+# parse arguments
+for {set j 0} {$j < [llength $argv]} {incr j} {
+ set opt [lindex $argv $j]
+ set arg [lindex $argv [expr $j+1]]
+ if {$opt eq {--tests}} {
+ set ::tests $arg
+ incr j
+ } elseif {$opt eq {--datasize}} {
+ set ::datasize $arg
+ incr j
+ } elseif {$opt eq {--requests}} {
+ set ::requests $arg
+ incr j
+ } else {
+ puts "Wrong argument: $opt"
+ exit 1
+ }
+}
+