High MySQL CPU Load

Hello All,
I am currently running the following:
OS X Server 10.5.5
2x3GHz Multi-Core Xserve
8GBs RAM
MySQL Server v5.0.67
One problem I am having is that when someone does a MySQL database search on a particular webpage the CPU load can get upwards to 400% render the search useless to all other clients. The MySQL CPU load is getting so high that no one can then do a search and the results never come back until the other queries are finished first.
Why won't MySQL use the 8GBs of memory I have installed instead of sucking up CPU? Is there a way to allocate this in the OS or terminal? If not, should I be optimizing MySQL settings instead to better work with my query statement and 8GBs of memory that I have installed? I'm not exactly sure what to adjust within the MySQL settings if this is the case.
Any help would be greatly appreciated!
Thank you very much!

@Camelot,
I have not configured anything, everything is default install. I have about 6 devs on this box at all times and we do not have a MySQL admin. I really need to fine tune this setup as the DBs are starting to grow very big. I am looking for any help at this point and want to start fixing this now before it becomes more of a problem. I am going to start researching the MySQL dev zone ASAP.
@Mabel
Here is the output of MySQLtuner:
*Maybe I need Snow Leopard to utilize all 8GBs of RAM??*
-------- General Statistics --------------------------------------------------
[--] Skipped version check for MySQLTuner script
[OK] Currently running supported MySQL version 5.0.67-log
[!!] Switch to 64-bit OS - MySQL cannot currently use all of your RAM
-------- Storage Engine Statistics -------------------------------------------
[--] Status: -Archive -BDB -Federated +InnoDB -ISAM -NDBCluster
[--] Data in MyISAM tables: 5M (Tables: 16)
[--] Data in InnoDB tables: 138M (Tables: 51)
[OK] Total fragmented tables: 0
-------- Performance Metrics -------------------------------------------------
[--] Up for: 99d 16h 39m 42s (53K q [0.006 qps], 1K conn, TX: 17B, RX: 2M)
[--] Reads / Writes: 99% / 1%
[--] Total buffers: 442.0M global + 12.4M per thread (100 max threads)
[OK] Maximum possible memory usage: 1.6G (41% of installed RAM)
[OK] Slow queries: 0% (0/53K)
[OK] Highest usage of available connections: 8% (8/100)
[OK] Key buffer size / total MyISAM indexes: 384.0M/123.9M
[OK] Key buffer hit rate: 99.8% (10K cached / 18 reads)
[!!] Query cache efficiency: 0.8% (52 cached / 6K selects)
[OK] Query cache prunes per day: 0
[!!] Sorts requiring temporary tables: 11% (5 temp sorts / 44 sorts)
[!!] Temporary tables created on disk: 38% (11K on disk / 29K total)
[OK] Thread cache hit rate: 99% (8 created / 1K connections)
[OK] Table cache hit rate: 91% (76 open / 83 opened)
[OK] Open file limit used: 7% (86/1K)
[OK] Table locks acquired immediately: 100% (10K immediate / 10K locks)
[!!] InnoDB data size / buffer pool: 138.2M/8.0M
-------- Recommendations -----------------------------------------------------
General recommendations:
Enable the slow query log to troubleshoot bad queries
When making adjustments, make tmptable_size/max_heap_tablesize equal
Reduce your SELECT DISTINCT queries without LIMIT clauses
Variables to adjust:
querycachelimit (> 1M, or use smaller result sets)
sortbuffersize (> 2M)
readrnd_buffersize (> 8M)
tmptablesize (> 32M)
maxheap_tablesize (> 16M)
innodbbuffer_poolsize (>= 138M)
Should I just go with these adjustments for now or do you guys recommend anything else?
Thank you very very much guys!!!
Message was edited by: spraguga

