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2026-06-22 - 12:13

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #4, slot #1

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.

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 rack4slot1s.osadl.org (updated Mon Jun 22, 2026 00:44:19)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
260362830,7sleep0201rcuc/022:38:190
260362830,7sleep0201rcuc/022:38:190
260362830,7sleep0201rcuc/022:38:190
11212680,3chrt0-21swapper/221:33:122
11212680,3chrt0-21swapper/221:33:122
245762660,3sleep00-21swapper/019:43:070
245762660,3sleep00-21swapper/019:43:070
269372650,2chrt26929-21timerandwakeup21:13:211
269372650,2chrt26929-21timerandwakeup21:13:211
272582580,2sleep20-21swapper/222:43:112
272582580,2sleep20-21swapper/222:43:112
272582580,2sleep20-21swapper/222:43:112
112112540,3chrt0-21swapper/221:58:212
112112540,3chrt0-21swapper/221:58:212
112112540,3chrt0-21swapper/221:58:212
173132500,1sleep00-21swapper/023:43:110
173132500,1sleep00-21swapper/023:43:110
13458995045,3cyclictest0-21swapper/000:03:080
13458995045,3cyclictest0-21swapper/000:03:080
13458995045,3cyclictest0-21swapper/000:03:080
13458995044,4cyclictest24738-21/usr/sbin/munin00:03:170
13458995044,4cyclictest24738-21/usr/sbin/munin00:03:170
13458995044,4cyclictest24738-21/usr/sbin/munin00:03:170
214962460,2chrt0-21swapper/220:58:232
225502450,2sleep00-21swapper/019:38:010
225502450,2sleep00-21swapper/019:38:010
45082440,3sleep10-21swapper/121:43:001
45082440,3sleep10-21swapper/121:43:001
28152440,2chrt0-21swapper/200:28:242
28152440,2chrt0-21swapper/200:28:242
28152440,2chrt0-21swapper/200:28:242
100412400,2sleep00-21swapper/023:23:130
100412400,2sleep00-21swapper/023:23:130
181692390,5sleep118168-21threads19:23:231
209392380,3sleep10-21swapper/123:53:051
209392380,3sleep10-21swapper/123:53:051
209392380,3sleep10-21swapper/123:53:051
72882360,2sleep07430-21fschecks_time20:23:130
72882360,2sleep07430-21fschecks_time20:23:130
1346999361,25cyclictest24717-21chrt00:03:083
1346999361,25cyclictest24717-21chrt00:03:083
1346999361,25cyclictest24717-21chrt00:03:083
306282350,2chrt0-21swapper/300:18:123
306282350,2chrt0-21swapper/300:18:123
306282350,2chrt0-21swapper/300:18:123
22922340,1sleep00-21swapper/020:08:200
22922340,1sleep00-21swapper/020:08:200
217752340,3sleep20-21swapper/219:33:212
217752340,3sleep20-21swapper/219:33:212
13467993424,8cyclictest29785-21unixbench_singl00:13:241
13467993424,8cyclictest29785-21unixbench_singl00:13:241
13467993424,8cyclictest29785-21unixbench_singl00:13:241
13458993428,4cyclictest13441-21cyclictest20:18:000
13458993428,4cyclictest13441-21cyclictest20:18:000
13458993428,4cyclictest13441-21cyclictest20:18:000
13467993329,2cyclictest0-21swapper/100:03:001
13467993329,2cyclictest0-21swapper/100:03:001
13467993329,2cyclictest0-21swapper/100:03:001
13458993328,3cyclictest30707-21kernelversion19:58:150
13458993328,3cyclictest30707-21kernelversion19:58:150
13458993324,7cyclictest12935-21netstat22:03:180
