Date: Thu, 17 Jul 2014 20:15:39 +0430 From: Hooman Fazaeli <hoomanfazaeli@gmail.com> To: Konstantin Belousov <kostikbel@gmail.com> Cc: performance@freebsd.org, current@freebsd.org Subject: Re: PostgreSQL performance on FreeBSD Message-ID: <53C7EFA3.3070100@gmail.com> In-Reply-To: <20140716132938.GB93733@kib.kiev.ua> References: <20140627125613.GT93733@kib.kiev.ua> <20140716132938.GB93733@kib.kiev.ua>
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On 7/16/2014 5:59 PM, Konstantin Belousov wrote: > On Fri, Jun 27, 2014 at 03:56:13PM +0300, Konstantin Belousov wrote: >> Hi, >> I did some measurements and hacks to see about the performance and >> scalability of PostgreSQL 9.3 on FreeBSD, sponsored by The FreeBSD >> Foundation. >> >> The results are described in https://kib.kiev.ua/kib/pgsql_perf.pdf. >> The uncommitted patches, referenced in the article, are available as >> https://kib.kiev.ua/kib/pig1.patch.txt >> https://kib.kiev.ua/kib/patch-2 > A followup to the original paper. > > Most importantly, I identified the cause for the drop on the graph > after the 30 clients, which appeared to be the debugging version > of malloc(3) in libc. > > Also there are some updates on the patches. > > New version of the paper is available at > https://www.kib.kiev.ua/kib/pgsql_perf_v2.0.pdf > The changes are marked as 'update for version 2.0'. Thanks for the great work! Did you tested the effect of hyper-threading (on or off) on the results? -- Best regards. Hooman Fazaeli
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