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SC: Make some key size classes static.

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The largest small class, smallest large class, and largest large class may all
be needed down fast paths; to avoid the risk of touching another cache line, we
can make them available as constants.
This commit is contained in:
David Goldblatt
2018-07-11 16:05:58 -07:00
committed by David Goldblatt
parent 5112d9e5fd
commit 55e5cc1341
18 changed files with 129 additions and 96 deletions
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6
src/ckh.c
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@@ -276,7 +276,7 @@ ckh_grow(tsd_t *tsd, ckh_t *ckh) {
lg_curcells++;
usize = sz_sa2u(sizeof(ckhc_t) << lg_curcells, CACHELINE);
if (unlikely(usize == 0
|| usize > sc_data_global.large_maxclass)) {
|| usize > SC_LARGE_MAXCLASS)) {
ret = true;
goto label_return;
}
@@ -321,7 +321,7 @@ ckh_shrink(tsd_t *tsd, ckh_t *ckh) {
lg_prevbuckets = ckh->lg_curbuckets;
lg_curcells = ckh->lg_curbuckets + LG_CKH_BUCKET_CELLS - 1;
usize = sz_sa2u(sizeof(ckhc_t) << lg_curcells, CACHELINE);
if (unlikely(usize == 0 || usize > sc_data_global.large_maxclass)) {
if (unlikely(usize == 0 || usize > SC_LARGE_MAXCLASS)) {
return;
}
tab = (ckhc_t *)ipallocztm(tsd_tsdn(tsd), usize, CACHELINE, true, NULL,
@@ -397,7 +397,7 @@ ckh_new(tsd_t *tsd, ckh_t *ckh, size_t minitems, ckh_hash_t *hash,
ckh->keycomp = keycomp;
usize = sz_sa2u(sizeof(ckhc_t) << lg_mincells, CACHELINE);
if (unlikely(usize == 0 || usize > sc_data_global.large_maxclass)) {
if (unlikely(usize == 0 || usize > SC_LARGE_MAXCLASS)) {
ret = true;
goto label_return;
}