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2026-05-03 - 00:06

OSADL QA Farm on Real-time of Mainline Linux

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

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 376 highest latencies:
System rackeslot4s.osadl.org (updated Sat May 02, 2026 12:44:06)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3100271994843,3cyclictest3141389-21apt-get07:50:000
3100273994743,3cyclictest3343408-21latency_hist11:05:011
3100271994442,1cyclictest3343445-21fwupd11:05:010
3100281994239,2cyclictest3203525-21kworker/u8:1+flush-259:008:55:253
3100281994135,4cyclictest3167796-21/usr/sbin/munin08:15:143
3100276994138,2cyclictest3121042-21kworker/u8:0+events_unbound07:55:002
3100273994138,2cyclictest3281347-21kworker/u8:2+events_unbound10:15:131
3100273994137,3cyclictest3121042-21kworker/u8:0+events_unbound08:05:231
3100276994037,2cyclictest3203525-21kworker/u8:1+events_unbound09:35:222
3100273994037,2cyclictest3203525-21kworker/u8:1+events_unbound10:05:001
3100276993935,3cyclictest3142050-21kworker/u8:1+flush-259:008:00:252
3100276993934,4cyclictest3131093-21latency_hist07:40:012
3100273993933,4cyclictest3266267-21latency_hist09:50:011
3100273993932,5cyclictest3114781-21ntpq07:20:221
3100281993830,5cyclictest3244390-21ntpq09:25:223
3100276993734,2cyclictest3219243-21kworker/u8:4+flush-259:009:05:262
3100276993733,3cyclictest3234908-21kworker/u8:0+events_unbound09:20:012
3100273993734,2cyclictest3121042-21kworker/u8:0+flush-259:007:55:211
3100281993631,3cyclictest3214118-21/usr/sbin/munin09:00:223
3100276993633,2cyclictest3396116-21kworker/u8:1+events_unbound12:10:242
3100273993631,4cyclictest3235159-21apt-get09:20:121
3100271993633,2cyclictest3396116-21kworker/u8:1+flush-259:012:10:250
3100273993527,3cyclictest3281347-21kworker/u8:2+events_unbound10:05:221
3100276993431,2cyclictest3203525-21kworker/u8:1+flush-259:008:55:212
3100276993431,2cyclictest3177882-21kworker/u8:0+flush-259:009:05:002
3100276993431,2cyclictest3121042-21kworker/u8:0+events_unbound08:05:172
3100273993431,2cyclictest3219243-21kworker/u8:4+events_unbound09:05:251
3100276993330,2cyclictest3203525-21kworker/u8:1+flush-259:009:25:012
3100273993330,2cyclictest3152123-21kworker/u8:2+flush-259:008:15:001
3100273993330,2cyclictest3121042-21kworker/u8:0+flush-259:007:40:001
3100273993328,3cyclictest3426553-21kworker/u8:0+flush-259:012:30:151
3100281993228,3cyclictest3157485-21kworker/u8:3+flush-259:008:45:053
3100273993229,2cyclictest3296928-21kworker/u8:1+flush-259:010:20:231
3100271993225,5cyclictest3151248-21ntpq07:55:210
3100281993128,2cyclictest3256192-21kworker/u8:3+flush-259:009:55:163
3100276993128,2cyclictest3256192-21kworker/u8:3+flush-259:010:00:242
3100276993127,3cyclictest3157485-21kworker/u8:3+flush-259:008:15:202
3100273993128,2cyclictest3203525-21kworker/u8:1+flush-259:008:50:251
3100276993028,1cyclictest3256192-21kworker/u8:3+flush-259:009:45:152
3100273993027,2cyclictest3219243-21kworker/u8:4+flush-259:009:15:191
