On Tue, Mar 02, 2004 at 07:06:31PM +0100, Dieter Maurer wrote: (snip) > I interpreted these observations in the following way: > > * time is dominated by the disc access > > * time is largely independent of the object size (if > the object is in the OS disc cache) > > * ZEO overhead is about 1 to 3 ms per object.
Hmm. I wondered if ZEO overhead per-object was significant, but this seems not too bad. If I read OFS/Image.py correctly, the pdata chunks are 65536 bytes. So a 40 MB file would split up into about 640 chunks, so ZEO overhead by your calculations should be roughly 1-2 seconds. This does not account for the order of magnitude difference I am seeing (initial load from filestorage: 0:03.87, initial load from zeo: 0:33.54). -- Paul Winkler http://www.slinkp.com Look! Up in the sky! It's PROTO FLASH TROMBONIST! (random hero from isometric.spaceninja.com) _______________________________________________ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
