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2026-06-24 - 21:59

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 the 792 highest latencies:
System rackeslot6s.osadl.org (updated Wed Jun 24, 2026 12:44:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1254186996254,5cyclictest0-21swapper/208:35:002
1254185995952,4cyclictest231ktimers/111:25:011
1254185995952,4cyclictest231ktimers/111:25:011
1254185995946,5cyclictest1257813-21munin-plugin-st07:30:011
1254185995734,12cyclictest0-21swapper/107:15:021
1254185995637,11cyclictest231ktimers/107:50:111
125418299557,17cyclictest15-21rcuc/011:50:010
1254185995441,9cyclictest1283410-21latency_hist10:00:001
125418599542,16cyclictest231ktimers/112:15:001
1254182995246,2cyclictest0-21swapper/011:10:120
1254182995241,7cyclictest1262125-21munin-plugin-st07:55:000
125418599516,39cyclictest0-21swapper/112:30:021
1254185995144,4cyclictest1274794-21munin-plugin-st09:10:001
1254185995141,6cyclictest1310607-21run-parts12:39:591
1254182995043,4cyclictest0-21swapper/010:30:150
1254185994929,10cyclictest1270505-21grep08:40:281
1254182994940,5cyclictest20650irq/252-8000000.ethernet08:30:240
1254185994842,4cyclictest0-21swapper/111:05:191
1254185994829,13cyclictest231ktimers/110:25:111
125418299485,8cyclictest0-21swapper/010:25:010
1254182994841,4cyclictest167350irq/118-8000000.ethernet-tx010:55:220
1254182994841,4cyclictest167350irq/118-8000000.ethernet-tx009:55:180
1254182994839,5cyclictest167350irq/118-8000000.ethernet-tx010:50:290
125418599476,30cyclictest24-21ksoftirqd/108:35:001
1254185994731,10cyclictest0-21swapper/112:20:291
1254186994634,8cyclictest1275538-21unixbench_multi09:10:272
1254186994633,9cyclictest1283-21cron11:15:002
1254185994632,9cyclictest1297661-21grep11:20:281
1254185994630,11cyclictest231ktimers/107:15:101
1254185994628,11cyclictest1282529-21grep09:50:281
1254182994639,3cyclictest0-21swapper/010:45:010
1254182994638,4cyclictest167350irq/118-8000000.ethernet-tx012:35:210
1254182994635,6cyclictest15-21rcuc/011:05:290
1254182994622,21cyclictest131ktimers/009:00:280
1254182994618,23cyclictest1272345-21latency_hist08:55:010
1254182994618,23cyclictest1272345-21latency_hist08:55:010
125418699458,29cyclictest0-21swapper/211:05:242
1254185994536,5cyclictest0-21swapper/109:00:271
1254185994533,7cyclictest1275572-21grep09:10:281
125418599451,9cyclictest0-21swapper/107:45:011
1254185994516,7cyclictest1302994-21rm11:55:011
1254182994538,4cyclictest0-21swapper/009:45:120
125418299451,8cyclictest0-21swapper/010:20:010
1254185994432,7cyclictest0-21swapper/112:05:001
1254185994429,8cyclictest0-21swapper/112:10:011
1254185994424,10cyclictest0-21swapper/109:30:261
125418299446,34cyclictest0-21swapper/007:40:210
1254182994435,4cyclictest1289826-21memory10:35:250
125418299441,36cyclictest0-21swapper/010:30:020
1254186994331,8cyclictest1259500-21sendmail07:40:002
125418699431,7cyclictest0-21swapper/211:25:022
125418699431,7cyclictest0-21swapper/211:25:022
1254185994335,5cyclictest1266350-21run-parts08:19:591
1254185994332,6cyclictest14-21rcu_preempt08:10:211
1254185994330,7cyclictest0-21swapper/110:00:291
1254182994335,4cyclictest1264570-21grep08:05:300
125418299433,4cyclictest1276995-21memory09:20:260
1254182994332,8cyclictest0-21swapper/012:05:300
1254182994325,9cyclictest1256973-21munin-plugin-st07:25:010
125418299431,39cyclictest1660-21snmpd11:28:380
125418299431,39cyclictest1660-21snmpd11:28:380
125418599426,18cyclictest22-21rcuc/110:45:011
1254185994234,4cyclictest1296930-21sendmail11:20:001
1254185994232,5cyclictest0-21swapper/108:50:291
1254185994232,5cyclictest0-21swapper/108:50:281
1254185994230,8cyclictest231ktimers/109:40:101
1254185994224,9cyclictest0-21swapper/107:20:201
1254185994224,10cyclictest0-21swapper/109:35:281
125418599421,4cyclictest0-21swapper/112:35:011
