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2026-07-21 - 07:16

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 Jul 21, 2026 00:43:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1611991918,1cyclictest65850irq/126-lan00:15:120
1611991818,0cyclictest65850irq/126-lan22:15:190
1611991817,1cyclictest65850irq/126-lan23:05:170
1611991817,1cyclictest65850irq/126-lan21:40:150
1611991817,1cyclictest65850irq/126-lan20:25:120
1611991817,1cyclictest65850irq/126-lan19:25:210
1617991717,0cyclictest743-21snmpd21:15:362
1611991717,0cyclictest65850irq/126-lan21:15:150
1611991717,0cyclictest65850irq/126-lan21:05:140
1611991717,0cyclictest65850irq/126-lan20:38:160
1611991716,1cyclictest65850irq/126-lan23:00:180
1611991716,1cyclictest65850irq/126-lan22:30:140
1611991716,1cyclictest65850irq/126-lan20:50:140
1611991716,1cyclictest65850irq/126-lan20:30:140
1611991716,1cyclictest65850irq/126-lan19:55:110
1611991716,1cyclictest65850irq/126-lan19:50:170
1611991716,1cyclictest65850irq/126-lan00:05:150
1611991716,1cyclictest65850irq/126-lan00:00:150
1617991616,0cyclictest743-21snmpd21:14:472
1611991616,0cyclictest65850irq/126-lan23:13:150
1611991616,0cyclictest65850irq/126-lan22:20:220
1611991616,0cyclictest65850irq/126-lan19:39:260
1611991616,0cyclictest65850irq/126-lan19:15:170
1611991616,0cyclictest65850irq/126-lan19:10:190
1611991616,0cyclictest65850irq/126-lan00:34:130
1611991615,1cyclictest65850irq/126-lan23:55:120
1611991615,1cyclictest65850irq/126-lan22:40:160
1611991615,1cyclictest65850irq/126-lan22:35:140
1611991615,1cyclictest65850irq/126-lan22:25:120
1611991615,1cyclictest65850irq/126-lan21:55:150
1611991615,1cyclictest65850irq/126-lan20:10:140
1611991615,1cyclictest65850irq/126-lan20:05:130
1611991615,1cyclictest65850irq/126-lan00:35:180
1617991515,0cyclictest4472-21cat21:55:152
1611991515,0cyclictest65850irq/126-lan23:35:140
1611991515,0cyclictest65850irq/126-lan21:10:200
1611991515,0cyclictest65850irq/126-lan20:45:200
1611991515,0cyclictest65850irq/126-lan19:45:010
1611991515,0cyclictest65850irq/126-lan19:20:420
1611991514,1cyclictest65850irq/126-lan22:49:140
1611991514,1cyclictest65850irq/126-lan22:05:160
1611991514,1cyclictest65850irq/126-lan22:00:180
1611991514,1cyclictest65850irq/126-lan19:30:140
1611991514,1cyclictest65850irq/126-lan00:10:170
1611991513,1cyclictest65850irq/126-lan00:20:150
1617991414,0cyclictest743-21snmpd23:13:502
1617991414,0cyclictest743-21snmpd22:36:562
1617991414,0cyclictest743-21snmpd20:26:352
1617991414,0cyclictest743-21snmpd19:19:442
1617991414,0cyclictest743-21snmpd00:33:112
1617991414,0cyclictest24453-21cat20:05:152
1617991414,0cyclictest1169-21cat00:25:152
1611991413,1cyclictest65850irq/126-lan23:45:190
1611991413,1cyclictest65850irq/126-lan23:40:130
1611991413,1cyclictest65850irq/126-lan20:20:120
1611991413,1cyclictest65850irq/126-lan20:18:060
1617991313,0cyclictest743-21snmpd23:38:252
1617991313,0cyclictest743-21snmpd23:20:582
1617991313,0cyclictest743-21snmpd22:23:562
1617991313,0cyclictest743-21snmpd21:36:332
1617991313,0cyclictest743-21snmpd19:32:272
