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2024-07-27 - 04:03

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 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 Fri Jul 26, 2024 12:44:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
175656599108101,5cyclictest311ktimers/212:10:172
175656599841,34cyclictest30-21rcuc/208:45:192
175656499707,27cyclictest1774564-21cat08:55:011
1756561997029,35cyclictest0-21swapper/007:35:290
1756561996624,35cyclictest0-21swapper/012:30:280
175656199662,27cyclictest1765154-21unixbench_singl07:55:280
175656199651,2cyclictest0-21swapper/011:05:010
1756561996422,36cyclictest0-21swapper/008:30:010
1756561996421,35cyclictest21450irq/209-8000000.ethernet07:15:030
1756561996343,18cyclictest1805897-21munin-plugin-st12:00:000
1756561996343,18cyclictest1805897-21munin-plugin-st12:00:000
1756561996326,32cyclictest0-21swapper/010:30:270
1756565996220,9cyclictest1796757-21/usr/sbin/munin11:05:172
1756561996221,35cyclictest0-21swapper/008:05:170
175656199611,2cyclictest0-21swapper/012:15:020
175656199605,10cyclictest1775726-21cut09:00:210
1756561996028,27cyclictest0-21swapper/011:05:280
1756561996025,26cyclictest0-21swapper/008:40:170
1756561996023,32cyclictest0-21swapper/007:45:290
1756561996023,32cyclictest0-21swapper/007:45:290
1756565995813,21cyclictest32-21ksoftirqd/211:00:012
175656199583,6cyclictest1762400-21tail07:40:280
1756561995824,31cyclictest1763922-21grep07:50:230
1756561995823,31cyclictest21450irq/209-8000000.ethernet11:25:320
1756561995823,29cyclictest0-21swapper/009:55:240
1756561995818,30cyclictest0-21swapper/007:10:280
175656199581,4cyclictest1788128-21apt10:15:000
1756561995733,21cyclictest1767753-21munin-plugin-st08:15:000
1756561995723,30cyclictest0-21swapper/009:15:270
175656199571,4cyclictest1782629-21cut09:40:200
175656199571,4cyclictest1782629-21cut09:40:200
1756561995711,8cyclictest1811207-21gpg-connect-age12:30:010
175656199571,15cyclictest1779574-21grep09:20:310
1756561995625,23cyclictest0-21swapper/009:35:160
1756561995616,35cyclictest0-21swapper/011:20:260
1756561995616,10cyclictest0-21swapper/008:55:220
175656199561,14cyclictest1780414-21head09:25:280
175656199561,10cyclictest1771975-21lockfile-create08:40:010
1756561995543,7cyclictest1786436-21kworker/u8:0+events_power_efficient10:25:110
175656199551,24cyclictest0-21swapper/010:50:160
175656199548,9cyclictest1784287-21sh09:50:200
175656199545,10cyclictest1793977-21grep10:45:290
175656199543,7cyclictest1789759-21grep10:20:300
175656199542,13cyclictest1769368-21grep08:20:300
1756564995339,9cyclictest1782237-21sendmail09:40:001
175656199534,9cyclictest1804970-21grep11:50:290
1756561995332,17cyclictest0-21swapper/009:30:320
1756561995322,28cyclictest0-21swapper/011:10:270
1756561995320,4cyclictest1812812-21munin-run12:40:000
175656199531,24cyclictest0-21swapper/008:15:220
175656199531,24cyclictest0-21swapper/008:15:210
175656199529,8cyclictest0-21swapper/008:30:290
175656199523,13cyclictest1803297-21grep11:40:270
175656199523,13cyclictest1793137-21unixbench_singl10:40:270
1756561995222,3cyclictest0-21swapper/008:48:080
175656199521,5cyclictest1787291-21munin-run10:10:000
175656199521,5cyclictest1776538-21sshd09:05:190
175656199521,45cyclictest0-21swapper/009:10:270
175656199521,22cyclictest0-21swapper/007:25:110
1756564995132,12cyclictest231ktimers/110:15:121
175656199513,14cyclictest1795650-21grep10:55:280
1756561995117,5cyclictest131ktimers/008:55:010
1756564995011,6cyclictest1805888-21apt-get12:00:011
1756564995011,6cyclictest1805888-21apt-get12:00:011
1756561995033,13cyclictest0-21swapper/011:45:010
1756561995018,7cyclictest1758704-21/usr/sbin/munin07:20:310
175656199501,4cyclictest0-21swapper/010:35:190
175656199501,14cyclictest1807685-21latency_hist12:10:000
