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2026-08-07 - 22:19

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #3, 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
Compare latency of primary with shadow system
Characteristics of all highest latencies:
System rack3slot6s.osadl.org (updated Fri Aug 07, 2026 12:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
17112114103,6sleep30-21swapper/307:07:033
32610211099,6sleep10-21swapper/107:05:041
1237210796,6sleep00-21swapper/007:05:590
1755210178,6sleep20-21swapper/207:07:382
134612860,0sleep20-21swapper/211:15:082
170382810,1sleep1221ktimersoftd/109:05:111
264562800,0sleep30-21swapper/312:33:243
184492250,1sleep337-21rcuc/311:20:093
256332230,1sleep1221ktimersoftd/111:26:241
258612210,1sleep30-21swapper/309:16:153
98072200,1sleep39813-21switchtime08:46:033
98072200,1sleep39813-21switchtime08:46:023
1971992017,2cyclictest20835-21kworker/u8:310:00:052
1971992017,2cyclictest18785-21kworker/u8:009:45:072
197199200,9cyclictest0-21swapper/209:28:012
197199200,18cyclictest0-21swapper/209:22:042
1971991916,2cyclictest26091-21kworker/u8:110:28:022
1971991916,2cyclictest19945-21kworker/u8:210:18:012
1970991914,3cyclictest6373-21ssh09:30:091
1971991815,2cyclictest5029-21kworker/u8:112:24:042
1971991815,2cyclictest5029-21kworker/u8:112:13:052
1971991815,2cyclictest26489-21kworker/u8:212:35:052
1971991815,2cyclictest23263-21kworker/u8:110:55:042
1971991815,2cyclictest2098-21kworker/u8:010:10:052
1971991815,2cyclictest12466-21kworker/u8:112:01:042
197099180,16cyclictest0-21swapper/111:55:131
1969991815,2cyclictest478-21kworker/u8:209:28:020
69892170,1sleep0101ktimersoftd/010:35:160
1971991714,2cyclictest5029-21kworker/u8:112:26:052
1971991714,2cyclictest26091-21kworker/u8:110:23:042
1971991714,2cyclictest21456-21kworker/u8:209:15:042
1971991713,3cyclictest2622-21kworker/u8:010:42:042
1972991611,3cyclictest25293-21munin-node3
1971991613,2cyclictest7597-21kworker/u8:009:34:042
1971991613,2cyclictest28832-21kworker/u8:109:55:042
1971991613,2cyclictest2622-21kworker/u8:010:47:042
1971991613,2cyclictest24071-21kworker/u8:012:05:042
1971991613,2cyclictest24071-21kworker/u8:012:05:042
1971991613,2cyclictest2321-21kworker/u8:107:14:052
1971991613,2cyclictest12466-21kworker/u8:111:35:042
1971991613,2cyclictest12242-21kworker/u8:011:46:042
1971991613,2cyclictest10183-21kworker/u8:107:45:042
197099161,3cyclictest2906-21munin-run12:10:011
197099161,3cyclictest2906-21munin-run12:10:001
197099161,3cyclictest25309-21ssh10:54:281
197099161,13cyclictest0-21swapper/110:15:141
197099161,13cyclictest0-21swapper/107:15:171
197099160,3cyclictest29232-21grep10:25:161
1969991613,2cyclictest20835-21kworker/u8:309:48:050
1969991613,2cyclictest14792-21kworker/u8:009:22:040
197299151,12cyclictest9952-21ssh11:44:043
197299151,12cyclictest9082-21irqstats07:25:173
1972991511,2cyclictest0-21swapper/311:33:423
197299150,13cyclictest3467-21cat07:11:023
197299150,13cyclictest0-21swapper/312:25:113
197299150,13cyclictest0-21swapper/311:15:123
1971991512,2cyclictest28845-21kworker/u8:208:58:042
1971991512,2cyclictest2622-21kworker/u8:010:35:052
1971991512,2cyclictest24071-21kworker/u8:011:58:012
1971991512,2cyclictest20835-21kworker/u8:309:53:042
1971991512,2cyclictest18367-21kworker/u8:211:52:052
