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For sale: Parelli Western saddle "Natural Performer"

Posted by Mike Haller on Wednesday, December 21. 2011 at 15:10 in Private

------------------------------------
Update April 2012: The saddle has been sold!
------------------------------------


My girlfriend is selling her loved Parelli Natural Performer Western saddle. There's still 8 years of manufacturer's guarantee, the saddle is used, only 2 years old and in excellent shape (as you can see on the pictures).

Parelli Natural Performer

Parelli Natural Performer (Side)

Parelli Natural Performer (Front)

Manufacturer:Pullmann
Brand:Parelli
Type:Western
Model:Natural Performer with Horn
Colour:Dark Brown
Tree:Equiflex
Size:Normal (not superwide)
Weight:14kg
Seat:Medium - Western Seat Size #3 (16.5") for riders 163cm-178cm, 61kg-75kg
Location:South Germany
Price:2.200,00 EUR
Parelli Western Saddle Natural Performer For Sale



If you want to know more about Parelli saddles in general, have a look at Parelli's Saddle Shop. They're explaining all the features and properties of the saddles very nicely.

Photos of Horses

Posted by Mike Haller on Monday, August 29. 2011 at 14:27
Recently (in the last few months), i've been taking a lot of photos of horses at various stallions and in various situations.
A few selected ones are available at my Flickr page. There's a shortcut URL www.tannesch.de

Flickr also provides a slideshow of the horse pictures

My Horse Pictures at Flickr

Booting a JVM

Posted by Mike Haller on Tuesday, March 1. 2011 at 23:49 in Java
I'm right in the middle of implementing an interpreter for JVM bytecode. Today was the first time the system printed out the magic "Hello World!" message.

The interpreted boot time for running on a JDK 1.6 host (i'm reusing their classes) is 4667ms. It takes 10ms to execute System.out.printlnt("Hello World!");.

Starting up the Virtual Machine and executing any class is pretty easy:
final VirtualMachine vm = new VirtualMachine();

final Classpath classpath = new Classpath();
classpath.addLoader(new HostVMResourceLoader()); // Re-uses JDK classes
classpath.addFolder("C:/Example/bin"); // The HelloWorld project
vm.setClasspath(classpath);

vm.start();

vm.execute("org/example/HelloWorld");


The output can be seen in the screenshot:




The following is an histogram of the bytecodes being executed, only to start up and initialize the JVM.
That includes booting up the System class, character sets, ThreadGroups, Reflection, NIO, and a lot of native methods which had to be replaced.
[01] aconst_null                3398 invocations
[02] iconst_m1                    31 invocations
[03] iconst_0                  33689 invocations
[04] iconst_1                  11795 invocations
[05] iconst_2                    445 invocations
[06] iconst_3                    181 invocations
[07] iconst_4                    121 invocations
[08] iconst_5                     57 invocations
[09] lconst_0                     18 invocations
[0a] lconst_1                      3 invocations
[0b] fconst_0                     19 invocations
[10] bipush                    58215 invocations
[11] sipush                      222 invocations
[12] ldc                        1287 invocations
[13] ldc_w                       494 invocations
[14] ldc2_w                       15 invocations
[15] iload                    362633 invocations
[16] lload                         5 invocations
[19] aload                     81878 invocations
[1a] iload_0                  100335 invocations
[1b] iload_1                  236106 invocations
[1c] iload_2                    1208 invocations
[1d] iload_3                    1383 invocations
[1e] lload_0                       3 invocations
[1f] lload_1                       4 invocations
[20] lload_2                       6 invocations
[22] fload_0                      15 invocations
[24] fload_2                      52 invocations
[25] fload_3                      24 invocations
[26] dload_0                       1 invocations
[2a] aload_0                  306476 invocations
[2b] aload_1                   43405 invocations
[2c] aload_2                   25744 invocations
[2d] aload_3                   83195 invocations
[32] aaload                      794 invocations
[33] baload                        6 invocations
[34] caload                    78421 invocations
[36] istore                   161005 invocations
[37] lstore                        2 invocations
[3a] astore                    26685 invocations
[3b] istore_0                      2 invocations
[3c] istore_1                    907 invocations
[3d] istore_2                    121 invocations
[3e] istore_3                    185 invocations
[3f] lstore_0                      1 invocations
[40] lstore_1                      2 invocations
[41] lstore_2                      3 invocations
[4b] astore_0                     35 invocations
[4c] astore_1                    742 invocations
[4d] astore_2                   2411 invocations
[4e] astore_3                  19006 invocations
[4f] iastore                      20 invocations
[53] aastore                    1654 invocations
[54] bastore                      19 invocations
[55] castore                     265 invocations
[57] pop                         808 invocations
[58] pop2                          4 invocations
[59] dup                        4418 invocations
[5a] dup_x1                        4 invocations
[5c] dup2                          1 invocations
[60] iadd                      86425 invocations
[61] ladd                          1 invocations
[64] isub                      61816 invocations
[68] imul                        814 invocations
[6a] fmul                         11 invocations
[70] irem                        135 invocations
[78] ishl                          8 invocations
[7a] ishr                          9 invocations
[7c] iushr                         8 invocations
[7e] iand                        163 invocations
[7f] land                          1 invocations
[80] ior                       25086 invocations
[81] lor                           1 invocations
[82] ixor                          8 invocations
[84] iinc                      29597 invocations
[85] i2l                           1 invocations
[86] i2f                          17 invocations
[8b] f2i                          11 invocations
[91] i2b                          13 invocations
[92] i2c                       25083 invocations
[94] lcmp                         13 invocations
[95] fcmpl                        19 invocations
[96] fcmpg                        19 invocations
[99] ifeq                      25358 invocations
[9a] ifne                      42109 invocations
[9b] iflt                     102593 invocations
[9c] ifge                      12405 invocations
[9d] ifgt                         27 invocations
[9e] ifle                       6280 invocations
[9f] if_icmpeq                 51280 invocations
[a0] if_icmpne                   813 invocations
[a1] if_icmplt                 77656 invocations
[a2] if_icmpge                 52068 invocations
[a3] if_icmpgt                    73 invocations
[a4] if_icmple                    52 invocations
[a5] if_acmpeq                  1612 invocations
[a6] if_acmpne                  2072 invocations
[a7] goto                      66816 invocations
[a8] jsr                           1 invocations
[a9] ret                           1 invocations
[ab] lookupswitch                  1 invocations
[ac] ireturn                  164404 invocations
[ad] lreturn                       6 invocations
[b0] areturn                   14314 invocations
[b1] return                     6938 invocations
[b2] getstatic                 39043 invocations
[b3] putstatic                   201 invocations
[b4] getfield                 310885 invocations
[b5] putfield                  15212 invocations
[b6] invokevirtual            102940 invocations
[b7] invokespecial              3603 invocations
[b8] invokestatic              65929 invocations
[b9] invokeinterface           13227 invocations
[bb] new                         950 invocations
[bc] newarray                     40 invocations
[bd] anewarray                   477 invocations
[be] arraylength                 764 invocations
[c0] checkcast                 23360 invocations
[c1] instanceof                   55 invocations
[c2] monitorenter                151 invocations
[c3] monitorexit                 151 invocations
[c6] ifnull                    15595 invocations
[c7] ifnonnull                 19950 invocations

Total: 3118655



Three million bytecode instructions executed to get a little message on the screen.

Spatial search with Lucene

Posted by Mike Haller on Saturday, October 16. 2010 at 21:52 in Java
At the Hadoop Hackathon this weekend at Sybit, we've worked on a getting tiled images into HDFS and HBase. A side-story was how to search for these tiles based on GPS coordinates. I took the task to see how you can perform queries based on spatial coordinates. That is, searching for locations which are within a specified radius from an origin:


Business rules tooling webinar

Posted by Mike Haller on Wednesday, October 6. 2010 at 18:43 in Business Rules
My boss Markus Schärtel (@masch70) and Forrester's principal analyst John Rymer (@johnrrymer) are going to hold a Webinar about business rules tools. They're going to explain the impact of such tooling on development processes and on the processes of the business side.

If you are an interested IT or business leader, feel free to join.

P.S.: i think they're going to show some new features of Visual Rules 5, too.

About

My name is Mike Haller and I'm a software developer and architect at Bosch Software Innovations in Germany. I love programming, playing games and reading books. I like good food, making photos and learning and mentoring about the craftsmanship of commercial software development. Stack Overflow profile for mhaller

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