[huskerlug] Re: From Linux to FreeBSD: A FreeBSD Review - OSNews.com
- From: "Eric Penne" <epenne@xxxxxxxx>
- To: <huskerlug@xxxxxxxxxxxxx>
- Date: Sat, 10 Jan 2004 22:33:47 -0600 (CST)
VM as in virtual machine. I remember reading a bunch about it. The
scheduling of the process by the virtual machine can make a huge
difference in the performance.
I am totally talking out of my ass here. I have absolutely no clue how
any of the VM affects anything else. My knowledge is not based on actual
knowledge but regurgitated stuff I read in other places. I'm pretty sure
it is correct but I have no idea why. :)
Eric
> By VM you mean Virtual memory?
>
> If so then hardware has played a role in this. Even if Linux suffered =
> from
> the same fits as before the hardware has/would of come along to help it
> = out.
> During the 2.2 era RAM prices where high and boards that support lots of
> = RAM
> very costly, however today RAM is very cheap (in comparison) and boards
> = that
> support 4G are common. Plus RAM has gotten faster along with the CPUs
> meaning VM plays less of a role in system performance then it used to.
>
> Be interesting to see the same test ran before done on a newer system =
> just
> to see how much the hardware has help vs. code changes.
>
> But I laugh my alpha system's 2 CPUs L2 cache combined is the same as =
> one of
> our production 2.2 Linux systems. Amount of RAM used to be a big deal =
> now
> the speed of it matters way more than size funny how things change.
>
> I think there is more to argue over which Distro to use in Linux then =
> Linux
> as a whole vs. FreeBSD in the way of features performance and =
> functionality
> in their current states. Think of it more as a choice between salad or
> = soup
> on the side than beef or chicken as the main course. :)
>
> The chain of thought I put into deciding an OS for a system is
>
> Windows or *nix?
>
> If *nix:
>
> BSD or Linux?
>
> If Linux:
>
> RPM, deb or Scratch?
>
> Etc, etc you get the idea, just go thru the motions comparing until one
> remains.
>
> I meant to put this in my last reply, not to start a flame war or huge
> debate on the topic but ratter to show that it's more a matter of =
> personal
> choice on which OS you choose and why.
>
> http://www.linuxisforbitches.com/
>
> Like I said Salad or soup... And it seems some people are just big fans
> = of
> one and stick with it. Me I like variety so I'll continue to dabble in
> both.
>
> -----Original Message-----
> From: huskerlug-bounce@xxxxxxxxxxxxx =
> [mailto:huskerlug-bounce@xxxxxxxxxxxxx]
> On Behalf Of Steve
> Sent: Saturday, January 10, 2004 9:01 PM
> To: huskerlug@xxxxxxxxxxxxx
> Subject: [huskerlug] Re: From Linux to FreeBSD: A FreeBSD Review -
> OSNews.com
>
> FreeBSD used to have some real advantages over Linux, especially under =
> heavy
>
> load and the TCP/IP stack performance. Matt Dillon did an excellent job
> with=20
> the FreeBSD VM. Where Linux would often thrash under extremely high =
> loads=20
> and become unresponsive (to the point that you couldn't even log in),
> FreeBSD=20
> would just chug along slowly but surely. However, from about 2.4.18ish
> = on,=20
> the Linux VM has really come into its own and works quite well. Also, =
> the=20
> 2.4.x, the TCP/IP stack has improved significantly over the 2.2 series =
> and=20
> provides some stiff competition for FreeBSD.
>
> Since the 2.6 kernel implements Rik's rmap VM code, it really flies even
> under=20
> heavy loads (Rik has conversed with Matt about VM performance). =
> Several of
>
> the distro's backported this code to the 2.4 kernel (Suse, Redhat,=20
> Gentoo...), so many have already seen the benefits of it.
> =20
> I haven't seen any recent benchmarks, but I doubt FreeBSD has these same
> =
>
> advantages over Linux that it used to have. FreeBSD is a great OS, and
> = is=20
> still constantly improving just like Linux, but it doesn't have as large
> = of
> a=20
> developer community as Linux and thus doesn't tend to progress as =
> quickly.
>
> Steve
>
>
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