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2026-08-25 - 07:22

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #0, slot #8

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 376 highest latencies:
System rack0slot8s.osadl.org (updated Tue Aug 25, 2026 00:44:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
94080950,90rtkit-daemon0-21swapper/019:06:400
283491830,61ptp4l0-21swapper/119:05:101
2136627261,9sleep50-21swapper/519:07:377
2133026958,9sleep100-21swapper/1019:07:062
2143926856,10sleep110-21swapper/1119:08:443
2128426857,9sleep60-21swapper/619:06:268
2123926858,8sleep40-21swapper/419:05:496
2138126755,10sleep70-21swapper/719:07:519
236832580,0sleep80-21swapper/820:35:0110
84772490,0sleep100-21swapper/1020:55:172
61112460,0sleep70-21swapper/720:50:259
2194399250,1cyclictest0-21swapper/1020:45:162
2191699232,16cyclictest0-21swapper/420:15:006
2191699222,15cyclictest0-21swapper/419:45:006
2190599225,11cyclictest0-21swapper/221:50:014
2192599193,9cyclictest0-21swapper/620:20:018
2190599193,10cyclictest0-21swapper/221:25:014
2193999170,16cyclictest0-21swapper/900:20:1111
2193099173,8cyclictest0-21swapper/719:25:019
2192599173,9cyclictest0-21swapper/622:00:008
2192599172,9cyclictest0-21swapper/622:40:018
2192199173,8cyclictest0-21swapper/522:40:017
2190599173,9cyclictest0-21swapper/223:30:254
2190599173,9cyclictest0-21swapper/219:50:004
21900991714,3cyclictest0-21swapper/123:48:461
21900991714,3cyclictest0-21swapper/100:31:581
2189699173,8cyclictest0-21swapper/020:00:000
2189699173,7cyclictest0-21swapper/022:50:000
2189699172,9cyclictest0-21swapper/020:55:000
283491160,0ptp4l0-21swapper/122:15:231
283491160,0ptp4l0-21swapper/121:30:241
283491160,0ptp4l0-21swapper/121:30:241
283491160,0ptp4l0-21swapper/119:10:241
2193499162,8cyclictest0-21swapper/800:05:0110
2192599162,8cyclictest0-21swapper/620:30:008
2192199163,8cyclictest0-21swapper/519:30:017
2192199163,7cyclictest0-21swapper/520:40:007
2192199161,9cyclictest0-21swapper/521:40:017
2192199161,9cyclictest0-21swapper/521:40:007
2192199161,3cyclictest0-21swapper/519:55:197
2191299162,8cyclictest0-21swapper/321:05:005
2190599163,9cyclictest0-21swapper/200:00:014
2190599163,8cyclictest0-21swapper/223:15:014
21900991614,2cyclictest0-21swapper/123:41:071
21900991614,2cyclictest0-21swapper/123:29:121
21900991614,2cyclictest0-21swapper/123:22:561
21900991614,2cyclictest0-21swapper/100:26:231
214362167,7sleep80-21swapper/819:08:4010
283491150,3ptp4l21-21ksoftirqd/100:14:551
267202150,0sleep70-21swapper/723:25:179
264591150,0getstats0-21swapper/120:10:111
264591150,0getstats0-21swapper/119:45:111
264591150,0getstats0-21swapper/119:35:101
2193999153,7cyclictest0-21swapper/921:30:0111
2193999153,7cyclictest0-21swapper/900:12:0911
2193999152,8cyclictest0-21swapper/921:25:0111
2193499153,8cyclictest0-21swapper/820:00:2410
2193499152,7cyclictest0-21swapper/820:45:0010
2193099153,7cyclictest0-21swapper/723:57:119
2193099153,7cyclictest0-21swapper/721:45:019
