On Wednesday 28 September 2011 15:11:02 Tommaso Cucinotta wrote: > Il 28/09/2011 16:36, Rudi Gaelzer ha scritto: > > I don't know if this has already been reported. I made a quick scan > > through both the user and devel lists and couldn't find anything related. > > > > > > While editing a text riddled with mathematical formulae, I had to use > > advanced search several times to locate some mathematical expressions. > > Suddenly, my system started to crawl. The reason was that lyx was > > using almost all available memory. > > Hi Rudi, thanks for your report. I'll urgently look into possible memory > leaks due to this feature. In the mean time, any step-by-step > reproducible receipt leading to a show-up of the problem would be > greatly appreciated. > > > My fedora 15 desktop has 4GB RAM + 6GB swap. When I start lyx (version > > 2.0.1 fc15, fully updated), it uses about 1,5% of available memory. > > After performing the first advanced search, the memory used jumped to > > 5%. The memory usage just accrued for subsequent search operations, > > and all of a sudden lyx was using about 75% of all memory and all > > other applications started to get swapped. It seems like the search > > engine is not refreshing the results or intermediate data from > > previous searches, but simply keeps piling them up. > > > > > > Has anyone detected anything similar? > > actually not, I normally use 4GB of RAM, but while developing I normally > have very short sessions then I close the program. Recently, I wrote a > paper and I used quite a lot Advanced Search and Replace (for reworking > the math notation), with all-day long sessions, without noticing > anything (but before exhausting the 4 GB it may take a while -- also, > normally I work on short documents with let's say ten matches during a > search -- didn't try replacing hundreds of times in a big document yet). > > Can you just tell me what were the specific options used during your > searches ? For example, default options, or, were you changing the > "ignore format" option or others ? were you searching with regexps ? etc... > > Thanks, > > T.
The document I'm working right now has thousands of formulas and I've been
using the
advanced search pretty heavily. I can detect the increasing memory load even
with the
very simple text that I attached (memory.lyx). I was continually searching for
$e^{-x^2}$
and the memory load increased steadily; much slower, but increased
nevertheless...
As for the options I'm using, they're the default options (only Ignore format
checked).
On the other hand, regarding regexps, I did not pay attention to the
instructions in the
section 6.13.3 (Advanced usage) of the user guide. I simply entered the math
expression
inside the Find: window and performed the search. Would that make any
difference?
--
Rudi Gaelzer
Department of Physics
Institute of Physics and Mathematics
Federal University of Pelotas
BRAZIL
Registered linux user # 153741
memory.lyx
Description: application/lyx
