[Rt-devel] rt-4.0.0rc2 eating so much CPU

Odhiambo Washington odhiambo at gmail.com
Wed Jan 26 10:30:56 EST 2011

On Wed, Jan 19, 2011 at 5:50 PM, Evan Horne <Evan_Horne at umit.maine.edu>wrote:

> After upgrading from 3.9.7 to 4.0.0rc1 and then 4.0.0rc2, I was
> experiencing similar slowdown compared to 3.9.7.
> I initially assumed the slow response was because I have RT currently
> running on a virtual machine on a desktop, but that doesn't explain why
> 3.9.7 was seemed so much more responsive on the same VM.
> I grabbed the output with MasonX::Profiler enabled for both 4.0.0RC1 and
> 4.0.0RC2 while loading a page while this issue was occurring. I reverted my
> VM to an old state with RT3.9.7 installed and tried to enable
> MasonX::Profiler, but it wasn't
> producing any extra output for some reason. I'd be happy to play around
> with it some more to get it working if anyone would find that information
> useful.
> Devel mode is off in both of these instances. No more than a couple of
> tickets total in the database. A clean RT_SiteConfig file with nothing but
> MasonX::Profiler enabled doesn't seem to make any difference in page loads.
> The client is Firefox.
> 4.0.0 RC1 Output: http://pastebin.com/xUHP07nz
> 4.0.0 RC2 Output: http://pastebin.com/kFxr0Cg8
> I grabbed the above output before reverting back to 3.9.7. Odhiambo's log
> also shows a long time being taken to process /Elements/HeaderJavascript as
> in my logs.
> After playing around with RT 3.9.7 for a little bit and not getting the
> extra output from MasonX::Profiler, I reverted my VM back to it's current
> state with RT 4.0.0RC2 running and for some odd reason, it's now running
> faster than 3.9.7 was without
> any additional changes. At this point I'd be willing to chalk up my own
> experience to a system configuration issue on my end, but if Odhiambo is
> still experiencing a similar issue, it may be related.
> It never occurred to me to try Chrome's resource tracking feature while I
> was experiencing the issue to see where the delays were coming from on the
> client end until after it had resolved itself.
> Just thought I'd throw out my experiences so far. If I can be of any
> further assistance, let me know.

I am still stuck with this problem, and not sure what is my next move.

Best regards,
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