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9191b
2007 Jun 26
1
Memory Experimentation: Rule of Thumb = 10-15 Times the Memory
...used (Mb)
Ncells 270505 14.5 8349948 446.0 11268682 601.9
Vcells 10639515 81.2 34345544 262.1 42834692 326.9
I was a big surprised by this---R had 928MB intermittent memory in
use. More interestingly, this is also similar to what linux 'top'
reports as memory use of the R process (919MB, probably 1024 vs. 1000
B/MB), even after the read.csv() is finished and gc() has been run.
Nothing seems to have been released back to the OS.
Now,
> rm(s)
> gc()
used (Mb) gc trigger (Mb) max used (Mb)
Ncells 270541 14.5 6679958 356.8 11268755 601.9
Vcells 139481 1.1 2747...
2007 Aug 09
1
Memory Experimentation: Rule of Thumb = 10-15 Times the Memory
...05 14.5 8349948 446.0 11268682 601.9
> Vcells 10639515 81.2 34345544 262.1 42834692 326.9
>
> I was a big surprised by this---R had 928MB intermittent memory in
> use. More interestingly, this is also similar to what linux 'top'
> reports as memory use of the R process (919MB, probably 1024 vs. 1000
> B/MB), even after the read.csv() is finished and gc() has been run.
> Nothing seems to have been released back to the OS.
>
> Now,
>
>> rm(s)
>> gc()
> used (Mb) gc trigger (Mb) max used (Mb)
> Ncells 270541 14.5 6679958 356.8...