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Merge bitcoin#13191: Specialized double-SHA256 with 64 byte inputs with SSE4.1 and AVX2
4defdfa [MOVEONLY] Move unused Merkle branch code to tests (Pieter Wuille) 4437d6e 8-way AVX2 implementation for double SHA256 on 64-byte inputs (Pieter Wuille) 230294b 4-way SSE4.1 implementation for double SHA256 on 64-byte inputs (Pieter Wuille) 1f0e7ca Use SHA256D64 in Merkle root computation (Pieter Wuille) d0c9632 Specialized double sha256 for 64 byte inputs (Pieter Wuille) 57f3463 Refactor SHA256 code (Pieter Wuille) 0df0178 Benchmark Merkle root computation (Pieter Wuille) Pull request description: This introduces a framework for specialized double-SHA256 with 64 byte inputs. 4 different implementations are provided: * Generic C++ (reusing the normal SHA256 code) * Specialized C++ for 64-byte inputs, but no special instructions * 4-way using SSE4.1 intrinsics * 8-way using AVX2 intrinsics On my own system (AVX2 capable), I get these benchmarks for computing the Merkle root of 9001 leaves (supported lengths / special instructions / parallellism): * 7.2 ms with varsize/naive/1way (master, non-SSE4 hardware) * 5.8 ms with size64/naive/1way (this PR, non-SSE4 capable systems) * 4.8 ms with varsize/SSE4/1way (master, SSE4 hardware) * 2.9 ms with size64/SSE4/4way (this PR, SSE4 hardware) * 1.1 ms with size64/AVX2/8way (this PR, AVX2 hardware) Tree-SHA512: efa32d48b32820d9ce788ead4eb583949265be8c2e5f538c94bc914e92d131a57f8c1ee26c6f998e81fb0e30675d4e2eddc3360bcf632676249036018cff343e
2 parents 2722a1f + 4defdfa commit 0de7cc8

16 files changed

+1347
-204
lines changed

‎configure.ac‎

Lines changed: 44 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -312,6 +312,8 @@ fi
312312
# be compiled with them, rather that specific objects/libs may use them after checking for runtime
313313
# compatibility.
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AX_CHECK_COMPILE_FLAG([-msse4.2],[[SSE42_CXXFLAGS="-msse4.2"]],,[[$CXXFLAG_WERROR]])
315+
AX_CHECK_COMPILE_FLAG([-msse4.1],[[SSE41_CXXFLAGS="-msse4.1"]],,[[$CXXFLAG_WERROR]])
316+
AX_CHECK_COMPILE_FLAG([-mavx -mavx2],[[AVX2_CXXFLAGS="-mavx -mavx2"]],,[[$CXXFLAG_WERROR]])
315317

316318
TEMP_CXXFLAGS="$CXXFLAGS"
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CXXFLAGS="$CXXFLAGS $SSE42_CXXFLAGS"
@@ -335,6 +337,44 @@ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
335337
)
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CXXFLAGS="$TEMP_CXXFLAGS"
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TEMP_CXXFLAGS="$CXXFLAGS"
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CXXFLAGS="$CXXFLAGS $SSE41_CXXFLAGS"
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AC_MSG_CHECKING(for SSE4.1 intrinsics)
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AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
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#include <stdint.h>
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#if defined(_MSC_VER)
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#include <immintrin.h>
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#elif defined(__GNUC__)
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#include <x86intrin.h>
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#endif
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]],[[
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__m128i l = _mm_set1_epi32(0);
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return _mm_extract_epi32(l, 3);
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]])],
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[ AC_MSG_RESULT(yes); enable_sse41=yes; AC_DEFINE(ENABLE_SSE41, 1, [Define this symbol to build code that uses SSE4.1 intrinsics]) ],
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[ AC_MSG_RESULT(no)]
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)
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CXXFLAGS="$TEMP_CXXFLAGS"
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TEMP_CXXFLAGS="$CXXFLAGS"
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CXXFLAGS="$CXXFLAGS $AVX2_CXXFLAGS"
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AC_MSG_CHECKING(for AVX2 intrinsics)
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AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
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#include <stdint.h>
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#if defined(_MSC_VER)
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#include <immintrin.h>
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#elif defined(__GNUC__) && defined(__AVX2__)
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#include <x86intrin.h>
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#endif
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]],[[
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__m256i l = _mm256_set1_epi32(0);
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return _mm256_extract_epi32(l, 7);
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]])],
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[ AC_MSG_RESULT(yes); enable_avx2=yes; AC_DEFINE(ENABLE_AVX2, 1, [Define this symbol to build code that uses AVX2 intrinsics]) ],
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[ AC_MSG_RESULT(no)]
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)
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CXXFLAGS="$TEMP_CXXFLAGS"
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CPPFLAGS="$CPPFLAGS -DHAVE_BUILD_INFO -D__STDC_FORMAT_MACROS"
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AC_ARG_WITH([utils],
@@ -1253,6 +1293,8 @@ AM_CONDITIONAL([USE_LCOV],[test x$use_lcov = xyes])
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AM_CONDITIONAL([GLIBC_BACK_COMPAT],[test x$use_glibc_compat = xyes])
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AM_CONDITIONAL([HARDEN],[test x$use_hardening = xyes])
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AM_CONDITIONAL([ENABLE_HWCRC32],[test x$enable_hwcrc32 = xyes])
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AM_CONDITIONAL([ENABLE_SSE41],[test x$enable_sse41 = xyes])
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AM_CONDITIONAL([ENABLE_AVX2],[test x$enable_avx2 = xyes])
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AM_CONDITIONAL([USE_ASM],[test x$use_asm = xyes])
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AC_DEFINE(CLIENT_VERSION_MAJOR, _CLIENT_VERSION_MAJOR, [Major version])
@@ -1295,6 +1337,8 @@ AC_SUBST(PIE_FLAGS)
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AC_SUBST(SANITIZER_CXXFLAGS)
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AC_SUBST(SANITIZER_LDFLAGS)
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AC_SUBST(SSE42_CXXFLAGS)
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AC_SUBST(SSE41_CXXFLAGS)
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AC_SUBST(AVX2_CXXFLAGS)
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AC_SUBST(LIBTOOL_APP_LDFLAGS)
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AC_SUBST(USE_UPNP)
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AC_SUBST(USE_QRCODE)

‎src/Makefile.am‎

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Original file line numberDiff line numberDiff line change
@@ -30,6 +30,8 @@ LIBBITCOIN_CONSENSUS=libbitcoin_consensus.a
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LIBBITCOIN_CLI=libbitcoin_cli.a
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LIBBITCOIN_UTIL=libbitcoin_util.a
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LIBBITCOIN_CRYPTO=crypto/libbitcoin_crypto.a
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LIBBITCOIN_CRYPTO_SSE41=crypto/libbitcoin_crypto_sse41.a
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LIBBITCOIN_CRYPTO_AVX2=crypto/libbitcoin_crypto_avx2.a
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LIBBITCOINQT=qt/libbitcoinqt.a
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LIBSECP256K1=secp256k1/libsecp256k1.la
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@@ -50,6 +52,8 @@ $(LIBSECP256K1): $(wildcard secp256k1/src/*) $(wildcard secp256k1/include/*)
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# But to build the less dependent modules first, we manually select their order here:
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EXTRA_LIBRARIES += \
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$(LIBBITCOIN_CRYPTO) \
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$(LIBBITCOIN_CRYPTO_SSE41) \
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$(LIBBITCOIN_CRYPTO_AVX2) \
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$(LIBBITCOIN_UTIL) \
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$(LIBBITCOIN_COMMON) \
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$(LIBBITCOIN_CONSENSUS) \
@@ -289,6 +293,22 @@ if USE_ASM
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crypto_libbitcoin_crypto_a_SOURCES += crypto/sha256_sse4.cpp
290294
endif
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crypto_libbitcoin_crypto_sse41_a_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS)
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crypto_libbitcoin_crypto_sse41_a_CPPFLAGS = $(AM_CPPFLAGS)
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if ENABLE_SSE41
299+
crypto_libbitcoin_crypto_sse41_a_CXXFLAGS += $(SSE41_CXXFLAGS)
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crypto_libbitcoin_crypto_sse41_a_CPPFLAGS += -DENABLE_SSE41
301+
endif
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crypto_libbitcoin_crypto_sse41_a_SOURCES = crypto/sha256_sse41.cpp
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crypto_libbitcoin_crypto_avx2_a_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS)
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crypto_libbitcoin_crypto_avx2_a_CPPFLAGS = $(AM_CPPFLAGS)
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if ENABLE_AVX2
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crypto_libbitcoin_crypto_avx2_a_CXXFLAGS += $(AVX2_CXXFLAGS)
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crypto_libbitcoin_crypto_avx2_a_CPPFLAGS += -DENABLE_AVX2
309+
endif
310+
crypto_libbitcoin_crypto_avx2_a_SOURCES = crypto/sha256_avx2.cpp
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# consensus: shared between all executables that validate any consensus rules.
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libbitcoin_consensus_a_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES)
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libbitcoin_consensus_a_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS)
@@ -411,6 +431,8 @@ bitcoind_LDADD = \
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$(LIBBITCOIN_ZMQ) \
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$(LIBBITCOIN_CONSENSUS) \
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$(LIBBITCOIN_CRYPTO) \
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$(LIBBITCOIN_CRYPTO_SSE41) \
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$(LIBBITCOIN_CRYPTO_AVX2) \
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$(LIBLEVELDB) \
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$(LIBLEVELDB_SSE42) \
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$(LIBMEMENV) \
@@ -432,7 +454,9 @@ bitcoin_cli_LDADD = \
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$(LIBBITCOIN_CLI) \
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$(LIBUNIVALUE) \
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$(LIBBITCOIN_UTIL) \
435-
$(LIBBITCOIN_CRYPTO)
457+
$(LIBBITCOIN_CRYPTO) \
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$(LIBBITCOIN_CRYPTO_SSE41) \
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$(LIBBITCOIN_CRYPTO_AVX2)
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bitcoin_cli_LDADD += $(BOOST_LIBS) $(SSL_LIBS) $(CRYPTO_LIBS) $(EVENT_LIBS)
438462
#
@@ -453,6 +477,8 @@ bitcoin_tx_LDADD = \
453477
$(LIBBITCOIN_UTIL) \
454478
$(LIBBITCOIN_CONSENSUS) \
455479
$(LIBBITCOIN_CRYPTO) \
480+
$(LIBBITCOIN_CRYPTO_SSE41) \
481+
$(LIBBITCOIN_CRYPTO_AVX2) \
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$(LIBSECP256K1)
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458484
bitcoin_tx_LDADD += $(BOOST_LIBS) $(CRYPTO_LIBS)

‎src/Makefile.bench.include‎

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@@ -21,6 +21,7 @@ bench_bench_bitcoin_SOURCES = \
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bench/rollingbloom.cpp \
2222
bench/crypto_hash.cpp \
2323
bench/ccoins_caching.cpp \
24+
bench/merkle_root.cpp \
2425
bench/mempool_eviction.cpp \
2526
bench/verify_script.cpp \
2627
bench/base58.cpp \
@@ -38,6 +39,8 @@ bench_bench_bitcoin_LDADD = \
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$(LIBBITCOIN_UTIL) \
3940
$(LIBBITCOIN_CONSENSUS) \
4041
$(LIBBITCOIN_CRYPTO) \
42+
$(LIBBITCOIN_CRYPTO_SSE41) \
43+
$(LIBBITCOIN_CRYPTO_AVX2) \
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$(LIBLEVELDB) \
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$(LIBLEVELDB_SSE42) \
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$(LIBMEMENV) \

