Re: [Htmlparser-developer] Any reason for using 4096 byte StringBuffer in StringBean?

[Derrick O. <Der...@ro...>]

If you don't specify a starting buffer size you get space for 16 
characters.  Then each time it exceeds the allocated amount it allocates 
twice the space and copies the characters appended so far, which is time 
consuming and memory intensive, perhaps many times (the spent buffers 
are reclaimed by garbage collection eventually, but till then they're 
gobbling memory).  Since the average html page exceeds 16 characters 
it's speedier to specify a larger buffer to start. Maybe 4096 is a bit 
agressive, but I bet it covers a majority of the pages out there and a 
study would need to be done to find out a more optimal size. This is 
only allocated once per StringBean so it's not a big deal either way.

Mr LING MA wrote:

>Hi:
>will the StringBean program use less memory if
>initialize StringBuffer as 0 bytes ? why 4096?
>
>Ling Ma
>
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