发布于 2017-06-22 00:48:03 | 189 次阅读 | 评论: 0 | 来源: 网友投递
OTP Erlang 编写的应用服务器
OTP (Open Telecom Platform) 是一个开源的 Erlang 分发和一个用 Erlang 编写的应用服务器，由爱立信开发。
OTP 20.0 发布了，
Erlang / OTP 20.0是一个新的主要版本，新增了一些新功能，不少（特征）改进。与第二个候选版本相比的变化如下：
ERTS:In the OTP 20 release candidates the function erlang:term_to_binary/1 changed the encoding of all atoms from ATOM_EXT to ATOM_UTF8_EXT and SMALL_ATOM_UTF8_EXT. This is now changed so that only atoms actually containing unicode characters are encoded with the UTF8 tags while other atoms are encoded ATOM_EXT just as before.
主要更新内容：
Dirty schedulers enabled and supported on VM with SMP support.
support for “dirty” BIFs and “dirty” GC.
erlang:garbage_collect/2 for control of minor or major GC
Erlang literals are no longer copied when sending messages.
Improved performance for large ETS tables, >256 entries (except ordered_set)
erlang:system_info/1 atom_count and atom_limit
Reduced memory pressure by converting sub-binaries to heap-binaries during GC
enif_select, map an external event to message
Improvements of timers internally in the VM resulting in reduced memory consumption and more efficient administration for timers
Code generation for complicated guards is improved.
Warnings for repeated identical map keys. #{'a'=>1, 'b'=>2, 'a'=>3} will warn for the repeated key a.
By default there is now a warning when export_all is used. Can be disabled
Pattern matching for maps is optimized
New option deterministic to omit path to source + options info the BEAM file.
Atoms may now contain arbitrary unicode characters.
compile:file/2 has an option to include extra chunks in the BEAM file.
……
完整更新内容请查看发行首页。
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