57 lines
2.2 KiB
C
57 lines
2.2 KiB
C
// tiny_route_box.c - Implementation of Tiny Front Routing Policy Box
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#include "tiny_route_box.h"
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#include <stdlib.h>
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#include <string.h>
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#include <stdio.h>
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// Default: conservative profile (all classes TINY_FIRST).
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// This keeps Tiny in the fast path but always allows Pool fallback.
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uint8_t g_tiny_route[8] = {
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ROUTE_TINY_FIRST, ROUTE_TINY_FIRST, ROUTE_TINY_FIRST, ROUTE_TINY_FIRST,
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ROUTE_TINY_FIRST, ROUTE_TINY_FIRST, ROUTE_TINY_FIRST, ROUTE_TINY_FIRST
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};
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void tiny_route_init(void)
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{
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const char* profile = getenv("HAKMEM_TINY_PROFILE");
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if (!profile || !*profile) {
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profile = "conservative";
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}
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if (strcmp(profile, "hot") == 0) {
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// Hot profile:
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// - C0-C3: TINY_ONLY （小さいクラスは Tiny 専用で aggressive）
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// - C4-C6: TINY_FIRST （中間サイズは fallback あり）
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// - C7 : POOL_ONLY （1KB headerless は Pool に任せる）
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g_tiny_route[0] = g_tiny_route[1] = g_tiny_route[2] = g_tiny_route[3] = ROUTE_TINY_ONLY;
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g_tiny_route[4] = g_tiny_route[5] = g_tiny_route[6] = ROUTE_TINY_FIRST;
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g_tiny_route[7] = ROUTE_POOL_ONLY;
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} else if (strcmp(profile, "full") == 0) {
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// Full Tiny profile:
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// - 全クラス TINY_ONLY（microbench 用、Pool に逃がさない）
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memset(g_tiny_route, ROUTE_TINY_ONLY, sizeof(g_tiny_route));
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} else if (strcmp(profile, "off") == 0) {
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// Tiny off profile:
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// - 全クラス POOL_ONLY（Tiny front 完全無効化）
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memset(g_tiny_route, ROUTE_POOL_ONLY, sizeof(g_tiny_route));
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} else {
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// "conservative" および未知の値:
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// - 全クラス TINY_FIRST（Tiny を使うが必ず Pool fallbackあり）
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memset(g_tiny_route, ROUTE_TINY_FIRST, sizeof(g_tiny_route));
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}
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#if HAKMEM_BUILD_RELEASE
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static int rel_logged = 0;
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if (!rel_logged) {
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const char* mode =
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(g_tiny_route[7] == ROUTE_TINY_ONLY) ? "TINY_ONLY" :
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(g_tiny_route[7] == ROUTE_TINY_FIRST) ? "TINY_FIRST" :
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(g_tiny_route[7] == ROUTE_POOL_ONLY) ? "POOL_ONLY" : "UNKNOWN";
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fprintf(stderr, "[REL_C7_ROUTE] profile=%s route=%s\n", profile, mode);
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rel_logged = 1;
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}
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#endif
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}
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