Looooong renders suddenly

Rails
1

This is odd. I’m suddenly getting extremely long render times (25-44
seconds!) in my app. It’s happening with both Mongrel and WEBrick in dev
mode. And nothing strange is showing up in the development log. Any
suggestions on how to track this down?

2

Hmmm… okay, I’ve confirmed that it is not a problem with my app.
Everything works great on other computers. But on my main machine, every
render rails does takes several seconds each. I’m running from
vendor/rails, so that seems to be fine (since it works fine on other
systems). Does it sound like my ruby install somehow got hosed? Anything
I can do to test it out?

3

Ryan W. wrote:

Hmmm… okay, I’ve confirmed that it is not a problem with my app.
Everything works great on other computers. But on my main machine, every
render rails does takes several seconds each. I’m running from
vendor/rails, so that seems to be fine (since it works fine on other
systems). Does it sound like my ruby install somehow got hosed? Anything
I can do to test it out?

Sounds like you’re out of memory and dying by swap.
What OS is your machine running? What % of time is it spending on IO
wait?

phil

4

Sounds like you’re out of memory and dying by swap.
What OS is your machine running? What % of time is it spending on IO
wait?

OSX 10.4

It was spending a good 20+ seconds on wait. I rebooted a couple of times
and the issue persisted. Then it suddenly went away. Everything works as
normal now. Very odd. I’ve never had that happen before. Made for a very
frustrating hour or so trying to track it down in my app!

5

Could it have been Spotlight indexing a bunch of new files you added?
Just an idea…

Good point. I should have looked at my processes first thing. I just
knee-jerkingly assumed it was in my app or ruby install, so I jumped to
other boxes for comparison. If it happens again, I’ll check that first.

Thanks!

6

OSX 10.4

It was spending a good 20+ seconds on wait. I rebooted a couple of times
and the issue persisted. Then it suddenly went away. Everything works as
normal now. Very odd. I’ve never had that happen before. Made for a very
frustrating hour or so trying to track it down in my app!

Could it have been Spotlight indexing a bunch of new files you added?
Just an idea…

  • Danny