One of the most annoying things about working with performance traces is that they include information about everything in the system. That’s also one of the great things.
However, most of the time, for most problems, there are very few things you are specifically looking for. Like in my case I’m looking at IE problems and I already know all the IE dlls. If the dude happens to have 82 other programs running and idle I do not need to download their symbols. There is no easy way to specify the symbols I care about so I wrote this local symbol proxy. Beware it’s slightly cheesy but it’s super helpful because you neither have to download or cache symbols you don’t care about. I haven’t tested it extensively but it works for me. If you find bugs, maybe you can stick it on a github somewhere and start maintaining it for reals. I feel like I’ve done my part 🙂
The source code is here.
As usual it comes with no warrantee and no rights are implied etc. It’s just a quick sample I threw together.
To use it, create your own symfilter.txt file with one pattern on each line. It expects to find in the current directory when you start it. Then run the thing. Any requests that do not contain your strings will get a 404 return. Everything else will be forwarded to the indicated server for resolution.
If your server path used to be
change it to
The bit before the | is used to find the actual server, the request will be changed to be http://someserver/somepath/…whatever
You could imagine having several configuration files listening on several ports but I leave that as an exercise to the reader. This thing saves me a ton of time by not fetching symbols I don’t need.
from your server