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Hi Pablo, first of all thanks for looking into using proof in combination with dCache, I guess you are a pioneer in this area. I just want to say that "read-ahead" in ROOT's DCap-client is switched of by default for good reason, because most of the internal Tree-based structures of ROOT use their own kind of preread-mechanism, which interferes with the one provided by the Dcap-client. We saw this in the past, that's why by default read-ahead is disabled. Cheers, Martin > Hi all, > > I would like to share with you some information about my testings of > performance in Proof with different storage schemas. > > http://root.cern.ch/phpBB2/viewtopic.php?t=6236 > > I have translated this topic to the Proof Forum since seems to me more > Proof-related than just xrootd, I hope you don't mind. > > BR/Pablo -- Martin Radicke - IT - Deutsches Elektronen-Synchrotron DESY Notkestrasse 85 D-22607 Hamburg Fon: +49 40 8998 3639 Fax: +49 40 8994 3639