feat: Node: fast mode support

feat: enable fast mode in simple mode if available memory > 4GB
feat: Node tab advanced sublenu add checkbox to enable fast mode

src/app/panels/middle/node.rs

@@ -20,7 +20,7 @@ use crate::app::panels::middle::common::header_tab::header_tab;
 use crate::app::panels::middle::common::state_edit_field::{path_db_field, slider_state_field};
 use crate::app::panels::middle::{rpc_bind_field, rpc_port_field, zmq_bind_field, zmq_port_field};
 use crate::{
-    NODE_DNS_BLOCKLIST, NODE_DNS_CHECKPOINT, NODE_INPUT, NODE_PRUNNING, NODE_URL,
+    NODE_DNS_BLOCKLIST, NODE_DNS_CHECKPOINT, NODE_FULL_MEM, NODE_INPUT, NODE_PRUNNING, NODE_URL,
     START_OPTIONS_HOVER,
 };
 use egui::TextStyle;
@@ -99,6 +99,9 @@ impl Node {
                         ui.separator();
                         ui.checkbox(&mut self.disable_dns_checkpoint, "DNS checkpoint")
                             .on_hover_text(NODE_DNS_CHECKPOINT);
+                        ui.separator();
+                        ui.checkbox(&mut self.full_memory, "Fast Mode")
+                            .on_hover_text(NODE_FULL_MEM);
                     });
                 });
 

src/disk/state.rs

@@ -338,6 +338,7 @@ pub struct Node {
     pub dns_blocklist: bool,
     pub disable_dns_checkpoint: bool,
     pub path_db: String,
+    pub full_memory: bool,
     pub console_height: u32,
 }
 
@@ -357,6 +358,7 @@ impl Default for Node {
             dns_blocklist: true,
             disable_dns_checkpoint: true,
             path_db: String::new(),
+            full_memory: false,
             console_height: APP_DEFAULT_CONSOLE_HEIGHT,
         }
     }

src/helper/node.rs

@@ -28,6 +28,7 @@ use std::{
     thread,
     time::{Duration, Instant},
 };
+use sysinfo::MemoryRefreshKind;
 use tokio::spawn;
 
 use crate::{
@@ -239,6 +240,16 @@ impl Helper {
         debug!("Node | Creating command...");
         let mut cmd = portable_pty::cmdbuilder::CommandBuilder::new(path.clone());
         cmd.args(args);
+        // if in simple state and enough free memory, enable full memory env
+        if state.simple {
+            let mut sys = sysinfo::System::new();
+            sys.refresh_memory_specifics(MemoryRefreshKind::nothing().with_ram());
+            if sys.available_memory() > 4_000_000_000 {
+                cmd.env("MONERO_RANDOMX_FULL_MEM", "1");
+            }
+        } else if state.full_memory {
+            cmd.env("MONERO_RANDOMX_FULL_MEM", "1");
+        }
         cmd.cwd(path.as_path().parent().unwrap());
         // 1c. Create child
         debug!("Node | Creating child...");

src/utils/constants.rs

@@ -476,6 +476,7 @@ pub const NODE_API_BIND: &str = "bind address of RPC API";
 pub const NODE_API_PORT: &str = "RPC API listen port";
 pub const NODE_ZMQ_BIND: &str = "bind address of ZMQ API";
 pub const NODE_ZMQ_PORT: &str = "ZMQ API listen port";
+pub const NODE_FULL_MEM: &str = "Use 2GB of RAM insteal of 256MB for faster block verification";
 // XMRig
 pub const XMRIG_API_PORT_DEFAULT: u16 = 18088;
 pub const XMRIG_SIMPLE: &str = r#"Use simple XMRig settings: