Re: [Rpm-maint] Fingerprinting skipDir() brokenness ponderings
On Wed, 13 Jun 2007, Bill Nottingham wrote: Panu Matilainen ([EMAIL PROTECTED]) said: 1) Remove the "temporary" skipDir() hack dating back to 2002 completely. + Is really the responsible and right thing to do. + Fixes the shared files problems. - Memory consumption goes sky-high and performance degrades badly. This might not be that much of a problem in most modern systems but for eg OLPC is likely to be a showstopper. I'd argue that this is the simplest solution. Where the memory and CPU usage skyrockets is with large number of kernel-devel packages, and all the Red Hat/Fedora systems limit this already with things like installonlyn. Then, in a later release, fix fingerprinting the right way. It's certainly by far the simplest solution, and also the only 100% correct one. Whether the consequences are acceptable in real world usage is another question - maybe we should put it into Fedora rawhide for a test-drive and see if it explodes :) - Panu - ___ Rpm-maint mailing list Rpm-maint@lists.rpm.org https://lists.rpm.org/mailman/listinfo/rpm-maint
Re: [Rpm-maint] Fingerprinting skipDir() brokenness ponderings
Panu Matilainen ([EMAIL PROTECTED]) said: > 1) Remove the "temporary" skipDir() hack dating back to 2002 completely. > + Is really the responsible and right thing to do. > + Fixes the shared files problems. > - Memory consumption goes sky-high and performance degrades badly. This > might not be that much of a problem in most modern systems but for eg > OLPC is likely to be a showstopper. I'd argue that this is the simplest solution. Where the memory and CPU usage skyrockets is with large number of kernel-devel packages, and all the Red Hat/Fedora systems limit this already with things like installonlyn. Then, in a later release, fix fingerprinting the right way. Bill, commenting from the peanut gallery ___ Rpm-maint mailing list Rpm-maint@lists.rpm.org https://lists.rpm.org/mailman/listinfo/rpm-maint
Re: [Rpm-maint] Fingerprinting skipDir() brokenness ponderings
On Wed, 2007-06-13 at 11:33 +0300, Panu Matilainen wrote: > 1) Remove the "temporary" skipDir() hack dating back to 2002 completely. > + Is really the responsible and right thing to do. > + Fixes the shared files problems. > - Memory consumption goes sky-high and performance degrades badly. This >might not be that much of a problem in most modern systems but for eg >OLPC is likely to be a showstopper. FWIW, OLPC doesn't use RPM. ~spot ___ Rpm-maint mailing list Rpm-maint@lists.rpm.org https://lists.rpm.org/mailman/listinfo/rpm-maint
Re: [Rpm-maint] Fingerprinting skipDir() brokenness ponderings
On Wed, Jun 13, 2007 at 11:33:48AM +0300, Panu Matilainen wrote:
> And I wonder about jbj's concerns like the > 65K files in package in
> https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=140055#c11 - what
> exactly happens then with the tagged fileindexes?
This is no issue: if there are more that 64K files, fingerprinting
is turned off. Bit 31 says that there is a fingerprint; if it is
set, we have 15 bits of tag and 16 bits of index. If it is cleared,
we have 31 bits if index, which should be enough.
Cheers,
Michael.
--
Michael Schroeder [EMAIL PROTECTED]
SUSE LINUX Products GmbH, GF Markus Rex, HRB 16746 AG Nuernberg
main(_){while(_=~getchar())putchar(~_-1/(~(_|32)/13*2-11)*13);}
___
Rpm-maint mailing list
Rpm-maint@lists.rpm.org
https://lists.rpm.org/mailman/listinfo/rpm-maint
