Re: [HACKERS] Improve compression speeds in pg_lzcompress.c

sed as this purpose. http://archives.postgresql.org/pgsql-hackers/2012-03/msg00971.php regards, -- Takeshi Yamamuro NTT Cyber Communications Laboratory Group Software Innovation Center (Open Source Software Center) Tel: +81-3-5860-5057 Fax: +81-3-5463-5490 Mail:yamamuro.take...@lab.ntt.co.jp -- Sent

Re: [HACKERS] Improve compression speeds in pg_lzcompress.c

So why don't we use LZ4? +1 Agree though, I think there're still patent issues there. regards, -- ---- Takeshi Yamamuro NTT Cyber Communications Laboratory Group Software Innovation Center (Open Source Software Center) Tel: +81-3-5860-5057 Fax: +81-3-5463-5490 Mail:yam

Re: [HACKERS] Improve compression speeds in pg_lzcompress.c

;m misreading it he has about a 2.5 > times speed improvement but about a 20% worse compression result. > > What would be interesting would be to see if the knobs he's tweaked > could be tweaked a bit more to give us substantial speedup without > significant space degradation.

[HACKERS] Improve compression speeds in pg_lzcompress.c

, the compression speed overcomes those in gzip and bzip2. Anyway, the compression speed in lz4 is very fast, so in my opinion, there is a room to improve the current implementation in pg_lzcompress. regards, -- Takeshi Yamamuro NTT Cyber Communications Laboratory Group Software Innovation C