Date: Tue, 6 Nov 2012 09:54:39 -0800 From: Garrett Cooper <yanegomi@gmail.com> To: Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl> Cc: Yuri <yuri@rawbw.com>, "freebsd-hackers@freebsd.org" <freebsd-hackers@freebsd.org> Subject: Re: pgbench performance is lagging compared to Linux and DragonflyBSD? Message-ID: <A396E61A-10A4-40A1-B7FC-97AA2C0B7340@gmail.com> In-Reply-To: <alpine.BSF.2.00.1211061025210.18204@wojtek.tensor.gdynia.pl> References: <50980ADD.4010402@rawbw.com> <CAGH67wScvnE7gYzVVtfehYbVfM465vrLjP9bX4KXSp8Sq-25mA@mail.gmail.com> <alpine.BSF.2.00.1211061025210.18204@wojtek.tensor.gdynia.pl>
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On Nov 6, 2012, at 1:26 AM, Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl>= wrote: >> defaults) is sysctl/tunable variables set in the *BSD OSes (on DFly, >> FreeBSD, and NetBSD). Unfortunately (based on my experience) FreeBSD coul= d >> be a lot better when it comes to defaults, and more tuning is required to= >=20 > actually FreeBSD defaults are actually good for COMMON usage. and can be t= uned. >=20 > default MAXBSIZE is one exception. "Common usage" is vague. While FreeBSD might do ok for some applications (de= v box, simple workstation/laptop, etc), there are other areas that require a= dditional tuning to get better perf that arguably shouldn't as much (or ther= e should be templates for doing so): 10GbE and mbuf and network tuning; file= server and file descriptor, network tuning, etc; low latency desktop and sc= heduler tweaking; etc. Not to say that freebsd is entirely at fault, but because it's more of a com= modity OS that Linux, more tweaking is required... Thanks, -Garrett=
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