Put the following two scripts in the same prim. Under mono they exchange about link 22 messages per second. Under the old VM they exchange about 44 messages per second. === Script 1 =========================================================================== integer count; integer limit = 100; float start; default { touch_start(integer total_number) { state run; } } state run { state_entry() { llOwnerSay("Running"); count = 0; start = llGetTime(); llMessageLinked(LINK_THIS, 1, "", NULL_KEY); } touch_start(integer total_number) { llOwnerSay("Abort"); state default; } link_message(integer sender, integer num, string str, key id) { if (num == 2) { if (++count < limit) { llMessageLinked(LINK_THIS, 1, "", NULL_KEY); } else { float end = llGetTime(); llOwnerSay("Elapsed: " + (string)(end-start) + " MPS: " + (string)((limit*2)/(end - start))); state default; } } } } === Script 1 =========================================================================== default { link_message(integer sender, integer num, string str, key id) { if (num == 1) { llMessageLinked(LINK_THIS, 2, "", NULL_KEY); } } }