Re: [O] Speeding up agenda custom command with org-agenda-earlier & org-agenda-later

[Samuel Wales]

hehe we don't know if the rewrite will occur, or when.  :]

> I don't think is it planned. Feel free to implement it, if you want to.

> I consider Org agenda in dire need of rewriting, though. for better 
> scalability and easier maintenance.

for me, the biggest problem in all of emacs is the speed of 1-day and
2-day org agenda.  [i never need 30 days, or if i do, i'm willing to
have that take quite a few minutes just so that the 1-day and 2-day
speeds are maximized.]  i've done all of bastien's recommended speed
hacks and a couple more like turning off diary [which doesn't do much
but still].

regular text search is ok.  it's only the one that has to parse
timestamps that is slow.  profiling reveals nothing obvious so i
imagine it has been optimized thoroughly.

so for me, scalability means only scaling to more files [threading
useful here?] and larger files, and only for the daily agenda "a".
but i imagine a rewrite would maybe start from scratch.


On 6/22/18, Zongheng Yang <address@hidden> wrote:
> Cool, looking forward to see the rewrite!
>
> On Fri, Jun 22, 2018 at 1:49 PM Nicolas Goaziou <address@hidden>
> wrote:
>
>> Hello,
>>
>> Zongheng Yang <address@hidden> writes:
>>
>> > Here's an agenda custom command that acts as the main interface I
>> interact
>> > with org (in fact, emacs :)).
>> >
>> >   (setq org-agenda-custom-commands
>> >         '(("c" "Simple agenda view"
>> >            ((agenda "")
>> >             (tags "PRIORITY=\"A\""
>> >                   ((org-agenda-files '("~/org/work.org"
>> > "~/org/ideas.org
>> "))
>> >                    (org-agenda-skip-function '(org-agenda-skip-entry-if
>> > 'todo 'done))
>> >                    (org-agenda-overriding-header "High-priority
>> > tasks:")
>> >                    ))
>> >             (tags-todo "PRIORITY=\"C\""
>> >                        ((org-agenda-files '("~/org/work.org" "~/org/
>> > ideas.org"))
>> >                         (org-agenda-overriding-header "Long-term:")))
>> >             (alltodo ""
>> >                      ((org-agenda-skip-function
>> >                        '(or (zongheng-org-skip-subtree-if-priority ?A)
>> >                             (zongheng-org-skip-subtree-if-priority ?C)
>> >                             (org-agenda-skip-if nil '(scheduled
>> deadline))))
>> >                       (org-agenda-overriding-header "Other tasks:")))
>> >             ))))
>> >
>> > After I get into this view, I frequently issue many
>> > "org-agenda-earlier"
>> &
>> > "org-agenda-later" commands, often in a back-and-forth fashion, to
>> inspect
>> > what I've done around certain periods.
>> >
>> > In such a use case, it seems there's *no reason to not cache results*.
>> > Without such caching currently *the latency of switching is really
>> > high*;
>> > with such a caching, I'm happy to pay an one-time latency/CPU cost for
>> the
>> > first command, as long as successive commands can be sped up.
>> >
>> > Is a feature like this planned?
>>
>> I don't think is it planned. Feel free to implement it, if you want to.
>>
>> I consider Org agenda in dire need of rewriting, though. for better
>> scalability and easier maintenance.
>>
>> Regards,
>>
>> --
>> Nicolas Goaziou
>>
>


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