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2011-02-10Update internal pmap to have a process limitLukas Larsson
Add write concurrancy to cover masters ?COVER_TABLE
2011-02-02Update documentation to reflect performance enhancement changes of coverLukas Larsson
2011-02-02Add aync_analyse_to_file function to coverLukas Larsson
2011-02-01Split the cover ets tables into two tables, one with the clause info and one ↵Lukas Larsson
with the bump info. This will make it faster to search the tables when analyzing and exporting data. Also made cover export more parallel in how data is collected from the different nodes and also how data is read from ets. This should make the performance of cover much better on machines with multiple CPUs.
2011-01-27Add process debug tagsLukas Larsson
2011-01-27Update remote collect to handle multiple requests at onceLukas Larsson
2011-01-27Remove io printout warnings when exporting an imported moduleLukas Larsson
2011-01-26Make the call to cover parallel so that the test_server takes advantage of ↵Lukas Larsson
the new cool parallel cover features.
2011-01-26Update cover to allow multiple analyse and analyze_to_file calls at the same ↵Lukas Larsson
time. For each call a seperate process will be spawned to handle the request.
2011-01-26Refactor cover to prepare it for making analysis parallelLukas Larsson
2011-01-25Update remote loading to only load a certain number of modules at a time to ↵Lukas Larsson
prevent memory usage explosion
2011-01-21Merge branch 'ia/ssl-and-public_key/skip-test-if-no-crypto' into devIngela Anderton Andin
* ia/ssl-and-public_key/skip-test-if-no-crypto: Skip ssl and public key tests if crypto fails to start
2011-01-20Skip ssl and public key tests if crypto fails to startIngela Anderton Andin
2011-01-20Merge branch 'maint-r14' into devIngela Anderton Andin
2011-01-20Merge branch 'ks/bs_start_match-fails' into devNiclas Axelsson
* ks/bs_start_match-fails: Fix erroneous fail info of a hipe_bs_primop OTP-9036
2011-01-17Merge branch 'bjorn/beam-loader/OTP-9030' into devBjörn Gustavsson
* bjorn/beam-loader/OTP-9030: (43 commits) c: Reduce memory footprint erl_posix_msg: Reduce memory footprint Introduce a few more variations of the move instructions Combine a move + jump sequence into the move_jump instruction Optimize and clean-up the exact equality/non-equality instructions Optimize addition of a small integer to a variable Introduce a special instruction for select_val with two values Introduce a few more specialized put_list instructions Eliminate the "put_list c n Dst" instructions Eliminate the specific move_sd instruction Eliminate use of GetArg1() in the badmatch and case_end instructions Eliminate use of GetArg2() in the i_element instruction Eliminate use of GetArg1() in the fast_element instruction Eliminate use of GetArg1() in the jump_on_val* instructions Eliminate use of GetArg1() in the select_val instruction beam_emu: Eliminate sloppy use of tmp_arg1 and tmp_arg2 beam_emu: Don't inline helper functions into process_main() beam_emu: Clean up calling of the error_handler module Simplify a select_val instruction that selects only one value Optimize creation of tuples ...
2011-01-17c: Reduce memory footprintBjörn Gustavsson
Use a binary instead of a string for the help text.
2011-01-17erl_posix_msg: Reduce memory footprintBjörn Gustavsson
Since the error messages in the erl_posix_msg module are presumably used very seldom, save memory by using binaries instead of strings.
2011-01-17Introduce a few more variations of the move instructionsBjörn Gustavsson
Frequency counts show that move Const x(1) move Const x(2) are very common.
2011-01-17Combine a move + jump sequence into the move_jump instructionBjörn Gustavsson
That will save one word and small amount of time for each occurrence.
2011-01-17Optimize and clean-up the exact equality/non-equality instructionsBjörn Gustavsson
The is_eq_exact/3 and is_ne_exact/3 instructions are commonly used with one immediate or literal operand. Introduce three new specialized instructions: i_is_eq_exact_literal/3 i_is_ne_exact_immed/3 i_is_ne_exact_literal/3 The i_is_ne_exact_literal/3 instruction is not very frequently used, but its existence is justified because we removed in a a previous commit the special instruction for matching bignums and we now use i_is_ne_exact_literal/3 instead. For consistency, rename the existing is_eq_immed/3 instruction to is_eq_exact_immed/3. While at it, remove the optimization of an is_eq/3 instruction with an immediate operand because that optimization is already done by the compiler.
2011-01-17Optimize addition of a small integer to a variableBjörn Gustavsson
Introduce a new i_increment/4 to optimize the addition of a register and a small integer. This instruction saves two instruction words compared to the standard instructions (an i_fetch/2 instruction followed by a i_plus/3 instruction) and will also be slightly faster.
2011-01-17Introduce a special instruction for select_val with two valuesBjörn Gustavsson
The new instruction will save one word (because no size operand is needed), and is slightly faster. Handle select_tuple_arity in the same way.
2011-01-17Introduce a few more specialized put_list instructionsBjörn Gustavsson
2011-01-17Eliminate the "put_list c n Dst" instructionsBjörn Gustavsson
Since the literal (constant) pool was introduced in R12, the BEAM compiler will never generate a "put_list Const [] Dst" instruction (it will instead generate a "move [Const] Dst" instruction).
