diff options
Diffstat (limited to 'deps/jemalloc/src/sz.c')
| -rw-r--r-- | deps/jemalloc/src/sz.c | 155 |
1 files changed, 56 insertions, 99 deletions
diff --git a/deps/jemalloc/src/sz.c b/deps/jemalloc/src/sz.c index 9de77e45f..8633fb050 100644 --- a/deps/jemalloc/src/sz.c +++ b/deps/jemalloc/src/sz.c @@ -2,106 +2,63 @@ #include "jemalloc/internal/sz.h" JEMALLOC_ALIGNED(CACHELINE) -const size_t sz_pind2sz_tab[NPSIZES+1] = { -#define PSZ_yes(lg_grp, ndelta, lg_delta) \ - (((ZU(1)<<lg_grp) + (ZU(ndelta)<<lg_delta))), -#define PSZ_no(lg_grp, ndelta, lg_delta) -#define SC(index, lg_grp, lg_delta, ndelta, psz, bin, pgs, lg_delta_lookup) \ - PSZ_##psz(lg_grp, ndelta, lg_delta) - SIZE_CLASSES -#undef PSZ_yes -#undef PSZ_no -#undef SC - (LARGE_MAXCLASS + PAGE) -}; +size_t sz_pind2sz_tab[SC_NPSIZES+1]; + +static void +sz_boot_pind2sz_tab(const sc_data_t *sc_data) { + int pind = 0; + for (unsigned i = 0; i < SC_NSIZES; i++) { + const sc_t *sc = &sc_data->sc[i]; + if (sc->psz) { + sz_pind2sz_tab[pind] = (ZU(1) << sc->lg_base) + + (ZU(sc->ndelta) << sc->lg_delta); + pind++; + } + } + for (int i = pind; i <= (int)SC_NPSIZES; i++) { + sz_pind2sz_tab[pind] = sc_data->large_maxclass + PAGE; + } +} JEMALLOC_ALIGNED(CACHELINE) -const size_t sz_index2size_tab[NSIZES] = { -#define SC(index, lg_grp, lg_delta, ndelta, psz, bin, pgs, lg_delta_lookup) \ - ((ZU(1)<<lg_grp) + (ZU(ndelta)<<lg_delta)), - SIZE_CLASSES -#undef SC -}; +size_t sz_index2size_tab[SC_NSIZES]; + +static void +sz_boot_index2size_tab(const sc_data_t *sc_data) { + for (unsigned i = 0; i < SC_NSIZES; i++) { + const sc_t *sc = &sc_data->sc[i]; + sz_index2size_tab[i] = (ZU(1) << sc->lg_base) + + (ZU(sc->ndelta) << (sc->lg_delta)); + } +} +/* + * To keep this table small, we divide sizes by the tiny min size, which gives + * the smallest interval for which the result can change. + */ JEMALLOC_ALIGNED(CACHELINE) -const uint8_t sz_size2index_tab[] = { -#if LG_TINY_MIN == 0 -/* The div module doesn't support division by 1. */ -#error "Unsupported LG_TINY_MIN" -#define S2B_0(i) i, -#elif LG_TINY_MIN == 1 -#warning "Dangerous LG_TINY_MIN" -#define S2B_1(i) i, -#elif LG_TINY_MIN == 2 -#warning "Dangerous LG_TINY_MIN" -#define S2B_2(i) i, -#elif LG_TINY_MIN == 3 -#define S2B_3(i) i, -#elif LG_TINY_MIN == 4 -#define S2B_4(i) i, -#elif LG_TINY_MIN == 5 -#define S2B_5(i) i, -#elif LG_TINY_MIN == 6 -#define S2B_6(i) i, -#elif LG_TINY_MIN == 7 -#define S2B_7(i) i, -#elif LG_TINY_MIN == 8 -#define S2B_8(i) i, -#elif LG_TINY_MIN == 9 -#define S2B_9(i) i, -#elif LG_TINY_MIN == 10 -#define S2B_10(i) i, -#elif LG_TINY_MIN == 11 -#define S2B_11(i) i, -#else -#error "Unsupported LG_TINY_MIN" -#endif -#if LG_TINY_MIN < 1 -#define S2B_1(i) S2B_0(i) S2B_0(i) -#endif -#if LG_TINY_MIN < 2 -#define S2B_2(i) S2B_1(i) S2B_1(i) -#endif -#if LG_TINY_MIN < 3 -#define S2B_3(i) S2B_2(i) S2B_2(i) -#endif -#if LG_TINY_MIN < 4 -#define S2B_4(i) S2B_3(i) S2B_3(i) -#endif -#if LG_TINY_MIN < 5 -#define S2B_5(i) S2B_4(i) S2B_4(i) -#endif -#if LG_TINY_MIN < 6 -#define S2B_6(i) S2B_5(i) S2B_5(i) -#endif -#if LG_TINY_MIN < 7 -#define S2B_7(i) S2B_6(i) S2B_6(i) -#endif -#if LG_TINY_MIN < 8 -#define S2B_8(i) S2B_7(i) S2B_7(i) -#endif -#if LG_TINY_MIN < 9 -#define S2B_9(i) S2B_8(i) S2B_8(i) -#endif -#if LG_TINY_MIN < 10 -#define S2B_10(i) S2B_9(i) S2B_9(i) -#endif -#if LG_TINY_MIN < 11 -#define S2B_11(i) S2B_10(i) S2B_10(i) -#endif -#define S2B_no(i) -#define SC(index, lg_grp, lg_delta, ndelta, psz, bin, pgs, lg_delta_lookup) \ - S2B_##lg_delta_lookup(index) - SIZE_CLASSES -#undef S2B_3 -#undef S2B_4 -#undef S2B_5 -#undef S2B_6 -#undef S2B_7 -#undef S2B_8 -#undef S2B_9 -#undef S2B_10 -#undef S2B_11 -#undef S2B_no -#undef SC -}; +uint8_t sz_size2index_tab[(SC_LOOKUP_MAXCLASS >> SC_LG_TINY_MIN) + 1]; + +static void +sz_boot_size2index_tab(const sc_data_t *sc_data) { + size_t dst_max = (SC_LOOKUP_MAXCLASS >> SC_LG_TINY_MIN) + 1; + size_t dst_ind = 0; + for (unsigned sc_ind = 0; sc_ind < SC_NSIZES && dst_ind < dst_max; + sc_ind++) { + const sc_t *sc = &sc_data->sc[sc_ind]; + size_t sz = (ZU(1) << sc->lg_base) + + (ZU(sc->ndelta) << sc->lg_delta); + size_t max_ind = ((sz + (ZU(1) << SC_LG_TINY_MIN) - 1) + >> SC_LG_TINY_MIN); + for (; dst_ind <= max_ind && dst_ind < dst_max; dst_ind++) { + sz_size2index_tab[dst_ind] = sc_ind; + } + } +} + +void +sz_boot(const sc_data_t *sc_data) { + sz_boot_pind2sz_tab(sc_data); + sz_boot_index2size_tab(sc_data); + sz_boot_size2index_tab(sc_data); +} |