blockworks-foundation
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solana
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Remove redundant threadpools in sigverify (#7888) 

* Limit the number of thread pools sigverify creates

* Name local threadpools
This commit is contained in:
Sagar Dhawan 2020-01-20 20:08:19 -08:00 committed by GitHub
parent 1fe11e9ae2
commit 2dd8ab197d
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GPG Key ID: 4AEE18F83AFDEB23
9 changed files with 84 additions and 82 deletions
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1
Cargo.lock generated
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@ -3979,6 +3979,7 @@ dependencies = [
"ed25519-dalek 1.0.0-pre.1 (registry+https://github.com/rust-lang/crates.io-index)",
"fs_extra 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
"itertools 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)",
"lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
"libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
"log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
"matches 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",

1
ledger/Cargo.toml
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@ -46,6 +46,7 @@ sys-info = "0.5.8"
tar = "0.4.26"
thiserror = "1.0"
tempfile = "3.1.0"
lazy_static = "1.4.0"
[dependencies.rocksdb]
# Avoid the vendored bzip2 within rocksdb-sys that can cause linker conflicts

1
ledger/src/blockstore.rs
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@ -58,6 +58,7 @@ pub const BLOCKSTORE_DIRECTORY: &str = "rocksdb";
thread_local!(static PAR_THREAD_POOL: RefCell<ThreadPool> = RefCell::new(rayon::ThreadPoolBuilder::new()
.num_threads(get_thread_count())
.thread_name(|ix| format!("blockstore_{}", ix))
.build()
.unwrap()));

1
ledger/src/blockstore_processor.rs
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@ -39,6 +39,7 @@ use thiserror::Error;
thread_local!(static PAR_THREAD_POOL: RefCell<ThreadPool> = RefCell::new(rayon::ThreadPoolBuilder::new()
.num_threads(get_thread_count())
.thread_name(|ix| format!("blockstore_processor_{}", ix))
.build()
.unwrap())
);

1
ledger/src/entry.rs
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@ -26,6 +26,7 @@ use std::{cmp, thread};
thread_local!(static PAR_THREAD_POOL: RefCell<ThreadPool> = RefCell::new(rayon::ThreadPoolBuilder::new()
.num_threads(get_thread_count())
.thread_name(|ix| format!("entry_{}", ix))
.build()
.unwrap()));

3
ledger/src/lib.rs
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@ -25,3 +25,6 @@ extern crate solana_metrics;
#[macro_use]
extern crate log;
#[macro_use]
extern crate lazy_static;

1
ledger/src/shred.rs
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@ -46,6 +46,7 @@ pub const OFFSET_OF_SHRED_INDEX: usize = OFFSET_OF_SHRED_SLOT + SIZE_OF_SHRED_SL
thread_local!(static PAR_THREAD_POOL: RefCell<ThreadPool> = RefCell::new(rayon::ThreadPoolBuilder::new()
.num_threads(get_thread_count())
.thread_name(|ix| format!("shredder_{}", ix))
.build()
.unwrap()));

