diff --git a/13.log b/13.log
new file mode 100644
index 0000000..febf665
--- /dev/null
+++ b/13.log
@@ -0,0 +1,13 @@
+AF 2 1 14F0117759
+AF 1 1 1D1E0D15FF
+AF 2 1 70D4B3855
+OR 2 0 22E869AB9A 1 2327CD75D7
+AF 2 1 12F54589D1
+AF 1 0 16EC0573FE
+AF 3 1 1DBA3B2F64
+AF 1 0 22A45121F2
+AF 3 0 BDB8CCB60
+OR 2 0 21CDCD2B81 1 2407EB5978
+AF 3 1 24E1249869
+OR 3 0 231B497C77 1 7C6A3D844
+OR 1 1 161753A88E 0 21069FA53A
diff --git a/demo1.log b/demo1.log
new file mode 100644
index 0000000..900f1de
--- /dev/null
+++ b/demo1.log
@@ -0,0 +1,11 @@
+AT Teppy
+AT Luni
+AT Hamza
+AA USD
+AA BTC
+SR 0 51EB851 0 0 0
+SR 1 51EB851 0 0 0
+AF 1 1 500000000
+AF 2 0 3D09000000000
+AF 3 0 3D09000000000
+OR 1 1 100000000 0 C35000000000
diff --git a/demo13.log b/demo13.log
new file mode 100644
index 0000000..1d8431f
--- /dev/null
+++ b/demo13.log
@@ -0,0 +1,11 @@
+AT Teppy
+AT Hamza
+AA USD
+AA BTC
+SR 0 0 0 0 33333333
+SR 1 0 0 0 33333333
+AF 1 1 500000000
+AF 2 0 3D09000000000
+AF 1 1 1D1E0D15FF
+OR 2 0 231B497C77 1 7C6A3D844
+OR 1 1 161753A88E 0 21069FA53A
diff --git a/demo13x.log b/demo13x.log
new file mode 100644
index 0000000..4d3954c
--- /dev/null
+++ b/demo13x.log
@@ -0,0 +1,12 @@
+AT Teppy
+AT Hamza
+AA USD
+AA BTC
+NOP SR 0 0 0 33333333 33333333
+NOP SR 1 0 0 33333333 33333333
+SR 0 11111111 22222222 33333333 44444444
+SR 1 18888888 28888888 38888888 48888888
+AF 1 1 400000000
+AF 2 0 3D09000000000
+OR 2 0 2800000000 1 100000000
+OR 1 1 100000000 0 1900000000
diff --git a/demo2.log b/demo2.log
new file mode 100644
index 0000000..61510dd
--- /dev/null
+++ b/demo2.log
@@ -0,0 +1,11 @@
+AT Teppy
+AT Luni
+AT Hamza
+AA USD
+AA BTC
+SR 0 0 28F5C28 0 0
+SR 1 0 28F5C28 0 0
+AF 1 1 500000000
+AF 2 0 3D09000000000
+AF 3 0 3D09000000000
+OR 1 1 100000000 0 C35000000000
diff --git a/demo3.log b/demo3.log
new file mode 100644
index 0000000..7fdf7a5
--- /dev/null
+++ b/demo3.log
@@ -0,0 +1,11 @@
+AT Teppy
+AT Luni
+AT Hamza
+AA USD
+AA BTC
+SR 0 0 0 33333333 0
+SR 1 0 0 33333333 0
+AF 1 1 500000000
+AF 2 0 3D09000000000
+AF 3 0 3D09000000000
+OR 1 1 100000000 0 C35000000000
diff --git a/demo4.log b/demo4.log
new file mode 100644
index 0000000..dc754b9
--- /dev/null
+++ b/demo4.log
@@ -0,0 +1,11 @@
+AT Teppy
+AT Luni
+AT Hamza
+AA USD
+AA BTC
+SR 0 0 0 0 19999999
+SR 1 0 0 0 19999999
+AF 1 1 500000000
+AF 2 0 3D09000000000
+AF 3 0 3D09000000000
+OR 1 1 100000000 0 C35000000000
diff --git a/demox.log b/demox.log
index 3d979bf..0e76014 100644
--- a/demox.log
+++ b/demox.log
@@ -3,9 +3,9 @@ AT Luni
 AT Hamza
 AA USD
 AA BTC
+SR 0 51EB851 28F5C28 33333333 19999999
 SR 1 51EB851 28F5C28 33333333 19999999
 AF 1 1 500000000
 AF 2 0 3D09000000000
 AF 3 0 3D09000000000
-SR 0 51EB851 28F5C28 33333333 19999999
 OR 1 1 100000000 0 C35000000000
diff --git a/demoy.log b/demoy.log
new file mode 100644
index 0000000..0e76014
--- /dev/null
+++ b/demoy.log
@@ -0,0 +1,11 @@
+AT Teppy
+AT Luni
+AT Hamza
+AA USD
+AA BTC
+SR 0 51EB851 28F5C28 33333333 19999999
+SR 1 51EB851 28F5C28 33333333 19999999
+AF 1 1 500000000
+AF 2 0 3D09000000000
+AF 3 0 3D09000000000
+OR 1 1 100000000 0 C35000000000
diff --git a/demoz.log b/demoz.log
new file mode 100644
index 0000000..014aa9b
--- /dev/null
+++ b/demoz.log
@@ -0,0 +1,10 @@
+AT Teppy
+AT Luni
+AT Hamza
+AA USD
+AA BTC
+SR 0 51EB851 28F5C28 33333333 19999999
+SR 1 51EB851 28F5C28 33333333 19999999
+AF 1 1 500000000
+AF 2 0 3D09000000000
+AF 3 0 3D09000000000
diff --git a/src/finum.rs b/src/finum.rs
index e630dae..9ad0545 100644
--- a/src/finum.rs
+++ b/src/finum.rs
@@ -36,6 +36,9 @@ impl FiNum {
     pub fn recip(&self) -> Self {
         FiNum((0x8000000000000000u64/self.0)<<1)
         }
+    pub fn fmt_pct2(&self) -> String {
+        format!("{:>5.2}%", (100.0*(self.0 as f64))/((1u64<<32) as f64))
