Olaf van der Spek <[EMAIL PROTECTED]> writes:
> On 8/23/05, Marc Haber <[EMAIL PROTECTED]> wrote:
>> On Tue, 23 Aug 2005 01:42:18 +0200, Martin Pitt <[EMAIL PROTECTED]>
>> wrote:
>> >Something like this is in fact considered. Probably Ubuntu won't use
>> >pbuilder itself since it is not the most efficient implementation
>> >around, but rebuilding the buildd chroots from scratch would help to
>> >eliminate many FTBFS bugs due to polluted chroots.
>>
>> Surely you are aware how much time it takes to rebuild a chroot on
>> slower architectures. Some technology able to restore a large
>> directory tree to a static default in short time should be used here.
>
> What causes this long times? Slow IO?
Slow disks, slow/little ram, slow cpu. Restoring a chroot at 1MB/s
will take minutes.
But what is 5m to copy a clean chroot compared to the 60m to install
all the kde Build-Depends for a huge build and another 60m to remove
them again because one libs version isn't high enough to build
anything?
Also one doesn't need to do this every time, spreading the restore
time over multiple compiles makes that rather small per package.
MfG
Goswin
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