phpthumb speed

iamrobert
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10 years 5 months ago #52165 by iamrobert

phpthumb speed was created by iamrobert

I am looking for some advice on speeding up a site.

The site is quite image heavy:

www.brassmonkeytaipei.com/

As it uses phpthumb to generate the images - I am thinking this could slow it down.

Now - I have increased the cache size to 3gb - but it doesn't seem to make much of a difference. The site also uses cloudflare ( www.cloudflare.com/ ).

Unfortunately because the images follow this format:

Code:

/phpThumb.php?src=myimage.jpg&w=100&h=100

they can't be served from cloudflare.

Now - I have been reading:
mrphp.com.au/blog/image-cache-us ... modrewrite

I am thinking that if you use modrewrite to rewrite it -
cloudflare could serve the image. Has anyone tried this approach?

Thanks,

Robert

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ggppdk
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10 years 5 months ago #52168 by ggppdk

Replied by ggppdk on topic phpthumb speed

Hello

-- in such cases it is best to use 1 of the fixed thumbnail sizes of the image/gallery field,

these are only calculated once

where do you use phpThumb ? in the universal module ?
there is parameter to use one of the fixed sizes of the image field.

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iamrobert
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10 years 5 months ago #52169 by iamrobert

Replied by iamrobert on topic phpthumb speed

Thanks for the answer.

I use it two ways:

1. Universal Module

Code:

<img <?php echo $force_height_feat." ".$force_width_feat; ?> src="<?php echo $item->image; ?>" alt="<?php echo flexicontent_html::striptagsandcut($item->fulltitle, 60); ?>" />

2. Category:

Code:

<?php 
				if ($this->params->get('lead_use_image', 1)) :
					if (!empty($img_field_name)) :
						FlexicontentFields::getFieldDisplay($items[$i], $img_field_name, $values=null, $method='display');
						$img_field = & $items[$i]->fields[$img_field_name];
						$src = str_replace(JURI::root(), '', @ $img_field->thumbs_src[$img_field_size][0] );
					else :
						$src = flexicontent_html::extractimagesrc($items[$i]);
					endif;
						
					$RESIZE_FLAG = !$this->params->get('lead_image') || !$this->params->get('lead_image_size');
					if ( $src && $RESIZE_FLAG ) {
						// Resize image when src path is set and RESIZE_FLAG: (a) using image extracted from item main text OR (b) not using image field's already created thumbnails
						$w		= '&amp;w=' . $this->params->get('lead_width', 200);
						$h		= '&amp;h=' . $this->params->get('lead_height', 200);
						$aoe	= '&amp;aoe=1';
						$q		= '&amp;q=95';
						$zc		= $this->params->get('lead_method') ? '&amp;zc=' . $this->params->get('lead_method') : '';
						$ext = pathinfo($src, PATHINFO_EXTENSION);
						$f = in_array( $ext, array('png', 'ico', 'gif') ) ? '&amp;f='.$ext : '';
						$conf	= $w . $h . $aoe . $q . $zc . $f;
						
						$base_url = (!preg_match("#^http|^https|^ftp#i", $src)) ?  JURI::base(true).'/' : '';
						// old $thumb = JURI::base(true).'/components/com_flexicontent/librairies/phpthumb/phpThumb.php?src='.$base_url.$src.$conf;
						$thumb = JURI::base(true).'/components/com_flexicontent/librairies/phpthumb/phpThumb.php?src='.$src.$conf;
						$thumbx = JURI::base(true).'/images/bm.jpg';
					} else {
						
						$thumb = $src;
					}
				endif;
			?>

Code:

<img src="<?php echo $thumb; ?>" alt="<?php echo htmlspecialchars($items[$i]->title, ENT_COMPAT, 'UTF-8'); ?>" />

Is this the best way?

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ggppdk
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10 years 5 months ago #52188 by ggppdk

Replied by ggppdk on topic phpthumb speed

Hello

both of them have parameter to use the thumbnails produced already by the image-gallery field:

small
medium
large

without using phpThumb to resize !!

see our performance guide:
www.flexicontent.org/documentati ... mance.html

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iamrobert
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10 years 4 months ago #52698 by iamrobert

Replied by iamrobert on topic phpthumb speed

Hi Ggppdk,

What we were finding was that when we load lots of images - and fields - it adds loads of queries to the database. So - the initial loading time for first byte was 1.8 seconds.

If we hardcode in the fields in our mod_flexicontent template file it cuts the number of db queries down substantially - from 285 to 116 queries and 42mb to 25mb memory usage.

So - consequently the page is faster:
www.brassmonkeytaipei.com/bmx/

I realize this won't work for everyone - but its cut our loading time by 2 seconds.

Code:

<?php 
$db =& JFactory::getDBO();
$db->setQuery("SELECT field_id, value FROM #__flexicontent_fields_item_relations Where item_id=".$item->_row->id);
$itemdata = $db->loadObjectList();
					foreach($itemdata as $bws_field){
						
						// IMG
						if($bws_field->field_id ==25){
							$item_value =  unserialize($bws_field->value);
						}
						// TITLE CHN
						if($bws_field->field_id ==15){
							$item->_row->fieldvalues[15][0] =  $bws_field->value;
						}
						//SUBTITLE ENG
						if($bws_field->field_id ==34){
							$item->_row->fieldvalues[34][0] =  $bws_field->value;
						}
						//SUBTITLE CHN
						if($bws_field->field_id ==38){
							$item->_row->fieldvalues[38][] =  $bws_field->value;
							
						}
						
						
					}
					
					$bws_url = JURI::base().'images/flexicontent/s_'.$item_value['originalname'];
					
					
					?>

Code:

<?php if ($mod_link_image_feat) : ?>
<img <?php echo $force_height_feat." ".$force_width_feat; ?> src="<?php echo $bws_url; ?>" alt="<?php echo flexicontent_html::striptagsandcut($item->fulltitle, 60); ?>" />
<?php endif; ?>

Thanks,

Robert

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ggppdk
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10 years 4 months ago #52699 by ggppdk

Replied by ggppdk on topic phpthumb speed

Hello

in case that you have many images but you have disk space

- you can also increase phpThumb cache size (now default is 100MB only)
- you can increase the expire time (now it is 30 days)

this way the thumbnails will not be recalculated when any of the 2 above is reached

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