2193099153,7cyclictest0-21swapper/721:45:009
2193099152,8cyclictest0-21swapper/723:15:009
2192199153,7cyclictest0-21swapper/521:10:017
2192199152,7cyclictest0-21swapper/519:35:237
2191299154,7cyclictest0-21swapper/321:05:235
2191299153,7cyclictest0-21swapper/321:45:005
2191299153,7cyclictest0-21swapper/321:45:005
2191299152,8cyclictest0-21swapper/323:55:015
2191299152,8cyclictest0-21swapper/319:45:245
2191299152,7cyclictest0-21swapper/319:40:005
2190599153,9cyclictest0-21swapper/219:55:004
2190599153,8cyclictest0-21swapper/221:40:004
2190599153,8cyclictest0-21swapper/221:40:004
2190599153,8cyclictest0-21swapper/200:00:024
2190599153,7cyclictest0-21swapper/221:15:274
2190599152,8cyclictest0-21swapper/222:00:014
2190099152,7cyclictest0-21swapper/121:50:001
2190099152,7cyclictest0-21swapper/121:50:001
21900991513,2cyclictest0-21swapper/123:57:201
21900991513,2cyclictest0-21swapper/123:37:011
21900991513,2cyclictest0-21swapper/123:33:361
21900991513,2cyclictest0-21swapper/123:12:491
21900991513,2cyclictest0-21swapper/100:36:321
21900991513,2cyclictest0-21swapper/100:08:051
2189699153,7cyclictest0-21swapper/019:35:000
128402150,0sleep100-21swapper/1020:20:132
283491140,0ptp4l0-21swapper/123:51:381
283491140,0ptp4l0-21swapper/122:30:131
264591140,0getstats0-21swapper/120:20:101
2194999143,7cyclictest0-21swapper/1121:30:003
2194999142,7cyclictest0-21swapper/1119:15:013
2194399142,8cyclictest0-21swapper/1022:15:242
2193999143,7cyclictest0-21swapper/922:30:0111
2193999142,8cyclictest0-21swapper/920:05:0011
2193999142,7cyclictest0-21swapper/923:10:2411
2193999142,7cyclictest0-21swapper/923:00:2511
2193499142,8cyclictest0-21swapper/819:25:0110
2193499142,7cyclictest0-21swapper/819:40:0010
2193499141,9cyclictest5536-21kworker/u24:000:15:0010
2193099144,6cyclictest0-21swapper/723:10:009
2193099142,7cyclictest0-21swapper/722:05:019
2193099140,1cyclictest0-21swapper/720:14:569
2192599143,7cyclictest0-21swapper/622:05:008
2192599142,7cyclictest0-21swapper/622:55:008
2192599142,7cyclictest0-21swapper/621:15:018
2192599142,7cyclictest0-21swapper/620:05:008
2192199142,8cyclictest2998-21kworker/u24:022:15:017
2191699142,8cyclictest0-21swapper/423:25:016
2190599142,8cyclictest0-21swapper/222:45:014
2190599142,8cyclictest0-21swapper/222:10:224
2190599140,13cyclictest0-21swapper/220:05:014
2189699143,5cyclictest0-21swapper/022:05:010
2189699142,7cyclictest0-21swapper/023:20:230
283491130,1ptp4l21-21ksoftirqd/122:58:091
283491130,1ptp4l21-21ksoftirqd/120:31:311
283491130,1ptp4l21-21ksoftirqd/120:16:041
283491130,0ptp4l0-21swapper/121:55:191
264591130,0getstats0-21swapper/119:15:111
2194999133,6cyclictest0-21swapper/1121:00:013
2193999131,7cyclictest0-21swapper/921:40:0011
2193999131,7cyclictest0-21swapper/921:40:0011
21939991311,1cyclictest0-21swapper/921:50:0011
21939991311,1cyclictest0-21swapper/921:50:0011
2193999130,9cyclictest263511switchtime20:35:2411
2193999130,12cyclictest0-21swapper/922:34:5511
2193999130,12cyclictest0-21swapper/920:05:2511
