[Bitcoin-development] performance testing for bitcoin

Joel Joonatan Kaartinen joel.kaartinen at gmail.com
Thu Oct 4 09:55:54 UTC 2012

For script evaluation benchmarking, I don't think just a good
approximation of real-world traffic is enough. You really need to
benchmark the worst case scenarios, otherwise you could be creating a
DoS vulnerability.

- Joel

ke, 2012-10-03 kello 13:57 -0400, Ian Miers kirjoitti:
> Script evaluation performance was what I was primarily concerned
> with.  I'm fooling around with adding some new instruction types.
> The tricky part is that to test how that effects performance, you need
> to be able to intersperse transactions with the new instructions with
> existing ones.  For accuracy, you'd like your simulated traffic to at
> least approximate the real world traffic.
> Also, is there any bench-marking / instrumentation in bitcoind ? 
> Ian
> On Wed, Oct 3, 2012 at 1:43 PM, Jeff Garzik <jgarzik at exmulti.com>
> wrote:
>         On Wed, Oct 3, 2012 at 1:38 PM, Ian Miers <imiers1 at jhu.edu>
>         wrote:
>         > Whats the best way to get performance numbers for
>         modifications to bitcoin ?
>         > Profiling it while running on testnet might work, but that
>         would take a
>         > rather long time to get data.
>         > Is there anyway to speed this up  if we only needed to
>         provide  relative
>         > performance between tests. (in a sense a fast performance
>         regression test).
>         You have to be specific about what you're measuring, because
>         "performance" is vague.
>         You can measure many aspects of blockchain performance by
>         importing
>         blocks via -loadblock=FILE.
>         Other performance measurements like "how fast does a block
>         relay
>         through the network" cannot be as easily measured.
>         --
>         Jeff Garzik
>         exMULTI, Inc.
>         jgarzik at exmulti.com
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