Gentoo Archives: gentoo-portage-dev

From: Brian Harring <ferringb@g.o>
To: gentoo-portage-dev@l.g.o
Subject: Re: [gentoo-portage-dev] Cache rewrite backport
Date: Tue, 11 Oct 2005 22:15:14
Message-Id: 20051011221341.GB25169@nightcrawler
In Reply to: Re: [gentoo-portage-dev] Cache rewrite backport by Bastian Balthazar Bux
1 On Wed, Oct 12, 2005 at 12:01:12AM +0200, Bastian Balthazar Bux wrote:
2 > Sorry, but here the results are not those expected:
3 .51.22 vs .53_rc5... try with a vanilla .53_rc5 please
4
5
6 > ==== time emerge --metadata; 1st run; 2.0.51.22-r3
7 > real 2m24.419s
8 > user 0m12.329s
9 > sys 0m3.644s
10 >
11 > ==== time emerge --metadata; 2nd run; 2.0.51.22-r3
12 > real 1m17.700s
13 > user 0m12.257s
14 > sys 0m2.976s
15 >
16 > ==== time emerge --metadata; 1st run; 2.0.53_rc5 patched
17 > real 3m14.073s
18 > user 0m12.917s
19 > sys 0m9.433s
20 >
21 > ==== time emerge --metadata; 2nd run; 2.0.53_rc5 patched
22 > real 3m42.874s
23 > user 0m12.869s
24 > sys 0m9.333s
25
26 Wasn't expecting a massive improvement, although wasn't sure as hell
27 wasn't expecting a 3x increase in sys. :)
28
29 Should've seen a large tweak for the first .53_rc5 run also, since it
30 (essentially) would be a forced rewrite of the cache due to INHERITED
31 vs _eclasses_ key changes (moving eclass_cache into the backend).
32
33 Not running anything additional via /etc/portage/modules I'd bet, but
34 asking to verify also...
35
36 Meanwhile, thanks for testing; contrary to other results, but _any_
37 regression I'm after.
38 ~harring

Replies

Subject Author
Re: [gentoo-portage-dev] Cache rewrite backport Bastian Balthazar Bux <BastianBalthazarBux@×××××××××.it>