Wednesday July 05, 2006 Today's Page Hits: 124
Wednesday July 05, 2006 As I stated previously
SVN and SVK have filled the void in my heart related to Distributed
Version Control.
SVK "plays well with others", the company formerly known as SevenSpace used CVS to track changes to more than 20K configuration files. Unfortunately the CVS server is horribly IO bound and even working on a fast link is painfully slow.
MirrorVCP describes the general use of SVK to mirror other repositories. The problem I faced was my general level of impatience waiting on synchronization with the CVS server. Originally I thought the problem was strictly on the server side, but I later realized that a cvs update was significantly faster.
While poking around to try and figure out what was going on to make it so slow I found FasterMirrorCVS which drastically decreased the time to pull changes from the CVS repository. The FasterMirrorCVS page indicated that one of the outstanding issues with the change was a lack of support for more than one module from the same CVSROOT. So I extended the patch a bit and added support for multiple modules, informational and error logging and more error checking.
The quick overview from FasterMirrorCVS
Technorati Tags: SVK, SVN, CVS, SCM
SVK "plays well with others", the company formerly known as SevenSpace used CVS to track changes to more than 20K configuration files. Unfortunately the CVS server is horribly IO bound and even working on a fast link is painfully slow.
MirrorVCP describes the general use of SVK to mirror other repositories. The problem I faced was my general level of impatience waiting on synchronization with the CVS server. Originally I thought the problem was strictly on the server side, but I later realized that a cvs update was significantly faster.
While poking around to try and figure out what was going on to make it so slow I found FasterMirrorCVS which drastically decreased the time to pull changes from the CVS repository. The FasterMirrorCVS page indicated that one of the outstanding issues with the change was a lack of support for more than one module from the same CVSROOT. So I extended the patch a bit and added support for multiple modules, informational and error logging and more error checking.
The quick overview from FasterMirrorCVS
Given the following two repositories with max symmetric network transit speeds of ~330KB/s on a single file scp.
The same sync operation was performed both with and without caching enabled. No updates were pending in either direction. The CVS server is highly IO bound and I would expect greater improvements from a faster source.
389MB 20322 files //mirror/cvs/ops cvs::ext:sferry@cvs:cvsroot:ops...
No Cache: svk sync --all //mirror/cvs/ops 176.94s user 59.24s system 13% cpu 28:26.70 total
Cache: svk sync --all //mirror/cvs/ops 29.81s user 17.10s system 4% cpu 18:37.83 total
6.2MB 178 files //mirror/cvs/dev cvs::ext:sferry@cvs:cvsroot:dev...
No Cache: svk sync --all //mirror/cvs/dev 7.28s user 1.14s system 20% cpu 40.908 total
Cache: svk sync --all //mirror/cvs/dev 5.59s user 0.65s system 30% cpu 20.502 total
Technorati Tags: SVK, SVN, CVS, SCM
Comments:
Post a Comment:
Comments are closed for this entry.