8.17. I/O Usage Metrics #
Metrics based on the pg_stat_io
view:
postgresql_io_writes_total
postgresql_io_writebacks_total
postgresql_io_extends_total
postgresql_io_hits_total
postgresql_io_evictions_total
postgresql_io_reuses_total
postgresql_io_fsyncs_total
postgresql_io_read_bytes_total
postgresql_io_write_bytes_total
postgresql_io_writeback_bytes_total
postgresql_io_extend_bytes_total
postgresql_io_read_time_milliseconds_total
postgresql_io_write_time_milliseconds_total
postgresql_io_writeback_time_milliseconds_total
postgresql_io_extend_time_milliseconds_total
postgresql_io_fsync_time_milliseconds_total