Where do I find the size of the datasets loaded to memory

[Allan_dk]

Where do I find the size of the datasets loaded to memory?

I now have more than 50 tables loaded in the LASR-server.

The Sizing Guideline for Single Machine have a guideline about

• largest individual table size (16 GB)
• total GB loaded to memory. (180 GB)

I can only find information about number of rows and columns.

[RW9]

Hi,

In base SAS in SASHELP.VTABLE, find your table (where libname=library and dataset=memname), and it will show you FILESIZE variable, I assume its in bytes.

[stat_sas]

Hi,

You can use proc datasets to get info for all your loaded tables.

proc datasets library=sashelp;

run;

quit;

[Allan_dk]

Just to specify.

It is the datasets loaded to memory in the LASR-server.

There are no physical files, therefore sashelp.vtable.filesize=0

proc datasets don't give me much information.

[stat_sas]

Not sure about LASR-server, try to explore SASFILE statement if that works in this situation.

[JasonAllen]

Hello Allan_dk,

Because of the way data is loaded into a LASR server, it's difficult to say.  For example, if source SAS data is loaded into HDFS, then into a LASR server, a LASR table only consumes memory while it is being used.  If not, it consumes memory as long as it is loaded.  Also for example, levelization increases memory consumption.

However, you can get a rough estimate of the size of (uncompressed) data using the SASIOLA libname engine and PROC DATASETS CONTENTS by multiplying the number of observations ("Observations") by the observation length ("Observation Length").