-talk
Subject: Re: JVM Tuning and Garbage Collection
Eventually I'm going to want to solve these spikes.. I think SQL Profiler
might help me figure stuff out but also having Cacti installed and
monitoring network and disk and cpu activity more accurately than the task
manager might help me debug
On Sun, Feb 8, 2009 at 3:27 PM, Mark Kruger mkru...@cfwebtools.com wrote:
What are your settings for client variables?
We don't use them. Nor do we use session variables. Makes clustering
a lot easier =)
--
Rick Root
New Brian Vander Ark Album, songs in the music player and cool behind
the
On Fri, Feb 6, 2009 at 3:26 AM, Jochem van Dieten joch...@gmail.com wrote:
Do you really have that many templates that you need a 256 MB Max Perm
size or are you just guessing? For a much deeper overview of what is
happening add the following options:
-XX:+PrintGCTimeStamps
using 1.6.0_12 yet? Any reasons to or not to switch from 11 to 12?
Justin
-Original Message-
From: Cutter (CFRelated) [mailto:cold.fus...@cutterscrossing.com]
Sent: Thursday, February 05, 2009 9:00 AM
To: cf-talk
Subject: Re: JVM Tuning and Garbage Collection
Rick,
We run very
On Sat, Feb 7, 2009 at 12:10 PM, Justin Hansen jhan...@uhlig.com wrote:
Is anyone using 1.6.0_12 yet? Any reasons to or not to switch from 11 to 12?
We just switched to 12 from the CF8 default jvm .. no problems so far.
Rick
On Fri, Feb 6, 2009 at 1:15 AM, Rick Root wrote:
I lowed the memory on each instance to 768m - min and max - and added
the garbage collection interval. I also increased the maxpermsize
java.args=-server -Xmx768m -Xms768m -Dmail.host=www.classcreator.com
-Dsun.io.useCanonCaches=false
: Thursday, February 05, 2009 7:15 PM
To: cf-talk
Subject: Re: JVM Tuning and Garbage Collection
I've taken advice from several of you and restarted my services... so
far so good.
I lowed the memory on each instance to 768m - min and max - and added
the garbage collection interval. I also
rate.
-Mark
-Original Message-
From: Rick Root [mailto:rick.r...@webworksllc.com]
Sent: Thursday, February 05, 2009 6:15 PM
To: cf-talk
Subject: Re: JVM Tuning and Garbage Collection
I've taken advice from several of you and restarted my services... so far so
good.
I lowed the memory
On Fri, Feb 6, 2009 at 3:26 AM, Jochem van Dieten joch...@gmail.com wrote:
Do you really have that many templates that you need a 256 MB Max Perm
size or are you just guessing?
you got me :) We only have a few hundred templates, but we've got
7,000 unique web sites all running in a single
On Fri, Feb 6, 2009 at 8:36 AM, Gaulin, Mark mgau...@globalspec.com wrote:
If you have SQL Server you can run the SQL profiler to watch for slow
queries; I've used this to isolate the queries that were actually slow
(lots of read/writes or cpu, for example) from the queries that were
slow
Eventually I'm going to want to solve these spikes.. I think SQL
Profiler might help me figure stuff out but also having Cacti
installed and monitoring network and disk and cpu activity more
accurately than the task manager might help me debug some things to.
So, my server is experience fairly
On Fri, Feb 6, 2009 at 6:02 PM, Rick Root wrote:
On Fri, Feb 6, 2009 at 3:26 AM, Jochem van Dieten wrote:
Do you really have that many templates that you need a 256 MB Max Perm
size or are you just guessing?
you got me :) We only have a few hundred templates, but we've got
7,000 unique
, 2009 12:39 PM
To: cf-talk
Subject: Re: JVM Tuning and Garbage Collection
Eventually I'm going to want to solve these spikes.. I think SQL
Profiler might help me figure stuff out but also having Cacti installed
and monitoring network and disk and cpu activity more accurately than
the task manager
/collapsing tree-view style format, but SQL 2000 does not (even
though help mentions it). I miss this feature.
-Original Message-
From: Rick Root [mailto:rick.r...@webworksllc.com]
Sent: Friday, February 06, 2009 12:39 PM
To: cf-talk
Subject: Re: JVM Tuning and Garbage Collection
Dear cf-talk,
I'm working on a site that averages about 10 requests per second over
the course of a 24 hour period... of course it's considerably more
active during peak time periods (actually about 9am-midnight, with
peak activity between 8 and 10pm.
We spread this across 3 instances with 1gb
Rick,
We run very similar traffic. We found GC to be much better, for our app,
when using the 1.5.0_14 JVM, over the default CF8 JVM. We hired Mike
Brunt to come in and consult with us (some of the best money we ever
spent). This may be better with the 1.6.0_11 JVM, but we haven't tested
There are a few things I see in your JVM settings.
The one major item I see is your not setting a time interval for running
garbage collections. This means the default time is being used and this is
known to cause issues during higher traffic occasions. Your going to want
to add these
On Thu, Feb 5, 2009 at 11:10 AM, Wil Genovese jugg...@visi.com wrote:
There are a few things I see in your JVM settings.
The one major item I see is your not setting a time interval for running
garbage collections. This means the default time is being used and this is
known to cause issues
What is running your GC? Nothing in the JVM settings you posted shows how
often your GC is running therefore to me it looks like your using the
default values which is one minute.
So the settings I posted are for 10 minute intervals. We've had great
results with that interval. There are other
Depending on how your app handles things you can address the frequency
of GC but also change the _method_ of GC as well.
Pete Freitag gives a great explanation on the different methods of GC:
http://www.petefreitag.com/articles/gctuning/ It's for 1.42 but it
gets the general definitions across.
I've taken advice from several of you and restarted my services... so
far so good.
I lowed the memory on each instance to 768m - min and max - and added
the garbage collection interval. I also increased the maxpermsize
java.args=-server -Xmx768m -Xms768m -Dmail.host=www.classcreator.com
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