Run-time metric tracking for index instances.
type t = {mutable bytes_read : int;mutable nb_reads : int;mutable bytes_written : int;mutable nb_writes : int;mutable nb_merge : int;mutable merge_durations : float list;mutable nb_replace : int;mutable replace_durations : float list;mutable nb_sync : int;mutable time_sync : float;}The type for stats for an index I.
bytes_read is the number of bytes read from disk;nb_reads is the number of reads from disk;bytes_written is the number of bytes written to disk;nb_writes is the number of writes to disk;nb_merge is the number of times a merge occurred;merge_durations lists how much time the last 10 merge operations took (in microseconds);nb_replace is the number of calls to I.replace;replace_durations lists how much time replace operations took. Each element is an average of n consecutive replaces, where n is the sampling_interval specified when calling end_replace.time_sync is the duration of the latest call to sync.val get : unit -> tmodule Make (_ : Platform.CLOCK) : sig ... end