YIN Information

Linode VPS Fremont Upgrades - David Yin's Blog

2013-05-23T07:30:13Z

It is great news, when I received the email from Linode. They start upgrades in Fremont.
I have a VPS in Fremont Linode. It is an old CPU, L5630. UnixBench score is 1186 only. The new CPU with E5-2670 has over 2000 Unixbench score.
It is more powerful.

When the upgrade done at Linode side, I will see the upgrade button on dashboard.

https://blog.linode.com/2013/05/17/fremont-upgrades/

This is the email I got.

We have scheduled a maintenance window for the physical server your Linode is hosted on:

Friday, June 7, 2013 between 3:00 AM and 11:00 AM UTC
(Thursday, June 6, 2013 between 8:00 PM and 4:00 AM PDT)

Downtime from this maintenance is expected to be less than 120 minutes, however please note that the entire maintenance window may be used if required. Your Linode will be gracefully powered down and rebooted during the maintenance. Services not configured to start on a reboot will need to be manually started.

User Register Error on Joomla 3 - David Yin's Blog

2013-05-22T00:15:09Z

If you search by error code: PHP Fatal error: Call to a member function where() on a non-object in /home/username/sitename/joomla/components/com_users/models/registration.php on line 521 and landed here, you are very closed to the solutions.

When a new user tried to register, he may received the 500 error. The real error information is behide it. So go to check the error.log file.

Then you will see the error infomation:

PHP Fatal error: Call to a member function where() on a non-object in /home/username/sitename/joomla/components/com_users/models/registration.php on line 521

It is a bug of Joomla 3.1.1. Two bracket typos.

To fix it, just modify the file: joomla/components/com_users/models/registration.php

Go to line 109, change the bracket as below.

$query->select($db->quoteName( array('name', 'email', 'sendEmail', 'id')))
->from($db->quoteName('#__users'))
->where( $db->quoteName('sendEmail') . ' = ' . 1);

Go to line 521, change the bracket as below/

$query->select($db->quoteName(array('name', 'email', 'sendEmail')))
->from($db->quoteName('#__users'))
->where($db->quoteName('sendEmail') . ' = ' . 1);

That is all.

Gmail Settings for Joomla 3.1.1 - David Yin's Blog

2013-05-21T22:11:14Z

I installed Joomla 3.1.1 on a VPS. When I tried to use mass email, no matter what kind of mailer setting I put, I did not receive any email from it.

At last I tried SMTP settings with Gmail account.

1) Choose Mailer: SMTP
2) From email: youremail@gmail.com
3) From Name: Your Name
4) Sendmail Path: Just leave it as default
5) SMTP Authentication: Choose Yes
6) SMTP Security: SSL
7) SMTP Port: 465
8) SMTP Username: youremail@gmail.com
9) SMTP Password: the password of the email above
10) SMTP Host: smtp.gmail.com

Look at the red arrow, I pointed to the SMTP Host. It should be smtp.gmail.com
But, I am still getting error. Later I found, I put the host name followed by an extra blank space. The system supposed to remove these kind of spaces. It works when I correct the host name.

Upgrade Calibre to 0.9.31 - David Yin's Blog

2013-05-19T07:58:21Z

I do like Calibre. It is must-have for any one who has a Kindle Touch. I use Calibre almost every week to sychonize my books between PC and Kindle Touch. It is great to convert the format of books and keep all books in order.

New features of 0.9.31

Book list: Highlight the current cell in the book list, particularly convenient for usage with the keyboard.
Allow creation of advanced rules for column icons.
Driver for the limited edition SONY PRS-T2N
MOBI Input: Add support for MOBI/KF8 files generated with the to be released kindlegen 2.9.

New features of 0.9.30

Kobo driver: Add support for showing 'Archived' books on the device. Also up the supported firmware version to 2.5.3.
Driver for Blackberry 9790
Add a tweak to turn off the highlighting of the book count when using a virtual library (Preferences->Tweaks)
Add a button to clear the viewer search history in the viewer Preferences, under Miscellaneous
Add keyboard shortcuts to clear the virtual Library and the additional restriction (Ctrl+Esc and Alt+Esc). Also use Shift+Esc to bring keyboard focus back tot he book list. Can be changed under Preferences->Keyboard
Docx metadata: Read the language of the file, if present

Here is the link to download the 64bit Windows version.

The Connoisseur's Guide to Fish & Seafood - David Yin's Blog

2013-05-15T21:35:51Z

Yeah, I got another book at Sears.

It is all about fish and seafood.

The sea is a treasure chest filed with the planet's most delicious, nutritious, and healthful foods. For those eager to make the most of this bounty, this Connoisseur's Guide not only provides essential advice on how to buy and store seafood, it offers easy-to-follow cooking techniques and delectable recipes, from simple soups, pâtes, and mousses to light lunches, easy family suppers, and sophisticated party fare. And these sumptuous dishes can be enjoyed guiltlessly, since the author has thoughtfully supplied a comprehensive guide to the world's sustainable fish and seafood.

I would like to read it and go through the fish and seafood which are easily accessed on local market.

Backupify -TweetBackup service retired - David Yin's Blog

2013-05-15T18:59:57Z

I am using Backupify to backup my tweets. Now it announced that this service is discontinued.

Your TweetBackup account will continue to back up for the next 30 days, until June 13th. Access to the service, and your data, will be disabled on June 28th. You will have the full 45 days to export any data. Please visit our Tweetbackup service shutdown FAQs answers to common questions, or you can also contact support directly with your questions.

Actually, when Twitter provide Twiter Archive service, it is not necessary to use the third-party backup service.

It is easy to do it.

Sign in Twitter.com
Click Settings
Under Account tab, scroll to the bottom, click the button beside the Your Twitter archive.
Then you will receive an email with the archive download link.

The email you will receive looks like below.

The archive file is a zip file. Unzip it with your compress tool. I use 7zip.

So, double click index.html to open the archive. It is easy to navigate from month to month.

Upgrade Calibre to 0.9.30 - David Yin's Blog

2013-05-10T23:43:11Z

So fast,it is 0.9.30
New features of Calibre 0.9.30

Kobo driver: Add support for showing 'Archived' books on the device. Also up the supported firmware version to 2.5.3.
Driver for Blackberry 9790
Add a tweak to turn off the highlighting of the book count when using a virtual library (Preferences->Tweaks)
Add a button to clear the viewer search history in the viewer Preferences, under Miscellaneous
Add keyboard shortcuts to clear the virtual Library and the additional restriction (Ctrl+Esc and Alt+Esc). Also use Shift+Esc to bring keyboard focus back tot he book list. Can be changed under Preferences->Keyboard
Docx metadata: Read the language of the file, if present

The Connoisseur's Guide to Meat - David Yin's Blog

2013-05-10T00:00:21Z

Last week, I bought a book at Sears store. The name as title is everything you want to know about meat.

It covers Beef, Pork, and Lamb. More than 250 pages. In my family, we all love meat.

I just read very beginning of this book. It shows me that what is Chuck, what is brisket, what is rib, etc. I can learn a lot from this book.

The amazon book description said:

From sumptuous steaks and prime cuts to braises and savory stews, this guide is a carnivore's delight. Gourmets will appreciate the book's accurate and comprehensive information about when, where, and how to buy meat; how to tell if it's fresh, and how to prepare, cook, carve, and serve meat to best advantage. From store to kitchen to table, this compendium fills in all the blanks about how to obtain fresh meat from humane and sustainable sources, identify cuts, and fillet and carve them, while offering up a rich trove of reliable recipes.

A visual directory that showcases each cut and comments on flavor, preparation, and cost rounds out this indispensable culinary reference

Upgrade Calibre to 0.9.29 from 0.9.24 - David Yin's Blog

2013-05-09T00:45:12Z

There are so many updates I missed. Now it is 0.9.29. My previous upgrade is to 0.9.24

New features of 0.9.29

Bulk metadata download: Allow reviewing of the downloaded metadata before it is applied
FB2 Output: Write ISBN, pubdate, tags and publisher metadata when creating fb2 files

New Features of 0.9.28

Virtual Libraries: Easily partition your large calibre library into smaller 'virtual' libraries
A virtual library is a way to tell calibre to open only a subset of a normal library. For example, you might want to only work with books by a certain author, or books having only a certain tag. To use this feature, click the button labeled 'Virtual Library' to the left of the search bar. For details, see http://manual.calibre-ebook.com/virtual_libraries.html This feature used to be called 'Search restriction', the new virtual libraries are easier to use, but otherwise fulfil the same function.
Book details panel: Allow copying of links in the book details panel by right clicking on them.
Kobo driver: Add support for the new Kobo Aura HD and firmware version 2.5.0
Metadata download: When showing downloaded covers, allow right clicking on a cover to view a full size version.
Driver for Easy player cyber book e touch and Droid 4
Edit ToC: Allow the size of the panels in the location view to be adjusted
When copying to a library by path, make it more efficient to choose between moving and copying
When checking if a zip/rar file is a comic or contains a single ebook to be auto-extracted, ignore thumbs.db files inside the archive

New Features of 0.9.27

Metadata download: Add two new sources for covers: Google Image Search and bigbooksearch.com.
To enable them go to Preferences->Metadata download and enable the 'Google Image' and 'Big Book Search' sources. Google Images is useful for finding larger covers as well as alternate versions of the cover. Big Book Search searches for alternate covers from amazon.com. It can occasionally find nicer covers than the direct Amazon source. Note that both these sources download multiple covers for a single book. Some of these covers can be wrong (i.e. they may be of a different book or not covers at all, so you should inspect the results and manually pick the best match). When bulk downloading, these sources are only used if the other sources find no covers.
Content server: Allow specifying a restriction to use for the server when embedding it as a WSGI app.
Get Books: Add a plugin for the Koobe Polish book store
calibredb add_format: Add an option to not replace existing formats. Also pep8 compliance.
Allow restoring of the ORIGINAL_XXX format by right-clicking it in the book details panel

New Features of 0.9.26

PDF Output: Allow using templates to create arbitrary headers and footers. Look under PDF Output in the conversion dialog for this feature.
ToC Editor: Allow generating the ToC directly from individual files inside the ebook. Useful for EPUBs that have individual chapters in single files.
ToC Editor: Add buttons to indent/unindent the current entry
ToC Editor: Right-click menu to perform various useful actions on entries in the ToC
Column icons: Allow use of wide images as column icons
Add USB ids for the Palm Pre2 and Samsung Galaxy phone to the device drivers

New Features of 0.9.25

Automatic adding: When checking for duplicates is enabled, use the same duplicates found dialog as is used during manual adding.
ToC Editor: Allow searching to find a location quickly when browsing through the book to select a location for a ToC item
ToC Editor: Add a button to quickly flatten the entire table of contents
Conversion: When converting a single book to EPUB or AZW3, add an option to automatically launch the Table of Contents editor after the conversion completes. Found under the Table of Contents section of the conversion dialog.

Three UnixBench testing results including Linode VPS - David Yin's Blog

2013-05-07T03:42:37Z

UnixBench is a testing tool. I run it on two Linode VPS. One is located at Newark, NJ, with new hardware, including CPU E5-2670. The testing results are shown as below:

[root@servername UnixBench]# ./Run
make all
make[1]: Entering directory `/root/UnixBench'
Checking distribution of files
./pgms  exists
./src  exists
./testdir  exists
./tmp  exists
./results  exists
make[1]: Leaving directory `/root/UnixBench'
sh: 3dinfo: command not found

   #    #  #    #  #  #    #          #####   ######  #    #   ####   #    #
   #    #  ##   #  #   #  #           #    #  #       ##   #  #    #  #    #
   #    #  # #  #  #    ##            #####   #####   # #  #  #       ######
   #    #  #  # #  #    ##            #    #  #       #  # #  #       #    #
   #    #  #   ##  #   #  #           #    #  #       #   ##  #    #  #    #
    ####   #    #  #  #    #          #####   ######  #    #   ####   #    #

   Version 5.1.3                      Based on the Byte Magazine Unix Benchmark

   Multi-CPU version                  Version 5 revisions by Ian Smith,
                                      Sunnyvale, CA, USA
   January 13, 2011                   johantheghost at yahoo period com


1 x Dhrystone 2 using register variables  1 2 3 4 5 6 7 8 9 10

1 x Double-Precision Whetstone  1 2 3 4 5 6 7 8 9 10

1 x Execl Throughput  1 2 3

1 x File Copy 1024 bufsize 2000 maxblocks  1 2 3

1 x File Copy 256 bufsize 500 maxblocks  1 2 3

1 x File Copy 4096 bufsize 8000 maxblocks  1 2 3

1 x Pipe Throughput  1 2 3 4 5 6 7 8 9 10

1 x Pipe-based Context Switching  1 2 3 4 5 6 7 8 9 10

1 x Process Creation  1 2 3

1 x System Call Overhead  1 2 3 4 5 6 7 8 9 10

1 x Shell Scripts (1 concurrent)  1 2 3

1 x Shell Scripts (8 concurrent)  1 2 3

8 x Dhrystone 2 using register variables  1 2 3 4 5 6 7 8 9 10

8 x Double-Precision Whetstone  1 2 3 4 5 6 7 8 9 10

8 x Execl Throughput  1 2 3

8 x File Copy 1024 bufsize 2000 maxblocks  1 2 3

8 x File Copy 256 bufsize 500 maxblocks  1 2 3

8 x File Copy 4096 bufsize 8000 maxblocks  1 2 3

8 x Pipe Throughput  1 2 3 4 5 6 7 8 9 10

8 x Pipe-based Context Switching  1 2 3 4 5 6 7 8 9 10

8 x Process Creation  1 2 3

8 x System Call Overhead  1 2 3 4 5 6 7 8 9 10

8 x Shell Scripts (1 concurrent)  1 2 3

8 x Shell Scripts (8 concurrent)  1 2 3

========================================================================
   BYTE UNIX Benchmarks (Version 5.1.3)

   System: worldpeaceever: GNU/Linux
   OS: GNU/Linux -- 3.8.4-linode50 -- #1 SMP Mon Mar 25 15:50:29 EDT 2013
   Machine: i686 (i386)
   Language: en_US.utf8 (charmap="UTF-8", collate="UTF-8")
   CPU 0: Intel(R) Xeon(R) CPU E5-2670 0 @ 2.60GHz (5200.1 bogomips)
          Hyper-Threading, MMX, Physical Address Ext
   CPU 1: Intel(R) Xeon(R) CPU E5-2670 0 @ 2.60GHz (5200.1 bogomips)
          Hyper-Threading, MMX, Physical Address Ext
   CPU 2: Intel(R) Xeon(R) CPU E5-2670 0 @ 2.60GHz (5200.1 bogomips)
          Hyper-Threading, MMX, Physical Address Ext
   CPU 3: Intel(R) Xeon(R) CPU E5-2670 0 @ 2.60GHz (5200.1 bogomips)
          Hyper-Threading, MMX, Physical Address Ext
   CPU 4: Intel(R) Xeon(R) CPU E5-2670 0 @ 2.60GHz (5200.1 bogomips)
          Hyper-Threading, MMX, Physical Address Ext
   CPU 5: Intel(R) Xeon(R) CPU E5-2670 0 @ 2.60GHz (5200.1 bogomips)
          Hyper-Threading, MMX, Physical Address Ext
   CPU 6: Intel(R) Xeon(R) CPU E5-2670 0 @ 2.60GHz (5200.1 bogomips)
          Hyper-Threading, MMX, Physical Address Ext
   CPU 7: Intel(R) Xeon(R) CPU E5-2670 0 @ 2.60GHz (5200.1 bogomips)
          Hyper-Threading, MMX, Physical Address Ext
   19:47:03 up 20 days, 18:07,  1 user,  load average: 0.00, 0.01, 0.05; runlevel 3

------------------------------------------------------------------------
Benchmark Run: Mon May 06 2013 19:47:03 - 20:14:59
8 CPUs in system; running 1 parallel copy of tests

Dhrystone 2 using register variables       16030487.1 lps   (10.0 s, 7 samples)
Double-Precision Whetstone                     2371.3 MWIPS (10.2 s, 7 samples)
Execl Throughput                               1370.6 lps   (30.0 s, 2 samples)
File Copy 1024 bufsize 2000 maxblocks        354802.8 KBps  (30.0 s, 2 samples)
File Copy 256 bufsize 500 maxblocks           98594.2 KBps  (30.0 s, 2 samples)
File Copy 4096 bufsize 8000 maxblocks        954149.3 KBps  (30.0 s, 2 samples)
Pipe Throughput                              509976.8 lps   (10.0 s, 7 samples)
Pipe-based Context Switching                  23671.2 lps   (10.0 s, 7 samples)
Process Creation                               2357.2 lps   (30.0 s, 2 samples)
Shell Scripts (1 concurrent)                   2895.0 lpm   (60.0 s, 2 samples)
Shell Scripts (8 concurrent)                   1207.3 lpm   (60.0 s, 2 samples)
System Call Overhead                         402520.6 lps   (10.0 s, 7 samples)

System Benchmarks Index Values               BASELINE       RESULT    INDEX
Dhrystone 2 using register variables         116700.0   16030487.1   1373.6
Double-Precision Whetstone                       55.0       2371.3    431.1
Execl Throughput                                 43.0       1370.6    318.7
File Copy 1024 bufsize 2000 maxblocks          3960.0     354802.8    896.0
File Copy 256 bufsize 500 maxblocks            1655.0      98594.2    595.7
File Copy 4096 bufsize 8000 maxblocks          5800.0     954149.3   1645.1
Pipe Throughput                               12440.0     509976.8    409.9
Pipe-based Context Switching                   4000.0      23671.2     59.2
Process Creation                                126.0       2357.2    187.1
Shell Scripts (1 concurrent)                     42.4       2895.0    682.8
Shell Scripts (8 concurrent)                      6.0       1207.3   2012.2
System Call Overhead                          15000.0     402520.6    268.3
                                                                   ========
System Benchmarks Index Score                                         505.3

------------------------------------------------------------------------
Benchmark Run: Mon May 06 2013 20:14:59 - 20:43:01
8 CPUs in system; running 8 parallel copies of tests

Dhrystone 2 using register variables       84271128.4 lps   (10.0 s, 7 samples)
Double-Precision Whetstone                    16058.7 MWIPS (10.5 s, 7 samples)
Execl Throughput                               7123.1 lps   (29.8 s, 2 samples)
File Copy 1024 bufsize 2000 maxblocks        533181.6 KBps  (30.0 s, 2 samples)
File Copy 256 bufsize 500 maxblocks          138475.7 KBps  (30.0 s, 2 samples)
File Copy 4096 bufsize 8000 maxblocks       1660648.6 KBps  (30.0 s, 2 samples)
Pipe Throughput                             3570580.2 lps   (10.0 s, 7 samples)
Pipe-based Context Switching                 399944.6 lps   (10.0 s, 7 samples)
Process Creation                              13403.1 lps   (30.0 s, 2 samples)
Shell Scripts (1 concurrent)                  12387.6 lpm   (60.0 s, 2 samples)
Shell Scripts (8 concurrent)                   1663.7 lpm   (60.1 s, 2 samples)
System Call Overhead                        2660567.5 lps   (10.0 s, 7 samples)

System Benchmarks Index Values               BASELINE       RESULT    INDEX
Dhrystone 2 using register variables         116700.0   84271128.4   7221.2
Double-Precision Whetstone                       55.0      16058.7   2919.8
Execl Throughput                                 43.0       7123.1   1656.5
File Copy 1024 bufsize 2000 maxblocks          3960.0     533181.6   1346.4
File Copy 256 bufsize 500 maxblocks            1655.0     138475.7    836.7
File Copy 4096 bufsize 8000 maxblocks          5800.0    1660648.6   2863.2
Pipe Throughput                               12440.0    3570580.2   2870.2
Pipe-based Context Switching                   4000.0     399944.6    999.9
Process Creation                                126.0      13403.1   1063.7
Shell Scripts (1 concurrent)                     42.4      12387.6   2921.6
Shell Scripts (8 concurrent)                      6.0       1663.7   2772.8
System Call Overhead                          15000.0    2660567.5   1773.7
                                                                   ========
System Benchmarks Index Score                                        2031.5

The other VPS is at Fremont, CA. The CPU is L5630. The score is 1186, compared with the above 2031. It is much slower.

[root@juntixiao UnixBench]# ./Run
make all
make[1]: Entering directory `/root/UnixBench'
Checking distribution of files
./pgms  exists
./src  exists
./testdir  exists
./tmp  exists
./results  exists
make[1]: Leaving directory `/root/UnixBench'
sh: 3dinfo: command not found

   #    #  #    #  #  #    #          #####   ######  #    #   ####   #    #
   #    #  ##   #  #   #  #           #    #  #       ##   #  #    #  #    #
   #    #  # #  #  #    ##            #####   #####   # #  #  #       ######
   #    #  #  # #  #    ##            #    #  #       #  # #  #       #    #
   #    #  #   ##  #   #  #           #    #  #       #   ##  #    #  #    #
    ####   #    #  #  #    #          #####   ######  #    #   ####   #    #

