[R-pkg-devel] Winbuilder 'experimental' toolchain 4-5x slower than all other architectures

[Uwe Ligges]

Then this is specific to your package, see the overall timings for the 
whole CRAN check:

https://cran.r-project.org/web/checks/check_timings.html

which is 2379156 sec for old and 2516120 sec for the new toolchain, i.e. 
roughly a 6%. Given the machines runs with very different loads it could 
even be the other way round.

And for PerformanceAnalytics I get overall 418 sec for old and 446 sec 
(without vignettes each) for the new toolchain (again, load may have 
varied):
https://cran.r-project.org/web/checks/check_results_PerformanceAnalytics.html



Best,
Uwe Ligges



On 05.02.2020 16:32, Brian G. Peterson wrote:
> For every other architecture, Travis-CI and R-Hub take approximately
> 10-12 minutes to build and check PerformanceAnalytics.  On the Windows
> Rtools4 experimental toolchain, the build/check on Winbuilder and R-Hub
> take over an hour, sometimes as much as an hour and a half.
> 
> Non-trivial example timings are similarly 4-5x slower on the Windows
> experimental toolchain.
> 
> Brian
> 
> On Wed, 2020-02-05 at 14:59 +0000, Gábor Csárdi wrote:
>> Can you please show some numbers?
>>
>> Thanks,
>> Gabor
>>
>> On Wed, Feb 5, 2020 at 2:40 PM Brian G. Peterson <brian using braverock.com
>>> wrote:
>>> We've noticed over the past week that Winbuilder/R-Hub's
>>> 'experimental'
>>> Rtools4 toolchain images for Windows are approximately 4-5x slower
>>> than
>>> all other containers to build and check several packages we
>>> maintain.
>>>
>>> This affects everything, including example timings, where this
>>> architecture is the only architecture that shows any example run-
>>> times
>>> over 5 seconds. (including Windows under the older toolchain).
>>>
>>> Does CRAN expect us to optimize our code for the clearly non-
>>> performant
>>> 'experimental' Windows toolchain?
>>>
>>> I'd like to send a new version of our package PerformanceAnalytics
>>> to
>>> CRAN, but the Windows experimental toolchain is preventing a 100%
>>> clean
>>> set of checks.
>>>
>>>
>>> Regards,
>>>
>>> Brian
>>>
>>> --
>>> Brian G. Peterson
>>> ph: +1.773.459.4973
>>> im: bgpbraverock
>>>
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