[Users] [Bug 4320] New: Optmize the speed of RSS feeds update

[noreply at thewildbeast.co.uk]

https://www.thewildbeast.co.uk/claws-mail/bugzilla/show_bug.cgi?id=4320

            Bug ID: 4320
           Summary: Optmize the speed of RSS feeds update
           Product: Claws Mail
           Version: GIT
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P3
         Component: Plugins/RSSyl
          Assignee: users at lists.claws-mail.org
          Reporter: bugreporter at riseup.net

I notice that upldating RSS feeds takes much more time compared to newsboat. To
benchmark this I eliminate the network effects

1. I fetch all web feeds in local XML files.
2. I use a web server running on localhost
3. I use the localhost URLs in Claws Mail

So a test with 85 URLs shows:

Claws Mail: 11-50 seconds (the smaller time is when feeds have recently been
updated)

newsboat (regardless of frequency of reloads) takes 1-2 secs:

$ time newsboat -x reload

real    0m2.321s
user    0m0.526s
sys     0m0.251s

Tested with version Claws Mail 3.17.4git95 and newsboat 2.11.1

It would be good to optimize the speed of refreshing if possible because with
"real" (not locally cached) feeds the situation is actually far worse. Perhaps
refreshing feeds using parallel threads rather than sequentially.

Disclaimer: I don't know if newsboat uses threads but it is much much faster.

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