replecement of rrdtool

hi,
any one know about the any utility which have same functionality as "rrdtool" but use less cpu, memory and not create much files as "rrdtools".

Thanks in advance.

RRDtool - Wikipedia, the free encyclopedia
Check the "other tools"

/*RRDtool - Wikipedia, the free encyclopedia
Check the "other tools" */

are depended on the rrdtool, i want a library or a tool which read data from memory not file cause i don't want to create file and draw the chart form that stats. rrdtool save the data in to the file and then read form the file and make chart.

After a few more clicks (you had a month)

RRDp
Attach RRDtool from within a perl script via a set of pipes;
RRDs
Access RRDtool as a shared module

Neither of these would seem to use files.

Try them out.

see i don't want to create rrd database file, i want all data in RAM, i have all ready design that structure but i i cannot able to draw diff type of chart if possible we can use the rrdtool for creating chart but it could be not read from the rrd data base file. or other tool which can able to draw chart from stats which store in RAM and from this stat it create chart of my choice. and give same feature as rrdtool have. i don't want to deal with any file read or write. i want generate only gif file of chart.