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2025-12-21 - 18:14

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #e, 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.

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 rackeslot6s.osadl.org (updated Sun Dec 21, 2025 12:44:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1100505999211,7cyclictest1156025-21apt-get12:35:011
1100507998274,5cyclictest311ktimers/212:05:012
1100507998274,5cyclictest311ktimers/212:05:012
1100505997814,19cyclictest1108546-21/usr/sbin/munin07:55:191
110050299711,66cyclictest0-21swapper/010:55:010
110050599699,23cyclictest0-21swapper/111:45:011
110050599699,23cyclictest0-21swapper/111:45:011
1100502996359,2cyclictest0-21swapper/010:00:010
1100507995636,13cyclictest311ktimers/207:55:142
1100502995434,18cyclictest1119402-21kworker/0:1+events09:30:000
1100507995344,5cyclictest1140735-21munin-plugin-st11:05:002
1100507995344,5cyclictest1140735-21munin-plugin-st11:04:592
110050799531,16cyclictest0-21swapper/208:55:012
1100507995233,14cyclictest311ktimers/211:55:112
1100502995244,4cyclictest167350irq/118-8000000.ethernet-tx010:35:000
1100505995140,7cyclictest0-21swapper/111:30:301
110050599511,19cyclictest0-21swapper/110:40:011
110050299514,12cyclictest20850irq/208-8000000.ethernet07:50:000
110050299512,46cyclictest0-21swapper/010:35:230
110050799504,17cyclictest32-21ksoftirqd/209:45:012
1100507995038,7cyclictest0-21swapper/210:05:002
1100507995029,15cyclictest311ktimers/210:10:142
1100507995026,16cyclictest311ktimers/209:35:152
110050299507,38cyclictest15-21rcuc/007:10:010
110050299507,38cyclictest15-21rcuc/007:10:010
1100502995040,6cyclictest1104858-21grep07:30:300
110050299502,22cyclictest20850irq/208-8000000.ethernet11:05:010
110050299502,22cyclictest20850irq/208-8000000.ethernet11:05:010
1100507994929,15cyclictest311ktimers/208:20:152
1100502994943,4cyclictest1127875-21munin-plugin-st09:49:590
1100502994912,17cyclictest14-21rcu_preempt07:20:010
1100507994831,12cyclictest0-21swapper/212:10:282
1100505994834,9cyclictest1122802-21sendmail09:20:001
1100502994839,6cyclictest20850irq/208-8000000.ethernet08:05:290
1100507994739,4cyclictest0-21swapper/208:20:002
1100505994735,5cyclictest1110048-21munin-plugin-st08:05:001
1100505994729,12cyclictest0-21swapper/108:30:261
1100502994733,9cyclictest0-21swapper/012:00:300
1100502994733,9cyclictest0-21swapper/012:00:300
110050299472,42cyclictest0-21swapper/012:05:210
110050299471,2cyclictest0-21swapper/011:45:010
1100507994634,8cyclictest1137266-21apt-get10:45:012
1100505994636,5cyclictest0-21swapper/107:15:251
110050599461,36cyclictest1123591-21grep09:20:281
110050299462,4cyclictest1130381-21unixbench_singl10:00:300
110050299461,5cyclictest1132127-21grep10:10:300
1100507994530,8cyclictest1102376-21grep07:15:272
1100507994524,16cyclictest311ktimers/208:45:162
1100505994532,8cyclictest0-21swapper/111:10:271
110050299451,42cyclictest0-21swapper/010:55:260
1100507994433,8cyclictest0-21swapper/207:50:292
1100507994431,9cyclictest0-21swapper/207:20:272
1100507994427,12cyclictest311ktimers/208:05:152
1100505994429,9cyclictest0-21swapper/112:00:001
1100505994425,14cyclictest231ktimers/109:30:161
1100502994437,4cyclictest167350irq/118-8000000.ethernet-tx008:15:240
1100502994419,10cyclictest1148623-21/usr/sbin/munin11:50:190
110050299441,40cyclictest1148127-21phc2sys-jitter11:45:250
110050299441,40cyclictest1148127-21phc2sys-jitter11:45:250
1100507994336,4cyclictest1148425-21munin-plugin-st11:50:002
1100507994336,4cyclictest1148425-21munin-plugin-st11:50:002
1100507994331,7cyclictest0-21swapper/211:15:302
1100507994331,7cyclictest0-21swapper/211:15:302
1100507994329,9cyclictest0-21swapper/208:25:262
110050599431,34cyclictest1119352-21grep08:55:301
1100502994328,9cyclictest0-21swapper/008:25:260
110050299432,38cyclictest0-21swapper/009:40:010
1100502994318,22cyclictest0-21swapper/009:15:170
110050299431,40cyclictest0-21swapper/012:25:240
110050299431,40cyclictest0-21swapper/012:25:240
1100507994232,7cyclictest0-21swapper/211:10:272