125418599421,4cyclictest0-21swapper/112:35:011
1254182994238,2cyclictest0-21swapper/011:05:010
1254182994234,4cyclictest0-21swapper/008:45:160
125418299422,5cyclictest1254413-21df_inode07:10:170
125418299422,4cyclictest1306386-21munin-run12:15:000
1254182994224,16cyclictest0-21swapper/012:20:280
125418299421,5cyclictest1255402-21cut07:15:050
125418299421,39cyclictest0-21swapper/011:55:200
125418299421,36cyclictest1284814-21phc2sys-jitter10:05:280
1254186994132,5cyclictest1281640-21munin-plugin-st09:50:002
1254186994130,6cyclictest0-21swapper/212:00:302
1254185994123,10cyclictest0-21swapper/107:45:271
125418299412,4cyclictest1291293-21diskstats10:45:170
125418299412,4cyclictest1279929-21sshd09:38:430
1254186994028,8cyclictest0-21swapper/209:40:302
1254186994022,12cyclictest0-21swapper/208:45:022
1254185994031,5cyclictest0-21swapper/108:25:301
1254185994027,6cyclictest0-21swapper/110:35:281
125418599401,4cyclictest0-21swapper/111:40:021
1254182994033,4cyclictest167350irq/118-8000000.ethernet-tx007:45:200
1254182994032,5cyclictest0-21swapper/008:20:280
125418299402,3cyclictest1281998-21diskstats09:50:180
125418299402,36cyclictest0-21swapper/009:10:240
1254186993932,5cyclictest1296854-21unixbench_singl11:15:292
1254185993927,9cyclictest1273103-21sendmail09:00:001
1254185993926,6cyclictest231ktimers/112:15:211
1254185993925,7cyclictest0-21swapper/108:50:011
1254185993924,9cyclictest1269174-21grep08:35:201
1254185993920,10cyclictest0-21swapper/110:20:251
125418599391,3cyclictest0-21swapper/108:10:011
1254182993935,2cyclictest0-21swapper/008:00:160
125418299393,29cyclictest15-21rcuc/011:25:000
1254182993932,4cyclictest1299915-21irqstats11:35:230
1254182993932,4cyclictest1257809-21sh07:30:000
1254182993929,5cyclictest20650irq/252-8000000.ethernet11:15:280
1254182993925,10cyclictest1309717-21grep12:30:300
1254182993925,10cyclictest1309717-21grep12:30:300
125418299392,35cyclictest0-21swapper/011:40:120
125418299391,36cyclictest0-21swapper/009:40:170
1254186993831,4cyclictest167550irq/134-8000000.ethernet-tx207:20:272
1254186993830,5cyclictest0-21swapper/211:59:592
1254186993829,4cyclictest0-21swapper/209:35:022
1254186993827,5cyclictest0-21swapper/212:20:282
125418699381,31cyclictest0-21swapper/211:55:002
1254185993828,4cyclictest0-21swapper/108:00:291
1254185993826,6cyclictest0-21swapper/111:00:261
1254185993822,10cyclictest0-21swapper/111:45:201
1254185993815,16cyclictest274-21systemd-journal08:25:001
1254182993832,4cyclictest0-21swapper/010:10:180
125418299382,23cyclictest1265478-21kworker/u8:2+events_power_efficient08:30:010
1254182993822,12cyclictest0-21swapper/009:30:280
1254182993814,14cyclictest14-21rcu_preempt08:40:010
125418299381,3cyclictest1258013-21apt-get07:30:120
125418299381,3cyclictest1258013-21apt-get07:30:110
125418299381,35cyclictest0-21swapper/007:55:260
1254186993730,5cyclictest1291025-21munin-plugin-st10:45:012
125418699371,29cyclictest1267401-21/usr/sbin/munin08:25:272
1254185993727,5cyclictest0-21swapper/110:15:211
1254185993721,10cyclictest1278073-21grep09:25:281
125418299374,25cyclictest1254271-21latency_hist07:10:010
1254182993731,4cyclictest0-21swapper/010:04:500
1254182993730,4cyclictest0-21swapper/012:00:130
1254182993730,4cyclictest0-21swapper/011:50:130
125418299371,34cyclictest0-21swapper/009:15:150
125418299371,34cyclictest0-21swapper/009:15:150
125418299371,34cyclictest0-21swapper/008:40:140
125418299371,34cyclictest0-21swapper/007:35:170
1254186993629,3cyclictest1293549-21sendmail11:00:002
1254186993625,7cyclictest0-21swapper/212:30:292
1254186993625,7cyclictest0-21swapper/212:30:292
1254186993622,10cyclictest0-21swapper/212:15:192
1254185993626,6cyclictest1291809-21grep10:45:301
1254185993623,9cyclictest231ktimers/110:05:221
125418599361,2cyclictest0-21swapper/109:25:011
