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Documentation: Downloads: Top Level :: Caching :: yac :: 2.4.0

yac 2.4.0

Package Information
Summary lockless user data cache
Maintainers Xinchen Hui < laruence at php dot net > (lead) [details]
License PHP
Description yac is a fast, lock-free, shared memory user data cache for PHP. it can be used to replace APC or local memcached.
Homepage https://github.com/laruence/yac
Release notes
Version 2.4.0
(stable) 		- Embed small scalars directly in the hash slot, avoiding value allocations for tiny entries
- Switch compression from FastLZ to LZ4 (better ratio and speed)
- get() accepts an optional $default argument (returned on miss instead of NULL)
- dump() gains an $offset parameter and reports hits, atime, embedded and c_len per entry
- Per-entry hit counters and start_time exposed in info()/dump()
- Multi-get omits missing keys (filled with $default when given) instead of false placeholders
- Field-by-field slot commits and spinlock backoff (pause/yield) reduce contention overhead
- Fixed a startup hang when values_memory_size is below the 4M segment minimum
- Fixed Windows shared memory cleanup (view unmapped exactly once)
- Fixed valgrind-reported leaks and uninitialized reads (MINFO output, compression error paths)

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Dependencies for release 2.4.0
PHP Version: PHP 7.0.0 or newer
PEAR Package: PEAR 1.4.0 or newer
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