On Wed, Feb 26, 2014 at 10:13 PM, jCoder <[email protected]> wrote:
> I was able to change the BufferedImage to an ImageIcon which is
> Serializable.
> This along with using the FST Serialization class/jar I was able to improve
> the over all write time to about 10 seconds for a total write size of about
> 140 MB
> Which is still only 14MB/s write speed when I know I can write at 150+MB/s
>
> My question is can ProtoBuf handle serializing an ImageIcon, Color, or any
> Java objects besides basic Strings and Ints? and is it faster the FST?

Protobuf does not handle serialization of Java objects. You can give
it a byte[] array (or an int/float/etc or a String). Hence my
suggestion for the benchmark. I suspect that the majority of the time
is going to computing the byte[] array representing your object, which
you'd have to do for protobuf anyways.

>
> Also one of my custom object classes has a nested object class inside of it,
> will this slow down serialization?
>
>
> On Wednesday, February 26, 2014 9:10:24 PM UTC-5, Ilia Mirkin wrote:
>>
>> On Tue, Feb 25, 2014 at 3:03 PM, jCoder <[email protected]> wrote:
>> > I was wondering if anyone had any success implementing this with a
>> > HashMap
>> > that has a pointer to a BufferedImage.
>> > Example:
>> > Map thumb = new HashMap<String, BufferedImage>();
>> >
>> > I am currently using Serialization with a custom writeObject() and
>> > readObject() to turn the BufferedImage into a byte[] and back again.
>> >
>> > However this process takes roughly 25 second+ for approximately 18,000
>> > BufferedImages (size: 16pixels x 12pixels) previously loaded into memory
>> > to
>> > be serialized into a file (resulting size 9,408 KB).
>> > Please note this all happening on a SSD (so disk write speed should not
>> > be
>> > an issue).
>> >
>> > There has be a faster way to do this perhaps Protocol Buffers can help,
>> > I am
>> > just not sure the best way to handle a BufferedImage with it would be.
>> >
>> > Any help would be greatly appreciated.
>>
>> Try writing a benchmark that simply converts the BufferedImages to
>> byte[] and throws away the results. That's a lower-bound on your
>> overall serialization speed (without switching away from BufferedImage
>> to something else).
>>
>>   -ilia
>
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