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Re: [O] Bug? R: Org babel block execution *drastically* slower than in E

From: John Hendy
Subject: Re: [O] Bug? R: Org babel block execution *drastically* slower than in ESS session directly
Date: Wed, 31 Oct 2012 15:23:53 -0500

On Wed, Oct 31, 2012 at 3:12 PM, <address@hidden> wrote:
John Hendy <address@hidden> writes:

> On Wed, Oct 31, 2012 at 11:41 AM,  <span dir="ltr"><mailto:address@hidden></span> wrote:
> John Hendy <mailto:address@hidden> writes:
>> I edited the subject to be more concise/clear.I let orgmode chug away
>> on reading in some ~10-30mb csv files for nearly 30min.
> [rest deleted]
> You need an ECM.I did my best to provide one, other than the file, which I offered to provide if others requested that I upload it somewhere. Since you have done so, so have I:
> - https://docs.google.com/open?id=0BzQupOSnvw08WHdabHh5VVczRGM

> Let me know if that doesn&#39;t work. I put it on Google docs and sometimes have issues with the sharing settings...

Not an ECM in my book, but ...

What else would you like? I provided:
- the config
- the data
- how to [attempt to] reproduce
- the org-mode text

On my 4 year old MacBook:

| #+PROPERTY: session *R*
| #+name: bigcsv
| #+begin_src R
| bigcsv <- Sys.glob("~/Downloads/*.csv")
| #+end_src
| #+RESULTS: bigcsv
| : /Users/cberry/Downloads/test-file.csv
| #+name: readbig
| #+begin_src R :results output
|   system.time(
|     tmp <- read.csv(bigcsv)
|     )
| #+end_src
| #+RESULTS: readbig
| :    user  system elapsed
| :   5.679   0.306   6.002

About the same as running from ESS.

Not sure what to say. Looking for ways to troubleshoot or confirm. Since you can't confirm, any suggestions on where I should look for my issue? I can't explain it! All I know is that org chugs and chugs and the direct execution in ESS session is lightning fast.


> dim(tmp)
[1] 964805      9

Was that just to show the size, or is something wrong with my file?

Thanks for attempting to replicate!
[ rest deleted ]

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