Chris Double wrote:
I rewrote an existing web application of mine in Ur/Web last weekend
to see how it performed vs the current one. [...]
The original pool server I wrote in another language struggled at
about 20 work requests per second. Once it hit 30 it would peg the
server at 100% CPU and eventually fall over. The Ur/Web version has
hit 70 work requests per second and averages 40-50. This is using very
low CPU and looks to be able to scale higher quite nicely. Previously
the dealing with the web requests was the bottleneck. With this
version it's mainly the database that's using more of the CPU. Ur/Web
sits with very low memory and handles it fine.
This is great news! Is this application open source? Would you mind
saying which language/framework you used for the prior version?
Have you done any concurrency scaling performance comparison of the two
versions? Especially with Postgres as the database backend, I wouldn't
be surprised if the Ur/Web version scales better, too, as you increase
the number of threads (via the "-t" command-line parameter to the
application).
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