1756564994914,23cyclictest1780757-21/usr/sbin/munin09:30:211
175656199492,14cyclictest1809132-21ptp4l12:15:270
175656199491,22cyclictest0-21swapper/011:35:100
1756565994841,4cyclictest178850irq/135-8000000.ethernet-tx210:00:222
1756565994840,5cyclictest311ktimers/207:50:112
1756564994839,5cyclictest1760180-21munin-plugin-st07:30:001
1756561994823,2cyclictest0-21swapper/010:00:220
175656599470,41cyclictest30-21rcuc/211:35:172
175656499471,8cyclictest0-21swapper/111:05:001
175656199473,8cyclictest1806924-21grep12:05:010
175656199473,8cyclictest1806924-21grep12:05:010
1756561994716,3cyclictest0-21swapper/011:20:000
1756561994710,4cyclictest0-21swapper/008:00:280
1756561994710,4cyclictest0-21swapper/008:00:280
1756565994631,9cyclictest0-21swapper/207:25:192
1756565994620,16cyclictest0-21swapper/208:50:302
1756565994615,15cyclictest32-21ksoftirqd/208:15:012
1756564994639,3cyclictest1758486-21sendmail07:20:011
1756564994629,12cyclictest0-21swapper/110:50:001
175656199463,23cyclictest0-21swapper/007:30:310
175656199461,26cyclictest0-21swapper/009:45:200
1756565994532,8cyclictest1782129-21grep09:35:302
1756565994517,19cyclictest32-21ksoftirqd/210:50:012
1756561994534,8cyclictest1788871-21grep10:15:290
1756561994514,7cyclictest0-21swapper/011:30:260
1756565994435,5cyclictest0-21swapper/210:05:292
1756565994428,9cyclictest0-21swapper/211:40:272
1756565994426,8cyclictest0-21swapper/209:25:282
1756565994420,14cyclictest0-21swapper/210:25:282
1756564994434,5cyclictest1785600-21apt10:00:001
1756564994433,6cyclictest1779575-21grep09:20:311
1756564994422,9cyclictest0-21swapper/109:00:311
1756565994331,6cyclictest1768484-21grep08:15:282
1756565994331,6cyclictest1768484-21grep08:15:282
1756564994333,6cyclictest0-21swapper/109:45:011
1756564994333,6cyclictest0-21swapper/109:45:011
1756564994331,7cyclictest1757365-21munin-plugin-st07:14:591
1756565994228,9cyclictest0-21swapper/211:20:282
1756565994222,11cyclictest0-21swapper/212:25:252
1756564994231,4cyclictest0-21swapper/112:00:301
1756564994231,4cyclictest0-21swapper/112:00:291
1756564994210,5cyclictest1798230-21apt-get11:15:011
1756565994128,8cyclictest0-21swapper/212:00:012
1756565994128,8cyclictest0-21swapper/212:00:012
1756565994124,12cyclictest1756556-21cyclictest11:45:152
1756564994133,4cyclictest1768586-21cron08:20:001
1756564994133,4cyclictest1768586-21cron08:20:001
1756564994131,6cyclictest0-21swapper/108:00:001
1756561994135,4cyclictest21450irq/209-8000000.ethernet12:20:320
1756565994031,5cyclictest311ktimers/211:30:202
1756565994022,9cyclictest0-21swapper/208:30:292
175656499405,2cyclictest0-21swapper/107:40:011
1756564994030,5cyclictest1759230-21grep07:20:311
1756564994027,9cyclictest0-21swapper/110:30:001
1756564994020,13cyclictest231ktimers/110:20:101
175656499401,9cyclictest0-21swapper/112:20:011
175656599399,13cyclictest32-21ksoftirqd/209:55:012
1756565993927,5cyclictest311ktimers/210:30:272
1756565993927,3cyclictest0-21swapper/211:55:012
1756565993925,9cyclictest311ktimers/210:10:182
1756565993925,9cyclictest311ktimers/208:20:122
1756565993925,9cyclictest0-21swapper/207:10:262
1756564993929,5cyclictest0-21swapper/111:20:281
1756564993927,7cyclictest14-21rcu_preempt07:35:001
175656599384,21cyclictest32-21ksoftirqd/210:25:002
1756565993831,4cyclictest14-21rcu_preempt12:10:002
1756565993831,4cyclictest14-21rcu_preempt09:05:242
1756565993830,4cyclictest0-21swapper/208:25:302
1756565993829,4cyclictest0-21swapper/207:40:312
1756565993827,7cyclictest1777637-21phc2sys09:10:252
1756565993826,7cyclictest0-21swapper/210:15:272
1756565993823,9cyclictest1266-21cron12:20:002
1756565993823,8cyclictest30-21rcuc/208:55:242
1756565993822,10cyclictest311ktimers/209:20:242
1756565993820,10cyclictest0-21swapper/208:35:212
175656499383,29cyclictest0-21swapper/109:50:221
175656599377,5cyclictest30-21rcuc/212:35:212