1617991313,0cyclictest31531-21cat00:20:162
1611991313,0cyclictest65850irq/126-lan23:25:160
1611991313,0cyclictest65850irq/126-lan22:55:130
1611991313,0cyclictest65850irq/126-lan20:00:110
1611991313,0cyclictest65850irq/126-lan00:25:150
1611991312,1cyclictest65850irq/126-lan21:49:430
1611991312,1cyclictest65850irq/126-lan20:40:110
1617991212,0cyclictest743-21snmpd23:56:232
1617991212,0cyclictest743-21snmpd23:28:192
1617991212,0cyclictest743-21snmpd20:51:012
1617991212,0cyclictest743-21snmpd20:39:582
1617991212,0cyclictest743-21snmpd19:54:332
1617991212,0cyclictest743-21snmpd19:45:122
1617991212,0cyclictest743-21snmpd00:17:072
1617991212,0cyclictest10996-21cat22:10:152
1617991212,0cyclictest10996-21cat22:10:152
161499128,4cyclictest743-21snmpd22:32:321
1611991212,0cyclictest65850irq/126-lan23:54:150
1611991212,0cyclictest65850irq/126-lan23:20:130
1611991212,0cyclictest65850irq/126-lan21:00:150
1611991211,1cyclictest65850irq/126-lan22:52:500
1617991111,0cyclictest743-21snmpd19:28:242
161499118,3cyclictest743-21snmpd21:41:361
161499118,3cyclictest743-21snmpd00:14:201
161499116,5cyclictest743-21snmpd20:01:221
1611991111,0cyclictest65850irq/126-lan21:31:130
1617991010,0cyclictest743-21snmpd19:10:082
161499108,2cyclictest741-21lldpd22:25:501
161499106,4cyclictest743-21snmpd21:30:541
161499106,4cyclictest743-21snmpd21:17:211
161499106,4cyclictest743-21snmpd20:20:481
161499100,4cyclictest10071perl00:25:141
161199109,1cyclictest65850irq/126-lan23:30:130
161199109,1cyclictest65850irq/126-lan21:20:190
161199109,1cyclictest65850irq/126-lan20:55:120
1611991010,0cyclictest65850irq/126-lan21:25:180
1611991010,0cyclictest65850irq/126-lan19:40:180
16219996,3cyclictest743-21snmpd21:18:453
16179999,0cyclictest743-21snmpd20:33:262
16179998,1cyclictest743-21snmpd21:54:582
16149998,1cyclictest743-21snmpd19:40:541
16149998,1cyclictest743-21snmpd19:26:361
16149997,2cyclictest741-21lldpd20:15:231
16149996,3cyclictest4848-21cat23:15:151
16149995,4cyclictest743-21snmpd19:19:411
16149995,4cyclictest743-21snmpd00:15:071
16149990,3cyclictest1414-21chrt21:45:511
16119998,1cyclictest65850irq/126-lan22:10:170
16119998,1cyclictest65850irq/126-lan22:10:160
16119998,1cyclictest65850irq/126-lan21:35:130
16219988,0cyclictest741-21lldpd22:02:053
16219988,0cyclictest741-21lldpd21:11:553
16219988,0cyclictest741-21lldpd00:17:233
16219987,1cyclictest743-21snmpd22:17:023
16219987,1cyclictest743-21snmpd21:05:233
16219987,1cyclictest743-21snmpd21:04:573
16219987,1cyclictest743-21snmpd20:16:583
16219987,1cyclictest743-21snmpd00:21:093
16219987,1cyclictest5063-21needreboot23:15:163
16219986,2cyclictest743-21snmpd23:48:463
16219986,2cyclictest743-21snmpd22:47:123
16219986,2cyclictest743-21snmpd21:33:033
16219986,2cyclictest743-21snmpd21:26:023
16219986,2cyclictest743-21snmpd20:33:353
16219986,2cyclictest743-21snmpd20:11:493
16219986,2cyclictest743-21snmpd00:36:033
16179988,0cyclictest741-21lldpd23:05:322
16179988,0cyclictest741-21lldpd22:44:342
16179988,0cyclictest741-21lldpd21:27:572
16179988,0cyclictest741-21lldpd00:12:372
