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Change factors for CPU cache optimization

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This commit is contained in:
Yutaka Sawada
2024-08-04 21:41:24 +09:00
committed by GitHub
parent ad90e2db8d
commit 3ac6c9336a
6 changed files with 107 additions and 54 deletions
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8
source/par2j/md5_crc.c
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@@ -1,5 +1,5 @@
// md5_crc.c
// Copyright : 2023-12-12 Yutaka Sawada
// Copyright : 2024-07-24 Yutaka Sawada
// License : GPL
#ifndef _UNICODE
@@ -677,7 +677,7 @@ time1_start = clock();
// バッファー・サイズが大きいのでヒープ領域を使う
for (io_size = IO_SIZE; io_size <= MAX_BUF_SIZE; io_size += IO_SIZE){ // IO_SIZE の倍数にする
if ((io_size + IO_SIZE > (cpu_cache & 0xFFFE0000)) || ((__int64)(io_size + IO_SIZE) * 4 > file_left))
if ((io_size + IO_SIZE > (cpu_cache & 0xFFFF0000)) || ((__int64)(io_size + IO_SIZE) * 4 > file_left))
break;
}
buf1 = _aligned_malloc(io_size * 2, 64);
@@ -873,7 +873,7 @@ DWORD WINAPI file_hash_crc2(LPVOID lpParameter)
// バッファー・サイズが大きいのでヒープ領域を使う
prog_tick = 1;
for (io_size = IO_SIZE; io_size <= MAX_BUF_SIZE; io_size += IO_SIZE){ // IO_SIZE の倍数にする
if ((io_size + IO_SIZE > (cpu_cache & 0xFFFE0000)) || ((__int64)(io_size + IO_SIZE) * 4 > file_left))
if ((io_size + IO_SIZE > (cpu_cache & 0xFFFF0000)) || ((__int64)(io_size + IO_SIZE) * 4 > file_left))
break;
prog_tick++;
}
@@ -1311,7 +1311,7 @@ DWORD WINAPI file_hash_background(LPVOID lpParameter)
// バッファー・サイズが大きいのでヒープ領域を使う
for (io_size = IO_SIZE; io_size <= MAX_BUF_SIZE; io_size += IO_SIZE){ // IO_SIZE の倍数にする
if ((io_size + IO_SIZE > (cpu_cache & 0xFFFE0000)) || ((__int64)(io_size + IO_SIZE) * 4 > file_size))
if ((io_size + IO_SIZE > (cpu_cache & 0xFFFF0000)) || ((__int64)(io_size + IO_SIZE) * 4 > file_size))
break;
}
//printf("\n io_size = %d\n", io_size);