‎src/Makefile.qt.include‎

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@@ -408,7 +408,7 @@ endif
408408
if ENABLE_ZMQ
409409
qt_bitcoin_qt_LDADD += $(LIBBITCOIN_ZMQ) $(ZMQ_LIBS)
410410
endif
411-
qt_bitcoin_qt_LDADD += $(LIBBITCOIN_CLI) $(LIBBITCOIN_COMMON) $(LIBBITCOIN_UTIL) $(LIBBITCOIN_CONSENSUS) $(LIBBITCOIN_CRYPTO) $(LIBUNIVALUE) $(LIBLEVELDB) $(LIBLEVELDB_SSE42) $(LIBMEMENV) \
411+
qt_bitcoin_qt_LDADD += $(LIBBITCOIN_CLI) $(LIBBITCOIN_COMMON) $(LIBBITCOIN_UTIL) $(LIBBITCOIN_CONSENSUS) $(LIBBITCOIN_CRYPTO) $(LIBBITCOIN_CRYPTO_SSE41) $(LIBBITCOIN_CRYPTO_AVX2) $(LIBUNIVALUE) $(LIBLEVELDB) $(LIBLEVELDB_SSE42) $(LIBMEMENV) \
412412
$(BOOST_LIBS) $(QT_LIBS) $(QT_DBUS_LIBS) $(QR_LIBS) $(PROTOBUF_LIBS) $(BDB_LIBS) $(SSL_LIBS) $(CRYPTO_LIBS) $(MINIUPNPC_LIBS) $(LIBSECP256K1) \
413413
$(EVENT_PTHREADS_LIBS) $(EVENT_LIBS)
414414
qt_bitcoin_qt_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(QT_LDFLAGS) $(LIBTOOL_APP_LDFLAGS)

‎src/Makefile.qttest.include‎

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@@ -62,7 +62,7 @@ endif
6262
if ENABLE_ZMQ
6363
qt_test_test_bitcoin_qt_LDADD += $(LIBBITCOIN_ZMQ) $(ZMQ_LIBS)
6464
endif
65-
qt_test_test_bitcoin_qt_LDADD += $(LIBBITCOIN_CLI) $(LIBBITCOIN_COMMON) $(LIBBITCOIN_UTIL) $(LIBBITCOIN_CONSENSUS) $(LIBBITCOIN_CRYPTO) $(LIBUNIVALUE) $(LIBLEVELDB) \
65+
qt_test_test_bitcoin_qt_LDADD += $(LIBBITCOIN_CLI) $(LIBBITCOIN_COMMON) $(LIBBITCOIN_UTIL) $(LIBBITCOIN_CONSENSUS) $(LIBBITCOIN_CRYPTO) $(LIBBITCOIN_CRYPTO_SSE41) $(LIBBITCOIN_CRYPTO_AVX2) $(LIBUNIVALUE) $(LIBLEVELDB) \
6666
$(LIBLEVELDB_SSE42) $(LIBMEMENV) $(BOOST_LIBS) $(QT_DBUS_LIBS) $(QT_TEST_LIBS) $(QT_LIBS) \
6767
$(QR_LIBS) $(PROTOBUF_LIBS) $(BDB_LIBS) $(SSL_LIBS) $(CRYPTO_LIBS) $(MINIUPNPC_LIBS) $(LIBSECP256K1) \
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$(EVENT_PTHREADS_LIBS) $(EVENT_LIBS)

