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require 'benchmark/ips'
def create_stack_trace(n, &block)
return create_stack_trace(n - 1, &block) if n > 0
yield
end
[10, 50, 100].each do |frames|
create_stack_trace(frames) do
Benchmark.ips do |x|
x.report("use caller (#{caller.count} frames)") do
exception = RuntimeError.new("boom")
exception.set_backtrace caller
exception.backtrace
end
x.report("use raise (#{caller.count} frames)") do
exception = begin
raise "boom"
rescue => e
e
end
exception.backtrace
end
x.compare!
end
end
end
__END__
Calculating -------------------------------------
use caller (16 frames)
4.986k i/100ms
use raise (16 frames)
4.255k i/100ms
-------------------------------------------------
use caller (16 frames)
52.927k (± 9.9%) i/s - 264.258k
use raise (16 frames)
50.079k (±10.1%) i/s - 251.045k
Comparison:
use caller (16 frames): 52927.3 i/s
use raise (16 frames): 50078.6 i/s - 1.06x slower
Calculating -------------------------------------
use caller (56 frames)
2.145k i/100ms
use raise (56 frames)
2.065k i/100ms
-------------------------------------------------
use caller (56 frames)
22.282k (± 9.3%) i/s - 111.540k
use raise (56 frames)
21.428k (± 9.9%) i/s - 107.380k
Comparison:
use caller (56 frames): 22281.5 i/s
use raise (56 frames): 21428.1 i/s - 1.04x slower
Calculating -------------------------------------
use caller (106 frames)
1.284k i/100ms
use raise (106 frames)
1.253k i/100ms
-------------------------------------------------
use caller (106 frames)
12.437k (±10.6%) i/s - 62.916k
use raise (106 frames)
10.873k (±12.6%) i/s - 53.879k
Comparison:
use caller (106 frames): 12437.4 i/s
use raise (106 frames): 10873.2 i/s - 1.14x slower
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