1. 11 Oct, 2010 1 commit
    • Leigh B Stoller's avatar
      Work on an optimization to the perl code. Maybe you have noticed, but · 92f83e48
      Leigh B Stoller authored
      starting any one of our scripts can take a second or two. That time is
      spent including and compiling 10000s of thousands of lines of perl
      code, both from our libraries and from the perl libraries.
      
      Mostly this is just a maintenance thing; we just never thought about
      it much and we have a lot more code these days.
      
      So I have done two things.
      
      1) I have used SelfLoader() on some of our biggest perl modules.
         SelfLoader delays compilation until code is used. This is not as
         good as AutoLoader() though, and so I did it with just a few 
         modules (the biggest ones).
      
      2) Mostly I reorganized things:
      
        a) Split libdb into an EmulabConstants module and all the rest of
           the code, which is slowly getting phased out.
      
        b) Move little things around to avoid including libdb or Experiment
           (the biggest files).
      
        c) Change "use foo" in many places to a "require foo" in the
           function that actually uses that module. This was really a big
           win cause we have dozens of cases where we would include a
           module, but use it in only one place and typically not all.
      
      Most things are now starting up in 1/3 the time. I am hoping this will
      help to reduce the load spiking we see on boss, and also help with the
      upcoming Geni tutorial (which kill boss last time).
      92f83e48
  2. 30 Jun, 2010 1 commit
  3. 16 Jul, 2007 1 commit
  4. 28 May, 2007 1 commit
    • Leigh B. Stoller's avatar
      Implement two requests by Eric: · e12ea1e2
      Leigh B. Stoller authored
      * The checkout directory now includes just the datastore directory and
        tbdata/nsfile.ns. This removes a bunch of clutter.
      
      * You can now run template_commit in any subdir of a checkout; the
        python wrapper will crawl upwards looking for the .template file.
      
        Note that I removed the option that allowed you to do a commit from
        the template tree in /proj/pid/templates since that directory will
        ultimately go away (or at least hide from view), and cause it
        conflicted with the new option and I didn't want to make things any
        messier for no reason.
      e12ea1e2
  5. 23 May, 2007 1 commit
  6. 16 May, 2007 1 commit
  7. 15 May, 2007 1 commit
    • Leigh B. Stoller's avatar
      Checkpoint changes that have been discussed in the last few weeks: · c4f53202
      Leigh B. Stoller authored
      * Records are now "help open" when a run is stopped. When the next run
        is started, a check is made to see if the files
        (/project/$pid/exp/$eid) have changed, and if so a new version of the
        archive is committed before the next run is started.
      
      * Change the way swapmod is handled within an instance. A new option
        on the ShowExp page called Modify Resources. The intent is to allow
        an instance to be modified without having to start and stop runs,
        which tends to clutter things up, according to our user base. So, if
        you are within a run, that run is reset (reused) after the swapmod is
        finished. You can do this as many times as you like. If you are
        between runs (last operation was a stoprun), do the swapmod and then
        "speculatively" start a new run. Subsequent modifies reuse the that
        run again, as above.
      
        I think this is what Kevin was after ... there are some UI issues
        that may need to be resolved, will wait to hear what ...
      c4f53202
  8. 07 May, 2007 1 commit
    • Leigh B. Stoller's avatar
      Mostly this commit is the switch from SVN archives to ZIP archives. · 55d1bb6e
      Leigh B. Stoller authored
      Other stuff leaked in too ...
      
      I did separate out a lot of tbsetup/libArchive into db/Archive, and
      whats left in libArchive.pm will eventually move over into the
      Template library.
      
      Note that I have dropped archiving of plain experiments; this is not
      really owrth it outside the workbench context, and it just wastes
      space and makes a lot if stuff painful in the web interface.
      55d1bb6e