start on kernel warming

[timkpaine]

No description provided.

[timkpaine]

λ p3 -m voila bqplot.ipynb --VoilaConfiguration.warm_kernel=True --VoilaConfiguration.warm_kernel_preexecute_cell_count=0 --VoilaConfiguration.warm_kernel_preload_count=0 --no-browser
[Voila] Using /var/folders/s3/1mjw0y192zg3450tkkn1yfnm0000gn/T to store connection files
[Voila] Storing connection files in /var/folders/s3/1mjw0y192zg3450tkkn1yfnm0000gn/T/voila__dna4985.
[Voila] Serving static files from /Volumes/MacintoshHD/username/Programs/projects/voila/voila/static.
[Voila] CRITICAL | Enabling kernel warming
[Voila] CRITICAL | Preloading 0 kernels
[Voila] Voilà is running at:
http://localhost:8866/
[Voila] WARNING | Notebook bqplot.ipynb is not trusted
[Voila] Kernel started: cb687d28-b9f4-4d73-95b0-e5cb225744ff
WARNING:tornado.general:404 DELETE /api/kernels/a0d46acf-8d0a-43bf-9edf-aa1d42f11ef0?1601087480270 (::1): Kernel does not exist: a0d46acf-8d0a-43bf-9edf-aa1d42f11ef0
[Voila] WARNING | Kernel does not exist: a0d46acf-8d0a-43bf-9edf-aa1d42f11ef0
WARNING:tornado.access:404 DELETE /api/kernels/a0d46acf-8d0a-43bf-9edf-aa1d42f11ef0?1601087480270 (::1) 205.59ms
[Voila] CRITICAL | Done warming cells
[Voila] CRITICAL | Executing cell: 0
[Voila] CRITICAL | Executing cell: 1
[Voila] CRITICAL | Executing cell: 2

[timkpaine]

preexecute 3 instances, 1 cell each

λ p3 -m voila bqplot.ipynb --VoilaConfiguration.warm_kernel=True --VoilaConfiguration.warm_kernel_preexecute_cell_count=1 --VoilaConfiguration.warm_kernel_preload_count=3 --no-browser
[Voila] Using /var/folders/s3/1mjw0y192zg3450tkkn1yfnm0000gn/T to store connection files
[Voila] Storing connection files in /var/folders/s3/1mjw0y192zg3450tkkn1yfnm0000gn/T/voila_wp_zlc5y.
[Voila] Serving static files from /Volumes/MacintoshHD/username/Programs/projects/voila/voila/static.
[Voila] CRITICAL | Enabling kernel warming
[Voila] CRITICAL | Preloading 3 kernels
[Voila] Voilà is running at:
http://localhost:8866/
[Voila] WARNING | Notebook bqplot.ipynb is not trusted
[Voila] Kernel started: fa6ff1ff-9956-49d6-ac06-b76c00ac0738
[Voila] WARNING | Notebook bqplot.ipynb is not trusted
[Voila] Kernel started: 069f8be3-e166-4d46-8624-9fb51efc6134
[Voila] WARNING | Notebook bqplot.ipynb is not trusted
[Voila] Kernel started: 4c4075c5-4fc2-4dfd-8ab2-4600d913f3bf
[Voila] CRITICAL | Warming cell: 0
[Voila] CRITICAL | Done warming cells
[Voila] CRITICAL | Warming cell: 0
[Voila] CRITICAL | Done warming cells
[Voila] CRITICAL | Warming cell: 0
[Voila] CRITICAL | Done warming cells
[Voila] CRITICAL | Skipping reexecution of pre-warmed cell: 0
[Voila] CRITICAL | Executing cell: 1
[Voila] WARNING | Notebook bqplot.ipynb is not trusted
[Voila] CRITICAL | Executing cell: 2

[timkpaine]

@SylvainCorlay @davidbrochart promising results, a single hot kernel preexecuting all cells on the left, a non-hot kernel on the right. The hot kernel is refilled as its used so rapid refresh exhausts the pool (since I set it to only 1 instance).