GLOBAL_REL_IOSTAT

GLOBAL_REL_IOSTAT is the aggregate statistics of openGauss on the cumulative value of the data file IO status, reflecting the IO performance of the data file access.

Table 1 GLOBAL_REL_IOSTAT columns

Name	Type	Description
node_name	name	Node name
phyrds	bigint	Number of times of reading physical files
phywrts	bigint	Number of times of writing into physical files
phyblkrd	bigint	Number of times of reading physical file blocks
phyblkwrt	bigint	Number of times of writing into physical file blocks