Re: [Pan-users] Inefficiencies in Pan threading?

[Wolf J. Flywheel]

On Saturday 13 September 2003 21:05, Calin A. Culianu wrote:

> downloading binary attachements.  Namely, I have a queue of tens of
> megabytes worth of attachements in my task list, but Pan is only using
> 1 thread at a time to download these binaries (I specified a connection
> limit of 4 in the server config UI).  This doesn't sound so bad,

        I'm sure I won't be the only one to bring this up, but behind the 
scenes 
Pan actually *is* using all 4 connections.  (Well, it should be... do you 
have a bandwidth monitor such as gkrellm?  That should show you.)  A few 
revisions ago, the behavior was changed from grabbing chunks of 4 
different binaries concurrently to grabbing 4 chunks of the same one.  
However, since it's only working on one "thing" at a time, you'll only 
see one item in the status bar.  You may notice more there if it's near 
the end of one, and therefore it's waiting for one or more threads to 
finish working on #1, but other threads have moved on to #2.

        BTW, the extreme lower left of Pan's window shows the number of tasks; 
it 
should look like "3 @ 150.2 KB/s" or such while things are downloading.  
That's saying, "I have 3 connections going, and together they're using 
150.2 KB per second."  

        I hope this was helpful in some way.  :)  For way more info than you 
need, see /usr/share/doc/pan-0.14.2/ChangeLog.gz -- discussion of this 
business takes place around line 2358.  (Oh, I see you're on 0.14.0... 
not sure where it would be in that changelog, but search for 
"pan/task-state.[ch]: new object.  This object is used by tasks".  0.14.2 
is in Portage now, though!)

-- 
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