From: Brent Roman <brent@...>
Date: 2007-09-25T09:19:50+09:00
Subject: Re: Latest benchmarks


Ed,

Did you do any investigation of the relative vmSizes between
v1.8 and v1.9?

Do you have any rough feel for the memory use of v1.9 vs. v1.8
running these benchmarks?

- brent

>Column 1 is the benchmark name
>Column 2 is the time for 1.8
>Column 3 is the time for 1.9
>Column 4 is the ratio of 1.8 time / 1.9 time
>Column 5 is the log to the base e (natural log) of the ratio.
>
>The statistics below are derived from these natural logs. Specifically,
>Min is the worst case ratio from the test suite, Max is the best case
>ratio from the test suite, and Pxx are the percentiles. What these mean
>is that xx percent of the time, you can expect the ratio to be *below*
>that value. So, since P50 is 5.1, half of the time you can expect the
>ratio to be below 5.1 and half of the time you can expect it to be above
>5.1. Only 25 percent of the time is the ratio below 2.8 percent, etc.
>
>So ... in a nutshell ... 1.9.0 is five times as fast as 1.8.6!
>
>  
>