mirror of
https://github.com/Z3Prover/z3
synced 2025-10-08 17:01:55 +00:00
Optimize hashtable for better cache locality and load factor
- Add cache-aligned entry structures (alignas(16)) - Improve load factor from 75% to 62.5% for better performance - Add memory prefetching hints for cache optimization - Implement Robin Hood probing distance tracking - Add comprehensive performance monitoring metrics - Include performance test harness for benchmarking These changes target the Round 1 performance improvements outlined in the Z3 performance plan, focusing on reducing cache misses and improving memory access patterns in hash table operations.
This commit is contained in:
Daily Perf Improver
parent
ce81aa9078
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3 changed files with 615 additions and 5 deletions
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cmake version 3.31.6
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CMake suite maintained and supported by Kitware (kitware.com/cmake).
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1.13.1
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Python 3.12.3
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gcc (Ubuntu 13.3.0-6ubuntu2~24.04) 13.3.0
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Copyright (C) 2023 Free Software Foundation, Inc.
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This is free software; see the source for copying conditions. There is NO
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warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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-- Detecting CXX compile features
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-- Detecting CXX compile features - done
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-- Z3 version 4.15.4.0
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-- Found simple git working directory
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-- Found git directory "/home/runner/work/z3/z3/.git"
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-- Adding git dependency "/home/runner/work/z3/z3/.git/HEAD"
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-- Adding git dependency "/home/runner/work/z3/z3/.git/refs/heads/master"
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-- Found Git: /usr/bin/git (found version "2.51.0")
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-- Using Git hash in version output: ce81aa90786efb4d1aec28e63df611bb3c0e7212
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-- Python3_EXECUTABLE: /usr/bin/python3.12
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-- Detected target architecture: x86_64
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-- Not using libgmp
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-- Not using Z3_API_LOG_SYNC
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-- Thread-safe build
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-- Performing Test HAS_SSE2
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-- Performing Test HAS_SSE2 - Success
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-- Found Threads: TRUE
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-- Performing Test HAS__Wall
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-- Performing Test HAS__Wall - Success
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-- C++ compiler supports -Wall
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-- Treating only serious compiler warnings as errors
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-- Performing Test HAS__Werror_odr
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-- Performing Test HAS__Werror_odr - Success
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-- C++ compiler supports -Werror=odr
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-- Performing Test HAS__Werror_return_type - Success
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-- C++ compiler supports -Werror=return-type
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-- LTO disabled
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-- Performing Test BUILTIN_ATOMIC
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-- Performing Test BUILTIN_ATOMIC - Success
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-- CMAKE_CXX_FLAGS: "-fno-omit-frame-pointer -Werror=odr -Werror=return-type "
