[darcs-users] Request for early user feedback on patch index darcs

[Aditya]

Hi,

 I am a student participating in Google Summer of Code for darcs. I work on
an optimization called patch index. I would like to get some feedback on my
project.

 Patch index improves the speed of changes and annotate commands by quickly
identifying the patches that modified a given file. This optimization
is especially useful for large repositories.

 The public repository is at: http://den.darcs.net/Aditya/darcs-patch-index

 Patch index will be automatically created upon get or init.

 If you run changes/annotate/record/.. using patch index darcs on an
existing repository, patch index will be created automatically.
Alternatively, run optimize --patch-index to exclusively create patch
index.

 You can disable patch index using optimize --no-patch-index, and enable it
back with optimize --patch-index. If you wish to disable patch index
at creation, pass --no-patch-index. A lazy get will implicitly disable
patch index, as you require to have all patches to create a patch index.

 I request users to try patch index darcs, and give feedback on potential
ui changes, bugs etc

 One of the concerns I already have is automatic creation of patch index on
existing repositories. The time it takes to create patch index increases
dramatically based on buffer
cache<http://oss.sgi.com/LDP/LDP/sag/buffer-cache.html>.
Creating a patch index just after get takes 6 sec, whereas it takes 1min
after cleaning the cache(This is for darcs development repo). This suggests
that a user could experience a potentially large delay on changes/record/..
.

BSRK Aditya
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