Optimize layer sizes - #262
mnapoli merged 2 commits into
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The goal is to reduce layer sizes to optimize cold starts (that's the theory at least). - `strip` debug symbols for all libraries and PHP extensions (saves 11.7%) - compile PHP with the `-Os` C/CPP flag to optimize the binary for size (saves 8%) - compile libraries with the `-Os` flag (saves 6.3%) - disable the `soap` extension by default to avoid loading it on PHP startup (the only big unpopular extension I could find) - bundle the `pdo-mysql` extension in the PHP binary: it is extra small and will avoid loading it through an external file (small optimization) In total that's a 24% size reduction, i.e. 14.6MB. This is for Bref v3, I will run some benchmarks as just measuring the layer size doesn't tell us the full story about cold starts.
This could probably be backported to bref 2 without any issues. |
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Yes but there is some uncertainty on whether -Os is worth it over -O3 or even -O2 in terms of performance, so I'd feel much more comfortable being able to have a long beta period where multiple people can beta test these changes. |
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Ah, good point. -O1 or even -O2 are probably quite conservative options to go with in Bref 2, if we wanted. |
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Asking Claude what it thinks... 
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I'll run some benchmarks and see if there is any noticeable change |
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The goal is to reduce layer sizes to optimize cold starts (that's the theory at least).
In total that's a 24% size reduction, i.e. 14.6MB.
This is for Bref v3, I will run some benchmarks as just measuring the layer size doesn't tell us the full story about cold starts.