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PV_FILE_STAT

Updated at: Jul 15, 2020 GMT+08:00

By collecting statistics about the data file I/Os, PV_FILE_STAT displays the I/O performance of the data to detect the performance problems, such as abnormal I/O operations.

Table 1 PV_FILE_STAT columns

Name

Type

Description

filenum

oid

File ID

dbid

oid

ID of a database

spcid

oid

ID of a tablespace

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

readtim

bigint

Total duration of reading files, in microseconds

writetim

bigint

Total duration of writing files, in microseconds

avgiotim

bigint

Average duration of reading and writing files, in microseconds

lstiotim

bigint

Duration of the last file reading, in microseconds

miniotim

bigint

Minimum duration of reading and writing files, in microseconds

maxiowtm

bigint

Maximum duration of reading and writing files, in microseconds

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