1100507994232,6cyclictest0-21swapper/209:00:292
1100507994232,6cyclictest0-21swapper/209:00:292
1100505994233,5cyclictest0-21swapper/112:00:181
1100505994233,5cyclictest0-21swapper/112:00:181
1100505994232,7cyclictest1144226-21ls11:25:001
110050599421,33cyclictest1115978-21grep08:35:281
110050299429,7cyclictest1137266-21apt-get10:45:010
1100502994234,5cyclictest0-21swapper/010:25:240
1100502994234,5cyclictest0-21swapper/010:25:240
1100502994232,7cyclictest1153494-21munin-plugin-st12:20:000
1100502994230,8cyclictest0-21swapper/012:30:290
110050299421,4cyclictest0-21swapper/011:15:010
110050299421,39cyclictest0-21swapper/007:40:110
1100507994129,9cyclictest311ktimers/212:30:132
1100505994125,5cyclictest22-21rcuc/107:45:311
1100505994124,11cyclictest0-21swapper/110:55:261
1100502994133,4cyclictest0-21swapper/008:40:110
1100502994132,6cyclictest1105226-21/usr/sbin/munin07:35:160
1100502994126,12cyclictest0-21swapper/008:50:280
110050299412,4cyclictest1143572-21ssh11:20:200
110050299411,3cyclictest1137266-21apt-get10:45:040
110050299411,38cyclictest0-21swapper/008:00:210
110050299411,37cyclictest1143253-21cron11:20:000
110050299411,37cyclictest1143253-21cron11:20:000
110050299411,36cyclictest0-21swapper/008:35:190
1100507994030,5cyclictest0-21swapper/210:30:302
1100507994028,7cyclictest0-21swapper/211:25:292
1100507994023,13cyclictest0-21swapper/211:50:282
1100507994022,13cyclictest311ktimers/211:30:142
1100505994032,3cyclictest1104027-21grep07:25:291
1100505994031,5cyclictest1120211-21grep09:00:291
1100505994031,5cyclictest1120211-21grep09:00:291
110050599402,31cyclictest1121007-21unixbench_multi09:05:311
110050599401,33cyclictest1154289-21unixbench_singl12:20:281
110050599401,31cyclictest1104912-21grep07:30:301
1100502994033,4cyclictest0-21swapper/012:20:290
1100502994032,4cyclictest0-21swapper/010:15:170
110050299401,3cyclictest0-21swapper/011:30:290
110050299401,37cyclictest0-21swapper/011:25:190
1100507993931,5cyclictest14-21rcu_preempt10:20:292
1100507993924,8cyclictest0-21swapper/210:45:272
1100507993922,13cyclictest311ktimers/207:45:142
1100507993918,12cyclictest0-21swapper/212:05:292
1100505993928,8cyclictest0-21swapper/107:50:291
1100502993931,4cyclictest20650irq/252-8000000.ethernet08:45:280
1100502993924,13cyclictest0-21swapper/011:35:190
110050299391,4cyclictest1121089-21users09:05:320
110050299391,4cyclictest0-21swapper/009:10:230
110050299391,36cyclictest0-21swapper/012:35:020
110050299391,36cyclictest0-21swapper/010:05:030
110050299391,36cyclictest0-21swapper/009:00:180
110050299391,36cyclictest0-21swapper/009:00:180
110050799383,18cyclictest14-21rcu_preempt09:50:012
1100507993830,5cyclictest167550irq/134-8000000.ethernet-tx208:40:192
1100507993825,9cyclictest0-21swapper/209:10:182
1100507993825,8cyclictest1125243-21grep09:30:302
1100505993828,5cyclictest0-21swapper/108:20:221
1100502993834,2cyclictest0-21swapper/011:05:260
1100502993825,9cyclictest0-21swapper/008:30:290
1100502993825,8cyclictest0-21swapper/008:55:300
110050299381,35cyclictest0-21swapper/009:40:240
110050299381,35cyclictest0-21swapper/009:35:000
1100507993726,7cyclictest0-21swapper/212:15:282
1100507993723,10cyclictest0-21swapper/208:10:252
1100507993723,10cyclictest0-21swapper/208:10:252
1100507993722,7cyclictest0-21swapper/210:50:302
1100507993719,14cyclictest311ktimers/212:20:142
1100505993727,4cyclictest1146619-21unixbench_multi11:35:301
110050599371,3cyclictest1129491-21grep09:55:321
1100502993731,4cyclictest20850irq/208-8000000.ethernet08:10:200
1100502993731,4cyclictest20850irq/208-8000000.ethernet08:10:200
1100502993730,4cyclictest167350irq/118-8000000.ethernet-tx011:55:300
1100502993730,4cyclictest0-21swapper/009:50:120
1100502993730,4cyclictest0-21swapper/009:50:120
1100502993726,7cyclictest0-21swapper/008:20:300
110050299371,3cyclictest0-21swapper/007:10:160
110050299371,34cyclictest0-21swapper/009:20:170
1100507993627,5cyclictest0-21swapper/211:40:172
1100507993626,6cyclictest1121015-21grep09:05:312
1100507993625,7cyclictest0-21swapper/209:50:292
1100507993625,7cyclictest0-21swapper/209:50:292