132
ledger/src/sigverify_shreds.rs
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@ -20,15 +20,17 @@ use solana_sdk::pubkey::Pubkey;
use solana_sdk::signature::Signature;
use solana_sdk::signature::{Keypair, KeypairUtil};
use std::sync::Arc;
use std::{cell::RefCell, collections::HashMap, mem::size_of};
use std::{collections::HashMap, mem::size_of};
pub const SIGN_SHRED_GPU_MIN: usize = 256;
thread_local!(static PAR_THREAD_POOL: RefCell<ThreadPool> = RefCell::new(rayon::ThreadPoolBuilder::new()
.num_threads(get_thread_count())
.thread_name(|ix| format!("sigverify_shreds_{}", ix))
.build()
.unwrap()));
lazy_static! {
pub static ref SIGVERIFY_THREAD_POOL: ThreadPool = rayon::ThreadPoolBuilder::new()
.num_threads(get_thread_count())
.thread_name(|ix| format!("sigverify_shreds_{}", ix))
.build()
.unwrap();
}
/// Assuming layout is
/// signature: Signature
@ -70,18 +72,16 @@ fn verify_shreds_cpu(batches: &[Packets], slot_leaders: &HashMap<u64, [u8; 32]>)
use rayon::prelude::*;
let count = batch_size(batches);
debug!("CPU SHRED ECDSA for {}", count);
let rv = PAR_THREAD_POOL.with(|thread_pool| {
thread_pool.borrow().install(|| {
batches
.into_par_iter()
.map(|p| {
p.packets
.par_iter()
.map(|p| verify_shred_cpu(p, slot_leaders).unwrap_or(0))
.collect()
})
.collect()
})
let rv = SIGVERIFY_THREAD_POOL.install(|| {
batches
.into_par_iter()
.map(|p| {
p.packets
.par_iter()
.map(|p| verify_shred_cpu(p, slot_leaders).unwrap_or(0))
.collect()
})
.collect()
});
inc_new_counter_debug!("ed25519_shred_verify_cpu", count);
rv
@ -97,30 +97,28 @@ fn slot_key_data_for_gpu<
) -> (PinnedVec<u8>, TxOffset, usize) {
//TODO: mark Pubkey::default shreds as failed after the GPU returns
assert_eq!(slot_keys.get(&std::u64::MAX), Some(&T::default()));
let slots: Vec<Vec<u64>> = PAR_THREAD_POOL.with(|thread_pool| {
thread_pool.borrow().install(|| {
batches
.into_par_iter()
.map(|p| {
p.packets
.iter()
.map(|packet| {
let slot_start = size_of::<Signature>() + size_of::<ShredType>();
let slot_end = slot_start + size_of::<u64>();
if packet.meta.size < slot_end || packet.meta.discard {
return std::u64::MAX;
}
let slot: Option<u64> =
limited_deserialize(&packet.data[slot_start..slot_end]).ok();
match slot {
Some(slot) if slot_keys.get(&slot).is_some() => slot,
_ => std::u64::MAX,
}
})
.collect()
})
.collect()
})
let slots: Vec<Vec<u64>> = SIGVERIFY_THREAD_POOL.install(|| {
batches
.into_par_iter()
.map(|p| {
p.packets
.iter()
.map(|packet| {
let slot_start = size_of::<Signature>() + size_of::<ShredType>();
let slot_end = slot_start + size_of::<u64>();
if packet.meta.size < slot_end || packet.meta.discard {
return std::u64::MAX;
}
let slot: Option<u64> =
limited_deserialize(&packet.data[slot_start..slot_end]).ok();
match slot {
Some(slot) if slot_keys.get(&slot).is_some() => slot,
_ => std::u64::MAX,
}
})
.collect()
})
.collect()
});
let mut keys_to_slots: HashMap<T, Vec<u64>> = HashMap::new();
for batch in slots.iter() {
@ -312,14 +310,12 @@ pub fn sign_shreds_cpu(keypair: &Keypair, batches: &mut [Packets]) {
use rayon::prelude::*;
let count = batch_size(batches);
debug!("CPU SHRED ECDSA for {}", count);
PAR_THREAD_POOL.with(|thread_pool| {
thread_pool.borrow().install(|| {
batches.par_iter_mut().for_each(|p| {
p.packets[..]
.par_iter_mut()
.for_each(|mut p| sign_shred_cpu(keypair, &mut p));
});
})
SIGVERIFY_THREAD_POOL.install(|| {
batches.par_iter_mut().for_each(|p| {
p.packets[..]
.par_iter_mut()
.for_each(|mut p| sign_shred_cpu(keypair, &mut p));
});
});
inc_new_counter_debug!("ed25519_shred_verify_cpu", count);
}
@ -425,25 +421,23 @@ pub fn sign_shreds_gpu(
}
sizes[i] += sizes[i - 1];
}
PAR_THREAD_POOL.with(|thread_pool| {
thread_pool.borrow().install(|| {
batches
.par_iter_mut()
.enumerate()
.for_each(|(batch_ix, batch)| {
let num_packets = sizes[batch_ix];
batch.packets[..]
.par_iter_mut()
.enumerate()
.for_each(|(packet_ix, packet)| {
let sig_ix = packet_ix + num_packets;
let sig_start = sig_ix * sig_size;
let sig_end = sig_start + sig_size;
packet.data[0..sig_size]
.copy_from_slice(&signatures_out[sig_start..sig_end]);
});
});
});
SIGVERIFY_THREAD_POOL.install(|| {
batches
.par_iter_mut()
.enumerate()
.for_each(|(batch_ix, batch)| {
let num_packets = sizes[batch_ix];
batch.packets[..]
.par_iter_mut()
.enumerate()
.for_each(|(packet_ix, packet)| {
let sig_ix = packet_ix + num_packets;
let sig_start = sig_ix * sig_size;
let sig_end = sig_start + sig_size;
packet.data[0..sig_size]
.copy_from_slice(&signatures_out[sig_start..sig_end]);
});
});
});
inc_new_counter_debug!("ed25519_shred_sign_gpu", count);
}

25
perf/src/sigverify.rs
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@ -18,14 +18,15 @@ use solana_sdk::short_vec::decode_len;
use solana_sdk::signature::Signature;
#[cfg(test)]
use solana_sdk::transaction::Transaction;
use std::cell::RefCell;
use std::mem::size_of;
thread_local!(static PAR_THREAD_POOL: RefCell<ThreadPool> = RefCell::new(rayon::ThreadPoolBuilder::new()
.num_threads(get_thread_count())
.thread_name(|ix| format!("sigverify_{}", ix))
.build()
.unwrap()));
lazy_static! {
static ref PAR_THREAD_POOL: ThreadPool = rayon::ThreadPoolBuilder::new()
.num_threads(get_thread_count())
.thread_name(|ix| format!("sigverify_{}", ix))
.build()
.unwrap();
}
pub type TxOffset = PinnedVec<u32>;
@ -247,13 +248,11 @@ pub fn ed25519_verify_cpu(batches: &[Packets]) -> Vec<Vec<u8>> {
use rayon::prelude::*;
let count = batch_size(batches);
debug!("CPU ECDSA for {}", batch_size(batches));
let rv = PAR_THREAD_POOL.with(|thread_pool| {
thread_pool.borrow().install(|| {
batches
.into_par_iter()
.map(|p| p.packets.par_iter().map(verify_packet).collect())
.collect()
})
let rv = PAR_THREAD_POOL.install(|| {
batches
.into_par_iter()
.map(|p| p.packets.par_iter().map(verify_packet).collect())
.collect()
});
inc_new_counter_debug!("ed25519_verify_cpu", count);
rv