revlogng results in smaller indexes, can address larger data files, and
supports flags and version numbers.
By default the original revlog format is used. To use the new format,
use the following .hgrc field:
[revlog]
# format choices are 0 (classic revlog format) and 1 revlogng
format=1
revlog.group cached every chunk from the revlog, the behaviour was
needed to minimize the roundtrip with old-http.
We now cache the revlog data ~4MB at a time.
The memory used server side when pulling goes down to 35Mo maximum
whereas without the patch more than 160Mo was used when cloning the linux kernel
repository.
The time used by cloning is higher mainly because of the check in revlog.revision.
before
110.25user 20.90system 2:52.00elapsed 76%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+708707minor)pagefaults 0swaps
after
117.56user 18.86system 2:50.43elapsed 80%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+748366minor)pagefaults 0swaps
- create new statichttprepo class
- pull remote bits out of localrepo
- pull remote bits out of util.opener
- switch hg.repository to use statichttprepo
