Re: Emacs memory management and sluggishness

[Joseph Mingrone]

Eli Zaretskii <address@hidden> writes:

>> From: Joseph Mingrone <address@hidden>
>> Date: Wed, 31 Jul 2019 19:27:06 -0300
>> Cc: address@hidden

>> > How many pages of those 1200 you viewed? Do you use PDF-Tools or Doc
>> > View? If you execute `garbage-collect' does the memory go down?

>> > I'm asking all this because one of the possibilities is a leak on the
>> > image handling code.

>> I just tried it again and held down 'n' to visit all pages and the
>> memory stayed under 500 MB.  I am using pdf-tools v0.90.  I also just
>> tried with
>> https://file-examples.com/wp-content/uploads/2017/10/file-example_PDF_1MB.pdf
>> and the memory stayed under 400 MB.  I'm somewhat confident that I
>> encountered memory issues in an Emacs instance without visiting a PDF
>> file.

> What image library is used for that?  Is it ImageMagick or is it
> something else?

From https://github.com/politza/pdf-tools

It uses poppler to render PDFs.  "...there is one feature (following
links of a PDF document by plain keystrokes) which requires
imagemagick’s convert utility."

When I woke this morning, memory usage went from about 200-300 MB to
about 3 GB overnight.  No PDFs were open.

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