org.gridgain.grid.cache.compress

Interface CompressionMetrics

public interface CompressionMetrics

Compression implementation metrics.

Method Summary

Modifier and Type	Method and Description
double	acceptance() Gets current acceptance, a fraction of records which were actually compressed.
long	bytesCompressed() Gets total number of bytes of all uncompressed data taken as input for compression, regardless of whether it was accepted for compression and of compression ratio.
long	bytesDecompressed() Gets total number of bytes of all compressed data taken as input for decompression.
double	ratio() Gets current ratio of compressed data size to uncompressed size, for all data which was accepted.
long	recordsCompressed() Gets total number of records taken as input for compression, regardless of whether it was accepted for compression and of compression ratio.
long	recordsDecompressed() Gets total number of records taken as input for decompression.

Method Detail

acceptance

double acceptance()

Gets current acceptance, a fraction of records which were actually compressed. Data is not picked for compression if it is not eligible for some reason, or if compression does not yield sufficient space benefit.

Returns:

Acceptance, in [0, 1] range.

ratio

double ratio()

Gets current ratio of compressed data size to uncompressed size, for all data which was accepted.

Returns:

Ratio, in (0, 1) range.

See Also:

acceptance()

bytesCompressed

long bytesCompressed()

Gets total number of bytes of all uncompressed data taken as input for compression, regardless of whether it was accepted for compression and of compression ratio.

Returns:

Throughput, in bytes.

recordsCompressed

long recordsCompressed()

Gets total number of records taken as input for compression, regardless of whether it was accepted for compression and of compression ratio.

Returns:

Throughput, in number of records.

bytesDecompressed

long bytesDecompressed()

Gets total number of bytes of all compressed data taken as input for decompression.

Returns:

Throughput, in bytes.

recordsDecompressed

long recordsDecompressed()

Gets total number of records taken as input for decompression.

Returns:

Throughput, in number of records.