+        }
     pub fn fmt_recip(&self) -> String {
        if *self<FiNum::one() { format!("1/{}",self.recip()) }
        else { format!("{}",self) }
@@ -120,6 +123,7 @@ impl Div for FiNum {
     
 impl std::fmt::Display for FiNum {
     fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
+//        write!(f, "{:08X}.{:08X}", self.0>>32,self.0&0xFFFFFFFF)
         write!(f, "{:.8}", (self.0 as f64)/((1u64<<32) as f64))
     }
 }
diff --git a/src/main.rs b/src/main.rs
index 2bbd0c0..49c7713 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -50,6 +50,8 @@ use std::collections::HashMap;
 use std::cmp::Ordering;
 use rand::prelude::*;
 use rand::rngs::StdRng;
+use std::time::Instant;
+
 //use hashbrown::HashMap;
 mod finum;
 use finum::FiNum;
@@ -110,8 +112,8 @@ struct Order {
     sell_qty: FiNum,
     sell_remain: FiNum,
     buy_qty: FiNum,
-    royalty_remain: FiNum,     // Based on royalty1
-    commission_remain: FiNum,  // Based on commission1
+    royalty_remain: FiNum,     // Based on royalty1. The thing that is being sold
+    commission_remain: FiNum,  // Based on commission1. The thing that is being sold
     owner: usize,
     order_id: usize,
     }
@@ -200,17 +202,14 @@ impl RoyaltyTree {
             self.tree[index].lazy=FiNum::zero();
         } else {
             let lazy=self.tree[index].lazy;
-//            println!("Index is {}, lazy.0 {}",index,lazy.serialize());
-//            self.raw_dump();
             let d1=if lazy>0.into() { lazy*self.weight_here(index)/self.weight_here_below(index) } else { FiNum::zero() };
             let d02=lazy-d1;
             let index_left =wt_left (index).unwrap();
             let index_right=wt_right(index).unwrap();
-//            println!("D02 is {}, self.weight_here_below({}) is {}, self.weight_below({}) is {}",d02.serialize(),index_left,self.weight_here_below(index_left),index,self.weight_below(index));
             if self.weight_below(index)>0.into() {
                 let d0=if d02>0.into() { d02*self.weight_here_below(index_left)/self.weight_below(index) } else { FiNum::zero() };
                 let d2=d02-d0;
-                self.sanity();
+//                self.sanity();
 	        if !self.weight_here_below(index_left ).is_zero() { self.tree[index_left ].lazy+=d0; } else { self.spare_change+=d0; }
                 if !self.weight_here_below(index_right).is_zero() { self.tree[index_right].lazy+=d2; } else { self.spare_change+=d2; }
                 }
@@ -220,7 +219,6 @@ impl RoyaltyTree {
             self.tree[index].acc+=d1;
             self.tree[index].lazy=FiNum::zero();
             }
-//	println!("Royalty at {} is {}",index,self.tree[index].acc);
         self
         }
     fn sanity(&self) {
@@ -243,7 +241,10 @@ impl RoyaltyTree {
         if self.next_entry==0 || FiNum::is_zero(self.tree[self.forefather()].weight) { self.spare_change+=amount }
         else {
             let ff=self.forefather();
-            if self.weight_here_below(ff).is_zero() { self.spare_change+=amount } else { self.tree[ff].lazy+=amount };
+            if self.weight_here_below(ff).is_zero() { self.spare_change+=amount } else {
+                self.tree[ff].lazy+=amount+self.spare_change;
+                self.spare_change=FiNum::zero()
+                };
             }
         }
     // We really need two methods: remove an order and redistribute, remove some and return captured amount
@@ -302,7 +303,6 @@ impl RoyaltyTree {
 	    self.expand_to(ff1*2);
 	    while ff0<ff1 {
 	        ff0=wt_parent(ff0);
-                println!("Setting self.tree[{}].weight to {} and count to {}",ff0,w,c);
 		self.tree[ff0].weight=w;
 		self.tree[ff0].count=c;
 		}
@@ -392,14 +392,34 @@ impl Market {