‎src/Makefile.test.include‎

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@@ -109,7 +109,8 @@ test_test_bitcoin_LDADD =
109109
if ENABLE_WALLET
110110
test_test_bitcoin_LDADD += $(LIBBITCOIN_WALLET)
111111
endif
112-
test_test_bitcoin_LDADD += $(LIBBITCOIN_SERVER) $(LIBBITCOIN_CLI) $(LIBBITCOIN_COMMON) $(LIBBITCOIN_UTIL) $(LIBBITCOIN_CONSENSUS) $(LIBBITCOIN_CRYPTO) $(LIBUNIVALUE) \
112+
113+
test_test_bitcoin_LDADD += $(LIBBITCOIN_SERVER) $(LIBBITCOIN_CLI) $(LIBBITCOIN_COMMON) $(LIBBITCOIN_UTIL) $(LIBBITCOIN_CONSENSUS) $(LIBBITCOIN_CRYPTO) $(LIBBITCOIN_CRYPTO_SSE41) $(LIBBITCOIN_CRYPTO_AVX2) $(LIBUNIVALUE) \
113114
$(LIBLEVELDB) $(LIBLEVELDB_SSE42) $(LIBMEMENV) $(BOOST_LIBS) $(BOOST_UNIT_TEST_FRAMEWORK_LIB) $(LIBSECP256K1) $(EVENT_LIBS) $(EVENT_PTHREADS_LIBS)
114115
test_test_bitcoin_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS)
115116

@@ -134,6 +135,8 @@ test_test_bitcoin_fuzzy_LDADD = \
134135
$(LIBBITCOIN_UTIL) \
135136
$(LIBBITCOIN_CONSENSUS) \
136137
$(LIBBITCOIN_CRYPTO) \
138+
$(LIBBITCOIN_CRYPTO_SSE41) \
139+
$(LIBBITCOIN_CRYPTO_AVX2) \
137140
$(LIBSECP256K1)
138141

139142
test_test_bitcoin_fuzzy_LDADD += $(BOOST_LIBS) $(CRYPTO_LIBS)

‎src/bench/crypto_hash.cpp‎

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Original file line numberDiff line numberDiff line change
@@ -52,6 +52,14 @@ static void SHA256_32b(benchmark::State& state)
5252
}
5353
}
5454

55+
static void SHA256D64_1024(benchmark::State& state)
56+
{
57+
std::vector<uint8_t> in(64 * 1024, 0);
58+
while (state.KeepRunning()) {
59+
SHA256D64(in.data(), in.data(), 1024);
60+
}
61+
}
62+
5563
static void SHA512(benchmark::State& state)
5664
{
5765
uint8_t hash[CSHA512::OUTPUT_SIZE];
@@ -94,5 +102,6 @@ BENCHMARK(SHA512, 330);
94102

95103
BENCHMARK(SHA256_32b, 4700 * 1000);
96104
BENCHMARK(SipHash_32b, 40 * 1000 * 1000);
105+
BENCHMARK(SHA256D64_1024, 7400);
97106
BENCHMARK(FastRandom_32bit, 110 * 1000 * 1000);
98107
BENCHMARK(FastRandom_1bit, 440 * 1000 * 1000);

‎src/bench/merkle_root.cpp‎

Lines changed: 26 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,26 @@
1+
// Copyright (c) 2016 The Bitcoin Core developers
2+
// Distributed under the MIT software license, see the accompanying
3+
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
4+
5+
#include "bench.h"
6+
7+
#include "uint256.h"
8+
#include "random.h"
9+
#include "consensus/merkle.h"
10+
11+
static void MerkleRoot(benchmark::State& state)
12+
{
13+
FastRandomContext rng(true);
14+
std::vector<uint256> leaves;
15+
leaves.resize(9001);
16+
for (auto& item : leaves) {
17+
item = rng.rand256();
18+
}
19+
while (state.KeepRunning()) {
20+
bool mutation = false;
21+
uint256 hash = ComputeMerkleRoot(std::vector<uint256>(leaves), &mutation);
22+
leaves[mutation] = hash;
23+
}
24+
}
25+
26+
BENCHMARK(MerkleRoot, 800);

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