2193499133,6cyclictest0-21swapper/823:50:0010
2193499130,7cyclictest0-21swapper/822:50:2310
2193099133,6cyclictest0-21swapper/720:10:009
2192599133,6cyclictest0-21swapper/623:45:008
2192599132,7cyclictest0-21swapper/622:35:018
2192199133,6cyclictest0-21swapper/521:50:017
2192199133,6cyclictest0-21swapper/521:50:017
2192199132,6cyclictest0-21swapper/521:55:007
2191299133,6cyclictest0-21swapper/321:35:015
2191299133,6cyclictest0-21swapper/321:35:005
2191299133,6cyclictest0-21swapper/300:30:245
2191299132,7cyclictest0-21swapper/322:40:015
2190599130,12cyclictest5322-21irqrtprio22:15:194
2189699136,4cyclictest0-21swapper/023:40:010
2189699133,6cyclictest0-21swapper/019:45:000
2189699132,7cyclictest0-21swapper/019:50:010
2189699132,7cyclictest0-21swapper/000:15:000
283491120,1ptp4l21-21ksoftirqd/119:55:151
283491120,1ptp4l21-21ksoftirqd/119:54:381
283491120,1ptp4l0-21swapper/122:06:321
283491120,0ptp4l0-21swapper/121:35:121
283491120,0ptp4l0-21swapper/121:35:121
283491120,0ptp4l0-21swapper/119:40:181
264591120,0getstats0-21swapper/120:45:101
2194999122,6cyclictest0-21swapper/1120:45:003
2194399120,1cyclictest0-21swapper/1022:50:192
2193999122,6cyclictest0-21swapper/922:40:2311
2193999121,7cyclictest0-21swapper/922:35:2211
2193999120,7cyclictest0-21swapper/900:40:0011
2192599122,6cyclictest0-21swapper/620:45:008
2189699122,6cyclictest0-21swapper/021:15:000
2189699122,6cyclictest0-21swapper/021:10:010
182352126,5sleep90-21swapper/919:05:0511
283491110,3ptp4l21-21ksoftirqd/121:50:111
283491110,2ptp4l32364-21awk22:10:101
283491110,2ptp4l21-21ksoftirqd/120:40:131
283491110,2ptp4l13603-21date23:10:001
283491110,1ptp4l21-21ksoftirqd/121:15:291
283491110,0ptp4l0-21swapper/121:42:391
283491110,0ptp4l0-21swapper/121:42:391
283491110,0ptp4l0-21swapper/119:20:131
2194999117,3cyclictest27467-21cat19:55:203
2194999112,5cyclictest0-21swapper/1100:00:233
2194999110,6cyclictest0-21swapper/1120:34:563
2194999110,10cyclictest0-21swapper/1123:40:153
2194999110,10cyclictest0-21swapper/1119:15:023
2194399113,5cyclictest0-21swapper/1020:00:002
2194399110,9cyclictest3193-21gltestperf22:55:162
2194399110,2cyclictest26509-21tr21:20:142
2194399110,11cyclictest0-21swapper/1022:40:132
2193999115,5cyclictest14261-21latency_hist21:05:0111
2193999111,6cyclictest0-21swapper/923:05:0011
2193999110,7cyclictest48841latency_hist21:35:0011
2193999110,7cyclictest48841latency_hist21:35:0011
2193999110,11cyclictest0-21swapper/923:18:2311
2193999110,11cyclictest0-21swapper/919:27:5811
2193999110,10cyclictest0-21swapper/923:40:2511
2193999110,10cyclictest0-21swapper/921:55:3811
2193999110,10cyclictest0-21swapper/921:15:3411
2193099114,7cyclictest561rcuc/700:21:149
2193099110,2cyclictest0-21swapper/723:50:019
2192199112,6cyclictest0-21swapper/523:45:007
2192199112,5cyclictest0-21swapper/522:00:007
2192199111,7cyclictest0-21swapper/523:20:007
2192199110,10cyclictest2789-21df22:55:157
2191699110,11cyclictest0-21swapper/422:35:156
2191699110,10cyclictest0-21swapper/421:15:156
