OK!

Thank you very much

/UlfO

 OK!
Probably we partly can solve this via some intelligent sorting, but I wanted to check this with you first.

/UlfO

Hi,

Is it possible to move a passwordfile from one E-log to another E-Log located on a different server without the need for users to register again?

Regards
/UlfO

Our group is interested in installing elog on a small/low-cost processing platform so that we can provide ready-to-run systems for our collaborators to use.  We selected a candidate platform form Technologic Systems, their wifibox-2 (http://www.embeddedarm.com/products/board-detail.php?product=TS-WIFIBOX-2).  This product is based on the TS7553 CPU board (http://www.embeddedarm.com/products/board-detail.php?product=TS-7553#) which has a 250MHz Cavium ARM9 CPU.

We have had good success getting the elogd executable cross-compiled for use on this platform and have a working system.  However, we are having significant issues with performance.  When we click the "New" item to enter a new event there is a noticable delay.  When clicking "Submit" there is a delay of approximately 10 seconds before the browser window displays the new event.  With the elogd running on other platforms (Virtual Machine or netbook) the delays for these actions are very small - typically less than a second or imperceptible.

So here are some specific questions:

- Is it reasonable to expect a 250 MHz ARM processor to serve an elog logbook with user acceptable performance?

- Our cfg file is attached.  Is there anything in the cfg file creating this performance problem.

- I have spent some time looking at this, and suspect that the delay is due to the cpu load of all the string manipulation and comparison operations (1200 calls to getcfg() on a submit).  Are there other candidate sources of performance issues that should be considered?

- Does anyone have any suggestions on how to improve our performance?

- Does anyone have a suggestion for an alternative small and low-cost COTS platform to use to host the elogd application?  (We would prefer to attain satisfactory performance on the Wifibox-2.)

Thanks for any help that can be offered.

Tim

 Yoshio,

Thanks for the suggestion.

We have actually tried running the elog server with a very minimal set of attributes, all of which were human entries, and still had response times that were entirely unacceptable.  So, unfortunately this path won't solve all our issues.

tt

 Stefan,

Thanks for your feedback. 

We had confirmed that the CPU load is running at at least 95% while these requests are being processed.  Additionally, we were attempting to use gprof to determine where the code was spending its time.  We have had several problems with trying to use gprof on that platform, both with using it for elog (we get seg faults) and then with using it on a small program created to test gprof on our particular setup (program runs; we get an output file; but all routines show that zero seconds were used).  So, unfortunately, I can not, at this point, provide a good idea of which routines are using the most CPU on this platform.  If we are able to get profiling results on this particular platform, I will certainly share them with you.

A possibly more relevant angle is that we have determined that executing floating-point operations seems to have a drastic impact on software execution times.  Can you point us to routines in the elogd code where floating point operations are taking place?

Thanks,

Tim

In the elogd.c file nearly at the very top is the following line:

char svn_revision[] = "$Id: elogd.c 2411 2011-04-01 14:39:35Z ritt $";

How does this information get into the source file?  Is it a script used when the svn changes are committed, or perhaps when they are checked out?  Any details or pointers to info on the web would be greatly appreciated.

Thanks.

Good Morning,

I would like to limit the ability to edit certain attributes in an ELOG logbook, depending on the user who is logged in.  I.e. if "guest" or a standard "login user" is logged in, I only want to allow the user to edit "attribute1" & "attribute2" of say, 5 attributes.  However, if an Admin user or specific user, say "Terry" or "Bob" is logged in, I want to allow ALL 5 attributes to be editable.  To expand on this, I may want to even limit the visibility of the attributes as well.

I've read though "Condition Attributes" section of the help page, but it is not clear to me how/if I can do this?  Is that section even relevant to what I want to accomplish?

Can anyone provide some guidance?

Thank you for your time & help!

Sincerely,

Terry