16179987,1cyclictest743-21snmpd23:41:522
16179987,1cyclictest743-21snmpd20:56:072
16179987,1cyclictest743-21snmpd20:10:522
16179987,1cyclictest741-21lldpd23:02:122
16179984,3cyclictest12724-21ntp_states19:35:172
16149988,0cyclictest743-21snmpd21:59:041
16149987,1cyclictest743-21snmpd23:37:071
16149987,1cyclictest522-21avahi-daemon00:20:241
16149986,2cyclictest743-21snmpd21:25:141
16149986,2cyclictest743-21snmpd21:10:291
16149982,3cyclictest27800-21sed22:50:201
16149982,2cyclictest14752-21grep23:40:121
16149981,3cyclictest9513-21sed20:45:211
16149981,3cyclictest7370-21sed22:00:211
16149980,4cyclictest6616-21ntpq19:20:161
16219977,0cyclictest743-21snmpd23:25:513
16219977,0cyclictest743-21snmpd20:36:043
16219977,0cyclictest743-21snmpd19:57:553
16219977,0cyclictest741-21lldpd00:34:173
16219976,1cyclictest743-21snmpd23:06:153
16219976,1cyclictest743-21snmpd20:22:483
16219976,1cyclictest743-21snmpd00:06:473
16219976,1cyclictest28797-21cron00:15:003
16219975,2cyclictest743-21snmpd23:57:353
16219975,2cyclictest743-21snmpd23:31:163
16219975,2cyclictest743-21snmpd21:40:543
16219975,2cyclictest743-21snmpd19:36:053
16219975,2cyclictest743-21snmpd19:14:413
16219973,3cyclictest19814-21ntp_states23:50:193
16179977,0cyclictest743-21snmpd22:05:312
16179977,0cyclictest743-21snmpd20:40:552
16179977,0cyclictest741-21lldpd22:50:132
16179976,1cyclictest743-21snmpd22:16:112
16179975,2cyclictest743-21snmpd23:46:252
16179975,2cyclictest743-21snmpd20:20:242
16179973,3cyclictest30690-21fw_packets21:40:142
16149977,0cyclictest741-21lldpd23:01:501
16149977,0cyclictest741-21lldpd22:23:191
16149977,0cyclictest741-21lldpd20:32:211
16149975,2cyclictest743-21snmpd19:51:171
16149975,2cyclictest522-21avahi-daemon22:10:121
16149975,2cyclictest522-21avahi-daemon22:10:111
16149975,2cyclictest24006-21apt-get20:05:121
16149975,2cyclictest10298-21cat19:30:151
16149973,4cyclictest2461-21cpuspeed_turbos23:10:121
16149972,5cyclictest557-21NetworkManager20:25:111
16149972,5cyclictest10436-21cups-browsed00:00:061
16149972,2cyclictest743-21snmpd20:38:411
16149972,2cyclictest6690-21sed20:40:131
16149972,2cyclictest557-21NetworkManager22:57:231
16149972,2cyclictest23634-21grep21:20:231
16149971,3cyclictest16231-21fw_forwarded_lo19:45:141
16149971,2cyclictest3218-21cut00:30:141
16149970,4cyclictest4748-21apt00:35:121
16149970,4cyclictest16976-21ntpq21:05:171
16149970,3cyclictest9248-21ntpq23:25:181
16149970,3cyclictest29083-21/usr/sbin/munin21:35:171
16149970,3cyclictest2868-21ntpq21:50:191
16149970,3cyclictest26048-21users22:45:221
16149970,3cyclictest25587-21load00:05:141
16149970,3cyclictest23694-21sendmail_mailst22:40:191
16149970,3cyclictest21233-21/usr/sbin/munin23:55:121
16149970,3cyclictest1950-21df19:10:121
16149970,3cyclictest18670-21apt-config23:50:001
16149970,3cyclictest14249-21taskset21:00:111
16149970,3cyclictest13530-21seq19:38:501
16149970,3cyclictest13097-21/usr/sbin/munin22:15:151
16149970,3cyclictest12503-21perl20:55:131
16149970,3cyclictest11129-21grep20:50:201
16149970,2cyclictest18365-21cat23:49:591
