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Adding tuning macros for memory usage of the library, fixes.
Reduced the sanity test case to half its original iterations.
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Readme.md
18
Readme.md
@ -12,7 +12,7 @@ These build up a code AST to then serialize with a file builder.
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* [Building](#notes)
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* [Outline](#outline)
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* [What is not provided](#what-is-not-provided)
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* [The four constructors](#there-are-four-sets-of-interfaces-for-code-ast-generation-the-library-provides)
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* [The three constructors ](#there-are-three-sets-of-interfaces-for-code-ast-generation-the-library-provides)
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* [Predefined Codes](#predefined-codes)
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* [Code generation and modification](#code-generation-and-modification)
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* [On multithreading](#on-multi-threading)
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@ -291,12 +291,16 @@ Data Notes:
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* I will be augmenting the single arena with a simple slag allocator.
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* Linked lists used children nodes on bodies, and parameters.
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* Its intended to generate the AST in one go and serialize after. The constructors and serializer are designed to be a "one pass, front to back" setup.
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* When benchmarking, the three most significant var to tune are:
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* `Global_BlockSize` (found gen_dep.hpp) : Used by the GlobalAllocator for the size of each global arena.
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* `SizePer_StringArena` (found in gen.hpp under the constants region) : Used by the string cache to store strings.
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* `CodePool_NumBlocks` (found in gen.hpp under constants region) : Used by code pool to store ASTs.
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* The default values can handled generating for a string up to a size of ~650 kbs (bottleneck is serialization).
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* Increasing the values can generate files upwards of over a million lines without issue (the formatter will most likely run slower than it)
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* Allocations can be tuned by defining the folloiwng macros:
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* `GEN_GLOBAL_BUCKET_SIZE` : Size of each bucket area for the global allocator
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* `GEN_CODEPOOL_NUM_BLOCKS` : Number of blocks per code pool in the code allocator
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* `GEN_SIZE_PER_STRING_ARENA` : Size per arena used with string caching.
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* `GEN_MAX_COMMENT_LINE_LENGTH` : Longest length a comment can have per line.
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* `GEN_MAX_NAME_LENGTH` : Max length of any identifier.
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* `GEN_MAX_UNTYPED_STR_LENGTH` : Max content length for any untyped code.
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* `GEN_TOKEN_FMT_TOKEN_MAP_MEM_SIZE` : token_fmt_va uses local_persit memory of this size for the hashtable.
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* `GEN_LEX_ALLOCATOR_SIZE`
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* `GEN_BUILDER_STR_BUFFER_RESERVE`
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Two generic templated containers are used throughout the library:
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@ -4115,6 +4115,7 @@ CodeAttributes parse_attributes( Parser::TokArray& toks, char const* context )
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using namespace Parser;
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Token start;
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s32 len = 0;
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if ( check(TokType::Attribute_Open) )
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{
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@ -4126,6 +4127,8 @@ CodeAttributes parse_attributes( Parser::TokArray& toks, char const* context )
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}
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eat( TokType::Attribute_Close );
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s32 len = ( (sptr)prevtok.Text + prevtok.Length ) - (sptr)start.Text;
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}
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else if ( check(TokType::Decl_GNU_Attribute) )
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@ -4140,6 +4143,8 @@ CodeAttributes parse_attributes( Parser::TokArray& toks, char const* context )
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eat(TokType::BraceCurly_Close);
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eat(TokType::BraceCurly_Close);
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s32 len = ( (sptr)prevtok.Text + prevtok.Length ) - (sptr)start.Text;
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}
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else if ( check(TokType::Decl_MSVC_Attribute) )
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@ -4153,15 +4158,16 @@ CodeAttributes parse_attributes( Parser::TokArray& toks, char const* context )
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}
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eat(TokType::BraceCurly_Close);
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s32 len = ( (sptr)prevtok.Text + prevtok.Length ) - (sptr)start.Text;
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}
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else if ( tok_is_attribute( currtok ) )
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{
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eat(currtok.Type);
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s32 len = start.Length;
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}
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s32 len = ( (sptr)prevtok.Text + prevtok.Length ) - (sptr)start.Text;
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if ( len > 0 )
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{
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StrC attribute_txt = { len, start.Text };
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@ -6237,7 +6243,7 @@ CodeUsing parse_using( Parser::TokArray& toks, char const* context )
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{
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using namespace Parser;
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SpecifierT specs_found[16] { ESpecifier::Num_Specifiers };
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SpecifierT specs_found[16] { ESpecifier::Invalid };
