Re: patch: tsearch - some memory diet
Tom Lane <tgl@sss.pgh.pa.us>
From: Tom Lane <tgl@sss.pgh.pa.us>
To: Teodor Sigaev <teodor@sigaev.ru>
Cc: Pavel Stehule <pavel.stehule@gmail.com>, PostgreSQL Hackers <pgsql-hackers@postgresql.org>
Date: 2010-10-06T23:36:42Z
Lists: pgsql-hackers
Teodor Sigaev <teodor@sigaev.ru> writes: >> on 32bit from 27MB (3399 blocks) to 13MB (1564 blocks) >> on 64bit from 55MB to cca 27MB. > Good results. But, I think, there are more places in ispell to use hold_memory(): > - affixes and affix tree > - regis (REGex for ISpell, regis.c) I fixed the affix stuff as much as possible (some of the structures are re-palloc'd so they can't easily be included). It appears that hacking up regis, or any of the remaining allocations, wouldn't be worth the trouble. Using the Czech dictionary on a 32-bit machine, I see about 16MB going through the compacted-alloc code and only about 375K going through regular small palloc's. regards, tom lane