Add the --size option to the test/speedtest.tcl script.

FossilOrigin-Name: 6b9007cb30257ca97de74dec1df47f46f238f034083517a51c24334e4bd30663

test/speedtest.tcl

@@ -27,6 +27,7 @@ Other options include:
    --lookaside N SZ      Lookahead uses N slots of SZ bytes each.
    --pagesize N          Use N as the page size.
    --quiet | -q          "Quite".  Put results in file but don't pop up editor
+   --size N              Change the test size.  100 means 100%.  Default: 5.
    --testset TEST        Specify the specific testset to use.  The default
                          is "mix1".  Other options include: "main", "json",
                          "cte", "orm", "fp", "rtree".
@@ -78,6 +79,14 @@ for {set i 0} {$i<[llength $argv]} {incr i} {
         incr i
         set testset [lindex $argv $i]
       }
+      -size -
+      --size {
+        incr i
+        set newsize [lindex $argv $i]
+        if {$newsize<1} {set newsize 1}
+        set speedtestflags \
+          [regsub {.-size \d+} $speedtestflags "-size $newsize"]
+      }
       -n -
       -dryrun -
       --dryrun {