search for: object_size

I ran into some very irritating behaviour I don't understand. Let me illustrate with the package gdata() and the function print.object_size() : > print(object.size(iris),units='Kb') 6.3 Kb > getAnywhere(print.object_size) A single object matching ?print.object_size? was found It was found in the following places registered S3 method for print from namespace utils namespace:utils with value ... All is well. So now I...

...has already been discussed or not, and I'm a bit worried I'm throwing off an endless debate. If it's already settled, no need to discuss it further. TOPIC #1: Shouldn't R use KB, MB and GB when reporting on sizes kilobytes, megabytes and gigabytes? More specifically, format() for object_size objects (returned by object.size()) uses Kb, Mb and Gb, which AFAIK is more often used to indicate sizes in kilobits, megabits and gigabits, e.g. > format(structure(2e3, class="object_size"), units="auto") [1] "2 Kb" > format(structure(2e6, class="object_si...

Hi, Currently object.size() is not very useful on environments as it always returns 56 bytes, no matter how big the environment is: env1 <- new.env() object.size(env1) # 56 bytes env2 <- new.env(hash=TRUE, size=75000000L) object.size(env2) # 56 bytes env3 <- list2env(list(a=runif(25000000), L=LETTERS)) object.size(env3) # 56 bytes This makes it pretty useless on

I think there is a discrepancy In the help for object.size(). In the usage section there is the comment: ## S3 method for class 'object_size': while in the value section there is the text: An object of class ?"object.size"? ... And R itself says: > class(object.size(letters)) [1] "object_size" Also, I was trying to print out object sizes in Kb, but rounded to whole number of units, but I could not figure...

...,232 B > lobstr::obj_sizes(A, new("A", stuff=raw(0))) > #> * 719,232 B > #> * ? ? 720 B > lobstr::obj_sizes(A, new("A", stuff=runif(1e8))) > #> * ? ? 719,232 B > #> * 800,000,720 B Nice. Can you clarify the situation with lobstr::obj_size vs pryr::object_size? I've heard of the latter before and use it sometimes but never heard of the former before seeing Stefan's post. Then I checked the authors of both and thought maybe they should talk to each other ;-) Thanks, H. > > Hadley > -- > http://hadley.nz > <https://urldefe...

We have a project that calls for the creation of a list of many distribution objects. Distributions can be of various types, with various parameters, but we ran into some problems. I started testing on a simple list of rnorm-based objects. I was a little surprised at the RAM storage requirements, here's an example: N <- 10000 closureList <- vector("list", N) nsize = sample(x

...> #> * 719,232 B > > #> * ? ? 720 B > > lobstr::obj_sizes(A, new("A", stuff=runif(1e8))) > > #> * ? ? 719,232 B > > #> * 800,000,720 B > > Nice. Can you clarify the situation with lobstr::obj_size vs > pryr::object_size? I've heard of the latter before and use it sometimes > but never heard of the former before seeing Stefan's post. Then I > checked the authors of both and thought maybe they should talk to each > other ;-) > > > pryr is basically retired :) TBH I don't k...

...ent */ int reserved; /* Reserved bytes at the end of slabs */ diff --git a/mm/slab_common.c b/mm/slab_common.c index 3f3cd97..8c19bfd 100644 --- a/mm/slab_common.c +++ b/mm/slab_common.c @@ -193,6 +193,7 @@ kmem_cache_create_memcg(struct mem_cgroup *memcg, const char *name, size_t size, s->object_size = s->size = size; s->align = calculate_alignment(flags, align, size); s->ctor = ctor; + s->decoder = NULL; if (memcg_register_cache(memcg, s, parent_cache)) { kmem_cache_free(kmem_cache, s); @@ -248,7 +249,7 @@ kmem_cache_create(const char *name, size_t size, size_t alig...

...quot;A", stuff=raw(0))) > > #> * 719,232 B > > #> * 720 B > > lobstr::obj_sizes(A, new("A", stuff=runif(1e8))) > > #> * 719,232 B > > #> * 800,000,720 B > > Nice. Can you clarify the situation with lobstr::obj_size vs > pryr::object_size? I've heard of the latter before and use it sometimes > but never heard of the former before seeing Stefan's post. Then I > checked the authors of both and thought maybe they should talk to each > other ;-) > pryr is basically retired :) TBH I don't know why I gave up on it...

...ent */ int reserved; /* Reserved bytes at the end of slabs */ diff --git a/mm/slab_common.c b/mm/slab_common.c index 3f3cd97..39a0fb2 100644 --- a/mm/slab_common.c +++ b/mm/slab_common.c @@ -193,6 +193,7 @@ kmem_cache_create_memcg(struct mem_cgroup *memcg, const char *name, size_t size, s->object_size = s->size = size; s->align = calculate_alignment(flags, align, size); s->ctor = ctor; + s->decoder = NULL; if (memcg_register_cache(memcg, s, parent_cache)) { kmem_cache_free(kmem_cache, s); diff --git a/mm/slub.c b/mm/slub.c index ba2ca53..0496a2b 100644 --- a/mm/slub.c...

Hi Tomas, On 3/27/20 07:01, Tomas Kalibera wrote: > they provide an over-approximation They can also provide an "under-approximation" (to say the least) e.g. on reference objects where the entire substance of the object is ignored which makes object.size() completely meaningless in that case: setRefClass("A", fields=c(stuff="ANY"))

Starting with 3.7 rc1, my workstation seems to loose ram. Up until (and including) 3.6, used-(buffers+cached) was roughly the same as sum(rss) (taking shared into account). Now there is an approx 6G gap. When the box first starts, it is clearly less swappy than with <= 3.6; I can''t tell whether that is related. The reduced swappiness persists. It seems to get worse when I update

I have a toy alt-rep string package that generates randomly seeded strings. example: library(altstringisode) x <- altrandomStrings(1e8) head(x) [1] "2PN0bdwPY7CA8M06zVKEkhHgZVgtV1" "5PN2qmWqBlQ9wQj99nsQzldVI5ZuGX" ... etc object.size(1e8) Object.size will call the set_altstring_Elt_method for every single element, materializing (slowly) every element of the vector. This

...format.POSIXLt. o body<-() now treats list values consistently with other types: they no longer need to be wrapped in a list() call. o option("pdfbrowser") is now set on Windows as well as on Unix-alikes. o object.size() now returns an object of class "object_size" and has a print() method. o [col/row]Sums(), *Means() now have an additional '...' argument, so that they can more easily be turned into generic functions. o Package 'tools' contains dependsOnPkgs() to compute reverse dependencies. o...

...format.POSIXLt. o body<-() now treats list values consistently with other types: they no longer need to be wrapped in a list() call. o option("pdfbrowser") is now set on Windows as well as on Unix-alikes. o object.size() now returns an object of class "object_size" and has a print() method. o [col/row]Sums(), *Means() now have an additional '...' argument, so that they can more easily be turned into generic functions. o Package 'tools' contains dependsOnPkgs() to compute reverse dependencies. o...