1254182993631,2cyclictest0-21swapper/011:30:100
1254182993631,2cyclictest0-21swapper/008:10:130
125418299361,3cyclictest0-21swapper/012:15:280
1254186993527,4cyclictest167550irq/134-8000000.ethernet-tx207:45:222
1254186993524,7cyclictest0-21swapper/210:35:282
1254186993523,7cyclictest0-21swapper/211:40:192
125418699351,28cyclictest0-21swapper/207:15:062
125418599358,3cyclictest0-21swapper/111:45:021
125418599355,24cyclictest231ktimers/111:10:421
1254185993526,5cyclictest1262324-21/usr/sbin/munin07:55:131
1254185993523,6cyclictest22-21rcuc/107:10:011
125418599351,2cyclictest0-21swapper/111:00:011
125418299351,3cyclictest0-21swapper/008:18:090
125418299351,26cyclictest1278169-21latency_hist09:30:010
1254186993420,10cyclictest0-21swapper/207:40:292
1254185993424,8cyclictest231ktimers/109:15:111
1254185993424,8cyclictest231ktimers/109:15:111
1254185993424,7cyclictest231ktimers/111:30:131
1254185993423,6cyclictest1281549-21grep09:45:281
1254185993422,8cyclictest0-21swapper/110:15:021
125418599341,4cyclictest0-21swapper/110:35:011
125418299342,6cyclictest1308815-21unixbench_multi12:25:280
125418299341,31cyclictest0-21swapper/008:55:110
1254186993325,4cyclictest0-21swapper/208:15:282
1254186993325,4cyclictest0-21swapper/207:55:242
1254186993322,7cyclictest1255033-21latency_hist07:15:012
125418699331,5cyclictest1272984-21unixbench_multi08:55:272
125418699331,28cyclictest1310538-21unixbench_singl12:35:272
1254185993326,5cyclictest231ktimers/111:55:041
1254185993325,4cyclictest14-21rcu_preempt10:50:251
1254182993327,4cyclictest0-21swapper/009:05:160
1254186993224,5cyclictest0-21swapper/211:00:292
1254186993224,5cyclictest0-21swapper/208:50:282
1254186993224,5cyclictest0-21swapper/208:50:282
1254186993223,6cyclictest1286430-21kernelversion10:15:232
1254185993222,7cyclictest231ktimers/107:35:151
1254185993220,6cyclictest0-21swapper/107:30:181
1254185993220,6cyclictest0-21swapper/107:30:181
1254186993122,4cyclictest1254301-21latency_hist07:10:012
1254186993119,8cyclictest0-21swapper/208:00:212
125418699311,3cyclictest0-21swapper/210:30:302
125418699311,28cyclictest1261481-21/usr/sbin/munin07:50:172
1254186993026,2cyclictest0-21swapper/210:10:232
1254186993021,7cyclictest311ktimers/210:00:422
1254186993021,4cyclictest0-21swapper/209:00:192
1254186993019,5cyclictest1287600-21grep10:20:272
125418699301,26cyclictest1282213-21kernelversion09:50:232
1254186992921,5cyclictest0-21swapper/209:15:292
1254186992921,5cyclictest0-21swapper/209:15:282
1254186992912,10cyclictest1287847-21apt-get10:25:122
125418699288,10cyclictest0-21swapper/209:10:012
1254186992824,2cyclictest0-21swapper/211:30:282
1254186992821,4cyclictest0-21swapper/209:35:242
1254186992819,7cyclictest1282767-21/usr/sbin/munin09:55:182
1254186992818,8cyclictest1297713-21unixbench_singl11:20:282
1254186992818,8cyclictest0-21swapper/208:50:002
125418699281,2cyclictest1257174-21apt-get07:25:142
1254186992812,8cyclictest0-21swapper/212:10:022
125418699281,25cyclictest0-21swapper/208:35:272
1254186992721,4cyclictest0-21swapper/209:25:122
1254186992720,5cyclictest1292220-21dropbear10:50:212
1254186992720,5cyclictest1276692-21/usr/sbin/munin09:20:272
1254186992720,4cyclictest0-21swapper/208:15:002
1254186992720,3cyclictest0-21swapper/208:05:222
1254186992716,7cyclictest0-21swapper/208:20:282
125418699271,3cyclictest0-21swapper/210:05:172
125418699271,24cyclictest0-21swapper/210:45:172
1254186992617,5cyclictest1258613-21grep07:30:282
1254186992617,5cyclictest1258613-21grep07:30:282
1254186992616,7cyclictest311ktimers/211:45:102
1254186992518,3cyclictest0-21swapper/212:25:262
1254186992513,5cyclictest0-21swapper/212:15:012
1254186992213,3cyclictest1300437-21latency_hist11:40:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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