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Hi Martin, What do you mean by "interefes"? Is it just a matter of performance or can lead to problems? If it's just performance, I've seen that it's better to enable it. BR/Pablo On Wednesday 20 February 2008 17:41:53 Martin Radicke wrote: > 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