GZIP being more selective

[Pilot]

Gizp output improves response times greatly with my rather remote server. Unfortunately at busy periods it kills the CPU and I have had to turn it off.

What I want is a way to have it partially on. One or more of these:

1 - On when CPU load is under xx % and automatically Off above that to stop the CPU meltdown.

2 - On all the time for admin/moderators and maybe members and OFF for guest users.

3 - On by particular user or forum or whatever.

I think option 2 might be easy to hack - is there a script where the GIZP CP option is examined and I could easily add a test for usergroup? Can someone code this up (I am not a PHP man).

Thanks. The main aim is to let me have GZIP on for key users even if all the users can't have it on as the CPU gets overloaded.

[dslteam]

why do you want to turn the GZIP off for the guests ???

[Pilot]

Because my CPU gets overloaded. If 40% of my users are guests I can reduce the effect GZIP is having by 40% BUT still give the members the improved response times.

Half a loaf is better than nothing. At present no-one can benefit as the CPU load is too high, I want some of the users to have it, but not all (to conserve the server resources).

[Pilot]

Come on - can't someone give me a clue where this is coded?

I mean have you experienced the repsonse time improvement with GZIP - it is really worth having, but for all users it may kill your server (it did mine).

[Pilot]

PLEASE help on this guys - I can see the GZIP code in the functions.php - but I am no hacker - BUT I can imagine it would only be a one line change to check for a certain user groupid before allowing GZIP to proceed.

This way moderators could get the speed of GZIP without killing the server by all users having it! Think about it - this would help a lot of you out there.