1756565993727,5cyclictest0-21swapper/210:40:272
175656499373,21cyclictest1780697-21latency_hist09:30:021
1756564993729,3cyclictest22-21rcuc/111:25:191
175656499371,5cyclictest0-21swapper/110:15:011
1756565993627,5cyclictest311ktimers/209:40:262
1756565993627,5cyclictest311ktimers/209:40:262
1756565993625,7cyclictest0-21swapper/207:30:302
1756565993625,4cyclictest311ktimers/208:05:092
1756565993623,9cyclictest0-21swapper/209:00:312
1756565993622,9cyclictest0-21swapper/207:20:012
1756564993625,6cyclictest0-21swapper/110:00:291
1756564993622,9cyclictest0-21swapper/111:35:001
175656499361,31cyclictest1766643-21ps08:05:241
175656499361,30cyclictest0-21swapper/109:15:261
1756565993525,7cyclictest311ktimers/207:55:102
1756565993522,8cyclictest0-21swapper/210:50:222
1756565993522,7cyclictest30-21rcuc/208:00:232
1756565993522,7cyclictest30-21rcuc/208:00:232
1756565993520,8cyclictest30-21rcuc/210:55:222
1756565993519,8cyclictest0-21swapper/212:35:012
1756564993525,6cyclictest0-21swapper/108:35:271
1756564993525,5cyclictest0-21swapper/107:40:311
1756564993523,4cyclictest0-21swapper/112:30:011
1756564993521,8cyclictest0-21swapper/110:55:281
175656499351,4cyclictest0-21swapper/109:15:011
1756564993514,14cyclictest231ktimers/110:40:091
1756565993425,4cyclictest14-21rcu_preempt12:00:212
1756565993425,4cyclictest14-21rcu_preempt12:00:212
1756565993424,5cyclictest0-21swapper/208:40:142
1756565993423,4cyclictest14-21rcu_preempt09:45:202
1756565993418,4cyclictest1785578-21kworker/u8:4-ext4-rsv-conversion10:40:012
175656599341,28cyclictest0-21swapper/207:40:002
1756564993424,6cyclictest1776464-21/usr/sbin/munin09:05:251
1756564993424,5cyclictest0-21swapper/108:10:241
175656499341,2cyclictest0-21swapper/110:10:011
175656499341,27cyclictest0-21swapper/111:40:101
1756565993324,6cyclictest0-21swapper/207:20:122
1756565993320,7cyclictest311ktimers/211:15:022
175656499335,13cyclictest1811331-21/usr/sbin/munin12:30:181
175656499332,3cyclictest1807651-21users12:05:291
1756564993322,7cyclictest0-21swapper/111:50:291
1756564993321,8cyclictest1803726-21sh11:45:191
175656499331,26cyclictest1772174-21/usr/sbin/munin08:40:191
175656499331,26cyclictest0-21swapper/110:35:121
175656599322,9cyclictest866-21systemd-network09:32:222
1756565993226,2cyclictest1785080-21fschecks_count09:55:182
1756565993221,6cyclictest311ktimers/207:45:172
1756565993221,6cyclictest311ktimers/207:45:172
1756564993223,5cyclictest1775409-21sh09:00:001
1756565993123,6cyclictest311ktimers/212:20:192
1756564993116,10cyclictest0-21swapper/108:25:301
175656499311,5cyclictest1765699-21irqstats08:00:241
175656499311,5cyclictest1765699-21irqstats08:00:231
175656499311,2cyclictest0-21swapper/111:20:001
175656499311,26cyclictest0-21swapper/112:10:171
175656599306,17cyclictest1800217-21/usr/sbin/munin11:25:192
1756565993025,3cyclictest1778320-21fschecks_time09:15:192
1756565993018,9cyclictest30-21rcuc/207:10:012
175656499309,16cyclictest231ktimers/112:20:121
1756564993021,6cyclictest0-21swapper/111:05:291
175656499301,3cyclictest0-21swapper/108:20:181
1756564992915,9cyclictest0-21swapper/110:50:211
1756561992916,10cyclictest0-21swapper/007:10:010
1756564992819,5cyclictest0-21swapper/107:45:191
1756564992819,5cyclictest0-21swapper/107:45:191
1756565992721,5cyclictest311ktimers/211:15:032
1756564992722,3cyclictest0-21swapper/111:37:191
1756564992719,6cyclictest1773343-21grep08:45:271
1756564992719,5cyclictest0-21swapper/109:50:001
1756564992714,9cyclictest0-21swapper/110:30:181
1756564992619,5cyclictest0-21swapper/112:40:011
1756564992615,6cyclictest0-21swapper/107:50:311
1756564992515,7cyclictest0-21swapper/108:30:151
1756564992112,7cyclictest0-21swapper/107:10:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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