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Issue occurs when --parachain-single-process flag is not provided
Bug Description
It is observed that when --parachain-single-process flag is not provided PVF execution time is drastically slower.
Steps to Reproduce
During the execution of zombienet/polkadot/functional/0001-parachains-pvf.zndsl test with --parachain-single-process flag added there were the following execution times:
24.06.13 09:46:42.464610 main_runner Info ParachainProcessorImpl Parachain validation lasted for 337 ms
24.06.13 09:46:48.435971 main_runner Info ParachainProcessorImpl Parachain validation lasted for 273 ms
24.06.13 09:46:55.022460 main_runner Info ParachainProcessorImpl Parachain validation lasted for 294 ms
24.06.13 09:46:55.213458 main_runner Info ParachainProcessorImpl Parachain validation lasted for 484 ms
24.06.13 09:47:00.392891 main_runner Info ParachainProcessorImpl Parachain validation lasted for 247 ms
24.06.13 09:47:06.451197 main_runner Info ParachainProcessorImpl Parachain validation lasted for 307 ms
24.06.13 09:47:12.705043 main_runner Info ParachainProcessorImpl Parachain validation lasted for 191 ms
24.06.13 09:47:18.417648 main_runner Info ParachainProcessorImpl Parachain validation lasted for 245 ms
24.06.13 09:47:18.556004 main_runner Info ParachainProcessorImpl Parachain validation lasted for 136 ms
24.06.13 09:47:24.388348 main_runner Info ParachainProcessorImpl Parachain validation lasted for 240 ms
24.06.13 09:47:30.315966 main_runner Info ParachainProcessorImpl Parachain validation lasted for 170 ms
24.06.13 09:47:36.770884 main_runner Info ParachainProcessorImpl Parachain validation lasted for 163 ms
24.06.13 09:47:37.136053 main_runner Info ParachainProcessorImpl Parachain validation lasted for 518 ms
24.06.13 09:47:42.344387 main_runner Info ParachainProcessorImpl Parachain validation lasted for 213 ms
24.06.13 09:47:48.371995 main_runner Info ParachainProcessorImpl Parachain validation lasted for 272 ms
24.06.13 09:47:54.618380 main_runner Info ParachainProcessorImpl Parachain validation lasted for 476 ms
24.06.13 09:48:00.793122 main_runner Info ParachainProcessorImpl Parachain validation lasted for 543 ms
24.06.13 09:48:06.826347 main_runner Info ParachainProcessorImpl Parachain validation lasted for 536 ms
24.06.13 09:48:12.726246 main_runner Info ParachainProcessorImpl Parachain validation lasted for 600 ms
24.06.13 09:48:18.800589 main_runner Info ParachainProcessorImpl Parachain validation lasted for 483 ms
24.06.13 09:48:25.003346 main_runner Info ParachainProcessorImpl Parachain validation lasted for 219 ms
24.06.13 09:48:30.351778 main_runner Info ParachainProcessorImpl Parachain validation lasted for 154 ms
24.06.13 09:48:30.518747 main_runner Info ParachainProcessorImpl Parachain validation lasted for 320 ms
24.06.13 09:48:36.903490 main_runner Info ParachainProcessorImpl Parachain validation lasted for 711 ms
24.06.13 09:48:36.914686 main_runner Info ParachainProcessorImpl Parachain validation lasted for 722 ms
24.06.13 09:48:42.652574 main_runner Info ParachainProcessorImpl Parachain validation lasted for 524 ms
24.06.13 09:48:48.459002 main_runner Info ParachainProcessorImpl Parachain validation lasted for 244 ms
24.06.13 09:48:48.635134 main_runner Info ParachainProcessorImpl Parachain validation lasted for 418 ms
24.06.13 09:48:54.394874 main_runner Info ParachainProcessorImpl Parachain validation lasted for 275 ms
24.06.13 09:49:00.660355 main_runner Info ParachainProcessorImpl Parachain validation lasted for 558 ms
24.06.13 09:49:06.572422 main_runner Info ParachainProcessorImpl Parachain validation lasted for 439 ms
24.06.13 09:49:12.412997 main_runner Info ParachainProcessorImpl Parachain validation lasted for 189 ms
24.06.13 09:49:18.581708 main_runner Info ParachainProcessorImpl Parachain validation lasted for 154 ms
24.06.13 09:49:24.323560 main_runner Info ParachainProcessorImpl Parachain validation lasted for 154 ms
24.06.13 09:49:30.595910 main_runner Info ParachainProcessorImpl Parachain validation lasted for 474 ms
24.06.13 09:49:36.444391 main_runner Info ParachainProcessorImpl Parachain validation lasted for 227 ms
24.06.13 09:49:42.928065 main_runner Info ParachainProcessorImpl Parachain validation lasted for 323 ms
