CustomPCSoftware.com

Have you ever tried to search for free SSCC (UCC/EAN-128) barcodes generation services or programs? If yes - you should know there were NO free programs to create SSCC-18, postal code barcodes or shop code barcodes.

We’re happy to announce beta version of the completely free SSCC barcodes generation service. It’s very easy to use, just call it using URL like this:

http://custompcsoftware.com/sscc/sscc.php?sscc=[SYMBOL]&ai=[AI]

where SYMBOL is the SSCC code itself, AI is an application identifier (see here for full list).

Examples
1. Create SSCC-18 barcode:

http://custompcsoftware.com/sscc/sscc.php?sscc=00112233445566778899

2. Create ship to postal code barcode:

http://custompcsoftware.com/sscc/sscc.php?sscc=54720&ai=420

Contact us by leaving a comment here if you need to integrate this into your application (no matter what programming language it’s written on).

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Hi! I’m just wondering if there is a tool you’d like to have for free or at little cost like UPC validator, ISBN10 to ISBN13 converter, bar code generator (e.g. SSCC-18)? Leave a comment - there is a big chance you’ll get your tool. For free.

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Recently we tested latest versions of Joomla and Drupal. Results (see below) are very… very interesting.

1. Target systems
Joomla 1.5.9 (native SEF, native settings)
Drupal 6.10 (native SEF, native settings)

2. Hardware
Intel(R) Core(TM)2 Duo CPU E8200 @ 2.66GHz, 4GB RAM

3. Software
Linux 2.6.27.12-78.2.8.fc9.x86_64 SMP
Apache Version 2.2.9
PHP Version 5.2.6 (mod_php)
MySQL Version 5.0.51a

4. Methodology

Localhost Apache Benchmark (ab) queries, 10 000 times with concurrency level of 5.

The target page is single article.

5. Results.

Drupal (caching = off):

Time taken for tests: 369.477 seconds
Requests per second: 27.07 [#/sec] (mean)
Time per request: 184.738 [ms] (mean)
Time per request: 36.948 [ms] (mean, across all concurrent requests)

Drupal (caching = on):

Time taken for tests: 48.988 seconds
Requests per second: 204.13 [#/sec] (mean)
Time per request: 24.494 [ms] (mean)
Time per request: 4.899 [ms] (mean, across all concurrent requests)

Joomla (caching = off):

Time taken for tests: 522.661 seconds
Requests per second: 19.13 [#/sec] (mean)
Time per request: 261.331 [ms] (mean)
Time per request: 52.266 [ms] (mean, across all concurrent requests)

Joomla (caching = on):

Time taken for tests: 390.130 seconds
Requests per second: 25.63 [#/sec] (mean)
Time per request: 195.065 [ms] (mean)
Time per request: 39.013 [ms] (mean, across all concurrent requests)

6. Summary.

Non-cached Drupal 1.4 times faster than Non-cached Joomla.
Cached Drupal 8 times faster than cached Joomla.

Turning on cache speeds up Drupal for 7.7 times.
Turning on cache speeds up Joomla for 1.3 times.

Drupal wins?

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I have created batch ISBN to ISBN13 converter some time ago. Here is another useful tool — online batch UPC validator. Please leave bug reports and thanks (if any ) in comments.

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Компании срочно требуются PHP-разработчики. Основные требования:

1. Опыт работы в веб-программировании не менее двух лет
2. Возраст не младше 21 года
3. Знание ООП и отличий между PHP 4.x и PHP 5.x
4. Желательно проживание в г. Харькове или г. Сумы

Подробности можно узнать, оставив комментарии к этому сообщению либо по ICQ: 142806591

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Never! Never join tables on fields with different types. Say, you have one table with `zip` varchar(5) and another with `zip` int(5). As a result of …left join … on a.zip=b.zip you will get perfomance loss up to 1000 times.

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Did you know PHP 4.x cannot take reference from $this? So, code below won’t work:

$reference = &$this;

It took me about 30 minutes to figure out what exactly was wrong with my code. So, I hope this post will help somebody else to avoid the problem.

What I did to fix it. Just added another property named “reference” to class and initialized it right after creating class instance. If anybody knows another way - please let me know.

Thank you.

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Hi!

Today I’d like to share some interesting results of performance tests for 3 most popular CMS/Blog systems: Drupal, Joomla! and WordPress.

Tests were done on dev debian machine using Apache ab utility.

MySQL settings:

| join_buffer_size | 131072 |
| key_buffer_size | 16777216 |
| key_cache_age_threshold | 300 |
| key_cache_block_size | 1024 |
| key_cache_division_limit | 100 |

| query_alloc_block_size | 8192 |
| query_cache_limit | 1048576 |
| query_cache_min_res_unit | 4096 |
| query_cache_size | 16777216 |
| query_cache_type | ON |
| query_cache_wlock_invalidate | OFF |

Apache settings:

<IfModule prefork.c>
StartServers 5
MinSpareServers 5
MaxSpareServers 10
MaxClients 20
MaxRequestsPerChild 0
</IfModule>

All systems have about 20,000 articles and 200+ links on page.

Versions: drupal 5.1, wordpress 2.2, joomla! 1.0.12

Results for ab -n 200 -c 4:

drupal-sef-no-aliases:
Requests per second: 2.43 [#/sec] (mean)
drupal-sef-20000-aliases:
Requests per second: 1.21 [#/sec] (mean)

joomla1-no-sef:
Requests per second: 2.75 [#/sec] (mean)
joomla1-patched-opensef:
Requests per second: 1.87 [#/sec] (mean)

wordpress-numeric-permalinks:
Requests per second: 0.65 [#/sec] (mean)
wordpress-date-name-permalinks:
Requests per second: 0.64 [#/sec] (mean)

Larger number means better performance. Joomla rocks?

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Что ж, семинар состоялся. И, как мне кажется, прошел довольно таки успешно

Well, we passed over the first intown programmers conference. Pretty nice, what else can I say?

Team Meating #1

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Мы считаем себя разработчиками и каждый день боремся каждый со своми задачами. Мы постоянно заняты и часто красивые решения проблем или интересные находки не добираются даже до наших блогов. Все мы владеем кое-чем уникальным — своим опытом. Предлагаем его обменять по курсу один к одному на опыт коллег и неформальное общение с единомышленниками.

Примерная программа:
- Очное знакомство, каждый представится и обозначит круг своих интересов в разработке
- Неформальные доклады

Место и время проведения: Украина, г. Сумы, Центр Европейской информации (библиотека им. Крупской, 3-й этаж), 9 июня (суббота), 15:00. Всех встретят на входе.

Ориентировочные темы докладов:
1. Краткий обзор CMS Joomla, Drupal, Typo3 и WordPress. Используемые подходы, плюсы и минусы. Результаты crash-тестов. Докладчики: alfim(Joomla, WordPress, Drupal), ArtVolk(Typo3, критерии выбора CMS: субъективный взгляд)
2. Организация рабочего процесса небольшой группы разрабочиков (системы контроля версий, баг-трекеры, работа с командой). Основной докладчик - ArtVolk

Организаторы - alfim, ArtVolk.

Заявку на участие можно оставить в комментариях. Задать вопросы можно там же или в ICQ: 142806591

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