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s32 num_specifiers = 0;
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Token name = { nullptr, 0, TokType::Invalid };
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@ -6416,11 +6422,13 @@ sw token_fmt_va( char* buf, uw buf_size, s32 num_tokens, va_list va )
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char const* buf_begin = buf;
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sw remaining = buf_size;
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static Arena tok_map_arena;
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local_persist
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Arena tok_map_arena;
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HashTable<StrC> tok_map;
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{
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static char tok_map_mem[ TokenFmt_TokenMap_MemSize ];
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local_persist
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char tok_map_mem[ TokenFmt_TokenMap_MemSize ];
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tok_map_arena = Arena::init_from_memory( tok_map_mem, sizeof(tok_map_mem) );
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@ -1888,26 +1888,52 @@ StrC token_fmt_impl( sw num, ... )
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extern CodeType t_f64;
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#endif
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#ifndef GEN_GLOBAL_BUCKET_SIZE
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# define GEN_GLOBAL_BUCKET_SIZE megabytes(10)
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#endif
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#ifndef GEN_CODEPOOL_NUM_BLOCKS
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# define GEN_CODEPOOL_NUM_BLOCKS kilobytes(64)
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#endif
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#ifndef GEN_SIZE_PER_STRING_ARENA
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# define GEN_SIZE_PER_STRING_ARENA megabytes(1)
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#endif
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#ifndef GEN_MAX_COMMENT_LINE_LENGTH
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# define GEN_MAX_COMMENT_LINE_LENGTH 1024
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#endif
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#ifndef GEN_MAX_NAME_LENGTH
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# define GEN_MAX_NAME_LENGTH 128
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#endif
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#ifndef GEN_MAX_UNTYPED_STR_LENGTH
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# define GEN_MAX_UNTYPED_STR_LENGTH kilobytes(640)
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#endif
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#ifndef GEN_TOKEN_FMT_TOKEN_MAP_MEM_SIZE
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# define GEN_TOKEN_FMT_TOKEN_MAP_MEM_SIZE kilobytes(4)
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#endif
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#ifndef GEN_LEX_ALLOCATOR_SIZE
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# define GEN_LEX_ALLOCATOR_SIZE megabytes(10)
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#endif
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#ifndef GEN_BUILDER_STR_BUFFER_RESERVE
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# define GEN_BUILDER_STR_BUFFER_RESERVE megabytes(1)
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#endif
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// These constexprs are used for allocation behavior of data structures
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// or string handling while constructing or serializing.
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// Change them to suit your needs.
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constexpr s32 InitSize_DataArrays = 16;
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constexpr s32 InitSize_StringTable = megabytes(4);
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// NOTE: This limits the maximum size of an allocation
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// If you are generating a string larger than this, increase the size of the bucket here.
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constexpr uw Global_BucketSize = megabytes(10);
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constexpr s32 CodePool_NumBlocks = kilobytes(64);
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constexpr s32 SizePer_StringArena = megabytes(1);
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constexpr uw Global_BucketSize = GEN_GLOBAL_BUCKET_SIZE;
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constexpr s32 CodePool_NumBlocks = GEN_CODEPOOL_NUM_BLOCKS;
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constexpr s32 SizePer_StringArena = GEN_SIZE_PER_STRING_ARENA;
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constexpr s32 MaxCommentLineLength = 1024;
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constexpr s32 MaxNameLength = 128;
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constexpr s32 MaxUntypedStrLength = kilobytes(640);
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constexpr s32 StringTable_MaxHashLength = kilobytes(1);
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constexpr s32 TokenFmt_TokenMap_MemSize = kilobytes(4);
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constexpr s32 LexAllocator_Size = megabytes(10);
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constexpr s32 Builder_StrBufferReserve = megabytes(1);
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constexpr s32 MaxCommentLineLength = GEN_MAX_COMMENT_LINE_LENGTH;
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constexpr s32 MaxNameLength = GEN_MAX_NAME_LENGTH;
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constexpr s32 MaxUntypedStrLength = GEN_MAX_UNTYPED_STR_LENGTH;
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constexpr s32 TokenFmt_TokenMap_MemSize = GEN_TOKEN_FMT_TOKEN_MAP_MEM_SIZE;
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constexpr s32 LexAllocator_Size = GEN_LEX_ALLOCATOR_SIZE;
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constexpr s32 Builder_StrBufferReserve = GEN_BUILDER_STR_BUFFER_RESERVE;
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extern CodeType t_auto;
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extern CodeType t_void;
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@ -39,7 +39,7 @@ void check_sanity()
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Num String Cache : 30000025
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*/
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constexpr
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s32 num_iterations = 650000;
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s32 num_iterations = 325000;
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Array<CodeTypedef> typedefs = Array<CodeTypedef>::init_reserve( GlobalAllocator, num_iterations * 2 );
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