Re: [gentoo-user] Portage 50-51% and emerge metadata timings

[Ciaran McCreesh]

On Wed, 28 Dec 2005 11:22:07 -0500 Jerry McBride
[EMAIL PROTECTED] wrote:
| All the gentoo systems that I admin show the same slow down at about
| 51%. I dearly wish we'd get away from a file based database. And
| before everyone jumps on me about the various database backend
| patches that I can apply to get what I cry for... I've tried them...
| None of them put all the data into a real database... A shame
| too

Wrong solution. You do realise that the updating Portage cache thing
is due to a Portage deficiency, and that the real cache is centrally
generated, right?

-- 
Ciaran McCreesh : Gentoo Developer (I can kill you with my brain)
Mail: ciaranm at gentoo.org
Web : http://dev.gentoo.org/~ciaranm



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Re: [gentoo-user] Portage 50-51% and emerge metadata timings

[Ciaran McCreesh]

On Wed, 28 Dec 2005 14:16:39 -0500 Jerry McBride
[EMAIL PROTECTED] wrote:
|  Wrong solution. You do realise that the updating Portage cache
|  thing is due to a Portage deficiency, 
| 
| Portage deficency? You mean the fact that python scans some
| thousands of files in the file based database, writing as it goes?

Nope. The fact that Portage uses that second level of cache at all.

|  and that the real cache is centrally generated, right?
| 
| Yup, from thousands of files in the file based database...
| 
| Portage is a wonderful tool for package management, but the sheer
| size of the beast begs for movig it to C and a proper database. I
| remember in the early days of my gentoo experience that portage
| wasn't a bother. But as ebuilds are added to portage and my choice of
| installed ebuilds grows... portage has become quite a slug
| performance wise. I guess this is where the IT types step in and say
| it scales poorly.

The scalability issues have nothing to do with us using files.

-- 
Ciaran McCreesh : Gentoo Developer (I can kill you with my brain)
Mail: ciaranm at gentoo.org
Web : http://dev.gentoo.org/~ciaranm



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