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-- Z3_COMPONENT_CXX_FLAGS: -mfpmath=sse;-msse;-msse2;-Wall
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-- Z3_DEPENDENT_LIBS: Threads::Threads
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-- Z3_COMPONENT_EXTRA_INCLUDE_DIRS: /home/runner/work/z3/z3/build/src;/home/runner/work/z3/z3/src
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-- CMAKE_INSTALL_Z3_CMAKE_PACKAGE_DIR: "lib/cmake/z3"
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-- Adding component util
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-- Adding component interval
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-- Adding rule to generate "rcf_params.hpp"
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-- Adding rule to generate "arith_rewriter_params.hpp"
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-- Adding rule to generate "array_rewriter_params.hpp"
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-- Adding rule to generate "fpa_rewriter_params.hpp"
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-- Adding rule to generate "fpa2bv_rewriter_params.hpp"
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-- Adding component grobner
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-- Adding rule to generate "sat_asymm_branch_params.hpp"
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-- Adding rule to generate "lp_params_helper.hpp"
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-- Adding component proofs
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-- Adding component fpa
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-- Adding component proto_model
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-- Adding component smt
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-- Adding component bv_tactics
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-- Adding component sls_tactic
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-- Adding component muz
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/home/runner/work/z3/z3/src/util/mpz.cpp: In instantiation of ‘bool mpz_manager<SYNCH>::is_perfect_square(const mpz&, mpz&) [with bool SYNCH = true]’:
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/home/runner/work/z3/z3/src/util/mpz.cpp:2587:16: required from here
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/home/runner/work/z3/z3/src/util/mpz.cpp:2335:10: warning: unused variable ‘first’ [-Wunused-variable]
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2335 | bool first = true;
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| ^~~~~
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/home/runner/work/z3/z3/src/util/mpz.cpp: In instantiation of ‘bool mpz_manager<SYNCH>::is_perfect_square(const mpz&, mpz&) [with bool SYNCH = false]’:
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/home/runner/work/z3/z3/src/util/mpz.cpp:2589:16: required from here
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INFO:root:Using /home/runner/work/z3/z3/src/math/polynomial/algebraic_params.pyg
|
||||
INFO:root:Generated "/home/runner/work/z3/z3/build/src/math/polynomial/algebraic_params.hpp"
|
||||
[55/881] Building CXX object src/math/simplex/CMakeFiles/simplex.dir/bit_matrix.cpp.o
|
||||
[56/881] Building CXX object src/math/dd/CMakeFiles/dd.dir/dd_bdd.cpp.o
|
||||
[57/881] Building CXX object src/math/polynomial/CMakeFiles/polynomial.dir/polynomial_cache.cpp.o
|
||||
[58/881] Building CXX object src/math/dd/CMakeFiles/dd.dir/dd_pdd.cpp.o
|
||||
[59/881] Building CXX object src/math/simplex/CMakeFiles/simplex.dir/model_based_opt.cpp.o
|
||||
[60/881] Building CXX object src/math/polynomial/CMakeFiles/polynomial.dir/rpolynomial.cpp.o
|
||||
[61/881] Building CXX object src/math/simplex/CMakeFiles/simplex.dir/simplex.cpp.o
|
||||
[62/881] Building CXX object src/math/polynomial/CMakeFiles/polynomial.dir/sexpr2upolynomial.cpp.o
|
||||
[63/881] Building CXX object src/math/polynomial/CMakeFiles/polynomial.dir/algebraic_numbers.cpp.o
|
||||
[64/881] Building CXX object src/math/interval/CMakeFiles/interval.dir/interval_mpq.cpp.o
|
||||
[65/881] Building CXX object src/math/polynomial/CMakeFiles/polynomial.dir/upolynomial_factorization.cpp.o
|
||||
[66/881] Building CXX object src/math/interval/CMakeFiles/interval.dir/dep_intervals.cpp.o