13458993324,7cyclictest12935-21netstat22:03:180
13458993324,7cyclictest12935-21netstat22:03:180
13467993224,6cyclictest17585-21cut23:43:131
13467993224,6cyclictest17585-21cut23:43:131
13467993223,7cyclictest31105-21netstat00:18:171
13467993223,7cyclictest31105-21netstat00:18:171
13467993223,7cyclictest31105-21netstat00:18:171
13458993223,7cyclictest1210-21fschecks_time21:33:130
13458993223,7cyclictest1210-21fschecks_time21:33:130
6512310,2sleep1654-21proc_pri00:23:201
6512310,2sleep1654-21proc_pri00:23:201
1346899313,23cyclictest24698-21chrt00:03:072
1346899313,23cyclictest24698-21chrt00:03:072
1346899313,23cyclictest24698-21chrt00:03:072
13467993127,3cyclictest11992-21sh22:03:001
13467993127,3cyclictest11992-21sh22:03:001
13467993127,3cyclictest11992-21sh22:03:001
13467993126,3cyclictest6312-21fschecks_time23:13:141
13467993126,3cyclictest6312-21fschecks_time23:13:141
13458993127,3cyclictest13441-21cyclictest20:57:590
13458993127,3cyclictest13441-21cyclictest20:57:590
13458993126,4cyclictest23047-21sendmail_mailqu21:03:190
13458993126,4cyclictest23047-21sendmail_mailqu21:03:190
13458993125,4cyclictest18986-21latency_hist23:48:120
13458993122,6cyclictest749-21runrttasks19:53:140
13458993122,6cyclictest749-21runrttasks19:53:140
13469993024,3cyclictest0-21swapper/323:36:563
13469993024,3cyclictest0-21swapper/323:36:563
13469993024,3cyclictest0-21swapper/323:36:563
13469993019,7cyclictest19226-21chrt22:19:373
13469993019,7cyclictest19226-21chrt22:19:373
13469993017,8cyclictest27539-21chrt21:17:543
13469993017,8cyclictest27539-21chrt21:17:543
13467993024,4cyclictest1346-21avahi-daemon22:53:221
13467993024,4cyclictest1346-21avahi-daemon22:53:221
13467993024,4cyclictest1346-21avahi-daemon22:53:221
13467993023,5cyclictest15036-21gltestperf20:43:121
13467993023,5cyclictest15036-21gltestperf20:43:121
13467993021,7cyclictest28477-21netstat21:18:191
13467993021,7cyclictest28477-21netstat21:18:191
13467993021,7cyclictest28477-21netstat21:18:191
13458993025,3cyclictest24211-21ntp_offset22:33:190
13458993025,3cyclictest24211-21ntp_offset22:33:190
13458993025,3cyclictest16335-21gltestperf22:13:130
13458993025,3cyclictest16335-21gltestperf22:13:130
13458993025,3cyclictest16335-21gltestperf22:13:130
13458993024,4cyclictest13441-21cyclictest19:51:260
13458993024,4cyclictest13441-21cyclictest19:51:260
13469992918,6cyclictest13257-21chrt23:31:573
13469992918,6cyclictest13257-21chrt23:31:573
13469992918,6cyclictest13257-21chrt23:31:573
13469992917,8cyclictest7679-21chrt23:17:503
13469992917,8cyclictest7679-21chrt23:17:503
13469992917,8cyclictest17050-21chrt23:42:263
13469992917,8cyclictest17050-21chrt23:42:263
13469992917,7cyclictest5628-21chrt23:10:223
13469992917,7cyclictest5628-21chrt23:10:223
13469992916,9cyclictest10483-21chrt20:30:143
13469992916,9cyclictest10483-21chrt20:30:143
13469992916,9cyclictest10483-21chrt20:30:143
1346799293,22cyclictest25486-21tail00:03:211
1346799293,22cyclictest25486-21tail00:03:211
1346799293,22cyclictest25486-21tail00:03:211
13467992925,2cyclictest0-21swapper/121:53:251
13467992925,2cyclictest0-21swapper/121:53:251
13467992924,3cyclictest23219-21gltestperf23:58:131
13467992924,3cyclictest13441-21cyclictest20:18:131
13467992924,3cyclictest13441-21cyclictest20:18:131
13467992923,4cyclictest14678-21systemd-journal21:37:231
13467992923,4cyclictest14678-21systemd-journal21:37:231
13467992922,5cyclictest5247-21timerandwakeup23:08:231
13467992922,5cyclictest5247-21timerandwakeup23:08:231
13467992922,5cyclictest14610-21threads23:33:231
13467992922,5cyclictest14610-21threads23:33:231
13467992922,5cyclictest14610-21threads23:33:231
13467992921,6cyclictest31322-21latency_hist21:28:001
13467992921,6cyclictest31322-21latency_hist21:28:001
13467992921,6cyclictest31322-21latency_hist21:28:001
13458992924,4cyclictest13441-21cyclictest23:13:050
13458992924,4cyclictest13441-21cyclictest23:13:050
13458992923,4cyclictest32049-21cron00:23:000
13458992923,4cyclictest32049-21cron00:23:000
13458992923,4cyclictest32049-21cron00:23:000
13458992922,5cyclictest22965-21sshd22:29:240
13458992922,5cyclictest22965-21sshd22:29:240
13458992922,5cyclictest22965-21sshd22:29:240
13458992921,6cyclictest31456-21kernelversion22:53:160
13458992921,6cyclictest31456-21kernelversion22:53:160
13458992921,6cyclictest31456-21kernelversion22:53:160
13458992921,6cyclictest21225-21cut23:53:120
13458992921,5cyclictest0-21swapper/020:43:210
13458992921,5cyclictest0-21swapper/020:43:210
13458992921,5cyclictest0-21swapper/020:43:210
13469992819,6cyclictest23684-21chrt21:06:203
13469992819,6cyclictest23684-21chrt21:06:203
13469992818,7cyclictest5159-21chrt00:37:053
13469992818,7cyclictest5159-21chrt00:37:053
13469992818,7cyclictest27995-21chrt19:51:233
13469992818,7cyclictest27995-21chrt19:51:233
13469992818,7cyclictest26029-21chrt19:44:593
13469992818,7cyclictest26029-21chrt19:44:593
13469992818,6cyclictest6742-21chrt20:20:373
13469992818,6cyclictest6742-21chrt20:20:373
13469992818,6cyclictest1339-21chrt00:26:003
13469992818,6cyclictest1339-21chrt00:26:003
13469992817,8cyclictest9419-21chrt23:20:473
13469992817,8cyclictest9419-21chrt23:20:473
13469992817,8cyclictest9419-21chrt23:20:473
13469992817,8cyclictest4811-21chrt20:15:113
13469992817,8cyclictest4811-21chrt20:15:113
13469992817,8cyclictest4811-21chrt20:15:113
13469992817,8cyclictest31705-21chrt00:18:443
13469992817,8cyclictest31705-21chrt00:18:443
13469992817,8cyclictest31705-21chrt00:18:443
13469992817,7cyclictest32273-21chrt22:54:063
13469992817,7cyclictest32273-21chrt22:54:063
13469992817,7cyclictest32273-21chrt22:54:063
13469992817,6cyclictest8552-21chrt20:24:393
13469992817,6cyclictest8552-21chrt20:24:393
13469992817,6cyclictest1769-21chrt22:59:533
13469992817,6cyclictest1769-21chrt22:59:533
13469992817,6cyclictest1769-21chrt22:59:533
13469992816,8cyclictest2453-21chrt21:36:073
13469992816,8cyclictest2453-21chrt21:36:073
13469992816,6cyclictest6359-21chrt21:47:533
13469992816,6cyclictest6359-21chrt21:47:533
