[LON-CAPA-users] Slow response from clicking on "Course Contents"
lee at math.usask.ca
Tue May 29 20:49:43 EDT 2012
I'm wondering if anyone else has a similar experience.
We upgraded Lon Capa from version 2.5.0-2007081514 to version
2.10.0-2011060317 in the summer of 2011. Since the upgrade, we always
notice that the response time after one clicks on "Course Contents" has
increased by about a factor of six.
More specifically, we run a Placement Test with 30 questions. Back
when we were using version 2.5.0, it took about 5 seconds (and in all cases
no more than 10 seconds) to get a total response from Lon Capa on the
status of all 30 questions (that is, which questions have/have not been
submitted, and how much time is left before timing out, etc).
But with version 2.10.0, we immediately noticed that it took about 15
to 20 seconds to get an initial response from the system on the first 15 to
18 questions, and then one has to wait for another 15 seconds or so to get
the rest of it from the system. All-in-all, after click on Course
Contents, it would generally take 30 to 35 seconds before one can tell
which questions have not been submitted and how much time is left. So
students and TAs are not eager to click on Course Contents, especially
toward the end of the test when time is close to running out.
I'm wondering whether this sluggish response to clicking on "Course
Contents" that we have been experiencing is unique to our installation.
There has been no change at all to our implementation of our Placement Test
since we started using 2.5.0. It is the same Test ("Course") that we cloned
every time we run it. I'm also wondering whether it has something to do
with our reliance on "Convert to images" for the "Force use of a specific
math rendering engine" parameter.
Math & Stats
Univ of Sask
More information about the LON-CAPA-users