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Rails on 1.9: first benchmarks, YARV exposed to non-synthetic tests

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Eigen Class

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Nickname: eigenclass
Registered: Oct, 2005

Eigenclass is a hardcore Ruby blog.
Rails on 1.9: first benchmarks, YARV exposed to non-synthetic tests Posted: Mar 28, 2007 8:38 AM
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News from moriq again. He's on the way to benchmarking real Rails apps under 1.9.

Preliminary results

When benchmarking basic requests with a minimalistic schema (only one int column), even though YARV serviced requests 15% faster, it took much longer to load the environment (50% slower). This comes as no surprise since plain old (evil) eval is slower in YARV.

Unexpected results did come up when benchmarking direct DB requests against sqlite3, both directly and through ActiveRecord:

# sqlite3-ruby select (n=1000)
ruby-1.8.6: 2142 req/sec
ruby-1.8.6: 2153 req/sec
ruby-1.9.0: 2313 req/sec
ruby-1.9.0: 2328 req/sec
  
# activerecord -> sqlite3-ruby select (n=1000)
ruby-1.8.6: 1098 req/sec
ruby-1.8.6: 1103 req/sec
ruby-1.9.0:  801 req/sec
ruby-1.9.0:  806 req/sec

In fact, the mere fact of requiring active_record (and indirectly ActiveSupport) causes a sharp decrease in performance:

sqlite3-ruby-bench-1.jpg

(bm3-as-* is the basic sqlite3 benchmark with "require active_record")

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