1971991512,2cyclictest10183-21kworker/u8:108:18:052
1971991512,2cyclictest10183-21kworker/u8:108:01:052
197099155,8cyclictest0-21swapper/110:39:591
197099152,7cyclictest0-21swapper/108:05:011
197099152,6cyclictest0-21swapper/111:25:001
197099151,2cyclictest0-21swapper/111:05:151
197099151,12cyclictest0-21swapper/112:10:391
196999150,13cyclictest0-21swapper/012:15:140
196999150,13cyclictest0-21swapper/012:01:320
196999150,13cyclictest0-21swapper/010:46:390
197299149,3cyclictest17324-21ssh10:13:273
197299141,11cyclictest3892-21munin-node3
1972991410,2cyclictest8053-21ls10:36:043
197299140,2cyclictest0-21swapper/312:01:473
197299140,12cyclictest6044-21ssh11:06:453
197299140,12cyclictest3649-21snmpd11:46:253
197299140,12cyclictest12944-21ssh12:20:063
197299140,12cyclictest0-21swapper/311:52:463
197299140,12cyclictest0-21swapper/310:23:403
197299140,12cyclictest0-21swapper/309:40:053
1971991411,2cyclictest18662-21kworker/u8:211:28:022
1971991411,2cyclictest18001-21kworker/u8:007:55:042
1971991411,2cyclictest10183-21kworker/u8:108:20:042
1971991410,2cyclictest19848-21cat07:51:022
197199140,12cyclictest24763-21munin-node2
197099149,3cyclictest29695-21ntp_offset09:20:171
197099149,3cyclictest0-21swapper/108:25:071
197099140,3cyclictest0-21swapper/110:11:571
197099140,2cyclictest0-21swapper/112:30:381
197099140,2cyclictest0-21swapper/111:46:571
197099140,2cyclictest0-21swapper/108:05:171
197099140,12cyclictest0-21swapper/112:37:071
197099140,12cyclictest0-21swapper/110:44:011
197099140,12cyclictest0-21swapper/109:49:471
1969991410,3cyclictest26406-21df_inode10:55:130
196999140,12cyclictest28421-21aten2.4_r3power11:30:130
196999140,12cyclictest26165-21ssh10:21:480
196999140,12cyclictest0-21swapper/012:11:230
196999140,12cyclictest0-21swapper/011:46:000
196999140,12cyclictest0-21swapper/010:27:340
1972991310,2cyclictest0-21swapper/311:12:053
1972991310,2cyclictest0-21swapper/311:00:173
1972991310,2cyclictest0-21swapper/310:33:543
1972991310,2cyclictest0-21swapper/310:08:343
1972991310,2cyclictest0-21swapper/309:28:403
1972991310,2cyclictest0-21swapper/308:10:123
197299130,2cyclictest0-21swapper/309:55:053
197299130,2cyclictest0-21swapper/309:22:553
197299130,2cyclictest0-21swapper/307:55:173
197299130,12cyclictest0-21swapper/310:43:123
197299130,12cyclictest0-21swapper/310:25:133
197299130,12cyclictest0-21swapper/309:32:443
197299130,12cyclictest0-21swapper/307:15:133
1971991310,2cyclictest4624-21kworker/u8:108:51:042
1971991310,2cyclictest28845-21kworker/u8:208:49:052
1971991310,2cyclictest28845-21kworker/u8:208:49:042
1971991310,2cyclictest28753-21kworker/u8:211:01:052
1971991310,2cyclictest14792-21kworker/u8:009:11:052
1971991310,2cyclictest10183-21kworker/u8:108:11:042
1971991310,2cyclictest10183-21kworker/u8:107:30:042
1971991310,2cyclictest0-21swapper/210:30:582
1971991310,2cyclictest0-21swapper/209:05:112
1971991310,2cyclictest0-21swapper/208:25:122
1971991310,2cyclictest0-21swapper/207:15:392
197199130,2cyclictest0-21swapper/211:40:052
197199130,11cyclictest12775-21ssh11:14:232
197099139,2cyclictest10833-21diskstats07:30:141
197099138,3cyclictest0-21swapper/110:55:031
197099132,6cyclictest0-21swapper/110:09:591
197099132,6cyclictest0-21swapper/107:25:001
1970991311,1cyclictest0-21swapper/111:10:011
197099131,10cyclictest0-21swapper/112:25:191
1970991310,2cyclictest0-21swapper/111:31:061
1970991310,2cyclictest0-21swapper/110:45:561
1970991310,2cyclictest0-21swapper/110:00:571
197099130,3cyclictest18636-21sh09:41:321
197099130,2cyclictest18467-21diskmemload12:21:181
197099130,2cyclictest0-21swapper/111:36:011
197099130,2cyclictest0-21swapper/110:32:471
197099130,12cyclictest0-21swapper/111:04:011
197099130,12cyclictest0-21swapper/110:21:171
197099130,12cyclictest0-21swapper/109:59:271
197099130,12cyclictest0-21swapper/109:28:421
197099130,11cyclictest22145-21sendmail-mta09:13:081
197099130,11cyclictest0-21swapper/109:18:321
1969991310,2cyclictest7597-21kworker/u8:009:32:040
1969991310,2cyclictest0-21swapper/012:33:510
1969991310,2cyclictest0-21swapper/012:05:050
1969991310,2cyclictest0-21swapper/012:05:040
1969991310,2cyclictest0-21swapper/011:58:200
1969991310,2cyclictest0-21swapper/011:36:000
1969991310,2cyclictest0-21swapper/011:21:030
1969991310,2cyclictest0-21swapper/011:17:340
1969991310,2cyclictest0-21swapper/011:10:030
1969991310,2cyclictest0-21swapper/010:50:110
1969991310,2cyclictest0-21swapper/010:44:220
1969991310,2cyclictest0-21swapper/010:15:350
1969991310,2cyclictest0-21swapper/010:11:280
1969991310,2cyclictest0-21swapper/010:07:190
1969991310,2cyclictest0-21swapper/008:55:110
196999130,2cyclictest0-21swapper/012:35:140
196999130,2cyclictest0-21swapper/012:26:150
196999130,2cyclictest0-21swapper/011:27:000
196999130,2cyclictest0-21swapper/011:00:420
196999130,2cyclictest0-21swapper/010:00:140
196999130,2cyclictest0-21swapper/007:55:150
196999130,2cyclictest0-21swapper/007:46:030
196999130,12cyclictest0-21swapper/012:20:310
196999130,12cyclictest0-21swapper/008:30:130
196999130,12cyclictest0-21swapper/008:11:010
196999130,11cyclictest13645-21ssh09:36:300
196999130,11cyclictest0-21swapper/009:40:530
210982120,8sleep20-21swapper/211:22:012
197299129,2cyclictest0-21swapper/309:46:183
197299129,2cyclictest0-21swapper/309:35:313
197299127,3cyclictest3649-21snmpd08:03:263
197299120,3cyclictest18467-21diskmemload10:18:433
197299120,2cyclictest0-21swapper/307:30:193
197299120,11cyclictest18467-21diskmemload10:02:273
197299120,11cyclictest0-21swapper/312:39:393
197299120,11cyclictest0-21swapper/312:07:153
197299120,11cyclictest0-21swapper/312:07:153
197299120,11cyclictest0-21swapper/311:55:143
197299120,11cyclictest0-21swapper/311:35:253
197299120,11cyclictest0-21swapper/310:58:153
197299120,11cyclictest0-21swapper/310:51:213
197299120,11cyclictest0-21swapper/310:47:053
197299120,11cyclictest0-21swapper/309:50:223
197299120,11cyclictest0-21swapper/309:14:113
197299120,11cyclictest0-21swapper/308:56:023
197299120,11cyclictest0-21swapper/308:20:113
197299120,10cyclictest0-21swapper/308:05:153
197199129,2cyclictest21054-21ssh10:50:112
197199129,2cyclictest0-21swapper/211:05:182
197199120,11cyclictest0-21swapper/207:41:022
197199120,11cyclictest0-21swapper/207:28:022
197099129,2cyclictest0-21swapper/112:15:421
197099128,2cyclictest0-21swapper/108:15:161
197099127,3cyclictest0-21swapper/107:55:461
197099121,9cyclictest10207-21munin-run07:30:011
197099121,9cyclictest0-21swapper/111:15:131
197099121,9cyclictest0-21swapper/107:40:121
197099121,3cyclictest30805-21munin-node1
197099121,3cyclictest0-21swapper/112:00:071
