From 28ba48959cb7ad384d958cf606d29a54f0bcdfd9 Mon Sep 17 00:00:00 2001 From: Nicolas Goaziou Date: Sun, 20 Dec 2020 13:09:17 +0100 Subject: gnu: Add rust-cache-padded-1. * gnu/packages/crates-io.scm (rust-cache-padded-1): New variable. --- gnu/packages/crates-io.scm | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) (limited to 'gnu/packages/crates-io.scm') diff --git a/gnu/packages/crates-io.scm b/gnu/packages/crates-io.scm index dedfcfe55d..d238dbf8e0 100644 --- a/gnu/packages/crates-io.scm +++ b/gnu/packages/crates-io.scm @@ -3716,6 +3716,29 @@ (define-public rust-c2-chacha-0.2 "The ChaCha family of stream ciphers.") (license (list license:asl2.0 license:expat)))) +(define-public rust-cache-padded-1 + (package + (name "rust-cache-padded") + (version "1.1.1") + (source + (origin + (method url-fetch) + (uri (crate-uri "cache-padded" version)) + (file-name (string-append name "-" version ".tar.gz")) + (sha256 + (base32 "1fkdwv9vjazm6fs3s5v56mm4carwswdmw8fcwm9ygrcvihcya6k3")))) + (build-system cargo-build-system) + (home-page "https://github.com/stjepang/cache-padded") + (synopsis "Prevent once piece of data invalidating other cached data") + (description + "In concurrent programming, sometimes it is desirable to make sure +commonly accessed shared data is not all placed into the same cache line. +Updating an atomic value invalides the whole cache line it belongs to, which +makes the next access to the same cache line slower for other CPU cores. Use +CachePadded to ensure updating one piece of data doesn't invalidate other +cached data.") + (license (list license:asl2.0 license:expat)))) + (define-public rust-cachedir-0.1 (package (name "rust-cachedir") -- cgit v1.2.3