From jori@mey@ @ending from gm@il@com  Tue Sep 18 17:28:11 2018
From: jori@mey@ @ending from gm@il@com (Joris Meys)
Date: Tue, 18 Sep 2018 17:28:11 +0200
Subject: [Rd] memory footprint of readRDS()
Message-ID: <CAO1zAVYNvp6ykmEAqdXx9rGZyniu=3ih8MfgWD1VZ5ty+OB6zw@mail.gmail.com>

Dear all,

I tried to read in a 3.8Gb RDS file on a computer with 16Gb available
memory. To my astonishment, the memory footprint of R rises quickly to over
13Gb and the attempt ends with an error that says "cannot allocate vector
of size 5.8Gb".

I would expect that 3 times the memory would be enough to read in that
file, but apparently I was wrong. I checked the memory.limit() and that one
gave me a value of more than 13Gb. So I wondered if this was to be
expected, or if there could be an underlying reason why this file doesn't
want to open.

Thank you in advance
Joris

-- 
Joris Meys
Statistical consultant

Department of Data Analysis and Mathematical Modelling
Ghent University
Coupure Links 653, B-9000 Gent (Belgium)
<https://maps.google.com/?q=Coupure+links+653,%C2%A0B-9000+Gent,%C2%A0Belgium&entry=gmail&source=g>

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[Rd] memory footprint of readRDS()
Joris Meys