13469992816,6cyclictest6359-21chrt21:47:533
13469992815,4cyclictest248372sleep322:34:323
13469992815,4cyclictest248372sleep322:34:323
13467992823,3cyclictest13441-21cyclictest23:38:141
13467992823,3cyclictest13441-21cyclictest23:38:141
13458992824,3cyclictest6103-21missed_timers00:38:160
13458992824,3cyclictest6103-21missed_timers00:38:160
13458992824,3cyclictest6103-21missed_timers00:38:160
13458992821,5cyclictest674-21gpm23:08:000
13458992821,5cyclictest674-21gpm23:08:000
105742280,2sleep20-21swapper/223:23:192
105742280,2sleep20-21swapper/223:23:192
13469992721,3cyclictest28646-21chrt22:45:213
13469992721,3cyclictest28646-21chrt22:45:213
13469992718,6cyclictest3223-21chrt00:31:103
13469992718,6cyclictest3223-21chrt00:31:103
13469992718,6cyclictest3223-21chrt00:31:103
13469992718,6cyclictest19759-21chrt20:54:023
13469992718,6cyclictest19759-21chrt20:54:023
13469992717,7cyclictest9952-21chrt21:55:493
13469992717,7cyclictest9952-21chrt21:55:493
13469992717,6cyclictest16273-21chrt20:47:063
13469992717,6cyclictest16273-21chrt20:47:063
13469992717,6cyclictest16273-21chrt20:47:063
13469992717,6cyclictest13576-21chrt22:04:093
13469992717,6cyclictest13576-21chrt22:04:093
13469992717,6cyclictest13576-21chrt22:04:093
13469992717,6cyclictest1197-21chrt20:06:423
13469992717,6cyclictest1197-21chrt20:06:423
13469992716,8cyclictest4230-21chrt21:40:013
13469992716,8cyclictest4230-21chrt21:40:013
13469992716,8cyclictest22989-21chrt22:29:423
13469992716,8cyclictest22989-21chrt22:29:423
13469992716,8cyclictest22989-21chrt22:29:423
13469992716,7cyclictest31569-21chrt19:59:273
13469992716,7cyclictest31569-21chrt19:59:273
13469992716,6cyclictest26816-21chrt22:41:033
13469992716,6cyclictest26816-21chrt22:41:033
13469992716,6cyclictest26816-21chrt22:41:033
13467992720,5cyclictest29752-21needreboot22:48:181
13467992720,5cyclictest29752-21needreboot22:48:181
13467992720,5cyclictest29752-21needreboot22:48:181
13467992720,5cyclictest2333-21missed_timers00:28:181
13467992720,5cyclictest2333-21missed_timers00:28:181
13467992720,5cyclictest2333-21missed_timers00:28:181
13467992720,5cyclictest0-21swapper/119:38:221
13467992720,5cyclictest0-21swapper/119:38:221
13458992722,4cyclictest13441-21cyclictest22:48:120
13458992721,5cyclictest8958-21kernelversion21:53:170
13458992721,5cyclictest8958-21kernelversion21:53:170
13458992721,4cyclictest15244-21idleruntime-cro23:38:000
13458992721,4cyclictest15244-21idleruntime-cro23:38:000
13458992721,4cyclictest15244-21idleruntime-cro23:38:000
13458992720,5cyclictest7071-21threads23:13:230
13458992720,5cyclictest7071-21threads23:13:230
13469992617,6cyclictest20531-21chrt19:31:253
13469992617,6cyclictest20531-21chrt19:31:253
13469992617,6cyclictest11718-21chrt21:59:353
13469992617,6cyclictest11718-21chrt21:59:353
13469992617,6cyclictest11718-21chrt21:59:353
13469992617,4cyclictest14430-21chrt20:42:403
13469992617,4cyclictest14430-21chrt20:42:403
13469992617,4cyclictest14430-21chrt20:42:403
13469992616,7cyclictest8069-21chrt21:50:543
