Make the compression_level at settable option and expand it to zlib #540
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m6w6
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- Add #515 option to locally enforce payload size limit - Add #539 zstd support - Add #540 compression_level option - Mark password as a sensitive param for PHP 8.2 - Fix Windows PHP 8 compatibility - Fix #518 Windows msgpack support - Fix #522 signed integer overflow - Fix #523 incorrect PHP reflection type for Memcached::cas $cas_token - Fix #546 don't check key automatically, unless client-side verify_key is enabled - Fix #555 incompatible pointer types (32-bit)
m6w6
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Oct 4, 2024
- Add #515 option to locally enforce payload size limit - Add #539 zstd support - Add #540 compression_level option - Mark password as a sensitive param for PHP 8.2 - Fix Windows PHP 8 compatibility - Fix #518 Windows msgpack support - Fix #522 signed integer overflow - Fix #523 incorrect PHP reflection type for Memcached::cas $cas_token - Fix #546 don't check key automatically, unless client-side verify_key is enabled
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Make it possible to use setOption to set
Memcached::OPT_COMPRESSION_LEVELwhich I had missed in my original zstd PR #539zlib compression was using the default zlib compression level of 6. With this PR it is now possible to choose other levels for zlib as well. I have left the default at 6 so nothing will change for people upgrading unless they explicitly set a different level.
And here is some more bench marking data using php serialized data - https://gist.github.com/rlerdorf/b9bae385446d5a30b65e6e241e34d0a8
From this I think it is clear that fastlz is not really useful at any value size anymore. If you are looking for lightning quick compression and decompression, zstd at level 1 is generally a better choice.
I did not apply the compression_level to fastlz because it only has 2 and it currently switches from 1 to 2 automatically for values larger than 65535 bytes. Forcing it to one or the other doesn't seem useful.