The _ActBILog VST displays before-image log activity, such as the number of before-image reads and writes.

Field name Data type Description
_BiLog-BOBufHit INT64 Number of input buffer hits.
_BiLog-BBuffWaits INT64 Number of times a process waited for a buffer that was busy.
_BiLog-BIWWrites INT64 Number of writes to the BI file performed by the before-image writer (BIW). For good performance, this number should be high in relation to the total number of BI writes.
_BiLog-BytesRead INT64 Number of bytes of data read from the BI file.
_BiLog-BytesWrtn INT64 Number of bytes of data written to the BI file.
_BiLog-ClstrClose INT64 Number of BI clusters filled and closed in preparation for reuse.
_BiLog-EBuffWaits INT64 Number of times a process waited because all buffers were full.
_BiLog-ForceWaits INT64 Number of waiting-for-commit records to be written to disk.
_BiLog-ForceWrts INT64 Number of waiting-for-commit records written to disk.
_BILog-IdleClstrReuse INT64 Number of open but idle BI clusters recycled by the watchdog process.
_BiLog-InputBufHit INT64 Number of input buffer hits.
_BiLog-ModBufHit INT64 Number of modified buffer hits.
_BiLog-OutputBufHit INT64 Number of output buffer hits.
_BiLog-PartialWrts INT64 Number of writes to the BI file made before the BI buffer is full.
_BiLog-RecRead INT64 Number of BI records (notes) read from the BI file.
_BiLog-RecWriten INT64 Number of BI records (notes) written to the BI file.
_BiLog-TotalWrts INT64 Number of total writes to the BI file.
_BiLog-TotReads INT64 Number of BI blocks read from the BI file to undo transactions.
_BiLog-Trans INT64 Number of transactions committed to the BI file.
_BiLog-UpTime INTEGER Number of seconds that the BI file was open.