| 1 |
Ulrich Mueller a écrit : |
| 2 |
> Speaking about statistics: Either I have missed it, or so far nobody |
| 3 |
> has presented any solid numbers showing what the benefit of |
| 4 |
> --as-needed in terms of memory usage or program startup time is. |
| 5 |
|
| 6 |
The reduction in startup time may not be noticeable. |
| 7 |
|
| 8 |
The real win is when low level libs change ABI, like expat. On a |
| 9 |
standard Gnome system, without --as-needed, I had over 280 packages to |
| 10 |
rebuild (that was a very slow Duron 700Mhz, I ended up moving to |
| 11 |
--as-needed and did emerge -e world). |
| 12 |
|
| 13 |
On my other box which had had --as-needed for a while (so some useless |
| 14 |
rebuild could have been further avoided), I only had around 45 packages. |
| 15 |
|
| 16 |
And for the sake of the thread, had libtool been smarter, I'm sure that |
| 17 |
the final number could have gone down to 20 or so packages. |
| 18 |
|
| 19 |
My opinion: |
| 20 |
- we need --as-needed because it's useful (maybe ld could echo the |
| 21 |
libs that's it's dropping and then we could have a QA warning?) |
| 22 |
- we *do* need to fix libtool too |
| 23 |
- we need to make sure upstream packages provide correct .pc files |
| 24 |
|
| 25 |
Just a thought :) |
| 26 |
|
| 27 |
Rémi |
| 28 |
-- |
| 29 |
gentoo-dev@l.g.o mailing list |
Archives