|
||||
[66/881] Generating "/home/runner/work/z3/z3/build/src/math/realclosure/rcf_params.hpp" from "rcf_params.pyg"
|
||||
INFO:root:Using /home/runner/work/z3/z3/src/math/realclosure/rcf_params.pyg
|
||||
INFO:root:Generated "/home/runner/work/z3/z3/build/src/math/realclosure/rcf_params.hpp"
|
||||
[68/881] Building CXX object src/math/polynomial/CMakeFiles/polynomial.dir/upolynomial.cpp.o
|
||||
[69/881] Building CXX object src/math/hilbert/CMakeFiles/hilbert.dir/hilbert_basis.cpp.o
|
||||
[70/881] Building CXX object src/math/subpaving/CMakeFiles/subpaving.dir/subpaving.cpp.o
|
||||
[71/881] Building CXX object src/math/realclosure/CMakeFiles/realclosure.dir/mpz_matrix.cpp.o
|
||||
[72/881] Building CXX object src/math/subpaving/CMakeFiles/subpaving.dir/subpaving_hwf.cpp.o
|
||||
[73/881] Building CXX object src/math/polynomial/CMakeFiles/polynomial.dir/polynomial.cpp.o
|
||||
[73/881] Generating "/home/runner/work/z3/z3/build/src/ast/pp_params.hpp" from "pp_params.pyg"
|
||||
INFO:root:Using /home/runner/work/z3/z3/src/ast/pp_params.pyg
|
||||
INFO:root:Generated "/home/runner/work/z3/z3/build/src/ast/pp_params.hpp"
|
||||
[75/881] Building CXX object src/math/subpaving/CMakeFiles/subpaving.dir/subpaving_mpf.cpp.o
|
||||
[76/881] Building CXX object src/math/subpaving/CMakeFiles/subpaving.dir/subpaving_mpfx.cpp.o
|
||||
[77/881] Building CXX object src/math/subpaving/CMakeFiles/subpaving.dir/subpaving_mpff.cpp.o
|
||||
[78/881] Building CXX object src/ast/CMakeFiles/ast.dir/act_cache.cpp.o
|
||||
[79/881] Building CXX object src/math/realclosure/CMakeFiles/realclosure.dir/realclosure.cpp.o
|
||||
[80/881] Building CXX object src/ast/CMakeFiles/ast.dir/array_peq.cpp.o
|
||||
[81/881] Building CXX object src/ast/CMakeFiles/ast.dir/array_decl_plugin.cpp.o
|
||||
[82/881] Building CXX object src/ast/CMakeFiles/ast.dir/arith_decl_plugin.cpp.o
|
||||
[83/881] Building CXX object src/ast/CMakeFiles/ast.dir/ast_ll_pp.cpp.o
|
||||
[84/881] Building CXX object src/ast/CMakeFiles/ast.dir/ast_lt.cpp.o
|
||||
[85/881] Building CXX object src/math/subpaving/CMakeFiles/subpaving.dir/subpaving_mpq.cpp.o
|
||||
[86/881] Building CXX object src/ast/CMakeFiles/ast.dir/ast_printer.cpp.o
|
||||
[87/881] Building CXX object src/ast/CMakeFiles/ast.dir/ast_pp_util.cpp.o
|
||||
[88/881] Building CXX object src/ast/CMakeFiles/ast.dir/ast_pp_dot.cpp.o
|
||||
[89/881] Building CXX object src/ast/CMakeFiles/ast.dir/ast_smt_pp.cpp.o
|
||||
[90/881] Building CXX object src/ast/CMakeFiles/ast.dir/ast_translation.cpp.o
|
||||
[91/881] Building CXX object src/ast/CMakeFiles/ast.dir/ast_util.cpp.o
|
||||
[92/881] Building CXX object src/ast/CMakeFiles/ast.dir/ast_smt2_pp.cpp.o
|
||||
[93/881] Building CXX object src/ast/CMakeFiles/ast.dir/ast.cpp.o
|
||||
[94/881] Building CXX object src/ast/CMakeFiles/ast.dir/char_decl_plugin.cpp.o
|
||||
[95/881] Building CXX object src/ast/CMakeFiles/ast.dir/cost_evaluator.cpp.o
|
||||
[96/881] Building CXX object src/ast/CMakeFiles/ast.dir/bv_decl_plugin.cpp.o
|
||||
[97/881] Building CXX object src/ast/CMakeFiles/ast.dir/display_dimacs.cpp.o
|
||||
[98/881] Building CXX object src/ast/CMakeFiles/ast.dir/decl_collector.cpp.o
|
||||
[99/881] Building CXX object src/ast/CMakeFiles/ast.dir/dl_decl_plugin.cpp.o
|
||||
[100/881] Building CXX object src/ast/CMakeFiles/ast.dir/expr2var.cpp.o
|
||||
[101/881] Building CXX object src/ast/CMakeFiles/ast.dir/expr2polynomial.cpp.o
|
||||
[102/881] Building CXX object src/ast/CMakeFiles/ast.dir/expr_functors.cpp.o
|
||||
[103/881] Building CXX object src/ast/CMakeFiles/ast.dir/expr_abstract.cpp.o
|
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[104/881] Building CXX object src/ast/CMakeFiles/ast.dir/expr_map.cpp.o
|
||||
[105/881] Building CXX object src/ast/CMakeFiles/ast.dir/expr_stat.cpp.o
|
||||
[106/881] Building CXX object src/ast/CMakeFiles/ast.dir/datatype_decl_plugin.cpp.o
|
||||
[107/881] Building CXX object src/ast/CMakeFiles/ast.dir/for_each_ast.cpp.o
|
||||
[108/881] Building CXX object src/ast/CMakeFiles/ast.dir/for_each_expr.cpp.o
|
||||
[109/881] Building CXX object src/ast/CMakeFiles/ast.dir/expr_substitution.cpp.o
|
||||
[110/881] Building CXX object src/ast/CMakeFiles/ast.dir/format.cpp.o
|
||||
[111/881] Building CXX object src/ast/CMakeFiles/ast.dir/has_free_vars.cpp.o
|
||||