2011-01-17Eliminate the specific move_sd instructionBjörn Gustavsson
The move_sd specific instruction is no longer used since there are specific move instructions covering all possible permutations of operands. Also eliminate the move_cy instruction because it is almost never generated by the compiler.
2011-01-17Eliminate use of GetArg1() in the badmatch and case_end instructionsBjörn Gustavsson
Create separate instructions for each register type. The "badmatch x(0)" and "case_end x(0)" (which are very common) will only require a single word each, compared to two words when GetArg1() is used.
2011-01-17Eliminate use of GetArg2() in the i_element instructionBjörn Gustavsson
Use separate instructions for each register type.
2011-01-17Eliminate use of GetArg1() in the fast_element instructionBjörn Gustavsson
Use separate instructions for each register type.
2011-01-17Eliminate use of GetArg1() in the jump_on_val* instructionsBjörn Gustavsson
2011-01-17Eliminate use of GetArg1() in the select_val instructionBjörn Gustavsson
Instead of having one i_select_val_sfI instruction that uses the GetArg1() macro to fetch the controlling expression, use three separate instructions for each of the register types. That will save one word when selecting on the {x,0} register. It should also be slightly faster since a conditional branch is eliminated. Although it seems that the BEAM compiler will never generate a constant controlling expression (even with optimizations turned off), we still make sure that they will work by evaluating the select_val instruction at load time. Handle the select_tuple_arity instruction in the same way.
2011-01-17beam_emu: Eliminate sloppy use of tmp_arg1 and tmp_arg2Björn Gustavsson
The tmp_arg1 and tmp_arg2 variables are intended for transferring values from the fetch/2 instructions to instructions such as i_plus/3. In many places, however, tmp_arg1 and tmp_arg2 are used as general temporary variables within a single instruction. Improve the code generation by replacing sloppy use of tmp_arg1 and tmp_arg2 with block-local variables. In most cases, that will allow the temporary values to be kept in registers.
2011-01-17beam_emu: Don't inline helper functions into process_main()Björn Gustavsson
By default, GCC will inline calls to helper functions. Since process_main() is already huge, there is no reason to inline the helper functions (and some of them are used very seldom).
2011-01-17beam_emu: Clean up calling of the error_handler moduleBjörn Gustavsson
There were two separate functions (call_error_handler() and call_breakpoint_handler()) that were identical except for the name of the function in the error_handler module being called. Generalize call_error_handler() by adding a function name argument so that it can be used for both purposes. Also let the call_error_handler() return the new program counter instead of passing it in c_p->i. That slightly decrease the code size at the call site. There is also no need to use the Dispatch() macro to yet again decrease the reduction counter, because that has just been done by the call instruction that caused the execution of the call_error_handler or i_debug_breakpoint instruction.
2011-01-17Simplify a select_val instruction that selects only one valueBjörn Gustavsson
The compiler does not generate select_val instructions that only selects one value, but the loader may previously have created such an instruction when it splitted a select_val instruction that selected on bignums.
2011-01-17Optimize creation of tuplesBjörn Gustavsson
Combine the put_tuple/2 and all following put/1 instructions to one i_put_tuple/2 instruction. In general, that will reduce the number of instruction words by 50 percent. Measurements seem to indicate that the speed is about the same.
2011-01-17beam_makeops: Support jumping to common code from an instruction macroBjörn Gustavsson
2011-01-17beam_load: Run the packing engine before loading list argumentsBjörn Gustavsson
2011-01-17Allow packing of some more instructionsBjörn Gustavsson
2011-01-17Support packing of the 'I' type in a 64-bit emulatorBjörn Gustavsson
In many (not all) cases, the value for the 'I' type will fit into 32 bits.
2011-01-17beam_makeops: Refactor packing code to facilitate extensionsBjörn Gustavsson
We don't want the packable types listed in two places.
2011-01-17Eliminate redundant jump instructionsBjörn Gustavsson
2011-01-17Eliminate the special instructions for selecting floats and bignumsBjörn Gustavsson
2011-01-17Add test for non-matching big numberBjörn Gustavsson
2011-01-17BEAM loader: Introduce a new move2_xxxx instructionBjörn Gustavsson
2011-01-17BEAM loader: Pack more instructions using a new 'Q' typeBjörn Gustavsson
Introduce a new 'Q' type, similar to 'P' except that it can be packed.
2011-01-17If the wordsize is 64 bits, pack up to 4 operands into a wordBjörn Gustavsson
In the 32-bit BEAM emulator, it is only possible to pack 3 register operands into one word. Therefore, the move2 instruction (that has 4 operands) needs two words for its operands. Take advantage of the larger wordsize in the 64-bit emulator and pack up to 4 operands into a single word.
2011-01-17Pass the external word size to the beam_makeops scriptBjörn Gustavsson
Giving the beam_makeops script access to the external word size (=the size of instruction words) will allow it to pack more operands into a word for the 64 bits emulator.
2011-01-17BEAM loader: Combine is_type/1 and is_eq/1 instructionsBjörn Gustavsson
In the transformation engine in the loader, an is_eq/1 instruction is currently always preceded by an is_type/1 instruction. Therefore, save a word and slight amount of time by combining those instructions into an is_type_eq/2 instruction.
2011-01-17BEAM loader: Omit type tests for instructions that don't need themBjörn Gustavsson
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