197099121,3cyclictest0-21swapper/109:35:151
197099120,3cyclictest0-21swapper/108:30:131
197099120,2cyclictest0-21swapper/111:51:281
197099120,2cyclictest0-21swapper/109:50:531
197099120,2cyclictest0-21swapper/108:10:121
197099120,1cyclictest0-21swapper/109:00:141
197099120,1cyclictest0-21swapper/108:55:101
197099120,11cyclictest0-21swapper/111:41:181
197099120,11cyclictest0-21swapper/107:36:041
196999129,2cyclictest0-21swapper/011:05:100
196999129,2cyclictest0-21swapper/009:15:490
196999129,2cyclictest0-21swapper/007:25:010
196999120,2cyclictest0-21swapper/008:00:130
196999120,2cyclictest0-21swapper/007:35:400
196999120,2cyclictest0-21swapper/007:20:180
196999120,11cyclictest0-21swapper/011:41:430
196999120,11cyclictest0-21swapper/010:30:090
196999120,11cyclictest0-21swapper/009:55:200
196999120,11cyclictest0-21swapper/009:50:220
196999120,11cyclictest0-21swapper/009:10:430
196999120,11cyclictest0-21swapper/009:05:150
196999120,11cyclictest0-21swapper/008:40:110
196999120,10cyclictest0-21swapper/011:50:370
119642120,1sleep30-21swapper/312:18:583
299742110,7sleep20-21swapper/211:31:032
197299112,6cyclictest0-21swapper/308:16:023
197299111,6cyclictest0-21swapper/308:36:033
197299110,2cyclictest0-21swapper/309:03:153
197199118,2cyclictest0-21swapper/212:18:382
197199110,3cyclictest0-21swapper/209:43:572
197199110,10cyclictest0-21swapper/212:34:182
197199110,10cyclictest0-21swapper/209:35:052
197099111,8cyclictest8623-21apt-get08:45:121
197099111,8cyclictest8623-21apt-get08:45:111
197099111,8cyclictest0-21swapper/108:50:111
197099111,8cyclictest0-21swapper/107:45:151
197099111,3cyclictest0-21swapper/108:40:121
197099110,10cyclictest0-21swapper/108:36:471
196999118,2cyclictest0-21swapper/008:51:010
116132110,2sleep218467-21diskmemload10:07:172
197299107,2cyclictest0-21swapper/308:50:183
197299106,2cyclictest0-21swapper/307:50:133
197299105,3cyclictest12783-21tr07:35:143
197299101,6cyclictest0-21swapper/307:21:013
197199107,2cyclictest6465-21kworker/u8:007:23:042
197199106,3cyclictest6806-21cpu08:40:122
197099100,8cyclictest18557-21munin-node1
197099100,8cyclictest0-21swapper/107:10:111
196999107,2cyclictest0-21swapper/008:35:150
196999107,2cyclictest0-21swapper/008:15:010
196999107,2cyclictest0-21swapper/007:50:120
196999107,2cyclictest0-21swapper/007:15:190
196999106,3cyclictest14916-21tr09:00:130
6192290,2sleep20-21swapper/208:37:442
19729996,2cyclictest0-21swapper/307:40:153
19729994,3cyclictest667-21cpuspeed_turbos08:25:143
19729994,3cyclictest18049-21unixbench_multi09:06:003
19729990,8cyclictest0-21swapper/307:45:053
19729990,7cyclictest0-21swapper/308:31:013
19719994,3cyclictest3222-21missed_timers08:30:172
19719994,3cyclictest14887-21cpuspeed_turbos09:00:132
19719994,3cyclictest13058-21grep07:35:162
19699996,2cyclictest10183-21kworker/u8:107:42:050
19699996,2cyclictest0-21swapper/008:23:290
19699996,2cyclictest0-21swapper/008:06:050
19699990,2cyclictest0-21swapper/007:14:100
19729984,3cyclictest1-21init08:40:473
19699985,2cyclictest0-21swapper/008:29:470
19699980,7cyclictest0-21swapper/008:45:590
19699980,7cyclictest0-21swapper/008:45:590
19699980,2cyclictest0-21swapper/007:31:040
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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