Re: Why is JAR so slow?
- From: IchBin <weconsul@xxxxxxx>
- Date: Fri, 31 Mar 2006 14:11:03 -0500
Wibble0@xxxxxxxxx wrote:
Roedy Green wrote:Just and aside question? I thought the jikes was not being developed at IBM any more or they are phasing it out..On Fri, 31 Mar 2006 07:21:13 -0500, Wibble <Wibble@xxxxxxxxxxxxxx>
wrote, quoted or indirectly quoted someone who said :
I've given up on it and started usingThey do quite different things. Gzip compresses an entire file. Jar
gzip. Its about a bazillion times
faster, going from minutes to seconds
for some our large code generated jars.
prepares many small member entries each separately compressed.
Are you referring to some alternate Jar utility?
Also check out pack200 which compresses an entire uncompressed archive
to get super compression.
--
Canadian Mind Products, Roedy Green.
http://mindprod.com Java custom programming, consulting and coaching.
I'm talking about the plain old jar utility. I'm creating jar files to
use in a
classpath. I'm not interested that they're executable.
If you add a manifest, gzip makes jar files which java happily accepts.
The jar file creation time is what I find crazy with the jar util that
ships java.
I'm pretty sure that the reason jikes is faster is that it doesn't use
java's jar support but embeds native zip.
--
Thanks in Advance...
IchBin, Pocono Lake, Pa, USA http://weconsultants.servebeer.com/JHackerAppManager
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