         println!("Sanity Checking Market...");
         for (cur,amt) in self.money_supply.iter() {
             println!("Money Supply {}: {}",self.number_to_name(*cur),*amt);
-            let mut acc_orders=FiNum::new(0);
+            let mut off_orders=FiNum::new(0);
+            let mut off_roy=FiNum::new(0);
+            let mut off_com=FiNum::new(0);
             for (ac,pq) in &self.orders { if ac.0==*cur {
-                for off in &*pq.v { acc_orders+=off.sell_remain; }
+                for off in &*pq.v {
+                    off_orders+=off.sell_remain;
+                    off_roy   +=off.royalty_remain;
+                    off_com   +=off.commission_remain;
+                    }
                 } }
             let mut acc_traders=FiNum::new(0);
-            for t in &self.traders { acc_traders+=t.get_balance(*cur); }
-            let acc=acc_orders+acc_traders;
-            println!("    {}: Orders {} Traders {} Total {} Should Be {}",self.number_to_name(*cur),acc_orders,acc_traders,acc,*amt);
+            let mut ntraders=0;
+            for t in &self.traders {
+                let b=t.get_balance(*cur);
+                if !b.is_zero() { ntraders+=1 }
+                acc_traders+=b;
+                }
+            let ar = self.royalties.get(cur).map(|rt| rt.acc_total()).unwrap_or(FiNum::zero());
+            let sc = self.royalties.get(cur).map(|rt| rt.spare_change).unwrap_or(FiNum::zero());
+            let acc=acc_traders+off_orders+off_roy+off_com+ar+sc;
+            println!("    Traders                 {}",acc_traders);
+            println!("    Orders                  {}",off_orders);
+            println!("    Royalties in Orders     {}",off_roy);
+            println!("    Commissions in Orders   {}",off_com);
+            println!("    Accumulated Royalties   {}",ar);
+            println!("    Spare Change Royalties  {}",sc);
+            println!("    Total from Above        {}",acc);
+            println!("    Total from Money Supply {} {}",*amt,if *amt!=acc { " Mismatch!" } else { "" });
             }
         }
     fn random_order_id(&mut self) -> Option<usize> {
@@ -468,12 +488,12 @@ impl Market {
                 let rt=self.royalties.get_mut(&ap.1).unwrap();
                 let indexr=rt.order_finder.get(&off.order_id).unwrap();
                 let royalty_amt=rt.get_royalty(*indexr);
-                println!("    {} @ {} ({}) OrderID: {} Royalties: {}",
+                println!("    {} @ {} ({}) OrderID: {} Royalties Accumulated: {} Royalties Offered {} Commissions Offered: {}",
                          off.sell_remain,              // off.buy_qty*off.sell_remain/off.sell_qty,
                          (off.buy_qty/off.sell_qty).fmt_recip(),
                          self.traders[off.owner as usize].name,
 			 off.order_id,
-                         royalty_amt);
+                         royalty_amt,off.royalty_remain,off.commission_remain);
                 }
             }
 	println!("Royalty       Accum  SpareChange");
@@ -515,6 +535,7 @@ impl Market {
                 let cmd=Command::deserialize(line);
 		if let Command::NOP(comment)=cmd { println!("{}",comment); }
 		else {
+                    println!("{}",cmd.explain(self));
   		    let res=self.execute(&cmd);
 		    println!("{}",res.describe());
 		    }
@@ -549,11 +570,14 @@ impl Market {
         Result::ExecutedBatch(log)
         }
 */
-    fn retract_order(&mut self, order_id:usize) -> Result { // Still need to credit back funds! But first fix the bug where we are creating commission0 from thin air in make_order (not charging seller)
+    fn retract_order(&mut self, order_id:usize) -> Result { // Still need to credit back funds!
         let pair=self.order_finder.get(&order_id).unwrap();
+        let sell_type=pair.0;
         let queue=self.orders.get_mut(pair).unwrap();
         let queue_index=*queue.order_finder.get(&order_id).unwrap();
         let order=&queue.v[queue_index];
+        let credit=order.sell_remain+order.royalty_remain+order.commission_remain;
+        self.traders[order.owner].add_balance(sell_type,credit);
         println!("Order owner is {}",order.owner);
         // Remove from royalties
         let rt=self.royalties.get_mut(&pair.0).unwrap();
@@ -582,10 +606,9 @@ impl Market {
         let mut commission_acc=FiNum::zero();
         let new_order_id:usize;
         while execute_if_possible && buy_qty>FiNum::new(0) && self.orders.contains_key(&ap) && self.orders.get(&ap).unwrap().v.len()>0 {
-            let mut elt=self.orders.get(&ap).unwrap().v[0].clone();
+            let elt=self.orders.get(&ap).unwrap().v[0].clone();
             if sell_qty/buy_qty_initial>=elt.buy_qty/elt.sell_qty { // Transact at ask_rate
                 let qty=std::cmp::min(elt.sell_remain,buy_qty);
-                elt.sell_remain-=qty;
                 buy_qty-=qty;
                 let pay_qty=qty*elt.buy_qty/elt.sell_qty;
                 self.traders[owner    ].sub_balance(sell_type,pay_qty);
@@ -597,9 +620,10 @@ impl Market {
                 let cq0=commission0_qty*pay_qty/sell_qty_initial;
                 let rq1=royalty1_qty   *pay_qty/sell_qty_initial;
                 let cq1=commission1_qty*pay_qty/sell_qty_initial;
-//	        println!("Transact at ask rate. Qty={} elt.sell_remain={} elt.royalty_remain={} elt.commission_remain={}",qty,elt.sell_remain,elt.royalty_remain,elt.commission_remain);
+	        //println!("Transact at ask rate. Qty={} elt.sell_remain={} elt.royalty_remain={} elt.commission_remain={}",qty,elt.sell_remain,elt.royalty_remain,elt.commission_remain);
                 let rq2=if !elt.sell_remain.is_zero() { elt.royalty_remain   *qty/elt.sell_remain } else { FiNum::zero() };
                 let cq2=if !elt.sell_remain.is_zero() { elt.commission_remain*qty/elt.sell_remain } else { FiNum::zero() };
+                //elt.sell_remain-=qty;
                 royalty_acc+=rq0+rq1;
                 commission_acc+=cq0+cq1;
                 royalty0_qty-=rq0;
@@ -609,17 +633,23 @@ impl Market {
                 self.royalties.entry(sell_type).or_insert(RoyaltyTree::new()).add_royalty(rq0+rq1);
                 self.royalties.entry(buy_type) .or_insert(RoyaltyTree::new()).add_royalty(rq2);
 		let top_order=self.orders.get_mut(&ap).unwrap().peek();
+                //println!("top_order.commission_remain={} cq2={} elt.commission_remain={} qty={} elt.sell_remain={}",top_order.commission_remain,cq2,elt.commission_remain,qty,elt.sell_remain);
                 top_order.royalty_remain-=rq2;
                 top_order.commission_remain-=cq2;
+                //println!("Crediting {} commissions to house {}+{}+{}",sell_type,cq0,cq1,cq2); 
+                self.traders[0].add_balance(sell_type,cq0+cq1);
                 self.traders[0].add_balance(buy_type,cq2);
-                if elt.sell_remain==0.into() { // deal with pennies stored in royalty_remain and commission_remain
-                    self.traders[0].add_balance(buy_type,top_order.commission_remain);
-                    self.royalties.entry(buy_type).or_insert(RoyaltyTree::new()).add_royalty(top_order.royalty_remain);
-                    self.royalties.get_mut(&sell_type).unwrap().remove_order_id(top_order.order_id);
+                if elt.sell_remain==qty { // deal with pennies stored in royalty_remain and commission_remain
+                    //if !top_order.commission_remain.is_zero() { println!("Little commission? {} ",top_order.commission_remain); }
+                    let rq3=top_order.royalty_remain;
+                    let cq3=top_order.commission_remain;
+                    self.royalties.get_mut(&buy_type).unwrap().remove_order_id(top_order.order_id);
                     self.order_finder.remove(&top_order.order_id);
