Update benchmark

.gitignore

@@ -1,3 +1,2 @@
-fastlist.exe
-fastlist.obj
-timeit.dat
+fastlist.*
+timeit.*

README.md

@@ -1,18 +1,19 @@
 # fastlist
 
-**Like `tasklist`, but 4x faster.**
+**Like `tasklist`, but 5x faster.**
 
 ```
-    Name  Process Time  System Calls  Context Switches  Page Faults  Total I/O
-fastlist   0:00:00.035          8217              1556         4752     176917
-tasklist   0:00:00.141         62314             26919         4927    1346001
+    Name  Process Time  System   Context    Page  Total I/O
+                         Calls  Switches  Faults
+fastlist   0:00:00.031    7933      1571    4693     174322
+tasklist   0:00:00.148   71404     28577    6773    1606046
 ```
 
 ## Development
 
 - **Install dependencies:** <code><a href="https://scoop.sh/">scoop</a> install visualc rktools2k3</code>
 - **Build binary**: <code><a href="https://msdn.microsoft.com/en-us/library/610ecb4h.aspx">cl</a> fastlist.cpp</code>
-- **Run benchmark**: [`bench`](bench.cmd)
+- **Run benchmark**: <code><a href="https://github.com/MarkTiedemann/fastlist/blob/master/bench.cmd">bench</a> 100</code>
 
 ## License
 

bench.cmd

@@ -1,17 +1,40 @@
 @echo off
 setlocal enabledelayedexpansion
-set /a runs = 24
+
+:: determine run count (either first argument or 100 by default)
+set "runs="&for /f "delims=0123456789" %%i in ( "%1" ) do set runs=%%i
+if defined runs (
+  set /a runs = 100
+) else (
+  if "%1" == "" ( set /a runs = 100 ) else ( set /a runs = %1 )
+)
+
+:: cleanup temp files
 if exist timeit.dat del timeit.dat
+if exist timeit.res del timeit.res
+if exist timeit.cnt del timeit.cnt
+
+:: get carriage return
 for /f %%r in ( 'copy /Z %~f0 nul' ) do set cr=%%r
+
 for /l %%i in ( 1, 1, !runs! ) do (
+  :: print progress
   < nul set /P = # %%i / !runs! !cr!
+
+  :: run benchmark
   timeit tasklist > nul 2>&1
   timeit fastlist > nul 2>&1
 )
+
+:: count excluded runs
+timeit -d -t > timeit.res 2>&1
+findstr EXCL timeit.res | find /c /v "@" > timeit.cnt
+for /f "delims=" %%x in ( timeit.cnt ) do set excl=%%x
+set /a excl = %excl% / 2
+
+:: print results
 echo.
 echo.
 timeit -t
 echo.
-set /a excl = !runs! - !runs! / 5 * 4
-echo !excl! runs excluded
-echo.
+echo !excl! runs excluded each