   Version 5.1.3                      Based on the Byte Magazine Unix Benchmark

   Multi-CPU version                  Version 5 revisions by Ian Smith,
                                      Sunnyvale, CA, USA
   January 13, 2011                   johantheghost at yahoo period com


1 x Dhrystone 2 using register variables  1 2 3 4 5 6 7 8 9 10

1 x Double-Precision Whetstone  1 2 3 4 5 6 7 8 9 10

1 x Execl Throughput  1 2 3

1 x File Copy 1024 bufsize 2000 maxblocks  1 2 3

1 x File Copy 256 bufsize 500 maxblocks  1 2 3

1 x File Copy 4096 bufsize 8000 maxblocks  1 2 3

1 x Pipe Throughput  1 2 3 4 5 6 7 8 9 10

1 x Pipe-based Context Switching  1 2 3 4 5 6 7 8 9 10

1 x Process Creation  1 2 3

1 x System Call Overhead  1 2 3 4 5 6 7 8 9 10

1 x Shell Scripts (1 concurrent)  1 2 3

1 x Shell Scripts (8 concurrent)  1 2 3

8 x Dhrystone 2 using register variables  1 2 3 4 5 6 7 8 9 10

8 x Double-Precision Whetstone  1 2 3 4 5 6 7 8 9 10

8 x Execl Throughput  1 2 3

8 x File Copy 1024 bufsize 2000 maxblocks  1 2 3

8 x File Copy 256 bufsize 500 maxblocks  1 2 3

8 x File Copy 4096 bufsize 8000 maxblocks  1 2 3

8 x Pipe Throughput  1 2 3 4 5 6 7 8 9 10

8 x Pipe-based Context Switching  1 2 3 4 5 6 7 8 9 10

8 x Process Creation  1 2 3

8 x System Call Overhead  1 2 3 4 5 6 7 8 9 10

8 x Shell Scripts (1 concurrent)  1 2 3

8 x Shell Scripts (8 concurrent)  1 2 3

========================================================================
   BYTE UNIX Benchmarks (Version 5.1.3)

   System: juntixiao: GNU/Linux
   OS: GNU/Linux -- 3.8.4-linode50 -- #1 SMP Mon Mar 25 15:50:29 EDT 2013
   Machine: i686 (i386)
   Language: en_US.utf8 (charmap="UTF-8", collate="UTF-8")
   CPU 0: Intel(R) Xeon(R) CPU L5630 @ 2.13GHz (4266.9 bogomips)
          Hyper-Threading, MMX, Physical Address Ext
   CPU 1: Intel(R) Xeon(R) CPU L5630 @ 2.13GHz (4266.9 bogomips)
          Hyper-Threading, MMX, Physical Address Ext
   CPU 2: Intel(R) Xeon(R) CPU L5630 @ 2.13GHz (4266.9 bogomips)
          Hyper-Threading, MMX, Physical Address Ext
   CPU 3: Intel(R) Xeon(R) CPU L5630 @ 2.13GHz (4266.9 bogomips)
          Hyper-Threading, MMX, Physical Address Ext
   CPU 4: Intel(R) Xeon(R) CPU L5630 @ 2.13GHz (4266.9 bogomips)
          Hyper-Threading, MMX, Physical Address Ext
   CPU 5: Intel(R) Xeon(R) CPU L5630 @ 2.13GHz (4266.9 bogomips)
          Hyper-Threading, MMX, Physical Address Ext
   CPU 6: Intel(R) Xeon(R) CPU L5630 @ 2.13GHz (4266.9 bogomips)
          Hyper-Threading, MMX, Physical Address Ext
   CPU 7: Intel(R) Xeon(R) CPU L5630 @ 2.13GHz (4266.9 bogomips)
          Hyper-Threading, MMX, Physical Address Ext
   16:47:25 up 7 days, 15:35,  1 user,  load average: 0.01, 0.04, 0.05; runlevel 3

------------------------------------------------------------------------
Benchmark Run: Mon May 06 2013 16:47:25 - 17:15:21
8 CPUs in system; running 1 parallel copy of tests

Dhrystone 2 using register variables       12666461.0 lps   (10.0 s, 7 samples)
Double-Precision Whetstone                     2097.8 MWIPS (10.3 s, 7 samples)
Execl Throughput                               1241.3 lps   (30.0 s, 2 samples)
File Copy 1024 bufsize 2000 maxblocks        248132.0 KBps  (30.0 s, 2 samples)
File Copy 256 bufsize 500 maxblocks           64817.5 KBps  (30.0 s, 2 samples)
File Copy 4096 bufsize 8000 maxblocks        850189.9 KBps  (30.0 s, 2 samples)
Pipe Throughput                              120057.9 lps   (10.0 s, 7 samples)
Pipe-based Context Switching                  18186.7 lps   (10.0 s, 7 samples)
Process Creation                               2003.6 lps   (30.0 s, 2 samples)
Shell Scripts (1 concurrent)                   2497.7 lpm   (60.0 s, 2 samples)
Shell Scripts (8 concurrent)                    688.7 lpm   (60.0 s, 2 samples)
System Call Overhead                         381542.5 lps   (10.0 s, 7 samples)

