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Diffstat (limited to 'src/libnetdata/storage_number/README.md')
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diff --git a/src/libnetdata/storage_number/README.md b/src/libnetdata/storage_number/README.md new file mode 100644 index 000000000..f0096fb9b --- /dev/null +++ b/src/libnetdata/storage_number/README.md @@ -0,0 +1,21 @@ +<!-- +title: "Netdata storage number" +custom_edit_url: https://github.com/netdata/netdata/edit/master/src/libnetdata/storage_number/README.md +sidebar_label: "Storage number" +learn_status: "Published" +learn_topic_type: "Tasks" +learn_rel_path: "Developers/libnetdata" +--> + +# Netdata storage number + +Although `netdata` does all its calculations using `long double`, it stores all values using +a **custom-made 32-bit number**. + +This custom-made number can store in 29 bits values from `-167772150000000.0` to `167772150000000.0` +with a precision of 0.00001 (yes, it's a floating point number, meaning that higher integer values +have less decimal precision) and 3 bits for flags. + +This provides an extremely optimized memory footprint with just 0.0001% max accuracy loss. + + |