Hi, On 02/08/2010 03:38 PM, Jim Fulton wrote: > I've just released 3.10.0a1: > > http://pypi.python.org/pypi/ZODB3/3.10.0a1#a1-2010-02-08 > > The main focus of this release is ZEO server performance. For > realistic benchmarks involving data stored on magnetic disk (as > opposed to SSD or RAM), I've seen speedups of 4x or more, primarily by > making the storage server multi- threaded. > > (BTW, speaking of SSD, we did a test recently using a combination of > SSD and magnetic disk. The database was around 1TB in size, with > around 900GB being blob data. We stored the non-blob data on an SSD > and blob data on a 14-spindle ISCSI magenetic storage systems. The > test involved playing back database requests recorded in production. > Mean load times with a 3.9 storage server without SSD were 73 > milliseconds. Using SSD for the non-blob data reduced this to 20 > milliseconds. Using the new ZEO implementation without SSD reduced the > mean load times to 16 milliseconds. The use of both SSD and and the > new ZEO reduced mean load times to around 4 milliseconds.) > > This release also includes a change to the way that file-storage > indexes are saved leading to make improvements in save and load times > and a 30% reduction in index file size.
That's good news. Thanks for all the work! -- Christian Theune · c...@gocept.com gocept gmbh & co. kg · forsterstraße 29 · 06112 halle (saale) · germany http://gocept.com · tel +49 345 1229889 0 · fax +49 345 1229889 1 Zope and Plone consulting and development _______________________________________________ For more information about ZODB, see the ZODB Wiki: http://www.zope.org/Wikis/ZODB/ ZODB-Dev mailing list - ZODB-Dev@zope.org https://mail.zope.org/mailman/listinfo/zodb-dev