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Fix Phragmen benchmark (#11137)

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* Fix phragmen benchmark

Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>

* cargo run --quiet --profile=production  --features=runtime-benchmarks --manifest-path=bin/node/cli/Cargo.toml -- benchmark --chain=dev --steps=50 --repeat=20 --pallet=pallet_elections_phragmen --extrinsic=* --execution=wasm --wasm-execution=compiled --heap-pages=4096 --output=./frame/elections-phragmen/src/weights.rs --template=./.maintain/frame-weight-template.hbs

Co-authored-by: Parity Bot <admin@parity.io>
This commit is contained in:
Oliver Tale-Yazdi
2022-03-30 20:16:19 +02:00
committed by GitHub
parent 87f02c87d0
commit 7bf19fa9c9
2 changed files with 71 additions and 70 deletions
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substrate/frame/elections-phragmen/src/benchmarking.rs
+16 -13
View File
@@ -39,7 +39,9 @@ type Lookup<T> = <<T as frame_system::Config>::Lookup as StaticLookup>::Source;
/// grab new account with infinite balance.
fn endowed_account<T: Config>(name: &'static str, index: u32) -> T::AccountId {
let account: T::AccountId = account(name, index, 0);
let amount = default_stake::<T>(BALANCE_FACTOR);
// Fund each account with at-least his stake but still a sane amount as to not mess up
// the vote calculation.
let amount = default_stake::<T>(MAX_VOTERS) * BalanceOf::<T>::from(BALANCE_FACTOR);
let _ = T::Currency::make_free_balance_be(&account, amount);
// important to increase the total issuance since T::CurrencyToVote will need it to be sane for
// phragmen to work.
@@ -54,9 +56,9 @@ fn as_lookup<T: Config>(account: T::AccountId) -> Lookup<T> {
}
/// Get a reasonable amount of stake based on the execution trait's configuration
fn default_stake<T: Config>(factor: u32) -> BalanceOf<T> {
let factor = BalanceOf::<T>::from(factor);
T::Currency::minimum_balance() * factor
fn default_stake<T: Config>(num_votes: u32) -> BalanceOf<T> {
let min = T::Currency::minimum_balance();
Elections::<T>::deposit_of(num_votes as usize).max(min)
}
/// Get the current number of candidates.
@@ -88,7 +90,7 @@ fn submit_candidates_with_self_vote<T: Config>(
prefix: &'static str,
) -> Result<Vec<T::AccountId>, &'static str> {
let candidates = submit_candidates::<T>(c, prefix)?;
let stake = default_stake::<T>(BALANCE_FACTOR);
let stake = default_stake::<T>(c);
let _ = candidates
.iter()
.map(|c| submit_voter::<T>(c.clone(), vec![c.clone()], stake).map(|_| ()))
@@ -112,7 +114,7 @@ fn distribute_voters<T: Config>(
num_voters: u32,
votes: usize,
) -> Result<(), &'static str> {
let stake = default_stake::<T>(BALANCE_FACTOR);
let stake = default_stake::<T>(num_voters);
for i in 0..num_voters {
// to ensure that votes are different
all_candidates.rotate_left(1);
@@ -160,7 +162,7 @@ benchmarks! {
let all_candidates = submit_candidates::<T>(v, "candidates")?;
let caller = endowed_account::<T>("caller", 0);
let stake = default_stake::<T>(BALANCE_FACTOR);
let stake = default_stake::<T>(v);
// original votes.
let mut votes = all_candidates;
@@ -173,14 +175,15 @@ benchmarks! {
}: vote(RawOrigin::Signed(caller), votes, stake)
vote_more {
let v in 2 .. (MAXIMUM_VOTE as u32);
let v in 2 .. (MAXIMUM_VOTE as u32);
clean::<T>();
// create a bunch of candidates.
let all_candidates = submit_candidates::<T>(v, "candidates")?;
let caller = endowed_account::<T>("caller", 0);
let stake = default_stake::<T>(BALANCE_FACTOR);
// Multiply the stake with 10 since we want to be able to divide it by 10 again.
let stake = default_stake::<T>(v) * BalanceOf::<T>::from(10u32);
// original votes.
let mut votes = all_candidates.iter().skip(1).cloned().collect::<Vec<_>>();
@@ -194,14 +197,14 @@ benchmarks! {
}: vote(RawOrigin::Signed(caller), votes, stake / <BalanceOf<T>>::from(10u32))
vote_less {
let v in 2 .. (MAXIMUM_VOTE as u32);
let v in 2 .. (MAXIMUM_VOTE as u32);
clean::<T>();
// create a bunch of candidates.
let all_candidates = submit_candidates::<T>(v, "candidates")?;
let caller = endowed_account::<T>("caller", 0);
let stake = default_stake::<T>(BALANCE_FACTOR);
let stake = default_stake::<T>(v);
// original votes.
let mut votes = all_candidates;
@@ -224,7 +227,7 @@ benchmarks! {
let caller = endowed_account::<T>("caller", 0);
let stake = default_stake::<T>(BALANCE_FACTOR);
let stake = default_stake::<T>(v);
submit_voter::<T>(caller.clone(), all_candidates, stake)?;
whitelist!(caller);
@@ -238,7 +241,7 @@ benchmarks! {
let m = T::DesiredMembers::get() + T::DesiredRunnersUp::get();
clean::<T>();
let stake = default_stake::<T>(BALANCE_FACTOR);
let stake = default_stake::<T>(c);
// create m members and runners combined.
let _ = fill_seats_up_to::<T>(m)?;