Is pcall heavy?

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#1

i’m curious how heavy pcall is, because i have a loop for simulating all of the projectiles in the game, and if 1 error happens then it breaks permanently. the loop runs for every projectile once every frame and i was curious if i could use pcall up to at most 50 times each frame in order to prevent the projectiles from breaking

#2

Just checked by creating 250 parts using both normal function calls and using pcall:
image

It’s only slightly slower and I don’t think you’re gonna be creating 250 parts at once anytime soon.
However, I don’t think you should be wrapping them in a pcall at all and you should just handle and prevent the error instead

Code tested with 
local function doSomething()
	local part = Instance.new("Part")
	part.Parent = workspace
end

print("NORMAL")
local a = os.clock()
for i = 1, 250 do
	doSomething()
end
print(os.clock() - a)

print("PCALL")
local b = os.clock()
for i = 1, 250 do
	pcall(doSomething)
end
print(os.clock() - b)
1 Like
#3

Just because pcall() catches errors it doesn’t mean those errors are handled, the negative consequences of those errors are still going to take place.