On 07/07/2011 10:01 AM, Papp Tamas wrote: > On 2011-07-07 15:42, Joe Landman wrote: >>> The same on the cluster volume is ~50-60 MB/s. >> >> >> This is what you expect over GE, more towards the lower end of the >> range (assuming a non-optimized driver and network stack). > > Why? It's GE, 60MB/s is about ~500Mbit. I expect to be at least > ~900Mbit. Am I dreaming?:) This is very dependent upon the IO patterns, driver, switch, port contention, ... We do see 900+ Mb/s (it makes more sense to talk about this in terms of MB/s). Best case you will see over a 1 GbE wire is about 117 MB/s +/- some. To get there, you need to be doing large enough writes/reads for it to be meaningful, not suffer port contention, and a few other things. [...] >> I don't understand this. What are your needs, and what are your >> expectations based upon those needs? Do you have the right equipment >> to meet the needs, or do you need to buy more/better equipment to meet >> the needs? > > 800-1000Mbit/s would be enough to me. Try removing the channel bond. > Actually I had never tested, that would be the optimal for our purposes. > We do the best from the tools we have, and if it's not enough, the boss > starting to think over it... > I know, this is not the best way, but we have this:) > > What can be the bottleneck for our system, GE? > Would 10GE for server help on this much more (single machines to cluster > connection). This is a complex and hard question to answer, and it involves a deep investigation of your system, the IO patterns, etc. > > > Thank you, > > tamas > > ps.: What do you mean on optimizing network stack, jumbo frame? > _______________________________________________ > Gluster-users mailing list > Gluster-users at gluster.org > http://gluster.org/cgi-bin/mailman/listinfo/gluster-users -- Joseph Landman, Ph.D Founder and CEO Scalable Informatics Inc. email: landman at scalableinformatics.com web : http://scalableinformatics.com http://scalableinformatics.com/sicluster phone: +1 734 786 8423 x121 fax : +1 866 888 3112 cell : +1 734 612 4615