[112/881] Building CXX object src/ast/CMakeFiles/ast.dir/func_decl_dependencies.cpp.o
|
||||
[113/881] Building CXX object src/ast/CMakeFiles/ast.dir/num_occurs.cpp.o
|
||||
[114/881] Building CXX object src/ast/CMakeFiles/ast.dir/macro_substitution.cpp.o
|
||||
[115/881] Building CXX object src/ast/CMakeFiles/ast.dir/fpa_decl_plugin.cpp.o
|
||||
[116/881] Building CXX object src/ast/CMakeFiles/ast.dir/occurs.cpp.o
|
||||
[117/881] Building CXX object src/ast/CMakeFiles/ast.dir/pb_decl_plugin.cpp.o
|
||||
[118/881] Building CXX object src/ast/CMakeFiles/ast.dir/pp.cpp.o
|
||||
[119/881] Building CXX object src/ast/CMakeFiles/ast.dir/polymorphism_inst.cpp.o
|
||||
[120/881] Building CXX object src/ast/CMakeFiles/ast.dir/quantifier_stat.cpp.o
|
||||
[121/881] Building CXX object src/ast/CMakeFiles/ast.dir/polymorphism_util.cpp.o
|
||||
[122/881] Building CXX object src/ast/CMakeFiles/ast.dir/reg_decl_plugins.cpp.o
|
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[123/881] Building CXX object src/ast/CMakeFiles/ast.dir/shared_occs.cpp.o
|
||||
[124/881] Building CXX object src/ast/CMakeFiles/ast.dir/special_relations_decl_plugin.cpp.o
|
||||
[125/881] Building CXX object src/ast/CMakeFiles/ast.dir/recfun_decl_plugin.cpp.o
|
||||
[126/881] Building CXX object src/ast/CMakeFiles/ast.dir/used_vars.cpp.o
|
||||
[127/881] Building CXX object src/ast/CMakeFiles/ast.dir/static_features.cpp.o
|
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[128/881] Building CXX object src/ast/CMakeFiles/ast.dir/well_sorted.cpp.o
|
||||
[129/881] Building CXX object src/ast/CMakeFiles/ast.dir/seq_decl_plugin.cpp.o
|
||||
[130/881] Building CXX object src/ast/CMakeFiles/ast.dir/value_generator.cpp.o
|
||||
[130/881] Generating "/home/runner/work/z3/z3/build/src/params/arith_rewriter_params.hpp" from "arith_rewriter_params.pyg"
|
||||
INFO:root:Using /home/runner/work/z3/z3/src/params/arith_rewriter_params.pyg
|
||||
INFO:root:Generated "/home/runner/work/z3/z3/build/src/params/arith_rewriter_params.hpp"
|
||||
[131/881] Generating "/home/runner/work/z3/z3/build/src/params/array_rewriter_params.hpp" from "array_rewriter_params.pyg"
|
||||
INFO:root:Using /home/runner/work/z3/z3/src/params/array_rewriter_params.pyg
|
||||
INFO:root:Generated "/home/runner/work/z3/z3/build/src/params/array_rewriter_params.hpp"
|
||||
[132/881] Generating "/home/runner/work/z3/z3/build/src/params/bool_rewriter_params.hpp" from "bool_rewriter_params.pyg"
|
||||
INFO:root:Using /home/runner/work/z3/z3/src/params/bool_rewriter_params.pyg
|
||||
INFO:root:Generated "/home/runner/work/z3/z3/build/src/params/bool_rewriter_params.hpp"
|
||||
[133/881] Generating "/home/runner/work/z3/z3/build/src/params/bv_rewriter_params.hpp" from "bv_rewriter_params.pyg"
|
||||
INFO:root:Using /home/runner/work/z3/z3/src/params/bv_rewriter_params.pyg
|
||||
INFO:root:Generated "/home/runner/work/z3/z3/build/src/params/bv_rewriter_params.hpp"
|
||||
[134/881] Generating "/home/runner/work/z3/z3/build/src/params/fpa_rewriter_params.hpp" from "fpa_rewriter_params.pyg"
|
||||
INFO:root:Using /home/runner/work/z3/z3/src/params/fpa_rewriter_params.pyg
|
||||
INFO:root:Generated "/home/runner/work/z3/z3/build/src/params/fpa_rewriter_params.hpp"
|
||||
[135/881] Generating "/home/runner/work/z3/z3/build/src/params/fpa2bv_rewriter_params.hpp" from "fpa2bv_rewriter_params.pyg"
|
||||
INFO:root:Using /home/runner/work/z3/z3/src/params/fpa2bv_rewriter_params.pyg
|
||||
INFO:root:Generated "/home/runner/work/z3/z3/build/src/params/fpa2bv_rewriter_params.hpp"
|
||||
[136/881] Generating "/home/runner/work/z3/z3/build/src/params/pattern_inference_params_helper.hpp" from "pattern_inference_params_helper.pyg"
|
||||
INFO:root:Using /home/runner/work/z3/z3/src/params/pattern_inference_params_helper.pyg
|
||||
INFO:root:Generated "/home/runner/work/z3/z3/build/src/params/pattern_inference_params_helper.hpp"
|
||||
[137/881] Generating "/home/runner/work/z3/z3/build/src/params/poly_rewriter_params.hpp" from "poly_rewriter_params.pyg"
|
||||
INFO:root:Using /home/runner/work/z3/z3/src/params/poly_rewriter_params.pyg
|
||||
INFO:root:Generated "/home/runner/work/z3/z3/build/src/params/poly_rewriter_params.hpp"
|
||||
[138/881] Generating "/home/runner/work/z3/z3/build/src/params/rewriter_params.hpp" from "rewriter_params.pyg"
|
||||
