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Manually inline the call from getAndInitPage() to btreeGetPage() for a

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savings of 2.5 million cycles at a cost of less than 100 bytes.

FossilOrigin-Name: 7f65b96b4017413bd19624570efe8fb2b0f7b991
This commit is contained in:
drh
2015-06-27 15:51:06 +00:00
parent bbf0f867d2
commit 375beb0ec0
3 changed files with 13 additions and 10 deletions
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9
src/btree.c
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@@ -1848,7 +1848,7 @@ static MemPage *btreePageFromDbPage(DbPage *pDbPage, Pgno pgno, BtShared *pBt){
pPage->pDbPage = pDbPage;
pPage->pBt = pBt;
pPage->pgno = pgno;
pPage->hdrOffset = pPage->pgno==1 ? 100 : 0;
pPage->hdrOffset = pgno==1 ? 100 : 0;
return pPage;
}
@@ -1929,8 +1929,11 @@ static int getAndInitPage(
if( pgno>btreePagecount(pBt) ){
rc = SQLITE_CORRUPT_BKPT;
}else{
rc = btreeGetPage(pBt, pgno, ppPage, bReadonly);
if( rc==SQLITE_OK && (*ppPage)->isInit==0 ){
DbPage *pDbPage;
rc = sqlite3PagerAcquire(pBt->pPager, pgno, (DbPage**)&pDbPage, bReadonly);
if( rc ) return rc;
*ppPage = btreePageFromDbPage(pDbPage, pgno, pBt);
if( (*ppPage)->isInit==0 ){
rc = btreeInitPage(*ppPage);
if( rc!=SQLITE_OK ){
releasePage(*ppPage);