3100276992925,3cyclictest3281347-21kworker/u8:2+events_unbound10:10:232
3100273992926,2cyclictest3281347-21kworker/u8:2+flush-259:010:25:261
3100273992926,2cyclictest3256192-21kworker/u8:3+flush-259:009:50:181
3100273992926,2cyclictest3203525-21kworker/u8:1+events_unbound09:25:131
3100271992926,2cyclictest3095117-21kworker/u8:3+flush-259:007:10:250
3100271992925,3cyclictest3296928-21kworker/u8:1+flush-259:010:35:210
3100276992825,2cyclictest3256192-21kworker/u8:3+flush-259:009:50:202
3100276992824,3cyclictest3353804-21kworker/u8:3+events_unbound11:55:202
3100273992825,3cyclictest3281347-21kworker/u8:2+events_unbound11:20:241
3100273992825,2cyclictest3177882-21kworker/u8:0+flush-259:009:00:001
3100273992824,3cyclictest3296928-21kworker/u8:1+events_unbound10:45:221
3100271992825,2cyclictest3256192-21kworker/u8:3+events_unbound09:55:140
3100271992825,2cyclictest3157485-21kworker/u8:3+flush-259:008:30:240
3100276992723,3cyclictest3327745-21kworker/u8:0+events_unbound10:51:552
3100276992723,3cyclictest3296928-21kworker/u8:1+flush-259:010:40:242
3100276992723,3cyclictest3296928-21kworker/u8:1+flush-259:010:40:232
3100276992723,3cyclictest3296928-21kworker/u8:1+events_unbound10:20:192
3100273992724,2cyclictest3327745-21kworker/u8:0+flush-259:010:55:201
3100273992724,2cyclictest3157485-21kworker/u8:3+events_unbound08:20:201
3100273992720,5cyclictest509-21rs:main1
3100271992724,2cyclictest3327745-21kworker/u8:0+flush-259:012:15:240
3100271992724,2cyclictest3281347-21kworker/u8:2+flush-259:010:55:200
3100271992724,2cyclictest3234908-21kworker/u8:0+flush-259:009:49:590
3100271992723,3cyclictest3281347-21kworker/u8:2+flush-259:011:50:150
3100271992723,3cyclictest3157485-21kworker/u8:3+events_unbound08:20:150
3100281992623,2cyclictest3095117-21kworker/u8:3+flush-259:007:15:173
3100276992623,2cyclictest3421126-21kworker/u8:2+events_unbound12:20:142
3100276992623,2cyclictest3142050-21kworker/u8:1+events_unbound07:55:222
3100273992623,2cyclictest3281347-21kworker/u8:2+events_unbound10:50:021
3100273992623,2cyclictest3157485-21kworker/u8:3+flush-259:008:15:151
3100273992623,2cyclictest3121042-21kworker/u8:0+flush-259:007:35:001
3100271992623,2cyclictest3234908-21kworker/u8:0+events_unbound09:40:010
3100271992623,2cyclictest3203525-21kworker/u8:1+flush-259:008:50:210
3100281992519,4cyclictest252-21systemd-journal10:04:553
3100276992522,2cyclictest3296928-21kworker/u8:1+events_unbound10:45:152
3100276992522,2cyclictest3234908-21kworker/u8:0+events_unbound09:40:122
3100276992522,2cyclictest3095117-21kworker/u8:3+flush-259:007:30:242
3100276992521,3cyclictest3421126-21kworker/u8:2+flush-259:012:25:212
3100276992519,2cyclictest3203525-21kworker/u8:1+events_unbound08:50:232
3100273992520,4cyclictest3400897-21apt-get12:00:121
3100273992520,4cyclictest3390541-21apt-get11:50:111
3100271992522,2cyclictest76485-21kworker/u8:2+events_unbound07:20:240
3100281992421,2cyclictest3177882-21kworker/u8:0+flush-259:008:35:003
3100276992420,3cyclictest3281347-21kworker/u8:2+flush-259:010:05:152
3100276992420,3cyclictest3188396-21apt-get08:35:112
3100273992421,2cyclictest3353804-21kworker/u8:3+flush-259:011:30:211
3100273992421,2cyclictest3327745-21kworker/u8:0+flush-259:012:10:161
3100273992420,3cyclictest3119944-21ntpq07:25:221
3100273992419,3cyclictest252-21systemd-journal09:10:541
3100271992420,3cyclictest3354024-21apt-get11:15:120
3100271992417,5cyclictest3435975-21ntpq12:30:200
3100276992319,3cyclictest3157485-21kworker/u8:3+flush-259:008:30:002
3100273992321,2cyclictest3281347-21kworker/u8:2+events_unbound10:10:211
3100273992320,2cyclictest3327745-21kworker/u8:0+flush-259:012:15:211
3100273992320,2cyclictest3095117-21kworker/u8:3+events_unbound07:10:211
3100273992319,3cyclictest3348868-21apt-get11:10:101
3100273992319,3cyclictest3142050-21kworker/u8:1+flush-259:007:50:151
3100271992319,3cyclictest3296928-21kworker/u8:1+flush-259:010:45:200
3100281992219,2cyclictest3219243-21kworker/u8:4+flush-259:009:15:143
3100281992217,3cyclictest3157485-21kworker/u8:3+events_unbound08:25:193
3100276992219,2cyclictest3353804-21kworker/u8:3+flush-259:011:30:192
3100276992219,2cyclictest3353804-21kworker/u8:3+events_unbound11:35:142
3100276992219,2cyclictest3219243-21kworker/u8:4+flush-259:009:10:222
3100276992219,2cyclictest3131137-21kworker/u8:2+flush-259:007:40:552
3100276992219,2cyclictest3131137-21kworker/u8:2+flush-259:007:40:552
3100273992219,2cyclictest3421126-21kworker/u8:2+flush-259:012:20:221
3100273992219,2cyclictest3157485-21kworker/u8:3+flush-259:008:30:001
3100273992218,3cyclictest3234908-21kworker/u8:0+events_unbound09:30:201
3100273992218,3cyclictest3177882-21kworker/u8:0+events_unbound08:30:171
3100271992219,2cyclictest3256192-21kworker/u8:3+events_unbound10:00:140
3100271992219,2cyclictest3255567-21gpgv09:39:590
3100271992218,3cyclictest76485-21kworker/u8:2+events_unbound07:25:160
3100281992119,1cyclictest3157485-21kworker/u8:3+events_unbound08:20:243
3100281992118,2cyclictest3281347-21kworker/u8:2+events_unbound11:45:143
3100281992117,3cyclictest3296928-21kworker/u8:1+flush-259:010:45:553
3100281992117,3cyclictest3245509-21apt-get09:30:133
3100281992117,3cyclictest3141562-21cat07:50:013
3100281992117,2cyclictest3219243-21kworker/u8:4+events_unbound09:10:183
3100276992118,2cyclictest3353804-21kworker/u8:3+events_unbound11:50:152
3100276992118,2cyclictest3100490-21apt-get07:10:122
3100276992117,3cyclictest3364360-21apt-get11:25:112
3100273992119,1cyclictest0-21swapper/112:35:181
3100273992118,2cyclictest3121042-21kworker/u8:0+events_unbound08:00:191
3100271992118,2cyclictest3421126-21kworker/u8:2+flush-259:012:25:160
3100271992118,2cyclictest3281347-21kworker/u8:2+events_unbound10:30:140
3100271992117,3cyclictest3353804-21kworker/u8:3+events_unbound11:45:410
3100281992016,3cyclictest3157485-21kworker/u8:3+events_unbound08:14:583
3100276992017,2cyclictest76485-21kworker/u8:2+flush-259:007:25:252
3100276992017,2cyclictest3281347-21kworker/u8:2+flush-259:010:55:142