System Benchmarks Index Values               BASELINE       RESULT    INDEX
Dhrystone 2 using register variables         116700.0   12666461.0   1085.4
Double-Precision Whetstone                       55.0       2097.8    381.4
Execl Throughput                                 43.0       1241.3    288.7
File Copy 1024 bufsize 2000 maxblocks          3960.0     248132.0    626.6
File Copy 256 bufsize 500 maxblocks            1655.0      64817.5    391.6
File Copy 4096 bufsize 8000 maxblocks          5800.0     850189.9   1465.8
Pipe Throughput                               12440.0     120057.9     96.5
Pipe-based Context Switching                   4000.0      18186.7     45.5
Process Creation                                126.0       2003.6    159.0
Shell Scripts (1 concurrent)                     42.4       2497.7    589.1
Shell Scripts (8 concurrent)                      6.0        688.7   1147.9
System Call Overhead                          15000.0     381542.5    254.4
                                                                   ========
System Benchmarks Index Score                                         362.6

------------------------------------------------------------------------
Benchmark Run: Mon May 06 2013 17:15:21 - 17:43:45
8 CPUs in system; running 8 parallel copies of tests

Dhrystone 2 using register variables       46225008.8 lps   (10.0 s, 7 samples)
Double-Precision Whetstone                    10993.7 MWIPS (10.0 s, 7 samples)
Execl Throughput                               4335.2 lps   (29.9 s, 2 samples)
File Copy 1024 bufsize 2000 maxblocks        466791.8 KBps  (30.0 s, 2 samples)
File Copy 256 bufsize 500 maxblocks           67770.3 KBps  (30.0 s, 2 samples)
File Copy 4096 bufsize 8000 maxblocks       1315026.4 KBps  (30.0 s, 2 samples)
Pipe Throughput                             1870328.4 lps   (10.0 s, 7 samples)
Pipe-based Context Switching                 234389.7 lps   (10.0 s, 7 samples)
Process Creation                               6680.7 lps   (30.0 s, 2 samples)
Shell Scripts (1 concurrent)                   6638.0 lpm   (60.1 s, 2 samples)
Shell Scripts (8 concurrent)                    689.0 lpm   (60.2 s, 2 samples)
System Call Overhead                        1587949.8 lps   (10.0 s, 7 samples)

System Benchmarks Index Values               BASELINE       RESULT    INDEX
Dhrystone 2 using register variables         116700.0   46225008.8   3961.0
Double-Precision Whetstone                       55.0      10993.7   1998.8
Execl Throughput                                 43.0       4335.2   1008.2
File Copy 1024 bufsize 2000 maxblocks          3960.0     466791.8   1178.8
File Copy 256 bufsize 500 maxblocks            1655.0      67770.3    409.5
File Copy 4096 bufsize 8000 maxblocks          5800.0    1315026.4   2267.3
Pipe Throughput                               12440.0    1870328.4   1503.5
Pipe-based Context Switching                   4000.0     234389.7    586.0
Process Creation                                126.0       6680.7    530.2
Shell Scripts (1 concurrent)                     42.4       6638.0   1565.6
Shell Scripts (8 concurrent)                      6.0        689.0   1148.3
System Call Overhead                          15000.0    1587949.8   1058.6
                                                                   ========
System Benchmarks Index Score                                        1186.3

I have a VirtualBox on my Windows 7. The hardware is A3870K, 512MB memory for this CentOS 6 guest system.


[root@localhost UnixBench]# ./Run
make all
make[1]: Entering directory `/root/UnixBench'
Checking distribution of files
./pgms  exists
./src  exists
./testdir  exists
./tmp  exists
./results  exists
make[1]: Leaving directory `/root/UnixBench'
sh: 3dinfo: command not found

   #    #  #    #  #  #    #          #####   ######  #    #   ####   #    #
   #    #  ##   #  #   #  #           #    #  #       ##   #  #    #  #    #
   #    #  # #  #  #    ##            #####   #####   # #  #  #       ######
   #    #  #  # #  #    ##            #    #  #       #  # #  #       #    #
   #    #  #   ##  #   #  #           #    #  #       #   ##  #    #  #    #
    ####   #    #  #  #    #          #####   ######  #    #   ####   #    #

   Version 5.1.3                      Based on the Byte Magazine Unix Benchmark

   Multi-CPU version                  Version 5 revisions by Ian Smith,
                                      Sunnyvale, CA, USA
   January 13, 2011                   johantheghost at yahoo period com


1 x Dhrystone 2 using register variables  1 2 3 4 5 6 7 8 9 10

1 x Double-Precision Whetstone  1 2 3 4 5 6 7 8 9 10

1 x Execl Throughput  1 2 3

1 x File Copy 1024 bufsize 2000 maxblocks  1 2 3

1 x File Copy 256 bufsize 500 maxblocks  1 2 3

1 x File Copy 4096 bufsize 8000 maxblocks  1 2 3

1 x Pipe Throughput  1 2 3 4 5 6 7 8 9 10

1 x Pipe-based Context Switching  1 2 3 4 5 6 7 8 9 10

1 x Process Creation  1 2 3

1 x System Call Overhead  1 2 3 4 5 6 7 8 9 10

1 x Shell Scripts (1 concurrent)  1 2 3

1 x Shell Scripts (8 concurrent)  1 2 3

4 x Dhrystone 2 using register variables  1 2 3 4 5 6 7 8 9 10

4 x Double-Precision Whetstone  1 2 3 4 5 6 7 8 9 10

4 x Execl Throughput  1 2 3

4 x File Copy 1024 bufsize 2000 maxblocks  1 2 3

4 x File Copy 256 bufsize 500 maxblocks  1 2 3

4 x File Copy 4096 bufsize 8000 maxblocks  1 2 3

4 x Pipe Throughput  1 2 3 4 5 6 7 8 9 10

4 x Pipe-based Context Switching  1 2 3 4 5 6 7 8 9 10

4 x Process Creation  1 2 3

4 x System Call Overhead  1 2 3 4 5 6 7 8 9 10

4 x Shell Scripts (1 concurrent)  1 2 3

4 x Shell Scripts (8 concurrent)  1 2 3

========================================================================
   BYTE UNIX Benchmarks (Version 5.1.3)

