Some key parameters are at the top: - single shared file - striped over 7 and 8 OST's - liblustre clients (i.e. no caching, server side locking) - application is doing 4MB IO's
It would be good to know that is the stripe_size (default is 4 or 8 MB I think), and the precise IOR parameters used to create this run. - Peter - > -----Original Message----- > From: Jean-Marc Saffroy [mailto:[EMAIL PROTECTED] > Sent: Wednesday, November 15, 2006 6:55 AM > To: Peter J Braam > Cc: [email protected] > Subject: Re: [Lustre-devel] Wide striping puzzles > > Hi Peter, > > On Tue, 14 Nov 2006, Peter J Braam wrote: > > > We are not seeing this everywhere, and I am sending this message to > > provoke sufficient response from the community to hopefully lead to > > some understanding. > > That sounds like a very interesting problem, however we have > no idea what workload and system were used to give these figures. > > Could you tell us a bit more? > > > -- > Jean-Marc Saffroy - [EMAIL PROTECTED] _______________________________________________ Lustre-devel mailing list [email protected] https://mail.clusterfs.com/mailman/listinfo/lustre-devel