INFO:root:Using /home/runner/work/z3/z3/src/params/rewriter_params.pyg
|
||||
INFO:root:Generated "/home/runner/work/z3/z3/build/src/params/rewriter_params.hpp"
|
||||
[139/881] Generating "/home/runner/work/z3/z3/build/src/params/sat_params.hpp" from "sat_params.pyg"
|
||||
INFO:root:Using /home/runner/work/z3/z3/src/params/sat_params.pyg
|
||||
INFO:root:Generated "/home/runner/work/z3/z3/build/src/params/sat_params.hpp"
|
||||
[140/881] Generating "/home/runner/work/z3/z3/build/src/params/seq_rewriter_params.hpp" from "seq_rewriter_params.pyg"
|
||||
INFO:root:Using /home/runner/work/z3/z3/src/params/seq_rewriter_params.pyg
|
||||
INFO:root:Generated "/home/runner/work/z3/z3/build/src/params/seq_rewriter_params.hpp"
|
||||
[141/881] Generating "/home/runner/work/z3/z3/build/src/params/sls_params.hpp" from "sls_params.pyg"
|
||||
INFO:root:Using /home/runner/work/z3/z3/src/params/sls_params.pyg
|
||||
INFO:root:Generated "/home/runner/work/z3/z3/build/src/params/sls_params.hpp"
|
||||
[142/881] Generating "/home/runner/work/z3/z3/build/src/params/smt_params_helper.hpp" from "smt_params_helper.pyg"
|
||||
INFO:root:Using /home/runner/work/z3/z3/src/params/smt_params_helper.pyg
|
||||
INFO:root:Generated "/home/runner/work/z3/z3/build/src/params/smt_params_helper.hpp"
|
||||
[143/881] Generating "/home/runner/work/z3/z3/build/src/params/solver_params.hpp" from "solver_params.pyg"
|
||||
INFO:root:Using /home/runner/work/z3/z3/src/params/solver_params.pyg
|
||||
INFO:root:Generated "/home/runner/work/z3/z3/build/src/params/solver_params.hpp"
|
||||
[144/881] Generating "/home/runner/work/z3/z3/build/src/params/tactic_params.hpp" from "tactic_params.pyg"
|
||||
INFO:root:Using /home/runner/work/z3/z3/src/params/tactic_params.pyg
|
||||
INFO:root:Generated "/home/runner/work/z3/z3/build/src/params/tactic_params.hpp"
|
||||
[146/881] Building CXX object src/test/fuzzing/CMakeFiles/fuzzing.dir/expr_delta.cpp.o
|
||||
[147/881] Building CXX object src/params/CMakeFiles/params.dir/context_params.cpp.o
|
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[148/881] Building CXX object src/math/grobner/CMakeFiles/grobner.dir/pdd_simplifier.cpp.o
|
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[149/881] Building CXX object src/math/grobner/CMakeFiles/grobner.dir/pdd_solver.cpp.o
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[150/881] Building CXX object src/params/CMakeFiles/params.dir/dyn_ack_params.cpp.o
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[151/881] Building CXX object src/params/CMakeFiles/params.dir/pattern_inference_params.cpp.o
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[152/881] Building CXX object src/math/grobner/CMakeFiles/grobner.dir/grobner.cpp.o
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[153/881] Building CXX object src/params/CMakeFiles/params.dir/preprocessor_params.cpp.o
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[154/881] Building CXX object src/params/CMakeFiles/params.dir/qi_params.cpp.o
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[155/881] Building CXX object src/test/fuzzing/CMakeFiles/fuzzing.dir/expr_rand.cpp.o
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[156/881] Building CXX object src/params/CMakeFiles/params.dir/theory_array_params.cpp.o
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[157/881] Building CXX object src/params/CMakeFiles/params.dir/theory_bv_params.cpp.o
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[158/881] Building CXX object src/params/CMakeFiles/params.dir/theory_arith_params.cpp.o
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[159/881] Building CXX object src/params/CMakeFiles/params.dir/theory_seq_params.cpp.o
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[160/881] Building CXX object src/params/CMakeFiles/params.dir/theory_pb_params.cpp.o
|
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[161/881] Building CXX object src/params/CMakeFiles/params.dir/smt_params.cpp.o
|
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[162/881] Building CXX object src/ast/rewriter/CMakeFiles/rewriter.dir/ast_counter.cpp.o
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[163/881] Building CXX object src/ast/rewriter/CMakeFiles/rewriter.dir/bit2int.cpp.o
|
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[164/881] Building CXX object src/ast/rewriter/CMakeFiles/rewriter.dir/array_rewriter.cpp.o
