Posted 5 months ago #
Hello!
I just updated from WP 2.0.11 to 2.3.2 and my cpu load now is exploding! I use many plugins, but to test it, I disabled all plugins and I still have a high cpu load.
Here you can see the different between 2.0.11 and 2.3.2, I updated one 1 o'clock:
http://www.greensmilies.com/wp-content/uploads/2008/01/080120_cpu.png
The traffic is still the same.
Any ideas?
Posted 5 months ago #
maybe this can help:
Trace for /opt/virtual-domains/www.greensmilies.com/index.php
Total Elapsed Time = 1.31
Total System Time = 0.09
Total User Time = 1.14
Real User System secs/ cumm
%Time (excl/cumm) (excl/cumm) (excl/cumm) Calls call s/call Memory Usage Name
--------------------------------------------------------------------------------------
45.1 0.54 0.56 0.56 0.59 0.00 0.00 2745 0.0002 0.0002 0 preg_replace
5.8 0.09 0.09 0.06 0.06 0.01 0.01 8474 0.0000 0.0000 0 strlen
5.8 0.07 1.40 0.07 1.22 0.00 0.10 35 0.0021 0.0377 0 require
3.9 0.04 0.04 0.04 0.04 0.00 0.00 83 0.0006 0.0006 0 base64_decode
3.2 0.04 0.04 0.04 0.04 0.00 0.00 3354 0.0000 0.0000 0 substr
2.6 0.01 0.10 0.03 0.09 0.00 0.02 785 0.0000 0.0001 0 WP_Object_Cache->get
2.6 0.01 0.05 0.03 0.06 0.00 0.01 3142 0.0000 0.0000 0 CachedFileReader->seekto
2.3 0.02 0.02 0.03 0.03 0.00 0.00 1780 0.0000 0.0000 0 preg_match
1.9 0.02 0.02 0.02 0.02 0.00 0.00 1814 0.0000 0.0000 0 str_replace
1.6 0.03 0.03 0.02 0.02 0.00 0.00 546 0.0000 0.0000 0 is_string
1.6 0.02 0.67 0.02 0.64 0.00 0.02 1828 0.0000 0.0004 0 apply_filters
1.6 0.02 0.02 0.02 0.02 0.00 0.00 2168 0.0000 0.0000 0 trim
1.6 0.02 0.02 0.01 0.01 0.01 0.01 1784 0.0000 0.0000 0 preg_quote
1.3 0.00 0.00 0.01 0.01 0.00 0.00 154 0.0001 0.0001 0 merge_filters
1.0 0.01 0.07 0.01 0.05 0.00 0.01 3147 0.0000 0.0000 0 CachedFileReader->read
1.0 0.01 0.01 0.00 0.00 0.01 0.01 1783 0.0000 0.0000 0 htmlspecialchars
1.0 0.01 0.01 0.01 0.01 0.00 0.00 1040 0.0000 0.0000 0 is_array
1.0 0.00 0.00 0.01 0.01 0.00 0.00 333 0.0000 0.0000 0 in_array
1.0 0.01 0.01 0.01 0.01 0.00 0.00 760 0.0000 0.0000 0 is_null
0.6 0.01 0.01 0.01 0.01 0.00 0.00 248 0.0000 0.0000 0 defined
Posted 5 months ago #
OK, I think we found the "problem". I use my Blog to present my Smilies and I added each Smilie to the wpsmiliestrans-array in functions.php. So the array has 1.800 lines. :D
If I remove all Smilies from the array, the load goes done significantly!
But, as you can see in my cpu load graph:
http://www.greensmilies.com/wp-content/uploads/2008/01/cpu-day19-22.png
the load without the large array is much higher than under 2.0.11 with the large array!
Why it was better under 2.0.11?
Any ideas, what I can do? I don't wanna remove the smilies, because they are the topic of my blog and I used them in hundreds of topics...
My Server-Admin also said me, that a lexer is faster than a parser and WP should use it... just his 2 cents.
For examlpe: http://greg.chiaraquartet.net/archives/138-PHP_ParserGenerator-and-PHP_LexerGenerator.html
Thanks for reading! :)
/edit:
I use a dedicated server with an AMD Athlon(tm) 64 X2 Dual Core Processor 4600+ (2400 mhz) and 2 gigs of ram.
Posted 5 months ago #
Nobody?
:(
Here are some more cpu load statistics. The show WP 2.0.11, WP 2.3.2 and WP 2.3.2 with the Wp Super Cache Plugin:
http://www.greensmilies.com/wp-content/uploads/2008/01/080117-24_cpu-week.png
Same traffic and smiley array as under WP 2.0.11, will explode the load under WP 2.3.2. Super Cache did a good job but 2.0.11 was better...
Posted 5 months ago #
k, still no reply, continuing one-on-one interview. :D
As I wrote above, I extended the wpsmiliestrans-array in functions.php up to 1.800 lines. Since I removed all Smilies from this array and replaced them with only 20 Smilies, the cpu load goes down. I also use WP Super Cache now.
The load goes down, but is still higher than under 2.0.11, I hope, it will be better under 2.5
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