Re: realloc suggestion
От | Karel Zak |
---|---|
Тема | Re: realloc suggestion |
Дата | |
Msg-id | Pine.LNX.3.96.1010123165549.10618B-100000@ara.zf.jcu.cz обсуждение исходный текст |
Ответ на | Re: realloc suggestion (Tom Lane <tgl@sss.pgh.pa.us>) |
Список | pgsql-hackers |
On Mon, 22 Jan 2001, Tom Lane wrote: > Karel Zak <zakkr@zf.jcu.cz> writes: > > I again a little look at aset code and I probably found small performance > > reserve in small chunks (chunk <= ALLOC_CHUNK_LIMIT) reallocation. > > Hmm. I wouldn't have thought that realloc got called often enough to be > worth optimizing, but it does seem to get called a few hundred times > during the regress tests, so maybe it's worth a little more code to do > this. (Looks like most of the realloc calls come from enlargeStringInfo > while dealing with long query strings --- since in this case the string > buffer is the only thing yet allocated in QueryContext, the special-case > check wins.) > > I've committed this change. Thanks for the suggestion! I love OpenSource and CVS source distribution model - only couple hours between idea and official source change :-) Karel
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