Struct rocks::compaction_job_stats::CompactionJobStats

#[repr(C)]pub struct CompactionJobStats { /* fields omitted */ }

Implementations

impl CompactionJobStats

pub fn elapsed_micros(&self) -> u64

the elapsed time in micro of this compaction.

pub fn num_input_records(&self) -> u64

the number of compaction input records.

pub fn num_input_files(&self) -> usize

the number of compaction input files.

pub fn num_input_files_at_output_level(&self) -> usize

the number of compaction input files at the output level.

pub fn num_output_records(&self) -> u64

the number of compaction output records.

pub fn num_output_files(&self) -> usize

the number of compaction output files.

pub fn is_manual_compaction(&self) -> bool

true if the compaction is a manual compaction

pub fn total_input_bytes(&self) -> u64

the size of the compaction input in bytes.

pub fn total_output_bytes(&self) -> u64

the size of the compaction output in bytes.

pub fn num_records_replaced(&self) -> u64

number of records being replaced by newer record associated with same key. this could be a new value or a deletion entry for that key so this field sums up all updated and deleted keys

pub fn total_input_raw_key_bytes(&self) -> u64

the sum of the uncompressed input keys in bytes.

pub fn total_input_raw_value_bytes(&self) -> u64

the sum of the uncompressed input values in bytes.

pub fn num_input_deletion_records(&self) -> u64

the number of deletion entries before compaction. Deletion entries can disappear after compaction because they expired

pub fn num_expired_deletion_records(&self) -> u64

number of deletion records that were found obsolete and discarded because it is not possible to delete any more keys with this entry (i.e. all possible deletions resulting from it have been completed)

pub fn num_corrupt_keys(&self) -> u64

number of corrupt keys (ParseInternalKey returned false when applied to the key) encountered and written out.

pub fn file_write_nanos(&self) -> u64

Following counters are only populated if options.report_bg_io_stats = true; Time spent on file's Append() call.

pub fn file_range_sync_nanos(&self) -> u64

Time spent on sync file range.

pub fn file_fsync_nanos(&self) -> u64

Time spent on file fsync.

pub fn file_prepare_write_nanos(&self) -> u64

Time spent on preparing file write (falocate, etc)

pub fn smallest_output_key_prefix(&self) -> &[u8]

0-terminated strings storing the first 8 bytes of the smallest and largest key in the output.

pub fn largest_output_key_prefix(&self) -> &[u8]

pub fn num_single_del_fallthru(&self) -> u64

number of single-deletes which do not meet a put

pub fn num_single_del_mismatch(&self) -> u64

number of single-deletes which meet something other than a put

Trait Implementations

impl Debug for CompactionJobStats

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.