1100507993621,10cyclictest311ktimers/211:05:152
110050599364,17cyclictest1132175-21kworker/u8:3+ext4-rsv-conversion10:15:011
1100505993624,5cyclictest0-21swapper/110:55:001
110050599362,3cyclictest1131234-21grep10:05:311
1100505993622,10cyclictest0-21swapper/108:05:201
110050599361,29cyclictest1111618-21grep08:10:281
110050599361,29cyclictest1111618-21grep08:10:281
1100502993626,6cyclictest0-21swapper/007:20:280
110050299361,33cyclictest0-21swapper/007:59:520
110050299361,33cyclictest0-21swapper/007:27:270
110050299361,2cyclictest1152069-21dropbear12:10:170
1100507993525,6cyclictest0-21swapper/207:35:292
1100507993522,10cyclictest311ktimers/210:15:172
1100507993520,12cyclictest311ktimers/207:30:152
1100505993527,5cyclictest1145044-21munin-plugin-st11:30:001
1100505993527,4cyclictest1147477-21grep11:40:281
1100505993527,4cyclictest1128604-21grep09:50:281
1100505993527,4cyclictest1128604-21grep09:50:281
110050599351,31cyclictest832-21systemd-network08:40:251
110050599351,28cyclictest0-21swapper/107:40:181
1100502993523,9cyclictest0-21swapper/010:20:290
1100507993424,7cyclictest0-21swapper/207:40:292
1100507993421,9cyclictest311ktimers/208:35:122
1100507993417,12cyclictest311ktimers/211:35:162
110050799341,28cyclictest1136387-21sshd10:36:182
1100505993428,3cyclictest1126925-21unixbench_multi09:40:281
1100505993423,5cyclictest0-21swapper/109:35:221
1100505993420,9cyclictest0-21swapper/108:15:221
110050599341,28cyclictest1127812-21grep09:45:301
1100507993325,6cyclictest0-21swapper/208:55:202
1100507993318,12cyclictest311ktimers/209:20:162
1100505993324,5cyclictest1143219-21head11:15:301
1100505993324,5cyclictest1143219-21head11:15:301
110050599332,3cyclictest1133778-21grep10:20:291
1100505993322,7cyclictest0-21swapper/107:10:291
1100505993321,7cyclictest0-21swapper/108:45:291
1100502993327,4cyclictest20850irq/208-8000000.ethernet07:50:120
1100507993224,4cyclictest0-21swapper/212:35:192
1100507993222,7cyclictest0-21swapper/207:10:282
1100507993220,8cyclictest1143998-21unixbench_multi11:20:292
1100507993213,13cyclictest311ktimers/209:55:152
1100505993222,6cyclictest0-21swapper/110:25:291
1100505993222,6cyclictest0-21swapper/110:25:281
110050599321,4cyclictest0-21swapper/112:10:001
1100507993126,4cyclictest14-21rcu_preempt07:25:182
1100507993122,5cyclictest0-21swapper/212:25:212
1100507993122,5cyclictest0-21swapper/212:25:212
1100507993119,8cyclictest1109403-21/usr/sbin/munin08:00:182
1100505993124,4cyclictest167450irq/126-8000000.ethernet-tx111:50:191
1100505993120,6cyclictest0-21swapper/109:25:271
1100507993022,5cyclictest0-21swapper/209:15:302
1100505993022,4cyclictest0-21swapper/112:30:221
1100507992919,7cyclictest0-21swapper/209:25:192
1100507992914,4cyclictest167550irq/134-8000000.ethernet-tx208:32:212
1100505992920,5cyclictest0-21swapper/110:15:311
1100505992918,7cyclictest0-21swapper/110:45:261
1100507992824,2cyclictest0-21swapper/210:25:182
1100507992824,2cyclictest0-21swapper/210:25:182
1100507992816,8cyclictest0-21swapper/210:05:302
1100505992821,4cyclictest0-21swapper/107:35:271
1100505992819,5cyclictest0-21swapper/110:40:291
1100505992816,5cyclictest0-21swapper/110:05:011
110050599281,25cyclictest0-21swapper/112:13:571
1100507992718,4cyclictest0-21swapper/210:55:162
1100505992721,4cyclictest0-21swapper/111:10:001
110050599271,24cyclictest0-21swapper/111:02:181
110050599271,24cyclictest0-21swapper/111:02:181
1100507992618,5cyclictest0-21swapper/207:10:012
1100507992618,5cyclictest0-21swapper/207:10:012
1100505992620,3cyclictest1134926-21/usr/sbin/munin10:30:181
1100505992517,4cyclictest0-21swapper/112:25:281
1100505992517,4cyclictest0-21swapper/112:25:281
1100505992515,7cyclictest1118235-21meminfo08:50:251
1100505992515,6cyclictest0-21swapper/108:25:191
1100505992416,6cyclictest0-21swapper/109:10:191
1100505992314,6cyclictest0-21swapper/107:20:261
1100505992113,5cyclictest0-21swapper/112:15:211
110050599176,6cyclictest0-21swapper/107:10:011
110050599176,6cyclictest0-21swapper/107:10:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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