                     self.traders[top_order.owner].order_finder.remove(&top_order.order_id);
                     self.orders.get_mut(&ap).unwrap().pop(); // This removes id (which is stored as part of the Order) from self.order's finder
                     self.order_count-=1;
+                    self.traders[0].add_balance(buy_type,cq3);
+                    self.royalties.entry(buy_type).or_insert(RoyaltyTree::new()).add_royalty(rq3);
                 } else {
                     top_order.sell_remain-=qty;
                     }
@@ -637,8 +667,8 @@ impl Market {
                 self.next_order_id+=1;
                 
                 // Pay royalties to existing orders on the sell size
-                self.royalties.entry(sell_type).or_insert(RoyaltyTree::new()).add_royalty(royalty0_qty+royalty1_qty);
-                royalty_acc+=royalty0_qty+royalty1_qty;
+                self.royalties.entry(sell_type).or_insert(RoyaltyTree::new()).add_royalty(royalty0_qty);
+                royalty_acc+=royalty0_qty;
                 
                 // Create a new entry in the RoyaltyTree to accumulate for this Order
                 let rt=self.royalties.entry(buy_type).or_insert(RoyaltyTree::new());
@@ -649,15 +679,18 @@ impl Market {
                 // Insert the new order in the priority queue (OrderQueue)
                 let neworder=Order { owner:owner, sell_qty:sell_qty_remain, sell_remain:sell_qty_remain, buy_qty:buy_qty, royalty_remain:royalty1_qty, commission_remain:commission1_qty, order_id:id  };
                 bids.insert(neworder);
+                royalty_acc+=royalty1_qty;
+                commission_acc+=commission1_qty;
                 self.order_count+=1;
                 self.order_finder.insert(id,(sell_type,buy_type));
                 self.traders[owner].sub_balance(sell_type,sell_qty_remain);
-                commission_acc+=commission0_qty+commission1_qty;
+                self.traders[owner].sub_balance(sell_type,commission0_qty);
+                self.traders[0].add_balance(sell_type,commission0_qty);
                 self.traders[owner].order_finder.insert(id,(sell_type,buy_type));
 		log.push(format!("Moved {} {} ({}) to market",sell_qty_remain,self.number_to_name(sell_type),self.traders[owner].name));
                 }
             }
-        self.traders[0].add_balance(sell_type,commission_acc);
+//        self.traders[0].add_balance(sell_type,commission_acc);
         self.traders[owner].sub_balance(sell_type,royalty_acc+commission_acc);
 	log.push(format!("Paid {} {} in royalties and {} {} ({}) in commissions",royalty_acc   ,self.number_to_name(sell_type),
 	                                                                         commission_acc,self.number_to_name(sell_type),self.traders[owner].name));
@@ -947,6 +980,28 @@ impl Command {
 	    _ 						   	  => format!("NOP (This should never happen)"),
 	    }
 	}
+    fn explain(&self, m: &Market) -> String {
+        match self {
+	    Self::AddTrader { user: name }                        => format!("addtrader {}",name),
+	    Self::AddAsset { asset: name }                        => format!("addasset {}",name),
+	    Self::SetRoyalty { asset_id, roy0, com0 , roy1 , com1 }
+	    		       		 	                  => format!("setroyalty {} {} {} {} {}",m.number_to_name(*asset_id),roy0,com0,roy1,com1),
+	    Self::AddFunds { user_id, asset_id, amt }
+            		     	      	                          => format!("addfunds {} {} {}",m.traders[*user_id].name,m.number_to_name(*asset_id),amt),
+	    Self::SubFunds { user_id, asset_id , amt }
+	    		     	      	     	       	     	  => format!("subfunds {} {} {}",m.traders[*user_id].name,m.number_to_name(*asset_id),amt),
+	    Self::Order { user_id, sell_type, sell_qty, buy_type, buy_qty }
+	                                                          => format!("order {} {} {} {} (as {})",sell_qty,m.number_to_name(*sell_type),buy_qty,m.number_to_name(*buy_type),m.traders[*user_id].name),