2191299118,2cyclictest13203-21turbostat00:00:015
2191299110,10cyclictest4010-21cut22:15:145
2190599110,10cyclictest0-21swapper/222:00:154
2190099112,6cyclictest0-21swapper/121:30:011
2190099111,6cyclictest0-21swapper/122:25:011
283491100,1ptp4l21-21ksoftirqd/122:50:361
283491100,1ptp4l21-21ksoftirqd/121:12:051
283491100,1ptp4l15964-21ptp4l00:00:191
283491100,1ptp4l0-21swapper/122:45:151
283491100,0ptp4l0-21swapper/123:04:551
283491100,0ptp4l0-21swapper/122:20:131
283491100,0ptp4l0-21swapper/100:20:081
264591100,0getstats0-21swapper/122:40:111
264591100,0getstats0-21swapper/120:50:101
2194999100,1cyclictest0-21swapper/1119:35:133
2194399109,1cyclictest0-21swapper/1023:43:192
2194399109,1cyclictest0-21swapper/1023:36:342
2194399109,1cyclictest0-21swapper/1023:06:052
2194399109,1cyclictest0-21swapper/1023:04:002
2194399109,1cyclictest0-21swapper/1000:27:382
2194399100,1cyclictest0-21swapper/1023:16:212
2194399100,1cyclictest0-21swapper/1023:12:012
2194399100,1cyclictest0-21swapper/1022:28:502
2194399100,1cyclictest0-21swapper/1022:21:262
2193999104,5cyclictest15347-21irqrtprio00:00:1611
2193999104,5cyclictest10532-21cpuspeed_turbos19:35:1211
2193999103,6cyclictest9519-21wc21:40:1411
2193999103,6cyclictest9519-21wc21:40:1411
2193999103,6cyclictest28198-21fschecks_time19:15:1611
2193999103,6cyclictest16415-21cpuspeed20:25:1211
2193999103,6cyclictest0-21swapper/920:30:2611
2193999100,9cyclictest8170-21gltestperf20:55:1511
2193999100,9cyclictest573-21netstat19:20:2011
2193999100,9cyclictest4768-21cut20:50:1711
2193999100,9cyclictest3664-21sendmail_mailqu00:30:2111
2193999100,9cyclictest32615-21cpuspeed_turbos22:10:1111
2193999100,9cyclictest31474-21grep22:50:1411
2193999100,9cyclictest31366-21switchtime23:30:2311
2193999100,9cyclictest29913-21cut22:05:1911
2193999100,9cyclictest29905-21proc_pri20:40:2011
2193999100,9cyclictest28005-21unixbench_singl23:25:2311
2193999100,9cyclictest27907-21gltestperf22:45:1611
2193999100,9cyclictest25851-21iwlist22:00:1811
2193999100,9cyclictest20183-21cat21:55:0011
2193999100,9cyclictest18966-21grep19:45:1611
2193999100,9cyclictest18707-21awk21:10:1211
2193999100,9cyclictest18633-21fschecks_time00:05:1711
2193999100,9cyclictest14484-21cpuspeed_turbos19:40:1411
2193999100,9cyclictest11586-21cut23:55:1311
2193999100,9cyclictest10277-21date22:20:2511
2193999100,4cyclictest0-21swapper/923:53:1011
2193999100,4cyclictest0-21swapper/919:33:5811
2193999100,10cyclictest0-21swapper/923:46:5311
2193999100,10cyclictest0-21swapper/923:22:0911
2193999100,10cyclictest0-21swapper/922:57:3311
2193999100,10cyclictest0-21swapper/922:15:1311
2193999100,10cyclictest0-21swapper/919:14:3411
2193499107,2cyclictest25585-21turbostat21:20:0010
2193499102,5cyclictest0-21swapper/823:05:0010
2193499102,5cyclictest0-21swapper/800:00:0110
2193499100,9cyclictest7055-21cut00:35:1610
2193499100,9cyclictest29459-21fw_conntrack22:05:1710
2192599104,5cyclictest0-21swapper/621:24:558
2192599100,9cyclictest0-21swapper/619:35:178