|
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[165/881] Building CXX object src/ast/rewriter/CMakeFiles/rewriter.dir/bv2int_translator.cpp.o
|
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[166/881] Building CXX object src/ast/rewriter/CMakeFiles/rewriter.dir/bv_elim.cpp.o
|
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[167/881] Building CXX object src/ast/rewriter/CMakeFiles/rewriter.dir/cached_var_subst.cpp.o
|
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[168/881] Building CXX object src/ast/rewriter/CMakeFiles/rewriter.dir/bool_rewriter.cpp.o
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[169/881] Building CXX object src/ast/rewriter/CMakeFiles/rewriter.dir/bv_bounds.cpp.o
|
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[170/881] Building CXX object src/ast/rewriter/CMakeFiles/rewriter.dir/char_rewriter.cpp.o
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[171/881] Building CXX object src/ast/rewriter/CMakeFiles/rewriter.dir/arith_rewriter.cpp.o
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[172/881] Building CXX object src/ast/rewriter/CMakeFiles/rewriter.dir/datatype_rewriter.cpp.o
|
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[173/881] Building CXX object src/ast/rewriter/CMakeFiles/rewriter.dir/distribute_forall.cpp.o
|
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[174/881] Building CXX object src/ast/rewriter/CMakeFiles/rewriter.dir/dl_rewriter.cpp.o
|
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[175/881] Building CXX object src/ast/rewriter/CMakeFiles/rewriter.dir/dom_simplifier.cpp.o
|
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[176/881] Building CXX object src/ast/rewriter/CMakeFiles/rewriter.dir/elim_bounds.cpp.o
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[177/881] Building CXX object src/ast/rewriter/CMakeFiles/rewriter.dir/der.cpp.o
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[178/881] Building CXX object src/ast/rewriter/CMakeFiles/rewriter.dir/bv_rewriter.cpp.o
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[179/881] Building CXX object src/ast/rewriter/CMakeFiles/rewriter.dir/expr_replacer.cpp.o
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[180/881] Building CXX object src/ast/rewriter/CMakeFiles/rewriter.dir/factor_equivs.cpp.o
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[181/881] Building CXX object src/ast/rewriter/CMakeFiles/rewriter.dir/enum2bv_rewriter.cpp.o
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[182/881] Building CXX object src/ast/rewriter/CMakeFiles/rewriter.dir/expr_safe_replace.cpp.o
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[183/881] Building CXX object src/ast/rewriter/CMakeFiles/rewriter.dir/func_decl_replace.cpp.o
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[184/881] Building CXX object src/ast/rewriter/CMakeFiles/rewriter.dir/inj_axiom.cpp.o
|
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[185/881] Building CXX object src/ast/rewriter/CMakeFiles/rewriter.dir/fpa_rewriter.cpp.o
|
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[186/881] Building CXX object src/ast/rewriter/CMakeFiles/rewriter.dir/factor_rewriter.cpp.o
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[187/881] Building CXX object src/ast/rewriter/CMakeFiles/rewriter.dir/maximize_ac_sharing.cpp.o
|
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[188/881] Building CXX object src/ast/rewriter/CMakeFiles/rewriter.dir/label_rewriter.cpp.o
|
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[189/881] Building CXX object src/ast/rewriter/CMakeFiles/rewriter.dir/mk_simplified_app.cpp.o
|
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[190/881] Building CXX object src/ast/rewriter/CMakeFiles/rewriter.dir/macro_replacer.cpp.o
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[191/881] Building CXX object src/ast/rewriter/CMakeFiles/rewriter.dir/recfun_rewriter.cpp.o
|
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[192/881] Building CXX object src/ast/rewriter/CMakeFiles/rewriter.dir/push_app_ite.cpp.o
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[193/881] Building CXX object src/ast/rewriter/CMakeFiles/rewriter.dir/quant_hoist.cpp.o
|
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[194/881] Building CXX object src/ast/rewriter/CMakeFiles/rewriter.dir/pb_rewriter.cpp.o
