Did you try the same test on a regular JDK platform? This is likely due
to changes in the class libraries. Such a change might be very
noticeable for a "no-op" test (ie not running any application class) but
may not be so significant for an actual test case.
For example, if you do "java Foo
Changeset: 4d72d0ec83f5
Author:michaelm
Date: 2010-07-30 18:16 +0100
URL: http://hg.openjdk.java.net/jdk7/tl/jdk/rev/4d72d0ec83f5
6510892: com/sun/net/httpserver/bugs/B6361557.java fails
Reviewed-by: chegar
! test/com/sun/net/httpserver/bugs/B6361557.java
Osvaldo Doederlein wrote:
I wonder if these numbers have some variation per platform?
Yes, there are some platform-dependent classes and so some loaded
classes are different on different platform.
For me (on
Windows; 32-bit JDKs), the results of this test (java -verbose:class |
grep Loaded |
Hello,
I have performance question in sorting.
In an implementation of Dual-Pivot Quicksort 5 elements
a[e1], a[e2], a[e3], a[e4], a[e5]
where e1 = len/6, e2 = len/3, e3 = len/2, e4 = len*2/3, e5 = len*5/6,
are sorted and then elements a[e2], a[e4] are taken as pivots.
but if I take a[e1] and
I wonder if these numbers have some variation per platform? For me (on
Windows; 32-bit JDKs), the results of this test (java -verbose:class |
grep Loaded | wc -l) are:
1.5.0_22: 239
1.6.0_21: 274
1.7.0-ea-b103: 403
The diff from 1.5 to 1.6 is not bad, but JDK7 seems right now to be a
heavy regres
Yongqiang Yang wrote:
hi,
I just type command "java" under openjdk1.6, then the jvm will
load 308 classes, including
java/launcher/LauncherHelp,
java/util/ResourceBundle,
java/util/Currency,
java/util/Locale,
java/net/URL
David Holmes wrote:
Hi,
Try comparing the list of classes that gets loaded. This is a library
issue not a VM issue (so I bcc'ed hotspot-dev). The folks on
core-libs-dev (cc'ed) will have a better idea on the startup process
for the class libraries.
David Holmes
As David suggests, then runni
Hi,
Try comparing the list of classes that gets loaded. This is a library
issue not a VM issue (so I bcc'ed hotspot-dev). The folks on
core-libs-dev (cc'ed) will have a better idea on the startup process for
the class libraries.
David Holmes
Yongqiang Yang said the following on 07/30/10 18:
Changeset: 4cca8d7ce6c1
Author:lana
Date: 2010-06-21 22:09 -0700
URL: http://hg.openjdk.java.net/jdk7/tl/langtools/rev/4cca8d7ce6c1
Merge
Changeset: d1d7595fa824
Author:lana
Date: 2010-06-29 22:43 -0700
URL: http://hg.openjdk.java.net/jdk7/tl/langtools/rev/d1d7595fa
Changeset: 4d55419ce99e
Author:andrew
Date: 2010-06-08 17:52 +0100
URL: http://hg.openjdk.java.net/jdk7/tl/jdk/rev/4d55419ce99e
6959123: Remove use of obsolete png_check_sig function in splashscreen_png.c
Summary: Avoid use of deprecated libpng macro (removed in some 1.4.x releases)
Changeset: db63f482182d
Author:lana
Date: 2010-06-21 22:07 -0700
URL: http://hg.openjdk.java.net/jdk7/tl/jaxws/rev/db63f482182d
Merge
Changeset: bd26d0ce0c3c
Author:lana
Date: 2010-06-29 22:31 -0700
URL: http://hg.openjdk.java.net/jdk7/tl/jaxws/rev/bd26d0ce0c3c
Mer
Changeset: 478835e100cd
Author:lana
Date: 2010-06-21 22:07 -0700
URL: http://hg.openjdk.java.net/jdk7/tl/jaxp/rev/478835e100cd
Merge
Changeset: d524be5ef62e
Author:lana
Date: 2010-06-29 22:31 -0700
URL: http://hg.openjdk.java.net/jdk7/tl/jaxp/rev/d524be5ef62e
Merge
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