   System: localhost.localdomain: GNU/Linux
   OS: GNU/Linux -- 2.6.32-358.2.1.el6.i686 -- #1 SMP Tue Mar 12 21:42:46 UTC 2013
   Machine: i686 (i386)
   Language: en_US.utf8 (charmap="UTF-8", collate="UTF-8")
   CPU 0: AMD A8-3870 APU with Radeon(tm) HD Graphics (5751.0 bogomips)
          Hyper-Threading, x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT, SYSCALL/SYSRET
   CPU 1: AMD A8-3870 APU with Radeon(tm) HD Graphics (5824.3 bogomips)
          Hyper-Threading, x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT, SYSCALL/SYSRET
   CPU 2: AMD A8-3870 APU with Radeon(tm) HD Graphics (5768.3 bogomips)
          Hyper-Threading, x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT, SYSCALL/SYSRET
   CPU 3: AMD A8-3870 APU with Radeon(tm) HD Graphics (5764.0 bogomips)
          Hyper-Threading, x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT, SYSCALL/SYSRET
   17:36:12 up 32 min,  2 users,  load average: 0.10, 0.04, 0.01; runlevel 3

------------------------------------------------------------------------
Benchmark Run: Mon May 06 2013 17:36:12 - 18:04:09
4 CPUs in system; running 1 parallel copy of tests

Dhrystone 2 using register variables       12832548.0 lps   (10.0 s, 7 samples)
Double-Precision Whetstone                     1972.6 MWIPS (10.3 s, 7 samples)
Execl Throughput                                651.2 lps   (29.9 s, 2 samples)
File Copy 1024 bufsize 2000 maxblocks        436935.2 KBps  (30.0 s, 2 samples)
File Copy 256 bufsize 500 maxblocks          167015.6 KBps  (30.0 s, 2 samples)
File Copy 4096 bufsize 8000 maxblocks        740800.5 KBps  (30.0 s, 2 samples)
Pipe Throughput                             1251139.5 lps   (10.0 s, 7 samples)
Pipe-based Context Switching                   9328.6 lps   (10.0 s, 7 samples)
Process Creation                               4598.0 lps   (30.0 s, 2 samples)
Shell Scripts (1 concurrent)                   2813.3 lpm   (60.0 s, 2 samples)
Shell Scripts (8 concurrent)                   1236.1 lpm   (60.0 s, 2 samples)
System Call Overhead                        1952491.6 lps   (10.0 s, 7 samples)

System Benchmarks Index Values               BASELINE       RESULT    INDEX
Dhrystone 2 using register variables         116700.0   12832548.0   1099.6
Double-Precision Whetstone                       55.0       1972.6    358.7
Execl Throughput                                 43.0        651.2    151.4
File Copy 1024 bufsize 2000 maxblocks          3960.0     436935.2   1103.4
File Copy 256 bufsize 500 maxblocks            1655.0     167015.6   1009.2
File Copy 4096 bufsize 8000 maxblocks          5800.0     740800.5   1277.2
Pipe Throughput                               12440.0    1251139.5   1005.7
Pipe-based Context Switching                   4000.0       9328.6     23.3
Process Creation                                126.0       4598.0    364.9
Shell Scripts (1 concurrent)                     42.4       2813.3    663.5
Shell Scripts (8 concurrent)                      6.0       1236.1   2060.1
System Call Overhead                          15000.0    1952491.6   1301.7
                                                                   ========
System Benchmarks Index Score                                         574.5

------------------------------------------------------------------------
Benchmark Run: Mon May 06 2013 18:04:09 - 18:32:04
4 CPUs in system; running 4 parallel copies of tests

Dhrystone 2 using register variables       48856746.0 lps   (10.0 s, 7 samples)
Double-Precision Whetstone                     8268.8 MWIPS (9.8 s, 7 samples)
Execl Throughput                              11202.7 lps   (30.0 s, 2 samples)
File Copy 1024 bufsize 2000 maxblocks        483796.9 KBps  (30.0 s, 2 samples)
File Copy 256 bufsize 500 maxblocks          146739.4 KBps  (30.0 s, 2 samples)
File Copy 4096 bufsize 8000 maxblocks       1200427.0 KBps  (30.0 s, 2 samples)
Pipe Throughput                             5558915.4 lps   (10.0 s, 7 samples)
Pipe-based Context Switching                 121641.1 lps   (10.0 s, 7 samples)
Process Creation                              28685.2 lps   (30.0 s, 2 samples)
Shell Scripts (1 concurrent)                  11394.5 lpm   (60.0 s, 2 samples)
Shell Scripts (8 concurrent)                   1522.1 lpm   (60.1 s, 2 samples)
System Call Overhead                        2975599.7 lps   (10.0 s, 7 samples)

System Benchmarks Index Values               BASELINE       RESULT    INDEX
Dhrystone 2 using register variables         116700.0   48856746.0   4186.5
Double-Precision Whetstone                       55.0       8268.8   1503.4
Execl Throughput                                 43.0      11202.7   2605.3
File Copy 1024 bufsize 2000 maxblocks          3960.0     483796.9   1221.7
File Copy 256 bufsize 500 maxblocks            1655.0     146739.4    886.6
File Copy 4096 bufsize 8000 maxblocks          5800.0    1200427.0   2069.7
Pipe Throughput                               12440.0    5558915.4   4468.6
Pipe-based Context Switching                   4000.0     121641.1    304.1
Process Creation                                126.0      28685.2   2276.6
Shell Scripts (1 concurrent)                     42.4      11394.5   2687.4
Shell Scripts (8 concurrent)                      6.0       1522.1   2536.8
System Call Overhead                          15000.0    2975599.7   1983.7
                                                                   ========
System Benchmarks Index Score                                        1843.2

Based on the testing scores, it is clear that CPU plays more important role here.

