## IOTHREADSTATISTICS

### Definition

The system table IOTHREADSTATISTICS contains information about all I/O operations per volume since the last start of the database instance.

### Structure

IOTHREADSTATISTICS

VOLUMEID | FIXED(10) | Volume ID in the runtime environment
READCOUNT | FIXED(20) | Number of reads
READPAGECOUNT | FIXED(20) | Number of pages read during the read process
READTIME | FIXED(20) | Total time of the read operation with active time measurement (µs)
READTIMEMEASUREMENTCOUNT | FIXED(20) | Number of measured reads
WRITECOUNT | FIXED(20) | Number of write operations
WRITEPAGECOUNT | FIXED(20) | Number of pages written during the read process
WRITETIME | FIXED(20) | Total time of the write operation with active time measurement (µs)
WRITETIMEMEASUREMENTCOUNT | FIXED(20) | Number of measured write operations
PENDINGIOCOUNT | FIXED(5) | Number of pending I/O calls
MAXPENDINGIOCOUNT | FIXED(5) | Maximum number of pending I/O calls
PATH | CHAR (256) | Name of the disk space area on which the I/O calls are executed

See also:

IOTHREADSTATISTICSRESET