmpd23:27:211
192469973,4cyclictest244-20systemd-journal00:10:121
192469972,5cyclictest32504-21grep22:20:151
192469971,6cyclictest6274-21grep19:55:141
192469970,7cyclictest9382-21ntpq00:00:161
192469970,7cyclictest9230-21uptime22:40:201
192469970,7cyclictest12532-21ntp_states20:10:171
192469970,6cyclictest27830-21grep20:50:111
192469970,6cyclictest18156-21expr21:45:101
192469970,5cyclictest150512chrt21:35:161
192469970,4cyclictest3293-21chrt22:26:381
192469970,4cyclictest298572chrt23:30:281
192469970,4cyclictest0-21swapper/121:32:441
192469970,4cyclictest0-21swapper/119:50:191
192469970,3cyclictest26657-21ntpq19:25:161
192419977,0cyclictest743-21snmpd23:16:060
192419977,0cyclictest743-21snmpd22:11:290
192419977,0cyclictest743-21snmpd21:55:290
192419977,0cyclictest743-21snmpd21:33:440
192419977,0cyclictest743-21snmpd20:07:410
192419977,0cyclictest743-21snmpd19:16:240
192419977,0cyclictest743-21snmpd00:30:170
192419977,0cyclictest741-21lldpd23:24:430
192419977,0cyclictest741-21lldpd22:00:020
192419977,0cyclictest741-21lldpd21:35:320
192419977,0cyclictest741-21lldpd21:27:480
192419977,0cyclictest741-21lldpd20:01:370
192419977,0cyclictest741-21lldpd19:47:580
192419977,0cyclictest522-21avahi-daemon22:26:030
192419977,0cyclictest32641-21needreboot19:40:140
192419976,1cyclictest24171-21fschecks_time19:20:120
192419975,2cyclictest743-21snmpd22:43:250
192419975,2cyclictest743-21snmpd21:40:080
192419975,2cyclictest743-21snmpd20:54:540
192419974,3cyclictest743-21snmpd19:12:360
192489966,0cyclictest743-21snmpd22:17:302
192489966,0cyclictest741-21lldpd22:13:582
192489966,0cyclictest522-21avahi-daemon00:18:292
192489965,1cyclictest743-21snmpd21:02:522
192489965,1cyclictest743-21snmpd21:02:522
192489965,1cyclictest741-21lldpd00:05:552
192489965,1cyclictest30852-21grep23:35:142
192489965,1cyclictest30013-21cpuspeed_turbos19:35:112
192489962,3cyclictest19290-21sed21:45:192
192489962,3cyclictest18028-21fw_forwarded_lo20:25:122
192489962,2cyclictest11741-21cat22:50:002
192489961,5cyclictest557-21NetworkManager23:46:442
192419966,0cyclictest743-21snmpd21:54:480
192419966,0cyclictest743-21snmpd00:04:010
192419966,0cyclictest741-21lldpd20:43:480
192419966,0cyclictest522-21avahi-daemon23:33:340
192419966,0cyclictest522-21avahi-daemon21:16:510
192419966,0cyclictest522-21avahi-daemon00:27:490
192419965,1cyclictest743-21snmpd22:30:490
192419965,1cyclictest743-21snmpd22:15:450
192419965,1cyclictest743-21snmpd00:09:470
192419965,1cyclictest741-21lldpd20:24:490
192419964,2cyclictest743-21snmpd21:03:070
192419964,2cyclictest743-21snmpd21:03:070
192489955,0cyclictest741-21lldpd21:21:592
192489953,2cyclictest743-21snmpd21:51:412
192489953,2cyclictest743-21snmpd21:32:142
192489953,2cyclictest743-21snmpd20:59:162
192489953,2cyclictest743-21snmpd20:10:592
192489952,3cyclictest557-21NetworkManager21:25:152
192489952,2cyclictest743-21snmpd22:00:242
192489952,2cyclictest22320-21load20:35:142
192489952,2cyclictest20514-21ld20:30:152
192489952,2cyclictest10711-21sed00:05:002
192489951,3cyclictest14142-21irqstats20:15:142
192489950,4cyclictest8615-21ntpq22:40:142
192489950,4cyclictest6336-21ntpq21:15:182
192419955,0cyclictest741-21lldpd22:08:520
192419955,0cyclictest522-21avahi-daemon19:55:230
192419954,1cyclictest741-21lldpd00:23:140
192419954,1cyclictest573-21in:imuxsock23:02:320
192419954,1cyclictest29991-21df20:55:100
192419954,1cyclictest20687-21ntpq23:10:150
192419954,1cyclictest0-21swapper/023:25:140
192419953,2cyclictest743-21snmpd22:53:560
192419953,2cyclictest743-21snmpd20:28:580
192419951,3cyclictest2538-21sensors21:05:210
192419951,3cyclictest16401-21sed00:15:200
192419951,3cyclictest14462-21users00:10:210
192419950,5cyclictest14550-21ntpq20:15:170
192489944,0cyclictest741-21lldpd23:31:472
192489942,2cyclictest9935-21grep20:05:122
192489942,2cyclictest743-21snmpd19:17:302
192489942,2cyclictest27991-21entropy20:50:122
192489942,2cyclictest18446-21grep00:20:202
192489941,2cyclictest4477-21cut22:30:162
192489940,3cyclictest7433-21ntp_states23:55:172
192489940,3cyclictest6571-21/usr/sbin/munin19:55:172
192489940,3cyclictest3778-21diskstats19:50:112
192489940,3cyclictest18035-21/usr/sbin/munin23:05:122
192489940,3cyclictest14990-21sed00:15:002
192419942,2cyclictest7283-21apt-get21:20:010
192419941,2cyclictest6900-21grep23:55:130
192419941,2cyclictest25956-21expr20:45:130
192419940,4cyclictest31348-21ntpq23:35:180
192419940,4cyclictest23946-21ntpq00:35:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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