2192199109,1cyclictest0-21swapper/523:08:557
2192199102,5cyclictest17481-21kworker/u24:219:20:007
2192199100,1cyclictest0-21swapper/521:15:207
2191699109,1cyclictest0-21swapper/423:26:196
2191699109,1cyclictest0-21swapper/400:21:466
2191699109,1cyclictest0-21swapper/400:12:036
2191699109,1cyclictest0-21swapper/400:05:186
2191699100,1cyclictest0-21swapper/423:47:556
2191699100,1cyclictest0-21swapper/423:41:336
2191699100,1cyclictest0-21swapper/423:33:506
2191699100,1cyclictest0-21swapper/423:12:196
2191699100,1cyclictest0-21swapper/423:01:416
2191699100,1cyclictest0-21swapper/400:28:516
2191699100,1cyclictest0-21swapper/400:01:456
2191699100,10cyclictest0-21swapper/422:56:086
2191699100,10cyclictest0-21swapper/422:46:266
2191699100,10cyclictest0-21swapper/400:36:566
2191699100,10cyclictest0-21swapper/400:15:146
2191299107,2cyclictest28920-21latency19:15:185
2191299102,5cyclictest0-21swapper/319:50:005
2191299100,2cyclictest11630-21sed23:05:195
2190599107,2cyclictest0-21swapper/220:35:144
2190599102,5cyclictest0-21swapper/220:25:154
2190599101,5cyclictest0-21swapper/220:55:234
2190599100,9cyclictest5359-21/usr/sbin/munin00:35:144
2189699102,4cyclictest0-21swapper/023:10:000
2189699100,9cyclictest10010-21df21:40:140
2189699100,9cyclictest10010-21df21:40:140
9408090,0rtkit-daemon0-21swapper/023:35:360
28349190,1ptp4l21-21ksoftirqd/122:00:141
28349190,1ptp4l21-21ksoftirqd/121:05:001
28349190,1ptp4l21-21ksoftirqd/121:00:141
28349190,1ptp4l21-21ksoftirqd/120:55:011
28349190,1ptp4l21-21ksoftirqd/120:35:131
28349190,1ptp4l21-21ksoftirqd/120:25:001
28349190,1ptp4l21-21ksoftirqd/120:00:001
28349190,0ptp4l0-21swapper/123:15:131
28349190,0ptp4l0-21swapper/122:35:001
28349190,0ptp4l0-21swapper/121:20:141
28349190,0ptp4l0-21swapper/119:30:141
28349190,0ptp4l0-21swapper/119:25:171
28349190,0ptp4l0-21swapper/100:20:001
219499998,1cyclictest0-21swapper/1121:50:203
219499996,2cyclictest15033-21grep21:05:123
219499990,9cyclictest0-21swapper/1120:25:143
219499990,8cyclictest1009-21runrttasks22:59:303
219499990,8cyclictest0-21swapper/1100:34:513
219499990,1cyclictest0-21swapper/1122:25:203
219439998,1cyclictest0-21swapper/1023:55:192
219439998,1cyclictest0-21swapper/1021:15:172
219439998,1cyclictest0-21swapper/1000:34:212
219439998,1cyclictest0-21swapper/1000:15:512
219439992,4cyclictest0-21swapper/1019:10:012
219439990,9cyclictest0-21swapper/1023:50:132
219439990,9cyclictest0-21swapper/1023:49:412
219439990,9cyclictest0-21swapper/1023:30:102
219439990,9cyclictest0-21swapper/1022:30:082
219439990,9cyclictest0-21swapper/1022:10:172
219439990,9cyclictest0-21swapper/1000:35:532
219439990,9cyclictest0-21swapper/1000:21:282
219439990,9cyclictest0-21swapper/1000:11:332
219439990,2cyclictest0-21swapper/1000:07:492
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219059998,1cyclictest0-21swapper/219:15:164
219059990,9cyclictest0-21swapper/221:15:004
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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