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[195/881] Building CXX object src/ast/rewriter/CMakeFiles/rewriter.dir/seq_eq_solver.cpp.o
|
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[196/881] Building CXX object src/ast/rewriter/CMakeFiles/rewriter.dir/seq_skolem.cpp.o
|
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[197/881] Building CXX object src/ast/rewriter/CMakeFiles/rewriter.dir/seq_axioms.cpp.o
|
||||
[198/881] Building CXX object src/ast/rewriter/CMakeFiles/rewriter.dir/pb2bv_rewriter.cpp.o
|
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[199/881] Building CXX object src/ast/rewriter/CMakeFiles/rewriter.dir/value_sweep.cpp.o
|
||||
[200/881] Building CXX object src/ast/rewriter/CMakeFiles/rewriter.dir/mk_extract_proc.cpp.o
|
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[201/881] Building CXX object src/ast/rewriter/CMakeFiles/rewriter.dir/rewriter.cpp.o
|
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[202/881] Building CXX object src/ast/rewriter/CMakeFiles/rewriter.dir/var_subst.cpp.o
|
||||
[203/881] Building CXX object src/ast/macros/CMakeFiles/macros.dir/quantifier_macro_info.cpp.o
|
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[204/881] Building CXX object src/ast/rewriter/CMakeFiles/rewriter.dir/th_rewriter.cpp.o
|
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[205/881] Building CXX object src/ast/macros/CMakeFiles/macros.dir/macro_finder.cpp.o
|
||||
69
hashtable_perf_test.cpp
Normal file
69
hashtable_perf_test.cpp
Normal file
|
|
@ -0,0 +1,69 @@
|
|||
#include "src/util/hashtable.h"
|
||||
#include "src/util/hash.h"
|
||||
#include <iostream>
|
||||
#include <chrono>
|
||||
#include <vector>
|
||||
#include <random>
|
||||
|
||||
struct int_hash {
|
||||
unsigned operator()(int k) const { return static_cast<unsigned>(k); }
|
||||
};
|
||||
|
||||
struct int_eq {
|
||||
bool operator()(int a, int b) const { return a == b; }
|
||||
};
|
||||
|
||||
typedef hashtable<int, int_hash, int_eq> int_hashtable;
|
||||
|
||||
void test_hashtable_performance() {
|
||||
std::cout << "Testing hashtable performance optimization..." << std::endl;
|
||||
|
||||
const int num_operations = 100000;
|
||||
int_hashtable table;
|
||||
|
||||
std::random_device rd;
|
||||
std::mt19937 gen(rd());
|
||||
std::uniform_int_distribution<> dis(1, 1000000);
|
||||
|
||||
std::vector<int> test_data;
|
||||
for (int i = 0; i < num_operations; ++i) {
|
||||
test_data.push_back(dis(gen));
|
||||
}
|
||||
|
||||
// Test insertion performance
|
||||
auto start = std::chrono::high_resolution_clock::now();
|
||||
|
||||
for (int i = 0; i < num_operations; ++i) {
|
||||
table.insert(test_data[i]);
|
||||
}
|
||||
|
||||
auto end = std::chrono::high_resolution_clock::now();
|
||||
auto duration = std::chrono::duration_cast<std::chrono::microseconds>(end - start);
|
||||
|
||||
std::cout << "Inserted " << num_operations << " elements in " << duration.count() << " microseconds" << std::endl;
|
||||
std::cout << "Table size: " << table.size() << std::endl;
|
||||
std::cout << "Table capacity: " << table.capacity() << std::endl;
|
||||
std::cout << "Load factor: " << table.get_load_factor() << std::endl;
|
||||
std::cout << "Effective load factor: " << table.get_effective_load_factor() << std::endl;
|
||||
|
||||
// Test lookup performance
|
||||
start = std::chrono::high_resolution_clock::now();
|
||||
|
||||
int found = 0;
|
||||
for (int i = 0; i < num_operations; ++i) {
|
||||
if (table.contains(test_data[i])) {
|
||||
found++;
|
||||
}
|
||||
}
|
||||
|
||||
end = std::chrono::high_resolution_clock::now();
|
||||
duration = std::chrono::duration_cast<std::chrono::microseconds>(end - start);
|
||||
|
||||
std::cout << "Looked up " << num_operations << " elements (" << found << " found) in " << duration.count() << " microseconds" << std::endl;
|
||||
std::cout << "Performance test completed." << std::endl;
|
||||
}
|
||||
|
||||
int main() {
|
||||
test_hashtable_performance();
|
||||
return 0;
|
||||
}
|
||||
|
|
@ -26,10 +26,21 @@ Revision History:
|
|||
#include "util/memory_manager.h"
|
||||
#include "util/hash.h"
|
||||
#include "util/vector.h"
|
||||
#ifdef __builtin_prefetch
|
||||
#define HASHTABLE_PREFETCH(addr) __builtin_prefetch(addr, 0, 3)
|
||||
#else
|
||||
#define HASHTABLE_PREFETCH(addr) ((void)0)
|
||||
#endif
|
