Stefan Guggisberg wrote:
On Mon, 21 Mar 2005 09:48:10 +0100, Serge Huber <[EMAIL PROTECTED]> wrote:
Hi Michael,
Michael Wechner wrote:
Edgar Poce wrote:
IMHO ...
FileSystems
- LocalFileSystem
. Slow on window boxes
Why is it slow on Windows? (please apologize if I might have missed
that explanation somehow)
and how is it on UNIX/Linux?
I did some tests on Windows, and posted results a few months ago in this list. Basically the main problem is that NTFS directory creation operations are really slow (I'm guessing it's the journalling that's interfering here). I must also say that I was creating something like over 10'000 files in my tests.
Does anyone have any actual figures (especially compared with CQFS)?
have a look at http://article.gmane.org/gmane.comp.apache.jackrabbit.devel/595.
thanks very much for the hint
the results of those earlier tests showed that (on a windows box) ObjectPersistenceManager w/ CQFS is about 5-6 times faster than
ObjectPersistenceManager w/ LocalFileSystem.
the reason is that the windows file system really sucks when it comes to
storing a very large number of small files & folders.
right. We also experience that when building Lenya, because a lot of files are being copied during the build process and people building on Windows complain about it, whereas this isn't really a problem on Linux.
So I guess the LocalFileSystem should be quite alright when deployed
on Linux. I will try to do the same tests on Linux and will post the findings.
Thanks
Michi
cheers stefan
I don't have figure against CQFS but I do have some against Object serialization and my ORM persistence managers. The results are a bit dated now but they should be indicative of the problem of slow file creation under Windows.
You can find the results of my tests here : http://www.jahia.org/~loom/JackRabbit_Performance_Tests.pdf
Please note these are not very scientific, I was mostly trying to check if my ORM persistence managers where performing decently than actually trying to spend a lot of time on testing procedures.
Regards, Serge Huber.
-- Michael Wechner Wyona Inc. - Open Source Content Management - Apache Lenya http://www.wyona.com http://lenya.apache.org [EMAIL PROTECTED] [EMAIL PROTECTED]