Got a Greenlee GT-16 Adjustable Non-Contact Voltage Detector - David Yin's Blog

2013-05-06T07:29:02Z

I think every house need a Voltage Detector. Especially when house owner changes the light bulb.
The day I send my car to Goodyear for service, is a good day. I have a walk and found a store. I went in and purchased this Greenlee GT-16 Adjustable Non-Contact Voltage Detector. It is just below $30.00.

It is a little bit expensive, but it worth.
Let us see the features of it.

Adjustable to safely detect power and low voltage
Safely detects AC voltage without touching the bare conductor
Adjustable for use on power wiring plus lighting, thermostats and other low voltage circuits
Use to detect voltage in outlets, lighting fixtures, wires and cables
Finds breaks in wires
Identifies hot and neutral conductors
Low battery indication
Accessories included: (1) 1.5V AAA battery
Lifetime Limited Warranty

See specifications:

Application : Use To Detect Voltage In Outlets, Lighting Fixtures, Wires And Cables
Battery : (1) 1.5 V AAA
Frequency : 50 - 500 HZ
Measurement Category : CAT IV, 1000 V
Standard : C/US UL Listed, CE Listed
Type : Adjustable, Non Contact
Voltage Rating : 5 - 1000 VAC

Electric Vehicle Charging device on Brentwood Mall - David Yin's Blog

2013-05-02T09:16:29Z

I saw the new device in the parking lot of Brentwood Mall. It looks like below.

I took the picture and googled it.
Leviton is the solution provider. The real company running this service is ChargePoint.

To use this device, you need a signup and get a access card. $25 deposit.
The cost for charging is depends on the owners of the charging device. Most of them in BC are Free.

Sounds cool. I will consider the Electric Car for my next vehicle.

Install htop on Linode VPS - David Yin's Blog

2013-04-30T19:48:55Z

htop is an interactive process viewer for Linux. It is a text-mode application (for console or X terminals) and requires ncurses.
If you used top command before, I would like to tell you that htop is a replacement of top, but even better.

Since I have rpmforge Repository on my VPS, the installation is as simple as one command.

yum install htop

When finished, I run htop command.

Comparison between htop and top

In 'htop' you can scroll the list vertically and horizontally to see all processes and complete command lines.
In 'top' you are subject to a delay for each unassigned key you press (especially annoying when multi-key escape sequences are triggered by accident).
'htop' starts faster ('top' seems to collect data for a while before displaying anything).
In 'htop' you don't need to type the process number to kill a process, in 'top' you do.
In 'htop' you don't need to type the process number or the priority value to renice a process, in 'top' you do.
'htop' supports mouse operation, 'top' doesn't
'top' is older, hence, more used and tested.

official site of htop

How to choose the right router - David Yin's Blog

2013-04-25T21:52:41Z

To choose the router or upgrade your home network, first you should know what standard you need.
There are three main standards on market now.
Standard Max Speed
802.11g 54Mbps
802.11n 600Mbps
802.11ac 1.3Gbps

802.11g was introduced many years ago, I wrote a post eight years ago related the wireless network.
802.11ac is still a draft standard. It means most products from different company are not same. They may not work together compatibly. The good news is that IEEE will issue the final approved version of 802.11ac the end of this year 2013. Here is the timeline.

The Max Speed described above is in theory. When the router working inside the house, walls, furniture, these kind of obstacles reduce the speed by 50%.

There are also frequence, bandwidth, channel issue for your router.
for 802.11g, 2.4GHz, there are 13 channel. 20MHz each channel
for 802.11n, 2.4GHz or 5GHz, 20MHz each channel, bonding channels.
for 802.11ac, 5GHz,
Bonding channels is double the bandwidth, or 40Mhz. It means faster.

One Key point to choose the right router is to double check the current wifi device in house. The build-in wifi adapter in your laptop, the desktop, the cellphones, xbox etc.

My suggestion is 802.11n is the must have. If the 802.11ac product has 802.11n compatible, you can pick it up. And also make sure the 802.11ac draft can be upgraded to the final version when it is available.

How to change the title of frontpage at Joomla 3 - David Yin's Blog

2013-04-23T20:45:16Z

Joomla 3 is new CMS system. Even I tried Joomla 1.5, or 2.0 during past years, I still got lost in Joomla 3.
Here is a How-To to show you the way to change or remove the default title on frontpage at Joomla 3.

Sign in the adminstrator site
Click Menus >> Main Menus
Choose the check box in front of the Home link, then click Edit button
Now, you will see the details of the Home page / front page. Change the menu title as you like, then save and close.

It is as simple as four steps to compete changing title of Frontpage of Joomla 3.