Use SIMD version of Pillow

[kkopachev]

https://github.com/uploadcare/pillow-simd/ I have being using that for a few days now and seems to be working correctly. Not sure how much savings it brings, but theoretically there should be some.
What do you think?

[eduherraiz]

Great to know! Thanks for sharing.
I'm not sure about include it in the main image, but I'm thinking to create a special image version "thumbor-smid". I'll try to do it in the next release.

[kkopachev]

That's part of my Dockerfile:

RUN pip uninstall -y pillow

# could use "avx2" if target cpu supports
ARG SIMD_LEVEL=sse4
RUN CC="cc -m$SIMD_LEVEL" pip install --no-cache-dir -U --force-reinstall pillow-simd

By default it uses sse4 instructions, but possible to build it with --build-arg SIMD_LEVEL=avx2. So then you'll have to have 2 built docker images.

[eduherraiz]

For the moment we can use a custom builds and tags for simd pillow versions:

apsl/thumbor:latest-simd-sse4
apsl/thumbor:latest-simd-avx2
apsl/thumbor-multiprocess:latest-simd-sse4
apsl/thumbor-multiprocess:latest-simd-avx2

Or see the tags for a version in:
https://hub.docker.com/r/apsl/thumbor/tags/
https://hub.docker.com/r/apsl/thumbor-multiprocess/tags/

I'll do more tests comparing differents pillow versions and add a few detail in doc.

[homm]

I'll do more tests comparing different pillow versions

You can check this page with lots of benchmarks (and give some feedback about page itself)