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Last edited by CaptainChaos (2010-02-18 09:39:18)

i've got news...
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Hi,
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PID Runtime(ms)   Invoked      uSecs   5Sec   1Min   5Min TTY Process
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PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
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7777666668888888888999998888877777777766666777777777777777
6666888880000044444222220000000000333399999555557777755555
100
90 *****
80 **** ******************** ***************
70 **********************************************************
60 **********************************************************
50 **********************************************************
40 **********************************************************
30 **********************************************************
20 **********************************************************
10 **********************************************************
0....5....1....1....2....2....3....3....4....4....5....5....
0 5 0 5 0 5 0 5 0 5
CPU% per second (last 60 seconds)
9999988999999999888989899999999889999999999999999999999999
1522389859375081979774546389531690556610500213560563134442
100 * *** ** * * * *#* **** * ** **
90 **************************##******************************
80 #############*#########*##################################
70 ##########################################################
60 ##########################################################
50 ##########################################################
40 ##########################################################
30 ##########################################################
20 ##########################################################
10 ##########################################################
0....5....1....1....2....2....3....3....4....4....5....5....
0 5 0 5 0 5 0 5 0 5
CPU% per minute (last 60 minutes)
* = maximum CPU% # = average CPU%
9999999999999999999999999999999999999999999999999
9999999999999999999999999999998999999999999999999
100 *************************************************
90 *****##******************************************
80 #################################################
70 #################################################
60 #################################################
50 #################################################
40 #################################################
30 #################################################
20 #################################################
10 #################################################
0....5....1....1....2....2....3....3....4....4....5....5....6....6....7.
0 5 0 5 0 5 0 5 0 5 0 5 0
CPU% per hour (last 72 hours)
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mls aging normal 45
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-Traceback= 4035A898 4036D818 4036D9AC 4166696C 4036F228 4036F310 4166BB70 4166BB5C
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Thomas

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Kind regards,
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http://imageshack.us/f/38/xorgload.png
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Well, it seems most of these statements can be found in most first forum posts, so I'll stop to bore you...
The problem: Playing flash videos or animations causes incredible processor load: Even youtube takes a whole CPU core (or even a little more), top shows around 80% for Xorg and around 20-30% for Firefox (a little less with Opera). I'm on Arch64 with XFCE, Athlon X2 4600+, NVidia 8200 chipset (which has severe driver problems anyway; I'm using the latest NVidia beta driver). I'd try the open source nvidia driver, but (it seems that) there's no support for my chipset yet.
Currently I'm using Adobe's Flash64 alpha, before that I used various versions fo the nspluginwrapper. 32-bit Flash also caused high CPU load, but it wasn't that much and it may have been related to nspluginwrapper rather than anything else; however I have got the impression that things became even worse with the switch to the x64 alpha (performance-wise; on the other hand, it at least loads faster and doesn't crash anymore). Like said before, youtube takes one core, but it mostly works ok then, but videos with higher resolutions that youtube's are practically impossible to watch (except when there is very little movement in the film). Neither Flash hardware acceleration on nor off makes any difference.
I've already read half of the web, searched in forums, wikis, etc., but didn't find anybody with the same problem. When Flash64 was released and people were reporting good improvements, I was hoping it would be the same for me...
What I'm looking for is suggestions of things to try... I'm out of ideas what to try and where to look. It just seems strange that I seem to have problems that others don't...
Thanks for reading and for any comments.

cerbie wrote:And, do I know you from somewhere--a little more Windows-centric--or are there many ElkMonsters, out here?
Hehe, I'm also wondering how many Cerbies are out there...
Really funny. The internet is a small place, obviously. Us meeting in a Linux forum also explains why nobody writes to the LSML anymore.

HELP! Computer shutting down while loading FL studio Plugins! High CPU load?!

Good day everyone. I am in dire need of some help concerning my Hp Pavilion p6-2330 . I am a producier and I use a programmed called FL studio.
I've never had this problem before but now it happens almost everytime. When I open a project with a lot of VST plug-ins or a new VST plug-in it just immeadiatly prompts windows "shutting down". I am not sure if its exclusive to FL studio or a High CPU load in general.
I've tried a lot. Replaced my PSU. Blow out the dust from my hardive throuroughly. I really doubt its a overheating problem because it only happens when opening a project with a lot of vst plugins or opening a new vst on top. and my CPU isnt hot
Is there a crash report i can look at to see the reason its shutting down? What can i do?!

Hi,
The following link shows specs of your computer:
   http://h20564.www2.hp.com/hpsc/doc/public/display?docId=emr_na-c03499435
given "only happens when opening a project with a lot of vst plugins or opening a new vst on top." I think the cheapest option now is to increase RAM from 6GB to say 16GB (using information from the above link). Before goinng out to buy more RAM, you may want to insrease system page file first (similar for Windows 8.1):
   http://windows.microsoft.com/en-au/windows/change-virtual-memory-size#1TC=windows-7
or
   http://www.softwareok.com/?seite=faq-Windows-8&faq=133
Regards.
BH
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