3100276992017,2cyclictest3234908-21kworker/u8:0+flush-259:009:25:182
3100276992017,2cyclictest3167582-21kworker/u8:1+events_unbound08:24:542
3100276992016,3cyclictest3152123-21kworker/u8:2+events_unbound08:10:142
3100276992016,3cyclictest3131137-21kworker/u8:2+flush-259:007:45:242
3100273992017,2cyclictest3281347-21kworker/u8:2+flush-259:011:40:151
3100273992017,2cyclictest3281347-21kworker/u8:2+flush-259:011:15:241
3100273992017,2cyclictest3203525-21kworker/u8:1+events_unbound10:00:001
3100271992017,2cyclictest3396116-21kworker/u8:1+events_unbound12:35:240
3100271992017,2cyclictest3281347-21kworker/u8:2+flush-259:010:45:000
3100271992017,2cyclictest3281347-21kworker/u8:2+flush-259:010:45:000
3100271992017,2cyclictest3234908-21kworker/u8:0+events_unbound09:25:210
3100271992016,3cyclictest3177882-21kworker/u8:0+events_unbound08:46:550
3100271992016,3cyclictest3142050-21kworker/u8:1+events_unbound08:02:560
3100281991917,2cyclictest3234908-21kworker/u8:0+events_unbound09:40:143
3100281991916,2cyclictest3353804-21kworker/u8:3+flush-259:012:20:203
3100281991916,2cyclictest3203525-21kworker/u8:1+events_unbound09:54:563
3100281991916,2cyclictest3142050-21kworker/u8:1+flush-259:007:50:113
3100281991915,3cyclictest76485-21kworker/u8:2+events_unbound07:25:183
3100281991915,3cyclictest3296928-21kworker/u8:1+flush-259:010:20:183
3100281991914,4cyclictest3400631-21latency_hist12:00:003
3100276991916,2cyclictest3384694-21gpgv11:45:002
3100276991916,2cyclictest3281347-21kworker/u8:2+events_unbound11:15:162
3100276991916,2cyclictest3281347-21kworker/u8:2+events_unbound11:00:272
3100276991916,2cyclictest3256192-21kworker/u8:3+events_unbound09:55:212
3100276991916,2cyclictest3177882-21kworker/u8:0+flush-259:008:30:152
3100276991916,2cyclictest3157485-21kworker/u8:3+events_unbound08:45:262
3100276991915,3cyclictest3353804-21kworker/u8:3+events_unbound11:45:512
3100276991915,3cyclictest3353756-21latency_hist11:15:002
3100276991914,4cyclictest3442037-21latency_hist12:40:002
3100273991916,2cyclictest3234908-21kworker/u8:0+flush-259:009:40:181
3100273991916,2cyclictest3157485-21kworker/u8:3+flush-259:008:45:051
3100273991916,2cyclictest3131137-21kworker/u8:2+events_unbound07:45:181
3100271991917,1cyclictest3157485-21kworker/u8:3+events_unbound08:40:020
3100281991815,2cyclictest3281347-21kworker/u8:2+flush-259:010:08:563
3100281991815,2cyclictest3281347-21kworker/u8:2+events_unbound11:50:233
3100281991814,3cyclictest3396116-21kworker/u8:1+flush-259:012:00:213
3100281991814,3cyclictest3327745-21kworker/u8:0+events_unbound10:58:563
3100281991814,3cyclictest3219243-21kworker/u8:4+flush-259:009:05:203
3100281991814,3cyclictest3203525-21kworker/u8:1+events_unbound09:35:133
3100276991815,2cyclictest3281347-21kworker/u8:2+events_unbound10:15:242
3100271991815,2cyclictest3157485-21kworker/u8:3+events_unbound08:25:230
3100271991814,3cyclictest3384923-21store11:45:010
3100271991814,3cyclictest3353804-21kworker/u8:3+flush-259:011:36:070
3100271991814,3cyclictest3281347-21kworker/u8:2+events_unbound10:05:160
3100271991814,3cyclictest3152123-21kworker/u8:2+events_unbound08:19:560
3100281991714,3cyclictest3095117-21kworker/u8:3+events_unbound07:22:533
3100281991713,3cyclictest3281347-21kworker/u8:2+events_unbound10:15:223
3100281991713,3cyclictest3121042-21kworker/u8:0+events_unbound07:31:553
3100276991714,2cyclictest76485-21kworker/u8:2+events_unbound07:20:192
3100276991714,2cyclictest3281347-21kworker/u8:2+events_unbound11:05:032
3100276991714,2cyclictest3095117-21kworker/u8:3+events_unbound07:15:152
3100276991713,3cyclictest3353804-21kworker/u8:3+flush-259:012:05:252
3100276991713,3cyclictest3281347-21kworker/u8:2+events_unbound11:20:172
3100273991715,2cyclictest3281347-21kworker/u8:2+events_unbound11:46:551
3100273991714,2cyclictest3353804-21kworker/u8:3+flush-259:012:10:001
3100273991714,2cyclictest3353804-21kworker/u8:3+flush-259:011:55:161
3100273991714,2cyclictest3327745-21kworker/u8:0+events_unbound11:05:291
3100271991714,2cyclictest3327745-21kworker/u8:0+events_unbound11:10:220
3100271991714,2cyclictest3152123-21kworker/u8:2+events_unbound08:10:220
3100271991714,2cyclictest3131137-21kworker/u8:2+flush-259:007:40:240
3100271991714,2cyclictest3131137-21kworker/u8:2+flush-259:007:40:240
3100271991713,3cyclictest3281347-21kworker/u8:2+flush-259:011:00:180
3100281991613,2cyclictest3281347-21kworker/u8:2+events_unbound11:20:153
3100276991613,2cyclictest3426553-21kworker/u8:0+events_unbound12:30:222
3100276991613,2cyclictest3327745-21kworker/u8:0+events_unbound12:15:232
3100276991613,2cyclictest3281347-21kworker/u8:2+events_unbound10:30:222
3100276991613,2cyclictest3203525-21kworker/u8:1+events_unbound09:30:262
3100273991613,2cyclictest3421126-21kworker/u8:2+events_unbound12:25:191
3100273991613,2cyclictest3203525-21kworker/u8:1+flush-259:009:00:161
3100273991613,2cyclictest3131137-21kworker/u8:2+flush-259:007:40:171
3100273991613,2cyclictest3131137-21kworker/u8:2+flush-259:007:40:161
3100273991612,3cyclictest3296928-21kworker/u8:1+flush-259:010:40:151
3100273991612,3cyclictest3296928-21kworker/u8:1+flush-259:010:40:141
3100273991612,3cyclictest3296928-21kworker/u8:1+events_unbound10:35:151
3100273991612,3cyclictest3095117-21kworker/u8:3+events_unbound07:15:291
3100271991613,2cyclictest60350irq/132-enp0s29f1:rx-011:25:230
3100271991613,2cyclictest60350irq/132-enp0s29f1:rx-009:50:150
3100271991613,2cyclictest60350irq/132-enp0s29f1:rx-007:35:130
3100271991611,4cyclictest3425702-21ntpq12:20:220
3100281991511,3cyclictest3396116-21kworker/u8:1+events_unbound12:09:563
3100281991511,3cyclictest3157485-21kworker/u8:3+events_unbound08:37:553
3100281991511,3cyclictest3121042-21kworker/u8:0+events_unbound08:06:563
3100273991512,2cyclictest3281347-21kworker/u8:2+events_unbound11:29:571
3100271991514,1cyclictest60350irq/132-enp0s29f1:rx-010:22:510
3100271991513,1cyclictest60350irq/132-enp0s29f1:rx-011:20:150
3100271991513,1cyclictest60350irq/132-enp0s29f1:rx-010:27:260
3100271991513,1cyclictest60350irq/132-enp0s29f1:rx-010:15:270
