On 12/10/09, William Stein <wst...@gmail.com> wrote: > 1. "maxima opens the root directory / and stats each file found there. > Then it does the same thing for the /u (home) directory. The sys > admin believes the bottleneck is the slow response of doing a stat on > each NFS home directory, especially slowed down by the home > directories that are remotely NFS mounted from across the country."
My first guess is that the Maxima build was misconfigured and Maxima doesn't have the right value of *MAXIMA-SHAREDIR*. What does "maxima --directories" report? Maxima tries to construct the list of share directories at run time. I'm guessing it's looking at / in the mistaken belief that it's the top of the share directory. > 2. The user reports that "maxima reads the file > local/lib/ecl-9.10.2/sysfun.lsp one character at a time doing 72K > read() calls of one character each. The sys admin doubts that is anywhere > near the > problem of the NFS stat calls, but it does seem inefficient." Well, when I try it, I see sysfun.lsp being read in blocks of 8 K. Dunno why it would try to read it one byte at a time. Maybe ECL tried to determine a suitable block size and failed? Just a guess. FWIW Robert Dodier -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