+	    Self::OrderBatch { user_id, sell_type, sell_qty, buy_type, buy_qty }
+	                                                          => format!("orderbatch {} {} {} {} (as {})",sell_qty,m.number_to_name(*sell_type),buy_qty,m.number_to_name(*buy_type),m.traders[*user_id].name),
+            Self::ExecuteBatch { asset_type0, strike0, asset_type1, strike1 }
+                                                                  => format!("executebatch {} {} {} {}",strike0,m.number_to_name(*asset_type0),strike1,m.number_to_name(*asset_type1)),
+	    Self::RetractOrder { order_id }              	  => format!("retract {}",order_id),
+	    Self::Error(str)                                      => format!("NOP Error: {}",str),
+	    Self::NOP(str)                                        => format!("NOP {}",clean(str)),
+	    _ 						   	  => format!("NOP (This should never happen)"),
+            }
+        }
     fn deserialize(line: String) -> Self {
         let tokens: Vec<&str> = line.split_whitespace().collect();
         match tokens.as_slice() {
@@ -1010,21 +1065,18 @@ impl Market {
 	    Command::SetRoyalty { asset_id,roy0,com0,roy1,com1 } => {
                 if *roy0+*com0+*roy1+*com1<FiNum::new_i32(1) {
                     self.set_royalty(*asset_id,*roy0,*com0,*roy1,*com1);
-    		    println!("Set royalty for {} to {} {} {} {}",asset_id,roy0,com0,roy1,com1);
 		    Result::Ok
 		    }
 		else { Result::Error(format!("Sum of royalties and commissions should be less than 1.00")) }
 		}
 	    Command::AddFunds{ user_id, asset_id, amt } => {
                 self.add_trader_balance(*user_id,*asset_id,*amt);
-//                println!("Added {} {} to {}",*amt,self.number_to_asset(*asset_id).name,self.traders[*user_id].name);
 		Result::FundsRemaining(self.get_trader_balance(*user_id,*asset_id))
 		}
 	    Command::SubFunds { user_id,asset_id,amt } => {
                 if *amt>self.get_trader_balance(*user_id,*asset_id) { Result::Error(format!("Not enough {} in {}",asset_id,user_id)) }
 		else {
 		    self.sub_trader_balance(*user_id,*asset_id,*amt);
-                    println!("Subtracted {} {} from {}",*amt,self.number_to_asset(*asset_id).name,self.traders[*user_id].name);
                     Result::FundsRemaining(self.get_trader_balance(*user_id,*asset_id))
 		    }
 		}
@@ -1161,7 +1213,8 @@ fn interactive(m: &mut Market, mut out: Option<File>) {
             Ok(input) => {
                 let tokens: Vec<&str> = input.split_whitespace().collect();
                 let cmd:Command=match tokens.as_slice() {
-                    ["dump"] => { m.dump(); m.sanity_check(); Command::None },
+                    ["dump"] => { m.dump(); Command::None },
+                    ["sanity"] => { m.sanity_check(); Command::None },
                     ["randomorder"] => { println!("Random OrderID: {:?}",m.random_order_id()); Command::None }
                     ["login", username] => {
                         if let Some(t)=m.trader_name2num.get_mut(*username) { trader=*t; println!("Logged in as {}",m.traders[trader].name) } else { println!("Trader {} not found.",username) }
@@ -1198,6 +1251,7 @@ fn interactive(m: &mut Market, mut out: Option<File>) {
                         }
                     ["randomcommands", qty] => {
                         let qty:u32=qty.parse().unwrap();
+                        let start = Instant::now();
                         for i in 0..qty {
                             let cmd=m.random_command();
 //                            println!("RandomCommand #{}: {}",1+i,cmd.serialize());
@@ -1210,6 +1264,8 @@ fn interactive(m: &mut Market, mut out: Option<File>) {
                             let res=m.execute(&cmd);
 //                            println!("Result: {}",res.describe());
                             }
+                        let duration = start.elapsed();
+                        println!("Ran {} commands in {:?}",qty,duration);
                         Command::None
                         },
                     ["quit"] => { return },