24.06.13 09:49:48.442094 main_runner Info ParachainProcessorImpl Parachain validation lasted for 212 ms
24.06.13 09:49:48.569911 main_runner Info ParachainProcessorImpl Parachain validation lasted for 339 ms
24.06.13 09:49:54.500129 main_runner Info ParachainProcessorImpl Parachain validation lasted for 359 ms
When flag was added execution times were:
24.06.13 09:38:18.232196 main_runner Info ParachainProcessorImpl Parachain validation lasted for 88 ms
24.06.13 09:38:24.200098 main_runner Info ParachainProcessorImpl Parachain validation lasted for 77 ms
24.06.13 09:38:30.220802 main_runner Info ParachainProcessorImpl Parachain validation lasted for 72 ms
24.06.13 09:38:36.369870 main_runner Info ParachainProcessorImpl Parachain validation lasted for 189 ms
24.06.13 09:38:42.479482 main_runner Info ParachainProcessorImpl Parachain validation lasted for 174 ms
24.06.13 09:38:48.217579 main_runner Info ParachainProcessorImpl Parachain validation lasted for 78 ms
24.06.13 09:38:54.638906 main_runner Info ParachainProcessorImpl Parachain validation lasted for 262 ms
24.06.13 09:38:54.712570 main_runner Info ParachainProcessorImpl Parachain validation lasted for 259 ms
24.06.13 09:38:54.785425 main_runner Info ParachainProcessorImpl Parachain validation lasted for 240 ms
24.06.13 09:39:00.226141 main_runner Info ParachainProcessorImpl Parachain validation lasted for 79 ms
24.06.13 09:39:06.467185 main_runner Info ParachainProcessorImpl Parachain validation lasted for 118 ms
24.06.13 09:39:06.539927 main_runner Info ParachainProcessorImpl Parachain validation lasted for 164 ms
24.06.13 09:39:12.342827 main_runner Info ParachainProcessorImpl Parachain validation lasted for 121 ms
24.06.13 09:39:18.243696 main_runner Info ParachainProcessorImpl Parachain validation lasted for 113 ms
24.06.13 09:39:24.117754 main_runner Info ParachainProcessorImpl Parachain validation lasted for 12 ms
24.06.13 09:39:24.132090 main_runner Info ParachainProcessorImpl Parachain validation lasted for 23 ms
24.06.13 09:39:30.197435 main_runner Info ParachainProcessorImpl Parachain validation lasted for 49 ms
24.06.13 09:39:36.134300 main_runner Info ParachainProcessorImpl Parachain validation lasted for 17 ms
24.06.13 09:39:42.243617 main_runner Info ParachainProcessorImpl Parachain validation lasted for 30 ms
24.06.13 09:39:42.256829 main_runner Info ParachainProcessorImpl Parachain validation lasted for 43 ms
24.06.13 09:39:42.280160 main_runner Info ParachainProcessorImpl Parachain validation lasted for 67 ms
24.06.13 09:39:48.557186 main_runner Info ParachainProcessorImpl Parachain validation lasted for 283 ms
24.06.13 09:39:48.567710 main_runner Info ParachainProcessorImpl Parachain validation lasted for 292 ms
24.06.13 09:39:48.577632 main_runner Info ParachainProcessorImpl Parachain validation lasted for 300 ms
24.06.13 09:39:54.082519 main_runner Info ParachainProcessorImpl Parachain validation lasted for 20 ms
Effects of the Bug
Slow PVF execution times
Expected Behavior
No response
System Information
Tested on Apple M1 Pro, 16GB RAM
Additional Context
No response
The text was updated successfully, but these errors were encountered:
exec on debug is slow (maybe due to executable size or global initializers). fork is fast (0.5ms).
node process may fork+exec initial worker process,
which will fork itself to "work" and stop these processes on timeout.
kagome
└ initial worker (slow start, starts and stops child workers)
├ worker 1 (fast start, does "work", stopped by parent on timeout)
└ worker 2
Bug Summary
Issue occurs when
--parachain-single-process
flag is not providedBug Description
It is observed that when
--parachain-single-process
flag is not provided PVF execution time is drastically slower.Steps to Reproduce
During the execution of
zombienet/polkadot/functional/0001-parachains-pvf.zndsl
test with--parachain-single-process
flag added there were the following execution times:When flag was added execution times were:
Effects of the Bug
Slow PVF execution times
Expected Behavior
No response
System Information
Tested on Apple M1 Pro, 16GB RAM
Additional Context
No response
The text was updated successfully, but these errors were encountered: