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2026-03-21 - 08:11

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 100 highest latencies:
System rack8slot6s.osadl.org (updated Sat Mar 21, 2026 00:43:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
29313991918,1cyclictest65850irq/126-lan00:10:141
29313991818,0cyclictest65850irq/126-lan19:58:341
29313991817,1cyclictest65850irq/126-lan23:00:001
29313991817,1cyclictest65850irq/126-lan20:45:201
29313991717,0cyclictest65850irq/126-lan23:55:161
29313991717,0cyclictest65850irq/126-lan22:15:171
29313991717,0cyclictest65850irq/126-lan21:46:521
29313991717,0cyclictest65850irq/126-lan21:40:171
29313991717,0cyclictest65850irq/126-lan21:22:461
29313991717,0cyclictest65850irq/126-lan20:35:141
29313991717,0cyclictest65850irq/126-lan19:44:451
29313991716,1cyclictest65850irq/126-lan23:49:441
29313991716,1cyclictest65850irq/126-lan22:30:201
29313991716,1cyclictest65850irq/126-lan19:35:121
29313991716,1cyclictest65850irq/126-lan19:10:151
29313991616,0cyclictest65850irq/126-lan23:25:121
29313991616,0cyclictest65850irq/126-lan22:45:141
29313991616,0cyclictest65850irq/126-lan22:35:111
29313991616,0cyclictest65850irq/126-lan21:15:111
29313991616,0cyclictest65850irq/126-lan20:50:161
29313991616,0cyclictest65850irq/126-lan20:05:221
29313991616,0cyclictest65850irq/126-lan19:34:451
29313991615,1cyclictest65850irq/126-lan23:40:121
29313991615,1cyclictest65850irq/126-lan21:05:161
29313991615,1cyclictest65850irq/126-lan20:59:591
29313991615,1cyclictest65850irq/126-lan20:20:131
29313991615,1cyclictest65850irq/126-lan00:03:581
29313991515,0cyclictest65850irq/126-lan23:15:121
29313991515,0cyclictest65850irq/126-lan22:50:151
29313991515,0cyclictest65850irq/126-lan21:50:191
29313991515,0cyclictest65850irq/126-lan20:00:161
29313991515,0cyclictest65850irq/126-lan00:15:131
29313991515,0cyclictest65850irq/126-lan00:08:441
29313991514,1cyclictest65850irq/126-lan23:05:161
29313991514,1cyclictest65850irq/126-lan22:05:161
29313991514,1cyclictest65850irq/126-lan20:55:171
29313991514,1cyclictest65850irq/126-lan20:30:101
29313991514,1cyclictest65850irq/126-lan20:25:121
29313991514,1cyclictest65850irq/126-lan19:20:101
29313991414,0cyclictest65850irq/126-lan22:25:211
29313991414,0cyclictest65850irq/126-lan22:00:151
29313991414,0cyclictest65850irq/126-lan00:39:041
29313991414,0cyclictest65850irq/126-lan00:25:211
29313991413,1cyclictest65850irq/126-lan21:25:131
29313991413,1cyclictest65850irq/126-lan21:10:121
29313991413,1cyclictest65850irq/126-lan19:50:151
29313991313,0cyclictest65850irq/126-lan23:35:201
29313991313,0cyclictest65850irq/126-lan20:10:151
29313991313,0cyclictest2595-21cat23:20:141
29313991312,1cyclictest65850irq/126-lan23:10:111
29313991312,1cyclictest65850irq/126-lan21:55:111
29313991312,1cyclictest65850irq/126-lan19:45:111
29313991212,0cyclictest65850irq/126-lan22:41:441
29313991211,1cyclictest65850irq/126-lan23:32:281
29313991211,1cyclictest65850irq/126-lan20:40:171
29313991211,1cyclictest65850irq/126-lan19:25:161
29313991111,0cyclictest65850irq/126-lan21:30:191
29313991111,0cyclictest65850irq/126-lan20:15:101
29313991110,1cyclictest65850irq/126-lan22:20:131
29313991110,1cyclictest65850irq/126-lan21:35:171
2931399109,1cyclictest65850irq/126-lan23:50:181
29313991010,0cyclictest65850irq/126-lan23:01:471
29313991010,0cyclictest65850irq/126-lan00:30:131
293229998,1cyclictest743-21snmpd23:39:093
293229998,1cyclictest741-21lldpd21:00:553
293189998,1cyclictest743-21snmpd22:48:132
293189998,1cyclictest743-21snmpd21:10:462
293189998,1cyclictest743-21snmpd19:13:452
293189998,1cyclictest506-21systemd-resolve20:28:492
293189998,1cyclictest31583-21cpuspeed_turbos19:15:122
293189996,3cyclictest743-21snmpd20:05:202
293139999,0cyclictest65850irq/126-lan22:10:121
293139999,0cyclictest65850irq/126-lan00:20:121
293229988,0cyclictest743-21snmpd21:48:263
293229988,0cyclictest741-21lldpd23:12:413
293229988,0cyclictest741-21lldpd23:03:593
293229988,0cyclictest741-21lldpd00:31:123
293229987,1cyclictest743-21snmpd22:52:433
293229987,1cyclictest743-21snmpd19:48:353
293229987,1cyclictest522-21avahi-daemon20:08:393
293229987,1cyclictest28735-21fschecks_time23:05:113
293229986,2cyclictest743-21snmpd23:52:123
293229986,2cyclictest743-21snmpd20:53:133
293229986,2cyclictest743-21snmpd19:25:093
293229986,2cyclictest743-21snmpd19:10:123
293229986,2cyclictest743-21snmpd00:29:393
293229986,2cyclictest743-21snmpd00:03:483
293229986,2cyclictest31841-21cat20:35:153
293229985,3cyclictest743-21snmpd22:08:093
293189988,0cyclictest743-21snmpd22:34:182
293189988,0cyclictest743-21snmpd21:41:502
293189988,0cyclictest743-21snmpd21:05:072
293189988,0cyclictest743-21snmpd00:19:422
293189988,0cyclictest741-21lldpd22:26:302
293189988,0cyclictest741-21lldpd21:35:132
293189988,0cyclictest741-21lldpd21:17:242
293189988,0cyclictest741-21lldpd00:05:332
293189987,1cyclictest743-21snmpd23:15:072
293189987,1cyclictest743-21snmpd19:59:172
293189987,1cyclictest741-21lldpd22:58:452
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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