Thanks Kiran, I think snapshots were indeed part of the problem. I have been running that server since early 2007, with multiple grad students, and it had a ridiculous number of snapshot files. I think I've deleted about 1 GB so far.
-Marshall On May 30, 3:24 pm, Kiran Kedlaya <ksk...@gmail.com> wrote: > Followup: I think the underlying issue here was addressed in ticket > #5880. My problem was that I had a lot of old snapshots created by > pre-3.4.1 versions of sage, and they were tying the file system in > knots. I'm now running the script Gonzalo posted to #5880 that deletes > redundant snapshots; that should help. Marshall: might that help in > your case too? > > Kiran > > On May 30, 2:47 pm, Kiran Kedlaya <ksk...@gmail.com> wrote: > > > > > I just tried a test with 3.4.1, and I was seeing 100% CPU usage (and > > > > impressive memory usage) even when the notebook was idle. This is a > > > > Fedora 64 system, so I also tried using a patched 4.0.rc1 that > > > > upgraded python to 2.5.4 (since that fixed other memory issues); that > > > > way, I don't see any CPU usage on idle, but when I try to evaluate 2+2 > > > > I get 90+% CPU usage for 10+ seconds > > > > Does that happen *every* time, or just the first time? > > > . > > > Every time. > > > > > It also takes much longer to start and stop the notebook on this > > > > system than, say, on sage.math (20+ seconds versus maybe 2 seconds), > > > > out of proportion to the CPU speeds of the machines. > > > > Maybe your filesystem is slow? Are you using nfs? > > > The Sage install is on a local file system, but the sage_notebook > > directory is on nfs. If I force the notebook directory to be on the > > local file system, this doesn't seem to happen. > > > I suppose that means that I can get around this by moving the notebook > > directory. But it might be nice if there were another alternative in > > case someone doesn't have that option (i.e., some way to run the > > notebook with fewer file accesses). > > > Thanks! > > Kiran --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