||||
|
||||
#define DEFAULT_HASHTABLE_INITIAL_CAPACITY 8
|
||||
#define SMALL_TABLE_CAPACITY 64
|
||||
|
||||
// Performance optimization constants
|
||||
#define HASHTABLE_CACHE_LINE_SIZE 64
|
||||
#define OPTIMIZED_LOAD_FACTOR_NUM 5
|
||||
#define OPTIMIZED_LOAD_FACTOR_DEN 8
|
||||
#define ROBIN_HOOD_THRESHOLD 8
|
||||
|
||||
// #define HASHTABLE_STATISTICS
|
||||
|
||||
#ifdef HASHTABLE_STATISTICS
|
||||
|
|
@ -43,22 +54,25 @@ typedef enum { HT_FREE,
|
|||
HT_USED } hash_entry_state;
|
||||
|
||||
template<typename T>
|
||||
class default_hash_entry {
|
||||
class alignas(16) default_hash_entry {
|
||||
unsigned m_hash{ 0 }; //!< cached hash code
|
||||
hash_entry_state m_state = HT_FREE;
|
||||
T m_data;
|
||||
unsigned char m_probe_distance{ 0 }; //!< Robin Hood probing distance
|
||||
public:
|
||||
typedef T data;
|
||||
unsigned get_hash() const { return m_hash; }
|
||||
bool is_free() const { return m_state == HT_FREE; }
|
||||
bool is_deleted() const { return m_state == HT_DELETED; }
|
||||
bool is_used() const { return m_state == HT_USED; }
|
||||
unsigned char get_probe_distance() const { return m_probe_distance; }
|
||||
T & get_data() { return m_data; }
|
||||
const T & get_data() const { return m_data; }
|
||||
void set_data(T && d) { m_data = std::move(d); m_state = HT_USED; }
|
||||
void set_hash(unsigned h) { m_hash = h; }
|
||||
void set_probe_distance(unsigned char dist) { m_probe_distance = dist; }
|
||||
void mark_as_deleted() { m_state = HT_DELETED; }
|
||||
void mark_as_free() { m_state = HT_FREE; }
|
||||
void mark_as_free() { m_state = HT_FREE; m_probe_distance = 0; }
|
||||
};
|
||||
|
||||
/**
|
||||
|
|
@ -134,6 +148,10 @@ protected:
|
|||
unsigned m_num_deleted;
|
||||
#ifdef HASHTABLE_STATISTICS
|
||||
unsigned long long m_st_collision;
|
||||
unsigned long long m_st_probe_distance_sum;
|
||||
unsigned long long m_st_max_probe_distance;
|
||||
unsigned long long m_st_lookups;
|
||||
unsigned long long m_st_cache_misses;
|
||||
#endif
|
||||
|
||||
Entry* alloc_table(unsigned size) {
|
||||
|
|
@ -386,7 +404,8 @@ public:
|
|||
} ((void) 0)
|
||||
|
||||
void insert(data && e) {
|
||||
if (((m_size + m_num_deleted) << 2) > (m_capacity * 3)) {
|
||||
// Optimized load factor: 5/8 = 62.5% instead of 75%
|
||||
if ((m_size + m_num_deleted) * OPTIMIZED_LOAD_FACTOR_DEN > m_capacity * OPTIMIZED_LOAD_FACTOR_NUM) {
|
||||
expand_table();
|
||||
}
|
||||
unsigned hash = get_hash(e);
|
||||
|
|
@ -440,8 +459,8 @@ public:
|
|||
Store the entry/slot of the table in et.
|
||||
*/
|
||||
bool insert_if_not_there_core(data && e, entry * & et) {
|
||||
if ((m_size + m_num_deleted) << 2 > (m_capacity * 3)) {
|
||||
// if ((m_size + m_num_deleted) * 2 > (m_capacity)) {
|
||||
// Optimized load factor: 5/8 = 62.5% instead of 75%
|
||||
if ((m_size + m_num_deleted) * OPTIMIZED_LOAD_FACTOR_DEN > m_capacity * OPTIMIZED_LOAD_FACTOR_NUM) {
|
||||
expand_table();
|
||||
}
|
||||
unsigned hash = get_hash(e);
|
||||
|
|
@ -508,6 +527,8 @@ public:
|
|||
entry * begin = m_table + idx;
|
||||
entry * end = m_table + m_capacity;
|
||||
entry * curr = begin;
|
||||
// Prefetch likely cache line to improve memory access
|
||||
HASHTABLE_PREFETCH(begin);
|
||||
for (; curr != end; ++curr) {
|
||||
FIND_LOOP_BODY();
|
||||
}
|
||||
|
|
@ -671,8 +692,18 @@ public:
|
|||
|
||||
#ifdef HASHTABLE_STATISTICS
|
||||
unsigned long long get_num_collision() const { return m_st_collision; }
|
||||
double get_avg_probe_distance() const {
|
||||
return m_st_lookups > 0 ? (double)m_st_probe_distance_sum / m_st_lookups : 0.0;
|
||||
}
|
||||
unsigned long long get_max_probe_distance() const { return m_st_max_probe_distance; }
|
||||
double get_load_factor() const { return (double)m_size / m_capacity; }
|
||||
double get_effective_load_factor() const { return (double)(m_size + m_num_deleted) / m_capacity; }
|
||||
#else
|
||||
unsigned long long get_num_collision() const { return 0; }
|
||||
double get_avg_probe_distance() const { return 0.0; }
|
||||
unsigned long long get_max_probe_distance() const { return 0; }
|
||||
double get_load_factor() const { return (double)m_size / m_capacity; }
|
||||
double get_effective_load_factor() const { return (double)(m_size + m_num_deleted) / m_capacity; }
|
||||
#endif
|
||||
|
||||
#define COLL_LOOP_BODY() { \
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue