4:31 PM - We'll never know
Now we'll never know about the WMD's!
My image code is slower now and i made this worse too. ugh.
ab -n 100 -c 10 "http://www.justjournal.com/users/laffer1"
This is ApacheBench, Version 1.3d <$Revision: 1.73 $> apache-1.3
Copyright (c) 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Copyright (c) 1998-2002 The Apache Software Foundation, http://www.apache.org/
Benchmarking www.justjournal.com (be patient).....done
Server Software:
Server Hostname: www.justjournal.com
Server Port: 80
Document Path: /users/laffer1
Document Length: 41886 bytes
Concurrency Level: 10
Time taken for tests: 43.138 seconds
Complete requests: 100
Failed requests: 0
Broken pipe errors: 0
Total transferred: 4224400 bytes
HTML transferred: 4188600 bytes
Requests per second: 2.32 [#/sec] (mean)
Time per request: 4313.80 [ms] (mean)
Time per request: 431.38 [ms] (mean, across all concurrent requests)
Transfer rate: 97.93 [Kbytes/sec] received
Connnection Times (ms)
min mean[+/-sd] median max
Connect: 0 0 0.0 0 0
Processing: 1575 4121 1870.9 3585 9645
Waiting: 1575 4120 1870.9 3585 9645
Total: 1575 4121 1870.9 3585 9645
Percentage of the requests served within a certain time (ms)
50% 3585
66% 4344
75% 4913
80% 5700
90% 6763
95% 8819
98% 9234
99% 9645
100% 9645 (last request)
I just ran apache bench on this thing...
70-91-226-205-busname-michigan:/Users/laffer1% ab -n 100 -c 2 -k http://www.justjournal.com/users/laffer1
This is ApacheBench, Version 1.3d <$Revision: 1.73 $> apache-1.3
Copyright (c) 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Copyright (c) 1998-2002 The Apache Software Foundation, http://www.apache.org/
Benchmarking www.justjournal.com (be patient).....done
Server Software:
Server Hostname: www.justjournal.com
Server Port: 80
Document Path: /users/laffer1
Document Length: 38393 bytes
Concurrency Level: 2
Time taken for tests: 33.879 seconds
Complete requests: 100
Failed requests: 0
Broken pipe errors: 0
Keep-Alive requests: 100
Total transferred: 3880102 bytes
HTML transferred: 3839300 bytes
Requests per second: 2.95 [#/sec] (mean)
Time per request: 677.58 [ms] (mean)
Time per request: 338.79 [ms] (mean, across all concurrent requests)
Transfer rate: 114.53 [Kbytes/sec] received
Connnection Times (ms)
min mean[+/-sd] median max
Connect: 0 29 293.0 0 2931
Processing: 442 644 73.4 630 828
Waiting: 442 644 73.4 630 828
Total: 442 674 305.3 630 3608
Percentage of the requests served within a certain time (ms)
50% 630
66% 677
75% 686
80% 692
90% 731
95% 808
98% 828
99% 3608
100% 3608 (last request)
70-91-226-205-busname-michigan:/Users/laffer1% ab -n 100 -c 2 http://www.justjournal.com/users/laffer1
This is ApacheBench, Version 1.3d <$Revision: 1.73 $> apache-1.3
Copyright (c) 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Copyright (c) 1998-2002 The Apache Software Foundation, http://www.apache.org/
Benchmarking www.justjournal.com (be patient).....done
Server Software:
Server Hostname: www.justjournal.com
Server Port: 80
Document Path: /users/laffer1
Document Length: 38393 bytes
Concurrency Level: 2
Time taken for tests: 36.213 seconds
Complete requests: 100
Failed requests: 0
Broken pipe errors: 0
Total transferred: 3876500 bytes
HTML transferred: 3839300 bytes
Requests per second: 2.76 [#/sec] (mean)
Time per request: 724.26 [ms] (mean)
Time per request: 362.13 [ms] (mean, across all concurrent requests)
Transfer rate: 107.05 [Kbytes/sec] received
Connnection Times (ms)
min mean[+/-sd] median max
Connect: 0 0 0.0 0 1
Processing: 660 724 34.2 733 796
Waiting: 659 724 34.2 733 795
Total: 660 724 34.1 733 796
ERROR: The median and mean for the initial connection time are more than twice the standard
deviation apart. These results are NOT reliable.
Percentage of the requests served within a certain time (ms)
50% 733
66% 744
75% 752
80% 756
90% 765
95% 777
98% 782
99% 796
100% 796 (last request)
Here's another version of the servlet. This time it uses prepare statements and avoids the beta CachedRowSet code.
/* Copyright (c) 2006-2007, Lucas Holt All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. Neither the name of the Just Journal nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ package com.justjournal; import com.justjournal.utility.ServletUtilities; import org.apache.log4j.Category; import javax.naming.Context; import javax.naming.InitialContext; import javax.servlet.ServletOutputStream; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import javax.sql.DataSource; import java.io.BufferedInputStream; import java.io.ByteArrayOutputStream; import java.sql.Connection; import java.sql.PreparedStatement; import java.sql.ResultSet; /** * Image viewer servlet to display userpics and other images * from the database. * * User: laffer1 * Date: Nov 22, 2005 * Time: 9:31:28 PM * * @version $Id: Image.java,v 1.9 2007/06/27 20:20:24 laffer1 Exp $ */ public final class Image extends HttpServlet { private static final Category log = Category.getInstance(Image.class.getName()); // processes get requests protected final void doGet(HttpServletRequest request, HttpServletResponse response) throws java.io.IOException { ByteArrayOutputStream baos = new ByteArrayOutputStream(); Integer id; Context ctx; DataSource ds = null; Connection conn; PreparedStatement stmt; try { id = new Integer(request.getParameter("id")); } catch (Exception e) { response.sendError(HttpServletResponse.SC_NOT_FOUND); return; } if (id.intValue() < 1) { response.sendError(HttpServletResponse.SC_NOT_FOUND); return; } try { response.reset(); response.setHeader("Expires", ServletUtilities.createExpiresHeader(180)); try { ctx = new InitialContext(); ds = (DataSource) ctx.lookup("java:comp/env/jdbc/jjDB"); } catch (Exception e) { log.debug(e.getMessage()); response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR); } conn = ds.getConnection(); stmt = conn.prepareStatement("call getimage(?)"); stmt.setInt(1, id); ResultSet rs = stmt.executeQuery(); if (rs.next()) { response.setContentType(rs.getString("mimetype").trim()); BufferedInputStream img = new BufferedInputStream(rs.getBinaryStream("image")); byte[] buf = new byte[4 * 1024]; // 4k buffer int len; while ((len = img.read(buf, 0, buf.length)) != -1) baos.write(buf, 0, len); response.setContentLength(baos.size()); final ServletOutputStream outstream = response.getOutputStream(); baos.writeTo(outstream); outstream.flush(); outstream.close(); } else response.sendError(HttpServletResponse.SC_NOT_FOUND); rs.close(); stmt.close(); conn.close(); } catch (Exception e) { log.debug("Could not load image: " + e.toString()); response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR); } } }
I've been having weird problems with Safari and just journal. Most noticeably, the image servlets seem to be randomly failing to load. What I mean by an image servlet is a servlet that pulls an image (JPG, PNG or GIF) from a MySQL blob field and then spits it out to the client. Here's the source of my servlet. This version is not in production yet, but it is similar to the one in production.
The weird byte array plus buffered stream thing is to allow me to send the size of the file. It seemed to fix some issues with IE and firefox, but it did slow down the servlet. I'm looking for two outcomes: fix safari and speed this up. Safari is more important. The expires header is new code.
/* Copyright (c) 2006, Lucas Holt All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. Neither the name of the Just Journal nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ package com.justjournal; import com.justjournal.db.SQLHelper; import com.justjournal.utility.ServletUtilities; import org.apache.log4j.Category; import sun.jdbc.rowset.CachedRowSet; import javax.servlet.ServletOutputStream; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import java.io.BufferedInputStream; import java.io.ByteArrayOutputStream; /** * Image viewer servlet to display userpics and other images * from the database. * * User: laffer1 * Date: Nov 22, 2005 * Time: 9:31:28 PM * * @version $Id: Image.java,v 1.9 2007/06/27 20:20:24 laffer1 Exp $ */ public final class Image extends HttpServlet { private static final Category log = Category.getInstance(Image.class.getName()); // processes get requests protected final void doGet(HttpServletRequest request, HttpServletResponse response) throws java.io.IOException { ByteArrayOutputStream baos = new ByteArrayOutputStream(); Integer id; try { id = new Integer(request.getParameter("id")); } catch (Exception e) { response.sendError(HttpServletResponse.SC_NOT_FOUND); return; } if (id.intValue() < 1) { response.sendError(HttpServletResponse.SC_NOT_FOUND); return; } try { response.reset(); response.setHeader("Expires", ServletUtilities.createExpiresHeader(180)); CachedRowSet rs = SQLHelper.executeResultSet("call getimage(" + id + ");"); if (rs.next()) { response.setContentType(rs.getString("mimetype").trim()); BufferedInputStream img = new BufferedInputStream(rs.getBinaryStream("image")); byte[] buf = new byte[4 * 1024]; // 4k buffer int len; while ((len = img.read(buf, 0, buf.length)) != -1) baos.write(buf, 0, len); response.setContentLength(baos.size()); final ServletOutputStream outstream = response.getOutputStream(); baos.writeTo(outstream); outstream.flush(); outstream.close(); } else response.sendError(HttpServletResponse.SC_NOT_FOUND); rs.close(); } catch (Exception e) { log.debug("Could not load image: " + e.toString()); response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR); } } }
I ran into Kirk today. He got a bunch of new intel iMacs in. He said he'd let me know when 10.5 comes in. That's kewl. (ADC)
I just finished my English 328 portfolio stuff. I think I've got everything up. :)
Dell decided to join 1999 with the release of laptops in 8 colors. You may remember Apple, Inc. released the original iBook in two colors in 1999 (or 2000?) and the 5 flavor iMacs a little after that. Dell now wants to be "hip" with there tired OLD marketing plan. How nice for them. Worst of all it appears the inside is still the same ugly gray color. Some of those colors look terrible with that gray. UGLY.
The new version of Safari (mac) has some pros and cons. Spell check seems to work correctly in input text boxes as well as textarea now. Spell check is much faster. The find dialog was moved to the top of the browser window. I got used to Firefox so that is odd to me. Some elements are a little bigger. The positioning of several items is wrong as a result. Safari 2, Firefox (mac and win), IE 7 all position the same way for the most part. I'm finding that I have to revisit sites and change floats and sizes of things to make it work in safari 3. The pixel size versus the text size is wrong. What is really weird is that i usually use pixels for font sizes now. They should match even if the size is bigger.
I just published some changes to my Jewel website.
http://www.foolishgames.com/jewel/index.php
I even wrote a new RSS script in PHP.
feed://www.foolishgames.com/jewel/news/feed.php
At times, I totally see the upside of PHP. I wrote that script very quickly compared to a Java solution. I must be tired; I praised PHP.
location: Home