diff --git a/Cargo.lock b/Cargo.lock
index 3e25898f0d..b269d0bba5 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -464,6 +464,17 @@ dependencies = [
  "libc 0.2.55 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "core_affinity"
+version = "0.5.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.55 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num_cpus 1.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "crc"
 version = "1.8.1"
@@ -2157,6 +2168,7 @@ dependencies = [
  "bs58 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "byteorder 1.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "chrono 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "core_affinity 0.5.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "crc 1.8.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "hashbrown 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "hex-literal 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -3456,6 +3468,7 @@ dependencies = [
 "checksum cookie_store 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "46750b3f362965f197996c4448e4a0935e791bf7d6631bfce9ee0af3d24c919c"
 "checksum core-foundation 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "286e0b41c3a20da26536c6000a280585d519fd07b3956b43aed8a79e9edce980"
 "checksum core-foundation-sys 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "716c271e8613ace48344f723b60b900a93150271e5be206212d052bbc0883efa"
+"checksum core_affinity 0.5.9 (registry+https://github.com/rust-lang/crates.io-index)" = "6d162c6e463c31dbf78fefa99d042156c1c74d404e299cfe3df2923cb857595b"
 "checksum crc 1.8.1 (registry+https://github.com/rust-lang/crates.io-index)" = "d663548de7f5cca343f1e0a48d14dcfb0e9eb4e079ec58883b7251539fa10aeb"
 "checksum crc32fast 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ba125de2af0df55319f41944744ad91c71113bf74a4646efff39afe1f6842db1"
 "checksum crossbeam-deque 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "f739f8c5363aca78cfb059edf753d8f0d36908c348f3d8d1503f03d8b75d9cf3"
diff --git a/core/Cargo.toml b/core/Cargo.toml
index 1733ee8000..e0eb480ad9 100644
--- a/core/Cargo.toml
+++ b/core/Cargo.toml
@@ -25,6 +25,7 @@ bs58 = "0.2.0"
 byteorder = "1.3.1"
 chrono = { version = "0.4.0", features = ["serde"] }
 crc = { version = "1.8.1", optional = true }
+core_affinity = "0.5.9"
 hashbrown = "0.2.0"
 indexmap = "1.0"
 itertools = "0.8.0"
diff --git a/core/src/poh_service.rs b/core/src/poh_service.rs
index d7c52fcd55..4d353119ac 100644
--- a/core/src/poh_service.rs
+++ b/core/src/poh_service.rs
@@ -2,6 +2,7 @@
 //! "ticks", a measure of time in the PoH stream
 use crate::poh_recorder::PohRecorder;
 use crate::service::Service;
+use core_affinity;
 use solana_sdk::poh_config::PohConfig;
 use std::sync::atomic::{AtomicBool, Ordering};
 use std::sync::{Arc, Mutex};
@@ -33,6 +34,9 @@ impl PohService {
                 if poh_config.hashes_per_tick.is_none() {
                     Self::sleepy_tick_producer(poh_recorder, &poh_config, &poh_exit_);
                 } else {
+                    if let Some(cores) = core_affinity::get_core_ids() {
+                        core_affinity::set_for_current(cores[0]);
+                    }
                     Self::tick_producer(poh_recorder, &poh_exit_);
                 }
                 poh_exit_.store(true, Ordering::Relaxed);