13469992616,7cyclictest8069-21chrt21:50:543
13469992616,7cyclictest8069-21chrt21:50:543
13469992616,6cyclictest28141-21chrt00:10:483
13469992616,6cyclictest28141-21chrt00:10:483
13469992616,6cyclictest17539-21chrt22:16:513
13469992616,6cyclictest17539-21chrt22:16:513
13469992616,6cyclictest17539-21chrt22:16:513
13469992615,7cyclictest31076-21chrt21:25:053
13469992615,7cyclictest31076-21chrt21:25:053
13469992615,7cyclictest31076-21chrt21:25:053
13469992615,7cyclictest29795-21chrt19:55:333
13469992615,7cyclictest29795-21chrt19:55:333
13469992615,6cyclictest15521-21chrt22:09:523
13469992615,6cyclictest15521-21chrt22:09:523
13469992615,6cyclictest15521-21chrt22:09:523
13467992622,2cyclictest75172sleep100:43:101
13467992622,2cyclictest75172sleep100:43:101
13467992622,2cyclictest75172sleep100:43:101
13467992621,4cyclictest14678-21systemd-journal20:54:431
13467992621,4cyclictest14678-21systemd-journal20:54:431
13467992621,3cyclictest0-21swapper/119:57:591
13467992621,3cyclictest0-21swapper/119:57:591
13467992620,4cyclictest27910-21unixbench_singl00:08:251
13467992620,4cyclictest27910-21unixbench_singl00:08:251
13467992620,4cyclictest0-21swapper/122:43:001
13467992620,4cyclictest0-21swapper/122:43:001
13467992620,4cyclictest0-21swapper/122:43:001
13467992620,3cyclictest0-21swapper/122:28:001
13467992620,3cyclictest0-21swapper/122:28:001
13467992620,3cyclictest0-21swapper/122:28:001
13458992621,3cyclictest0-21swapper/019:28:000
13458992620,4cyclictest3803-21fschecks_time00:33:130
13458992620,4cyclictest3803-21fschecks_time00:33:130
13458992619,5cyclictest5884-21unixbench-2d21:43:240
13458992619,5cyclictest5884-21unixbench-2d21:43:240
13458992619,5cyclictest5884-21unixbench-2d21:43:240
13458992619,5cyclictest12389-21fschecks_count22:03:130
13458992619,5cyclictest12389-21fschecks_count22:03:130
13458992617,6cyclictest7869-21/usr/sbin/munin23:18:140
13458992617,6cyclictest7869-21/usr/sbin/munin23:18:140
13458992617,6cyclictest7869-21/usr/sbin/munin23:18:140
13469992516,6cyclictest3747-21chrt23:06:043
13469992516,6cyclictest3747-21chrt23:06:043
13469992516,6cyclictest25668-21chrt21:12:553
13469992516,6cyclictest25668-21chrt21:12:553
13469992516,6cyclictest25668-21chrt21:12:553
13469992516,5cyclictest21076-21chrt22:24:033
13469992516,5cyclictest21076-21chrt22:24:033
13469992516,5cyclictest21076-21chrt22:24:033
13469992515,7cyclictest20631-21chrt23:50:183
13469992515,7cyclictest20631-21chrt23:50:183
13469992515,7cyclictest20631-21chrt23:50:183
13469992515,7cyclictest18447-21taskset19:23:333
13469992515,6cyclictest22272-21chrt19:34:503
13469992515,6cyclictest22272-21chrt19:34:503
13469992514,7cyclictest6909-21chrt00:40:193
13469992514,7cyclictest6909-21chrt00:40:193
13469992514,7cyclictest6909-21chrt00:40:193
13469992514,7cyclictest30387-21chrt22:48:473
13469992514,7cyclictest30387-21chrt22:48:473
13469992514,7cyclictest30387-21chrt22:48:473
13469992514,6cyclictest22379-21chrt23:53:473
13469992514,6cyclictest22379-21chrt23:53:473
13467992521,3cyclictest13441-21cyclictest22:33:211
