This view shows reads and writes to database devices by Adaptive Server, since the start of the session. It shows the:
Overall rate of reads and writes to database devices since the start of the session
Most active database device for that time period
Rate of reads and writes to the most active device
SMC_SIZET device_perf_sum_count = 3;
SMC_DATAITEM_STRUCT device_perf_sum_view[] = {
{ SMC_NAME_DEV_IO, SMC_STAT_RATE_SESSION },
{ SMC_NAME_MOST_ACT_DEV_NAME, SMC_STAT_VALUE_SESSION },
{ SMC_NAME_MOST_ACT_DEV_IO, SMC_STAT_RATE_SESSION }
};