3100271991513,1cyclictest60350irq/132-enp0s29f1:rx-009:30:260
3100271991513,1cyclictest60350irq/132-enp0s29f1:rx-009:15:240
3100271991513,1cyclictest60350irq/132-enp0s29f1:rx-008:09:080
3100271991512,2cyclictest3396116-21kworker/u8:1+flush-259:012:00:250
3100271991512,2cyclictest3327745-21kworker/u8:0+flush-259:010:50:250
3100271991512,2cyclictest3203525-21kworker/u8:1+flush-259:009:20:160
3100271991511,3cyclictest3396116-21kworker/u8:1+flush-259:011:59:350
3100281991411,2cyclictest3373966-21unixbench_singl11:30:243
3100281991411,2cyclictest3281347-21kworker/u8:2+flush-259:010:40:213
3100281991411,2cyclictest3281347-21kworker/u8:2+flush-259:010:40:213
3100281991411,2cyclictest3281347-21kworker/u8:2+events_unbound10:30:253
3100281991411,2cyclictest3095117-21kworker/u8:3+flush-259:007:39:303
3100281991410,3cyclictest3327745-21kworker/u8:0+events_unbound10:50:553
3100273991410,3cyclictest509-21rs:main1
3100271991412,1cyclictest60350irq/132-enp0s29f1:rx-007:50:190
3100271991411,2cyclictest61150irq/133-enp0s29f1:tx-009:00:150
3100271991411,2cyclictest60350irq/132-enp0s29f1:rx-010:10:220
3100271991411,2cyclictest60350irq/132-enp0s29f1:rx-007:30:140
3100271991410,3cyclictest3203525-21kworker/u8:1+events_unbound08:55:090
310028199139,3cyclictest3353804-21kworker/u8:3+events_unbound11:25:223
310028199139,3cyclictest3281347-21kworker/u8:2+flush-259:011:09:593
310028199139,3cyclictest3142050-21kworker/u8:1+events_unbound08:00:243
310028199138,4cyclictest3437149-21apt-get12:35:123
3100281991311,1cyclictest3235582-21irqcore09:20:183
3100281991311,1cyclictest0-21swapper/311:20:013
3100281991311,1cyclictest0-21swapper/307:40:183
3100281991311,1cyclictest0-21swapper/307:40:183
3100281991310,2cyclictest3353804-21kworker/u8:3+flush-259:012:20:013
310027699139,3cyclictest3296928-21kworker/u8:1+events_unbound10:25:202
3100276991310,2cyclictest3396116-21kworker/u8:1+events_unbound12:00:302
3100273991310,2cyclictest3203525-21kworker/u8:1+events_unbound09:35:141
310028199129,2cyclictest3303276-21irqcore10:25:173
310028199129,2cyclictest3121042-21kworker/u8:0+events_unbound07:56:553
310028199129,2cyclictest3095117-21kworker/u8:3+flush-259:007:10:213
3100281991210,1cyclictest0-21swapper/311:45:003
3100276991210,1cyclictest0-21swapper/208:45:002
310027399128,3cyclictest3177882-21kworker/u8:0+events_unbound08:40:481
3100273991210,2cyclictest3157485-21kworker/u8:3+events_unbound08:38:561
310027199128,3cyclictest60350irq/132-enp0s29f1:rx-011:30:120
310028199119,1cyclictest0-21swapper/310:35:143
310028199118,2cyclictest3287289-21fschecks_count10:10:123
310028199118,2cyclictest3281347-21kworker/u8:2+events_unbound11:13:553
310028199117,3cyclictest3281347-21kworker/u8:2+flush-259:011:00:283
310028199117,3cyclictest3234908-21kworker/u8:0+flush-259:009:45:263
310027199118,2cyclictest3157485-21kworker/u8:3+flush-259:008:35:160
310028199107,2cyclictest3378127-21kthreadcore11:35:183
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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