13467992521,3cyclictest13441-21cyclictest22:33:211
13467992520,3cyclictest0-21swapper/122:58:181
13467992520,3cyclictest0-21swapper/122:58:181
13467992520,3cyclictest0-21swapper/122:58:181
13467992519,4cyclictest0-21swapper/123:18:191
13467992519,4cyclictest0-21swapper/123:18:191
13467992519,4cyclictest0-21swapper/123:18:191
13467992518,6cyclictest15424-21ntp_kernel_pll_20:43:171
13467992518,6cyclictest15424-21ntp_kernel_pll_20:43:171
13467992518,6cyclictest15424-21ntp_kernel_pll_20:43:171
13467992518,5cyclictest13441-21cyclictest19:48:131
13467992518,5cyclictest13441-21cyclictest19:48:131
13458992521,2cyclictest0-21swapper/021:13:150
13458992521,2cyclictest0-21swapper/021:13:150
13458992520,4cyclictest12196-21kernelversion23:28:140
13458992520,4cyclictest12196-21kernelversion23:28:140
13458992520,4cyclictest12196-21kernelversion23:28:140
13458992519,4cyclictest2411-21needreboot00:28:190
13458992519,4cyclictest2411-21needreboot00:28:190
13458992519,4cyclictest2411-21needreboot00:28:190
13458992519,4cyclictest13681-21apache221:59:540
13458992519,4cyclictest0-21swapper/000:23:230
13458992519,4cyclictest0-21swapper/000:23:230
13458992519,3cyclictest0-21swapper/020:43:110
13458992519,3cyclictest0-21swapper/020:43:110
13458992519,3cyclictest0-21swapper/020:43:110
13458992519,3cyclictest0-21swapper/020:18:150
13458992519,3cyclictest0-21swapper/020:18:150
13458992518,5cyclictest32578-21sh22:58:140
13458992518,5cyclictest32578-21sh22:58:140
13458992518,5cyclictest32578-21sh22:58:140
13458992518,5cyclictest23201-21cut23:58:130
13458992518,5cyclictest20182-21kworker/u9:0+nfsiod21:13:000
13458992518,5cyclictest20182-21kworker/u9:0+nfsiod21:13:000
13458992518,5cyclictest20182-21kworker/u9:0+nfsiod21:13:000
13458992518,5cyclictest13441-21cyclictest20:37:340
13458992518,5cyclictest13441-21cyclictest20:37:340
13458992518,4cyclictest0-21swapper/021:38:240
13458992518,4cyclictest0-21swapper/021:38:240
13458992517,6cyclictest30540-21cut00:18:110
13458992517,6cyclictest30540-21cut00:18:110
13458992517,6cyclictest30540-21cut00:18:110
13469992418,4cyclictest29097-21chrt21:18:583
13469992418,4cyclictest29097-21chrt21:18:583
13469992418,4cyclictest29097-21chrt21:18:583
13469992418,3cyclictest24043-21chrt19:38:403
13469992418,3cyclictest24043-21chrt19:38:403
13469992416,4cyclictest5742sleep321:31:123
13469992416,4cyclictest5742sleep321:31:123
13469992415,6cyclictest12240-21chrt20:33:523
13469992415,6cyclictest12240-21chrt20:33:523
13469992414,6cyclictest11160-21chrt23:23:573
13469992414,6cyclictest11160-21chrt23:23:573
13469992413,6cyclictest18013-21chrt23:43:183
13469992413,6cyclictest18013-21chrt23:43:183
13469992412,8cyclictest2019-21taskset20:08:153
13469992412,8cyclictest2019-21taskset20:08:153
13467992420,2cyclictest0-21swapper/123:28:221
13467992420,2cyclictest0-21swapper/123:28:221
13467992420,2cyclictest0-21swapper/123:28:221
13467992419,3cyclictest0-21swapper/122:03:231
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