Hi We have a (small) 30 node sge based cluster with centos4 which will be growing to maximum 50 core duos. We use custom software that is based on gmake to launch parallel compilation and computations with lot of small files and some large files. We actualy use nfs and have a lot of problems with incoherencies between nodes.
I'm currently evaluating lustre and have some questions about lustre overhead with small files. I succesfully installed the rpms on a test machine and launched the local lmount.sh script. The first thing I tried is to make a svn checkout into it. (lot of small files...) It takes 1m54 from our local svn server versus 15s into a local ext3 filesystem and 50s over nfs network. During the checkout, the processor (amd64 3200) is busy with 90% system. How come is there so much system process? Is there something to tweak to lower this overhead? Is there a specific tweak for small files? Using multiple server nodes, will the performance be better? Thanks _______________________________________________ Lustre-discuss mailing list [email protected] http://lists.lustre.org/mailman/listinfo/lustre-discuss
