Maximum 0.02022958 seconds out of 10^6 runs for me, so no obvious problem on OS
X 10.9 (Snow Leopard build).
Matt
> library(microbenchmark)
> (timings <- microbenchmark(
+ normalizePath("\\\\some/network/drive", mustWork = FALSE),
+ times = 1e6,
+ unit = "s"
+ ))
Unit: seconds
expr min
normalizePath("\\\\\\\\some/network/drive", mustWork = FALSE) 8.877e-06
lq median uq max neval
9.428e-06 9.621e-06 9.86e-06 0.02022958 1e+06
> sessionInfo()
R version 3.1.1 (2014-07-10)
Platform: x86_64-apple-darwin10.8.0 (64-bit)
locale:
[1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8
attached base packages:
[1] graphics grDevices utils datasets stats methods base
other attached packages:
[1] microbenchmark_1.3-0
> .Platform
$OS.type
[1] "unix"
$file.sep
[1] "/"
$dynlib.ext
[1] ".so"
$GUI
[1] "AQUA"
$endian
[1] "little"
$pkgType
[1] "mac.binary"
$path.sep
[1] ":"
$r_arch
[1] ""
On 07 Sep 2014, at 10:07, Richard Cotton <richiero...@gmail.com> wrote:
> I'm having an issue with occasionally slow-running calls to
> normalizePath. If the path is a non-existent UNC path, then
> normalizePath sometimes takes 6 or 7 seconds to run, rather than its
> usual few microseconds. My big problem is that I can't reliably
> reproduce this across machines.
>
> The example below generates one or two slow runs out of 10000 on my
> Windows machine. I haven't been able to generate slow runs on my Linux
> machine, though I've had problems with slow running examples submitted
> to CRAN that I suspect may be caused by this.
>
> library(microbenchmark)
> (timings <- microbenchmark(
> normalizePath("\\\\some/network/drive", mustWork = FALSE),
> times = 1e4,
> unit = "s"
> ))
> boxplot(timings)
>
> Please can a few people run this code and see if they can reproduce the issue.
>
> It isn't clear to me whether this is a bug in R or an underlying OS or
> network problem.
>
> --
> Regards,
> Richie
>
> ______________________________________________
> R-devel@r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-devel
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