Skip to content

docs: improve code readability showing perf gains #45

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
knocte wants to merge 1 commit into
base: master
Choose a base branch
from
Open

docs: improve code readability showing perf gains #45

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
36 changes: 20 additions & 16 deletions docs/content/index.fsx
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -38,19 +38,10 @@ For simple pipelines we have observed performance improvements of a factor of fo
Important performance tip: Make sure that FSI is running with 64-bit option set to true and fsproj option prefer 32-bit is unchecked.
*)

open Nessos.Streams

let data = [|1..10000000|] |> Array.map int64

// Sequential

// Real: 00:00:00.044, CPU: 00:00:00.046, GC gen0: 0, gen1: 0, gen2: 0
data
|> Stream.ofArray
|> Stream.filter (fun x -> x % 2L = 0L)
|> Stream.map (fun x -> x + 1L)
|> Stream.sum

// Real: 00:00:00.264, CPU: 00:00:00.265, GC gen0: 0, gen1: 0, gen2: 0
data
|> Seq.filter (fun x -> x % 2L = 0L)
Expand All @@ -63,22 +54,35 @@ data
|> Array.map (fun x -> x + 1L)
|> Array.sum

// Parallel
open FSharp.Collections.ParallelSeq

// Real: 00:00:00.017, CPU: 00:00:00.078, GC gen0: 0, gen1: 0, gen2: 0
type NStream = Nessos.Streams.Stream

// Real: 00:00:00.044, CPU: 00:00:00.046, GC gen0: 0, gen1: 0, gen2: 0
data
|> ParStream.ofArray
|> ParStream.filter (fun x -> x % 2L = 0L)
|> ParStream.map (fun x -> x + 1L)
|> ParStream.sum
|> NStream.ofArray
|> NStream.filter (fun x -> x % 2L = 0L)
|> NStream.map (fun x -> x + 1L)
|> NStream.sum

// Parallel
open FSharp.Collections.ParallelSeq

// Real: 00:00:00.045, CPU: 00:00:00.187, GC gen0: 0, gen1: 0, gen2: 0
data
|> PSeq.filter (fun x -> x % 2L = 0L)
|> PSeq.map (fun x -> x + 1L)
|> PSeq.sum


type PStream = Nessos.Streams.ParStream

// Real: 00:00:00.017, CPU: 00:00:00.078, GC gen0: 0, gen1: 0, gen2: 0
data
|> PStream.ofArray
|> PStream.filter (fun x -> x % 2L = 0L)
|> PStream.map (fun x -> x + 1L)
|> PStream.sum

(**
## References

Expand Down