I have new intel on this. A colleague generated a flame graph.
I cannot share the raw svg unfortunately, but I cropped the Feature JAXB
It is about 25% of the overall startup time just to boot up the jaxb
On Fri, Jul 22, 2016 at 10:06 AM, Fabian Lange <fabian.la...@codecentric.de>
> Thanks, good hint.
> For those inclined to understand my request, attached is the output of
> Using the xml binding feature approximately loads 800 classes (which
> represent about 5MB memory)
> I haven't checked alternatives to the jaxb. And I am aware that this is a
> more esoteric requirement to reduce footprint.
> However, I am sure if this would not be from the JDK, nobody would pull in
> a 5MB dependency to parse a single xml file.
> On Fri, Jul 22, 2016 at 9:25 AM, Guillaume Nodet <gno...@apache.org>
>> Note that on older branches, the feature repositories are still parsed
>> using DOM
>> The xml is now also written, that may be the reason why we switched.
>> 2016-07-14 23:11 GMT+02:00 Fabian Lange <fabian.la...@codecentric.de>:
>> > Hi,
>> > i am looking into ways to trim down Karaf. I notices that Karaf uses
>> > to parse features.xml - However this is the only application of JaxB.
>> > Could somebody more involved help me to figure out if it is worth to
>> > replace it with manual marshalling? I assume other xmls are parsed
>> > differently?
>> > Advantage would be that the whole jaxb infrastructure could be avoided,
>> > including the contexts.
>> > I know manual parsing is a pain, but anyway, just wanted to throw this
>> > maybe somebody has a good suggestion.
>> > Fabian
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>> Guillaume Nodet
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>> Email: gno...@redhat.com
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