16219966,0cyclictest743-21snmpd22:32:563
16219966,0cyclictest522-21avahi-daemon22:43:073
16219966,0cyclictest244-20systemd-journal23:42:503
16219965,1cyclictest8619-21cpuspeed_turbos22:05:113
16219965,1cyclictest743-21snmpd19:41:183
16219965,1cyclictest573-21in:imuxsock20:40:023
16219965,1cyclictest522-21avahi-daemon20:05:013
16219965,1cyclictest522-21avahi-daemon00:25:243
16219965,1cyclictest23100-21cpuspeed_turbos00:00:113
16219965,1cyclictest16382-21cat19:45:143
16219965,1cyclictest0-21swapper/322:30:013
16219964,2cyclictest743-21snmpd23:36:553
16219964,2cyclictest743-21snmpd23:00:333
16219964,2cyclictest743-21snmpd22:20:043
16219962,3cyclictest32625-21tune2fs21:45:133
16219962,3cyclictest244-20systemd-journal21:58:533
16179966,0cyclictest743-21snmpd22:28:552
16179966,0cyclictest743-21snmpd22:00:402
16179966,0cyclictest743-21snmpd20:01:132
16179966,0cyclictest741-21lldpd23:32:222
16179966,0cyclictest741-21lldpd22:31:252
16179966,0cyclictest741-21lldpd00:36:492
16179965,1cyclictest743-21snmpd23:53:382
16179965,1cyclictest743-21snmpd21:09:482
16179965,1cyclictest743-21snmpd21:03:292
16179964,2cyclictest743-21snmpd21:22:032
16149961,2cyclictest26669-21expr20:10:141
16149960,3cyclictest8522-21/usr/sbin/munin22:05:131
16149960,3cyclictest10784-21grep23:30:131
16149960,2cyclictest6709-21fschecks_time23:20:141
16149960,2cyclictest628-21fschecks_time23:05:151
16149960,2cyclictest20915-21/usr/sbin/munin22:35:131
16149960,2cyclictest19956-21apt19:55:121
16219955,0cyclictest741-21lldpd22:13:073
16219955,0cyclictest741-21lldpd22:13:063
16219953,2cyclictest743-21snmpd20:51:343
16219953,2cyclictest743-21snmpd20:47:413
16219953,2cyclictest743-21snmpd19:20:083
16219953,2cyclictest18327-21grep19:50:153
16219952,3cyclictest20940-21fw_conntrack22:35:133
16219952,2cyclictest575-21rs:main3
16219952,2cyclictest27242-21sed22:50:153
16219952,2cyclictest22707-21hddtemp_smartct21:20:153
16219951,3cyclictest7734-21awk23:20:213
16219951,3cyclictest28525-21diskstats21:35:143
16219951,3cyclictest22829-21ntpq20:00:173
16219950,4cyclictest8566-21ntpq19:25:193
16179955,0cyclictest741-21lldpd23:15:042
16179954,1cyclictest25110-21cpuspeed_turbos00:05:112
16179953,2cyclictest743-21snmpd21:46:522
16179953,2cyclictest717-21ntpd20:47:562
16179953,2cyclictest717-21ntpd19:56:432
16179953,2cyclictest6104-21tune2fs19:20:132
16179952,3cyclictest28456-21cat20:15:162
16179952,2cyclictest30039-21grep22:55:232
16179952,2cyclictest27351-21find21:30:192
16179952,2cyclictest244-20systemd-journal22:47:102
16179952,2cyclictest23326-21grep00:00:132
16179951,3cyclictest14490-21wc19:40:162
16119955,0cyclictest65850irq/126-lan21:50:200
16119952,2cyclictest4630-21grep23:15:130
16219942,2cyclictest743-21snmpd19:30:053
16219942,2cyclictest506-21systemd-resolve23:12:543
16219942,2cyclictest32127-21awk20:25:123
16219941,2cyclictest29271-21cat22:55:163
16219941,2cyclictest12791-21sed20:55:173
16219940,4cyclictest4637-21ntpq19:15:193
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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