package octez-shell-libs

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Octez shell libraries

Install 

dune-project
 Dependency

www.tezos.com Readme Edit opam file Versions (5)

Authors

  1. T
    Tezos devteam

Maintainers

  1. C
    contact@tezos.com

Sources

octez-19.0.tar.gz
sha256=c6df840ebbf115e454db949028c595bec558a59a66cade73b52a6d099d6fa4d4
sha512=d8aee903b9fe130d73176bc8ec38b78c9ff65317da3cb4f3415f09af0c625b4384e7498201fdb61aa39086a7d5d409d0ab3423f9bc3ab989a680cf444a79bc13

doc/octez-shell-libs.shell-benchmarks/Tezos_shell_benchmarks/Io_helpers/index.html

Module Tezos_shell_benchmarks.Io_helpersSource

Helpers for loading contexts, saving contexts, writing to contexts, etc. Also contains the Key_map module, heavily used for preparing benchmarks and computing statistics.

Sourceval assert_ok : msg:string -> 'a Tezos_base.TzPervasives.tzresult -> 'a
Sourceval commit : Tezos_protocol_environment.Context.t -> Tezos_base.TzPervasives.Context_hash.t Lwt.t
Sourceval flush : Tezos_protocol_environment.Context.t -> Tezos_protocol_environment.Context.t Lwt.t
Sourceval load_context_from_disk : string -> Tezos_base.TzPervasives.Context_hash.t -> Tezos_protocol_environment.Context.t * Tezos_context.Context.index
Sourceval with_context : base_dir:string -> context_hash:Tezos_base.TzPervasives.Context_hash.t -> (Tezos_protocol_environment.Context.t -> 'a Lwt.t) -> 'a
Sourceval prepare_base_dir : string -> unit
Sourceval initialize_key : Random.State.t -> Tezos_protocol_environment.Context.t -> Tezos_protocol_environment.Context.key -> int -> Tezos_protocol_environment.Context.t Lwt.t

This function updates the context with random bytes at a given depth.

Sourceval commit_and_reload : string -> Tezos_context.Context.index -> Tezos_protocol_environment.Context.t -> (Tezos_protocol_environment.Context.t * Tezos_context.Context.index) Lwt.t
Sourcemodule Key_map : sig ... end

Maps from string lists to bytes. No balancing. A key cannot be a prefix or a suffix to another key.

Sourceval sample_without_replacement : int -> 'a list -> 'a list * 'a list
Sourceval file_copy : string -> string -> unit
Sourceval set_infos : string -> Unix.stats -> unit
Sourceval iter_dir : (string -> unit) -> string -> unit
Sourceval copy_rec : string -> string -> unit
Sourceval split_absolute_path : string -> string list option

Split a absolute path name.

For example, split_absolute_pat "/a/b/c" = Some ["a"; "b"; "c"]. It returns None for illigal paths such as "a/b/c", "/a/../b" and "/a/b/.".

Sourceval purge_disk_cache : unit -> unit

Purge disk cache.

This function assumes Linux OS and purge_disk_cache.exe is placed at the current directory, owned by root with setuid. The source code for purge_disk_cache.exe is available at devtools/benchmarks-tools/purge_disk_cache/.

Even if the function fails to execute the command, it does NOT fail but prints just a warning.

load_head_block data_dir takes the path of the Tezos node data directory (typically $HOME/.tezos-node) and returns the information of the current head.

Sourcemodule Meminfo : sig ... end

Reading /proc/meminfo. Only for Linux

Sourceval with_memory_restriction : float -> ((unit -> unit) -> 'a) -> 'a

with_memory_restriction gib f executes f trying to restrict the MemAvailable of /proc/meminfo to gib GiB. It only works in Linux.

Function f takes a function to re-restrict the MemAvailable during the exection of f.

Sourceval fill_disk_cache : rng:Random.State.t -> restrict_memory:(unit -> unit) -> Tezos_protocol_environment.Context.t -> (Tezos_protocol_environment.Context.key * _) array list -> unit Lwt.t

fill_disk_cache ~rng ~restrict_memory context keys loads keys in context randomly, until Linux kernel's disk cache is completely filled.

restrict_memory is the function obtained by with_memory_restriction. It is used to keep the amount of MemAvailable at the same level.