pezkuwichain/pezkuwi-subxt
1
0
Fork 0
mirror of https://github.com/pezkuwichain/pezkuwi-subxt.git synced 2026-04-27 18:37:59 +00:00
Code Issues Packages Projects Releases Wiki Activity

use pdqselect for median_algorithm selection (#3636)

Browse Source 
* use pdqselect for median_algorithm selection instead of sorting the whole vec

* Make use of pqdselect clearer

Co-Authored-By: André Silva <andre.beat@gmail.com>

* Make use of pqdselect clearer

Co-Authored-By: André Silva <andre.beat@gmail.com>
This commit is contained in:
Ashley
2019-09-24 08:37:53 +12:00
committed by Robert Habermeier
parent 2d6e617309
commit 1baee72d75
3 changed files with 10 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files
substrate/Cargo.lock
Generated
+7
View File
@@ -2939,6 +2939,11 @@ dependencies = [
"crypto-mac 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "pdqselect"
version = "0.1.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "peeking_take_while"
version = "0.1.2"
@@ -4780,6 +4785,7 @@ dependencies = [
"num-traits 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
"parity-scale-codec 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
"parking_lot 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
"pdqselect 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
"rand 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)",
"schnorrkel 0.8.5 (registry+https://github.com/rust-lang/crates.io-index)",
"sr-io 2.0.0",
@@ -6779,6 +6785,7 @@ dependencies = [
"checksum paste 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "1f4a4a1c555c6505821f9d58b8779d0f630a6b7e4e1be24ba718610acf01fa79"
"checksum paste-impl 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "26e796e623b8b257215f27e6c80a5478856cae305f5b59810ff9acdaa34570e6"
"checksum pbkdf2 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "006c038a43a45995a9670da19e67600114740e8511d4333bf97a56e66a7542d9"
"checksum pdqselect 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "4ec91767ecc0a0bbe558ce8c9da33c068066c57ecc8bb8477ef8c1ad3ef77c27"
"checksum peeking_take_while 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "19b17cddbe7ec3f8bc800887bab5e717348c95ea2ca0b1bf0837fb964dc67099"
"checksum percent-encoding 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "31010dd2e1ac33d5b46a5b413495239882813e0369f8ed8a5e266f173602f831"
"checksum percent-encoding 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "d4fd5641d01c8f18a23da7b6fe29298ff4b55afcccdf78973b24cf3175fee32e"
substrate/core/consensus/babe/Cargo.toml
+1
View File
@@ -34,6 +34,7 @@ log = "0.4.6"
schnorrkel = { version = "0.8.4", features = ["preaudit_deprecated"] }
rand = "0.6.5"
merlin = "1.0.3"
pdqselect = "0.1.0"
[dev-dependencies]
keyring = { package = "substrate-keyring", path = "../../keyring" }
substrate/core/consensus/babe/src/lib.rs
+2 -2
View File
@@ -780,8 +780,8 @@ fn median_algorithm(
t + Duration::new(secs, nanos)
}).collect();
// FIXME #2926: use a selection algorithm instead of a full sorting algorithm.
new_list.sort_unstable();
// Use a partial sort to move the median timestamp to the middle of the list
pdqselect::select(&mut new_list, num_timestamps / 2);
let &median = new_list
.get(num_timestamps / 2)