Well... compression can always be more effective if the protocol is already "wasteful". By "numeric", if you mean that e.g. each byte is the ASCII representation of a numeric digit, that means that each byte can only contain 10/256 of the possible byte values - fairly wasteful. Just by using 2s-compliment binary encoding, you've already "compressed" your data by as much as 10:1 or better.
- DML On Wed, 9 Jan 2008 22:54:35 +0800 "Steve Johns" <[EMAIL PROTECTED]> wrote: > I heard there was a special compression method which could speed up the > perfomance of the compression if only numeric is in the message. Is that > true? > > On Jan 8, 2008 11:57 PM, Mark <[EMAIL PROTECTED]> wrote: > > > Not sure. I think I would run both cases and see which one performs > > better. I would guess that putting the compression in the IoHandler would > > be faster though. > > > > On Jan 8, 2008 10:47 AM, Steve Johns <[EMAIL PROTECTED]> wrote: > > > > > On Jan 8, 2008 11:08 PM, Mark <[EMAIL PROTECTED]> wrote: > > > > > > > The suggested way is to put the ExecutorFilter *after* the codec > > filter. > > > > See http://mina.apache.org/configuring-thread-model.html, > > specifically > > > > the > > > > "Where should I put an ExecutorFilter in an IoFilterChain?" section. > > > > > > > > --Mark > > > > > > > > > Thanks. Mark. Actually I did read it before. My question is: whether I > > > consider to put my 50ms compression into a ExecutorFilter instead of > > > combined with protocol filter? They are both CPU-bound works. > > > > > > On Jan 8, 2008 4:14 AM, Steve Johns <[EMAIL PROTECTED]> wrote: > > > > Hi > > > > > > > > 1) When I consider I need a ExecutorFilter such as compression? It > > tooks > > > > 50ms to compression my data. > > > > > > > 2) I did the Compression in my codec filter. Should I add an > > > > ExecutorFilter before codec filter? > > > > Thanks. > > > > > > > > > > > > > > > > -- > > > > -------------------------------- > > > > Talent hits a target no one else can hit; Genius hits a target no one > > > else > > > > can see. > > > > > > > > > > > > > > > -- > > -------------------------------- > > Talent hits a target no one else can hit; Genius hits a target no one else > > can see. > >
