Displaying 5 results from an estimated 5 matches for "matter_list".
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master_list
2019 Jul 23
3
Any plans for ALTREP lists (VECSXP)?
...eems fine for shorter lists with large elements, but I noticed
> that for longer lists with smaller elements, this could be far more
> time-consuming than simply reading the entire list into memory and
> returning a non-ALTREP list:
> >
> > > x
> > <34840 length> matter_list :: out-of-memory list
> > (1.1 MB real | 543.3 MB virtual)
> >
> > > system.time(y <- as.list(x))
> > user system elapsed
> > 1.116 2.175 5.053
> >
> > > system.time(z <- as.altrep(x))
> > user system elapsed
> > 36.29...
2019 Jul 23
3
Any plans for ALTREP lists (VECSXP)?
...tation to build up an ?ALTREP list?.
This seems fine for shorter lists with large elements, but I noticed that for longer lists with smaller elements, this could be far more time-consuming than simply reading the entire list into memory and returning a non-ALTREP list:
> x
<34840 length> matter_list :: out-of-memory list
(1.1 MB real | 543.3 MB virtual)
> system.time(y <- as.list(x))
user system elapsed
1.116 2.175 5.053
> system.time(z <- as.altrep(x))
user system elapsed
36.295 4.717 41.216
> .Internal(inspect(y))
@108255000 19 VECSXP g1c7 [MARK,NAM(7)] (l...
2019 Jul 24
1
[External] Re: Any plans for ALTREP lists (VECSXP)?
...ut I noticed
> >> that for longer lists with smaller elements, this could be far more
> >> time-consuming than simply reading the entire list into memory and
> >> returning a non-ALTREP list:
> >>>
> >>>> x
> >>> <34840 length> matter_list :: out-of-memory list
> >>> (1.1 MB real | 543.3 MB virtual)
> >>>
> >>>> system.time(y <- as.list(x))
> >>> user system elapsed
> >>> 1.116 2.175 5.053
> >>>
> >>>> system.time(z <- as.altrep(...
2019 Jul 23
0
Any plans for ALTREP lists (VECSXP)?
...ALTREP list?.
>
> This seems fine for shorter lists with large elements, but I noticed that for longer lists with smaller elements, this could be far more time-consuming than simply reading the entire list into memory and returning a non-ALTREP list:
>
> > x
> <34840 length> matter_list :: out-of-memory list
> (1.1 MB real | 543.3 MB virtual)
>
> > system.time(y <- as.list(x))
> user system elapsed
> 1.116 2.175 5.053
>
> > system.time(z <- as.altrep(x))
> user system elapsed
> 36.295 4.717 41.216
>
> > .Internal(in...
2019 Jul 24
0
[External] Re: Any plans for ALTREP lists (VECSXP)?
...r lists with large elements, but I noticed
>> that for longer lists with smaller elements, this could be far more
>> time-consuming than simply reading the entire list into memory and
>> returning a non-ALTREP list:
>>>
>>>> x
>>> <34840 length> matter_list :: out-of-memory list
>>> (1.1 MB real | 543.3 MB virtual)
>>>
>>>> system.time(y <- as.list(x))
>>> user system elapsed
>>> 1.116 2.175 5.053
>>>
>>>> system.time(z <- as.altrep(x))
>>> user system el...